Search

According to the national standard GB 18267--2000 (cashmere) and industry standard FZ/T21003--2010 (de-haired cashmere), this study tested the quality index of de-haired cashmere, such as average diameter, variation coefficient of diameter, average length, crimp frequency, average breaking strength, variation coefficient of breaking strength, average breaking elongation, variation coefficient of breaking elongation, etc.. The selection was made among de-haired cashmere from six production areas based on the method of fuzzy ordering. The result demonstrated that the cashmere from Xingiang exhibited the best quality. Moreover, a more objective and accurate assessment model was proposed to evaluate the comprehensive property of de-haired cashmere. It hoped that the result could provide guidance for the optimal selection of raw materials. [ABSTRACT FROM AUTHOR]

This paper is intended to develope cashmere core spun yarn, expecting to explore the way solving problems of poor wearproof and easy to be electrostatic of cashmere fabrics. Conductive filaments are prepared as core filaments and cashmere fiber is covered outside, cashmere core spun yarn is produced by ring-spinning frame. The core spun yarn and its fabrics are subjected to the test of tensile strength, bursting strength and static-electricity. Thereafter, their properties are compared with those of pure cashmere yarn and fabrics with the same specification. The result indicates that the tensile strength of cashmere core spun yarn increases 1. 45 times, the bursting strength of its fabrics increases 1. 7 times, the maximum friction electrostatic voltage decreases by 86. 5 % and the number of pilling per unit of area decreases by 16. 2 % . It is obvious that the structure of core spun yarn can enhance the properties of wearproof, antistatic and anti-pilling. [ABSTRACT FROM AUTHOR]

This paper is intended to analyze the correlation of cashmere fiber diameter distribution. Fiber fineness analyzer is used to measure cashmere fiber diameters of three kinds coming from different regions. After putting fiber diameters into categories according to the diameter range, the analysis is conducted to explore the distribution among different fibers using kendall correlation coefficient and euclidean distance analysis. The result indicates that sample 2 and sample 3 have better correlation concerning their diameter distribution than sample 1 and sample 3 ; while on the distribution of fiber range, the diameter distribution is more correlated between sample 1 and sample 3 than that between sample 2 and sample 3. It's verified that two analyzing methods has a guiding significance for the rational regulation of cashmere fiber among different regions. [ABSTRACT FROM AUTHOR]

In this paper, we choose the alpaca which grown in China as the row material of experiment, by stretching the single fabric of alpaca under the two circumstances which were water bath and chemical shaping. We also used efficiency of shaping as standard to discuss the effects of shaping which were made by temperatures and time and concentration of reagents during shaping process. Results of the experiment indicated the shaping effects of the two methods which were used to shape alpaca were between 66% ~ 87%. Shaping effect of water bath was better due to longer time and higher temperatures during shaping process. Shaping effect of potassium permanganate was worse because of its strong oxidizability, shorter time and hard controlled technics during shaping process. Shaping effects of potassium persulphate and sodium perborate were as good as the effect which water bath made, because of the two chemical substances made moderate impact and taken longer time during shaping process. [ABSTRACT FROM AUTHOR]

Theory and experiment of a single-phase-drive bi-directional linearly moving USM based on theoretical inclined straight-line track were researched. The motor was composed of an inclined slider and a tower-type stator. The stator had two orthogonal working modes: symmetric vibration mode in y-z plane and bending vibration mode in x-z plane. One working mode produced the motor's forward motion direction, and the other one produced backward motion direction. When the stator was working under one of the two orthogonal working modes, the track of the stator's driving tip was an theoretical inclined straight-line compared with the slider, so the slider was pushed to move by the stator. The motor's working principle was analyzed. The obliquity range of the inclined slider which can make the motor running normally was derived. Finally, a prototype was fabricated, and the tests of vibration mode and mechanical characteristics were accomplished. Under the condition that the slider's obliquity is 350 and the voltage is 500 Vp-pand the pre-pressure is 4.5 N, when the motor is working under the symmetric vibration mode in y-z plane, the motor moves forward and offers a maximal driving force of 0. 5N, and the maximal velocity with no load is 79 mm/s; and when the motor is working under the bending vibration mode in x-z plane, the motor moves backward and offers a maximal driving force of 0. 8N, and the maximal velocity with no load is 756 mm/s. [ABSTRACT FROM AUTHOR]

The article takes the producing of 44mm domestic cashmere slivering for example. It designs the slivering processing in terms of the technological process, material selection, blending and oiling, carding and slivering, needle combing, combing and so on, and draws the emphasis of quality control of cashmere slivering. The study shows that the cashmere has short length and low strength. We should design the processing parameter reasonably of carding gauge , speed ratio and so on, Pay attention to protecte the cashmere length and lower the fiber tendering, Pay attention to select water quality and wool oil, control the carding drops reasonable, select the material reasonably, finish the combination of the cashmere material and the finally cashmere product, enhance the property index and appearance index of product furthest. [ABSTRACT FROM AUTHOR]

Objective: To study the protective action of Astragalus Injection (AI) on ouabain-induced cardiac toxicity. Methods: Forty guinea-pigs were randomly divided into the AI group and the control group, AI injected intravenously in the AI group and 0.9% normal saline injected in the control group, ouabain was injected in contralateral of both groups intravenously 8 mins later. The time of cardiac ventricular tachycardia (VT) and cardiac ventricular fibrillation (VF), and the dose of ouabain were documented. Results: Compared with the control group AI could markedly prolong the time of VT and VF, and increase the dose of ouabain induces VT and VF ( P < 0.01). Conclusion: AI decreases the incidence of digitalism. [ABSTRACT FROM AUTHOR]