Exploration of mechanics in wood collapse;
木材皱缩现象中的力学问题探讨
Study on Reduction of Collapse of Eucalyptus Wood in Drying;
桉树木材干燥特性与工艺及其皱缩研究现状
Methods From July 2001 to September 2003, twenty-two patients (average age 28, 19～36 years old; 18 males and 4 females; 15 right knees and 7 left; 9 from sports injury, 7 from traffic accident and 6 by sprain injury) with symptomatic laxity and confirmed elongation with rupture of structure were operated with bipolar radio frequency thermal shrinkage under arthroscopy.
目的 :探讨关节镜监视下射频皱缩治疗交叉韧带松弛的方法与疗效。
Taking the winding heads CW6 by Barmag Germany,analysis is done to the factors causing the craping deforming of bobbins FDY in process of varieties of long fiber production.
以德国巴格(Barmag)公司制造的CW6型卷绕头为例,分析了在化纤长丝生产中FDY筒管产生皱缩变形的原因,认为主要原因是卷绕张力过大。
Objective: To investigate the effects on blastocysts survival and subsequent in vitro and in vivo viability of “artificial shrinkage” before vitrification of mouse expanded blastocysts using cryoloops technique.
目的:观察冷冻前人工皱缩小鼠扩张期囊胚的囊胚腔,冻融后小鼠扩张期囊胚的存活率及体外和体内继续发育能力。
Objective To observe the effect of Nd:YAG Laser on the treatment of capsule contraction syndromeafter cataract phacoemulsification.
目的观察Nd:YAG激光前囊切开术治疗白内障超声乳化术后囊袋皱缩的临床效果。
The results showed that: collapse depth, volume contractive rate and collapse factor of the heartwood gradually decrease in the stem height direction, collapse factor is bigger in the middle of the total-tree height.
本文采用产于呼市地区的加拿大杨木做试材,在一定温度和湿度条件下进行干燥试验,运用皱缩评价指标体系进行比较,结果表明:在树干纵向上、中、下3个部位,从下到上的皱缩深度和体积收缩率及皱缩因子(心材的)逐渐减小;边材、心边交界材及髓心材的皱缩因子中部较大;心材的体积收缩率、心边交界材的皱缩因子和皱缩深度变化最大。