Investigation on Bending and Creasing of Woven Fabrics under Low Curvature

Under the assumption of semi - circular form for a fabric bend, creasing of fabric strips and compression of fabric loops are analyzed by neglecting the structural complexity of the fabric. The relationship between the creasing force and deformation are deduced using an energy method and solutions are given for a linearly elastic material with constant internal frictional constraint. The agreements between the theoretical predictions and experimental results are very satisfactory.

MOC Calls for Increasing Exports

Recently the foreign trade department ofthe Ministry of Commerce(MOC)releaseda report claiming for spurring the exports.In the report,consumption,investmentand net exports drove China’s GDP to in-crease 4.7%,4.6% and 2.6% respectivelyin 2007,and their contributions were 4.2%,4.0% and 0.8% respectively in 2008.

中国转基因作物的环境安全评介与风险管理

基因工程技术是21世纪最伟大的科学技术之一,基因工程技术的应用开启了一次全新的农业"绿色革命"。自1996年美国第一例商业化转基因作物诞生以来,全球转基因作物的种植快速平稳增长。转基因作物的种植具有巨大的潜在效益,但是其可能带来的环境风险已成为了人们关心和争论的焦点。转基因作物的安全性已然成为许多国家和政府不得不面对的主要议题之一。在过去的20年里。

FACTORS ANALYSIS ON IMPROVING THE PRODUCTIVITY OF THE NONFERROUS METALS INDUSTRY(2)

Our research and investigation proves thatthe growth rate of the productivity of thenonferrous metals industry is much lower thanthat of investment,and that the potential for in-creasing productivity iS very grear,in spite of thecompplicated influence of multiple weak joints re-strieting the increase of the productivity.To solvethese problems,following policies should

Wrinkling analysis of creased rectangular membrane

In this paper,the wrinkle-crease interaction behavior of a rectangular membrane under edge tension is simulated.The creased membrane is modeled by using a Modified Two-Parameter model.In this model,two crease parameters,i.e.the effective modulus of creased membrane and the residual stress from creasing,are computed by using MacNeal's method that was firstly applied directly in a flat membrane with the local crease.We have proposed a method to solve the wrinkling computing issue of the creased membrane by using a Direct Perturb-Force technique in our previous work.Based on our method,the effects of crease location on the wrinkle-crease interaction behavior can be evaluated accurately.These results will be of great benefit to the analysis and the control of the wrinkles in the membrane structures.

Puppets Still Captivating Audiences

CHINESE puppet and shadowplays are said to date fromthe 11th century B.C.,reaching their peak of popularitybetween the 10th and 13th centu-ries.For thousands of years theyhave embodied the wit and artistryof Chinese artists.Today’s

A STUDY ON THE PHYSICAL MECHANISM OF RESISTANCE OF MAIN POPLAR STRAINS AGAINST CRYPTORRHYNCHUS LAPATHIL.IN NORTH CHINA

The physical mechanism of resistance of poplar against Cryptorrhynchus lapathiL.is directly correlated with the morphological structure of bark,concerning the following 5aspects:1.It is correlated with whether surface bark of larva transvered tunnel crack or not,ear-ly or late.Those that do not crack or crack late are susceptible strains while those that crack ear-ly are resistant strains.2.It is correlated with thickness of cork layer.Thick cork layer can in-crease resistance against pest while thin one is more susceptible to pest attack.3.It is related withage of tree.Trees at the age of 1-2 possess immunity to the pest,at 3-4 are relatively resistant,at5-8 are susceptible and over 9 are more resistant.4.It is also correlated with the rate of trees‘healing round the holes of larva tunnels.Those healing faster are resistant while those healingslower arc susceptible.5.It is related with the number of various scars on bark surface.

CLINICAL AND EXPERIMENTAL STUDIES OF JPYS IN REDUCING SIDE-EFFECTS OF CHEMOTHERAPY IN LATE-STAGE GASTRIC CANCER

This article reports a research project undertaken for more than 16 years by the Cancer Depart-ment of Guang An Men Hospital.Tonic Jian Pi Yi Shen (JPYS 健脾益肾),which nourishes thespleen and kidney,was used in combination with chemotherapy in the treatment of late stage gas-tric cancer patients for the purpose of promoting completion of the chemotherapeutic course,im-proving the general condition,ameliorating the reaction in the digestive system,protectinghemopoiesis and strengthening immunocompetence.The results of lab experiments were found tocoincide with those of clinical application.

A New Catalyst in the Crease Recovery Finishing of Silk Fabrics with Epoxide

The paper here intends to discuss silk crease recovery finishing behavior with ED GE (ethylene diglycidal ether) in the presence of a new catalyst WSH. The results show that ED GE reacts with silk fibroin and forms cross linkages through ether bond. The formation of cross linking was examined by FITR spectroscopy, soluble time in acid solution and changes of amino acids. Handle of treated silk with catalyst WSH is better than that of silk treated with the traditional catalysts such as thiosulfates and thiocyanates. Finishing technique, physical properties of the finished silk fabrics and evaluation of cross linkages are discussed.

Wrinkle-crease interaction behavior simulation of a rectangular membrane under shearing

Wrinkling analysis of a rectangular membrane with a single crease under shearing is performed to understand the wrinkle-crease interaction behaviors. The crease is considered by introducing the residual stresses from creasing and the effective modulus into the baseline configuration with assumed circular cross-sectional crease geometry. The wrinkling analysis of the creased membrane is then performed by using the direct perturb-force （DP） simulation technique which is based on our modified displacement components （MDC） method. Results reveal that the crease may influence the stress transfer path in the membrane and further change the wrinkling direction. The crease appears to improve the bending stiffness of the membrane which has an effective resistance on the wrinkling evolution. The effects of the crease orientation on wrinkle-crease interaction are studied toward the end of this paper. The results show that the wrinkling amplitude, wavelength, and direction increase as the crease orientation increases, and the wrinkling number decreases with the increasing crease orientation. These results will be of great benefit to the analysis and the control of the wrinkles in the membrane structures.

Dyeing and printing industry:Scientific and technical progress,energy-saving and environmental protection have achieved balanced development Interview with Chen Zhihua,president of China Dyeing and Printing Association

The general operation of dyeing and printing industry maintained a trend of slow stabilization during the 12th Five-Year Program period with obvious results in science and technology,management,energy conservation and environmental protection as well as the balanced development of the industries.Chen Zhihua,president of China Dyeing and Printing Association(CDPA),said that the dyeing and printing industry has in-

EFFECTS OF DIGITAL ACUPRESSURE ON THE CAPILLARY ARTERIOLAR FLOW IN CEREBRAL PlA MATER OF THE DOG

Effects of digital acupressure on the blood flowin the capillary arterioles of the cerebral pia matercovering the posterior sigmoidal gyrus in domesticdog(Canis familiaris)were observed.The speed ofblood flow was found increased to 185% after con-tinuous digital acupressure for 20 minutes.The in-crease was most prominent 15 minutes after the acu-pressure was completed;the effect subsided in 30minutes.It was also found that in cases of low basalspeed of flow before digital acupressure,the increasein the speed of blood flow after acupressure was morepronounced.

QUESTIONS AND ANSWERS

Houxi (SI 3) is an acupoint on the Small Intestine Channel of Hand-Taiyang, which is located, when a fist is clenched, on the ulnar side, proximal to the 5th metacarpophalangeal joint, at the end of the transverse crease and the junction of the red and white skin. The proper use of this point may bring about magical effect.

EFFECT OF ACUPUNCTURE ANALGESIA ON SYNAPSFS OF NUCLEUS CENTRO—MEDIANUS OBSERVED WITH ELECTRO—MICROSCOPE

The present study was aimed at the investigation of the ultrastructuralchanges of nucleus centromedianus(CM)of nuclei intralaminares under acupuncture analge-sia.The results of the observations on 18 healthy and adult rats were as follows.1.Thesynapses of the CM belong mainly to the axodendricular synapses and also with some suc-cessive or juxtaposing synapses.2.The presynaptic sac contains a lot of round and clearvesicles,some granular vesicles also spread among clear vesicles in a few synapses.3.Theround clear synaptic vesicles of CM in the electroacupuncture analgesia(EA)group are de-creased significantly than that in the control group.It is suggested that CM plays a role inacupuncture analgesia.

China Gets Tough on Environmental Targets

China promised to adopt"the strictest"environment and energy policies on December 25 as it has lagged behind in terms of four binding environmental tar-gets set for 2015,Xinhua News Agency reported.The four targets are for energy intensity,carbon dioxide emissions,rationalization of energy consumption and nitrogen oxide emissions。

STUDY ON THE CREASE RESISTANCE TREATMENT OF THE NATURAL SILK WITH RESIN FINISHING(Ⅱ)

This paper studies on the relationship between the draft and the crease resisfance in the heattreatment of thenatural silk with resin finishing.

The Situation of Trade Improved

China’s foreign trade in Ql of2016According to Customs figures,China’s total import and export in Ql of2016 reached 5.21 trillion Yuan,down5.9%year on year(the same below).In terms of the U.S.dollar,the total import and export of Ql reached$802.14billion,down 11.3%.In March alone,the total import and export was$1.

STUDY ON THE CREASE RESISTANCE TREATMENT OF THE NATURAL SILK WITH RESIN FINISHING (The first part)

In this paper we systematically inspect the crease resistance effect of several typicalkinds of resin,and try to probe into amore resonable method of the natural silks resinfinish.By inspecting the variation of the static visco-elastic constant and the degree ofcrosslinking caused by the different dinds of resin,the difference of degree of drafting andthe diffetence of precuring and curing,we may expound the crease resistance effect of theresin finish in mechanism.

Analysis the Influenced of Plain and Twill Structures on Woven Fabric Properties

Fabric outer appearance is influenced by various fabric structures. In this research work, the physical properties of plain and twill were analyzed. Physical, mechanical and other aesthetic properties are also tested and the finding results are also compared between two samples. After testing the samples it is found that rubbing fastness remains unchanged for plain and twill fabric. Abrasion resistance, pilling, crease recovery and cover factor were evaluated for twill and plain structures using ISO 12945-2, ISO 12945-1 and ISO 2313 methods respectively. Abrasion resistance and pills property are not good for twill fabric in comparison with plain fabric but crease recovery is better of twill fabric.