无穷积态,无穷和算子与连分数组合能级

 给予分数Hall效应以普遍的分数微积分数学形式理论描述.并给出无穷积态存在三条定理.     

An Experimental Study of Aspect Ratio on the Tensile Properties of an Elastic Fabric for Making-up of Pressure Garments

The“cut-and-sewn” pressure garments are normally tailored made in various sizes according to the size of human body as well as the area of burn wounds.When a tubular pressure garment is cut in different length and width measurements,different aspect ratio will be occurred on the elastic fabric for making up the pressuregarment. Many therapists in Hong Kong concerned the change of aspect ratio may affect the tensile properties of the elastic fabric and ultimately will affect the skin-and-garment interface pressure for the patient.The aim of     

A Study of Interface Pressure at the Seamed Area of Pressure Garments

Pressure garments constructed with elastic fabric play an important role in burn rehabilitation by helping to prevent or reduce the formation of hypertrophic scars. For clinical effectiveness, these garments are made in appropriate size for individual patient in order to provide an appropriate amount of skin-and-garment interface pressure on the patient.The seam area of pressure garments has marked impact on the comfort and durability of the pressure garments.Comments from the patients and occupational therapists have indicated that discomfort arose in the seam zone.Line marks appeared on the skin of patients under the seamed areas of pressure garments. This may be caused by uneven or Iocalised interface pressure at the seamed area. In this paper, the changes of interface pressure between the seamed and unseamed areas were investigated. The aim is to provide an understanding of the effect of seams on the interface pressure in order to assist the therapists and/or garment makers to choose an appropriate s     

Effect of Splice Marking on Fabric Roll Planning

Minimising the fabric loss during spreading can reduce the total production costs of garment manufacturing. Although marker planning is a major determinant of material utilisation, considerable savings on materials also will be made from the area of spreading loss. In the spreading process, it is general to have variance on the fabric yardage between each fabric roll, and the number of splice markings on each cutting lay is also varied. This paper aim to study how the fabric roll planning and the number of splice marks of a cutting lay will affect the material usage in the spreading process. By using a genetic algorithm approach, the amount of fabric to be saved by optimising the fabric roll sequence was derived by comparing the best arrangement and the worst arrangement of the fabric roll sequences of a cutting lay. The result of the study showed that both fabric roll planning and the number of splice marking have effect on the fabric loss. The findings could help the apparel manufacturer to reduce the     

分数Fourier变换与分数微分谱理论

用比较法研究分数Fourier变换。在给出分数Fourier变换的特性后，建立一类分数微分新结构谱。     

关于陕南生态桑防护林建设及保护汉江水源的几点思考

生态环境质量直接关系到资源的可持续利用和社会经济的可持续发展。蚕桑生态系统具有水土保持功能、生态环保、休闲文化多种功能,加强陕南生态桑防护林建设,发挥其对汉江水源保护的服务功能,通过栽桑养蚕、开发绿化桑和果桑资源及蚕桑副产物综合利用,拓宽蚕桑产业链,促进蚕桑产业升级,实现水源地生态保护与经济社会发展的双赢。     

A STUDY OF SEAM STRENGTH AND EXTENSIBILITY FOR PRESSURE GARMENTS

Pressure garments are functional garments designed for medical purposes and arc normally used under prolonged stress. The stress across seams is related to the size of the wearer and the fit and the garment, the more close fitting a garment, the greater stress is put on the seam. Since pressure garments are subjected to appreciable stress during wear, seams with the required strength and extensiblity are particular important. The seam type, stitch type, stitch density and thread strength are the main factors determining the strength and extensibility of a seam. In this paper, investigation of seam strength and extensibility are made on four types of seams which have been used for making pressure garments. Five different types of stitch densities and two sizes of sewing thread are used on each type of scam to be tested. The seaming conditions of the selected fabric are also examined.     

家蚕白僵病的发生及防治

自僵病的发生与病原苗数量、蚕室环境、气候等条件都有极大的关系,掌握发病规律,采取有效的预防措施,最大限度地减少白僵病发生,提高家蚕生产的经济效益。     

汉台区桑树主要害虫发生规律及防治研究

通过调查研究，明确了汉台区桑园害虫的发生种类，常见种类和主要种类，并了解主要害虫的发生特点和主要习性，提出了切合当地实际的桑树害虫综合防治措施。     

Effect of Fabric Elongation on the Making Up of Pressure Garments

Pressure garments are widely used in Hong Kong andmany other countries for burn rehabilitation.Thesegarments are mainly made of elastic Lycra fabrics andtailor-made to individual patient's measurement toprovide an appropriate amount of skin-garment in-terface pressure for medical treatment.However,thefabric tension would be reduced due to fabric elonga-tion under prolonged period of stress,and thus theskin-garment interface pressure cannot be main-tained after repeated use of the garment.This paperaims to study the behaviour of fabric elongation of thefabrics commonly used for making pressure garmentsin U.K.and/or Hong Kong.Attempts to correct theexisting practice of drafting the pressure garments forproviding a more effective clinical treatment.