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Preprint ARTICLE | doi:10.20944/preprints201810.0629.v1

Multiscale Hydro-Meteorological Factors Variations and Its Links to Large-Scale Atmospheric Circulation Systems in the Source Region of Yangtze River

Jian Tang, Hui-Qun Cao

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: hydro-meteorological factors; large-scale atmospheric circulation systems; South Asia monsoon; streamflows; source region of the Yangtze River

Online: 26 October 2018 (11:52:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1641.v1

Assessment of the Coupled WRF-Hydro Model on Streamflow Simulations over the Source Region of the Yellow River

Yaling Chen, Jun Wen, Xianhong Meng, Qiang Zhang, Xiaoyue Li, Ge Zhang, Run Chen

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: the Source Region of the Yellow River; WRF-Hydro; the atmosphere-land-hydrology coupling processes; streamflow

Online: 28 February 2024 (13:50:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202207.0092.v1

Distribution, Assessment, and Source of Heavy Metals in Sediments of the Qinjiang River, China

Shuncun Zhang, Bo Chen, Junru Du, Tao Wang, Haixin Shi, Feng Wang

Subject: Social Sciences, Behavior Sciences Keywords: Heavy metals; Risk assessment; Source analysis; Surface sediment; Qinjiang River

Online: 6 July 2022 (08:57:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0535.v1

Source Contributions to Ozone Formation in the New South Wales Greater Metropolitan Region, Australia

Hiep Nguyen Duc, Lisa T.-C. Chang, Toan Trieu, David Salter, Yvonne Scorgie

Subject: Environmental And Earth Sciences, Environmental Science Keywords: ozone; greater metropolitan region of Sydney; source contribution; source attribution; air quality model; Cubic Conformal Atmospheric Model (CCAM); Chemical Transport Model (CTM)

Online: 27 September 2018 (06:17:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0086.v1

Preconditioning of Spatial and Auditory Cues: Roles of the Hippocampus, Frontal Cortex, and Cue-directed Attention

Andrew Talk, Katrina Grasby, Tim Rawson, Jane Ebejer

Subject: Social Sciences, Behavior Sciences Keywords: sensory preconditioning; source memory; spatial learning; episodic memory

Online: 16 December 2016 (08:28:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1375.v1

Feedback Beamforming in the Time Domain

Zvi Aharon Herscovici, Israel Cohen

Subject: Engineering, Electrical And Electronic Engineering Keywords: Beamforming; time domain processing; source localization; uniform linear array

Online: 23 February 2024 (11:03:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints201808.0415.v1

Long-term of River Water Quality and Pollution Source Apportionment in Taiwan

Marsha Savira Agatha Putri, Chao-Hsun Lou, Mat Syai'in, Shang-Hsin Ou, Yu-Chun Wang

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Taiwan rivers; water quality; multivariate statistical analysis; river pollution index; pollution source apportionment

Online: 23 August 2018 (11:54:51 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202404.1276.v1

Improved Evaluation of Seedling Cultivation Efficiency in Coconut Coir Substrate through the Addition of Diverse Nutrient Sources

Zheng Liu, Xinyu Liu, Liqun Ge

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: coconut coir; seedling substrate; cucumber; rice; nutrient source

Online: 18 April 2024 (15:03:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0096.v1

Successes of Restoration and Its Effect on the Fish Community in a Freshwater Tidal Embayment of the Potomac River, USA

Kim De Mutsert, Amanda Sills, C. J. Carroll Schlick, R. Christian Jones

Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: fish assemblages; community dynamics; alternate stable states; eutrophication; submerged aquatic vegetation; nutrient load reduction; point-source pollution

Online: 11 May 2017 (07:54:59 CEST)

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Preprint REVIEW | doi:10.20944/preprints202402.0784.v1

A Review of 3-D Printing Batteries

Maryam Mottaghi, Joshua M. Pearce

Subject: Engineering, Energy And Fuel Technology Keywords: 3-D printing; Additive Manufacturing; Batteries; Electricity; Energy; Energy storage; Open source; Open source hardware

Online: 14 February 2024 (09:44:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints201702.0055.v1

Addressing Energy System Modelling Challenges: The Contribution of the Open Energy Modelling Framework (oemof)

Simon Hilpert, Stephan Günther, Cord Kaldemeyer, Uwe Krien, Guido Plessmann, Frauke Wiese, Clemens Wingenbach

Subject: Engineering, Energy And Fuel Technology Keywords: open source; energy system modelling; energy system optimization

Online: 15 February 2017 (11:20:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0082.v1

Comparative Physicochemical and Microbiological Qualities of Source and Stored Household Waters in Some Selected Communities in Southwestern Nigeria

Mary A. Bisi-Johnson, Kehinde A. Adediran, Saheed A. Akinola, Elizabeth O. Popoola, Anthony I. Okoh

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: water; physical; chemical; microbiological; quality; household; stored; source

Online: 14 March 2017 (10:49:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints201901.0171.v1

Identification of Critical Source Areas (CSAs) and Evaluation of Best Management Practices (BMPs) in Controlling Eutrophication in Dez River Basin

Hadi Babaei, Mohammad Nazari-Sharabian, Moses Karakouzian, Sajjad Ahmad

Subject: Environmental And Earth Sciences, Environmental Science Keywords: best management practices; critical source areas; SWAT; SWAT-CUP; SUFI-2; dez river basin

Online: 17 January 2019 (03:10:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints201910.0173.v1

A Population Census of Large Herbivores Based on UAV and Its Effects on Grazing Pressure in the Yellow-River-Source National Park, China

Fan Yang, Quanqin Shao, Zhigang Jiang

Subject: Biology And Life Sciences, Animal Science, Veterinary Science And Zoology Keywords: UAV remote sensing; large wild herbivore populations; grazing pressure; functional zones; Yellow-River-Source National Park

Online: 16 October 2019 (04:30:27 CEST)

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Using the Yellow-River-Source National Park (YRSNP) as a study site, an unmanned aerial vehicle (UAV) remote sensing and line transect method was used to investigate the number of wild herbivorous animals and livestock, including the kiang (Equus kiang) and Tibetan gazelle (Procapra picticaudata). A downscaling algorithm was used to generate the forage yield data in YRSNP based on 30 m spatial resolution. On this basis, we estimated the forage–livestock balance, which included both wild animals and livestock, and analyzed the effects of functional zone planning in national parks on the forage–livestock balance in YRSNP. The results showed that the estimates of large herbivore population numbers in YRSNP based on population density in the aerial sample strips, which were compared and validated with statistical data and warm season survey results, indicated that the number of kiangs and Tibetan gazelles in the 2017 cold season was 12900 and 12100, respectively. The number of domestic yaks, Tibetan sheep, and horses was 53400, 76800, and 800, respectively, and the total number of sheep units was 353200. The ratio of the number of large wild herbivores and livestock sheep units was 1:5; Large wild herbivores have different preferences for functional zones, preferring ecological restoration areas consisting mainly of degraded grassland; The grazing pressure indices of the core reserve areas and ecological restoration areas were 0.168 and 0.276, respectively, indicating that these two regions still have high grazing potential. However, the grazing pressure index of the traditional utilization areas was 1.754, indicating that these grasslands are severely overloaded; After the planning and implementation of functional zones, the grazing pressure index of YRSNP was 1.967. Under this measure, the number of livestock was not reduced and the grazing pressure nearly doubled, indicating that forage–livestock conflict has become more severe.

Preprint ARTICLE | doi:10.20944/preprints202403.0977.v1

The Wave Equation for the Moving Source and the Moving Receiver

Hrvoje Dodig

Subject: Physical Sciences, Mathematical Physics Keywords: Standard wave equation; Wave propagation; Moving receiver; Moving source

Online: 18 March 2024 (10:08:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.0599.v1

Long-Term and seasonal changes in Emission Sources of Atmospheric Particulate-Bound Pyrene and 1-Nitropyrene in Selected Four Cities in the Western Pacific

Kazuichi Hayakawa

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Western Pacific; vehicle; coal combustion; source contribution; pyrene; 1-nitropyrene

Online: 9 April 2024 (07:46:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0294.v1

Threats of Contamination of Drinking Water Sources and Preventive Enhancement of Protection Efforts of these Sources in the Case Study of the Czech Republic

Štěpán Kavan, Šárka Kročová, Milan Axman

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: aquatic ecosystem; drinking water source; water supply system; contamination of drinking water sources; risks definition; risk analysis methods; threat elimination; pollution

Online: 6 March 2024 (11:01:11 CET)

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Preprint REVIEW | doi:10.20944/preprints202302.0281.v1

A Review on the Use of Open Source Technologies and Soft-Ware Applied to Precision Agriculture Practices

Rogério P. dos Santos, Nuno Fachada, Marko Beko, Valderi Reis Quietinho Leithardt

Subject: Computer Science And Mathematics, Software Keywords: precision agriculture; open source software; open source technologies

Online: 16 February 2023 (09:11:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints201702.0057.v2

Global Existence, Asymptotic Behavior and Blow-up of Solutions for a Suspension Bridge Equation with Nonlinear Damping and Source Terms

Wenjun Liu, Hefeng Zhuang

Subject: Computer Science And Mathematics, Analysis Keywords: suspension bridges; fourth order wave equation; nonlinear damping; source term; existence; blow up

Online: 24 February 2017 (09:06:57 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.1169.v1

Low Cost Source Measure Unit (SMU) to Characterize Sensors Built on Graphene-Channel Field-Effect Transistors

Ashley Morgan Galanti, Mark Haidekker

Subject: Engineering, Electrical And Electronic Engineering Keywords: source meter unit (SMU); graphene-channel field effect transistor (G-FET); light sensing

Online: 19 March 2024 (16:29:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202310.0381.v1

FPGA-Based Hardware Implementation of a Stable Inverse Source Problem Algorithm in a Non-homogeneous Circular Region

José Jacobo Oliveros Oliveros, José Rubén Conde Sánchez, Carlos Arturo Hernández Gracidas, María Monserrat Morín Castillo, José Julio Conde Mones

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: Field-Programmable Gate Arrays (FPGAs); unrolling architectures; inverse source problem; Ill-posed problems; Tikhonov regularization; elliptic boundary problems; operational equations; Hilbert spaces.

Online: 9 October 2023 (06:21:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.1127.v1

Generating Renewable Energy Based on the Circuit Approach

Shinichi Ishiguri

Subject: Physical Sciences, Applied Physics Keywords: voltage source; current source; super-condenser; renewable energy; electric power

Online: 15 June 2023 (11:05:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202404.0101.v1

Research on Sound Source Localisation Method for UAV Detection Based on Improved EMD

Tao CHEN, Jiyan YU, Zhengpeng YANG

Subject: Engineering, Mechanical Engineering Keywords: sound source localisation; EMD dynamic modal decomposition method; signal processing; feature extraction; Chan-Taylor algorithm

Online: 1 April 2024 (14:46:43 CEST)

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Abstract In order to solve the problem that it is difficult to obtain the accurate trigger signal moment when using the time difference of UAV flight acoustic signals collected by acoustic sensors arranged in advance to locate the position of UAVs when they cannot be tracked by radar and are difficult to be observed by the human eye, an acoustic source localisation method with improved empirical modal decomposition (REMD) under an adaptive frequency window is proposed. Firstly, the collected UAV flight signals are smoothed and filtered, then the robust empirical modal decomposition (REMD) is used for IMF modal decomposition and spectral analysis of the collected signals, and a panning frequency window with variable bandwidth is introduced for corresponding frequency locking and extracting the IMFs; the GWO optimisation is used and the sliding metrics are set to determine the position of the panning frequency window automatically; finally, the extracted Finally, the extracted IMF components are reconstructed according to the criterion, and the trigger signal moments in the reconstructed IMF components are resolved and recorded, and the algorithm is used to calculate the difference between the reception moments of different sensors; for the traditional sound source localisation algorithms with a small detection range, which are prone to fall into the no-solution or false-solution, i.e., unable to achieve the localisation, a weighted least-squares-based Chan-Taylor algorithm is proposed for the localisation computation, and a weighted least-squares algorithm is proposed for the localisation computation, through the Inputting the sensor delay parameter and solving the linear equation system to get the target position information; finally, this paper verifies the robustness and performance of the design method with simulated and actual signals. The results show that the maximum positioning error is no more than 5% in an area with a side length of 15m in the measurement area. With the improved accuracy of time delay estimation, the positioning simulation results meet the positioning requirements even though the positioning error is further expanded when the measurement area is further expanded.

Preprint ARTICLE | doi:10.20944/preprints201802.0009.v1

On the Performance of the Cache Coding Protocol

Behnaz Maboudi, Hadi Sehat, Peyman Pahlevani, Daniel E. Lucani

Subject: Computer Science And Mathematics, Computer Networks And Communications Keywords: Cache Coding, Source Coding, Absorbing Markov Chain

Online: 1 February 2018 (16:45:19 CET)

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Preprint LETTER | doi:10.20944/preprints201607.0042.v1

Power Conservative Thevenin-Norton and Norton-Thevenin Transformations

Hervé Barthélemy

Subject: Engineering, Electrical And Electronic Engineering Keywords: Thevenin; Norton; voltage source; current source

Online: 15 July 2016 (11:46:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0114.v1

Performance Evaluation of the Physical and Combustion Properties of Briquettes Produced from Agro-Wastes and Wood Residues

Babajide Charles Falemara, Victoria Ibukun Joshua, Oluwaseyi Oluwafunmi Aina, Rivi David Nuhu

Subject: Chemistry And Materials Science, Biomaterials Keywords: biomass; briquette; combustion; density; energy source

Online: 6 July 2018 (09:48:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1372.v1

Formal Assessment of Agreement and Similarity between an Open-Source and a Reference Industrial Device, with an Application to a Low-Cost pH Logger

Evmorfia P. Bataka, Persefoni Maletsika, Christos T. Nakas

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: open-source logger; open-source software; agreement; similarity; pH

Online: 19 December 2023 (09:38:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1024.v1

Robotic Odor Source Localization via Vision and Olfaction Fusion Navigation Algorithm

Sunzid Hassan, Lingxiao Wang, Khan Raqib Mahmud

Subject: Computer Science And Mathematics, Robotics Keywords: Odor source localization; moth-inspired algorithm; computer Vision-based Navigation; robot operating system; multi-modal robotics

Online: 19 February 2024 (08:21:50 CET)

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Preprint ARTICLE | doi:10.20944/preprints202403.0844.v1

Web Application for Retrieval-Augmented Generation: Implementation and Testing

Irina Radeva, Ivan Popchev, Lyubka Doukovska, Miroslava Dimitrova

Subject: Computer Science And Mathematics, Software Keywords: Retrieval-augmented generation (RAG); open-source large language models (LLMs); 30 Antelope blockchain; IPFS; Ollama; LangChain; smart agriculture

Online: 15 March 2024 (14:38:51 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0570.v1

White Mold on Pea Caused by Sclerotinia sclerotiorum: A New Threat for Pea Cultivation in Bangladesh

Md. Rabiul Islam, Ananya Prova, Md. Tanbir Rubayet, Md. Mahidul Islam Masum, Md. Motaher Hossain

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: apothecium; ascospores; sclerotium formation; carbon source; fungicides; resistance source

Online: 26 August 2020 (09:01:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0272.v1

In Lab Demonstration of an Underwater Acoustic Spiral Source

Ruben Viegas, Friedrich Zabel, Antonio Silva

Subject: Engineering, Electrical And Electronic Engineering Keywords: spiral source; underwater acoustics; bearing angle estimate; spiral source calibration; underwater localization

Online: 12 April 2023 (11:49:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202302.0056.v1

Untangling the Complexities of Processing and Analysis for Untargeted LC-MS Data Using Open-source Tools

Εlizabeth J. Parker, Kathryn C. Billane, Nichola Austen, Anne Cotton, Rachel M. George, David Hopkins, Janice A. Lake, James K. Pitman, James N. Prout, Heather J. Walker, Alex Williams, Duncan D. Cameron

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: metabolomics; untargeted; mass-spectrometry; open-source; bioinformatics

Online: 3 February 2023 (04:16:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints202402.1214.v1

Exploring UFMC Waveform for Last Meter Connectivity in 6G: A Street Lighting-Driven Approach with Enhanced Simulator for IoT Application Dimensioning

Véronique Georlette, Anne-Carole Honfonga, Michel Dossou, Véronique Moeyaert

Subject: Engineering, Telecommunications Keywords: Visible Light Communication (VLC); 6G; IoT Applications; Smart Cities; Wireless Communication; Last Meter Connectivity; Open-Source Simulator; Application Dimensioning; Outdoor VLC Communication; Efficient Lighting LEDs

Online: 21 February 2024 (14:57:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints202108.0370.v1

The Carbon Source Controls the Secretion and Yield of Polysaccharide-Hydrolyzing Enzymes of Basidiomycetes

Eka Metreveli, Tamar Khardziani, Vladimir Elisashvili

Subject: Biology And Life Sciences, Immunology And Microbiology Keywords: wood-rotting basidiomycetes; carbon source; cellulases; regulation of synthesis; saccharification

Online: 18 August 2021 (07:41:08 CEST)

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Preprint REVIEW | doi:10.20944/preprints202003.0362.v1

Leveraging Open Hardware to Alleviate the Burden of COVID-19 on Global Health Systems

Andre Maia Chagas, Jennifer Molloy, Lucia Prieto Godino, Tom Baden

Subject: Biology And Life Sciences, Virology Keywords: Free and Open Source Hardware; COVID-19; pandemic

Online: 24 March 2020 (14:46:29 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0043.v1

Composition, Sources of PM_2.5 Saccharides and Its Characteristics during the Haze Episode in Shanghai

Mengxin Xiao, Qiongzhen Wang, Xiaofei Qin, Guangyuan Yu, Congrui Deng

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: saccharides; biomass burning; haze; source apportionment; bio-aerosol

Online: 4 June 2018 (12:47:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.2056.v1

Mathematical Estimation of Indigenous Proline as a Bioindicator to Regulate the Stress of Trivalent Chromium on Rice Plants Grown in Different Nitrogenous Conditions

Cheng-Zhi Li, Yu-Xi Feng, Peng Tian, Xiao-Zhang Yu

Subject: Biology And Life Sciences, Toxicology Keywords: proline; rice; trivalent chromium; nitrogen source; mass balance

Online: 30 August 2023 (10:11:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0552.v1

Epidemic Evolution: Source, Lock-down and Removal Modifications to the SIR Model

Ian Lerche

Subject: Medicine And Pharmacology, Medicine And Pharmacology Keywords: modified SIR model, epidemic, death and source.

Online: 24 February 2021 (15:59:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints202309.2165.v2

Enhancing Security of BB84 Quantum key Distribution Protocol against Detector Blinding Attacks by Use of an Active Quantuam Entropy Source in the Receiving Station

Mario Stipčević

Subject: Physical Sciences, Quantum Science And Technology Keywords: entropy source; quantum cryptography; quantum hacking; quantum communication

Online: 2 November 2023 (08:04:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202404.0797.v1

The Effect of Climate Change on Organic Honey Efficiency in Türkiye via Machine Learning

Ayca Nur Sahin Demirel

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: Climate Change; Organic Beekeeping; Sustainable Agriculture; Natural Source Management

Online: 11 April 2024 (11:30:33 CEST)

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Preprint REVIEW | doi:10.20944/preprints202105.0352.v1

The Field Guide to 3D Printing in Microscopy

Mario Del Rosario, Hannah S. Heil, Afonso Mendes, Vittorio Saggiomo, Ricardo Henriques

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: 3d printing; microscopy; open-source; optics; super-resolution

Online: 14 May 2021 (16:10:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.0136.v1

The Relationship Between PM2.5 and Health Vulnerability in Argentina

Manuela Bullo, Gabriela Lakkis, Martin Pustilnik, Juan Ignacio Bonfiglio, Ricardo Di Pasquale, Luciana Marisol Gonzalez, Gabriela Gonzalez-Aleman, Maria Cristina Lamas, Agustin Salvia, Martín Langsam, Tomás Olego, Valentín Starosta, And Santiago Perez-Lloret

Subject: Environmental And Earth Sciences, Pollution Keywords: PM2.5; health vulnerability; air quality; map; public source

Online: 3 May 2023 (10:47:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1013.v1

A Study on the Measuring Methods of Websites Security Risk Rate

Yong joon Lee

Subject: Computer Science And Mathematics, Security Systems Keywords: energy website risk,; Website Security Measurements; OSINT(Open Source Intelligence),

Online: 15 September 2023 (04:22:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1475.v1

Chemical Characteristics and Mechanisms of Nitrate Contamination of Groundwater in Valley Cities in Arid Areas

Linde Liang, Lizhong Zhang, Changli Liu, Jixiang Zhu, Dun Wang

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: hydrochemical characteristics; nitrate; source; valley city

Online: 24 October 2023 (08:42:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202403.0146.v1

Provenance Variation in Seed and Fruit Pod Traits of Multipurpose Wonder Forest Tree Siris (Albizzia lebbek) in Northern India and Relationships with Bioclimatic Factors

Om P. Rajora, Abdul Bari Muneera Parveen, Modhumita Ghosh Dasgupta

Subject: Biology And Life Sciences, Forestry Keywords: Indian siris; morphological diversity; seed source variation; geographical variation; geocoordinates; ecotypic variation; seed germination; inter-traits correlation; inter-provenance differentiation; genetic resource conservation, sustainable management and improvement

Online: 4 March 2024 (10:57:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints202010.0390.v1

Modified Cascaded Z-Source High Step-Up Boost Converter

Navid Salehi, Herminio Martinez-Garcia, Guillermo Velasco-Quesada

Subject: Engineering, Electrical And Electronic Engineering Keywords: High step-up converter; Impedance source converter; Z-source converter; Cascaded technique

Online: 19 October 2020 (14:54:47 CEST)

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Working Paper REVIEW

Overview of HVDC Technology

Neville Watson

Subject: Engineering, Electrical And Electronic Engineering Keywords: High Voltage Direct Current transmission (HVDC); Multi-terminal HVDC; Voltage Source Converter (CSC); Voltage Source Converter (VSC)

Online: 19 July 2020 (20:28:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1681.v1

Modular Open-Source Design of Pyrolysis Reactor Monitoring and Control Electronics

Finn K. Hafting, Daniel Kulas, Etienne Michels, Sarvada Chipkar, Stefan Wisniewski, David Shonnard, Joshua M. Pearce

Subject: Engineering, Electrical And Electronic Engineering Keywords: open hardware; open source hardware; open source electronics; automation; Arduino; automation; pyrolysis; data acquisition; controls; monitoring

Online: 26 October 2023 (10:16:54 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201910.0232.v1

Satellite Retrieval of Downwelling Shortwave Surface Flux and Diffuse Fraction under All Sky Conditions in the Framework of the LSA SAF Program (Part 1: Methodology)

Dominique Carrer, Xavier Ceamanos, Suman Moparthy, Chloe Vincent, Sandra C. Freitas, Isabel Trigo

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: solar radiation; diffuse; LSA SAF; aerosols; MSG SEVIRI; open source code

Online: 20 October 2019 (02:24:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0470.v1

Open-Sourced Remote Sensing Data Management with the Irish Earth Observation (IEO) Python Module

Guy Serbin, Stuart Green

Subject: Environmental And Earth Sciences, Environmental Science Keywords: remote sensing; python; data management; landsat; open-source

Online: 31 May 2018 (11:12:27 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202004.0274.v1

The Parthenogenerator: Energy out of Thin Air

Teddy Manning, Max Gotts

Subject: Engineering, Energy And Fuel Technology Keywords: electrical generator; steam-power; air/ground-source heat pump; ambient temperature; parthenogenerator

Online: 16 April 2020 (13:00:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0543.v1

An Efficient Multistage Approach for Blind Source Separation of Noisy Convolutive Speech Mixture

Junaid Khan, Tariqullah Jan, Ruhul Khalil, Nasir Saeed, Muhannad Almutiry

Subject: Engineering, Electrical And Electronic Engineering Keywords: Blind Source Separation (BSS), Minimum Mean Square Error (MMSE), convolutive mixture, source Prior, generalized Gaussian distribution

Online: 24 May 2021 (08:50:37 CEST)

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Working Paper ARTICLE

Exploiting Linguistic Knowledge for Low-Resource Neural Machine Translation

Yirong Pan, Xiao Li, Yating Yang, Rui Dong

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: linguistic knowledge; source language; neural machine translation (NMT); low-resource; multi-source NMT

Online: 2 March 2020 (15:28:34 CET)

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Preprint REVIEW | doi:10.20944/preprints202208.0434.v1

The Unprecedented Role of 3D Printing Technology in Fighting the Covid-19 Pandemic: A Comprehensive Review

Y.C. Niranjan, S.G. Channabasavanna, Shankar Krishnapillai, Velmurugan R, A. Rajesh Kannan, Dhanesh G. Mohan, Sasan Sattarpanah Karganroudi

Subject: Engineering, Mechanical Engineering Keywords: COVID-19; 3D Printing; Additive Manufacturing; Medical Applications; Open-source files; Innovation

Online: 25 August 2022 (10:24:14 CEST)

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Preprint REVIEW | doi:10.20944/preprints202110.0300.v1

A Review of the Conceptualization and Operational Management of Seaport Microgrids on the Shore and Seaside

Nur Najihah Abu Bakar, Josep M. Guerrero, Juan C.Vasquez, Najmeh Bazmohammadi, Yun Yu, Abdullah Abusorrah, Yusuf A. Al-Turki

Subject: Engineering, Marine Engineering Keywords: cold ironing; electrification; operation management; renewable energy source; seaport microgrids; shipboard microgrid; maritime

Online: 21 October 2021 (07:34:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0004.v1

Blood Meal Sources of Anopheles spp. in Malaria Endemic Areas of Honduras

Denis Escobar, Krisnaya Ascencio, Andrés Ortiz, Adalid Palma, Ana Sánchez, Gustavo Fontecha

Subject: Biology And Life Sciences, Insect Science Keywords: Blood Meal Source; Malaria; Honduras; Plasmodium spp

Online: 2 July 2020 (12:52:53 CEST)

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Preprint REVIEW | doi:10.20944/preprints202004.0054.v1

Distributed Manufacturing of Open-Source Medical Hardware for Pandemics

Joshua Pearce

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: pandemic; influenza pandemic; open source; open hardware; COVID-19; COVID-19 pandemic; medical hardware; open source medicine

Online: 6 April 2020 (12:38:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202311.0416.v1

Study of the Nearby Source Based on Cosmic Ray Nuclear Spectra and Anisotropy

Aifeng Li, Fangheng Zhang, Wei Liu, Zhaodong Lv, Dongyue Liang, Xiangqu Chen

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galatic cosmic rays; nearby source; cosmic ray anisotropy; cosmic ray spectra

Online: 7 November 2023 (08:28:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints202003.0460.v1

Włodzimierz Lewoniewski, Krzysztof Węcel, Witold Abramowicz

Subject: Computer Science And Mathematics, Information Systems Keywords: Wikipedia; reference; source; reliability; popularity; Wikidata, DBpedia

Online: 31 March 2020 (22:18:51 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0080.v1

Simulating the Effects of Agricultural Management on Water Quality Dynamics in Rice Paddies for Sustainable Rice Production—Model Development and Validation

Soon-Kun Choi, Jaehak Jeong, Min-Kyeong Kim

Subject: Environmental And Earth Sciences, Environmental Science Keywords: APEX; rice paddy; water quality; agriculture; modeling; nonpoint source pollution

Online: 12 October 2017 (06:10:32 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0266.v1

Study on the Water Source for Filling the Weak Rich (Conductive) Water Aquifer in the Changxing Formation Limestone of Coal Seam Roof

Xianzhi Shi, Guosheng XU, Shuyun ZHu

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: Changxing Formation limestone; weak (conductive) aquifer; mine water source for filling; atmospheric precipitation

Online: 6 February 2024 (03:49:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints202312.1089.v1

Hybrid approach for multiscale and multimodal time-resolved diagnosis of ultrafast processes in materials via tailored synchronization of laser and X-ray sources at MHz repetition rates

Nikita Marchenkov, Evgenii Mareev, Anton Kulikov, Fedor Pilyak, Eduard Ibragimov, Yury V. Pisarevsky, Fedor Potemkin

Subject: Physical Sciences, Optics And Photonics Keywords: FPGA; synchrotron radiation source; ultrashort lasers; synchronization

Online: 14 December 2023 (10:56:16 CET)

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Preprint ARTICLE | doi:10.20944/preprints202101.0182.v1

Overview of the French Operational Network for In Situ Observation of PM Chemical Composition and Sources in Urban Environments (CARA Program)

Olivier Favez, Samuël Weber, Jean-Eudes Petit, Laurent Y. Alleman, Alexandre Albinet, Véronique Riffault, Benjamin Chazeau, Tanguy Amodeo, Dalia Salameh, Yunjiang Zhang, Deepchandra Srivastava, Abdoulaye Samaké, Robin Aujay, Arnaud Papin, Nicolas Bonnaire, Carole Boullanger, Mélodie Chatain, Florie Chevrier, Anaïs Detournay, Marta Dominik-Sègue, Raphaële Falhun, Céline Garbin, Véronique Ghersi, Guillaume Grignion, Gilles Levigoureux, Sabrina Pontet, Jérôme Rangognio, Shouwen Zhang, Jean-Luc Besombes, Sébastien Conil, Gaelle Uzu, Joël Savarino, Nicolas Marchand, Valérie Gros, Caroline Marchand, Jean-Luc Jaffrezo, Eva Leoz-Garziandia

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: France; urban air quality; aerosol chemical composition; source apportionment; monitoring strategies

Online: 11 January 2021 (10:57:48 CET)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202009.0320.v1

Reciprocal Personal/Public Protection for COVID-19 with Mask Discriminating Mouth and Nose

Yijun Yuan

Subject: Medicine And Pharmacology, Pulmonary And Respiratory Medicine Keywords: reciprocal personal/public protection; mask discriminating mouth and nose; mouth cover; mask; face covering; source control; source classification; Covid-19; active source; liquid droplets

Online: 14 September 2020 (11:45:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202304.0552.v1

The Frequency Spectrum Analysis of Wideband Oscillations of Grid-Connected Voltage Source Converter.

Liyi Wang, Deyu Cai

Subject: Engineering, Electrical And Electronic Engineering Keywords: Voltage Source Converter (VSC); Wideband Oscillations; Equivalent Impedance Model; Modal analysis for VSC

Online: 19 April 2023 (05:53:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0327.v2

Implications of Hf Isotopes for the Evolution of the Mantle Source of Magmas Associated with the Giant El Teniente Cu-Mo Megabreccia Deposit, Central Chile

Charles R. Stern, Kwan-Nang Pang, Hao-Yang Lee, M. Alexandra Skewes, Alejandra Arévalo

Subject: Environmental And Earth Sciences, Geochemistry And Petrology Keywords: El Teniente Cu-Mo deposit; Andean magmatism; subduction erosion; mantle source region contamination; hafnium isotopes

Online: 8 September 2019 (17:22:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0080.v1

Spatio – Temporal Characteristics of the Aftershocks Sequences that followed the Strong Earthquakes in Ionian Islands, Greece

Alexandra Moshou, George Drakatos, Vassilios Moussas, Panagiotis Argyrakis, Antonios Konstantaras, Anna Christina Daverona, Dimos Pantazis, Nikos C. Sagias

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: earthquake; source observations; body wave modeling; seismicity; ionian sea; gnss; machine learning; neural network

Online: 4 September 2020 (04:08:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.0513.v1

Development and Application of a Chemical Ionization Focusing Integrated Ionization Source TOFMS for On-Line Detection of OVOCs in the Atmosphere

Ruidong Liu, Yingzhe Guo, Mei Li, Jing Li, Dong Yang, Keyong Hou

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: chemical ionization source; segmented quadrupole; oxygenated volatile organic compounds; chemical ionization; photoionization

Online: 7 August 2023 (11:44:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0501.v1

Elevated Urinary Arsenic Level among Residents of an Arsenic-Endemic Area of Southern Thailand and its Related Factors: Three Decades after Mitigation Attempts

Udomsak Saengow, Surasak Vijitpongjinda, Supabhorn Yimthiang, Apichai Wattanapisit, Sirilak Thaicharoen

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: human arsenic exposure; water source; risk factors; Thailand

Online: 21 September 2020 (11:32:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.0435.v1

Collaborators’ Attitudes and Productivity in Open-Source Software Development

Joonhaeng Lee, Keuntae Cho

Subject: Business, Economics And Management, Business And Management Keywords: open-source software; collaboration; sentiment analysis

Online: 7 February 2024 (10:18:28 CET)

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Preprint ARTICLE | doi:10.20944/preprints201912.0063.v1

A Comparitive Analysis Between Open Source And Closed Source Software in Terms of Complexity and Quality Factors

Mehreen Sirshar, Asma Ali, Sara Ibrahim

Subject: Engineering, Control And Systems Engineering Keywords: Software Quality Metrics; closed source software; open source software; Kahane’s Approach; UCP (Use Case Points) model and William’s Models

Online: 5 December 2019 (08:37:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0517.v1

Effects of Neurofeedback in the Working Memory of Children with Learning Disorders: An EEG Power-Spectrum Analysis

Benito Javier Martínez-Briones, Jorge Bosch-Bayard, Rolando Jose Biscay-Lirio, Lucero Albarrán-Cárdenas, Juan Silva-Pereyra, Thalía Fernández

Subject: Social Sciences, Psychology Keywords: Neurofeedback; Learning Disorders; Working Memory; School-age Children; EEG Power Spectrum; Source Localization

Online: 21 May 2021 (09:53:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1760.v1

Optimal Laboratory Cultivation Conditions of Limnospira maxima for Large-Scale Production

Yirlis Yadeth Pineda-Rodriguez, Diana Sofia Herazo-Cardenas, Adriana Vallejo-Isaza, Marcelo F. Pompelli, Alfredo Jarma-Orozco, Juán de Dios Jaraba-Navas, Jhony David Cordero-Ocampo, Marianella Gonzalez-Berrio, Daniela Vegliante Arrieta, Ana Pico-Gonzalez, Anthony Ricardo Ariza-González, Katia Aviña-Padilla, Luis Alfonso Rodriguez-Paez

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: nitrogen source; food security; cyanobacteria; Arthrospira maxima; phycobiliproteins.

Online: 28 September 2023 (05:30:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201905.0201.v1

Exploring the Future Development of Research, Technology and Business of Machine Tool Domain in New-Generation Information Technology Environment Based on Machine Learning

Jihong Chen, Kai Zhang, Yuan Zhou, Yufei Liu, Lingfeng Li, Zheng Chen, Li Yin

Subject: Engineering, Mechanical Engineering Keywords: future development analysis; machine tool; machine learning; multi-source data; topic model

Online: 16 May 2019 (10:20:58 CEST)

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Preprint REVIEW | doi:10.20944/preprints202312.1862.v1

A Review of Natural Polysaccharides: Sources, Characteristics, Properties, Food and Pharmaceutical Applications

Ikbel Benalaya, Gilberto Alves, João Lopes, Luís R. Silva

Subject: Chemistry And Materials Science, Biomaterials Keywords: Polymers Biopolymers; Excipient, Natural source; Food; Pharmaceutical applications

Online: 26 December 2023 (02:41:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202202.0120.v1

Principal Component Analysis of Heavy Metals in Atmospheric Aerosols from Meycauayan, Bulacan, Philippines

Maria Cecilia D Galvez, Edgar Vallar, Red M Castilla, Paulito Mandia, Regine Branzuela, Ofelia Rempillo, Aileen Huelgas Orbecido, Arnel Beltran, Nadine Ledesma, Custer Deocaris, Vernon Morris, Lawrence Phoa Belo

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Meycauayan; aerosols; source apportionment; principal component analysis; MMORS

Online: 8 February 2022 (14:55:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0297.v1

Signal Fluctuations and the Information Transmission Rates in Binary Communication Channels

Agnieszka Pregowska

Subject: Computer Science And Mathematics, Probability And Statistics Keywords: information source; information transmission rate; fluctuations; entropy; standard deviation; spike-trains

Online: 14 July 2020 (10:57:02 CEST)

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(1) Background: In nervous system information is conveyed by a sequence of action potentials, called spikes-trains. As MacKay and McCulloch proposed, spike-trains can be represented as bits sequences coming from Information Sources. Previously, we studied relations between Information Transmission Rates (ITR) carried out by the spikes, their correlations, and frequencies. Here, we concentrate on the problem of how spikes fluctuations affect ITR. (2) Methods: The Information Theory Method developed by Shannon is applied. Information Sources are modeled as stationary stochastic processes. We assume such sources as two states Markov processes. As a spike-trains' fluctuation measure, we consider the Standard Deviation sigma, which, in fact, measures average fluctuation of spikes around the average spike frequency. (3) Results: We found that character of ITR and signal fluctuations relation strongly depends on the parameter s which is a sum of transitions probabilities from no spike state to spike state and vice versa. It turned out that for smaller s (s<1) the quotient ITR\sigma has a maximum and can tend to zero depending on transition probabilities. While for s large enough (1<s) the ITR\sigma is separated from 0 for each s. Similar behavior was observed also when we replaced Shannon entropy terms in Markov entropy formula by their approximation with polynomials. We also show that the ITR quotient by Variance behaves in a completely different way. (4) Conclusions: Our results show that for large transition parameter s the Information Transmission Rate by sigma will never decrease to zero. Specifically, for 1<s<1.7 the ITR will be always, independently on transition probabilities which form this s, above the level of fluctuations, i.e. in this case we have sigma<ITR. Thus, we conclude that in a more noisy environment, to get appropriate reliability and efficiency of transmission, Information Sources with higher tendency of transition from the state no spike to spike state and vice versa should be applied.

Preprint ARTICLE | doi:10.20944/preprints202102.0513.v1

Development of Tools for Coastal Management in Google Earth Engine: Uncertainty Bathtub Model and Bruun Rule

Lucas Terres de Lima, Sandra Fernández-Fernández, João Francisco Gonçalves, Luiz Magalhães Filho, Cristina Bernardes

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Sea-Level Rise; GIS; Open-Source Software; Modeling

Online: 23 February 2021 (12:39:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0421.v1

Development of Tools for Coastal Management in Google Earth Engine: Uncertainty Bathtub Model and Bruun Rule

Lucas Terres de Lima, Sandra Fernández-Fernández, João Francisco Gonçalves, Luiz Magalhães Filho, Cristina Bernardes

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Sea-Level Rise; GIS; Open-Source Software; Modeling

Online: 18 February 2021 (13:52:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0570.v1

An Exploratory Investigation of Organic Solid Waste for Energy Use in the Dominican Republic: Case of the Municipality of Puñal, Santiago

Edian F Franco, Wilfredo Padrón Iglesia, Karina Pérez Teruel

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Household solid waste; Dominican Republic; separation at source; Organic solid waste, Household survey; Cibao; North region.)

Online: 30 November 2021 (12:56:26 CET)

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Preprint ARTICLE | doi:10.20944/preprints202305.2220.v1

A Source Seeking Method for the Implicit Information Field Based on a Balanced Searching Strategy

Kun Liu, Yang Bi, Qi Zhang, JunFang Li

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Source Seeking; Biological Homing Behaviors; Implicit Information Field; Balanced Searching Strategy

Online: 31 May 2023 (10:25:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202007.0571.v1

Migration of Natural Hydrogen from Deep-seated Sources in the São Francisco Basin, Brazil

Frederic Victor Donze, Laurent Truche, Parisa Sheraki Namin, Nicolas Lefeuvre, Elena Bazarkina

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: native hydrogen; deep-seated source of natural hydrogen; H2 seepage; radiolysis; serpentinization; draining faults

Online: 24 July 2020 (05:23:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202108.0107.v1

Tree Resin as the Most Macroergic Constituent of Conifers – A Possible Means to Mitigate Global Warming and Climate Change

Jaroslav Demko, Ján Machava

Subject: Business, Economics And Management, Accounting And Taxation Keywords: resin; soft- and hardwood; combustion heat; pulp; renewable source; carbon sequestration; climate change

Online: 4 August 2021 (11:24:26 CEST)

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Preprint REVIEW | doi:10.20944/preprints202105.0033.v1

Campylobacter: A Foodborne Pathogen with Emerging Antimicrobial Resistance

Amritanjali Kiran, Maria Josefina Ruiz Alvarez, Khine Swe Swe Han, Abishek Kumar, Dipanjan Chakraborty, Lawrence Mugisha, Hana Elbadawi, Yara Khalaf, Aparna Panicker, Sajini Souda, Maarten B.M. van Dongen

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Campylobacter; Antimicrobial Resistance; Foodborne Pathogen; Animal Source

Online: 5 May 2021 (11:05:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202101.0082.v2

End Point Rate Tool for QGIS (EPR4Q): Validation Using DSAS and AMBUR

Lucas Terres de Lima, Sandra Fernández-Fernández, Jean Marcel de Almeida Espinoza, Miguel da Guia Albuquerque, Cristina de Almeida Bernardes

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Shoreline Evolution; Open-Source Software; GIS; Modeling

Online: 19 February 2021 (09:46:48 CET)

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Preprint REVIEW | doi:10.20944/preprints201805.0004.v1

The Pollutant Particle Size and Chemistry Matters

Rimantas Kodzius, Dana Khdr, Nima Rabiei, Asan Fattah, Xiaohong Wang, Jinfeng Liu, Xiuqing Gong, Samar Damiati

Subject: Environmental And Earth Sciences, Pollution Keywords: aerosols; Particulate Matter (PM); PM2.5; nanoparticles; toxicity; source; Organ-on-a-Chip (OoC)

Online: 1 May 2018 (09:54:13 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.0372.v1

Low-cost Open Source Tool for Frugal Computer Simulation of Robotics Nonlinear Control

Felipe J. Torres, Israel Martínez, Fabio A. Aguirre, Mario A. Garcia-Murillo, Antonio Balvantín-García, Diego A. Núñez

Subject: Computer Science And Mathematics, Other Keywords: Open-source; Raspberry Pi; computer simulation; frugal; nonlinear control

Online: 6 September 2023 (10:21:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.2125.v1

Electron-Beam Processing of Aluminum-Containing Ceramics in the Forevacuum Pressure Range

Aleksandr Klimov, Ilya Bakeev, Vladimir Beskresnov, Aleksey Zenin

Subject: Physical Sciences, Applied Physics Keywords: plasma-cathode electron source; electron-beam irradiation; roughness; microhardness; thermal conductivity; ceramics; processing; Al2O3; AlN

Online: 31 August 2023 (09:45:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0649.v1

Source-Sink Manipulation Affects Accumulation of Zinc and Other Nutrient Elements in Wheat Grains

Lan Wang, Haiyong Xia, Xiaojing Li, Yuetong Qiao, Yanhui Xue, Xilong Jiang, Wei Yan, Yumin Liu, Yanfang Xue, Lingan Kong

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: wheat; micronutrient; macronutrient; source-sink regulation; biofortification; phytate; bioavailability

Online: 25 March 2021 (17:17:10 CET)

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In order to better understand the source-sink flow and relationships of Zinc (Zn) and other nutrients in wheat (Triticum aestivum L.) plants for biofortification and improving grain nutritional quality, effects of reducing photoassimilate source (through the flag leaf removal and spike shading) or sink (through 50% spikelets removal) in the field on accumulation of Zn and other nutrients in wheat grains of two cultivars (Jimai 22 and Jimai 44) were investigated under two soil Zn application levels. The single panicle weight (SPW), kernel number per spike (KNPS), thousand kernel weight (TKW), total grain weight (TGW), concentrations and yields of various nutrient elements (Zn, Fe, Mn, Cu, N, P, K, Ca and Mg), phytate phosphorus (phytate-P), phytic acid (PA) and phytohormones (ABA: abscisic acid, and the ethylene precursor ACC: 1-aminocylopropane-1-carboxylic acid), and C/N ratios were determined. Soil Zn application significantly increased concentrations of grain Zn, N and K. Cultivars showing higher grain yields had lower grain protein and micronutrient nutritional quality. SPW, KNPS, TKW (with an exception of TKW in half spikelets removal), TGW, and nutrient yields in wheat grains were most severely reduced by half spiklets removal, secondly by spike shading, and slightly by flag leaf removal. Grain concentrations of Zn, N and Mg consistently showed negative correlations with SPW, KNPS and TGW, but positively with TKW. There were general positive correlations among grain concentrations of Zn, Fe, Mn, Cu, N and Mg, and bioavailability of Zn and Fe (estimated by molar ratios of PA/Zn, PA × Ca/Zn, PA/Fe, or PA × Ca/Fe). Although concentrations of Zn and Fe were increased and Ca was decreased in treatments of half spikelets removal and spike shading, the simultaneously increased PA limited the increase in bioavailability of Zn and Fe. In general, different nutrient elements interact with each other and are affected to different degrees by source-sink manipulations. Elevated endogenous ABA levels and ABA/ACC ratios were associated with increased TKW and grain-filling of Zn, Mn, Ca and Mg, and inhibited K in wheat grains. However, effects of ACC were diametrically opposite. These results provide basis for wheat grain biofortification to alleviate human malnutrition.

Preprint ARTICLE | doi:10.20944/preprints202005.0159.v1

Rural Smallholder Farmers' Awareness and Use of ICT-Based Market Information Sources in South Africa

Christopher Nwafor, Carlu van der Westhuizen, Abiodun Ogundeji

Subject: Computer Science And Mathematics, Computer Networks And Communications Keywords: awareness; livestock farmer; ICT-source; market information; rural; smallholder

Online: 9 May 2020 (08:46:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202106.0667.v1

Air Quality in the Italian Northwestern Alps during Year 2020: Assessment of the COVID-19 «Lockdown Effect» from Multi-Technique Observations and Models

Henri Diémoz, Tiziana Magri, Giordano Pession, Claudia Tarricone, Ivan Karl Friedrich Tombolato, Gabriele Fasano, Manuela Zublena

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: COVID-19; air quality; nitrogen oxides; ozone; aerosol; source apportionment; aerosol profiles; models; Alps; Italy

Online: 28 June 2021 (14:37:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1574.v1

Optimization of Plant-Based Medium for Growth and Viability of Lactobacillus delbrueckii ssp. bulgaricus

Philip Junior Yeboah, Abdulhakim Sharaf Eddin, Namesha Dulari Wijemanna, Leonard L Williams, Albert Krastanov, Salam A. Ibrahim

Subject: Biology And Life Sciences, Food Science And Technology Keywords: Lactobacillus bulgaricus; growth media; nitrogen source; starter culture; bacterial enumeration

Online: 25 September 2023 (12:34:21 CEST)

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Working Paper ARTICLE

Spatiotemporal Variations in Seston C: N: P Stoichiometry in a Large Eutrophic Floodplain Lake (Lake Taihu): Do the Sources of Seston Explain Stoichiometric Flexibility?

Jian Cai, Chengrong Bai, Xiangming Tang, Jiangyu Dai, Xingyu Jiang, Yang Hu, Keqiang Shao, Guang Gao

Subject: Environmental And Earth Sciences, Environmental Science Keywords: seston stoichiometry; source estimation; n-alkanes proxies; large eutrophic floodplain lakes; Lake Taihu

Online: 18 November 2019 (04:31:03 CET)

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Preprint ARTICLE | doi:10.20944/preprints202003.0257.v1

Generation System for Renewable Energy Density Substantially Higher than that of Power Stations and Presentation of Novel Superconductivity

Shinichi Ishiguri

Subject: Physical Sciences, Condensed Matter Physics Keywords: divergent current density; new superconductivity; Meissner effect; new type of condensation; energy generation; electrostatic potential; independent current source; voltage-controlled current source; renewable energy

Online: 16 March 2020 (04:18:23 CET)

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Societies around the world face serious energy problems related to the consumption of fossil fuels and the emission of dangerous radiation. To solve these problems, a new superconductor exhibiting a critical temperature higher than room temperature has been pursued but not achieved. This paper proposes a new energy generation system based on a circuit approach. Secondary to this process, a new type of superconductivity without refrigeration is demonstrated. In our previous paper [1], this system was proposed, but it did not describe the underlying theory in detail and did not mention an actual method to generate energy from the system. The present paper describes the theory of the existence of divergent current density and new superconductivity with no refrigeration. Moreover, the present paper proposes a method for extracting energy from the system by employing a voltage-controlled current source (i.e., a voltage–current converting method).The principle of the system is based on a circuit of two loops and independent current sources. First, the two electric loops are prepared, each with 4 diodes, where the diodes are oriented in the same direction within each loop, but their direction is opposite from loop to loop; four independent current sources connect the loops. In this circuit system, current is added iteratively as it flows along the loop according to Kirchhoff’s circuit law. As a result, a large current and electric potential are present along the loop. To confirm that this system works properly, it is necessary to demonstrate the presence of divergent currents in the transient state, and to do this, the present paper employs the Dirac equation and Lorentz conservation. Electric circuit software is employed to demonstrate that the presented method generates energy actually from our system.Our results confirm the presence of divergent current at a connected point of an independent current source in the transient state. Moreover, in the steady state, the theory demonstrates the Meissner effect (i.e., a London equation) and a new type of macroscopic wave function and condensation. For an initial small input current of 0.1 μA, the simulation reveals a large generating current of 7 kA and electric power of 10¹¹ W, which is much larger than unit of power from an average thermal power station; moreover, the system presents with superconducting electrical transport conditions.The present study is significant because it demonstrates theoretically the existence of divergent current density and a new type of superconductivity requiring no refrigeration. Secondly, the simulations show the generation of a large energy density that can be obtained in a small laboratory room with minimal cost.

Preprint ARTICLE | doi:10.20944/preprints202004.0472.v1

Open Source Digitally Replicable Lab-Grade Scales

Benjamin R. Hubbard, Joshua M. Pearce

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: 3-D printing; additive manufacturing; distributed manufacturing; laboratory equipment; open hardware; open source; open source hardware; scale; balance; mass

Online: 27 April 2020 (02:59:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202310.1951.v1

Analysis of the Variation in Bearing Estimation Error with Frequency Band for a Source beneath Arctic Ice by a Geophone

Sheng Chen, Hongtao Wen, Yanming Yang, Hongtao Zhou, Hailin Ruan

Subject: Physical Sciences, Acoustics Keywords: bearing estimation error; Arctic, cross-ice; underwater acoustic source; ice-mounted geophone; Lamb waves

Online: 30 October 2023 (15:02:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202211.0093.v1

Automatic XML Extraction from Word and Formatting of E-book Formats: Insight into the Open Source Academic Publishing Suite (OS-APS)

Carsten Borchert, Roberto Cozatl, Frederik Eichler, Astrid Hoffmann, Markus Putnings

Subject: Computer Science And Mathematics, Information Systems Keywords: automatic typesetting; media-neutral publishing; open access; open source; scholarly publishing; XML/HTML conversion

Online: 4 November 2022 (13:17:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0449.v1

Effects of Heat Transfer Analysis Through Boson Femtoscopy with Fraction Order Differentiation

Ghulam Bary, Waqar Ahmed, Muhammad Sajid, Riaz Ahmad, Ilyas Khan

Subject: Physical Sciences, Acoustics Keywords: Femtoscopy; heat-mass transfer; fluid coherence fraction; radiated source characteristics

Online: 20 July 2021 (11:54:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202204.0107.v1

On the Redox-Activity and Health-Effects of Atmospheric Primary and Secondary Aerosol: Phenomenology

Francesca Costabile, Stefano Decesari, Roberta Vecchi, Franco Lucarelli, Gabriele Curci, Dario Massabò, Matteo Rinaldi, Maurizio Gualtieri, Emanuela Corsini, Elena Menegola, Silvia Canepari, Lorenzo Massimi, Stefania Argentini, Maurizio Busetto, Gianluca Di Iulio, Luca Di Liberto, Marco Paglione, Igor Petenko, Mara Russo, Angela Marinoni, Gianpietro Casasanta, Sara Valentini, Vera Bernardoni, Federica Crova, Gianluigi Valli, Alice Corina Forello, Fabio Giardi, Silvia Nava, Giulia Pazzi, Paolo Prati, Virginia Vernocchi, Teresa La Torretta, Ettore Petralia, Milena Stracquadanio, Gabriele Zanini, Gloria Melzi, Emma Nozza, Martina Iulini, Donatella Caruso, Lucia Cioffi, Gabriele Imperato, Flavio Giavarini, Maria Battistoni, Francesca Di Renzo, Maria Agostina Frezzini, Cinzia Perrino, Maria Cristina Facchini

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: atmospheric aerosol; chemical composition; secondary aerosol; source apportionment; ultrafine particles; oxidative potential; exposure; toxicology; forecasting; micrometeorology

Online: 12 April 2022 (09:54:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202308.0919.v1

Stochastic strike-slip fault as earthquake source model

Maksim Gapeev, Alexandra Solodchuk, Roman Parovik

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: stochastic fault surface; earthquake source model; elasticity theory

Online: 11 August 2023 (09:02:09 CEST)

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