Production planning with lot-sizing and scheduling in industries where the cleaning times depend on the sequence of the products can be modelled as a mixed integer problem. However, this problem is very hard, and even small instances cannot be solved exactly in a reasonable time. We propose a division of the whole production planning problem into its two subproblems, and to solve each them inde...

In this paper, we present a fast algorithm for continuous wire-sizing under the distributed Elmore delay model. Our algorithm GWSA-C is an extension of the GWSA algorithm (for discrete wire-sizing) in CL93a]. GWSA-C is an iterative algorithm with guaranteed convergence to optimal wire-sizing solutions. When specialized to discrete wire-sizing problems, GWSA-C is an improved implementation of GW...

Compression garments apply pressure to the body to provide health benefits, such as increasing the blood circulation, shaping the body and supporting healing after medical procedures. Fabrics used for compression garments are elastic, and the amount of fabric stretching and the ability of maintaining the stretching force are directly related to the compression effectiveness. However, there is c...

Discrete gate sizing is a critical optimization in VLSI circuit design. Given a set of available gate sizes, discrete gate sizing problem asks to assign a size to each gate such that the delay of a combinational circuit is minimized while the cost constraint is satisfied. It is one of the most studied problems in VLSI computer-aided design. Despite this, all of the existing techniques are heuri...

In this study, a sizing system is proposed specifically for school-aged children in Malaysia. The sampling frame is based on the female population in the age group 7-17. For this study, 1001girls have been selected randomly from 29 different schools in urban and rural districts of Malaysia. Principal component analysis is used for key dimensions determination. Data mining has been done to devel...

Underlying fabrics can change the appearance, function and quality of the garment, and also add so much longevity of the garment. Nowadays, with the increasing use of various types of fabrics in the garment industry, their resistance to bagging is of great importance with the aim of determining the effectiveness of textiles under various forces. The current paper investigated the effect of unde...

The social fabric is the force that brings the society together so that there is social cohesion and stability. It is only when the society is in a stable condition that development and the realisation of social goals are attainable, hence the need to strengthen the social fabric. Over the past decade the social fabric of Zimbabwe has been in a free fall, leading to a state of anarchy and fear....

This paper describes methods pertaining to the vision-guided robotic control of fabric motion for performing simulated joining operations for apparel manufacturing. The determination of robot motion paths is based on visual information defining the position of the fabric edges in world coordinates. The usefulness of the shape analysis and motion control algorithms is demonstrated via experiment...

Radiation induced grafting of acrylic acid (AA) and binary mixture of acrylic acid/N-vinyl pyrrolidone (NVP) has been carried out on poly(ethylene terephthalate) (PET) fabric. The grafted fabrics are immobilized with collagen via carbodiimide coupling to make the fabric bioreceptive and biocompatible for cell seeding and grafts. Atomic force microscopy and scanning electron microscopy observati...