Modeling and Computer Simulation of the Compressional Behavior of Fiber Assemblies: Part I: Comparison to van Wyk's Theory

A model is presented that allows prediction of the properties of a fiber assembly under compression from the physical properties of its component fibers, taking into account both static and kinetic friction. Unlike previous models, this model is not based on the assumed behavior of idealized bending elements. Computer simulations are run ..

Chemical Structural Investigation of the Cotton Fiber Base and Associated Seed Coat: Fourier-Transform Infrared Mapping and Histochemistry

Fourier-transform mid-infrared mapping and histochemical staining are used to reveal the location and relative importance of chemical components involved with the base of cotton fibers and their associated seed coat. These two complementary techniques are focused on the nature of the chemical components that hold cotton fibers at their ba..

Objective Evaluation Equation for the Appearance of Swinging Flared Skirts

To develop an objective evaluation equation for the aesthetic appearance of swinging flared skirts, subjective appraisals are obtained from 29 girls, aged 20 to 22, by the paired comparison method. The subjective values are regressed with basic mechanical parame ters and the vibrational parameters of the fabrics from which the skirts are ..

Influence of Flame Retardant on Manufacturing Carbon Fiber Absorbents

A carbon fiber absorbent is prepared using a rayon-based fabric as a precursor, and a composite flame retardant of ammonium sulfate and dibasic ammonium phosphate as a pretreatment agent is used to prepare the carbon fiber absorbent in a continuous three- stage process in a high temperature environment of oxidation, carbonation, and activ..

Uniaxial Tensile Properties of Yarns: Effects of Moisture Level on the Shape of Stress-Strain Curves

With the aim of clarifying the complex shapes of the stress-strain curves of yams such as wool and silk and improving the reproducibility of the experimental results achieved through their mechanical characterization, nylon 6,6 yams consisting of one, three, nine, and thirty filaments are selected as a modeling system. Moreover, the uniax..

Luminescence and Mechanical Properties of Photoluminescent Core Bicomponent Fibers

Photoluminescent fibers with a sheath-core morphology are produced to impart good mechanical properties. Both photoluminescent and mechanical properties are examined for these fibers with respect to photoluminescent pigment concentrations in the core, draw ratios, and polymer types. The photoluminescent pigment concentration in the core o..

(3차)강남사옥 신축공사 시공자 입찰관련 공지사항

질의 사항에 대한 답변을 올려드리오니 확인 바랍니다.

Selecting Optimal Interlinings with a Neural Network

This paper reports on the construction of an integrated tool consisting of a neural network and subjoined local approximation technique for application to the sewing process, especially for selecting optimal interlinings for woolen fabrics. A single hidden layer neural network is constructed with five input nodes, ten hidden nodes, and tw..

Objective Evaluation of Garment Seams Using 3D Laser Scanning Technology

This paper reports on the development of an objective method for evaluating the degree of puckering in garment seams. With this method, a garment is put on a dummy and a seam is scanned by a 3D laser scanning system. The geometric surface of the scanned seam is then processed with a 2D digital filter to obtain a pucker profile by removing..

Determining Mechanical Properties of Yarns and Two-Ply Cords from Single-Filament Data: Part I: Model Development and Predictions

The objective of this research is to construct a computer model that can predict the properties of flat yams, twisted yams, and twisted cords from single-filament data. In this model, a modulus versus strain curve is obtained by taking the derivative of the average stress-strain curve from single-filament tensile tests. The distribution o..