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第七届亚澳复合材料会议

作者： K.C.Lee H.R.Yu J.H.Chen Department of Textile Engineering Chinese Culture UniversityTaipeiTaiwan Department of Chemical and Materials Engineering and Master Program of NanomaterialsChinese Culture UniversityTaipeiTaiwan

In this experiment, acrylic and carbon fiber fabrics made of orthogonal three-dimensional, three-dimensional fabric with three-dimensional space can be consumed when the incident electromagnetic wave, The main purpose causes the electromagnetic wave (EMI) absorption value to increase, and achieving the purpose protection of the electromagnetic wave.

关键词： orthogonal three-dimensional fabric carbon fiber acrylic fiber electromagnetic wave absorber

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Integration of computer based problem solving into engineering curricula

Integration of computer based problem solving into engineeri...

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2008 ASEE Annual Conference and Exposition

作者： Raubenheimer, Dianne Brent, Rebecca Joines, Jeff Craig, Amy North Carolina State University Department of Adult and Higher Education College of Education NCSU Education Designs Inc. Education Designs Inc. Cary NC United States College of Engineering North Carolina State University National Effective Teaching Institute Chemistry and Science Department NC State University Textile Engineering Program College of Engineering Student-Owned Computing College of Engineering Department of Industrial and Systems Engineering NC State University

The primary objectives of this engineering project are (1) to examine how to develop students' problem solving and computational skills early in their program of study and (2) to further enhance these skills by building upon critical computing concepts semester after semester. The project is a component of NC State University's quality enhancement plan, which focuses on the use of technology in enhancing student learning. The project stems from new introductory computer-based modeling courses that were created in two engineering departments, and has expanded to include other departments. We give an overview of the project, provide an example of how a problem is modeled and broken apart, present some assessment results, and discuss the emerging lessons being learned. © American Society for engineering Education, 2008.

关键词： Problem solving

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Advanced Flexible Carbon‑Based Current Collector for Zinc Storage

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Advanced Fiber Materials 2022年第6期4卷 1500-1510页

作者： Hao Jia Minghui Qiu Chunxia Tang Hongqi Liu Jinlin Xu Benjamin Tawiah Shou‑xiang Jiang Xiangwu Zhang Key Laboratory of Eco‑Textiles Ministry of EducationJiangnan UniversityWuxiJiangsuPeople’s Republic of China Institute of Textiles and Clothing The Hong Kong Polytechnic UniversityHong KongPeople’s Republic of China Department of Industrial Art(Textiles) Kwame Nkrumah University of Science and TechnologyKumasiGhana Fiber and Polymer Science Program Department of Textile EngineeringChemistry and ScienceWilson College of TextilesNorth Carolina State UniversityRaleighNC 27695‑8301USA

Carbon cloth(CC)-based electrodes have attracted extensive attention for next-generation wearable energy-storage devices due to their excellent electrical conductivity and mechanical ***,the application of conventional CC-based electrodes for zinc(Zn)storage severely hinders Zn ion transport and induces deleterious Zn dendrite growth,resulting in poor electrochemical ***,a novel oxygen plasma-treated carbon cloth(OPCC)is rationally designed as a current collector for flexible hybrid Zn ion supercapacitors(ZISs).The modified interface of OPCC with abundant oxygenated groups enables enhanced electrolyte wettability and uniform superficial electric field distribution.A prolonged working lifespan for Zn electrodeposition is achieved by the OPCC due to the improved interfacial kinetics and homogenized ion *** as-prepared hybrid ZIS also delivers excellent cycling endurance(98.5%capacity retention for 1500 cycles)with outstanding operation stability under various extreme *** facile surface modification strategy provides a new way for developing future flexible electrodes for wearable electronic products.

关键词： Zinc ion supercapacitor Carbon cloth Oxygen plasma treatment Interface kinetics

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3D printing of silk fibroin-based hybrid scaffold treated with platelet rich plasma for bone tissue engineering

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Bioactive Materials 2019年第1期4卷 256-260页

作者： Liang Wei Shaohua Wu Mitchell Kuss Xiping Jiang Runjun Sun Reid Patrick Xiaohong Qin Duan Bin School of Textile Science and Engineering Xi'an Polytechnic UniversityXi'an710048PR China Mary&Dick Holland Regenerative Medicine Program Division of CardiologyDepartment of Internal MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA Key Laboratory of Textile Science&Technology Ministry of EducationCollege of TextilesDonghua UniversityShanghai201620PR China College of Textiles&Clothing Qingdao UniversityQingdao266071PR China Department of Pathology&Microbiology College of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA Department of Surgery College of MedicineUniversity of Nebraska Medical CenterOmahaNE68198USA Department of Mechanical and Materials Engineering University of Nebraska-LincolnLincolnNE68516USA

3D printing/bioprinting are promising techniques to fabricate scaffolds with well controlled and patient-specific structures and architectures for bone tissue *** this study,we developed a composite bioink consisting of silk fibroin(SF),gelatin(GEL),hyaluronic acid(HA),and tricalcium phosphate(TCP)and 3D bioprinted the silk fibroin-based hybrid *** 3D bioprinted scaffolds with dual crosslinking were further treated with human platelet-rich plasma(PRP)to generate PRP coated ***/Dead and MTT assays demonstrated that PRP treatment could obviously promote the cell growth and proliferation of human adipose derived mesenchymal stem cells(HADMSC).In addition,the treatment of PRP did not significantly affect alkaline phosphatase(ALP)activity and expression,but significantly upregulated the gene expression levels of late osteogenic *** study demonstrated that the 3D printing of silk fibroin-based hybrid scaffolds,in combination with PRP post-treatment,might be a more efficient strategy to promote osteogenic differentiation of adult stem cells and has significant potential to be used for bone tissue engineering.

关键词： 3D bioprinting Hybrid scaffold Coating Growth factor cocktail Tissue engineering

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Electrospun Nanofibers Enabled Advanced Lithium−Sulfur Batteries

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Accounts of Materials Research 2022年第2期3卷 149-160页

作者： Jiadeng Zhu Hui Cheng Pei Zhu Ya Li Qiang Gao Xiangwu Zhang Chemical Sciences Division Oak Ridge National LaboratoryOak RidgeTennessee 37831United States Fiber and Polymer Science Program Wilson College of TextilesNorth Carolina State UniversityRaleighNorth Carolina 27695-8301United States College of Textile Science and Engineering International College of SilkZhejiang Sci-Tech UniversityHangzhou 310018China School of Chemistry and Chemical Engineering Yangzhou UniversityYangzhou 225002China

CONSPECTUS:Lithium−sulfur(Li−S)batteries have been extensively studied because both S and Li have high theoretical capacities,and S is abundant and environmentally ***,their practical applications have been hindered by several challenges,including poor conductivity of S and its intermediates,shuttle effects of polysulfides,Li dendrite growth,*** efforts have been taken to tackle these issues by developing functional S host materials,separators and interlayers,solid-state electrolytes,etc.,during the past *** to structurally complicated materials and intricate preparation approaches,electrospun nanofibers have obtained tremendous interests since they have played an extremely crucial role in improving the overall performance of Li−S cells due to their unique features such as easy-setup,substantial surface area,outstanding flexibility,high porosity,excellent mechanical properties,etc.

关键词： fibers porosity conductivity

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Nanofiber-Based Membrane Separators for Lithium-ion Batteries

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MRS Online Proceedings Library (OPL) 2015年第1期1718卷 157-161页

作者： Mataz Alcoutlabi Hun Lee Xiangwu Zhang Department of Mechanical Engineering University of Texas-Pan American Edinburg TX 78539 USA. Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University Raleigh NC 27695-8301 USA

Nanofiber-based membranes were prepared by two different methods for use as separators for Lithium-ion batteries (LIBs). In the first method, Electrospinning was used for the fabrication of Polyvinylidene fluoride PVDF nanofiber coatings on polyolefin microporous membrane separators to improve their electrolyte uptake and electrochemical performance. The nanofiber-coated membrane separators show better electrolyte uptake and ionic conductivity than that for the uncoated membranes. In the second method, Forcespinning® (FS) was used to fabricate fibrous cellulose membranes as separators for LIBs. The cellulose fibrous membranes were made by the Forcespinning® of a cellulose acetate solution precursor followed by a subsequent alkaline hydrolysis treatment. The results show that the fibrous cellulose membrane-based separator exhibits high electrolyte uptake and good electrolyte/electrode wettability and therefore can be a good candidate for high performance and high safety LIB separators.

关键词： polymer energy storage nanostructure

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Assessment of the Total Organic Carbon and Conductivity in Consecutive Dyeings with Reactive Dyestuffs Using Treated Effluent by UV/H202 Photocatalysis

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Journal of Chemistry and Chemical engineering 2014年第2期8卷 139-144页

作者： Leite Adilson da SilvaI Barco Luiz Trindade Nelson Barros Araujo Mauricio de Campos Rosa Jorge Marcos Tambourgi Elias Basile Santana José Carlos Curvelo Chemical Textile Post Graduation Department College of Technology SENAI Antoine Skaf $6o Paulo 03008-020 Brazil Textile and Fashion Post Graduation Program S6o Paulo University S6o Paulo 03828-000 Brazil College of Chemical Engineering State University of Campinas Campinas 13083-852 Brazil Production Engineering Post Graduation Program Nove de Julho University Sao Paulo 05001-100 Brazil

The paper was monitored the conductivity （g.L＂l of NaCI）, the absorbances values （Abs） and the amount of TOC （total organic carbon）, before and after five consecutive dyeings made with reuse water, obtained from treated effluent by UV/H202 photocatalysis. All rates of decolorization were above 92%, the removal of total organic carbon was above 89% in all treatments and the economy of NaCI was from 3.10 in the first recipe, 3.17 in the second, 3.49 in the third, 3.79 in the fourth and 4.05 in the fifth recipe. The five dyeings compared with same dyeings made with deionized water presented a color deviation （AE＊） below 1. The conventional dyeings would consume 80 L/kg against 40 L/kg used in the dyeing process proposed in this study, representing a great economy of water, with no discharge of effluents.

关键词： Conductivity reactive dyestuffs reuse of water photocatalysis textile effluent.

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US Army Aviation air movement operations assignment, utilization and routing

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Journal of Defense Analytics and Logistics 2023年第1期7卷 2-28页

作者： Nelson, Russell King, Russell McConnell, Brandon M. Thoney-Barletta, Kristin Operations Research Graduate Program North Carolina State University Raleigh NC United States Department of Industrial and Systems Engineering North Carolina State University Raleigh NC United States Center for Additive Manufacturing and Logistics North Carolina State University Raleigh NC United States Department of Textile and Apparel Technology and Management North Carolina State University at Raleigh Raleigh NC United States

Purpose: The purpose of this study was to create an air movement operations planning model to rapidly generate air mission request (AMR) assignment and routing courses of action (COA) in order to minimize unsupported AMRs, aircraft utilization and routing cost. Design/methodology/approach: In this paper, the US Army Aviation air movement operations planning problem is modeled as a mixed integer linear program (MILP) as an extension of the dial-a-ride problem (DARP). The paper also introduces a heuristic as an extension of a single-vehicle DARP demand insertion algorithm to generate feasible solutions in a tactically useful time period. Findings: The MILP model generates optimal solutions for small problems (low numbers of AMRs and small helicopter fleets). The heuristic generates near-optimal feasible solutions for problems of various sizes (up to 100 AMRs and 10 helicopter team fleet size) in near real time. Research limitations/implications: Due to the inability of the MILP to produce optimal solutions for mid- and large-sized problems, this research is limited in commenting on the heuristic solution quality beyond the numerical experimentation. Additionally, the authors make several simplifying assumptions to generalize the average performance and capabilities of aircraft throughout a flight. Originality/value: This research is the first to solve the US Army Aviation air movement operations planning problem via a single formulation that incorporates multiple refuel nodes, minimization of unsupported demand by priority level, demand time windows, aircraft team utilization penalties, aircraft team time windows and maximum duration and passenger ride time limits. © 2022, In accordance with section 105 of the US Copyright Act, this work has been produced by a US government employee and shall be considered a public domain work, as copyright protection is not available.

关键词： Aircraft Demand priority Dial-a-ride problem Helicopter routing Heuristic Military aviation Multiple refuel nodes Vehicle utilization

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Nanosized [email protected] , [email protected] @CNF and [email protected] @C composites via chemical vapour deposition method for use in advanced lithium-ion batteries

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Journal of Power Sources 2014年 253卷 366-372页

作者： Shuli Li Chen Chen Kun Fu Ryan White Chengxin Zhao Philip D. Bradford Xiangwu Zhang Fiber and Polymer Science Program Department of Textile Engineering Chemistry and Science North Carolina State University Raleigh NC 27695-8301 USA Department of Materials Science and Engineering North Carolina State University Raleigh NC 27695-8301 USA Department of Physics University of Oslo Oslo 0316 Norway

Three distinct Ge nanoparticle-filled carbon nanofiber (CNF) composites, [email protected] , [email protected] @CNF and [email protected] @C, were fabricated by chemical vapor deposition (CVD) and electrospinning techniques. These different structures were prepared by: 1) dispersing Ge nanoparticles into CNF, 2) adding carbon-coated Ge nanoparticles ( [email protected] ) prepared by CVD into CNF, and 3) depositing CVD carbon onto [email protected] , respectively. Compared with the [email protected] composite, both [email protected] @CNF and [email protected] @C had additional amorphous carbon coating fabricated by the CVD method. The three composites were studied as binder-free electrodes for rechargeable lithium-ion batteries. Raw Ge anode materials suffered from serious volume changes and nanoparticle aggregations during cycling, resulting in pulverization and capacity loss. However, carbon nanofiber and the supplemental CVD carbon layer in these nanofiber composites could help preserve the structural integrity of the alloy anode materials during repeated cycling, and consequently, lead to improved cycling stability. In this work, it was found that among the three composites, [email protected] @C exhibited the highest capacity retention of 89% at the 50th cycle due to the structurally-durable thorn-like Ge morphology and the additional CVD carbon confinement. [email protected] and [email protected] @CNF encountered rapid capacity loss because large Ge clusters were formed and jeopardized the integrity of the electrode structure during cycling.

关键词： Lithium alloy Germanium Chemical vapor deposition Electrospinning Lithium-ion battery

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A Spatial Spring Model for Predicting the Elastic Properties of 3D (4-Step) Braided Composites

A Spatial Spring Model for Predicting the Elastic Properties...

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第七届亚澳复合材料会议

作者： Wen-Liang Chen Chung-Li Hwan K.-H.Tsai Wei-Chong Liao Ph.D.Program in Mechanical and Aeronautical Engineering Feng-Chia UniversityTaiwan Department of Mechanical and Computer Aided EngineeringFeng-Chia UniversityTaiwan Graduate School of Textile EngineeringFeng-Chia UniversityTaichungTaiwan Department of Civil EngineeringFeng-Chia UniversityTaichungTaiwan

In the study, a spatial spring model has been proposed to investigate the effects of fabric parameters (such as surface braid angle, fiber volume fraction in a rectangular parallelpiped unit cell) on the effective elastic moduli of 3D (4-step) braided *** consider the crimp arrangement of the fiber tows and the interaction among the fiber tows in the unit cell, this model first treats each fiber tow as a curve composed of a series of springs with only axial rigidity, and thus discretizes the unit cell of braided composites into a finite elementmesh with both spring and solid elements.

关键词： spring model braided composite unit cell elastic modulus finite element

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