Search | Preprints.org

Preprint ARTICLE | doi:10.20944/preprints201708.0033.v1

Characterization of Petroleum Sludge from Refinery Industry Biological Wastewater Treatment Unit

Abubakar M. Ali, Mohd A. Abu-Hassan, Raja R.K. Ibrahim, Muhammad A. A. Zaini, Bala I. Abdulkarim, Ali S. Hussein, Sheila M. Su, Muhd Azril I. Mohd Halim

Subject: Engineering, Chemical Engineering Keywords: petroleum sludge; characterization; total organic carbon; metal concentration

Online: 8 August 2017 (13:24:39 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202002.0197.v1

Predict Arrival Time by Using Machine Learning Algorithm to Promote Utilization of Urban Smart Bus

Rafidah Md Noor, Ng Seong Yik, Raenu Kolandaisamy, Ismail Ahmedy, Mohammad Asif Hossain, Kok-Lim Alvin Yau, Wahidah Md Shah, Tarak Nandy

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Support Vector Machine; Support Vector Regression; Machine learning; Prediction; Urban Smart Bus

Online: 15 February 2020 (14:33:23 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201703.0199.v1

The Music of Bipolar Disorder

David Angeler

Subject: Arts And Humanities, Music Keywords: auditory arts; psychiatry; heavy metal music; mental disorder; bipolar; education; awareness

Online: 27 March 2017 (10:45:03 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201811.0399.v1

A Review of Photocatalytic Water Purification with Metal Organic Frameworks

Jorge Bedia, Virginia Muelas-Ramos, Manuel Peñas-Garzón, Almudena Gómez-Avilés, Juan J. Rodríguez, Carolina Belver

Subject: Engineering, Chemical Engineering Keywords: Metal organic frameworks; Photocatalysis; Water purification

Online: 16 November 2018 (10:44:33 CET)

Show abstract| Download PDF| Share

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

Evaluation of Electrical Efficiency of Photovoltaic Thermal Solar Collector

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

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

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

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202005.0050.v1

The Public Mental Health While in a Community Quarantine Due to COVID-19 Pandemic: A Scoping Review of Literature Using Google Scholar

Ryan Labana

Subject: Social Sciences, Psychology Keywords: COVID-19 Pandemic; Review Literature; Psychosocial Support System; Public Health Administration

Online: 5 May 2020 (02:23:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201612.0138.v1

Vibration Damping Analysis of Lightweight Structures in Machine Tools

Francesco Aggogeri, Alberto Borboni, Angelo Merlo, Nicola Pellegrini, Raffaele Ricatto

Subject: Engineering, Mechanical Engineering Keywords: hybrid materials; machine tool structures; modal analysis; machine tool kinematics; aluminium metal foams; aluminium corrugated sandwiches; CFRP materials; FE simulations; damping

Online: 29 December 2016 (07:36:15 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201608.0137.v1

Contamination Characteristics and Assessment of Manganese, Zinc, Chrome, Lead, Copper and Nickel in Bus Station Dusts of Xifeng, Northwest China

Yongfu Wu, Xinwei Lu, Sukai Zhuang, Xiufeng Han, Yan Zhou

Subject: Environmental And Earth Sciences, Environmental Science Keywords: heavy metal; contamination assessment; X-ray fluorescence; bus station dusts

Online: 13 August 2016 (09:41:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201806.0002.v1

Power Transformer Insulation Assessment Based on Oil-Paper Measurement Data Using SVM-Classifier

Suwarno -, Rahman A. Prasojo

Subject: Engineering, Electrical And Electronic Engineering Keywords: support vector machine; classification analysis; power transformer condition assessment; oil immersed paper insulation; dga; dielectric characteristics, furanic compounds

Online: 1 June 2018 (05:58:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201811.0182.v1

Effect of PWHT Temperature and Time on Hardness and Microstructure of 410NiMo Weld Metal

Uğur Özdemir, Selçuk Keskinkılıç, Filiz K. Acar, Fikret Kabakci, Mustafa Acarer

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: 410NiMo, all weld metal, heat treatment, hardness, microstructure

Online: 7 November 2018 (16:24:42 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201803.0091.v1

A Breakthrough in Water Purification Using an Oligodynamic Metal and Moringa Oleifera Seed

Alakaparampil Joseph Varkey

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: water purification, oligodynamic metal, moringa oleifera seed, copper

Online: 12 March 2018 (15:20:37 CET)

Show abstract| Download PDF| Share

Working Paper ARTICLE

Identiﬁcation of Hydrothermal Alteration Minerals for Exploring Gold Deposit Based on SVM and PCA Using ASTER Data: A Case Study of Gulong

Kai Xu, Xiaofeng Wang, Chunfang Kong, Ruyi Feng, Gang Liu, Chonglong Wu

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: gold deposit; alteration information; ASTER image; support vector machine (SVM); principal component analysis (PCA)

Online: 22 October 2019 (04:26:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201808.0242.v1

Thickness-Dependent Differential Reflectance Spectra of Monolayer and Few-Layer MoS₂, MoSe₂, WS₂ and WSe₂

Yue Niu, Sergio Gonzalez-Abad, Riccardo Frisenda, Philipp Marauhn, Matthias Drüppel, Patricia Gant, Robert Schmidt, Najme S. Taghavi, David Barcons, Aday J. Molina-Mendoza, Steffen Michaelis De Vasconcellos, Rudolf Bratschitsch, David Perez De Lara, Michael Rohlfing, Andres Castellanos-Gomez

Subject: Chemistry And Materials Science, Nanotechnology Keywords: 2D materials; transition metal dichalcogenides (TMDCs); MoS2; WS2; MoSe2; WSe2; optical properties

Online: 14 August 2018 (05:21:56 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201708.0055.v1

A Survey of Data Processing of EMR (Electronic Medical Record) Based on Data Mining

Wencheng Sun, Fang Liu, Zhiping Cai, Shengqun Fang, Guoyan Wang

Subject: Computer Science And Mathematics, Information Systems Keywords: EMR; data preprocessing; text mining; information extraction; medical decision support system

Online: 15 August 2017 (05:46:43 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201705.0104.v1

A Systematic Review: Family Support Integrated To Diabetes Self-Management among Glycemic Uncontrolled Type II DM Patients

Rian Adi Pamungkas, Kanittha Chamroonsawasdi, Paranee Vatanasomcoon

Subject: Social Sciences, Behavior Sciences Keywords: diabetes self-management; family support; glycemic uncontrolled; type 2 DM; systematic review

Online: 12 May 2017 (05:27:28 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201710.0133.v3

Comparison of Stochastic and Machine Learning Methods for Multi-Step Ahead Forecasting of Hydrological Processes

Georgia Papacharalampous, Hristos Tyralis, Demetris Koutsoyiannis

Subject: Engineering, Civil Engineering Keywords: multi-step ahead forecasting; neural networks; random forests; stochastic vs machine learning models; support vector machines; time series

Online: 17 January 2019 (15:51:22 CET)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0436.v1

The Impact of Training and Support Interventions on Small Businesses in the Expanded Public Works Programme – Pretoria Region

Lungisani G Dladla, Emmanuel Mutambara

Subject: Business, Economics And Management, Economics Keywords: Expanded Public Works Programme; EPWP; SMMEs; Training; and Support

Online: 21 September 2018 (10:44:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201609.0104.v1

Icing Forecasting of High Voltage Transmission Line Using Weighted Least Square Support Vector Machine with Fireworks Algorithm for Feature Selection

Tiannan Ma, Dongxiao Niu

Subject: Computer Science And Mathematics, Computer Science Keywords: icing forecasting; fireworks algorithm; least square support vector machine; feature selection

Online: 27 September 2016 (11:16:44 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201704.0005.v1

High-Performance Microcrystalline Cellulose/Soy Protein Isolate-Based Nanocomposite Film via Cu and Zn Nanoclusters Modification

Kuang Li, Shicun Jin, Hui Chen, Jing He, Jianzhang Li

Subject: Chemistry And Materials Science, Biomaterials Keywords: Soy protein isolate; Microcrystalline cellulose; Metal nanoclusters; Nanocomposite film; Tensile strength

Online: 3 April 2017 (16:42:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201701.0095.v1

Visible Light-Induced Metal Free Surface Initiated Atom Transfer Radical Polymerization of Methyl Methacrylate on SBA-15

Liang Ma, Na Li, Jian Zhu, Xiao Dong Chen

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: polymeric composite; surface initiated atom transfer radical polymerization; photo-induced; living radical polymerization; metal-free atom transfer radical polymerization

Online: 22 January 2017 (04:56:44 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201706.0093.v2

The Open Energy Modelling Framework (oemof) - A New Approach to Facilitate Open Science in Energy System Modelling

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

Subject: Engineering, Energy And Fuel Technology Keywords: decision support; energy system modelling; optimization; collaborative development; open science

Online: 27 March 2018 (05:34:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201801.0193.v1

A Multi-Agent System Based Approach to Fight Financial Fraud: An Application to Money Laundering

Claudio Alexandre, João Balsa

Subject: Computer Science And Mathematics, Computer Science Keywords: multi-agent system; decision support; anti-money laundering; anti-fraud

Online: 22 January 2018 (04:46:20 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201609.0119.v1

Short-Term Load Forecasting Using Adaptive Annealing Learning Algorithm Based Reinforcement Neural Network

Cheng-Ming Lee, Chia-Nan Ko

Subject: Engineering, Electrical And Electronic Engineering Keywords: short-term load forecasting; radial basis function neural network; support vector regression; particle swarm optimization; adaptive annealing learning algorithm

Online: 29 September 2016 (12:22:20 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202101.0013.v1

Social Support and Emotional Maturity to Reduce Students’ Online Learning Anxiety During the Covid-19 Pandemic

Andik Matulessy, Sahat Saragih, Nawafil Nawafil, Hengki Perdana, Moses Pandin

Subject: Social Sciences, Education Keywords: Social support; emotional maturity; anxiety; online learning

Online: 4 January 2021 (11:26:27 CET)

Show abstract| Download PDF| Share

Working Paper ARTICLE

An Efficient Electrocatalyst for Oxygen Evolution Reaction in Alkaline Solutions Derived from a Copper Chelate Polymer via in-situ Electrochemical Transformation

Ridwan P. Putra, Hideyuki Horino, Izabela I. Rzeznicka

Subject: Chemistry And Materials Science, Applied Chemistry Keywords: electrocatalyst; oxygen evolution reaction; dithiooxamide; chelate polymers; copper oxides; metal-air batteries; alkaline

Online: 21 January 2020 (09:04:30 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201902.0013.v1

Low-Cost Adsorbents Procedure by Means of Heavy Metal Elimination from Wastewater

Nayankanti Devanna, Baby Abrarunnisa Begum, M.Adharvana Chari

Subject: Chemistry And Materials Science, Theoretical Chemistry Keywords: Heavy metal; Agricultural waste; Low-cost adsorbent; Wastewater; Toxicity

Online: 1 February 2019 (10:33:23 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202106.0617.v1

Solid-State Hydrogen Storage: Materials, Systems and the Relevance of a Gender Perspective

Erika Michela Dematteis, Jussara Barale, Marta Corno, Alessandro Sciullo, Marcello Baricco, Paola Rizzi

Subject: Chemistry And Materials Science, Biomaterials Keywords: energy transition; hydrogen; hydrogen storage; metal hydride; complex hydride; hydrogen tank; social impact; gender

Online: 25 June 2021 (11:44:46 CEST)

Show abstract| Download PDF| Share

This paper aims at addressing the exploitation of solid-state carriers for hydrogen storage, with attention paid both to the technical aspects, through a wide review of the available integrated systems, and to the social aspects, through a preliminary overview of the connected impacts from a gender perspective. As for the technical perspective, carriers to be used for solid-state hydrogen storage for various applications can be classified into two classes: metal and complex hydrides. Related crystal structures and corresponding hydrogen sorption properties are reviewed and discussed. Fundamentals of thermodynamics of hydrogen sorption evidences the key role of the enthalpy of reaction, which determines the operating conditions (i.e. temperatures and pressures). In addition, it rules the heat to be removed from the tank during hydrogen absorption and to be delivered to the tank during hydrogen desorption. Suitable values for the enthalpy of hydrogen sorption reaction for operating conditions close to ambient (i.e. room temperature and 1-10 bar of hydrogen) are close to 30 kJ·molH2 1. The kinetics of hydrogen sorption reaction is strongly related to the microstructure and to the morphology (i.e. loose powder or pellets) of the carriers. Usually, kinetics of hydrogen sorption reaction is rather fast, and the thermal management of the tank is the rate determining step of the processes. As for the social perspective, various scenarios for the applications in different socio-economic contexts of solid-state hydrogen storage technologies are described. As it occurs with the exploitation of other renewables innovative technologies, a wide consideration of the social factors connected to these processes is needed to assess the extent to which a specific innovation might produce positive or negative impacts in the recipient socio-economic system and to explore the potential role of the social components and dynamics in fostering the diffusion of the innovation itself. Attention has been addressed to the gender perspective, in view of the enhancement of hydrogen-related energy storage systems, intended both in terms of the role of women in triggering the exploitation of hydrogen-based storage as well as to the impact of this innovation in their current conditions, at work and in daily life.

Preprint ARTICLE | doi:10.20944/preprints201702.0102.v1

Experimental Studies of Turbulence Intensity around a Tidal Turbine Support Structure

Stuart Walker, Lorenzo Cappietti

Subject: Engineering, Energy And Fuel Technology Keywords: Marine Energy; Tidal turbine; horizontal-axis marine current turbine; OCT; Turbulence; Support Structure; device wake

Online: 28 February 2017 (11:55:00 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201702.0087.v1

Metal-Free α-C(sp³)–H Functionalized Oxidative Cyclization of Tertiary N,N-Diaryl Amino Alcohols: Theoretical Approach for Mechanistic Pathway

Zakir Ullah, Mihyun Kim

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: α-C(sp3)–H functionalization; oxidative cyclization; tertiary amine; 6-exo-trig; metal free

Online: 23 February 2017 (10:40:53 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201703.0059.v1

Fluid Flow and Mixing Induced by AC Continuous Electrowetting of Liquid Metal Droplet

Qingming Hu, Yukun Ren, Weiyu Liu, Xiaoming Chen, Ye Tao, Hongyuan Jiang

Subject: Physical Sciences, Fluids And Plasmas Physics Keywords: Mixer; Marangoni chaotic advection; continuous electrowetting; liquid metal droplet

Online: 13 March 2017 (07:58:09 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint COMMUNICATION | doi:10.20944/preprints201701.0037.v1

Atom-Economic Synthesis of 4-Pyrones from Diynones and Water

Yan-Li Xu, Qing-Hu Teng, Wei Tong, Heng-Shan Wang, Ying-Ming Pan, Xian-Li Ma

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: 4-pyrones; diynones; water; transition-metal-free

Online: 9 January 2017 (04:46:22 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201612.0017.v1

Microstructure and Tribological Properties of Mo-40Ni-13Si Multiphase Intermetallic Alloy

Chunyan Song, Shuhuan Wang, Yongliang Gui, Zihao Cheng, Guolong Ni

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: intermetallic; refractory metal; tribological property; toughening

Online: 2 December 2016 (11:04:19 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201703.0202.v3

Overhanging Features and the SLM/DMLS Residual Stresses Problem: Review and Future Research Need

Albert E. Patterson, Sherri L. Messimer, Phillip A. Farrington

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: additive manufacturing; 3-D printing; metal additive manufacturing; selective laser melting; SLM; direct metal laser sintering; DMLS; metal powder processing

Online: 4 April 2017 (07:56:07 CEST)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202104.0126.v1

The Role of Nurses in Providing Social Support in Tuberculosis Treatment: Literature Review

Ni Nyoman Elfiyunai, Moses Glorino Rumambo Pandin

Subject: Public Health And Healthcare, Nursing Keywords: Social Suppport; Tuberculosis; Nursing; Information Support

Online: 5 April 2021 (12:27:39 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201610.0042.v3

Visualizing Electromagnetic Vacuum by MRI

Chandrika S. Chandrashekar, Annadanesh Shellikeri, S. Chandrashekar, Erika A. Taylor, Deanne M. Taylor

Subject: Physical Sciences, Applied Physics Keywords: electromagnetic vacuum; MRI; metal

Online: 10 December 2016 (08:32:59 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201703.0228.v1

Hydrogen Storage Characteristics and Corrosion Behavior of V-rich Ti-V-Cr-Fe Alloy

Jimoh Mohammed Abdul, Lesley Hearth Chown, Jamiu K. Odusote, Jean Nei, Kwo-Hsiung Young, Woli Taiye Olayinka

Subject: Chemistry And Materials Science, Chemical Engineering Keywords: Ti-V-Cr-Fe alloy; hydrogen storage characteristics; metal corrosion; heat treatment; crystal structure

Online: 31 March 2017 (09:19:32 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201701.0118.v1

Peierls and Spin-Peierls Instabilities in the Per₂[M(mnt)₂] Series of One-Dimensional Organic Conductors; Experimental Realization of a 1D Kondo Lattice for M = Pd, Ni and Pt

Jean-Paul Pouget, Pascale Foury-Leylekian, Manuel Almeida

Subject: Physical Sciences, Condensed Matter Physics Keywords: organic conductors; one dimensional metal; Kondo lattice; Peierls and spin-Peierls transitions; frustrated anti-ferromagnetic systems

Online: 26 January 2017 (07:48:59 CET)

Show abstract| Download PDF| Share

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)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202007.0451.v1

Burnout in the Clinical Personnel of Puerto Rico during the COVID-19 Pandemic

Gustavo Cortina-Rodríguez, Yelianne Afanador

Subject: Social Sciences, Behavior Sciences Keywords: Burnout syndrome; MBI; Clinical personnel; COVID-19; SARS-CoV-2; metal health

Online: 19 July 2020 (21:24:17 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201702.0077.v1

Shape and Geometric Features-based Semantic Image Retrieval Using Multi-class Support Vector Machine

Zohair Malki

Subject: Computer Science And Mathematics, Computer Science Keywords: Zernike moment, Multi-class support vector machine, Query Engine, SPARQL

Online: 20 February 2017 (18:07:11 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202008.0415.v1

Monitoring Coronavirus COVID-19/SARS-CoV-2 Pandemic using GIS Dashboard: International and Indonesia Context

Edy Irwansyah, Widodo Budiharto, Danu Widhyatmoko, Achmad Istamar, Fepri Putra Panghurian

Subject: Medicine And Pharmacology, Other Keywords: pandemic; covid-19; monitoring; GIS dashboard; emergency spatial support centre

Online: 19 August 2020 (11:48:55 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201704.0125.v1

Methanediide Formation via Hydrogen Elimination in Magnesium versus Aluminium Hydride Complexes of a Sterically Demanding Bis(iminophosphoranyl)methanediide

Christian P. Sindlinger, Samuel R. Lawrence, David B. Cordes, Alexandra M. Z. Slawin, Andreas Stasch

Subject: Chemistry And Materials Science, Inorganic And Nuclear Chemistry Keywords: alane; aluminium; hydrogen formation; magnesium; magnesium hydride; metal hydrides; methanediides; N,N'-chelation

Online: 19 April 2017 (13:11:04 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint COMMUNICATION | doi:10.20944/preprints201710.0102.v2

Bottom-Up Synthesis of Porous NiMo Alloy for Hydrogen Evolution Reaction

Kailong Hu, Samuel Jeong, Mitsuru Wakisaka, Jun-ichi Fujita, Yoshikazu Ito

Subject: Chemistry And Materials Science, Nanotechnology Keywords: nanoporous; NiMo; non-noble metal catalyst; hydrogen evolution

Online: 16 November 2017 (07:51:47 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201804.0314.v1

Application of AHP and DEMATEL Methods in Choosing and Analysing the Measures for the Distribution of Goods in Szczecin Region

Kinga Kijewska, Witold Torbacki, Stanisław Iwan

Subject: Social Sciences, Decision Sciences Keywords: urban freight transport; city logistics; decision making process; multi-actor decision support; Multi-Criteria Decision Analysis; MCDA; Analytic Hierarchy Process; AHP; Decision Making Trial and Evaluation Laboratory Method; DEMATEL

Online: 24 April 2018 (09:19:37 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202201.0368.v2

Mental Disorder Symptoms among Paramedics in a Single Canadian Site

Justin Mausz, Elizabeth Anne Donnelly, Sandra Moll, Sheila Harms, Meghan McConnell

Subject: Social Sciences, Psychology Keywords: Public Safety Personnel; First Responders; Mental Disorders; Mental Health; Well-Being; Trauma; Operational Stress Injuries; Post-Traumatic Stress Injuries; Resilience; Peer Support; Paramedics; Emergency Medical Services

Online: 27 January 2022 (13:57:44 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202003.0222.v1

Correlation of Essential Servant Leadership Behaviors, Perceived Organizational Support, and Employee Well-Being

Bruce Winston

Subject: Social Sciences, Behavior Sciences Keywords: servant leadership; perceived organizational support; employee well-being; correlation

Online: 13 March 2020 (02:53:46 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201804.0215.v1

Fabrication of Multifunctional Hybrid Composites Using Fly Ash to Control Environmental Pollutants: A Review

Jun Cong Ge, Sam Ki Yoon, Nag Jung Choi

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: fly ash; nanocomposite; environmental pollution; volatile organic compounds; heavy metal

Online: 16 April 2018 (16:15:22 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202006.0315.v1

Psychological Factors Influencing Pro-Environmental Behavior in Developing Countries: Evidence from Colombian and Nicaraguan Students

Manuel Díaz, Andrés Charry, Stefania Sellitti, Matteo Ruzzante, Karen Enciso, Stefan Burkart

Subject: Social Sciences, Behavior Sciences Keywords: awareness of sustainability; education; psychological adaptation; environmental attitudes; policy support

Online: 26 June 2020 (12:43:46 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201807.0242.v1

Tunable Metal-Organic Frameworks for Heat Transformation Applications

Somboon Chaemchuen, Xuan Xiao, Nikom Klomkliang, Mekhman S. Yusubov, Francis Verpoort

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Metal-organic frameworks; heat transformation; low temperature heat; adsorbent; water adsorption.

Online: 13 July 2018 (15:32:52 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201611.0006.v1

A New Method of Environmental Assessment and Monitoring of Heavy Metal Polluted Soil Using Fruticose Lichens

Yuri Sueoka, Masayuki Sakakibara, Sakae Sano, Yoshikazu Yamamoto

Subject: Environmental And Earth Sciences, Environmental Science Keywords: biomarker; environmental assessment; elemental competition; bioconcentration factor; heavy metal absorption

Online: 1 November 2016 (09:34:35 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201809.0532.v1

Hydrogen Oxidation on Ni-Based Electrocatalysts: The Effect of Metal Doping

Elena S. Davydova, Jérémie Zaffran, Kapil Dhaka, Maytal Caspary Toroker, Dario R. Dekel

Subject: Chemistry And Materials Science, Electrochemistry Keywords: metal doping; nickel-based catalyst; transition metals; synthesis; hydrogen oxidation reaction; exchange current density; alkaline medium; DFT; hydrogen binding energy; hydroxide binding energy

Online: 27 September 2018 (04:59:46 CEST)

Show abstract| Download PDF| Supplementary Files| Share

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

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

Sean Drummer, Tafirenyika Nyamayaro Madzimbamuto, Mahabubur Chowdhury

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

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

Show abstract| Download PDF| Supplementary Files| Share

Preprint REVIEW | doi:10.20944/preprints201805.0478.v1

Media Health Literacy, eHealth Literacy, and the Role of the Social Environment in Context

Diane Levin-Zamir, Isabella Bertschi

Subject: Social Sciences, Behavior Sciences Keywords: health literacy; media health literacy; ehealth literacy; social environment; health apps; social support; digital health; empowerment

Online: 31 May 2018 (11:45:44 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201809.0266.v1

In Situ Synthesis of Hybrid Inorganic-Polymer Nanocomposites

Mohammed Adnan, Antoine Dalod, Mustafa Balci, Julia Glaum, Mari-Ann Einarsrud

Subject: Chemistry And Materials Science, Nanotechnology Keywords: nano hybrids, nanocomposites, sol-gel, in situ synthesis, metal oxides

Online: 14 September 2018 (13:38:47 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201705.0091.v1

The Government Support and the Innovation of the New Energy Firms

Weijian Du, Mengjie Li

Subject: Business, Economics And Management, Economics Keywords: Government support; Innovation probability; Innovation destiny; Propensity score matching

Online: 10 May 2017 (18:04:33 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201705.0124.v1

Walking across rural-urban fringe: the hindering effect of intersections

Ivan Blecic, Tanja Congiu, Dario Canu, Giovanna Fancello

Subject: Social Sciences, Urban Studies And Planning Keywords: rural-urban fringe; walkability; road intersections; decision support methods; Electre Tri

Online: 16 May 2017 (13:50:46 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201705.0003.v3

Introducing Sustainability in Value Models to Support Design Decision Making: A Systematic Review

Marco Bertoni

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: sustainability; value modeling; decision support; value driven design; review

Online: 12 June 2017 (13:51:25 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201709.0157.v1

Cis-1,4-Polymerization of Isoprene by 1,3-Bis(oxazolinymethylidene)isoindoline Ligated Rare Earth Metal Dialkyl Complexes

Chao Yu, Dahai Zhou, Xiangqian Yan, Fei Gao, Li Zhang, Shaowen Zhang, Xiaofang Li

Subject: Chemistry And Materials Science, Organic Chemistry Keywords: rare earth metal complexes; 1,3-bis(oxazolinymethylidene)isoindoline ligand; polymerization; isoprene; cis-1,4-selectivity

Online: 29 September 2017 (14:50:39 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints202103.0455.v1

Implementation of TQM and the Integration of BIM in the Construction Management Sector in Saudi Arabia Validated with Hybridized Emerging Harris Hawks Optimization (HHO)

Mohammad Abazid, Hüseyin Gökçekuş, Tahir Celik

Subject: Engineering, Automotive Engineering Keywords: Total Quality Management; construction projects; Saudi Arabia; Harris-hawks optimization; support vector regression

Online: 17 March 2021 (17:01:02 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201807.0408.v1

Maritime Workers’ Quality of Life: Organizational Culture, Self-efficacy, and Perceived Fatigue

Jae hee Kim, Soong-nang Jang

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: quality of work life; organizational culture; organizational support; self-efficacy; maritime workers; culture-work-health model

Online: 23 July 2018 (10:00:06 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201806.0483.v1

GC-MS and Heavy Metal Analysis of GASCA D Herbal Formulation

Salihu Ibrahim, Fakhraddeen Yahya, Ibrahim gezawa, Nafisatu kabir, Abdulkadir Imam, Bashir Chedi

Subject: Medicine And Pharmacology, Pharmacology And Toxicology Keywords: Heavy metal, herbal, diabetes

Online: 29 June 2018 (11:36:18 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201708.0096.v1

The Extracellular Domain of Human High Affinity Copper Transporter (hNdCTR1), Synthesized by E. coli Cells, Chelates Silver and Copper Ions in Vivo

Tatiana P. Sankova, Iurii A. Orlov, Andrey N. Saveliev, Demid A. Kirilenko, Polina S. Babich, Pavel N. Brunkov, Ludmila V. Puchkova

Subject: Biology And Life Sciences, Biology And Biotechnology Keywords: CTR1 metal-binding extracellular domain cloning; copper/silver chelation; E. coli filamentous growth; secondary silver nanoparticles formation

Online: 27 August 2017 (11:56:08 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.3390/sci1010004.v1

Synthesis of A Silver Nanowire Array on Cu-BTC MOF Micropillars

Zhen Qiao, Arben Kojtari, Jacob Babinec, Hai-Feng Ji

Subject: Chemistry And Materials Science, Metals, Alloys And Metallurgy Keywords: metal-organic-framework; silver nanowire; array; micropillar

Online: 30 November 2018 (00:00:00 CET)

Show abstract| Share

Working Paper ARTICLE

Calculation of the Isobaric Heat Capacities of the Liquid and Solid Phase of Organic Compounds at and around 298.15K Based on their “True” Molecular Volume

Rudolf Naef

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: heat capacity; molecular volume; force-field geometry optimization; hydrocarbons; ionic liquids; siloxanes; metal complexes

Online: 29 March 2019 (08:54:23 CET)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201804.0236.v1

Detection of Ni, Fe, and Cr Released in Saliva after Prefabricated Metal Crown Placement in Children

César Tadeo Hernández-Martínez, Raúl Alberto Morales-Luckie, Norma Leticia Robles-Berme, Sandra Isabel Jiménez-Gayosso, Marius Ramírez-Cardona, Verónica García-Hernández, Edith Lara-Carrillo, Carlo Eduardo Medina-Solís

Subject: Chemistry And Materials Science, Nanotechnology Keywords: prefabricated metal crowns (PMCs); nickel (Ni); chromium (Cr); iron (Fe); ion release

Online: 18 April 2018 (08:38:25 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202109.0459.v1

Investigation and Optimization of Mxene functionalized Mesoporous Titania Films as Efficient Photoelectrodes

Anum Iqbal, Nasser M. Hamdan

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Transition Metal Carbides; Power Conversion Efficiency (PCE); Surface Plasmon Resonance (SPR); Photocatalyst; Mxene; Photoelectrodes; Titania

Online: 28 September 2021 (09:52:21 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201704.0175.v1

Anderson Insulators in Self-Assembled Gold Nanoparticles Thin Films: Single Electron Hopping between Charge Puddles Originated from Disorder

Cheng-Wei Jiang, I-Chih Ni, Yun-Lian Hsieh, Shien-Der Tzeng, Cen-Shawn Wu, Watson Kuo

Subject: Physical Sciences, Condensed Matter Physics Keywords: nanoparticles; metal-insulator transition; Anderson localization

Online: 27 April 2017 (02:48:19 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201709.0114.v1

Seawater Temperature Prediction Method for Sustainable Marine Aquaculture

Takanobu Otsuka, Yuji Kitazawa, Takayuki Ito

Subject: Computer Science And Mathematics, Information Systems Keywords: WSN; IoT; seawater temperature prediction; marine aquaculture support

Online: 23 September 2017 (11:31:13 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints201811.0523.v1

Recent Progress in Constructing Plasmonic Metal/Semiconductor Hetero-Nanomaterials for Improved Photocatalysis

Liang Ma, Shuang Chen, You-Long Chen, Mo-Xi Liu, Hai-Xia Li, Yi-Ling Mao, Si-Jing Ding

Subject: Chemistry And Materials Science, Physical Chemistry Keywords: photocatalysis; plasmon; metal/semiconductor; electron transfer; energy conversion

Online: 21 November 2018 (11:18:11 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202009.0582.v1

A Useful Manufacturing Guide for Rotary Piercing Seamless Pipe by ALE Method

Ameen Topa, Burak Can Cerik, Do Kyun Kim

Subject: Engineering, Marine Engineering Keywords: structural analysis; structural design; rotary piercing; seamless pipes; bulk metal forming; FSI

Online: 24 September 2020 (11:43:12 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202107.0638.v1

Leaf Diseases Detection of Medicinal Plants based on Image Processing and Machine Learning Processes

Payal Bose, SHAWNI DUTTA, Vishal Goyal, Samir K. Bandyopadhyay

Subject: Biology And Life Sciences, Plant Sciences Keywords: Image Processing; Automated Plant Diseases Detection; Histogram Oriented Gradient (HOG); Local Binary Pattern (LBP); Support Vector Machine (SVM)

Online: 28 July 2021 (17:18:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201712.0017.v1

Investigation into Forming Limits of Multi-Layer Hybrid Sheets with different Materials in the Middle

Shichen Liu, Lihui Lang, Shiwei Guan, Sergei Alexandrov, Yipan Zeng

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: fiber-metal laminates (FMLs); multilayer sheet bulging; forming limits; numerical simulation; crack modes

Online: 4 December 2017 (06:54:03 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202305.0968.v1

Wearing Face Masks as a Potential Source for Inhalation and Oral Uptake of Inanimate Toxins: a Scoping Review

Kai Kisielinski, Stefan Hockertz, Oliver Hirsch, Stephan Korupp, Bernd Klosterhalfen, Andreas Schnepf, Gerald Dyker

Subject: Public Health And Healthcare, Public, Environmental And Occupational Health Keywords: surgical mask; N95 mask; toxicity; health risk assessment; microplastic; volatile organic compound (VOC); heavy metal; phthalate; organic compound

Online: 15 May 2023 (03:23:48 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201802.0080.v1

Transport and Field Emission Properties of MoS₂Bilayers

Francesca Urban, Maurizio Passacantando, Filippo Giubileo, Laura Iemmo, Antonio Di Bartolomeo

Subject: Physical Sciences, Condensed Matter Physics Keywords: transition metal dichalcogenides; MoS2; field effect transistor; field emission

Online: 11 February 2018 (04:25:10 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202007.0592.v1

Perceived Organizational Support and Career Adaptability as Predictors of Self and Environmental-career Exploration: An Empirical Investigation in China

Yin Ma, Shih-Chih Chen, Athapol Ruangkanjanases

Subject: Business, Economics And Management, Business And Management Keywords: higher education expansion; sustainable employment; perceived organizational support; career adaptability; self-exploration; environment exploration; sustainable career guidance; sustainability competencies

Online: 24 July 2020 (14:12:38 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201710.0127.v1

Revealing ETC-1922159 Affected Unknown 3^rd order WNT10B-X-X Combinations, in Silico

shriprakash sinha

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: WNT pathway; porcupine inhibitor ETC-1922159; sensitivity analysis; colorectal cancer; unknown biological hypotheses; combinatorial search space; support vector ranking

Online: 18 October 2017 (05:58:17 CEST)

Show abstract| Download PDF| Share

WNT10B belongs to the family of WNT proteins that are implicated in a range of phenomena that are affected by the Wnt signaling pathway. Recent studies have shown that WNT10B plays a role in colorectal cancer. WNTs have been found to directly affect the stemness of the tumor cells via regulation of ASCL2. Switching off the ASCL2 literally blocks the stemness process of the tumor cells and vice versa. Furthermore, recent findings suggest BVES to be highly suppressed in malignancies and in vitro deletions of BVES show higher Wnt signaling activity to induce stem- ness. WNT10B was found to be highly expressed in such cases. Often, in biology, we are faced with the problem of exploring relevant unknown biological hypotheses in the form of myriads of combination of factors that might be affecting the pathway under certain conditions. For example, WNT10B-ASCL2 is one such 2^ndorder combination whose relation needs to be tested under the influence of recently developed porcupine-WNT inhibitor ETC-1922159. The inhibitor is known to suppress PORCN (porcupine) and thus inhibit a range of oncogenes known to be directly or indirectly affected by the Wnts. In a recent unpublished work in bioRxiv, Sinha 1, we had the opportunity to rank these unknown biological hypotheses for down regulated genes at 2^ndorder level after the drug was administered. The in silico observations showed that the combination of WNT10B-ASCL2 was assigned a relatively lower rank, thus validating the pipeline’s efficacy with the confirmed wet lab experiment that indicate that both WNT10B and ASCL2 were down regulated after treatment in cancer cells. Here, we take one step further by in silico analysis of the 3rd order combinations of WNT10B-X-X (X can be known or unknown factor), from a range of 100 randomly picked down regulated genes after ETC-1922159 treatment. The pipeline uses the density based HSIC (Hilbert Schmidt Information Criterion) sensitivity index with an rbf (ra- dial basis function) kernel, which is known to be highly effective in sensitivity analysis. Various unknown/unexplored/untested 3^rdorder biological hypotheses emerge some of which are con- firmed in wet lab, while others need to be tested. The potential of such ranking is indispensable in the current era of search in a vast combinatorial forest.

Preprint ARTICLE | doi:10.20944/preprints201711.0160.v1

Assessing the Performances of Protein Function Prediction Algorithms from the Perspectives of Identification Accuracy and False Discovery Rate

Chunyan Yu, Xiaoxu Li, Hong Yang, Yinghong Li, Weiwei Xue, Yuzong Chen, Lin Tao, Feng Zhu

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: false discovery rate; machine learning; protein function prediction; support vector machine; BLAST

Online: 24 November 2017 (11:14:05 CET)

Show abstract| Download PDF| Supplementary Files| Share

The knowledge of protein function is essential for the study of biological processes, the understanding of disease mechanism and the exploration of novel therapeutic target. Apart from experimental methods, a number of in-silico approaches have been developed and extensively used for protein function prediction. Among these approaches, BLAST predicts functions based on protein sequence similarity, and machine learning predicts functional families from protein sequences irrespective of their similarity, which complements BLAST and other methods in predicting diverse classes of proteins including distantly related proteins and homologous proteins of different functions. However, their identification accuracies and the false discovery rate have not yet been assessed so far, which greatly limits the usage of these prediction algorithms. Herein, a comprehensive comparison of the performances among four popular functional prediction algorithms (BLAST, SVM, PNN and KNN) was conducted. In particular, the performance of these algorithms were systematically assessed by four metrics (sensitivity, specificity, accuracy and Matthews correlation coefficient) based on the independent test datasets generated from 93 protein families defined by UniProtKB Keywords. Moreover, the false discovery rates of these algorithms were evaluated by scanning the genomes of four representative model species (homo sapiens, arabidopsis thaliana, saccharomyces cerevisiae and mycobacterium tuberculosis). As a result, the substantially higher sensitivity and stability of BLAST and SVM were observed compared with that of PNN and KNN. But the machine learning algorithms (PNN, KNN and SVM) were found capable of significantly reducing the false discovery rate (SVM < PNN ≈ KNN). In summary, this study comprehensively assessed the performance of four popular algorithms applied to protein function prediction, which could facilitate the selection of the most appropriate method in the related biomedical research.

Preprint COMMUNICATION | doi:10.20944/preprints201804.0335.v1

Mapping the Distribution of Particles in Hydrogel in Use for Nanoplasmonic Biosensors: A Comparison of Preparation Methods

Harald Ian Muri, Linh Hoang, Dag Roar Hjelme

Subject: Chemistry And Materials Science, Nanotechnology Keywords: metal nanocomposite hydrogels; particle distribution; nanoplasmonic sensor; preparation methods; SEM imaging; volume imaging

Online: 26 April 2018 (08:16:47 CEST)

Show abstract| Download PDF| Share

The distribution of noble metal nanoparticles in hydrogels are influencing their nanoplasmonic response and signal used for biosensor purposes. By controlling the particle distribution, it is possible to obtain new nanoplasmonic features with new sensing modalities. Particle distributions can be characterized by using volume-imaging methods such as the focused ion beam-scanning electron microscope (FIB-SEM) and the serial block-face scanning electron microscopy (SBFSEM) techniques . Since the pore structure of hydrogels is contained by the water absorbed in the polymer network it may pose challenges for volume-imaging based on electron microscope techniques since the sample must be in a vacuum chamber. The structure of hydrogels can be conserved by choosing appropriate preparation methods, which also depends on the composition of the hydrogel used. In this paper, we have prepared low-weight percentage hydrogels, with and without gold nanorods (GNR) for conventional SEM imaging by using two different drying techniques; (1) the critical point drying (CPD) technique and (2) hexamethyldisilazane (HMDS) drying of hydrogels. A qualitative characterization of the GNR-hydrogels was carried out to study the GNRs positioned in the polymer network. The effect of the two different drying methods on the hydrogel morphology were also compared. The use of HMDS as an alternative to the CPD has several advantages involving less parametrical variables for drying, involving less effort, being cost-effective, and requires no equipment use. In addition, choosing an optimized sample preparation method for SEM with optimized imaging parameters is highly important for obtaining accurate information about materials that is not correlated to artifacts. Hence, the results obtained from the preparation methods and SEM imaging parameters in this paper are useful for developing methods for mapping the metal particle distributions in micro-hydrogels by using FIB-SEM and SBFSEM techniques.

Preprint ARTICLE | doi:10.20944/preprints202012.0714.v1

Towards a Biomanufactory on Mars

Aaron Berliner, Jacob M. Hilzinger, Anthony J. Abel, Matthew McNulty, George Makrygiorgos, Nils J.H. Averesch, Soumyajit Sen Gupta, Alexander Benvenuti, Daniel Caddell, Stefano Cestellos-Blanco, Anna Doloman, Skyler Friedline, Desiree Ho, Wenyu Gu, Avery Hill, Paul Kusuma, Isaac Lipsky, Mia Mirkovic, Jorge Meraz, Vince Pane, Kyle B. Sander, Fengzhe Shi, Jeffrey M. Skerker, Alexander Styer, Kyle Valgardson, Kelly Wetmore, Sung-Geun Woo, Yongao Xiong, Kevin Yates, Cindy Zhang, Shuyang Zhen, Bruce Bugbee, Devin Coleman-Derr, Ali Mesbah, Somen Nandi, Robert W. Waymouth, Peidong Yang, Craig S. Criddle, Karen A. McDonald, Amor A. Menezes, Lance C. Seefeldt, Douglas S. Clark, Adam P. Arkin

Subject: Engineering, Automotive Engineering Keywords: space systems bioengineering; human exploration; mars; in situ resource utilization; life support systems; biomanufacturing

Online: 29 December 2020 (07:57:37 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201710.0032.v1

What do Users Really Want? Participatory Development of Decision Support Tools for Environmental Management based on Outcomes.

Richard J. Hewitt, C.J.A. Macleod

Subject: Social Sciences, Geography, Planning And Development Keywords: Environmental decision support systems; applications; outcome-based approach; adaptive management; user requirements; environmental management; participatory land planning

Online: 6 October 2017 (08:51:07 CEST)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202111.0035.v1

Anjali N, Rajkumar Kannan, Frederic Andres, Gheorghita Ghinea

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: Fruits & Vegetables; Classification; Convolutional Neural Network; Support Vector Machine; Defect detection

Online: 2 November 2021 (10:31:56 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201806.0232.v1

Investigations of the Copper Peptide Hepcidin-25 by LC-MS/MS and NMR

Ioana M. Abbas, Marija Vranic, Holger Hoffmann, Ahmed H. El-Khatib, Maria Montes-Bayón, Heiko M. Möller, Michael G. Weller

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: hepcidin-25; copper; nickel; ATCUN motif; metal complex; MS; NMR structure; metal peptide, metalloprotein; metallopeptide, isomerization, racemization, purity, reference material

Online: 14 June 2018 (11:33:21 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202107.0677.v1

Heterogeneous Double Metal Cyanide Catalyzed Synthesis of Poly(ε-caprolactone) Polyols for the Preparation of Thermoplastic Elastomers

Chinh Hoang Tran, Min Woong Lee, Sang Woo Park, Jae Eon Jeong, Soo Jeong Lee, Wenliang Song, PilHo Huh, Il Kim

Subject: Chemistry And Materials Science, Biomaterials Keywords: double metal cyanide; heterogeneous catalysis; caprolactone; ring-opening polymerization; thermoplastic elastomer

Online: 30 July 2021 (09:07:49 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201805.0431.v1

MIL-100(Al) Gels as an Excellent Platform Loaded with Doxorubicin Hydrochloride for pH-Triggered Drug Release and Anticancer Effect

Yuge Feng, Chengliang Wang, Fei Ke, Jianye Zang, Junfa Zhu

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: metal-organic gels; doxorubicin loading and release; pH-responsiveness; anticancer effect

Online: 30 May 2018 (05:01:21 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint REVIEW | doi:10.20944/preprints201804.0150.v1

A Perspective on the Application of Spatially Resolved ARPES for 2D Materials

Mattia Cattelan, Neil Fox

Subject: Physical Sciences, Condensed Matter Physics Keywords: Spatially resolved ARPES; 2D materials; Band structure; Graphene; Transition metal dichalcogenides; 2D heterostructures

Online: 11 April 2018 (13:43:50 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201806.0025.v1

Techno-Economic Analysis of High-Pressure Metal Hydride Compressor Systems

Claudio Corgnale, Martin Sulic

Subject: Engineering, Energy And Fuel Technology Keywords: high pressure hydrogen; metal hydride-based high pressure compression; techno-economic analysis; Ti-based AB2 metal hydrides; mini-channel heat exchanger

Online: 4 June 2018 (09:36:54 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201807.0288.v1

A Methylcellulose Hydrogel as Support for 3D Plotting of Complex Shaped Calcium Phosphate Scaffolds

Tilman Ahlfeld, Tino Köhler, Charis Czichy, Anja Lode, Michael Gelinsky

Subject: Chemistry And Materials Science, Biomaterials Keywords: calcium phosphate cement; methylcellulose; 3D plotting; support; hydroxyapatite

Online: 16 July 2018 (12:55:42 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Preprint ARTICLE | doi:10.20944/preprints201710.0013.v1

Dynamic Scheduling of a Semiconductor Production Line Based on Composite Rule Set

Yumin Ma, Fei Qiao, Fu Zhao, John W. Sutherland

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: Dynamic Scheduling; Semiconductor Manufacturing; Composite Rule Set; Support Vector Regression (SVR)

Online: 3 October 2017 (08:29:45 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202003.0298.v1

A Composite Hybrid Feature Selection Learning-Based Optimization of Genetic Algorithm For Breast Cancer Detection

Ahmed Abdullah Farid, Gamal Selim, Hatem Khater

Subject: Computer Science And Mathematics, Information Systems Keywords: Data Mining; Breast Cancer; Hybrid Feature Selection; Machine learning; Support Vector Machine; Optimize Genetic Algorithm; boosting algorithms

Online: 19 March 2020 (11:13:15 CET)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201806.0492.v1

Study of the Influence of Shielding Gases on Laser Metal Deposition of Inconel 718 Superalloy

Jose Exequiel Ruiz, Magdalena Cortina, Jon Iñaki Arrizubieta, Aitzol Lamikiz

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: LMD; laser metal deposition; shielding gas; Argon; Helium; additive manufacturing; Inconel 718; melt pool temperature

Online: 29 June 2018 (15:44:04 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201711.0008.v1

Revealing ETC-1922159 Affected Unknown 3^rd Order Combinations of DNA Repair & Genomic Stability Factor RAD51 Family, in Silico

Shriprakash Sinha

Subject: Biology And Life Sciences, Biochemistry And Molecular Biology Keywords: WNT pathway; porcupine inhibitor ETC-1922159; sensitivity analysis; colorectal cancer; unknown biological hypotheses; combinatorial search space; support vector ranking; DNA repair and genomic stability factor RAD51

Online: 1 November 2017 (05:08:04 CET)

Show abstract| Download PDF| Share

DNA repair helps in maintaining the proper and healthy functioning for the cells in the human body. Failure in DNA repair process can lead to aberrations as well as tumorous stages. There are various types of damages that a DNA can go through, one of which is the DNA double strand breaks (DSB) that can be repaired via homologous recombination (HR). RAD51 plays a central role in HR and has been implicated as a negative/poor prognostic marker for colorectal adenocarcinoma, with high expression in colorectal cancer. Mechanistically, RAD51AP1 facilitates RAD51 during the repairing process by binding with RAD51 via two DNA binding sites, thus helping in the D-loop formation in the HR process. Often, in biology, we are faced with the problem of exploring relevant unknown biological hypotheses in the form of myriads of combination of factors that might be affecting the pathway under certain conditions. For example, RAD51AP1-XRCC2 is one such 2^nd order combination whose relation needs to be tested under the influence recently developed Porcupine-WNT inhibitor ETC-1922159. The x-ray repair cross complementing XRCC family is known to work as a mediator or stabilizer for RAD51 during the HR process. The inhibitor is known to suppress Porcupine and thus inhibit a range of oncogenes known to be directly or indirectly affected by the Wnts. In a recent unpublished work in bioRxiv, we had the opportunity to rank these unknown biological hypotheses for down regulated genes at 2^nd order level after the drug was administered. The in silico observations showed that the combination of RAD51AP1-XRCC2 was assigned a relatively lower rank, thus validating the pipeline's efficacy with the confirmed wet lab experiment that indicate that both RAD51AP1 and XRCC2 were down regulated after treatment in cancer cells. Here, we take one step further by in silico analysis of the 3^rd order combinations of RAD51-X-X & RAD51AP1-X-X (X can be known or unknown factor), from a range of 100 randomly picked down regulated genes after ETC-1922159 treatment. The pipeline uses the density based HSIC (Hibert Schmidth Information Criterion) sensitivity index with an rbf (radial basis function) kernel, which is known to be highly effective in sensitivity analysis. Various unknown/unexplored/untested RAD51/RAD51AP1 related 3^rd order biological hypotheses emerge some of which are confirmed in wet lab, while others need to be tested.

Preprint ARTICLE | doi:10.20944/preprints201808.0125.v1

Applied Robot Coverage Path Planning with Multiple Decision Making Capability under Uncertainty using Knowledge Inference with Hedge Algebras

Hai Van Pham, Philip Moore

Subject: Computer Science And Mathematics, Robotics Keywords: robotics; coverage path-planning; knowledge reasoning and inference; hedge algebras; decision-support systems

Online: 6 August 2018 (14:06:19 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202109.0299.v1

Local Thermal Rates and Gradients in Laser Powder Bed Fusion Metal Additive Manufacturing Method: Computer Simulation

Hamed Hosseinzadeh

Subject: Engineering, Mechanical Engineering Keywords: Metal 3D printing; Additive manufacturing; Powder bed fusion; Thermal simulation; Thermal history

Online: 17 September 2021 (09:28:45 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201908.0289.v1

Artificial Intelligence and Convolutional Neural Network for Recognition of Human Interaction by Video from Drone

Ghazal Shamsipour, Saied Pirasteh

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: drone video; human action recognition; CNN; Support vector machine (SVM)

Online: 28 August 2019 (03:52:22 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints201909.0305.v1

Beyond the Toolpath: Site-Specific Melt Pool Size Control Enables Printing of Extra-Toolpath Geometry in Laser-Wire Directed Energy Deposition

Brian T. Gibson, Brad S. Richardson, Taylor W. Sundermann, Lonnie J. Love

Subject: Engineering, Control And Systems Engineering Keywords: site-specific; melt pool size; control; closed-loop; additive manufacturing; Directed Energy Deposition; 3D printing; metal; Titanium; lasers

Online: 27 September 2019 (08:26:46 CEST)

Show abstract| Download PDF| Share

Preprint ARTICLE | doi:10.20944/preprints202011.0628.v1

Electrochemical Sensors and Determination for Heavy Metal by Rotating Disk Platinum Electrode and Chronoamperometric Method

Ahmad Alkhawaldeh, Ayat Alzawahreh, Rawia Alkhawaldeh

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Heavy Metal; Chronoamperometric; Platinum Electrode; Rotating Disk

Online: 25 November 2020 (10:03:38 CET)

Show abstract| Download PDF| Share

Preprint REVIEW | doi:10.20944/preprints202107.0299.v1

Preparation methods for Graphene, Metal and Polymer-based Composites for EMI Shielding Materials: State of the Art of Conventional and Machine Learning Methods

Saba Ayub, Beh Hoe Guan, Faiz Ahmad, Muhammad Faisal Javed, Amir Mosavi, Imre Felde

Subject: Chemistry And Materials Science, Biomaterials Keywords: Electromagnetic inferences; Shielding, Graphene; Metal; Polymer; Formation Methods.

Online: 13 July 2021 (11:23:46 CEST)

Show abstract| Download PDF| Share

Preprint COMMUNICATION | doi:10.20944/preprints202207.0329.v1

Biomanufacturing for Space-Exploration – What to Take and When to Make

Nils J.H. Averesch, Aaron J. Berliner, Shannon N. Nangle, Spencer Zezulka, Gretchen L. Vengerova, Davian Ho, Cameran A. Casale, Benjamin A.E. Lehner, Jessica E. Jessica Snyder, Kevin B. Clark, Lewis R. Dartnell, Craig S. Criddle, Adam P. Arkin

Subject: Engineering, Bioengineering Keywords: in-space biomanufacturing; space synthetic biology; space bioprocess engineering; biological life-support systems; in situ resource utilization; circular economy

Online: 21 July 2022 (11:01:29 CEST)

Show abstract| Download PDF| Supplementary Files| Share

Search Results

766 articles found