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Preprint ARTICLE | doi:10.20944/preprints201710.0008.v1

Calculation of Resonant Frequency for a Microstrip Antenna with Vertical Slots Using Applying Adaptive Network-Based Fuzzy Inference System

Mahmood Abbasi Layegh, Changiz Ghobadi, Javad Nourinia

Subject: Engineering, Electrical And Electronic Engineering Keywords: : microstrip antenna, vertical slots , adaptive network-based fuzzy Inference system , resonant frequency, artificial neural networks

Online: 2 October 2017 (09:16:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0309.v1

Acoustic Design of a Classical Concert Hall and Evaluation of its Acoustic Performance – A Case Study

Kwangbok Jeong, Taehoon Hong, Sung Hoon Kim, Jimin Kim, Sangyoub Lee

Subject: Engineering, Architecture, Building And Construction Keywords: Acoustic design; Reverberation time; Clarity; Lateral fraction; Acoustic measurements; Classical concert hall

Online: 22 May 2018 (13:49:31 CEST)

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Preprint REVIEW | doi:10.20944/preprints201810.0763.v1

Overview of Microbial Fuel Cell (MFC) Recent Advancement from Fundamentals to Applications: MFC Designs, Major Elements, and Scalability

Sami G. A. Flimban, Taeyoung Kim, Iqbal Mohammad Ibrahim Ismail, Sang-Eun Oh

Subject: Engineering, Energy And Fuel Technology Keywords: Microbial fuel cell (MFC); fuel cell elements; design; energy generation; Scaling up; configuration

Online: 2 November 2018 (10:04:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0244.v1

Sentinel-1 and Sentinel-2 Data Fusion for Mapping and Monitoring Wetlands

Gordana Kaplan, Ugur Avdan

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Image Fusion, Sentinel-1, Sentinel-2, Wetlands, Object-Based Classification, Unmanned Aerial Vehicle

Online: 13 July 2018 (17:11:07 CEST)

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Wetlands benefits can be summarized but are not limited to their ability to store floodwaters and improve water quality, providing habitats for wildlife and supporting biodiversity, as well as aesthetic values. Over the past few decades, remote sensing and geographical information technologies has proven to be a useful and frequent applications in monitoring and mapping wetlands. Combining both optical and microwave satellite data can give significant information about the biophysical characteristics of wetlands and wetlands` vegetation. Also, fusing data from different sensors, such as radar and optical remote sensing data, can increase the wetland classification accuracy. In this paper we investigate the ability of fusion two fine spatial resolution satellite data, Sentinel-2 and the Synthetic Aperture Radar Satellite, Sentinel-1, for mapping wetlands. As a study area in this paper, Balikdami wetland located in the Anatolian part of Turkey has been selected. Both Sentinel-1 and Sentinel-2 images require pre-processing before their use. After the pre-processing, several vegetation indices calculated from the Sentinel-2 bands were included in the data set. Furthermore, an object-based classification was performed. For the accuracy assessment of the obtained results, number of random points were added over the study area. In addition, the results were compared with data from Unmanned Aerial Vehicle collected on the same data of the overpass of the Sentinel-2, and three days before the overpass of Sentinel-1 satellite. The accuracy assessment showed that the results significant and satisfying in the wetland classification using both multispectral and microwave data. The statistical results of the fusion of the optical and radar data showed high wetland mapping accuracy, with an overall classification accuracy of approximately 90% in the object-based classification. Compared with the high resolution UAV data, the classification results give promising results for mapping and monitoring not just wetlands, but also the sub-classes of the study area. For future research, multi-temporal image use and terrain data collection are recommended.

Preprint ARTICLE | doi:10.20944/preprints201807.0581.v1

Prefabricated Hybrid Wall Panel System for Lightweight Steel Construction in Seismic Prone Regions

Pezhman Sharafi, Mina Mortazavi, Bijan Samali, Hamid Ronagh

Subject: Engineering, Civil Engineering Keywords: panelised construction; lightweight frames; hybrid systems; cold formed steel; hot rolled steel; design for earthquake, lateral force resisting system

Online: 30 July 2018 (10:24:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0045.v1

Methodology for a Dump Design Optimization in Large-Scale Open Pit Mines

Jorge Puell Ortiz

Subject: Engineering, Control And Systems Engineering Keywords: mine planning; dump design; open pit; optimization

Online: 5 May 2017 (05:29:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201706.0007.v1

Pipeline Leak Detection by Transient-Based Method Using MATLAB® Functions

Albert Carbó-Bech, Salvador A. De Las Heras, Alfredo Guardo

Subject: Engineering, Mechanical Engineering Keywords: pipeline modeling; leak detection; transient-based method; pipeline system

Online: 1 June 2017 (08:20:31 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0060.v1

Bandwidth Estimation Tools and Techniques: A Review

Mukta Airon, Neeraj Gupta

Subject: Computer Science And Mathematics, Information Systems Keywords: available bandwidth estimation techniques; active bandwidth estimation techniques; passive bandwidth estimation techniques; model based bandwidth estimation techniques

Online: 10 October 2017 (10:37:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0242.v1

A General Design Procedure for Symmetrical Windings of Electrical Machines

Massimo Caruso, Antonino Oscar Di Tommaso, Fabrizio Marignetti, Rosario Miceli, Giuseppe Ricco Galluzzo

Subject: Engineering, Electrical And Electronic Engineering Keywords: Rotating electrical machines; winding design; symmetrical winding; star of slots.

Online: 25 January 2018 (12:18:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0123.v1

Three-Dimensional Facies Analysis using Object-Based Geobody Modeling: A Case Study for the Farewell Formation, Maui Gas Field, Taranaki Basin, New Zealand

AKM Eahsanul Haque, Md. Aminul Islam, Mohamed Ragab Shalaby

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: geobody modeling, object-based facies modeling (OBFM), variogram analysis, farewell formation, paleo-depositional environment

Online: 15 January 2018 (10:01:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0085.v1

Garments Texture Design Class Identification Using Deep Convolutional Neural Network

S.M. Sofiqul Islam, Emon Kumar Dey, Md. Nurul Ahad Tawhid, B. M. Mainul Hossain

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: CNN; Deep Learning; AlexNet; VGGNet; Texture Descriptor; Garment Categories; 13 Garment Trend Identification; Design Classification for Garments.

Online: 27 July 2016 (15:39:53 CEST)

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Preprint REVIEW | doi:10.20944/preprints201607.0012.v1

Analysis of Access Control Methods in Cloud Computing

Madhura Mulimani, Rashmi Rachh

Subject: Computer Science And Mathematics, Information Systems Keywords: role-based access control; attribute-based access control; attribute-based encryption

Online: 8 July 2016 (10:12:21 CEST)

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Working Paper ARTICLE

Deep-Learning Based Real-Time Multiple-Object Detection and Tracking from Aerial Imagery via Flying Robot with GPU-based Embedded Devices

Sabir Hossain, Deok-Jin Lee

Subject: Engineering, Control And Systems Engineering Keywords: Multi-Target Detection and Tracking; Multi-copter Drone; Aerial Imagery, Image Sensor, Deep Learning, GPU-based Embedded Module, Neural Computing Stick; Image Processing

Online: 18 July 2019 (10:09:05 CEST)

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Working Paper ARTICLE

Preschoolers’ Development of Understanding Zero

Attila Krajcsi, Petia Kojouharova, Gabor Lengyel

Subject: Social Sciences, Psychology Keywords: numerical cognition; zero; number status of zero; items based number representation

Online: 16 July 2020 (12:35:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202010.0043.v1

ASMD-FSMD Technique for Designing Digital Devices on FPGA

Valery Salauyou

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: digital device; finite state machine with datapath; algorithm state machine with datapath; field programmable gate array; design technique; development time; reliability; area; performance

Online: 2 October 2020 (13:54:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202309.1541.v1

Factors Influencing Attitudes of University Students towards ChatGPT and its Usage: A Multi-National Study Validating the TAME-ChatGPT Survey Instrument

Maram Abdaljaleel, Muna Barakat, Mariam Alsanafi, Nesreen A. Salim, Husam Abazid, Diana Malaeb, Ali Haider Mohammed, Bassam Abdul Rasool Hassan, Abdulrasool M. Wayyes, Sinan Subhi Farhan, Sami El Khatib, Mohamad Rahal, Ali Sahban, Doaa H. Abdelaziz, Noha O. Mansour, Reem AlZayer, Roaa Khalil, Feten Fekih-Romdhane, Rabih Hallit, Souheil Hallit, Malik Sallam

Subject: Social Sciences, Education Keywords: higher education; technology acceptance; generative pre-trained transformer; curriculum design; academia

Online: 22 September 2023 (08:39:44 CEST)

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Artificial intelligence (AI)-based models hold the potential to transform higher education if adopted properly and ethically. A prime example is ChatGPT with earlier studies indicating its widespread adoption in academia and by university students. The current study aimed to identify the factors influencing the attitude towards ChatGPT and its usage among university students in Arab countries. A previous survey instrument termed Technology Acceptance Model Edited to Assess ChatGPT Adoption (TAME-ChatGPT) was administered online using a convenience-based approach among the contacts of the authors. Confirmatory factor analysis (CFA) for the survey constructs was done using root mean square error of approximation (RMSEA), standardized root mean square residual (SRMR), comparative fit index (CFI), and Tucker-Lewis index (TLI). The final study sample comprised a total of 2240 participant divided as follows: Iraq (n=736, 32.9%), Kuwait (n=582, 26.0%), Egypt (n=417, 18.6%), Lebanon (n=263, 11.7%), and Jordan (n=242, 10.8%). A total of 1048 respondents heard of ChatGPT before the study (46.8%), of which 551 used ChatGPT (52.6%). The mean scores of TAME-ChatGPT constructs showed that the ease of ChatGPT use, positive attitude towards technology and social influence, higher perceived usefulness, the influence of behavioral/cognitive factors, low perceived risks and low anxiety were the determinants of positive attitude to ChatGPT and its use. For both the attitude and usage scales of TAME-ChatGPT, CFA collectively yielded satisfactory fit indices as indicated by low RMSEA and SRMR together with high CFI and TLI. Multivariate analysis showed that attitude to ChatGPT use was significantly influenced by country of residence, age, university type, and the latest grade point average of the students. The current study confirmed the validity of TAME-ChatGPT as a survey instrument to assess the possible determinants of ChatGPT use among university students in Arab countries. The study findings highlighted that successful adoption of ChatGPT in higher education could be dependent on perceived ease of use, usefulness, positive attitudes to technology, social influence, behavioral/cognitive factors, lower anxiety, and minimal perceived risks. The utility of ChatGPT in higher education requires policies that should be tailored for various settings, considering the differences observed in attitude towards ChatGPT among participating students in this study.

Preprint ARTICLE | doi:10.20944/preprints201801.0077.v1

A Methodology for Design and Analysis of Sensor Fusion with Real Data in UAV Platforms

Jesús García, Jose Manuel Molina, Jorge Trincado

Subject: Engineering, Electrical And Electronic Engineering Keywords: UAVs sensor fusion; EKF; real data analysis; system design

Online: 9 January 2018 (07:47:45 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0097.v1

PyRosetta Jupyter Notebooks Teach Biomolecular Structure Prediction and Design

Kathy Le, Jared Adolf-Bryfogle, Jason Klima, Sergey Lyskov, Jason Labonte, Steven Bertolani, Shourya Roy Burman, Andrew Leaver-Fay, Brian Weitzner, Jack Maguire, Ramya Rangan, Matt Adrianowycz, Rebecca Alford, Aleexan Adal, Morgan Nance, Rhiju Das, Roland Dunbrack, William Schief, Brian Kuhlman, Justin Siegel, Jeffrey Gray

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Protein structure and dynamics; Molecular structure and modeling; Protein and macromolecules; Computational methods and bioinformatics; Computer-based teaching tools; Learning materials and teaching tools; Multimedia teaching tools

Online: 7 February 2020 (11:42:09 CET)

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Preprint REVIEW | doi:10.20944/preprints201806.0421.v1

CO₂ Pipeline Design: A Review

Suoton P. Peletiri, Nejat Rahmanian, Iqbal M. Mujtaba

Subject: Engineering, Energy And Fuel Technology Keywords: CCS; CO2 pipeline design; pressure drop; pipeline diameter models; CO2 transportation; diameter equation

Online: 26 June 2018 (13:00:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0085.v2

Modeling and Simulation of Passenger Flow Distribution in Urban Rail Transit Hub Platform

Long Gao, Limin Jia

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: passenger flow distribution model; simulation design; performance evaluation; passenger flow volume; service level; urban rail transit hub platform

Online: 2 December 2016 (07:52:00 CET)

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Preprint REVIEW | doi:10.20944/preprints201612.0027.v1

Robots to the Rescue: A Review of Studies on Differential Medical Diagnosis Employing Ontology-Based Chat Bot Technology

Bosede Iyiade Edwards, Idris Oladele Muniru, Adrian David Cheok

Subject: Medicine And Pharmacology, Other Keywords: chatbot technology; ontology-based systems; expert systems; diagnosis; conversational agents; robotics; human-robot interaction; physician-patient relationship; intelligent agents

Online: 6 December 2016 (04:46:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0071.v1

Drug and Vaccine Design against Novel Coronavirus (2019-nCoV) Spike Protein through Computational Approach

Suresh Kumar

Subject: Biology And Life Sciences, Virology Keywords: 2019-nCoV; novel corona virus; Wuhan virus; drug; vaccine; spike protein; epitope; vaccine design

Online: 5 February 2020 (15:34:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0441.v1

A Feasibility Review of innovative Prefabricated Footing Systems for Residential Structures

Bertrand Teodosio, Shanaka Kristombu Baduge, Tuan Duc Ngo, Priyan Mendis, Maral Tecer, David Heath

Subject: Engineering, Architecture, Building And Construction Keywords: prefabricated footing system; residential structures; reactive soils; modular construction; design for manufacture and assembly

Online: 24 July 2018 (05:45:06 CEST)

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Preprint REVIEW | doi:10.20944/preprints202104.0734.v1

Code-based Post-Quantum Cryptography

Chithralekha Balamurugan, Kalpana Singh, Ganeshvani Ganesan, Muttukrishnan Rajarajan

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: Quantum computing; Post-quantum cryptography; Code-based cryptography; cryptosystem; cryptography; Privacy

Online: 28 April 2021 (08:51:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0068.v1

Effectiveness of Public and Co-operative Health Insurance Models in Nepal: A Concurrent Mixed Study

Chhabi Ranabhat, Chun-Bae Kim, Myung-Bae Park

Subject: Public Health And Healthcare, Public Health And Health Services Keywords: community-based health insurance; cooperative; benefit package; social inclusion; healthcare; Nepal

Online: 6 August 2016 (11:54:03 CEST)

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Background: Health insurance (HI) run by government is providing health care service to large population. Due to poor accountability, participation and sustainability, cooperative health insurance is becoming more popular and effective in low and middle income and some high-income countries too. In Nepal, there are public and cooperative HI is in practice. The aim of this study is to compare the effectiveness of public (government) and cooperative HI in relation to benefit packages, population coverage, inclusiveness, health care utilization, and promptness for treatment in these two health insurance models in Nepal. Method: This is an institution based concurrent mixed study consists of qualitative and quantitative variables from public and cooperative groups. We included all public HI operated by government hospitals and cooperatives groups those purchased hospital service in contract. Two separate study tools were applied to access the effectiveness of insurance models. The key questions were asked for the representatives of government and private health insurance. The numeric information consisted of in quantitative data and subjective response was included in qualitative approach. Descriptive statistics and Mean Whitney U test was applied in numeric data and qualitative information were analyzed by inductive approach Results: The study revealed that new enrolment was not increased, health care utilization rate was increased and the benefit package was almost same in both groups. The overall inclusiveness was higher for the government HI, but enrolment from the religious minority, proportion of negotiated amount during treatment were significantly higher (p<0.05). During illness, the response time to reach hospital was significantly faster in cooperative health insurance than government health insurance. Qualitative findings showed that level of participation, accountability, transparency and recording system was better in cooperative health insurance than public. Conclusion: Cooperative HI could be more sustainable and accountable to the community for all; low, middle and high-income countries.

Preprint ARTICLE | doi:10.20944/preprints201611.0149.v1

Social License to Operate and Adaptive Co-Marketing: Exchange, Social Capital and Community-Based Social Marketing

Colin Michael Hall, Helena Power

Subject: Business, Economics And Management, Marketing Keywords: adaptive co-marketing; social marketing; community-based social marketing; social license to operate; community engagement; corporate social responsibility; marketing strategy

Online: 30 November 2016 (05:13:35 CET)

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Preprint REVIEW | doi:10.20944/preprints202005.0376.v1

Computational Strategies to Combat COVID-19: Useful Tools to Accelerate SARS-CoV-2 and Coronavirus Research

Franziska Hufsky, Kevin Lamkiewicz, Alexandre Almeida, Abdel Aouacheria, Cecilia Arighi, Alex Bateman, Jan Baumbach, Niko Beerenwinkel, Christian Brandt, Marco Cacciabue, Sara Chuguransky, Oliver Drechsel, Robert D. Finn, Adrian Fritz, Stephan Fuchs, Georges Hattab, Anne-Christin Hauschild, Dominik Heider, Marie Hoffmann, Martin Hölzer, Stefan Hoops, Lars Kaderali, Ioanna Kalvari, Max von Kleist, René Kmiecinski, Denise Kühnert, Gorka Lasso, Pieter Libin, Markus List, Hannah F. Löchel, Maria J. Martin, Roman Martin, Julian Matschinske, Alice C. McHardy, Pedro Mendes, Jaina Mistry, Vincent Navratil, Eric Nawrocki, Áine Niamh O'Toole, Nancy Palacios-Ontiveros, Anton I. Petrov, Guillermo Rangel-Piñeros, Nicole Redaschi, Susanne Reimering, Knut Reinert, Alejandro Reyes, Lorna Richardson, David L. Robertson, Sepideh Sadegh, Joshua B. Singer, Kristof Theys, Chris Upton, Marius Welzel, Lowri Williams, Manja Marz

Subject: Biology And Life Sciences, Virology Keywords: virus bioinformatics; SARS-CoV-2; sequencing; epidemiology; drug design; tools

Online: 23 May 2020 (11:01:11 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0069.v1

Comparison of Pixel- and Object-Based Approaches in Phenology-Based Rubber Plantation Mapping in Fragmented Landscapes

Deli Zhai, Jinwei Dong, Georg Cadisch, Mingcheng Wang, Weili Kou, Jianchu Xu, Xiangming Xiao

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Rubber (Hevea brasiliensis) plantation; phenology; Xishuangbanna; Landsat; object-based approach; pixel-based approach

Online: 6 August 2016 (11:54:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0148.v1

Design and Optimization of an Efficient (96.1%) and Compact (2 kW/dm³) Bidirectional Isolated Single-Phase Dual Active Bridge Ac–Dc Converter

Jordi Everts

Subject: Engineering, Electrical And Electronic Engineering Keywords: ac–dc power converters; battery chargers; dual active bridge; DAB; optimal design; power MOSFETs; single-stage

Online: 15 August 2016 (11:06:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0067.v1

Effects of Layer-Interface Properties on Mechanical Performance of Concrete Elements Produced by Extrusion-Based 3D-Printing

Venkatesh Naidu Nerella, Simone Hempel, Viktor Mechtcherine

Subject: Engineering, Civil Engineering Keywords: Digital construction, concrete, 3D-printing, extrusion-based deposition, layer interfaces, bond strength, cold joints, concrete testing

Online: 3 October 2018 (17:44:13 CEST)

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Preprint COMMUNICATION | doi:10.20944/preprints201808.0240.v1

Monitoring Moisture Content for Various Kind of Tea Leaves in Drying Processes Using RF Reflectometer-Sensor System

Kok Yeow You, Chia Yew Lee, Kok San Chan, Kim Yee Lee, Ee Meng Cheng, Yeng Seng Lee

Subject: Engineering, Electrical And Electronic Engineering Keywords: tea leaves; microcontroller-based RF reflectometer; large open-ended coaxial probe; reflected voltage; moisture content

Online: 14 August 2018 (04:13:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0155.v1

2DCBS: A Model for Developing Dependable Component-Based Software

Hasan Kahtan, Nordin Abu Bakar, Rosmawati Nordin, Mansoor Abdullateef Abdulgabber

Subject: Computer Science And Mathematics, Computer Science Keywords: component-based software development; dependability attributes; availability; reliability; integrity; confidentiality; safety; maintainability

Online: 15 August 2016 (12:21:45 CEST)

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Working Paper ARTICLE

Macromolecular Modeling and Design in Rosetta: New Methods and Frameworks

Julia Koehler Leman, Brian D Weitzner, Steven M Lewis, RosettaCommons Consortium, Richard Bonneau

Subject: Chemistry And Materials Science, Theoretical Chemistry Keywords: structure prediction; Rosetta; computational modeling; protein design

Online: 16 October 2019 (05:40:52 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0027.v1

A Comprehensive Kinetic Model of Fischer-Tropsch Synthesis over Supported Cobalt Catalyst

Reza Jalilzadeh, Mahmoud Moqadam

Subject: Engineering, Energy And Fuel Technology Keywords: Fischer-Tropsch synthesis; kinetics model; cobalt based catalyst

Online: 6 March 2017 (06:47:14 CET)

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Preprint ARTICLE | doi:10.20944/preprints201808.0391.v1

Effect of Energy Balance Evaluation on Conceptual Design of Electric and Hybrid Aircraft

Jozsef Rohacs, Daniel Rohacs

Subject: Engineering, Mechanical Engineering Keywords: full electric aircraft; hybrid aircraft; energy and mass balance equations; conceptual design; constraints

Online: 22 August 2018 (05:13:14 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0789.v1

Catcalling As a Representation of the Strong Patriarchal Culture in the Perspective of Feminism

Meilisa Dwi Ervinda, Raselly Elfa Putri, Moses Pandin

Subject: Social Sciences, Gender And Sexuality Studies Keywords: catcalling, harassment; patriarchy; qualitative design; women

Online: 30 April 2021 (15:19:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0157.v1

Influence of Chinese National Centralized Drug Procurement on the Price of Policy-Related Drugs: An Interrupted Time Series Analysis

Ni Wang, Ying Yang, Luxinyi Xu, Zongfu Mao, Dan Cui

Subject: Business, Economics And Management, Accounting And Taxation Keywords: National Centralized Drug Procurement; "4+7" policy; drug price; interrupted time series; volume-based procurement.

Online: 6 April 2021 (08:18:10 CEST)

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Preprint REVIEW | doi:10.20944/preprints201907.0323.v1

Biophilic Architecture for Restoration and Therapy within the Built Environment: A Review

Farhan Asim, Venu Shree

Subject: Social Sciences, Cognitive Science Keywords: biophilia; biophilic design; sustainability; sustainable architecture; built environment; well-being; restorative environment

Online: 28 July 2019 (17:24:11 CEST)

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Preprint REVIEW | doi:10.20944/preprints202004.0409.v1

Direct Ink Writing Technology (3D Printing) of Graphene-Based Ceramic Nanocomposites: A Review

Nestor Washington Solís Pinargote, Anton Smirnov, Nikita Peretyagin, Anton Seleznev, Pavel Peretyagin

Subject: Chemistry And Materials Science, Nanotechnology Keywords: additive manufacturing; graphene oxide; graphene-based paste; direct ink writing; ceramic nanocomposites

Online: 23 April 2020 (10:09:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0180.v1

Organic Solvent Free Process to Fabricate High Performance Silicon and Graphite Composite Anode

Haiqing Xiao, Tianyue Zheng, Gao Liu

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: lithium-ion batteries, water-based binders; styrene-butadiene rubber (SBR); carboxymethyl cellulose (CMC); silicon; graphite; anode

Online: 27 February 2018 (11:07:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0278.v2

Evolution of Microgrids with Converter-Interfaced Generations: Challenges and Opportunities

Md Alamgir Hossain, Hemanshu Roy Pota, Md Jahangir Hossain, Frede Blaabjerg

Subject: Engineering, Energy And Fuel Technology Keywords: converter-based microgrids; distribution networks; renewable energy sources; definitions of microgrids and distributed generation units

Online: 14 February 2019 (04:03:12 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0517.v3

Robust Product Design: A Modern View of Quality Engineering in Manufacturing Systems

Amir Parnianifard

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: Robust Design, Taguchi Method, Product Design, Manufacturing Systems, Quality Engineering, Quality Loss Function.

Online: 25 August 2022 (08:36:39 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0183.v3

Creole Hens and Ranga-Ranga: Campesino Foodways and Biocultural Resource-Based Development in the Central Valley of Tarija, Bolivia

Katherine L. Turner, Iain J. Davidson-Hunt, Annette Aurélie Desmarais, Ian Hudson

Subject: Social Sciences, Geography, Planning And Development Keywords: biocultural resources; biocultural design; alternative food networks; sustainable rural development; local food systems; Bolivia

Online: 8 September 2016 (10:19:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0101.v1

Microstructural Evolution, Thermodynamics and Kinetics of Mo-Tm₂O₃ Powder Mixtures during Ball Milling

Yong Luo, Guang Ran, Nanjun Chen, Qiang Shen, Yaoli Zhang

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: neutron absorber; Mo-based composites; ball milling; microstructure; thulium oxide

Online: 27 September 2016 (10:45:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0150.v1

3D Printing of Cytocompatible Water-Based Light-Cured Polyurethane with Hyaluronic Acid for Cartilage Tissue Engineering Applications

Ming-You Shie, Wen-Ching Chang, Li-Ju Wei, Yu-Hsin Huang, Chien-Han Chen, Yi-Wen Chen, Yu-Fang Shen

Subject: Chemistry And Materials Science, Biomaterials Keywords: water-based polyurethane; hyaluronic acid; cartilage tissue engineering; scaffold

Online: 30 November 2016 (04:28:15 CET)

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Preprint REVIEW | doi:10.20944/preprints201707.0019.v1

Assessment of Enzyme Inhibition: A Review with Examples from the Development of Monoamine Oxidase and Cholinesterase Inhibitory Drugs

Rona R. Ramsay, Keith F. Tipton

Subject: Chemistry And Materials Science, Medicinal Chemistry Keywords: affective disorders; alzheimer’s disease; l-Deprenyl (Selegiline); donepezil; galantamine; value; inhibitor constant; mechanism-based inhibition; multitarget-directed ligand (MTDL); rasagiline; rivastigmine

Online: 11 July 2017 (05:58:53 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0076.v1

Design and Manufacturing of Conformal Cooling for Hot Stamping Dies Using Hybrid Process of Laser Metal Deposition (LMD) and Milling

Magdalena Cortina, Jon Iñaki Arrizubieta, Amaia Calleja, Eneko Ukar, Amaia Alberdi

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: additive manufacturing; laser metal deposition; hot stamping; die and mold; conformal cooling; design optimization.

Online: 12 December 2017 (15:24:24 CET)

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Preprint ARTICLE | doi:10.20944/preprints201608.0026.v1

Propose of Mix Design Method for CO₂ Reduction Concrete Using the Regression Analysis

Tae Hyoung Kim

Subject: Engineering, Civil Engineering Keywords: concrete; sustainability; regression analysis mix design; CO2 emission; cost

Online: 3 August 2016 (06:05:26 CEST)

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Preprint REVIEW | doi:10.20944/preprints202007.0055.v1

Human Attribute Recognition: A Comprehensive Survey

Ehsan Yaghoubi, Farhad Khezeli, Diana Borza, SV Aruna Kumar, João Neves, Hugo Proença

Subject: Engineering, Control And Systems Engineering Keywords: Human Attribute Recognition; Imbalanced Learning; Pedestrian Recognition; Privacy Concerns; Clothing Attributes; Soft Biometrics; Appearance-Based Learning; Deep Learning

Online: 5 July 2020 (08:21:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201609.0003.v1

Bio-Inspired Manufacturing Multi-Agent System for Control and Coordination of AGV Systems

Branislav Micieta, Lukas Durica, Vladimira Binasova

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: industrial automation; autonomous design; multi-agent systems; industry 4.0; biologically inspired techniques; AGV systems; energy efficiency

Online: 1 September 2016 (10:48:48 CEST)

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Preprint REVIEW | doi:10.20944/preprints202009.0337.v1

Alcohol-Based Hand Sanitizers – A Multidimensional Perspective

Nasser N. Nyamwweya, Kennedy O. Abuga

Subject: Public Health And Healthcare, Primary Health Care Keywords: hand sanitizers; hand rubs; alcohol based; disinfection; hand hygiene; coronavirus; COVID-19

Online: 15 September 2020 (09:07:09 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0256.v1

Deep Learning for Stock Market Prediction

Mojtaba Nabipour, Pooyan Nayyeri, Hamed Jabani, Shahab Shamshirband, Amir Mosavi

Subject: Computer Science And Mathematics, Information Systems Keywords: stock market prediction; machine learning; regressor models; tree-based methods; deep learning

Online: 16 March 2020 (01:45:16 CET)

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Preprint REVIEW | doi:10.20944/preprints202003.0182.v1

Escape Education: A Systematic Review on Escape Rooms in Education

Alice Veldkamp, Liesbeth van de Grint, Marie-Christine Knippels, Wouter van Joolingen

Subject: Social Sciences, Education Keywords: escape room; escape game; game design; team work; collaborative learning; student engagement

Online: 11 March 2020 (10:25:22 CET)

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Preprint TECHNICAL NOTE | doi:10.20944/preprints201608.0047.v1

Toughness of Railroad Concrete Crossties with Holes and Web Opening

Erosha K. Gamage, Sakdirat Kaewunruen, Alex M. Remennikov, Tetsuya Ishida

Subject: Engineering, Civil Engineering Keywords: Concrete sleeper; crosstie; design standard; holes; web opening; railway infrastructure; static performance

Online: 5 August 2016 (08:06:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0011.v1

Restaurant Acoustics – the Science behind Verbal Communication in Eating Establishments

Jens Holger Rindel

Subject: Physical Sciences, Acoustics Keywords: Verbal communication; Lombard effect; Cocktail party effect; Noise; Acoustic capacity; Universal design

Online: 1 December 2017 (18:22:36 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/preprints202005.0171.v2

COVID19: A Natural Language Processing and Ontology Oriented Temporal Case-Based Framework for Early Detection and Diagnosis of Novel Coronavirus

Olaide N. Oyelade, Absalom E. Ezugwu

Subject: Computer Science And Mathematics, Algebra And Number Theory Keywords: COVID-19; coronavirus; case-based reasoning; ontology; natural language processing

Online: 15 June 2020 (11:16:23 CEST)

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Coronavirus, also known as COVID-19, has been declared a pandemic by the World Health Organization (WHO). At the time of conducting this study, it had recorded over 1.6 million cases while more than 105,000 have died due to it, with these figures rising on a daily basis across the globe. The burden of this highly contagious respiratory disease is that it presents itself in both symptomatic and asymptomatic patterns in those already infected, thereby leading to an exponential rise in the number of contractions of the disease and fatalities. It is therefore crucial to expedite the process of early detection and diagnosis of the disease across the world. The case-based reasoning (CBR) model is an effective paradigm that allows for the utilization of cases’ specific knowledge previously experienced, concrete problem situations or specific patient cases for solving new cases. This study therefore aims to leverage the very rich database of cases of COVID-19 to solve new cases. The approach adopted in this study employs the use of an improved CBR model for state-of-the-art reasoning task in classification of suspected cases of Covid19. The CBR model leverages on a novel feature selection and semantic-based mathematical model proposed in this study for case similarity computation. An initial population of the archive was achieved with 68 cases obtained from the Italian Society of Medical and Interventional Radiology (SIRM) repository. Results obtained revealed that the proposed approach in this study successfully classified suspected cases into their categories at an accuracy of 97.10%. The study found that the proposed model can support physicians to easily diagnose suspected cases of Covid19 base on their medical records without subjecting the specimen to laboratory test. As a result, there will be a global minimization of contagion rate occasioned by slow testing and as well reduce false positive rates of diagnosed cases as observed in some parts of the globe.

Preprint ARTICLE | doi:10.20944/preprints201710.0057.v1

Ceramic-Based 4D-Components: Additive Manufacturing (AM) of Ceramic-Based Functionally Graded Materials (FGM) by Thermoplastic 3D-Printing (T3DP)

Uwe Scheithauer, Steven Weingarten, Robert Johne, Eric Schwarzer, Johannes Abel, Hans-Jürgen Richter, Tassilo Moritz, Alexander Michaelis

Subject: Chemistry And Materials Science, Ceramics And Composites Keywords: additive manufacturing (AM); Functionally Graded Materials (FGM); Thermoplastic 3D-Printing (T3DP; ceramics; ceramic-based 4D-components; zirconia; graded microstructure

Online: 10 October 2017 (03:21:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201704.0148.v1

Multi-objective Optimization of Draft Tube in Francis Turbine Using DOE, RBF and NSGA-II

Chol Nam Mun, De Chun Ba, Xiang Ji Yue, Myong Il Kim

Subject: Engineering, Energy And Fuel Technology Keywords: francis turbine; draft tube; optimization design; experiment of design; non–dominated sorting genetic algorithm

Online: 24 April 2017 (10:52:28 CEST)

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Preprint REVIEW | doi:10.20944/preprints201809.0225.v1

General and Prospective Views on Oxidation Reactions in Heterogeneous Catalysis

Sabine Valange, Jacques Védrine

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: heterogeneous catalytic oxidation, gas-solid, liquid-solid, partial and total oxidation, biomass based raw materials, activation methods

Online: 13 September 2018 (02:17:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201611.0041.v1

Some Computational Aspects of Triangular Boron Nanotubes

Mobeen Munir, Waqas Nazeer, Shazia Rafique, Abdul Rauf Nizami, Shin Min Kang

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: M-polynomial; degree-based index; boron nanotubes

Online: 7 November 2016 (07:41:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0158.v1

A Systematic Literature Mining of Sponge City: What Has Been Done and The Challenges Standing Ahead

Zongmin Li, Shuyan Xu, Liming Yao

Subject: Engineering, Control And Systems Engineering Keywords: Sponge city; Active, Beautiful, Clean water design; sustainable drainage systems; water-sensitive urban drainage systems; low impact developments; best management practices; literature mining; literature review

Online: 17 January 2018 (12:34:38 CET)

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Preprint REVIEW | doi:10.20944/preprints202104.0572.v1

From Conventional to Virtual Smile Design Systems: A Current Systematic Review

Mohamed Ahmed, Mohamed Tharwat, Abdelrahman Sanad, Karim Abdelhamid, Hager Ali, Raafat Tammam

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: Digital Smile Design; digital dentistry; dentistry software; dentistry design software

Online: 21 April 2021 (11:46:39 CEST)

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Preprint REVIEW | doi:10.20944/preprints202002.0198.v1

Suggestion of an Alternative Approach of Inhalation of Volatile Chemicals from Onion and Garlic for Isolated Patient of Mild Onset Infected Flu: Review and Communication

Huibing Tan, Ganqiu Wu, Xiaotong Li, Wei Hou

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: mild virus-infected flu; home-based treatment; inhalation of volatile chemicals; onion; garlic

Online: 15 February 2020 (14:38:20 CET)

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Preprint ARTICLE | doi:10.20944/preprints201707.0044.v1

A Comprehensive Technological Survey on Dependable Self-Managing CPS: The Decade of Researches on Correctness and Dependability

Peng Zhou, Kunmean HOU, Zhan Zhang, Decheng Zuo, Jian Dong, Jianjin Li, Haiyin Zhou

Subject: Engineering, Control And Systems Engineering Keywords: cyber physical systems; industry 4.0; MDE; hardware and software co-design; lifetime verification & validation; dependability; correctness; flexibility; self-management; self-adapting; self-healing

Online: 17 July 2017 (10:27:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0017.v4

Propositions for Confidence Interval in Systematic Sampling on Real Line

Mehmet Niyazi Çankaya

Subject: Computer Science And Mathematics, Mathematics Keywords: biomedical imaging; covariogram; design-based stereology; estimation of volume; systematic sampling

Online: 15 September 2016 (05:18:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0143.v1

None Operational Amplifier (OPA) Based: Design of Analogous Bandgap Reference Voltage

Hao-Ping Chan, Yu-Cherng Hung

Subject: Engineering, Electrical And Electronic Engineering Keywords: Band-gap voltage reference; voltage reference; circuit design

Online: 29 December 2016 (15:47:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0073.v1

Evaluation of Satellite Rainfall Estimates in the Pra Basin of Ghana

Collins Owusu, Kwaku Amaning Adjei, Samuel Nii Odai

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: rainfall; TMPA; CMORPH; Pra basin; satellite-based precipitation; Ghana

Online: 14 November 2016 (07:39:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints201608.0080.v2

A Mathematical Spline-Based Model of Cardiac Left Ventricle Anatomy and Morphology

Sergei Pravdin

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: left ventricle; myofibre; myocardium structure; rule-based model; mathematical anatomy

Online: 20 October 2016 (08:22:39 CEST)

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Preprint ESSAY | doi:10.20944/preprints202003.0370.v1

Essential Indicators for Measuring Area-Based Conservation Effectiveness in the Post-2020 Global Biodiversity Framework

Jonas Geldmann, Marine Deguignet, Andrew Balmford, Neil D. Burgess, Nigel Dudley, Marc Hockings, Naomi Kingston, Helen Klimmek, Alanah Hayley Lewis, Carsten Rahbek, Sue Stolton, Claire Vincent, Sue Wells, Stephen Woodley, James E.M. Watson

Subject: Environmental And Earth Sciences, Environmental Science Keywords: 2011-2020 Strategic Plan for Biodiversity; biodiversity outcomes; indicators; management effectiveness; other effective area-based conservation measures; post-2020; protected areas

Online: 25 March 2020 (04:31:56 CET)

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Preprint REVIEW | doi:10.20944/preprints202010.0053.v1

Building a High Customer Experience Management Organization: Towards Customer-Centricity

Lamin B. Ceesay

Subject: Business, Economics And Management, Accounting And Taxation Keywords: customer experience; customer-centricity; customer experience design; and integrated customer experience strategy

Online: 5 October 2020 (08:14:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0077.v1

Why Nature-Based Solutions to Climate Change Must Be Grounded in Sound Biodiversity Science

Nathalie Seddon, Beth Turner, Pam Berry, Alexandre Chausson, Cécile A.J. Girardin

Subject: Environmental And Earth Sciences, Ecology Keywords: biodiversity; climate change; forests; nature-based solutions; policy; resilience

Online: 6 December 2018 (07:39:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints201612.0114.v1

Optimal Design of Safety Instrumented Systems for Pressure Control of Methanol Separation Columns in the Bisphenol A Manufacturing Process

In-Bok Lee, Insung Woo

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: relief system; safety instrumented system; pressure relief valve; safety integrity level; minimize design capacity

Online: 23 December 2016 (10:12:59 CET)

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Preprint ARTICLE | doi:10.20944/preprints201809.0219.v1

Mapping Informal Settlements in the Middle East Environment using an Object-Based Machine-Learning Approach

Ahmad Fallatah, Simon Jones, David Mitchell

Subject: Computer Science And Mathematics, Information Systems Keywords: informal settlement indicators; very high resolution (VHR); urbanisation; sustainable development goals; object-based image analysis (OBIA); machine learning (ML); random forest (RF)

Online: 12 September 2018 (12:32:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201610.0080.v1

M-Polynomials and Topological Indices of Titania Nanotubes

Shin Min Kang, Mobeen Munir, Abdul Rauf Nizami, Shazia Rafique, Waqas Nazeer

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: degree-based topological index; Zagreb index; general Randic index; symmetric division index; M-polynomial, titania nanotubes

Online: 19 October 2016 (12:44:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201709.0074.v1

Design and Development of a Context-aware Personalized Recommendation System: Mobile and Web Application

Sara Saeedi, Xueyang Zou, Mariel Gonzales, Steve Liang

Subject: Engineering, Electrical And Electronic Engineering Keywords: recommendation system; context awareness; location based services; mobile computing, cloud-based computing

Online: 18 September 2017 (08:54:04 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0037.v1

THE AVERAGE LOWER 2-DOMINATION NUMBER OF WHEELS RELATED GRAPHS AND AN ALGORITHM

TUFAN TURACI

Subject: Computer Science And Mathematics, Computer Vision And Graphics Keywords: graph vulnerability; connectivity; network design and communication; domination number; average lower 2-domination number

Online: 15 July 2016 (09:50:33 CEST)

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The problem of quantifying the vulnerability of graphs has received much attention nowadays, especially in the field of computer or communication networks. In a communication network, the vulnerability measures the resistance of the network to disruption of operation after the failure of certain stations or communication links. If we think of a graph as modeling a network, the average lower 2-domination number of a graph is a measure of the graph vulnerability and it is defined by

γ_{2 a v} (G) = \frac{1}{| V (G) |} \sum_{v \in V (G)} γ_{2 v} (G)

, where the lower 2-domination number, denoted by

γ_{2 v} (G)

, of the graph G relative to v is the minimum cardinality of 2-domination set in G that contains the vertex v. In this paper, the average lower 2-domination number of wheels and some related networks namely gear graph, friendship graph, helm graph and sun flower graph are calculated. Then, we offer an algorithm for computing the 2-domination number and the average lower 2-domination number of any graph G.

Preprint ARTICLE | doi:10.20944/preprints201810.0608.v1

Investigation of Micro Gas Turbine Systems for High Speed Long Loiter Tactical Unmanned Air Systems

James Large, Apostolos Pesyridis

Subject: Engineering, Mechanical Engineering Keywords: Unmanned Air Vehicles; Micro Gas Turbine Performance; Low Pressure Compressor; Preliminary Design

Online: 25 October 2018 (13:09:17 CEST)

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Preprint REVIEW | doi:10.20944/preprints202006.0216.v2

Detection and Survival of SARS-coronavirus in Human Stool, Urine, Wastewater and Sludge

Andrew Singer, Rachel Wray

Subject: Biology And Life Sciences, Virology Keywords: SARS-coronavirus; Severe Acute Respiratory Syndrome; COVID-19; Stool; Urine; Wastewater; Wastewater-based epidemiology

Online: 18 June 2020 (09:29:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201912.0237.v1

Development of Continuum Robot Arm and Gripper for Harvesting Cherry Tomatoes

Azamat Yeshmukhametov, Koichi Koganezawa, Zholdas Buribayev, Yedilkhan Amirgaliyev, Yoshio Yamamoto

Subject: Engineering, Mechanical Engineering Keywords: tomato harvesting; gripper; continuum robot; tomato detection; design; agricultural robot

Online: 18 December 2019 (04:34:30 CET)

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Preprint COMMUNICATION | doi:10.20944/preprints202004.0146.v1

Virtual Screening of Potential Inhibitors for SARS-CoV-2 Main Protease

Carlos Javier Alméciga-Díaz, Luisa N. Pimentel-Vera, Angela Caro, Angela Mosquera, Camilo Andrés Castellanos Moreno, Juan Pablo Manosalva Rojas, Diana Carolina Díaz-Tribaldos

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Coronavirus Disease 2019; SARS-CoV-2; main protease; molecular docking-based virtual screening

Online: 9 April 2020 (09:34:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201805.0079.v1

BlendCAC: A Smart Contract Enabled Decentralized Capability-Based Access Control Mechanism for IoT

Ronghua Xu, Yu Chen, Erik Blasch, Genshe Chen

Subject: Engineering, Electrical And Electronic Engineering Keywords: decentralized access control; Internet of Things (IoT); blockchain protocol; smart contract; federated delegation; capability-based access control

Online: 3 May 2018 (13:06:09 CEST)

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Preprint REVIEW | doi:10.20944/preprints202010.0024.v1

A Historical Review of Slope Based SCS Method and its Effect on CN and Runoff Potential Globally

Tauseef Ahmad Ansari, Yashwant B Katpatal, C Rishma

Subject: Engineering, Automotive Engineering Keywords: Slope based SCS Curve Number; Antecedent Moisture Condition; Land Use; Runoff potential; Urban watersheds

Online: 15 October 2020 (15:14:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202002.0372.v1

Structural Genomics and Interactomics of 2019 Wuhan Novel Coronavirus, SARS-CoV-2, Indicate Evolutionary Conserved Functional Regions of Viral Proteins

Hongzhu Cui, Ziyang Gao, Ming Liu, Senbao Lu, Winnie Mkandawire, Oleksandr Narykov, Suhas Srinivasan, Mo Sun, Dmitry Korkin

Subject: Biology And Life Sciences, Virology Keywords: structural genomics; protein-protein interactions; structural bioinformaticscomparative modeling; functional annotation; antiviral design; SARS-CoV-2; 2019-nCoV

Online: 25 February 2020 (11:24:10 CET)

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Preprint REVIEW | doi:10.20944/preprints201608.0173.v1

Technologies and Applications Concomitant with Web-Based GIS

Sadiq Mukhtar

Subject: Social Sciences, Geography, Planning And Development Keywords: web-based GIS; application; architectures; technology

Online: 18 August 2016 (06:07:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201802.0174.v1

An Agent-Based Modeling Framework for Simulating Human Exposure to Environmental Stresses in Urban Areas

Liang Emlyn Yang, Peter Hoffmann, Jürgen Scheffran, Sven Rühe, Jana Fischereit, Ingenuin Gasser

Subject: Social Sciences, Geography, Planning And Development Keywords: environmental stress; human exposure; agent-based model; air pollution; urban heat wave; exposure modeling; climate change

Online: 27 February 2018 (05:12:24 CET)

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Preprint BRIEF REPORT | doi:10.20944/preprints202005.0084.v1

Nsp7 and Spike Glycoprotein of SARS-CoV-2 Are Envisaged as Potential Targets of Vitamin D and Ivermectin

Jhimli Dasgupta, Udayaditya Sen, Abhisek Bakshi, Abhijit Dasgupta, Krishnendu Manna, Chinmay Saha, Rajat K. De, Satinath Mukhopadhyay, Nitai P. Bhattacharyya

Subject: Biology And Life Sciences, Virology Keywords: SARS-CoV-2; Vitamin D; Ivermectin; RNA-dependent-RNA polymerase; Spike glycoprotein; Knowledge based docking

Online: 5 May 2020 (15:18:30 CEST)

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COVID-19 has emerged as deadly pandemic worldwide with no vaccine or suitable antiviral drugs to prevent or cure the disease. Because of the time-consuming process to develop new vaccines or antiviral agents, there has been a growing interest in repurposing some existing drugs to combat SARS-CoV-2. Vitamin D is known to be protective against acute respiratory distress syndrome (ARDS), pneumonia and cytokine storm. Recently it has been used as a repurposed drug for the treatment of H5N1 virus-induced lung injury. Circumstantial evidences indicate that people with low level of vitamin D are more susceptible to SARS-CoV-2. Although, vitamin D was suggested to interfere with viral replication, its interaction with any SARS-CoV-2 protein is unexplored yet. Beside this, ivermectin, a well-known anti-parasitic agent, exhibits potent anti-viral activities in vitro against viruses such as HIV-1 and dengue. Very recently, ivermectin has been found to reduce viral load of SARS-CoV-2 in vitro. We have analyzed available structures of SARS-CoV-2 proteins to identify probable binding partner(s) of vitamin D and ivermectin through knowledge-based docking studies and figured out possible implication of their binding in SARS-CoV-2 infection. Our observations suggest that the non-structural protein nsp7 possesses a potential site to house 25-hydroxyvitamin D3 (VDY) or the active form of Vitamin D, calcitrol. Binding of vitamin D with nsp7 likely to hamper the formation of nsp7-nsp8 complex which is required to bind with RNA dependent RNA polymerase (RdRP), nsp12 for optimal function. On the other hand, potential binding site of ivermectin has been identified in the S2 subunit of trimeric spike(S) glycoprotein of SARS-CoV-2. We propose that deeply inserted mode of ivermectin binding at three inter-subunit junctions may restrict large scale conformational changes of S2 helices which is necessary for efficient fusion of viral and host membrane. Our study, therefore, opens up avenues for further investigations to consider vitamin D and ivermectin as potential drugs against SARS-CoV-2.

Preprint ARTICLE | doi:10.20944/preprints201907.0006.v1

Fuzzy-Based Sentiment Analysis System for Analyzing Student Feedback and Satisfaction

Muhammad Zubair Asghar, Ikram Ullah, Shahab Shamshirband, Fazal Masud Kundi, Ammara Habib

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: student feedback analysis; sentiments opinion words; polarity shifters; lexicon-based

Online: 1 July 2019 (11:17:37 CEST)

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Working Paper ARTICLE

Dynamic Real-Time Risk Analytics of Uncontrollable States in Complex Internet of Things Systems: Cyber Risk at the Edge

Petar Radanliev, David De Roure, Max Van Kleek, Pete Burnap, Eirini Anthi, Jason R.C. Nurse, Omar Santos, Rafael Mantilla Montalvo, La’Treall Maddox

Subject: Engineering, Automotive Engineering Keywords: functional dependency; network-based linear dependency modelling; internet of things; micro mort model; goal-oriented approach; transformation roadmap; cyber risk regulations; empirical analysis; cyber risk self-assessment; cyber risk target state.

Online: 25 December 2020 (11:35:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints201805.0219.v1

La-Ni based Alloys Preparation for Hydrogen Reversible Sorption and their Application for Renewable Energy Storage

Artem Chesalkin, Petr Moldrik, Alexandr Martaus

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: metal hydrides; hydrogen storage; La-Ni based alloys; alloy modification and analysis; renewable energy storage

Online: 15 May 2018 (14:16:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201705.0098.v1

Towards a Strategy to Implement the China Wetland Mapping Using Landsat TM

Haiying Zhang, Zhenguo Niu, Yaomin Zheng

Subject: Environmental And Earth Sciences, Environmental Science Keywords: rule-based classification model; wetland remote sensing; SVM; TC-Wetness; China

Online: 11 May 2017 (08:03:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0148.v1

Systemic Analysis of Certified Artisan Cheese Production for Improvement—The Case of the Serra da Estrela PDO Cheese

Denis A. Coelho, Tiago E. P. Carrola, Ana F. Couvinhas

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: process improvement; ewe’s cheese; systemic design

Online: 30 December 2016 (07:34:54 CET)

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The research reported on this paper was aimed at improving the overall efficiency of a PDO certified artisanal cheese production process. Being a PDO certified foodstuff by the EU, it is considered to have properties and qualities determined by the geographical environment in which is made, with its production taking place in a specific and determined geographical location, in this case the Serra da Estrela region. In that sense, the authors conducted a mapping according to a systemic perspective of the processes involved in the context of manufacturing and distribution of certified Serra da Estrela cheese. Numerous methods were used throughout the process, such as a systemic design analysis, and techniques derived from ethnographic methods, which led to the collection of data in the field and consequently provided the immersion of the researcher in genuine work situations. Critical points were identified and emphasized in the systemic map with the purpose of encouraging initiatives to address and overcome the gaps and inefficiencies detected. The systemic design analysis triggered the development of design work. Observations following an ethnographic approach identified ergonomic risks in cheese making during the process of cutting excess chips, fostering the emergence of musculoskeletal disorders at the wrist. A tool that fits best to the task at hand was developed. A prototype of the new tool enabled collecting feedback from use in the work context, in order to inform product development. The domains of agricultural production and microbiology, considering the specific microorganisms developed trough the ripening process of the cheese, turned out to be aspects of high importance for the issue under focus, contributing to a broader understanding of the ripening process and its risks, simultaneously improving the efficiency and success of cheese production. If it were not for the systemic analysis, which served as a link between the boundaries of distinct domains such as the risk of microorganism contamination, ergonomics, energy efficiency, legislation and regulation policies, transportation challenges and economic viability, approached throughout the research. Simultaneously creating bridges between them, the various problems might not have been detected in the first place, as they are usually addressed in specialized disciplines, predetermined by the restrictions of each specific area of knowledge. As a consequence of the development of this research, which was based on an analysis that sought to establish possible connections between various disciplines and tried to constantly maintain a holistic perspective, making new connections and observing the issues from a new angle, apart from the already established methodologies. All this allowed to lay out the seeds for the development of a plan to tackle the critical points identified by the systemic analysis reported in this paper.

Preprint ARTICLE | doi:10.20944/preprints201810.0265.v1

Recognizing and Acknowledging Worldview Diversity in the Inclusive Classroom

Janieta Bartz, Thomas Bartz

Subject: Arts And Humanities, Religious Studies Keywords: inclusion; worldview education; universal design for learning; learning in the presence of the other; reflexive inclusion

Online: 12 October 2018 (11:25:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0481.v1

Validating Deep Neural Networks for Online Decoding of Motor Imagery Movements from EEG Signals

Zied Tayeb, Juri Fedjaev, Nejla Ghaboosi, Christoph Richter, Lukas Everding, Xingwei Qu, Yingyu Wu, Gordon Cheng, Jörg Conradt

Subject: Computer Science And Mathematics, Computer Science Keywords: Brain-Computer Interfaces, spectrogram-based convolutional neural network model(pCNN), Deep Learning, EEG, LSTM, RCNN

Online: 25 September 2018 (08:58:34 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0050.v1

Performance Analysis of Data–Driven and Model–Based Control Strategies Applied to a Thermal Unit Model

Cihan Turhan, Silvio Simani, Ivan Zajic, Gulden Gokcen Akkurt

Subject: Engineering, Control And Systems Engineering Keywords: modelling and simulation for control; advanced control design; model–based and data-driven approaches; artificial intelligence; thermal unit nonlinear system

Online: 9 December 2016 (03:17:38 CET)

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Preprint REVIEW | doi:10.20944/preprints201808.0023.v1

Recent Advances in the Direct Synthesis of Hydrogen Peroxide Using Chemical Catalysis – a review

Sumanth Ranganathan, Volker Sieber

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: catalyst; direct synthesis; hydrogen peroxide; Pd based catalyst; reactor engineering; microreactor

Online: 1 August 2018 (14:10:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201901.0193.v1

A New Location-Based Services Framework for Connected Vehicles Based on the Publish-Subscribe Communication Paradigm

Kachane Sonklin, Yanming Feng, Dhammika Jayalath, Charles Wang

Subject: Engineering, Transportation Science And Technology Keywords: location-based services; Vehicle-to-Everything(V2X); publish-subscribe; application protocol

Online: 20 January 2019 (09:43:11 CET)

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Location-Based Services (LBS) have been widely deployed for the connected vehicle (CV) applications such as vehicle navigation,vehicle tracking and location-based augmented reality. The current LBS deployments have limitations in supporting time-critical CV use cases, including vehicle to vehicle (V2V), vehicle to infrastructure (V2I) and vehicle-to-people (V2P) safety applications. The paper presents the new LBS framework based on the publish-subscribe communication paradigm, to enable device-to-device (D2D) connections through use of selected application protocols in the application layer of the TCP/IP layered protocol model. Two publish-subscribe application protocols, Distributed Data Service (DDS) real-time publish and subscribe (DDS-RTPS) and Message Queue Telemetry Transport (MQTT), are introduced to support the LBS D2D applications. A number of test scenarios with Mosquitto MQTT and OpenDDS under 4G-mobile broadband (MBB) services are designed to assess the transmit/receive round-trip time (RTT) and packet-loss rate (PLR) with settings of a publisher to multiple subscribers, to simulate the connections to multiple vehicles. The transmission frequency is set for 10 Hz and the message sizes vary from 100 to 2000 Bytes. The PLRs are defined as the percentages of the delayed messages beyond a delay limit. Static test results with OpenDDS show that for the RTT delay beyond the limit of 100 ms, the total PLRs range between 5.25% and 8.76% for the message size of 50 to 2000 Bytes. Vehicle testing results with Mosquitto show that PLRs for the RTT delays between 200 ms and 1000 ms are 0.63%, 3.58% and 5.77%, for connections with 1, 4 and 10 vehicles, respectively. The results demonstrate the potential of the D2D LBS framework for medium-demanding CV safety applications such as V2P and V2I use cases, taking advantages of the 4G-MBB services and 5G extreme mobile broadband (eMBB) services and mobile devices generally available with all road users.

Preprint ARTICLE | doi:10.20944/preprints201704.0114.v1

Graph-based Semi-supervised Learning for Indoor Localization Using Crowdsourced Data

Liye Zhang, Shahrokh Valaee, Yu Bin Xu, Lin Ma, Farhang Vedadi

Subject: Engineering, Electrical And Electronic Engineering Keywords: indoor localization; crowdsourcing; received signal strength; graph-based semi-supervised learning; linear regression; compressed sensing.

Online: 18 April 2017 (12:33:47 CEST)

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Working Paper ARTICLE

Cyber Risk at the Edge: Current and future trends on Cyber Risk Analytics and Artificial Intelligence in the Industrial Internet of Things and Industry 4.0 Supply Chains

Petar Radanliev, David De Roure, Kevin Page, Jason R.C. Nurse, Rafael Mantilla Montalvo, Omar Santos, La'Treall Maddox, Peter Burnap

Subject: Engineering, Automotive Engineering Keywords: Industry 4.0; Supply Chain Design; Transformational Design Roadmap; IIoT Supply Chain Model; Decision Support for Information Management

Online: 24 December 2020 (13:37:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0684.v1

Parametric Cost Estimation Model for Li-ion Battery Pack of E-motorcycle Conversion based on Activity Based Costing

Sofi Desi Susanti, Yuniaristanto Yuniaristanto, Wahyudi Sutopo, Rina Wiji Astuti

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: activity-based costing; battery pack; e-motorcycle conversion

Online: 28 July 2020 (13:55:20 CEST)

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