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Preprint ARTICLE | doi:10.20944/preprints201711.0166.v1

SWOT Analysis for Architectural and Structural Solutions Interaction Assessment in High-Rise Buildings Design

Jolanta Tamošaitienė, Ernestas Gaudutis

Subject: Engineering, Civil Engineering Keywords: high-rise buildings; architecture; structural solutions; interaction; SWOT analysis

Online: 26 November 2017 (12:45:01 CET)

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Working Paper REVIEW

Effective Human Resource Management In Project Management

Mehreen Sirshar, Rabbia Liaqat, Sadaf Siddique

Subject: Business, Economics And Management, Human Resources And Organizations Keywords: HRM; NPD; GHRDM; Guest Satisfaction Index

Online: 9 December 2019 (07:42:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints202006.0111.v1

A Novel Family of Quadrupole-Orbitrap Mass Spectrometers for a Broad Range of Analytical Applications

Jan-Peter Hauschild, Amelia Corinne Peterson, Erik Couzijn, Eduard Denisov, Denis Chernyshev, Christian Hock, Hamish Stewart, Ralf Hartmer, Dmitry Grinfeld, Christian Thoeing, Bastian Reitemeier, Arne Kreutzmann, Oliver Lange, Wilko Balschun, Aivaras Venckus, Sebastian Kanngiesser, Alexander Kholomeev, Gregor Quiring, Frank Czemper, Eloy Wouters, Michael Belford, Mathias Mueller, Jens Grote, Tabiwang N. Arrey, Julia Kraegenbring, Kerstin Strupat, Siegrun Mohring, Catharina Crone, Alexander Harder, Aaron Robitaille, Aaron Gajadhar, Khatereh Motamed, Yang Liu, Daniel Lopez Ferrer, Nicolaie Eugen Damoc, Angela Criscuolo, Kristina Srzentic, Ed George, Charles Yang, Ioanna Ntai, Amanda Souza, Andreas Wieghaus, Alexander Makarov

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Orbitrap mass spectrometry; high resolution; accurate mass

Online: 8 June 2020 (10:17:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201907.0217.v1

A Study on OpenFOAM's Overset Mesh Support Using Flow Past NACA 0018 Airfoil

Praveen Laws, Jaskaran Singh Saini, Ajit Kumar

Subject: Engineering, Mechanical Engineering Keywords: OpenFOAM; overset meshing; NACA 0018; high Reynolds number; CFD

Online: 18 July 2019 (11:29:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201812.0359.v1

Mechanical Behavior of Inconel 625 at Elevated Temperatures

Mauro M. de Oliveira, Antônio A. Couto, Gisele F. C. Almeida, Danieli A. P. Reis, Nelson B. de Lima, Renato Baldan

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: Inconel; high temperature; tensile test; creep; serrated; dynamic strain aging

Online: 31 December 2018 (09:41:56 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0439.v1

Meycauayan, an Industrial City in Bulacan, Philippines: Heavy Metal Pollution in Soil and Surface Sediments and Their Relationship to Environmental Indicators

Reymar Diwa, Custer Deocaris, Aileen Orbecido, Arnel Beltran, Edgar Vallar, Maria Cecilia Galvez, Lawrence Belo

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: heavy metals; MMORS, Meycauayan River; soil pollution; multivariate analysis; Sediment Quality Guidelines; Single Pollution Index

Online: 16 June 2021 (10:34:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0147.v1

The Factors Affecting Labour Productivity in the Construction of Prestressed Concrete Buildings in Ghana

Muhammad Akbar, Kojo Kumah Darkwah, Azka Amin, Pan Huali, Ou Guoqiang, Muhammad Asghar

Subject: Engineering, Automotive Engineering Keywords: Labour productivity; prestressed concrete floors; relative importance index (Smart-PLS. Ghana)

Online: 5 April 2021 (14:31:34 CEST)

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Preprint REVIEW | doi:10.20944/preprints202010.0179.v1

Explicit Treatment of Non Michaelis-Menten and Atypical Kinetics in Early Drug Discovery

Bharath Srinivasan

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: Non Michaelis-Menten Kinetics; High-throughput screening; allostery; cooperativity; processive kinetics; distributive kinetics; single-molecule; auto-catalytic; drug discovery

Online: 8 October 2020 (13:34:16 CEST)

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Preprint REVIEW | doi:10.20944/preprints201811.0162.v1

A Review of Geological Applications of High-Spatial-Resolution Remote Sensing Data

Chunming Wu, Xiao Li, Weitao Chen, Xianju Li

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: High-spatial-resolution images; Geology; Deep learning; Remote sensing

Online: 7 November 2018 (13:17:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints201912.0351.v1

Simulation of Turbulent Flow around a Generic High-Speed Train Using Hybrid Models of RANS Numerical Method with Machine Learning

Alireza Hajipour, Arash Mirabdolah Lavasani, Mohammad Eftekhari Yazdi, Amir Mosavi, Shahaboddin Shamshirband, Kwok-Wing Chau

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: machine learning; aerodynamics; high-speed train; hybrid machine learning; Prediction Turbulence model; deep learning

Online: 26 December 2019 (05:23:14 CET)

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Preprint REVIEW | doi:10.20944/preprints201608.0045.v1

Risks of Climate Change on the Singapore-Malaysia High Speed Rail System

Sazrul Leena Binti Sa’adin, Sakdirat Kaewunruen, David Jaroszweski

Subject: Engineering, Civil Engineering Keywords: railway infrastructure; high-speed rail; tracks; risk; management and monitoring; climate change; global warming; adaptation; operational readiness

Online: 5 August 2016 (05:11:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0440.v1

COVID-19: A Drug Repurposing and Biomarker Identification by Using Comprehensive Gene-Disease Associations through Protein-Protein Interaction Network Analysis

Suresh Kumar

Subject: Biology And Life Sciences, Virology Keywords: COVID-19; SARS-CoV-2; 2019-nCoV; novel corona virus; drug repurposing; chloroquine; high-risk group; asymptomatic

Online: 30 March 2020 (07:24:16 CEST)

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COVID-19 (2019-nCoV) is a pandemic disease with an estimated mortality rate of 3.4% (estimated by the WHO as of March 3, 2020). Until now there is no antiviral drug and vaccine for COVID-19. The current overwhelming situation by COVID-19 patients in hospitals is likely to increase in the next few months. About 15 percent of patients with serious disease in COVID-19 require immediate health services. Rather than waiting for new anti-viral drugs or vaccines that take a few months to years to develop and test, several researchers and public health agencies are attempting to repurpose medicines that are already approved for another similar disease and have proved to be fairly effective. This study aims to identify FDA approved drugs that can be used for drug repurposing and identify biomarkers among high- risk and asymptomatic groups. In this study gene-disease association related to COVID-19 reported mild, severe symptoms and clinical outcomes were determined. The high-risk group was studied related to SARS-CoV-2 viral entry and life cycle by using Disgenet and compared with curated COVID-19 gene data sets from the CTD database. The overlapped gene sets were enriched and the selected genes were constructed for protein-protein interaction networks. Through interactome, key genes were identified for COVID-19 and also for high risk and asymptomatic groups. The key hub genes involved in COVID-19 were VEGFA, TNF, IL-6, CXCL8, IL10, CCL2, IL1B, TLR4, ICAM1, MMP9. The identified key genes were used for drug-gene interaction for drug repurposing. The chloroquine, lenalidomide, pentoxifylline, thalidome, sorafenib, pacitaxel, rapamycin, cortisol, statins were proposed to be probable drug repurposing candidates for the treatment of COVID-19. However, these predicted drug candidates need to be validated through randomized clinical trials. Also, a key gene involved in high risk and the asymptomatic group were identified, which can be used as probable biomarkers for early identification.

Preprint ARTICLE | doi:10.20944/preprints201610.0055.v1

Numerical Simulation of Hypervelocity Impact FEM-SPH Algorithm Based on Large Deformation of Material

Aimin Yang, Jinze Li, Hengheng Qu, Yuhang Pan, Yanhong Kang, Yuzhu Zhang

Subject: Computer Science And Mathematics, Analysis Keywords: finite element method; smoothed particle method; fem-sph algorithm; large deformation; super high speed collision

Online: 14 October 2016 (11:05:45 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0096.v1

Evaluating the Impact of Corporate Governance on Firm Performance Using Board Index

Basil Okoth, Metin Coşkun

Subject: Business, Economics And Management, Finance Keywords: corporate governance; EVA; board of directors; board index; EVA

Online: 9 August 2016 (11:51:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201807.0252.v1

An Innovative Bidirectional DC-AC Converter to Improve Power Quality in a Grid-Connected Microgrid

Sebastien Bissey, Sebastien Jacques, Cedric Reymond, Jean-Charles Le Bunetel

Subject: Engineering, Electrical And Electronic Engineering Keywords: Smart home electricity management system; bidirectional DC-AC converter; high power quality; high efficiency.

Online: 14 July 2018 (20:25:57 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202006.0289.v1

Estimation of Time-Dependent Reproduction Number for Global COVID-19 Outbreak

Tatiana Petrova, Dmitry Soshnikov, Andrey Grunin

Subject: Computer Science And Mathematics, Computational Mathematics Keywords: reproduction number; infectious disease epidemiology; COVID-19; epidemic modelling; mobility index

Online: 24 June 2020 (09:03:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201701.0019.v1

The BCC/B2 Morphologies in AlxNiCoFeCr High-Entropy Alloys

Yue Ma, Beibei Jiang, Chunling Li, Qing Wang, Chuang Dong, Peter K Liaw, Fen Xu, Lixian Sun

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: high-entropy alloys; Al-Ni-Co-Fe-Cr alloys; microstructure; precipitation morphology; mechanical property

Online: 4 January 2017 (10:30:17 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0148.v1

Densities and Refractive Indices of Potassium Carbonate -Based Deep Eutectic Solvents with Dual Hydrogen Bond Donors at Several Temperatures (293.15 to 343.15 K)

Hosein Ghaedi, Muhammad Ayoub, Suriati Sufian, Azmi Mohd Shariff, Bhajan Lal

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: DES; TDES; salt; HBD; density; refractive index

Online: 19 May 2017 (16:06:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201701.0078.v1

High Step-up Voltage Gain Converter with Ripple-free Input Current for Renewable Energy Sources

Zhangyong Chen, Yong Chen

Subject: Engineering, Electrical And Electronic Engineering Keywords: input current ripple-free; boost converter; coupled-inductor; voltage-doubler cell; passive lossless clamp circuits; high voltage gain; renewable energy

Online: 17 January 2017 (11:10:36 CET)

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Preprint ARTICLE | doi:10.20944/preprints201803.0108.v1

Forest Fire Danger Index Based on Static and Dynamic Parameters Using Satellite Datasets

Suresh Babu KV, Arijit Roy, Ramachandra Prasad P

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Forest fire danger index; MODIS; MOD11; MOD09; MOD14

Online: 14 March 2018 (15:38:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0274.v2

Ultra-Low-Loss Silicon Waveguides for Heterogeneously Integrated Silicon/III-V Photonics

Minh Tran, Duanni Huang, Tin Komljenovic, Jonathan Peters, Aditya Malik, John Bowers

Subject: Physical Sciences, Optics And Photonics Keywords: ultra-low-loss waveguide; silicon photonics; heterogeneous integration; narrow linewidth lasers; high Q resonators.

Online: 16 July 2018 (15:14:32 CEST)

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Preprint REVIEW | doi:10.20944/preprints202109.0364.v1

Seed Priming Technology as a Key Strategy to Increase Crop Plant Production under Adverse Environmental Conditions

Daniel Garcia, Samiah Arif, Yinglei Zhao, Shuo Zhao, Lin Chau Ming, Danfeng Huang

Subject: Biology And Life Sciences, Horticulture Keywords: stress tolerance; biological mechanisms; biotic/Abiotic stress; hybrid priming; high-quality seeds

Online: 21 September 2021 (14:02:07 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints202101.0366.v1

High Volume Injection (Hydrodissection) for Tarsal Tunnel Syndrome Using Peripheral Nerve Stimulation: Treatment Protocol

Ian Reilly, Akram Uddin

Subject: Medicine And Pharmacology, Immunology And Allergy Keywords: tarsal tunnel syndrome; compression neuropathy; high volume injection; hydrodissection; hydrodilatation; nerve stimulator

Online: 19 January 2021 (09:00:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints201911.0377.v1

Development of a 3D-Printable Ultra-High Performance Fiber-Reinforced Concrete for Digital Construction

Ravendran Arunothayan, Behzad Nematollahi, Ravi Ranade, Shin Hau Bong, Jay Sanjayan

Subject: Engineering, Architecture, Building And Construction Keywords: ultra-high-performance fiber-reinforced concrete (UHPFRC); mechanical properties; extrusion; 3D concrete printing (3DCP)

Online: 29 November 2019 (10:45:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0253.v1

Export competitiveness: Assessment through the Balassa index (the case of Armenia)

Arpine Sargsyan

Subject: Business, Economics And Management, Economics Keywords: Trade, competitiveness, export, index, assessment, method, data, revealed, comparative advantage, development, diversification, centralization

Online: 15 June 2018 (12:27:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0120.v1

Large Scale Screening of Southern African Plant Extracts for the Green Synthesis of Gold Nanoparticles using Microtitre-Plate Method

Abdulrahman M. Elbagory, Christopher N. Cupido, Mervin Meyer, Ahmed Hussein

Subject: Chemistry And Materials Science, Other Keywords: green nanotechnology; gold nanoparticles; biosynthesis; high resolution transmission electron microscopy; Cape flora

Online: 11 August 2016 (09:53:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202005.0479.v1

Open Source High-Temperature RepRap for 3-D Printing Heat-Sterilizable PPE and Other Applications

Noah G. Skrzypczak, Nagendra G. Tanikella, Joshua M. Pearce

Subject: Engineering, Mechanical Engineering Keywords: open source; open hardware; COVID-19; medical hardware; RepRap; 3-D printing; open source medical hardware; high temperature 3-D printing; additive manufacturing; ULTEM; polycarbonate

Online: 31 May 2020 (16:18:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0224.v2

Propeller Cavitation in Non-Uniform Flow and Correlation with the Near Pressure Field

Francisco Alves Pereira, Fabio Di Felice, Francesco Salvatore

Subject: Engineering, Marine Engineering Keywords: propeller; cavitation pattern; unsteady cavitation; induced pressure fluctuations; high-speed visualization; volume acceleration; cavitation-pressure correlations

Online: 5 September 2016 (09:37:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201910.0137.v1

An Efficient and High-Resolution Topology Optimization Method Based on Convolutional Neural Networks

Liang Xue, Jie Liu, Guilin Wen, Hongxin Wang

Subject: Computer Science And Mathematics, Mathematics Keywords: topology optimization; convolutional neural network; high-resolution

Online: 12 October 2019 (03:56:19 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201607.0038.v1

Exploring The Magnetic Field Configuration Close To The Central Engines Using GMVA

Bindu Rani, Thomas Krichbaum, J. Hodgson, Shoko Koyama, Anton J. Zensus, Alan Marscher, Svetlana Jorstad, Lars Fuhramnn

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: active galaxies; BL Lacertae object: BL Lac; jets; GMVA: high-resolution VLBI; magnetic field; polarization

Online: 15 July 2016 (10:06:48 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201701.0117.v1

Transcriptomic and Metabolomics Analyses Show that High Carbohydrate Induces Fatty Liver in Blunt Snout Bream (Megalobrama amblycephala)

Wassana Prisingkorn, Panita Prathomya, Han Liu, Fang-Yu Deng, Yu-Hua Zhao, Wei-Min Wang

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: blunt snout bream; high carbohydrate; transcriptome; metabolomics; insulin resistance; fatty liver disease

Online: 26 January 2017 (03:52:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202003.0420.v1

Presentation a New Method for Determining of Bridge Condition Index by Using Analytical Hierarchy Process

Saeid Darban, Hosein Ghasemzadeh Tehrani, Nader Karballaeezadeh

Subject: Engineering, Civil Engineering Keywords: transportation infrastructure; bridge management system; concrete bridges; bridge condition index; analytical hierarchy process; expert system

Online: 29 March 2020 (04:55:22 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201608.0072.v1

Batch Fermentation Options for High Titer Bioethanol Production from a SPORL Pretreated Douglas-fir Forest Residue without Detoxification

Mingyan Yang, Hairui Ji, J.Y. ZHU

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: forest residue; pretreatment; liquefaction; enzymatic hydrolysis/saccharification; fermentation; high titer bioethanol; detoxification

Online: 8 August 2016 (10:39:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201909.0322.v1

Comparative Analysis of Compiler Performances and Program Efficiency

Paul Tawo Bukie, Chinedu Leonard Udeze, Iwara Ofem Obono, Edim Bassey Edim

Subject: Computer Science And Mathematics, Computer Science Keywords: java virtual machine (jvm); high level programming languages; high performance computing (hpc); php framework; compiler

Online: 29 September 2019 (05:01:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0136.v1

Structure and Composition of Plant Vegetation in Urban Area of Dhaka South City Corporation, Bangladesh

Md. Shahariar Jaman, Ishrat Jahan, Mahbuba Jamil, Md. Golam Jilani Helal, Md. Shariful Islam, Md. Javed Azad, Md. Forhad Hossain

Subject: Environmental And Earth Sciences, Environmental Science Keywords: diameter at breast height; basal area; frequency; density; important value index

Online: 21 November 2017 (03:43:54 CET)

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Preprint REVIEW | doi:10.20944/preprints202010.0292.v1

A Critical Review of the Material Characteristics of Additive Manufactured IN718 for High Temperature Application

Ching Kiat Yong, Gregory J. Gibbons, Geoff West

Subject: Chemistry And Materials Science, Biomaterials Keywords: laser powder bed fusion; Inconel 718; high temperature; material characterisation; laser shock peening

Online: 14 October 2020 (09:11:10 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/preprints201703.0044.v1

Effect of Constitutive Equations on Prediction Accuracy for Springback in Cold Stamping of TRIP1180

Ki-Young Seo, Jae-Hong Kim, Hyun-Seok Lee, Ji Hoon Kim, Byung-Min Kim

Subject: Engineering, Mechanical Engineering Keywords: advanced high strength steel; yield function; hardening model; springback; deformation mode

Online: 8 March 2017 (04:51:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints201607.0023.v1

Observing---and Imaging---Active Galactic Nuclei with the Event Horizon Telescope

Vincent Fish, Kazunori Akiyama, Katherine Bouman, Andrew Chael, Michael Johnson, Sheperd Doeleman, Lindy Blackburn, John Wardle, William Freeman

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: galaxies: jets---Galaxy: center---techniques: high angular resolution---techniques: image processing---techniques: interferometric

Online: 12 July 2016 (09:41:39 CEST)

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Preprint REVIEW | doi:10.20944/preprints201701.0121.v1

Development of Propulsion Inverter Control System for High-Speed Maglev Based on LS-LSM

Jeong-Min Jo, Jin-Ho Lee, Young-Jae Han, Chang-Young Lee, Kwan-Sub Lee

Subject: Engineering, Electrical And Electronic Engineering Keywords: high speed maglev; long-stator synchronous motor; propulsion inverter control system position estimator

Online: 26 January 2017 (08:58:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints202002.0404.v1

Characterization of Ionospheric Scintillation Index over Low Latitude: Nepal Region

Kutubuddin Ansari, Tae-Suk Bae, Punyawi Jamjareegulgarn, Shakera Khan, Soo-Hyeon Lim

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Ionosphere; Nepal; Scintillation index; Storm days; Quiet days

Online: 27 February 2020 (12:08:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints201611.0118.v1

Some Algebraic Polynomials and Topological Indices of Octagonal Network

Young Chel Kwun, Waqas Nazeer, Mobeen Munir, Shin Min Kang

Subject: Chemistry And Materials Science, Theoretical Chemistry Keywords: M-polynomial; Zagreb polynomial; topological index; network

Online: 24 November 2016 (01:53:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints202202.0236.v1

COVID-19 (2020) Impact on Air Quality of the State of Kuwait

Jasem Albanai, Maryam Shehab, Arie Vatresia, Hassan Al-Dashti

Subject: Environmental And Earth Sciences, Environmental Science Keywords: Kuwait; Covid-19; Air quality Index; GeoHealth; Kernel Density

Online: 18 February 2022 (12:27:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0077.v1

Potential and Limits of Retrieving Conifer Leaf Area Index Using Smartphone Camera Sensors

Yonghua Qu, Jian Wang, Jinling Song, Jindi Wang

Subject: Engineering, Control And Systems Engineering Keywords: leaf area index; smartphone camera sensor; conifer forest; canopy gap fraction

Online: 17 January 2017 (09:59:36 CET)

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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/preprints201703.0050.v1

Preparation and Evaluation of an Elusive Polymorph of Mefenamic Acid by High Pressure Techniques

Nasir Abbas, Iain Oswald, Colin R. Pulham

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: mefenamic acid; diamond anvil cell; high-pressure; polymorphism; high-pressure crystallization; non-steroidal anti-inflammatory drugs

Online: 8 March 2017 (08:58:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints201610.0074.v1

Novel Step-up DC-to-DC Converter with Isolated Transformer and Switched-Clamp Capacitor Techniques for Renewable Systems

Yong-Seng Wong, Jiann-Fuh Chen, Kuo-Bin Liu

Subject: Engineering, Electrical And Electronic Engineering Keywords: high voltage gain; switch-clamp capacitor; DC–DC converter; renewable energy

Online: 18 October 2016 (09:45:49 CEST)

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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/preprints201611.0029.v1

Categorical Forecast of Precipitation Anomaly Using the Standardized Precipitation Index SPI

Leszek Łabędzki

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: precipitation deficit; precipitation surplus; standardized precipitation index SPI; forecast; verification

Online: 4 November 2016 (13:39:29 CET)

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Preprint REVIEW | doi:10.20944/preprints202009.0395.v1

V483a – an Emerging Mutation Hotspot of Sars-Cov-2

Omar Ashwaq, Pratibha Manickavasagam, Sk Manirul Haque

Subject: Biology And Life Sciences, Virology Keywords: Spike protein, V483A, substitution mutation, virus-host cell interaction, high transmission, infectivity.

Online: 17 September 2020 (10:43:02 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0122.v1

Performance Enhancement Techniques for Patch Antennas of Small Satellites

Zizung Yoon, Mayank Mayank, Enrico Stoll

Subject: Engineering, Electrical And Electronic Engineering Keywords: satellite communication, antenna optimization, high gain antenna

Online: 3 March 2021 (09:59:04 CET)

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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/preprints201610.0081.v1

Development and Application of a Wireless Sensor for Space Charge Density Measurement in an Ultra-High-Voltage, Direct-Current Environment

Encheng Xin, Yong Ju, Haiwen Yuan

Subject: Engineering, Control And Systems Engineering Keywords: Ultra High-voltage direct-current (UHVDC); space charge density; energy consumption; wireless communication; Zigbee

Online: 20 October 2016 (06:02:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0009.v1

Prediction of Vehicle Crashworthiness Parameters Using Piecewise Lumped Parameters and Finite Element Models

Bernard B. Munyazikwiye, Dmitry Vysochinskiy, Mikhail Khadyko, Kjell G. Robbersmyr

Subject: Engineering, Automotive Engineering Keywords: piecewise lumped parameters; finite element analysis; dynamic crush; acceleration severity index

Online: 3 September 2018 (04:57:24 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0200.v1

Comparison of Gender, Age, and Body Mass Index Levels for Spatiotemporal Parameters of Bilateral Gait Pattern

Turki S. Abualait, Mohammad Ahsan

Subject: Medicine And Pharmacology, Orthopedics And Sports Medicine Keywords: spatiotemporal parameters; gait; gender; age; Body Mass Index

Online: 9 September 2020 (07:12:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0157.v1

A CNN-Based Fusion Method for Feature Extraction from Sentinel Data

Giuseppe Scarpa, Massimiliano Gargiulo, Antonio Mazza, Raffaele Gaetano

Subject: Engineering, Electrical And Electronic Engineering Keywords: Coregistration; pansharpening; multi-sensor fusion; multitemporal images; deep learning; normalized difference vegetation index (NDVI)

Online: 21 December 2017 (17:10:23 CET)

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Preprint TECHNICAL NOTE | doi:10.20944/preprints201708.0107.v1

Alienness: Rapid Detection of Candidate Horizontal Gene Transfers across the Tree of Life

Corinne Rancurel, Ludovic Legrand, Etienne GJ Danchin

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: horizontal gene transfer; alien index; lateral gene transfer

Online: 31 August 2017 (15:03:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0099.v1

Advanced Glycation Endproducts form During Ovalbumin Digestion in the Presence of Fructose

Alejandro Gugliucci, Yasmin Bains, Russell Caccavello

Subject: Medicine And Pharmacology, Dietetics And Nutrition Keywords: ovalbumin, allergy; advanced glycation; fructose; fructositis; receptor for advanced glycation end products; inflammation; asthma; chlorogenic acid; Ilex paraguariensis; high fructose corn syrup

Online: 28 February 2017 (10:41:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints201703.0216.v1

A Dysbiotic Mycobiome Dominated by Candida albicans is Identified within Oral Squamous Cell Carcinomas

Manosha Perera, Nezar Noor Al-hebshi, Irosha Perera, Deepak Ipe, Glen Ulett, David J. Speicher, Tsute Chen, Newell W. Johnson

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: 18S rRNA; fungi; mycobiome; carcinoma; High-Throughput Nucleotide Sequencing; microbiome; mouth; squamous cell

Online: 30 March 2017 (05:37:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201801.0296.v1

Why the Correlation Between Oil Prices and US Dollar Exchange Rate Is Time-varying?----Explanations Based on Role of Key Mediators

Xiangyun Xu, Jia Liao, Yu Shi

Subject: Business, Economics And Management, Finance Keywords: crude oil price; dollar index; time-varying; key mediating factor

Online: 31 January 2018 (15:52:35 CET)

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Preprint REVIEW | doi:10.20944/preprints202104.0077.v1

Agro-Industrial Avocado (Persea americana) Waste Biorefinery

Anthony Mora-Sandí, Abigail Ramírez-González, Luis Castillo-Henríquez, Mary Lopretti-Correa, José Roberto Vega-Baudrit

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: biorefinery; bioprocess; agro-industry; high-value products; Avocado

Online: 2 April 2021 (15:35:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201912.0103.v1

Evaluation of the Geometallurgical Indexes for Comminution Properties at Sarcheshmeh Porphyry Copper Mine

Saiwan Mohammadi, Bahram Rezai, Aliakbar Abdollahzadeh, Sayed Mojtaba Mortazavi

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: geometallurgy; geometallurgical index; ore variability; bond work index; comminution; Sarcheshmeh

Online: 8 December 2019 (17:15:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints201704.0068.v1

Total Factor Energy Efficiency of China’s Industrial Sector: A Stochastic Frontier Analysis

Xiaobo Shen, Boqiang Lin

Subject: Business, Economics And Management, Economics Keywords: malmquist productivity index; total factor energy efficiency; stochastic input distance function; China’s industry

Online: 13 April 2017 (04:35:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201806.0426.v1

When water runs dry and temperature heats up: Understanding the mechanisms in rice tolerance to drought and high temperature stress conditions

Roel Rabara, Joseph Msanne, Marilyn Ferrer, Supratim Basu

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: rice, abiotic stress, high temperature, drought, physiological responses, molecular mechanisms, systems biology

Online: 26 June 2018 (15:30:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0024.v1

Inflammatory Bacteriome Featuring Fusobacterium nucleatum and Pseudomonas aeruginosa Identified in Association with Oral Squamous Cell Carcinoma

Nezar Noor Al-hebshi, Akram Thabet Nasher, Mohamed Yousef Maryoud, Husham E. Homeida, Tsute Chen, Ali Mohamed Idris, Newell W. Johnson

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: 16S rRNA; bacteria; bacteriome; carcinoma; High-Throughput Nucleotide Sequencing; microbiome; mouth; squamous cell

Online: 6 March 2017 (04:47:15 CET)

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Preprint COMMUNICATION | doi:10.20944/preprints201807.0221.v1

Combination High Energy with Stability: Polynitrogen Explosives N14 and N18

Jifeng Chen, Yi Yu, Yuchuan Li, Siping Pang

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: N14; N18; density functional theory (DFT); high energy; stability

Online: 13 July 2018 (03:35:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201706.0062.v1

Relationship of Google Scholar Versions and Paper Citations

Marjan Mohammadjafari, Hadi Salehi, Kaveh Bakhtiyari, Nader Ale Ebrahim, Mahmoud Danaee, Masoud Shakiba, Masoomeh Shahbazi-Moghadam, Azam Zavvari

Subject: Social Sciences, Library And Information Sciences Keywords: h-index; citations; published version; Scopus database; highly cited paper; bibliometrics

Online: 14 June 2017 (06:07:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201712.0127.v1

Assessing Vulnerability of Maasai Pastoralist in Kenya to Climate Change and Variability

Ayodotun Bobadoye, William Ogara, Gilbert Ouma, Joshua Onono

Subject: Environmental And Earth Sciences, Environmental Science Keywords: vulnerability index; Maasai pastoralists; principal component analysis; climate change

Online: 18 December 2017 (17:21:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints201801.0019.v1

A Model of Extracting Building from High Resolution Remote Sensing Image Based on Bayesian Convolutional Neural Networks

Xiaoxia Yang , Chengming Zhang, Shuai Gao, Fan Yu, Dejuan Song, Qingdi Wei, Yan Chen, Shouyi Wang

Subject: Computer Science And Mathematics, Analysis Keywords: high resolution remote sensing image; convolutional neural networks; full convolution networks; Bayesian convolutional neural networks; building extraction; conditional probability density function

Online: 3 January 2018 (04:46:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0076.v1

Leverage and Volatility Feedback Effects and Conditional Dependence Index: A Nonparametric Study

Yiguo Sun, Ximing Wu

Subject: Business, Economics And Management, Finance Keywords: conditional dependence index; Kendall's Tau; leverage effect; nonparametric copula; tail dependence index; volatility feedback effect

Online: 6 April 2018 (11:17:36 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201707.0072.v1

Three-Dimensional Modeling Interaction of Shock Wave with Fin at Mach 5

Amjad A. Pasha

Subject: Engineering, Mechanical Engineering Keywords: high speed flows; shock wave; turbulent boundary layer; shock-unsteadiness; separation bubble; turbulence modeling; single fin

Online: 26 July 2017 (07:48:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0088.v2

Plasmonic Refractive Index Sensor with High Figure of Merit Based on Concentric-Rings Resonator

Zhaojian Zhang, Junbo Yang, Xin He, Jingjing Zhang, Jie Huang, Dingbo Chen, Yunxin Han

Subject: Physical Sciences, Optics And Photonics Keywords: plasmonic sensor; high figure of merit; concentric double rings resonator

Online: 20 December 2017 (10:07:32 CET)

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Preprint ARTICLE | doi:10.20944/preprints201704.0163.v1

A New Health Assessment Index of Tunnel Lining Based on the Digital Inspection of Surface Cracks

Xuezhen Wu, Yujing Jiang, Jianhua Wang, Kusaba Masaya, Tetsuya Taniguchi, Takahide Yamato

Subject: Engineering, Civil Engineering Keywords: tunnel lining; health assessment; fractal dimension; tunnel-lining crack index; digital inspection test; field test

Online: 26 April 2017 (05:59:58 CEST)

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Preprint CONCEPT PAPER | doi:10.20944/preprints201702.0053.v1

Market Spread an Indicator of Systemic Risk in India

Subhash Karmakar, Gautam Bandyopadhyay

Subject: Business, Economics And Management, Finance Keywords: Systemic risk; Systemically Important Firms(SIFs); Stock Price; Stock Price (Close); Stock Price (Open); Stock Price: Bid; Stock Price: Ask; Stock Price: Spread; Joint Probability of Distress(JPoD); Banking Stability Index (BSI); Co-Risk Model

Online: 15 February 2017 (10:40:33 CET)

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Preprint REVIEW | doi:10.20944/preprints201611.0120.v1

Pancreatic Neuroendocrine Neoplasms: Basic Biology, Current Treatment Strategies and Prospects for the Future

Akihiro Ohmoto, Hirofumi Rokutan, Shinichi Yachida

Subject: Medicine And Pharmacology, Oncology And Oncogenics Keywords: pNENs; 2010 WHO classification; Ki-67 index; mitotic count; pNEC; tumor differentiation; whole-exome sequence data; everolimus; sunitinib; platinum regimen

Online: 24 November 2016 (10:59:33 CET)

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Preprint ARTICLE | doi:10.20944/preprints201705.0166.v1

Bile acid detoxifying enzymes limit susceptibility to liver fibrosis in female SHRSP5/Dmcr rats fed with a high-fat-cholesterol diet

Husna Yetti, Hisao Naito, Yuan Yuan, Xiaofang Jia, Yumi Hayashi, Hazuki Tamada, Kazuya Kitamori, Katsumi Ikeda, Yukio Yamori, Tamie Nakajima

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: constitutive androstene receptor; cytochrome P450, fibrosis; gender difference; high-fat-cholesterol (HFC) diet; necrosis; stroke-prone spontaneously hypertensive 5/Dmcr rats; sulfotransferase, pregnane X receptor; UGP-glucuronosyltransferase

Online: 23 May 2017 (07:54:46 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202003.0232.v1

Marketing Constraints among Smallholder Farmers in South Africa: An Overview of Potato Market Outlets in Lusikisiki Township

Christopher Ugochukwu Nwafor

Subject: Business, Economics And Management, Marketing Keywords: cooperatives; crop marketing index; municipality; smallholder-farmer; supermarkets; vendors

Online: 15 March 2020 (01:23:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0105.v1

Mapping Built-Up Land with High Accuracy Using Fourier Transformation and Temporal Correction

Jinzhu Wang, Michalis Hadjikakou, Brett Bryan

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Built-up land; Fourier transformation; high-accuracy mapping; temporal correcti

Online: 4 December 2020 (11:58:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints201704.0062.v1

Prognostic Significance of High Survivin Expression in Patients with Gastrointestinal Cancer: A Meta-Analysis

Pingping Xu, Jiajia Lin, Qi Lin, Dexiang Zhu, Wentao Tang, Zhengchuan Niu, Mi Jian, Yanru Wang, Chunmin Liang, Jianmin Xu

Subject: Medicine And Pharmacology, Gastroenterology And Hepatology Keywords: survivin; high expression; gastrointestinal cancer; prognostic

Online: 11 April 2017 (10:51:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201701.0091.v1

Shock Pulse Index and Its Application in the Fault Diagnosis of Rolling Element Bearings

Peng Sun, Yuhe Liao, Jing Lin

Subject: Engineering, Mechanical Engineering Keywords: fault diagnosis; shock pulse index; maximum correlated kurtosis deconvolution; teager energy operator; rolling element bearings

Online: 20 January 2017 (04:12:25 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0209.v1

UAV Remote Sensing for Biodiversity Monitoring: Are Forest Canopy Gaps Good Covariates?

Martin B. Bagaram, Diego Giuliarelli, Gherardo Chirici, Francesca Giannetti, Anna Barbati

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Unmanned Aerial systems (UAS); , RGB high resolution imagery; forest canopy gaps; understorey; vertical species diversity; microhabitat-bearing trees; contrast split segmentation; drone

Online: 12 July 2018 (05:36:22 CEST)

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Forest canopy gaps are important for the ecosystem dynamics. Depending on tree species, small canopy openings might be also associated to intra-crown porosity and to space between crowns. Yet, little is known on the relationships between the fine-scaled pattern of canopy openings and biodiversity features. This research explored the possibility of i)- mapping forest canopy gaps from a very high resolution orthomosaic (10 cm), processed from a versatile imaging platform such as unmanned aerial vehicles (UAV), ii)- to derive patch metrics that can be tested as covariates of variables of interest for forest biodiversity monitoring. This is attempted in a test area of 240 ha covered by temperate deciduous forest types in Central Italy and containing 50 forest inventory plots of about 530 m². Correlation and linear regression techniques were used to explore relationships between patch metrics and understorey (density, development and species diversity) or forest habitat biodiversity variables (density of micro-habitat bearing trees, vertical species profile, tree species diversity). The results revealed that small openings in the canopy cover (75% smaller than 7 m²) can be faithfully extracted from UAV RGB imagery, using the red band and contrast split segmentation. Highest correlations were observed in the mixed forest (beech and turkey oak), while beech forest had the poorest ones and turkey oak forest displayed intermediate results. Moderate to strong linear relationships were found between gap metrics and understorey variables in mixed forest type, with adjusted R² from linear regression ranging from 0.52 to 0.87. Equally good results, in the same forest types, were observed for forest habitat biodiversity variables (0.52<adjusted R²<0.79) with highest values found for density of trees with microhabitats and vertical species profile. In conclusion, this research highlights that UAV remote sensing can potentially provide covariate surfaces of variables of interest for forest biodiversity monitoring, conventionally collected in forest inventory plots. By integrating the two sources of data, these variables can be mapped over small forest areas with satisfactory levels of accuracy, at a much higher spatial resolution than would be possible by field-based forest inventory solely.

Preprint ARTICLE | doi:10.20944/preprints201807.0262.v1

On the Computation of the Dispersion Diagram of Symmetric Periodic One-dimensional Structures

Francisco Mesa, Raul Rodriguez-Berral, Francisco Medina

Subject: Engineering, Electrical And Electronic Engineering Keywords: periodic structures; dipersion relation; high-order coupling; glide symmetry

Online: 16 July 2018 (08:36:58 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201703.0189.v1

The Index System for the Development Level Evaluation of Regional Construction Industrialization: a Case Study in Jiangsu, China

Ping Liu, Qiming Li, Liangliang Song, Ruoyu Jia

Subject: Engineering, Civil Engineering Keywords: construction industrialization; dimensions; index system; evaluation

Online: 24 March 2017 (11:21:31 CET)

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Preprint REVIEW | doi:10.20944/preprints201901.0066.v1

Impacts of Salinity Intrusion in Community Health: A Review of Effectiveness of Adaptation Measures to Decrease Drinking Water Sodium (DWS) from Coastal Areas of Bangladesh

Mashura Shammi, Md. Mostafizur Rahman, Md. Bodrud-Doza

Subject: Environmental And Earth Sciences, Environmental Science Keywords: salinity; drinking water sodium (DWS), high blood pressure; maternal health; pond sand filter (PSF)

Online: 8 January 2019 (11:26:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints201710.0158.v1

A Practical Approach Deriving Optimal Unit Hydrograph from Noisy Runoff in absence of Rainfall Data

Kee-Won Seong

Subject: Engineering, Civil Engineering Keywords: root selection method; unit hydrograph; Savitzky-Golay filter; Nash-Sutcliffe index

Online: 24 October 2017 (11:22:37 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201702.0042.v1

Fundamental Study on the Development of Sprayed High Performance Fiber Reinforced Cementitious Composites for Impact-Blast Resistant

Yun-Wang Choi, Byung-Keol Choi, Sung-Rok Oh, Man-Seok Park

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: high volume fly ash, high fluidity concrete, early strength, field application

Online: 13 February 2017 (11:44:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201807.0488.v1

Heartbeat Abnormality Detection using Machine Learning Models and Rate Variability (HRV) Data

Pratik Vyas, Diptangshu Pandit

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: heart rate variability; machine learning; abnormality detection; window shifting; high accuracy prediction

Online: 25 July 2018 (14:22:10 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0576.v1

Investigation of Heat and Pressure Treatments on Almond Protein Stability and Immunoreactivity after Simulated Human Digestion

Elisabetta De Angelis, Simona L. Bavaro, Graziana Forte, Rosa Pilolli, Linda Monaci

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: almond; thermal/pressure treatment; autoclave; food allergens; high resolution mass spectrometry (HR-MS); immunoreactivity reduction; in vitro digestion

Online: 29 September 2018 (04:23:32 CEST)

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Almond is worldwide consumed and renowned as a valuable healthy food. In spite of this, it is also a potent source of allergenic proteins able to trigger several mild to life-threatening immunoreactions. Food processing proved to alter biochemical characteristics of proteins, thus affecting the respective allergenicity. In this paper we investigated the effect of autoclaving, preceded or not by a hydration step, on the biochemical and immunological properties of almond proteins. Any variation in the stability and immunoreactivity of almond proteins extracted from the treated materials, were evaluated by total protein quantification, ELISA assay and protein profiling by electrophoresis-based separation (SDS-PAGE). The autoclaving alone was found to weakly affect almond proteins stability, despite what observed for the combination of hydration and autoclaving, which resulted in a loss of approximately 70% of total protein content compared to untreated sample, and in a final negligible immunoreactivity, as well. The final SDS-PAGE protein pattern recorded for almonds hydrated and autoclaved disclosed significant changes. In addition, the same samples were further submitted to in vitro simulated gastro-duodenal (GI) digestion to evaluate potential changes induced by these processing on allergens digestibility. Digestion products were identified by HPLC-HRMS/MS analysis followed by software-based data mining, and complementary information were provided by analyzing the proteolytic fragments lower that 6 kDa in size. The autoclave based treatment was found not to alter the allergens digestibility, whereas an increased susceptibility to proteolytic action of digestive enzymes was observed in almonds subjected to the combination of prehydration and autoclaving. Finally, the residual immunoreactivity of the GI resistant peptides was investigated in-silico by bioinformatic tools, confirming that by following both approaches, no epitopes survived the almond digestion, thus demonstrating the potential effectiveness of these treatments to reduce almond allergenicity.

Preprint ARTICLE | doi:10.20944/preprints201806.0195.v1

Impact of Shear Zone on Rockburst in the Deep Neelum-Jehlum Hydropower Tunnel: A Numerical Modeling Approach

Abdul Muntaqim Naji, Hafeezur Rehman, Zaka Emad, HanKyu Yoo

Subject: Engineering, Civil Engineering Keywords: deep tunnel, high stresses, shear zone, rockburst, energy released

Online: 12 June 2018 (14:12:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201612.0115.v1

Discrete Particle Method for Simulating Hypervelocity Impact Phenomena

Erkai Watson, Martin O. Steinhauser

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: discrete element method; hypervelocity impact; debris cloud; fragmentation; space debris; multiscale modeling; computer simulation; high performance computing

Online: 23 December 2016 (10:21:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints201701.0101.v1

Predicting Some Physicochemical Properties of Octane Isomers: A Topological Approach Using ev-Degree and ve-Degree Zagreb Indices

Süleyman Ediz

Subject: Computer Science And Mathematics, Applied Mathematics Keywords: ev-degree Zagreb index; octane isomers; QSPR; QSAR; ve-degree Randić index; ve-degree Zagreb indices

Online: 23 January 2017 (16:14:37 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0514.v1

AlphaLogD Determination: A New Generation Reversed-Phase HPLC Method to Measure Lipophilicity on Neutral and Basic Small and Beyond-Rule-of-Five Compounds

Daniel Katz, Kate Fike, Justin Longenberger, Steve Placko, Laurence Philippe-Venec, Andrew Chervenak

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: High Performance Liquid Chromatography; Superficially Porous Particle; Shake-Flask method; Lipophilicity; Beyond-Rule-of-5

Online: 23 February 2021 (14:07:42 CET)

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Preprint ARTICLE | doi:10.20944/preprints201803.0182.v1

Technological Configuration Capability, Strategic Flexibility and Organizational Performance in Chinese High-Tech Organizations

Lulu Zhou, Xufan Zhang, Zhihong Chen, Feng Tian

Subject: Business, Economics And Management, Human Resources And Organizations Keywords: strategic flexibility; technology configuration capabilities; organizational performance; complex-dynamic environment, Chinese high-tech organizations

Online: 21 March 2018 (03:55:52 CET)

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Preprint ARTICLE | doi:10.20944/preprints201712.0135.v1

Flood Mitigation Techniques—A New Perspective for the Case Study of Adayar Watershed

Vidyapriya V., Ramalingam M.

Subject: Engineering, Civil Engineering Keywords: urban flood; river flood; hydrodynamic model; high resolution dem; flood mitigation measures

Online: 19 December 2017 (10:14:54 CET)

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Preprint ARTICLE | doi:10.20944/preprints201709.0098.v2

A Conversion Method to Determine Regional Vegetation Cover Factor from Standard Plots based on Large Sample Theory and TM Images: A Case Study in the Eastern Farming-pasture Ecotone of Northern China

Degen Lin, Yuan Gao, Yaoyao Wu, Peijun Shi, Huiming Yang, Jing’ai Wang

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: farming-pasture ecotone; TM image; remote sensing; vegetation cover factor; scale conversion; land use; high resolution image

Online: 21 September 2017 (16:33:49 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201710.0134.v1

Improvement in Mechanical Properties of Cantala Fiber and Short Cantala/Recycled High-Density Polyethylene Composite through Chemical Treatment

Wijang Wisnu Raharjo, Rudy Soenoko, Yudy Surya Irawan, Agus Suprapto

Subject: Chemistry And Materials Science, Biomaterials Keywords: chemical treatment; cantala fiber; mechanical properties; recycled high-density polyethylene

Online: 20 October 2017 (03:19:47 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201704.0007.v1

The impact of tourist traffic on the condition and cell structures of alpine swards

Marlena Kycko, Bogdan Zagajewski, Elżbieta Romanowska, Magdalena Zwijacz-Kozica, Samantha Lavender

Subject: Environmental And Earth Sciences, Environmental Science Keywords: High Tatras; trampling; spectroscopy; vegetation indices; fluorescence; Juncus trifidus; Agrostis rupestris; Luzula alpino-pilosa; Oreochloa disticha; Festuca picta

Online: 3 April 2017 (16:44:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201804.0075.v1

High Frequency Acceleration Device Effect on Accelerated Aligner Exchange - A Pilot Study

Thomas Shipley

Subject: Medicine And Pharmacology, Dentistry And Oral Surgery Keywords: high frequency; acceleration; vibration; orthodontics; tooth movement

Online: 6 April 2018 (10:57:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201711.0104.v1

Effect of Alkane Chain Length on Crystallization in Emulsions during Supercooling in Quiescent Systems and under Mechanical Stress

Serghei Abramov, Kinza Shah, Lydia Weißenstein, Heike Petra Karbstein

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: emulsion; dispersion; crystallization; melt emulsification; crystallization index; aggregation; nucleation

Online: 16 November 2017 (05:09:39 CET)

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Preprint ARTICLE | doi:10.20944/preprints202105.0145.v1

Weight Estimation of Marine Propulsion and Power Generation Machinery

Arun Kr Dev, Makaraksha Saha

Subject: Engineering, Marine Engineering Keywords: engine weight; engine power; engine/generator power; engine RPM; cylinder number; power-RPM ratio; power-RPM ratio per cylinder; low-speed; medium-speed; high-speed; standard deviation; correlation coefficient; coefficient of multiple determination; F-statistic

Online: 7 May 2021 (14:17:36 CEST)

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During the conceptual and preliminary design stage of a ship, designers need to ensure that the selected principal dimensions and parameters are good enough to deliver a stable ship (statically and dynamically) besides deadweight and speed. To support this, the initial intact stability of the proposed ship is required to be calculated, and in doing so, the lightship weight and its detailed breakdown are necessary to be known. After hull steel weight, machinery weight, mainly, marine propulsion and power generation machinery, play a vital role in the lightship weight estimate of a ship due to its robustness. The correct estimation of respective weights improves the accuracy of calculating a ship's initial stability typically to be designed and built. Hence, it would be advantageous for the designer to convince the ship owner. A total of 3006 marine propulsion (main marine diesel) engines and 348 power generation (auxiliary marine diesel) engines/generators of various power output (generators output for auxiliary engines), engine RPM and cylinder number of different engine makers are collected. These are analyzed and presented in both tabular and graphical forms to demonstrate the possible relationship between marine propulsion engine weight and power generation engine weight, and their respective power output, RPM, cylinder number, power-RPM ratio and power-RPM ratio per cylinder.In this article, the authors have attempted to investigate the behavior of marine propulsion engine weight and power generation engine/generator weight regarding engine power output, generator power output, engine RPM and cylinder number (independent variables). Further attempts have been made to identify those independent variables that influence the weight of the marine propulsion engine and power generation engine/generator (dependent variables), and their interrelationships. A mathematical model has thus been developed and proposed, as a guiding tool, for the designer to estimate the weight of main and auxiliary engines more accurately during the conceptual and preliminary design stage.

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