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Preprint ARTICLE | doi:10.20944/preprints201804.0318.v2

Techno-Economic Feasibility of Hybrid Solar Photovoltaic and Battery Energy Storage Power System for a Soshanguve Mobile Cellular Base Station in South Africa

Banjo Ayoade Aderemi, SP Daniel Chowdhury, Thomas O. Olwal, Adnan M. Abu-Mahfouz

Subject: Engineering, Electrical And Electronic Engineering Keywords: Solar PV, Green Energy, Hybrid Power Source, Mobile Cellular Base Station, OPEX, Solar Irradiance

Online: 25 July 2018 (14:30:45 CEST)

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Over the years, sustainability, impact on the environment, as well as the operation expenditure have been a major concern to the deployment of mobile cellular base stations worldwide. This is because the mobile cellular base stations are known to consume a high percentage of power within the mobile cellular network. Such energy consumption contributes to the emission of Greenhouse Gases (GHG) through the use of conventional diesel generating a set. As a result, the mobile cellular operators are faced with the dilemma of minimising the power consumption, GHG emission, and the operation cost, while improving the Quality of Service of the networks. In attempting to find a solution, this study presents the feasibility and simulation of a solar photovoltaic (PV) with battery hybrid power system (HPS) as a predominant source of power for a specific mobile cellular base station site situated in Soshanguve area of the city of Pretoria, South Africa. It also presents the technical development, showed the environmental advantage and cost benefits of using a solar PV-battery HPS to power a base station site of a 24 hrs daily load of 241.10 kWh/d and the peak load of 20.31 kW as compared to using the HPS of solar PV-diesel generating set-battery. The solar resource pattern for the city of Pretoria was collected from The National Aeronautics and Space Administration and modelled statistically. Thus, the statistical modelling done using solar radiation resource exposure characteristic patterns of Pretoria, South Africa, revealed an average annual daily solar radiation of 5.4645 Wh/m2/d and 0.605 clearness index. The simulation and the design were done using the Hybrid Optimization Model for Electric Renewables and Matlab/Simulink software. The simulation finding shows that the HPS of solar PV-battery combination has about 59.62 % saving on Net Present Cost, Levelized Cost of Energy, and 80.87% saving on Operating cost as against conventional BS powered with Gen Set-Battery.

Preprint BRIEF REPORT | doi:10.20944/preprints202007.0503.v1

Beekeeping in Pakistan (History, Potential, and Current Status)

Khalid Khan

Subject: Biology And Life Sciences, Insect Science Keywords: beekeeping; honey bees; honey production; bee forage plants; honey producing capacity

Online: 22 July 2020 (06:26:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0025.v1

Modeling and Simulation of Fuzzy logic based Hybrid power for Electrification System in case of Ashuda Villages

Abaraham Hizkiel, Gantasala Lakshmi

Subject: Engineering, Electrical And Electronic Engineering Keywords: Key Words: PV-Wind-Hydro Hybrid Power System, Dynamic Modeling, Load Profile, Grid Extension, smart micro grid, fuzzy logic controller, and mat lab/Simulink

Online: 2 October 2018 (14:03:38 CEST)

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ABSTRACT Ethiopia is a developing country, where majority of the population lives in rural areas without access to electricity. 83% of the total population of the country use traditional biomass energy as a basic source of energy. In contrast, the country is endowed with sufficient renewable energy resources which can be used as a standalone electric energy supply system for electrifying remote areas of the country. These resources are mainly micro hydropower and wind which can be used individually or the best combination of one another. The application of hybrid renewable energy system has become an important alternative solution for rural electrification program. The Modeling and control of a hybrid PV-Wind-Hydro DG system is also addressed. Dynamic models for the major system components, namely, wind energy conversion system, PV energy conversion system, hydro, inverter, and overall fuzzy logic controller units are developed. Then, a simulation model for the proposed hybrid power system has been developed using MATLAB /Simulink environment. This is done by creating subsystem sets of the major dynamic component models and then assembling into a single aggregate model. The overall power management strategy for coordinating and/or controlling the different energy sources is also presented in the thesis work. Generally there are 800 households with total electric demand of 71.6KW.To satisfy this demand 52%, 35% and 13% is to be contributed from wind/hydro/solar respectively. To use the power economically fuzzy logic controller is used. The controller monitors the demand and the available sources and then switches to the appropriate power supply according to the written rules. Simulations have been carried out to verify the system dynamic performance using a practical load profile and weather data. The result shows that the overall power management strategy is effective and the load demand is balanced. To complete this work, a grid extension from the closest substation has been compared with hybrid system. Cost of the grid extension is estimated based on the data obtained from EEP office. This is done in order to compare the cost of the designed hybrid power system against the cost of grid extension. The result shows that breakeven grid extension distance to be 23.9km which indicates that grid extension is preferable.

Preprint ARTICLE | doi:10.20944/preprints202002.0181.v1

Evaluation of Electrical Efficiency of Photovoltaic Thermal Solar Collector

Mohammad Hossein Ahmadi, Alireza Baghban, Milad Sadeghzadeh, Mohammad Zamen, Amir Mosavi, Shahaboddin Shamshirband, Ravinder Kumar, Mohammad Mohammadi-Khanaposhtani

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: renewable energy; neural networks (NNs); adaptive neuro-fuzzy inference system (ANFIS); least square support vector machine (LSSVM); photovoltaic-thermal (PV/T); hybrid machine learning model

Online: 14 February 2020 (02:53:47 CET)

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Preprint REVIEW | doi:10.20944/preprints202105.0507.v1

PV - Battery Energy Storage Progress in Brazil: A Review

Juliana D'Angela Mariano, Patrícia Monteiro Barbosa de Freitas, Lúcio de Medeiros, Pedro Augusto Biasuz Block, Victor Baiochi Riboldi, Ji Tuo, Jair Urbanetz Junior

Subject: Engineering, Energy And Fuel Technology Keywords: Energy storage system, photovoltaic systems, PV-battery, regulatory issues, energy management.

Online: 21 May 2021 (09:29:36 CEST)

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Preprint REVIEW | doi:10.20944/preprints202108.0152.v1

Plant-Derived Saponins: A Review of Their Surfactant Properties and Applications

Summi Rai, Eliza Acharya, Ananda Kafle, Hari Prasad Devkota, Ajaya Bhattarai

Subject: Biology And Life Sciences, Plant Sciences Keywords: Natural surfactants; plants; saponins; eco-friendly; synthetic surfactants

Online: 6 August 2021 (08:15:01 CEST)

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Preprint REVIEW | doi:10.20944/preprints202005.0295.v1

A Comprehensive Review on the Effect of Plant Metabolites on Coronaviruses: Focusing on Their Molecular Docking Score and IC50 Values

Parastou Farshi, Eda Ceren Kaya, Fataneh Hashempour-Baltork, Kianoush Khosravi-Darani

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: coronaviruses; plants metabolites; polyphenols; antiviral-effect

Online: 18 May 2020 (04:09:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202004.0102.v3

Potential of Plant Bioactive Compounds as SARS-CoV-2 Main Protease (M^pro) and Spike (S) Glycoprotein Inhibitors: A Molecular Docking Study

Trina Ekawati Tallei, Sefren Geiner Tumilaar, Nurdjannah Jane Niode, Fatimawali Fatimawali, Billy Johnson Kepel, Rinaldi Idroes, Yunus Effendi

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Medicinal plants; Mpro; 3CLpro; spike (S) glycoprotein; COVID-19; SARS-CoV-2

Online: 1 July 2020 (08:37:49 CEST)

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Since the outbreak of the COVID-19 (Coronavirus Disease 19) pandemic, researchers have been trying to investigate several active compounds found in plants that have the potential to inhibit the proliferation of SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2). The present study aimed to evaluate bioactive compounds found in plants by using a molecular docking approach to inhibit the Main Protease (M^pro) and Spike (S) glycoprotein of SARS-CoV-2. The evaluation was performed on the docking scores calculated using AutoDock Vina as a docking engine. A rule of five (RO5) was calculated to determine whether a compound meets the criteria as an active drug orally in humans. The determination of the docking score was done by selecting the best conformation of the protein-ligand complex that had the highest affinity (most negative Gibbs' free energy of binding / ΔG). As a comparison, nelfinavir (an antiretroviral drug), chloroquine and hydroxychloroquine sulfate (anti-malarial drugs recommended by the FDA as emergency drugs) were used. The results showed that hesperidin, nabiximols, pectolinarin, epigallocatechin gallate, and rhoifolin had better poses than nelfinavir, chloroquine, and hydroxychloroquine sulfate as spike glycoprotein inhibitors. Hesperidin, rhoifolin, pectolinarin, and nabiximols had about the same pose as nelfinavir, but were better than chloroquine and hydroxychloroquine sulfate as M^pro inhibitors. These plant compounds have the potential to be developed as specific therapeutic agents against COVID-19. Several natural compounds of plants evaluated in this study showed better binding free energy compared to nelfinavir, chloroquine, and hydroxychloroquine sulfate which so far are recommended in the treatment of COVID-19. As judged by the RO5 and previous study by others, the compounds kaempferol, herbacetin, eugenol, and 6-shogaol have good oral bioavailability, so they are also seen as promising candidates for the development lead compounds to treat infections caused by SARS-CoV-2.

Preprint REVIEW | doi:10.20944/preprints201701.0057.v1

Phytomedicine in Joint Disorders

Dorin Dragos, Marilena Gilca, Laura Gaman, Adelina Vlad, Liviu Iosif, Irina Stoian, Olivera Lupescu

Subject: Biology And Life Sciences, Plant Sciences Keywords: osteoarthritis; rheumatoid arthritis; medicinal plants; herbs

Online: 11 January 2017 (07:56:32 CET)

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Preprint REVIEW | doi:10.20944/preprints201910.0216.v1

Antivenin Plants Used for Treatment of Snakebites in Uganda: Ethnobotanical Reports and Pharmacological Evidences

Timothy Omara, Sarah Kagoya, Abraham Openy, Tom Omute, Stephen Ssebulime, Kibet Mohamed Kiplagat, Ocident Bongomin

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: antiophidic; antivenin plants; envenomation; ethnobotany; ethnomedicine; phospholipase A2; snakebite; traditional medicine; Uganda

Online: 18 October 2019 (11:41:08 CEST)

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Snakebite envenomation, cognized as a neglected tropical disease, is a dread public health concern with the most susceptible groups being herdsmen, the elderly, active farmers, hunters, fishers, firewood collectors, 10 to 14-year old working children and individuals with limited access to education and health care. Snakebites are fragmentarily documented in Uganda primarily because most occur in rural settings where traditional therapists end up being the first line defence for treatment. Ethnobotanical surveys in Uganda have unveiled that some plants are used to antagonize the activity of various snake venoms. This review was sought to compile the sporadic information on the vegetal species reported as antivenins in Uganda. Electronic data indicate that no study entirely reported on antivenin plants in Uganda. A total of 77 plant species belonging to 65 genera, distributed among 42 botanical families claimed as antiophidic in Uganda are used for treatment of snakebites. Majority of these species belong to family Fabaceae (30.9%), Euphorbiaceae (14.3%), Asteraceae (11.9%), Amaryllidaceae (9.5%) and Solanaceae (9.5%). The antiophidic species listed are shrubs (40.5%), trees (32.9%) and herbs (17.7%), usually found in the wild and uncultivated. Antivenin extracts are primarily prepared from roots and leaves, through decoctions, infusions, powders and juices and administered orally or topically. The most frequently encountered therapeutically important species are Allium cepa L., Carica papaya L., Securidaca longipedunculata Fres., Harrisonia abyssinica Oliv. and Nicotiana tabacum L. Baseline epidemiological data on snake envenomation and antivenin plants in Uganda remain incomplete due to inadequate research and diverse ethnic groups in the country. There is a dire need to isolate and characterize the bioactive compounds in the claimed plants to enable their adroit utilization in handling the plague of snake envenomation. More baseline data should be collected on snake ecology and human behaviour as well as antivenin plants in Uganda. Indigenous knowledge on the use of plant preparations in traditional medicine in Uganda is humongous, but if this is not quickly researched and appropriately documented, indications as to the usefulness of this vegetal treasure house will be lost in the not so distant future.

Preprint ARTICLE | doi:10.20944/preprints201712.0094.v1

Prediction Model of Photovoltaic Module Temperature for Power Performance of Floating PVs

Waithiru Charles Lawrence K., Jong Rok Lim, Chang Sub Won, Hyung Keun Ahn

Subject: Engineering, Electrical And Electronic Engineering Keywords: Floating PV Systems (FPV); Floating PV Module (FPVM)

Online: 14 December 2017 (12:10:02 CET)

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Rapid reduction in the $/Wp prices of photovoltaic (solar PV) energy has been proceeded recently, resulting in near exponential deployments with an annual capacity of 200 GW expected by 2020. Achieving high efficiency is necessary for many solar manufacturers to break even. In addition, new innovative installation methods are emerging to complement the improvement of system performance. The floating PV (FPV) solar market space has emerged over the past decade as a method for utilizing the cool ambient environment of the FPV system near the water surface to boost the power output performance of the PV module and ultimately the yield of the PV system. PV module temperature, which is the most critical factor affecting efficiency, ultimately governs the effective performance of solar cells, module, and all semiconductor materials in general. We propose the first ever electrical efficiency equations (

η_{c, F P V_{1}}

and

η_{c, F P V_{2}}

) for an FPV module installed on water based on two new predictions of FPV temperature operation models (T_m₁ and T_m₂), whose coefficients are derived from FPV site data with MATLAB. The theoretical prediction of module temperature shows respective errors of 2% and 4% when compared to the FPVM measured data.

Preprint REVIEW | doi:10.20944/preprints202004.0321.v1

Plants as a Prospective Source of Natural Anti-viral Compounds and Oral Vaccines Against COVID-19 Coronavirus

Mahdi Yonesi, Alireza Rezazadeh

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: 2019 Novel Coronavirus; plants; antiviral compounds; plant recombinant vaccines

Online: 19 April 2020 (04:15:18 CEST)

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Preprint REVIEW | doi:10.20944/preprints202012.0761.v1

Cultivation of Medicinal Plants by Smallholder Farmers in South Africa: Constraints to Commercialization

Christopher Nwafor

Subject: Business, Economics And Management, Accounting And Taxation Keywords: conservatio; , biodiversity; medicinal plants; smallholder farmer; strategy

Online: 30 December 2020 (15:26:11 CET)

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South Africa has an abundant heritage of valuable indigenous plants with recognized medicinal value. The reported critical over-harvesting of wild populations is considered an urgent issue for biodiversity conservation. Growing demand for therapeutic products from indigenous medicinal plants have led to increased interest in its cultivation. Cultivation of these indigenous medicinal plants represent a viable option for improving smallholder farmers’ livelihoods, as well as sustaining the availability of these resources for future generations. Serious bottlenecks however exists for subsistent farmers in the cultivation of these valuable plants. It was pertinent to probe whether the cultivation of medicinal plants provide feasible solutions to rural poverty, while effectively conserving threatened indigenous biodiversity. The paper employed a comprehensive review of existing literature to explore relevant issues constraining smallholder farmers from involvement in a potentially lucrative medicinal plants value-chain. Findings indicate challenges such as inadequate domestication of valuable plants species, continued over-harvesting from wild populations, poor knowledge of required agronomic practices, low efficacy perception regarding derivatives from cultivated plants, among a multitude of others. These constraints exists alongside the conservation-oriented strategy driven by international conservation agencies and wholly adopted by the South African government. Recommendations to improve smallholder involvement in the cultivation of medicinal plants include support to research and extension, targeted inducement to smallholders, contracting and off-take agreements, aimed at promoting an alternative poverty-alleviation-focused economic development strategy. The review adds to the conceptual discourse related to plant diversity, resource conservation, poverty alleviation and economic development within the medicinal plants value-chain.

Preprint ARTICLE | doi:10.20944/preprints201801.0292.v1

Compounds from African Medicinal Plants with Activities against Protozoal Diseases: Schistosomiasis, Trypanosomiasis and Leishmaniasis

Conrad V. Simoben, Fidele Ntie-Kang, Sergi H. Akone, Wolfgang Sippl

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: African medicinal plants; Leishmaniasis; natural products; protozoal diseases; Schistosomiasis; Trypanosomiasis

Online: 31 January 2018 (05:28:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0275.v1

Performance analysis of a 48kWp grid-connected photovoltaic plant in the Sahelian climate conditions of Nouakchott, Mauritania

Ahmed Med YAHYA, Abdel Kader Mahmoud, Daha Hassan DAHER, Léon GAILLARD, Christophe MENEZO, Issakha Youm, Adel Mellit

Subject: Engineering, Energy And Fuel Technology Keywords: Grid-connected PV plant, Monitoring, Performance parameters, performance comparison, Mauritania.

Online: 11 February 2021 (10:30:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints201805.0228.v1

Design PV Tracking System According to Efficiency in Function of Orientation

José Ruelas, Benjamin Pusch, Flavio Muños, Juan Delfin, Francisco Javier Ochoa Estrella

Subject: Engineering, Energy And Fuel Technology Keywords: PV solar tracker; design methodology; efficiency function of orientation

Online: 16 May 2018 (09:51:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0085.v1

Evaluation of Factors Governing the Use of Floating Solar System: A Study on Iran's Important Water Infrastructures

Mohammad Fereshtehpour, Reza Javidi Sabbaghian, Ali Farrokhi, Ehsan Bahrami Jovein, Elham Ebrahimi Sarindizaj

Subject: Engineering, Energy And Fuel Technology Keywords: Floating PV system; Sustainable Energy Production; Solar Power Plant; Water Infrastructures; Evaporation; Water Conservation

Online: 5 July 2020 (15:34:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0110.v1

Challenges with Harmonic Compensation at a Remote Bus in Offshore Wind Power Plant

Sanjay Chaudhary, Cristian Lascu, Bakhtyar Hoseinzadeh, Remus Teodorescu, Łukasz Kocewiak, Troels Sørensen

Subject: Engineering, Energy And Fuel Technology Keywords: harmonic distortion; active power filter; resonance; damping; wind power plants

Online: 16 March 2017 (06:56:42 CET)

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Preprint REVIEW | doi:10.20944/preprints201804.0189.v1

Antimalarial Activity of Plant Metabolites

Wen-Hui Pan, Xin-Ya Xu, Ni Shi, Siu Wai Tsang, Hong-Jie Zhang

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: anti-malaria activity; plants; natural products; ethnopharmacology; Plasmodium parasites

Online: 16 April 2018 (05:55:07 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints201611.0144.v1

First Report on the Ethnopharmacological Uses of Medicinal Plants among Monpa Tribe Living in the Zemithang Region of the Arunachal Pradesh, Eastern Himalayas, India

Tamalika Chakraborty, Somidh Saha, Narendra S. Bisht

Subject: Biology And Life Sciences, Plant Sciences Keywords: medicinal plants; traditional knowledge; Himalayas; mountain plants; ethnobotany

Online: 29 November 2016 (06:35:45 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0036.v2

Reliability and Degradation of Solar PV Modules—Case Study of 19-Year Old Polycrystalline Modules in Ghana

David A. Quansah, Muyiwa S. Adaramola, Gabriel Takyi, Isaac A. Edwin

Subject: Engineering, Energy And Fuel Technology Keywords: solar PV; module; degradation; characterization; I-V curve

Online: 10 May 2017 (04:32:43 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0178.v1

Role of Wetland Plants and Use of Ornamental Flowering Plants in Constructed Wetlands for Wastewater Treatment: A Review

Luis Carlos Sandoval-Herazo, Josè Luis Marín-Muñiz, María Graciela Hernández y Orduñas, Antonio Janoary Aleman-Chang

Subject: Biology And Life Sciences, Plant Sciences Keywords: ornamental flowering plants; constructed wetlands; wastewater; pollutants

Online: 9 October 2018 (06:22:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201704.0179.v1

Effects of Hydroalcoholic Extract of Celtis iguanaea on Markers of Cardiovascular Diseases and Glucose Metabolism in Cholesterol-Fed Rats

Barbara Zanchet, Denise B. Gomes, Vanessa S. Corralo, Kriptsan A. P. Diel, Amanda P. Schönell, Caroline Faust, Patrícia Nicola, Liz G. Muller, Ana Paula Zanatta, Silvana M. Wildner, Fernanda Bevilaqua, Rafael Chitolina, Adrieli Sachett, Leila Zanatta, Marta M. M. F. Duarte, Greicy M. M. Conterato, Claudia Q. Rocha, Camile Peretti, Tatiane Brumelhaus, Nayara Souza Alves, Jean Carlo Olivo Menegatt, Fernanda Conte, Guilherme Serena, Adriano Tony Ramos, Francielli Cordeiro Zimermann, Walter A. Roman Junior

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: medicinal plants; flavonoids; hypoglycemic; hypolipidemic; antiatherogenic

Online: 27 April 2017 (04:13:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0308.v1

Carbon Capture and Storage. A Case Study of Mineral Storage of CO₂ in Greece

Kyriaki Kelektsoglou

Subject: Engineering, Control And Systems Engineering Keywords: carbon capture and storage; mineral carbonation; CO2 sequestration; Greek power plants

Online: 15 October 2018 (12:21:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0065.v1

Solar PV Cost Reduction Potential in Japan

Robert Höller, Daniel Gudopp, Tobias Leschinsky

Subject: Engineering, Energy And Fuel Technology Keywords: Solar PV; cost reduction; balance of system; Japan

Online: 5 April 2019 (12:10:13 CEST)

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Working Paper ARTICLE

Plant-derived bioactives and oxidative stress-related disorders: a key trend towards health and longevity promotion

Bahare Salehi, Elena Azzini, Paolo Zucca, Elena Maria Varoni, Nanjangud V. Anil Kumar, Luciana Dini Dini, Elisa Panzarini Panzarini, Jovana Rajkovic, Patrick Valere Tsouh Fokou, Ilaria Peluso, Abhay Prakash Mishra, Manisha Nigam, Youssef El Rayess, Marc El Beyrouthy, William N. Setzer, Letizia Polito, Marcello Iriti, Miquel Martorell, Natália Martins, Leticia M Estevinho, Javad Sharifi-Rad

Subject: Biology And Life Sciences, Plant Sciences Keywords: medicinal plants; bioactive molecules; phenolic compounds; Oxidative stress; Antioxidants; chronic disorders; health maintenance; longevity

Online: 3 June 2019 (09:58:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202108.0264.v1

Proposal Design of a Hybrid Solar PV-Wind-Battery Energy Storage for Standalone DC Microgrid Application

Mwaka Juma, Bakari M. M. Mwinyiwiwa, Consalva J. Msigwa, Aviti T. Mushi

Subject: Engineering, Electrical And Electronic Engineering Keywords: solar photovoltaic (PV); wind turbine coupled to permanent synchronous generator (WT-PMSG); battery energy storage (BESS); maximum power point tracking (MPPT); DC/DC converters

Online: 11 August 2021 (15:10:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201806.0324.v1

Evaluating the Impacts of Ground and Atmospheric Conditions on the Efficiency of Solar Energy System and Its Economic Analysis

Ali Saleh Aziz, Mohammad Faridun Naim Tajuddin, Sanjeevikumar Padmanaban, Lucian Mihet-Popa, Mohd Rafi Adzman, Makbul A. M. Ramli

Subject: Engineering, Electrical And Electronic Engineering Keywords: Renewable Energy; solar energy; PV panels slope; azimuth; temperature; albedo

Online: 20 June 2018 (14:22:44 CEST)

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The There are many factors influencing the performance of photovoltaic (PV) systems. Among these factors, temperature and solar radiation are two major parameters that have a large effect on the efficiency of PV systems. The cell temperature of PV panels is related to the ambient temperature while the solar radiation incident on the surface of the PV modules depends on the slope and azimuth of these modules. Furthermore, ground reflectance (albedo) affects the irradiance incident on the PV panel surface, which in turn affects the output of a PV system. Nevertheless, the effects of these factors on the economic performance of the solar PV systems are scarcely reported. This paper presents a complete design of a stand-alone PV/battery system to supply electric power for a mobile base station in Choman, Erbil, Iraq. The effects of different factors on the total electricity produced by PV arrays and its economic performance are simultaneously investigated. HOMER software has been used as a tool for the techno-economic and environmental analysis. As indicated from the simulation results, the PV array capacity and its economic performance are highly affected by the variation of the slope and azimuth. With a base case (albedo of 20% and average annual ambient temperature of 11°C), the best feasible system which is achieved by facing PV due to south with a tilt angle of 40° or 45°, is found to have net present cost (NPC) of 70595 $ and cost of energy (COE) of 0.54 $/kWh. Moreover, the results indicate that increasing the ground reflectance from 10% to 90% results in a 7.2% decrease in the PV array capacity and about 3% decrease in the NPC and COE. On the other hand, increasing the ambient temperature from 0°C to 40°C results in a 19.7% increase in the PV array capacity and an 8.2% increase in the NPC and COE. Furthermore, according to the ambient temperature of Choman, using PV modules with high sensitivity to temperature is found to be an attractive option. Provided simulation performance analysis proves that the studied parameters must be treated well to establish an enabling environment for solar energy development in Iraq.

Preprint REVIEW | doi:10.20944/preprints202001.0191.v1

Synthetic Apomixis an Old Enigma to Preserve Hybrid Vigor

Sajid Fiaz, Xiukang Wang, Rizwana Maqbool, Habib Ali, Shakeel Ahmad, Adeel Riaz, Badr Alharthi

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: hybrid vigor; flowering plants; apomixis; CRISPR/Cas9

Online: 17 January 2020 (10:30:45 CET)

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The hybrid seeds of several important crops with supreme qualities, including yield, biotic and abiotic stress tolerance, have been cultivated from decades. Thus far, a major challenge with hybrid seed, it does not hold ability to produce plants with same qualities over subsequent generations. Apomixis exist naturally an asexual mode of reproduction in flowering plants via avoiding meiosis and ultimately leads to seed production. Apomixis possess potential to preserve hybrid vigor for multiple generations for economically important plant genotypes. The evolution and genetics of asexual seed production is unclear and need much more efforts to find its genetic architecture. To fix hybrid vigor synthetic apomixis has been suggested an alternative. The development of MiMe (Mitosis instead of Meiosis) genotypes are utilized further for clonal gametes production. However, the identification and parental origin of genes responsible for synthetic apomixis are less known and need further understanding. Genome modifications utilizing genome editing technologies (GETs) like clustered regularly interspaced short palindromic repeats (CRISPR)/CRISPR-associated protein 9 (cas9) a reverse genetics tool has paved way to utilize emerging technologies in plant molecular biology. From the last decade, several genes in important crops have been successfully edited. The vast availability of GETs has made the functional genomics studies easy to conduct in crops important for food security. The disruption of expression of genes specific to egg cell MATRILINEAL (MTL) or BABY BOOM1 (BBM1) through CRISPR/Cas genome editing system can promote haploid plants. The establishment of synthetic apomixis by engineering MiMe genotype by genome editing BBM1 expression or disruption of MTL leads toward clonal seed production. In present review, we discussed the current development in plants by utilizing CRISPR/Cas9 technology and its possibility of promoting apomixis in crops to preserve hybrid vigour. In addition to this, genetics, evolution, epigenetic modifications and strategy for MiMe genotype development has been discussed in detail.

Preprint REVIEW | doi:10.20944/preprints201811.0272.v1

Detergent Plants of Northern Thailand: Potential Sources of Natural Saponins

Jiratchaya Wisetkomolmat, Pongsakorn Suppakittpaisarn, Sarana Rose Sommano

Subject: Biology And Life Sciences, Plant Sciences Keywords: saponin-containing plants; cleansing plants; bio-surfactant

Online: 12 November 2018 (09:07:26 CET)

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Preprint REVIEW | doi:10.20944/preprints202102.0380.v1

Green Synthesis of Transition Metals Nanoparticle and Their Oxides: A Review

Sean Drummer, Tafirenyika Nyamayaro Madzimbamuto, Mahabubur Chowdhury

Subject: Chemistry And Materials Science, Biomaterials Keywords: nanoparticle; transition-metal; transition-metal oxides; plants; green synthesis; factors

Online: 17 February 2021 (10:49:49 CET)

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Preprint REVIEW | doi:10.20944/preprints202207.0355.v1

Thin-Layer Chromatography (TLC) in Screening of Botanicals – its Versatile Potential and Selected Applications

Teresa Kowalska, Mieczysław Sajewicz

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: TLC screening of plants; TLC screening of psychoactive plants; TLC-direct bioautography; effect directed detection; chemotaxonomy of plants; quality control of medicinal plants; quality control of alimentary products; quality control of cosmetic products

Online: 25 July 2022 (07:50:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201707.0029.v1

An Improved System for Utilizing Low-temperature Waste Heat of Flue Gas from Coal-Fired Power Plants

Shengwei Huang, Chengzhou Li, Tianyu Tan, Peng Fu, Gang Xu, Yongping Yang

Subject: Engineering, Energy And Fuel Technology Keywords: coal-fired power plants; waste heat utilization; thermodynamic analysis; exergy analysis; techno-economic analysis

Online: 12 July 2017 (15:18:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201909.0202.v1

Improvements in Electric Power Potential Generation from Plants Microbial Fuel Cells

Melisa Acosta-Coll, Adalberto Ospino-Castro, Stalin Carbonell-Navarro, Jaider Escobar-Duque, Rafael Peña-Gallardo

Subject: Engineering, Energy And Fuel Technology Keywords: Plants-Microbial Fuel Cells; clean energy; electric potential; power output; resistivity

Online: 18 September 2019 (08:21:05 CEST)

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Preprint REVIEW | doi:10.20944/preprints201812.0156.v1

The Report of Marine Life Genomic Research

Guangyi Fan, Jianwei Chen, Tao Jin, Chengcheng Shi, Xiao Du, He Zhang, Yaolei Zhang, Hanbo Li, Ting Luo, Pengxu Yan, Guang Liu, Xiangqun Chi, Xiaoxuan Tan, Liangwei Li, Guilin Liu, Xiaochuan Liu, Shijie Hao, Kai Han, Xiaoyun Huang, Shuai Sun, Jing Zhou, Mengjun Yu, Lingfeng Meng, Yue Chang, Rui Zhang, Kaiqiang Liu, Mengqi Zhang, Yong Zhao, Chang Li, Jiao Guo, Xinyu Guo, Jiahao Wang, Meiqi Lv, Haoyang Gao, Yujie Liu, Yue Song, Shengjun Wang, Yang Deng, Binjie Ouyang, Jinzhong Lin, Yingjia Yu, lynn Fink, Xianwei Yang, Xun Xu, Xin Liu

Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: Marine microorganisms, marine fungi, algae, marine plants, marine invertebrates, marine vertebrates, genome, metagenome

Online: 12 December 2018 (15:44:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0060.v1

Adaptive Grouping Distributed Compressive Sensing Reconstruction of Plant Hyperspectral Data

Ping Xu, Junfeng Liu, Lingyun Xue, Jingcheng Zhang, Bo Qiu

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: hyperspectral image; spectral characteristics of plants; spectral adaptive grouping; compressive sensing

Online: 8 May 2017 (11:45:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0344.v1

Vitamin D Content of Australian Native Food Plants and Australian-Grown Edible Seaweed

Laura J. Hughes, Lucinda J. Black, Jill L. Sherriff, Eleanor Dunlop, Norbert Strobel, Robyn M. Lucas, Janet F. Bornman

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: LC-QQQ; liquid chromatography; triple quadrupole; vitamin D; 25(OH)D; plants; algae

Online: 24 May 2018 (09:27:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0169.v1

Operation and Control of a PV-Wind Hybrid System under Various Weather and Loading Conditions

Mostafa S. Fathy, Hilmy Awad, Hosam Hegarzy, Elwy E. Elkholy

Subject: Engineering, Control And Systems Engineering Keywords: photovoltaic (PV),; maximum power point tracking (MPPT); doubly-fed induction generator (DFIG)

Online: 26 November 2017 (13:35:23 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0087.v1

Development of a GIS Tool for a High Precision PV Degradation Monitoring and Supervision: Feasibility Analysis in Large and Small PV Plants

Miguel De Simón-Martín, Ana-María Diez-Suárez, Laura Álvarez-de Prado, Alberto González-Martínez, Álvaro De La Puente-Gil, Jorge Blanes-Peiró

Subject: Engineering, Energy And Fuel Technology Keywords: photovoltaics; PV plants; PV faults; Geographic Information System; PV supervision and maintenance

Online: 10 May 2017 (04:24:13 CEST)

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It is well known that working PV plants show several maintenance needs due to wiring and modules degradation, mismatches, dust and PV cells defects and faults. There are a wide range of studies that show the theoretical and some laboratory tests of how these circumstances may affect the PV production. Thus, it results mandatory to evaluate the whole PV plant performance and, then, it’s payback time, profitability and environmental impact or carbon footprint. However, very few studies include a systematic procedure to quantify and supervise the real degradation effects and faults impacts on the field. In this paper, the authors first conduct a brief review of the most frequent PV faults and degradation that can be found on real conditions operative PV Plants. Then, they propose and develop an innovative Geographic Information System application to locate and supervise them. The designed tool has been applied to either a large PV plant of 108 kWp and a small PV plant of just 9 kWp installed on a home rooftop. For the large PV plant, 24 strings of PV modules have been modelized and introduced into the GIS application and every module in the power plant has been studied including voltage, current, power, series and parallel resistance, fill factor, normalized PV curve to STC, thermography and visual analysis. For the small PV installation 3 strings of PV panels have been studied identically. It must be noticed that PV modules in this case include power optimizers. The precision of the study allows the researchers to locate and supervise up to a third part of every PV cell in the system, which are adequately georreferenciated. The developed tool allows both the researchers and the investors to increase control on the PV plant performance and conducts to a better planification of maintenance actuations and to evaluate several PV modules replacement strategies in a preventive maintenance programme. Found PV faults include hot spots, snail tracks, EVA discoloration, PV cells fractures, busbars discoloration, bubbles and Si discoloration.

Preprint ARTICLE | doi:10.20944/preprints201712.0040.v1

A Novel High Accuracy PV Cell Model Including Selfheating and Parameter Variation

Aurel Gontean, Septimiu Lica, Szilard Bularka, Roland Szabo, Dan Lascu

Subject: Engineering, Energy And Fuel Technology Keywords: PV cell; model; simulation; SPICE; selfheating; parameters variation

Online: 7 December 2017 (06:59:39 CET)

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Preprint REVIEW | doi:10.20944/preprints201711.0195.v2

Phytotherapy in the Management of Diabetes: A Review

Paolo Governa, Giulia Baini, Vittoria Borgonetti, Giulia Cettolin, Daniela Giachetti, Anna Rosa Magnano, Elisabetta Miraldi, Marco Biagi

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: phytotherapy; hyperglycemia; diabetes; medicinal plants

Online: 31 December 2017 (03:36:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0041.v1

Hybrid PV-Wind Micro-Grid Development Using Quasi-Z-Source Inverter Modeling and Control –Experimental Investigation

Neeraj Priyadarshi, Sanjeevikumar Padmanaban, Dan M. Ionel, Lucian Mihet-Popa, Farooque Azam

Subject: Engineering, Electrical And Electronic Engineering Keywords: PV; MPRVS; quasi Z-source inverter; MPP; SEPIC converter

Online: 4 June 2018 (12:19:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0014.v2

Photovoltaic Cell and Module I-V Characteristic Approximation Using Bézier Curves

Roland Szabo, Aurel Gontean

Subject: Engineering, Energy And Fuel Technology Keywords: PV cell; I-V characteristic; model; simulation; interpolation; Bézier curve; control points; least squares fitting method

Online: 23 March 2018 (16:15:01 CET)

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Preprint ARTICLE | doi:10.20944/preprints202112.0481.v1

Machine Learning Schemes for Anomaly Detection in Solar Power Plants

Mariam Ibrahim, Ahmad Alsheikh, Feras M. Awaysheh, Mohammad Dahman Alshehri

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: anomaly detection; machine learning; comparison analysis; renewable energy; Solar Power plants

Online: 30 December 2021 (11:51:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0454.v1

Contribution of the Wild Food Plants in the Food System of Tribal Belt of Pakistan; The Pak - Afghan Border Region

Shujaul Mulk Khan, Abdullah Abdullah

Subject: Biology And Life Sciences, Plant Sciences Keywords: gastronomy; livelihood; public healthcare; traditional knowledge; wild food plants; tribal belt

Online: 19 September 2020 (10:05:21 CEST)

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Preprint REVIEW | doi:10.20944/preprints201805.0218.v1

List of todo of R&D and International Standardization for Realizing that most of the EVs Run by the Solar Energy

Kenji Araki, Liang Ji, George Kelley, Masafumi Yamaguchi

Subject: Engineering, Energy And Fuel Technology Keywords: photovoltaic; standardization; EV; PHV; car-roof; flexible PV; performance modeling; rating

Online: 15 May 2018 (13:20:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0194.v1

Aromatic Plants: Antioxidant Capacity and Polyphenol Characterisation

Charalampos Proestos, Theo Varzakas

Subject: Chemistry And Materials Science, Food Chemistry Keywords: aromatic plants; HPLC; antioxidant capacity; DPPH; Rancimat test

Online: 27 March 2017 (09:57:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0231.v1

Dispersion of Particulate Matter and Sulphur Oxides from Thermal Power Plant: A Case Study

Jayant Singh, R. Srikanth, Sheela K. Ramasesha

Subject: Engineering, Energy And Fuel Technology Keywords: Coal-fired Thermal Plants; CFD modelling; Pollution; Particulate matter; Sulphur dioxide

Online: 11 July 2020 (08:42:34 CEST)

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Working Paper REVIEW

Tissue Fibrosis, Aging and the Potential Use of Cannabinoids as Anti-Fibrotic Agents

Nazar Pryimak, Mariia Zaiachuk, Olga Kovalchuk, Igor Kovalchuk

Subject: Biology And Life Sciences, Plant Sciences Keywords: fibrosis; medicinal plants; Cannabis sativa; cannabinoids; anti-fibrotic

Online: 22 October 2020 (12:41:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0244.v1

Evolutionary History of the GH3 Family Based on 48 Sequenced Plants and Identification of Jasmonic Acid-Relate GH3 Genes in Solanum tuberosum

Chao Zhang, Leilei Zhang, Dongdong Wang, Haoli Ma, Bailin Liu, Zheng Shi, Xiaohui Ma, Yue Chen, Qin Chen

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: GH3 family; sequencing plants; potato; jasmonic acids; tissues; biotic

Online: 17 May 2018 (12:01:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0413.v1

Floristic Study of Karnaphuli Range in Kaptai Reserve Forest, Rangamati, Bangladesh

Md. RIshad Abdullah, AKM Golam Sarwar, Md. Ashrafuzzaman, Md. Mustafizur Rahman

Subject: Biology And Life Sciences, Forestry Keywords: flora; vascular plants; reserve forest; threatened plants; Kaptai

Online: 18 September 2020 (03:58:13 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0463.v1

Recycling Prospects for Saponite-Containing Water at Diamond Processing Plants in Arkhangelsk Region, Russia

Valentine A. Chanturiya, Vladimir G. Minenko, Dmitriy V. Makarov, Olga V. Suvorova, Ekaterina A. Selivanova

Subject: Engineering, Chemical Engineering Keywords: saponite-containing waters; diamond processing plants; cryogenic treatment; electrochemical separation; saponite product applications

Online: 22 October 2018 (04:34:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0354.v1

Multiple Fault Location in a Photovoltaic Array Using Bidirectional Hetero-Associative Memory Network in Micro-distribution Systems

Long-Yi Chang, Neng-Sheng Pai, Min-Hung Chou, Jian-Liung Chen, Chao-Lin Kuo, Chia-Hung Lin

Subject: Engineering, Energy And Fuel Technology Keywords: Rooftop Photovoltaic (PV) System, Maximum Power Point Tracking (MPPT), Power Degradation Index, Bidirectional Hetero-Associative Memory Network (BHAM).

Online: 24 May 2018 (16:27:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0522.v1

In Silico Phylogenetic and Structural Analysis of Plant Damps

Athanasia pavlopoulou, Ezgi Karaca, Alma Balestrazzi, Alexandros Georgakilas

Subject: Biology And Life Sciences, Plant Sciences Keywords: DAMPs; alarmins; innate immune response; plants; phylogeny; in silico

Online: 26 July 2018 (16:08:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0102.v1

Assessment of the Host Range of Fall Armyworm Spodoptera frugiperda Smith (Lepidoptera: Noctuidae) in Manica Province, Mozambique

Albasini Caniço, António Mexia, Luisa Santos

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: invasive species; Noctuidae; host plants; polyphagous insects; host-strain; pest management

Online: 5 January 2021 (17:12:12 CET)

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Preprint SHORT NOTE | doi:10.20944/preprints202011.0556.v1

Resilience Against the Covid-19 Pandemic among Indigenous Kichwa Communities in Ecuadorian Amazonia

Anders Sirén, Michael Uzendoski, Tod Swanson, Iván Jácome-Negrete, Emil Sirén-Gualinga, Andrés Tapia, Alex Dahua-Machoa, Aymé Tanguila, Eugenia Santi, Dionicio Machoa, Dixon Andi, Daniel Santi

Subject: Biology And Life Sciences, Plant Sciences Keywords: Covid-19; indigenous people; Amazon; medicinal plants; vulnerability; resilience

Online: 22 November 2020 (11:40:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0052.v1

Dynamic Optimization of a Subcritical Steam Power Plant under Time-Varying Power Load

Chen Chen, George M. Bollas

Subject: Engineering, Control And Systems Engineering Keywords: power plants; supervisory control; dynamic simulation; dynamic optimization

Online: 5 June 2018 (08:13:42 CEST)

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Preprint REVIEW | doi:10.20944/preprints201911.0367.v1

Nor-Lignans: Occurrence in Plants and Biological Activities - A Review

Claudio Frezza, Alessandro Venditti, Chiara Toniolo, Daniela De Vita, Marco Franceschin, Antonio Ventrone, Lamberto Tomassini, Sebastiano Foddai, Marcella Guiso, Marcello Nicoletti, Mauro Serafini, Armandodoriano Bianco

Subject: Biology And Life Sciences, Plant Sciences Keywords: nor-lignans; occurrence in plants; biological activities

Online: 29 November 2019 (03:27:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0344.v1

Optimal Operation of Conventional Power Generation with High Penetration of Renewable Energy using Equilibrium Optimizer Technique

Lina Alhmoud, Khaled Nusair

Subject: Engineering, Electrical And Electronic Engineering Keywords: active power loss; total generation cost; emission index; optimal power flow; equilibrium optimizer; 21 solar PV integrated IEEE 30-bus system; wind integrated IEEE 30-bus system; hybrid wind and solar PV 22 integrated IEEE 30-bus system

Online: 16 September 2020 (03:50:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0351.v1

Polypodium vulgare L.: Polyphenolic Profile, Cytotoxicity and Cytoprotective Properties in Different Cell Lines

Adrià Farràs, Víctor López, Filippo Maggi, Giovani Caprioli, M.P. Vinardell, Montserrat Mitjans

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: cytoprotection; cytotoxicity; ferns; oxidative stress; Polypodiaceae; Polypodium vulgare L.; medicinal plants

Online: 14 May 2021 (16:03:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201806.0098.v1

Effect of Reflector Geometry in the Annual Received Radiation of Low Concentration Photovoltaic Systems

João Paulo N. Torres, Carlos A. F. Fernandes, João Gomes, Bonfiglio Luc, Carine Giovinazzo, Olle Olsson, P. J. Costa Branco

Subject: Engineering, Energy And Fuel Technology Keywords: C -PV solar systems, MaReCo, ray-tracing, reflector design, Soltrace.

Online: 6 June 2018 (14:15:35 CEST)

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Preprint TECHNICAL NOTE | doi:10.3390/sci2020030

On Singular Perturbation of Neutron Point Kinetics in the Dynamic Model of a PWR Nuclear Power Plant

Xiangyi Chen, Asok Ray

Subject: Physical Sciences, Applied Physics Keywords: PWR nuclear power plants; point kinetics; singular perturbation

Online: 26 April 2020 (00:00:00 CEST)

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Preprint REVIEW | doi:10.20944/preprints202103.0277.v1

CRISPR/Cas9 Trends and Future Scheme for Genome Engineering in Plants

Niroj Paudel, Suhyong Park, Yoonah Jang, Sherzod Nigmatullayevich Rajametov

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: CRISPR/Cas9; Disease resistance; Future perspective; Improvement of plants; Molecular scissor; Revolution

Online: 10 March 2021 (11:10:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0155.v1

The Energy, Economic and Environmental Efficiency of a PV Installation Cooperating with a Heat Pumpin the Central Part of Europe. Case study

Sylwia Wciślik, Dagmara Kotrys-Działak

Subject: Engineering, Energy And Fuel Technology Keywords: environmental efficiency; energy; economic; PV installation; modernization; economic analysis; ecological effect,

Online: 3 November 2020 (14:13:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints201905.0033.v1

Machine Learning Prediction Models of Electrical Efficiency of Photovoltaic-Thermal Collectors

Mohammad Hossein Ahmadi, Alireza Baghban, Ely Salwana, Milad Sadeghzadeh, Mohammad Zamen, Shahab Shamshirband, Ravinder Kumar

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: PV/T collector; electrical efficiency; renewable energy; intelligent models; optimization; machine learning; multilayer perceptron (MLP), artificial neural network (ANN); adaptive neuro-fuzzy inference system (ANFIS); least squares support vector machine (LSSVM); photovoltaic-thermal (PV/T)

Online: 6 May 2019 (08:10:59 CEST)

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Preprint REVIEW | doi:10.20944/preprints202010.0639.v1

Polyamines-A Positive Modulator against Biotic and Abiotic Stresses on Plants: Review of Current Knowledge

Md Al-Amin Milon, Mst. lutfa Khatun, Md Azizul Islam

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Plants; polyamines; abiotic stresses; biotic stresses; transgenic plants; Plant-pathogen interaction; Plants-fungal interaction

Online: 30 October 2020 (13:10:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0432.v1

Floristic Study of Karnaphuli Range in Kaptai Reserve Forest, Rangamati, Bangladesh

Md. RIshad Abdullah, AKM Golam Sarwar, Md. Ashrafuzzaman, Md. Mustafizur Rahman

Subject: Biology And Life Sciences, Forestry Keywords: Flora; Vascular plants; Reserve forest; Threatened plants; Kaptai

Online: 18 September 2020 (11:22:12 CEST)

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Preprint REVIEW | doi:10.20944/preprints202102.0455.v1

Pistacia lentiscus: From Phytopharmacology to Scientific Explanations on Its Anti-Inflammatory and Antimicrobial Capacity

Egle Milia, Simonetta Bullitta, Giorgio Mastandrea, Barbora Szotáková, Aurelie Schoubben, Lenka Langhansova, Marina Quartu, Antonella Bortone, Sigrun Eick

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: essential oils; water extracts; ethanol extracts; periodontal bacteria; Candida; natural antimicrobials; natural anti-inflammatory; Sardinian plants; pharmaceutical plants

Online: 22 February 2021 (10:53:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0249.v1

Chemical Analysis of the Main Metabolites of Three Spontaneous Plants From the Saharan Area (Algeria)

Imène RADJAI

Subject: Biology And Life Sciences, Anatomy And Physiology Keywords: spontaneous plants; metabolites; insecticidal; identification; quantification

Online: 10 February 2021 (10:12:15 CET)

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Preprint REVIEW | doi:10.20944/preprints202104.0776.v1

Saponins in Cancer Treatment: Current Progress and Future Prospects

Olushola Olalekan Elekofehinti, Opeyemi Iwaloye, Femi Olawale, Esther Opeyemi Ariyo

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: Saponins; anticancer activities; traditional plants; mechanism of action; cell cycle arrest; apoptosis; chemopreventive; future cancer research

Online: 29 April 2021 (14:08:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202207.0340.v1

Antioxidant Properties of Sesamum indicum Seeds using Different Solvents

Blessed Agbemade, Theophilus Fadjare Frempong, And Mercy Badu

Subject: Chemistry And Materials Science, Food Chemistry Keywords: dietary plants; medicinal plants; extraction; solvent; phytoconstituents; antioxidants; anti-nutrients; radical scavenging

Online: 22 July 2022 (13:16:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202001.0018.v2

Measurement and Modeling of the 3-D Solar Irradiance for Vehicle-Integrated Photovoltaic

Kenji Araki, Yasuyuki Ota, Masafumi Yamaguchi

Subject: Engineering, Energy And Fuel Technology Keywords: photovoltaic; EV; PHV; standardization; car-roof; flexible PV; performance modeling; rating

Online: 15 January 2020 (07:19:23 CET)

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Preprint REVIEW | doi:10.20944/preprints202304.1165.v1

Encapsulant Materials and Their Adoption in Photovoltaic Modules: A Brief Review

Nadka Tz. Dintcheva, Elisabetta Morici, Claudio Colletti

Subject: Engineering, Chemical Engineering Keywords: PV modules; encapsulant materials; cost-performance balance; cells preservation

Online: 28 April 2023 (10:38:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0593.v1

An Overview of PV Technology by Analyzing Various MPPT Algorithms, Suitable Converters, Stability & Their Cost Estimation.

RONAKBHAI ARVINDBHAI RANA, JISHNU DAS, GURU RAGHAVAENDRA, HEE-JE KIM

Subject: Engineering, Electrical And Electronic Engineering Keywords: Solar Photovoltaic (PV); MPPT; DC-DC Converter; DC-AC Converter; Stability of Photovoltaic system; Filter

Online: 26 November 2018 (11:51:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0110.v1

Reciprocal Heterospecific Pollen Interference among Alien and Native Species

Eva M. Malecore, Sylvie Berthelot, Mark van Kleunen, Mialy Razanajatovo

Subject: Biology And Life Sciences, Plant Sciences Keywords: invasion ecology; biotic resistance; exotic plants; heterospecific pollen; reproductive interference; alien plants; indirect plant-plant interactions; Darwin's naturalization hypothesis

Online: 9 February 2020 (16:32:53 CET)

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Preprint REVIEW | doi:10.20944/preprints202107.0614.v1

Mixed Effects and Mechanisms of Cannabinoids for Triple-Negative Breast Cancer Treatment

Khanh Tran

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: Triple-negative breast cancer; cannabinoid; marijuana; cell signalling; medicinal plants

Online: 28 July 2021 (08:56:32 CEST)

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Triple-negative breast cancer (TNBC) is a subtype of breast cancer characterized by the lack of estrogen receptors (ER), progesterone receptors, and HER-2 receptors. Thus, TNBC tumours do not benefit from the current therapies targeting ER or HER-2. Therefore, there is an urgent need to develop novel treatment for this subtype of breast cancer. Marijuana is a common name given to Cannabis plants, a group of plants in the Cannabis genus of the Cannabaceae family. Cannabis plants are among the oldest cultivated crops, traced back at least 12,000 years and are well known for their multi-purpose usage, including medicinal purposes. The main active compounds extracted from Cannabis plants are 21-carbon-containing terpenophenolics, which are referred to as phytocannabinoids. Of these, the tetrahydrocannabinol (THC) group contains highly potent cannabinoids, including delta-9-tetrahydrocannabinol (∆9-THC) and delta-8-tetrahydrocannabinol (∆8-THC), which are the most abundant THCs and are largely responsible for psychological and physiological effects of marijuana. The use of Cannabis plants for medicinal purposes was first recorded in 2337 BC in China, where Cannabis plants were used to treat pains, rheumatism, and gout. Recently, several cannabinoids have been approved for a number of treatments, one of which is the treatment of nausea and vomiting caused by chemotherapy in cancer patients. Furthermore, increasing evidence shows that cannabinoids not only attenuate side effects due to cancer treatment, but might also potentially possess direct antitumor effects in several cancer types, including breast cancer. However, anti-tumour activity of marijuana has been variable in different studies and even promoted tumour growth in some cases. In addition, the mechanisms of cannabinoid action in cancer remain unclear. This review summarizes evidence about the mixed actions of cannabinoids in cancer in general and triple-negative breast cancer in particular.

Preprint ARTICLE | doi:10.20944/preprints202306.1734.v1

Environmental Impact of Pv Power Systems

Mladen Bošnjaković, Robert Santa, Zoran Crnac, Tomislav Bošnjaković

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: PV power systems; environmental impact; land use; CO2 emission

Online: 26 June 2023 (04:26:48 CEST)

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In response to the problem of increasing climate change and energy security, investment in renewable energy sources has increased significantly both in Europe and globally. Wind and solar power plants are expected to be the largest contributors to global decarbonization, ranking first and second in projected capacity by 2050. Since all power plants have some impact on the environment, this also applies to photovoltaic power plants. Because of the large capacities projected for PV installed capacity, their environmental impacts should be evaluated. The environmental impacts of PV power plants change over time. Improving the manufacturing technology of PV system components, increasing the efficiency of solar cells, and using materials that are less harmful to the environment will reduce these impacts. Manufacturing PV system components is a highly energy-intensive process that involves greenhouse gas emissions. As new renewable energy capacity is built, the amount of "green" electricity on the grid increases, reducing CO2 emissions per kWh consumed. The objective of this paper is to analyze the current status of the environmental impact of PV power plants under these changing conditions in terms of CO2 emissions, land use, pollutant and noise emissions, and water consumption. The capacity installed to date will reach the end of its lifetime by 2050, which means that the amount of waste associated with it will increase over time. This can have a significant impact on the environment, which is why part of the work is dedicated to this problem. In addition to the available information from the literature, in the part related to land use, the authors also made their own estimates based on data on newly installed PV power plants and PV modules available on the market. The results of the analysis show that there is enough land both in Europe and worldwide to install the planned capacities of rooftop and ground-mounted PV power plants. CO2 emissions are at the same level as for concentrated solar power, with a decreasing trend. Pollutant emissions, noise and water consumption are not a major problem compared to other types of power plants. Overall, it can be concluded that the expansion of PV capacity has a very positive impact on the environment.

Preprint ARTICLE | doi:10.20944/preprints201810.0236.v1

Antimicrobial Efficiency of Essential Oils from Traditional Medicinal Plants of Asir Region, Saudi Arabia over Drug Resistant Isolates

Ismail M. Helal, Ashraf El-Bessoumy, Erwah Al-Bataineh, Martin R.P. Joseph, Parassena Rajagopalan, Harish C. Chandramoorthy, Sami Ben Hadj Ahmed

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: essential oils; drug resistant microorganisms; antimicrobial activity; antifungal activity; medicinal plants

Online: 11 October 2018 (11:51:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0368.v1

Microgrid as a Cost-Effective Alternative for Rural Network Underground Cabling for Adequate Reliability

Sanna Uski, Erkka Rinne, Janne Sarsama

Subject: Engineering, Electrical And Electronic Engineering Keywords: battery energy storage system (BESS); PV; micro CHP; microgrid; islanded operation; distribution network; network outage; reliability; underground cable

Online: 25 May 2018 (12:06:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0219.v1

Energy Analysis and Exergy Optimization of Photovoltaic-Thermal Collector

Sonja Kallio, Monica Siroux

Subject: Engineering, Energy And Fuel Technology Keywords: solar energy; micro-cogeneration; exergy; multi-objective optimization; PVT collector; PV panel

Online: 10 September 2020 (04:42:24 CEST)

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Working Paper ARTICLE

A Method for Calculation of a Hydro Resource Price Using the Operational Features of a Hydropower Plant

Yury Anatoljevich Sekretarev, Tatyana Vladimirovna Myateg, Olga S. Sergeevna Atamanova

Subject: Engineering, Energy And Fuel Technology Keywords: hydropower plants, optimization, hydro resource price, incremental water rate characteristic, electricity market, complex criteria of ecological-and-economic efficiency.

Online: 15 June 2021 (11:35:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0456.v1

Hybrid Off-Grid Energy Systems Optimal Sizing with Integrated Hydrogen Storage Based on Deterministic Balance Approach

Alaa Selim, Mohemed Elshimy, Ghada Amer, Ilham Ihoume, Hasan Masrur, Josep M. Guerrero

Subject: Engineering, Energy And Fuel Technology Keywords: Energy Systems; Hybrid; off-grid; Solar PV; Wind turbines; Hydrogen system; Sizing optimization; Deterministic approach

Online: 8 May 2023 (05:31:31 CEST)

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Integrating numerous renewable resources has been extensively researched and studied to create a dependable energy system. This study investigated the best techno-economical hybrid energy system configuration while using hydrogen energy to keep the system's energy balanced. Additionally, this study aims to determine the best hybrid system configuration for the location under investigation. A novel technique of DBM (Deterministic Balanced Method) was introduced to determine the total annual energy output for the project's lifetime. This approach is used to contrast the outcomes of other HOMER software tools. Then, using HOMER, it is possible to confirm the sizing optimization results for the suggested method by comparing the power ratings and yearly energy output. A detailed comparison between our proposed method and HOMER Pro has been conducted for validation and verification. Our method has been rigorously tested in various hybrid off-grid energy systems, ensuring its applicability and reliability across different scenarios and configurations. The results of our study indicate a high degree of similarity between the proposed approach and HOMER pro for computing annual energy power for the studied energy systems. Specifically, our analysis revealed that the difference between the approaches was within a range of 5%, indicating a high level of consistency and reliability in our method. These findings suggest that our approach can be confidently applied to determine the appropriate size of hybrid energy systems accurately. Overall, our study provides valuable insights into the development of effective sizing methodologies for hybrid energy systems. After considering the amount of solar radiation and wind speed gathered by global weather data platforms like NASA and METEONORM, this paper has also included a real case study of the Cairo International Airport's hybrid renewable energy production systems. To guarantee the viability of this study, the system design was founded on an actual load that was researched and simulated. A cluster of distributed networks was finally proposed to use the excess energy and enable energy conversion processes to be used in industry and transportation applications.

Preprint ARTICLE | doi:10.20944/preprints201905.0043.v1

Changes in Medicinal Plant Knowledge among the Waorani Society, Ecuador

Holger Weckmüller, Carles Barriocanal, Roser Maneja, Martí Boada

Subject: Environmental And Earth Sciences, Environmental Science Keywords: ethnobotany; traditional ecological knowledge; Waorani; indigenous communities; Ecuadorian Amazon; medicinal plants; loss of knowledge; globalization; global change; acculturation; socio-cultural changes

Online: 6 May 2019 (08:59:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201904.0156.v1

In Vitro Ruminal Fermentation and Methane Production of PUFA-Containing Rations as Treated by Flavonoid and Essential Oil from Piper betle L.

Rayudika Aprilia Patindra Purba, Pramote Paengkoum, Chalermpon Yuangklang

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: quercetin; eugenol; organic compounds; rumen; environment; HPLC-DAD; polyphenols-containing plants

Online: 13 April 2019 (05:23:35 CEST)

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Preprint REVIEW | doi:10.20944/preprints202301.0462.v1

Plant-based Bone Grafting: The Future of Bone Healing

Camila Silva de Morais Pinheiro, Alcina Vieira De Carvalho Neta, Vicente Ferrer Pinheiro Neto, Claudia Quintino da Rocha Oliveira, Rachel Melo Ribeiro, Antônio Carlos Romão Borges, Marilene Oliveira da Rocha Borges

Subject: Medicine And Pharmacology, Veterinary Medicine Keywords: Bone healing; , bone fracture; bone graft; herbal medicine; osteogenesis; plants

Online: 26 January 2023 (02:58:19 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0694.v1

Modeling of Stochastic Temperature and Heat Stress directly underneath Agrivoltaic conditions with Orthosiphon Stamineus Crops Cultivation

Noor Fadzlinda Othman, Mohammad Effendy Yaacob, Ahmad Suhaizi Mat Su, Juju Nakasha Jaafar, Hashim Hizam, Mohd Fairuz Shahidan, Ahmad Hakiim Jamaluddin, Guangnan Chen, Adam Jalaludin

Subject: Engineering, Energy And Fuel Technology Keywords: Transpiration; PV Heat Conversion; Plant Heat Stress; Agrivoltaic system; Sustainable Integration; Thermal Analysis

Online: 29 July 2020 (11:20:25 CEST)

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This paper shares some new information on the ambient temperature profile and the heat stress occurrences directly underneath ground-mounted Solar Photovoltaic (PV) Arrays (monocrystalline-based) focusing on different temperature levels. A common ground for this work lies on the fact that 10C increase of PV cell temperature results in reduction of 0.5% energy conversion efficiency thus any means of natural cooling mechanism would gain much benefit especially to the Solar Farm operators. Transpiration process plays an important role in the cooling of green plants where in average it could dissipate around 32.9% of the total solar energy absorbed by the leaf making it a good natural cooling mechanism. This condition is relatively applied for herbs specifically for this project, Orthosiphon Stamineus or generally known as Java Tea are used as the high value crops. The thermal process via convective heat and mass exchange of leaves with the environment is relevant for a better understanding of plant physiological processes in response to environmental conversion factors for a wide range of applications. An important fact for plant heat stress with respect to the Ambient temperature is that the range lies between 10 C to 15 C above the surrounding value. This heat stress condition is relatively important and should be modelled in crops-energy integration. Agrivoltaic concept is a system that combines commercial agriculture and photovoltaic electricity generation in the same space. The concept is in line with the Kyoto Protocol and the United Nation Sustainable Development Goals (UN-SDG) which highlights the clean energy and sustainable urban living. The integration of agrivoltaic systems would optimize the yield, improving clean system efficiency and solving the issue of land resource sustainability. The PV bottom surface temperature are the main source of dissipated heat as shown in the thermal images recorded at 5 minutes interval at 3 sampling time. Statistical analysis shows that the Thermal correlations for transpiration process and heat stress occurrences between PV bottom surface and plant height will be an important finding for large scale plant cultivation in agrivoltaic farms.

Preprint ARTICLE | doi:10.20944/preprints202109.0367.v1

Enabling Year-round Cultivation in the Nordics - Agrivoltaics and Adaptive LED Lighting Control of Daily Light Integral

Marco Hernandez Velasco

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: daily light integral (DLI) maps; LED grow lights; greenhouse integrated PV; adaptive lighting control; year-round cultivation; agrivoltaics

Online: 21 September 2021 (14:31:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202008.0005.v1

Interactions between Phytophthora cactorum, Armillaria gallica and Betula pendula Seedlings Subjected to Defoliation

Justyna Anna Nowakowska, Marcin Stocki, Natalia Stocka, Sławomir Ślusarski, Miłosz Tkaczyk, João Maria Caetano, Mirela Tulik, Tom Hsiang, Tomasz Oszako

Subject: Biology And Life Sciences, Forestry Keywords: birch; chlorophyll; leaves’ damage; plants’ pathogens; roots; secondary metabolites

Online: 2 August 2020 (08:47:32 CEST)

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Working Paper ARTICLE

Exploring the Benefits of Photovoltaic Non-Optimal Orientations in Buildings

Esteban Sánchez, Ángel José Ordóñez, Alberto Sánchez, Raúl García Ovejero, Javier Parra-Domínguez

Subject: Engineering, Energy And Fuel Technology Keywords: Solar Photovoltaics, PV Self-consumption, Building-integrated photovoltaics (BIPV), Build-ing-applied photovoltaics (BAPV), PV orientations, PV Grid-integration

Online: 22 September 2021 (10:14:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0313.v1

Community Empowerment Model for Forest Revegetation and Preservation the Area Around the Springs: Arjuna Mount Case Study in East Java, Indonesia

Matheus Nugroho, Soemarno Soemarno, Harsuko Riniwati, Aminudin Afandhi

Subject: Environmental And Earth Sciences, Environmental Science Keywords: community empowerment; springs; forest revegetation; Arjuna mount; soil and geographical conditions; plants vegetation profile

Online: 29 August 2019 (17:17:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0181.v1

Comparative Plastomics of Ashwagandha (Withania, Solanaceae) and Identification of Mutational Hotspots for Barcoding Medicinal Plants

Furrukh Mehmood, Abdullah ., Zartasha Ubaid, Yiming Bao, Peter Poczai, Bushra Mirza

Subject: Biology And Life Sciences, Plant Sciences Keywords: Ashwagandha; Chloroplast Genome; InDels; Medicinal plants; Mutational hotspots; Phylogenomics; Solanaceae; Substitutions; Withania

Online: 11 March 2020 (10:21:56 CET)

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Preprint REVIEW | doi:10.20944/preprints202008.0379.v2

Cell Communications among Microorganisms, Plants, and Animals: Origin, Evolution and Interplays

Yves COMBARNOUS, Thi Mong Diep NGUYEN

Subject: Biology And Life Sciences, Cell And Developmental Biology Keywords: hormone; quorum sensing; receptor; bacteria; fungi; metazoa; plants; microbiota; evolution

Online: 25 September 2020 (10:40:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0515.v1

Solar PV Frequency Control in the U.S. EI and ERCOT Interconnections — Case Studies and Recommendations

Shutang You

Subject: Engineering, Energy And Fuel Technology Keywords: PV; frequency control; droop; inertia; grid standards

Online: 26 October 2020 (11:13:04 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0232.v1

A Simple Method for Acquisition and Inoculation of Brassica Yellows Virus from Transgenic Plants and Frozen Infected Leaves by Aphids

Deng-Pan Zuo, Xiang-Ru Chen, Ru-Jian Hu, Tian-Yu Zhao, Xiao-Yan Zhang, Yan-Mei Peng, Ying Wang, Da-Wei Li, Cheng-Gui Han

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: Brassica yellows virus (BrYV); Myzus persicae; transgenic plants with BrYV full length genome; frozen BrYV infected plants; acquisition and transmission

Online: 10 August 2020 (03:34:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0373.v1

Optimal Operation of Conventional Power Generation with High Penetration of Renewable Energy using Equilibrium Optimizer Technique

Khaled Nusair, Lina Alhmoud

Subject: Engineering, Electrical And Electronic Engineering Keywords: active power loss; total generation cost; emission index; optimal power flow; equilibrium optimizer; solar PV integrated IEEE 30-bus system; wind integrated IEEE 30-bus system; hybrid wind and solar PV integrated IEEE 30-bus system

Online: 17 September 2020 (05:15:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0632.v1

Fault Prediction and Early-Detection in PV Power Plants based on Self-Organizing Maps

Alessandro Betti, Mauro Tucci, Emanuele Crisostomi, Antonio Piazzi, Sami Barmada, Dimitri Thomopulos

Subject: Engineering, Electrical And Electronic Engineering Keywords: PV plants; Self-Organizing Maps; Fault Prediction; Inverter Module; Key Performance Indicator; Lost Production

Online: 29 January 2021 (15:42:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0228.v1

Fallopia Japonica and Prunella Vulgaris Inhibit Myopia Progression by Suppressing Akt and NFκB Mediated Inflammatory Reactions

Chia-Hung Lin, Chih-Sheng Chen, Yao-Chien Wang, En-Shyh Lin, Ching-Yao Chang, Jamie Jiin-Yi Chen, Ming-Yen Wu, Hui-Ju Lin, Lei Wan

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Myopia; monocular form deprivation (MFD); inflammation; Fallopia Japonica (FJ); Prunella Vulgaris (PV)

Online: 9 July 2021 (15:21:52 CEST)

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Preprint REVIEW | doi:10.20944/preprints202004.0083.v1

Strengthening the Practical Application of Experiments Assessing Maize Drought Tolerance

Qinbin Zhang, Wei Wang

Subject: Biology And Life Sciences, Plant Sciences Keywords: drought-tolerance characteristics; maize breeding; maize drought tolerance; molecular markers; phenotype; screening of drought-tolerant plants

Online: 7 April 2020 (10:28:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202208.0414.v1

Ethnobotany in Iturbide, Nuevo León: The Traditional Knowledge on Plants Used in the Semiarid Mountains of Northeastern Mexico

Eduardo Estrada-Castillón, José Ángel Villarreal-Quintanilla, Luis Gerardo Cuéllar-Rodríguez, Martí March-Salas, Juan Antonio Encina-Domínguez, Wibke Himmeslbach, María Magdalena Salinas-Rodríguez, Jacqueline Guerra, Mauricio Cotera-Correa, Laura Magdalena Scott-Morales, Rebecca Jane Friesen, Patricio Garza-Zambrano, José Ramón Arévalo-Sierra, Homero Garate-Escamilla, Maritza Gutiérrez-Gutiérrez, Tania Vianney Gutiérrez-Santillán

Subject: Biology And Life Sciences, Plant Sciences Keywords: ethnobotanical indices; ethnobotanical uses; native and exotic species; local community; semi-structured interviews; natural resources in mountains areas; traditional knowledge and manage-ment; ornamental plants

Online: 24 August 2022 (05:51:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0585.v1

Ocean Thermal Energy Conversion – Flexible Enabling Technology for Variable Renewable Energy Integration in the Caribbean

R. J. Brecha, Katherine Schoenenberger, Masaō Ashtine, Randy Koon Koon

Subject: Engineering, Automotive Engineering Keywords: Ocean thermal energy conversion; OTEC; seawater air conditioning; SWAC; desalination; variable renewable energy; wind power; solar PV; 100% renewable energy; Caribbean

Online: 25 February 2021 (13:49:31 CET)

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