防羽绒织物织造工艺的分析

利用非电测量等技术对有关织造工艺测试,论述了高密织物在结构上的特点,特别是在织造时工艺的各种特点,还对在有梭织机上制织高密织物提出了系列改进措施和建议。     

微机在纺织测试中的应用之二——织机动态织口位置的测试研讨

本文介绍采用光电变换装置与微机组成的测试系统,对动态织口位置、织物卷取量、送经量和主轴转角等的测试结果。着重讨论了动态织口位置变化规律,经纱张力与织口位置的关系;送经量、卷取量与织口位置的关系;停车时织口位置的变化等。有关测试装置及方法,可供老机改造、新机研制及引选设备的消化之参考。有关测试结果及研讨,可供织物形成理论研究与生产实际参考。     

对开口时经纱受力的分析

本文应用柔线力学原理分析了开口时经纱的受力状态。分析时计及梭口两端,织口和停经架处的不同高度和前后移动,考虑到织物和经纱的刚性系数。应用这一原理可以计算织机上机工作条件和综框所受的负荷。     

真丝重磅织物CAD软件的研制

在单层组织计算机辅助设计的基础上，重点解决重纬和双层组织的真丝重磅织物计算机辅助设计.根据绸重要求，计算机辅助设计了经纬纤度配比、经纬密度、经纬缩率及幅宽等规格参数，并通过试织验证了软件的可靠性.     

机织物纬密不匀的成因及解决措施

本文分析了织物纬密不匀的成因,找出其重要原因之一是打纬开始时间的提前或推迟,认为造成这种变动的原因有两类:第一类是钢筘推动织口的动程的变化;第二类是织口位置的偏移。就解决稀密路横挡在机构方面采取的措施作了研究探讨,结果表明在现有织机的上机弹性系统中串联弹性元件是一种有效的方法。     

“双涛”寻源童话王国我行我速“走出色”——ECCO INTRINSIC 2盈速2系列炫彩上市

正2016春夏,北欧丹麦鞋履及皮具品牌ECCO携两位代言人刘涛、郭涛一同走进品牌发源地丹麦,炫彩演绎ECCO INTRINSIC 2盈速2系列春夏广告大片,为浪漫的童话王国增添了动感与活力。本次,在延续了ECCO INTRINSIC盈速一代的运动设计和简约风格的基础上,带来色彩更为丰富、细节设计更为别致的ECCO INTRINSIC 2盈速2系列。围绕提供全天舒适穿着体验这一宗旨,在皮革和织     

打纬区宽度的研究

本文阐明了打纬区的定义及其形成,并介绍了自制的织口位移测量仪的工作原理和使用情况。利用织口位移测量仪在1511M型织机上,分别就21/2×21/2帆布和42/2×21半线卡对经纱上机张力和综平时间与打纬区宽度的关系进行了研究,得出了在其它条件固定时“上机张力与打纬区宽度成近似双曲线关系”、“综平时间与打纬区宽度成负指数关系”的结论。     

浆膜性能与浆纱性能的相关分析

从提高浆纱可织性出发 ,测试了浆膜和浆纱性能的有关指标 ,采用多元线性回归方法 ,对所测结果进行数据处理 ,得出浆膜指标和浆纱指标间的关系 .分析了影响浆纱可织性指标的因素 ,对于不同种类纱线上浆时浆料的选择与配比的确定 ,具有重要的指导意义 .     

青岛市卫生执法部门查处24种不合格化妆品

青岛市卫生执法部门开展了流通领域化妆品专项执法检查，共检查大中型超市及高密路化妆品一条街等化妆品批发零售单位30余家、化妆品品种500余种，24种不合格化妆品被查处。     

织物形成过程中的内力分析

本文根据织物形成过程中经纬纱交织屈曲变形,提出了织物形成过程中存在内力变化概念,并运用此概念来解释织物几何结构理论和织物的其它一些物理现象,对实际生产有指导意义。     

具有长时间近似停歇的齿轮－导杆步进运动机构的设计

研究了具有长时间近似停歇的齿轮－导杆机构，揭示出这种机构的可行类型，找出提高精度的方法，指明停歇角和周转轮系的转化机构传动比的实用范围，从而完善了它的设计，以利于在实际中应用。     

The three-dimensional tracking pattern of the human patella

A study was undertaken to provide data on the three-dimensional tracking pattern of the patella, relative to the femur, in human knee-joint specimens. For this purpose, a highly accurate roentgen stereophotogrammetric analysis (RSA) method was applied. The three-dimensional motion patterns of the tibia and the patella were measured and represented in terms of three translations and three rotations each, during knee flexion in neutral (unloaded), endorotated, and exorotated pathways. We found that the patella displays complex but consistent three-dimensional motion patterns during flexion, which include flexion rotation, medial rotation, wavering tilt, and a lateral shift relative to the femur. The motion patterns are very much affected by tibial rotations accompanying flexion.     

激素非依赖性前列腺癌分子机制的研究现状

前列腺癌大多在抗雄激素治疗12~18个月后转变为激素非依赖性,本文重点从生物学角度阐述了雄激素受体及其基因突变、细胞凋亡、p53基因、p21基因和EphB2基因对前列腺癌的影响,对前列腺癌的基础研究有一定的指导作用。     

Management of extensor mechanism deficit as a consequence of patellar tendon loss in total knee arthroplasty: a new surgical technique

Extensor mechanism disruption is an uncommon but devastating complication of total knee arthroplasty. A new technique of extensor mechanism reconstruction for patellar tendon loss, after total knee arthroplasty, with the help of extensor mechanism composite allograft is described. Four patients with chronic extensor mechanism-deficient total knee arthroplasty were undertaken for revision surgery along with reconstruction of extensor mechanism with an innovative technique using an extensor mechanism composite allograft consisting of a patella-patellar tendon-tibial tubercle. On final follow-up, none of the patients had extensor lag but for 10 degrees of extensor lag in 1 patient only. Providing an environment for bone-to-bone healing both proximally as well as distally and supervised postoperative rehabilitation led to encouraging results in the management of a failed extensor mechanism after total knee arthroplasty.     

紫外线诱导皮肤光老化的形成机制

光老化是人体暴露部位皮肤衰老的主要原因,其机理的阐明对防护皮肤衰老及治疗光损性疾病具有十分重要的意义。本文总结了近些年该领域的研究成果,发现日光中的UV主要通过损伤DNA、进行性蛋白质交联、降低免疫应答、产生高度反应自由基损伤细胞和组织等机制造成皮肤光老化。UVB和UVA在诱导皮肤光老化形成中,既有各自的特点,又相互协同,而UVA单独对真皮深层的穿透能力及对真皮组织的损伤机制尚待进一步研究。     

豆腐凝固机理的研究

发现了在豆腐凝固过程中豆乳的pH随温度升高而下降,证明了二价金属离子引起豆乳pH下降的原因是与植酸盐、柠檬酸盐等发生络合反应所致,阐明了酸和盐凝固豆腐本质上的一致性。     

The significance of esophageal variceal pressure in patients with cirrhosis

We measured the portal circulatory hemodynamic parameters in 10 cirrhotic patients with portal hypertension and esophageal varices to determine the significance of esophageal variceal pressure. In 4 patients (group I), the temporary portal vein occlusion produced significant elevations in both the esophageal variceal pressure and the portal venous pressure. The results of the portal circulatory hemodynamic assessment in this group were consistent with the predominance of the backward flow mechanism. In the remaining 6 patients (group 11), however, portal vein clamping resulted in a slightly increased esophageal variceal pressure with an enormous increase in the portal pressure. The forward flow mechanism thus appeared to be predominant in group II. In other words, the results of the pressure measurements were consistent with the functional separation of the hemodynamics in the esophageal varices and portal trunk in group 11 and the functional hemodynamic continuity in group I. This functional separation between the esophageal varices and the portal trunk in group II might therefore have resulted from the increased blood flow in the lesser splanchnic region.     

Nonablative laser and light treatments: histology and tissue effects--a review

BACKGROUND AND OBJECTIVES: Nonablative laser and light treatments have largely replaced ablative laser therapy in clinical use for the improvement of the visible signs of cutaneous photoaging, including rhytides, vascular lesions, and pigmentation. However, the mechanisms underlying the reported clinical efficacy of nonablative treatments are not well-understood. The purpose of this analysis is to critically evaluate what is known about histologic and tissue effects of nonablative laser therapy and suggest future directions for research. STUDY DESIGN/MATERIALS AND METHODS: This is a review of the English language literature pertaining to nonablative laser and light treatments available through MEDline (1995-2002), and unpublished reports presented at major national meetings. Only studies that included harvesting and analysis of tissue samples are included. RESULTS AND CONCLUSIONS: (a) Thermal injury to the dermis in association with epidermal cooling most likely affects the dermal vasculature, which initiates a cascade of inflammatory events that includes fibroblastic proliferation and apparent up-regulation of collagen expression; (b) There is no indication that nonablative treatments are harmful or able to induce skin cancer; (c) It is possible that the horizontally distributed collagen reported after nonablative treatments is a "microscar," an enlarged Grenz sone associated with repetitive photo-induced trauma; (d) Further research is needed to elucidate the biophysical mechanisms underlying nonablative treatment, as well as to distinguish the utility of different wavelengths on epidermal and dermal improvement.     

全脾切除后IgM减少与促吞噬肽降低及淋巴细胞亚群改变的关系和意义

检测因脾外伤而切除全脾的病人外周血Ｔ、Ｂ淋巴细胞亚群及促吞噬肽（Ｔｕｆｔｓｉｎ）和ＩｇＭ水平，以及Ｔ、Ｂ淋巴细胞亚群和Ｔｕｉｔｓｉｎ对Ｂ淋巴细胞合成免疫球蛋白能力的影响。结果显示：全脾切除后ＩｇＭ的减少与ＣＤ２１￣＋Ｂ细胞及Ｔｕｆｔｓｉｎ减少有直接关系，尤其与ＣＤ２１￣＋Ｂ细胞减少有关；而ＣＤ８￣＋Ｔ细胞的减少使Ｂ细胞受抑制程度减轻，有利于Ｂ细胞合成ＩｇＭ能力的代偿。     

Mechanism and treatment of sulfur mustard-induced cutaneous injury

Skin is the first organ exposed to sulfur mustard （SM）. The mechanism of SM-induced cutaneous injury has not been fully clarified so far, which is a major obstacle to the development of effective treatments for SM-induced injury. So far, there is no satisfactory therapy for acute symptoms and long-term complications. This review summarized recent researches on the mechanisms of SM-induced cutaneous injuries and the therapies for acute symptoms and long-term complications.