Investigation in Longitudinal Compression of Wool Based Suiting Fabrics

This paper describes an investigation in the fabric longi-tudinal compressibility of thirty-one suiting and trouse-ring materials using a newly developed device attached to the advanced Instron extensometer Model4466.The at-tachment was designed mainly to ensure a correct align-meat of fabric plane at the start of compression.Usingthe newly developed testing method,fabric longitudinalcompression curve was obtained and the results of longi-tudinal compressibility measured by two different com-pression load ranges(from 0 to 0.5 N/m width and 0 to1 N/m width)were examined.In addition,their rela-tionships with the fabric low-stress mechanical proper-ties measured by the KES-F system were investigatedusing statistical analysis.The results clearly indicatedthat significant differences existed when substituting fab-ric longitudinal compressibility with fabric extensibilitymeasured using the KES-F system under a low-load.Significant infiuence of yarn rotational movement in fab-ric on the longitudinal compressibi     

Experimental Investigation of Yarn Twist Blockage

In twisting a yarn running over a guide surface, the twist inserted into the part in front of the guide is impeded to transmit freely to the part behind the contact zone. A new device has been set up for investigating twist blockage and yarn torque - twist simultaneously. Measurements of twist blockage in relationship to different parameters have been carried out by using a monofilament yarn and a multifilament yarn. The factors under consideration include the wrap angle, yarn tension and input twist.     

某些自由基清除剂对哇巴因致豚鼠心律失常的影响——自由基可能参与洋地黄类的毒性过程

本文采用哇巴因致豚鼠心律失常模型,以哇巴目致室性早搏量、致室颤量和致死量作为衡量洋地黄类毒性的指标,观察GSH、三七皂甙Rg_1、Rb_1和AA等自由基清除剂对洋地黄美毒性的影响。结果表明:GSH、三七皂甙Rg_1、Rb_1和AA对哇巴因所致的心律失常均有不同程度的对抗作用,可减轻洋地黄类毒性。提示自由基可能参与洋地黄类的毒性过程。     

体外震波碎石术治疗尿路结石(附146例报告)

1991年5月至1992年5月,我院采用国产NE-Ⅳ型碎石机对146例尿路结石患者进行了229人次的原位碎石治疗。碎石成功率为98.63％,碎石术后3个月内肾上盏及肾盂排石率为68.99％,输尿管下段排石率为72.3％。本组结果表明,体外震波碎石治疗尿路结石安全、有效、并发症少。提高碎石疗效在于准确地B超定位及合理地选择适应症。     

Effects of aflatoxin B1 on human skin lipids metabolism — a site of action on 1-14C-acetate incroporation

Zusammenfassung Aflatoxin B₁ hemmt den Einbau von 1-¹⁴C-Azetat in die Lipide der menschlichen Haut. Wird aber³H-Azetyl-CoA als Vorstufe für den Lipideinbau verwendet, so kommt es zu keiner merklichen Hemmung. Die Azetataktivierung scheint somit die wichtigste, vom Toxin beeinflussbare Stufe der Lipidsynthese zu sein.     

DSPP mutation in dentinogenesis imperfecta Shields type II

We identified a nonsense mutation (Gln45stop) in exon 3 of the dentin sialophosphoprotein (DSPP) gene in a Chinese family with dentinogenesis imperfecta Shields type II (DGI-II), in which the affected members showed discoloration and severe attrition of their teeth, with obliterated pulp chambers.