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An Improved Heat Transfer Model for Flame Resistant Fabric Used in Thermal Protective Clothing

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Journal of Donghua University(English Edition) 2008年第6期25卷 664-669页

作者：朱方龙张渭源孙晓锋 fashion institute Zhongyuan University of Technology fashion institute Donghua University Department of Chemistry Northwestern Polytechnic University

An improved numerical heat transfer model considering pyrolysis effect is proposed to predict thermal performance of heat-resistant fabric subjected to radiant heat flux. The model incorporates the heat-induced changes in fabric thermophysical properties. The new model has been validated with data from modified Radiant Protective Performance (RPP) tests of flame-resistant cotton fabrics. Comparison with experimental data shows that the predictions of mass loss rates and temperature profiles within the charring material and skin simulant are in reasonably good agreement with the experiments. Results from the numerical model contribute to a better understanding of the heat transfer process within flame-resistant fabrics under high heat flux conditions, and also to establish a systematic method for analyzing heat transfer in other fibrous materials applications.

关键词： heat transfer model flame resistant fabric pyrolysis

Chinese Childrenswear Brand Development Path Based on Differentiated Positioning

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Journal of Donghua University(English Edition) 2019年第2期36卷 198-204页

作者： HOU Fengxian fashion Faculty Zhejiang Fashion Institute of Technology

Sorting and collecting the data by questionnaire survey and literature analysis,the childrenswear brand elemental analysis is *** development goal of differentiated positioning of Chinese childrenswear brands is *** modules which influence the brand differentiated development were extracted to establish the hierarchical analysis framework for the differentiated positioning development of Chinese childrenswear *** matrix diagram is constructed by using the analytic hierarchy process(AHP).According to the data analysis and judgment,the core elements,basic elements and auxiliary elements are identified which support the development of differentiated positioning of Chinese childrenswear *** clear development path of differentiated positioning of Chinese childrenswear brands is formed,namely to enhance the core essential factors as the key point,to grasp the elements’spirit exactly in differentiated positioning of brand style,childrenswear color feature,green and security of products quality and retail prices which influence the brand differentiated *** Chinese existing technical advantages was given full play by providing the basic support for the differentiated development of childrenswear *** elements were heleped to grow by making auxiliary elements play a greater *** goal was achieved to improve the market competitiveness by development of differentiated positioning of Chinese childrenswear brands.

关键词： differentiated positioning childrenswear brands analytic hierarchy process(AHP) element development path

Body Classification Based on Adaptive Made-to-Measure( MTM ) Framework

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Journal of Donghua University(English Edition) 2014年第4期31卷 554-556页

作者：刘冠彬肖平 College of Art & fashion Design Xiamen University of Technology fashion institute Donghua University

The purpose of this paper was to develop a reliable body shape analysis approach based on cluster analysis, k. nearestneighbor( KNN), and multi-class support vector machine( MSVM). Firstly,a total of 357 Chinese men were selected to make a dataset. Secondly, the experiences of these data were not accumulated to build general models. Five body angles were extracted as independent variables. Four clusters were the most efficient cluster number for our study. Finally,the accuracy of body classifications is compared between KNN and MSVM. In this study,the body classification framework was studied to transfer the body feature data to intuitive types. Moreover,the adaptive made-tomeasure( MTM) framework based on body classification was studied. The case demonstration and analysis show the effectiveness of the study.

关键词： body shape analysis adaptive MTM framework body classifications

Method of Weave Design Using the Concept of Auxiliary Dobby Shaft

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Journal of Donghua University(English Edition) 2010年第3期27卷 335-338页

作者：鲁佳亮徐铮 College of Materials and Textiles Zhejiang Science & Technology University fashion Art Design institute Donghua University China National Silk museum

The craft of auxiliary dobby shaft is one of methods used in the traditional figured woven textiles and especially brocade in *** on the principle of auxiliary dobby shaft,a new method of weave design was *** relevant arrangement of warp and weave design were *** is shown that this method can be applied on one electronic jacquard loom with single warp beam for new product development and *** this effect will open up a new way to reproduce traditional fabrics in order to protect and develop Chinese traditional culture.

关键词： auxiliary dobby shaft jacquard fabric weave design

Research on Catalytic Properties of Palladium Catalyst Prepared by Biological Reduction Method

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China Petroleum Processing & Petrochemical technology 2013年第2期15卷 24-30页

作者： Zhang Feng Fu Jiquan School of Materials Science and Engineering Beijing Institute of Fashion Technology

This paper relates to highly dispersed supported Pd/MWCNTs and Fd/a-Al2O3 catalysts prepared by biological reduction method. The physico-chemical properties and the difference in catalytic activity of Pd catalysts prepared by bio- logical reduction method and chemical method, respectively, were investigated using XRD, TEM and specific surface char- acterization methods. The catalytic properties of catalysts were studied through activity evaluation means. The test results showed that the catalysts prepared by biological method were characteristic of small Pd nanoparticle size, good dispersion and low agglomeration, while possessing a high activity and stability in styrene hydrogenation reaction in comparison with catalysts prelgared via the chemical method.

关键词： Pd/MWCNTs Pd/a- Al2O3 biological reduction ginkgo leaf Pd nanoparticles

Three-Dimensional Prototypes and Evaluation of Their Structure and Form

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Journal of Donghua University(English Edition) 2019年第2期36卷 205-211页

作者： MU Lin ZHAO Yuxiao School of fashion Art and Engineer Beijing Institute of Fashion Technology

In order to reveal the appearance of the clothing prototype on the human body,the characteristics of the human body’s structure above the waist section were *** on the experimental data of the fit prototype,three-dimensional prototypes features were comparatively *** then objectively evaluating the relationship was conducted between the planar structure lines of different prototypes and the human *** results showed that the prototypes analyzed basically conformed to the size of the human ***,when they were worn on the human body,there were problems in the structure and *** main reason was that the side seam was skewed to different *** results of this study provide reference for many practitioners to choose prototypes.

关键词： prototype human body three-dimensional forming planar structure

Classification of Preparation Methods and Wearability of Smart Textiles

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Journal of Donghua University(English Edition) 2022年第4期39卷 379-391页

作者： FANG Jialu DU Jianxia School of fashion Beijing Institute of Fashion TechnologyBeijing 100029China

In recent years,smart textiles have attracted the attention of scholars from all walks of life,but there is an imbalance between functionality and usability,which affects their marketization ***,five representative smart textiles are introduced and their respective wearability is described around preparation ***,it is concluded that the preparation methods of smart textiles can be divided into two categories:fiber methods and finishing *** fiber methods refer to making smart fibers into smart *** made by fiber methods are breathable and feel good in the hand,but the mechanical properties are influenced by the production equipment,and the process cost is *** finishing methods refer to the functional finishing of ordinary *** the finishing method is simple and convenient,it may reduce the comfort of the ***,applications and new research in various fields of smart textiles are presented with promising *** is anticipated that this review will serve as a theoretical basis for future research and development of smart *** are expected to create new technologies to overcome the tension between functionality and usability,as well as to increase user comfort and convenience.

关键词： smart textiles classification of preparation method wearability functionality fabric comfort

Cooperative output regulation of heterogeneous directed multi-agent systems: a fully distributed model-free reinforcement learning framework

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Science China(Information Sciences) 2025年

作者： Xiongtao SHI Yanjie LI Chenglong DU Huiping LI Chaoyang CHEN Weihua GUI Guangdong Key Laboratory of Intelligent Morphing Mechanisms and Adaptive Robotics School of Mechanical Engineering and Automation Harbin Institute of Technology (Shenzhen) School of Automation Central South University School of Marine Science and technology Northwestern Polytechnical University School of Information and Electrical Engineering Hunan University of Science and Technology

In this paper, the cooperative output regulation (COR) problem of a class of unknown heterogeneous multi-agent systems (MASs) with directed graphs is studied via a model-free reinforcement learning (RL) based fully distributed eventtriggered control (ETC) strategy. First, we consider the scenario that the exosystem is accessible globally to all agents, an internal model-based augmented algebraic Riccati equation (AARE) is constructed, and its solution is learned by the proposed model-free RL algorithm via online input-output data. Further, for the scenario that the exosystem is accessible only to its adjacent followers, the distributed observers are designed for each agent to get the state of the exosystem, and an internal modelbased fully distributed adaptive ETC protocol is then synthesized to construct the corresponding AARE, and the feedback gain matrix is learned in a model-free fashion. The model-free RL-based control protocol proposed in this paper can not only remove the prior knowledge of agents’ dynamics, but also release the dependence on global information by the adaptive event-triggered mechanism (ETM) and the new graph-based Lyapunov function. Finally, simulation results are illustrated to show the feasibility and effectiveness of the proposed control scheme.

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Evaluation of Tactile Comfort of Underwear Fabrics

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Journal of Donghua University(English Edition) 2022年第5期39卷 496-504页

作者： WANG Jing DU Jianxia School of fashion Beijing Institute of Fashion TechnologyBeijing 100105China

From the perspective of the tactile comfort of underwear fabrics, 179 kinds of underwear fabrics were selected to test tactile related performance indices using the fabric touch tester(FTT), and the relationship between physical indicators and tactile sensation of different fiber types of underwear fabrics was studied to establish a digital regression model by a stepwise regression method. The experimental results show that fabric fiber composition, compression characteristics, surface friction coefficient, surface roughness amplitude, bending characteristics, and maximum thermal conductivity significantly affect the level of tactile comfort of underwear fabrics, the composition of underwear fabrics has a significant effect on soft touch, and the clustering method and the grading method can effectively rate the level of tactile comfort of underwear fabrics.

关键词： underwear fabrics tactile comfort objective tactile classification stepwise regression