检索结果-南通市图书馆

在线全文

学校读者我要写书评

暂无评论

牧场冬季管理要点

中国乳业 2014年第12期 41-43页

作者： Amotz tal 利拉伐牧场管理团队

中国的冬季,大部分地区寒冷干燥,这种低温影响了牧场日常工作的很多方面,如果处理不好,会影响奶牛的健康和牛奶的质量,进而使牧场的经济利益严重受损。因此,如何帮助奶牛对抗冬天的恶劣天气,进行合理的操作是牧场管理者面临的一项严峻... 详细信息

中国的冬季,大部分地区寒冷干燥,这种低温影响了牧场日常工作的很多方面,如果处理不好,会影响奶牛的健康和牛奶的质量,进而使牧场的经济利益严重受损。因此,如何帮助奶牛对抗冬天的恶劣天气,进行合理的操作是牧场管理者面临的一项严峻挑战。本文着重探讨了冬季寒冷气候给牧场操作带来的影响,及其应对措施。

关键词：牛床乳头药浴牛群乳房炎环境温度体细胞数传统清洗剂成年牛乳头导管体表面积

急性心肌梗塞尿激酶临床应用研究（1138例）

在线全文

学校读者我要写书评

暂无评论

中华心血管病杂志 1996年第3期24卷 169-173页

作者： ResearchGroupofNationalProject85-915-02-01(Correspondence:FuWaiHospi-tal,CAMS&PUMC,Beijing100037) 中国医学科学院中国协和医科大学阜外心血管病医院

为探讨急性心肌梗塞（ＡＭＩ）静脉法应用国产尿激酶（ＵＫ）不同剂量的疗效和副作用，以及延迟用药的疗效。（１）对１０２３例发病６小时以内的ＡＭＩ患者随机分为：低剂量组［１．７万Ｕ（２．２万ＩＵ）／ｋｇ］５３９例和高剂量组... 详细信息

为探讨急性心肌梗塞（ＡＭＩ）静脉法应用国产尿激酶（ＵＫ）不同剂量的疗效和副作用，以及延迟用药的疗效。（１）对１０２３例发病６小时以内的ＡＭＩ患者随机分为：低剂量组［１．７万Ｕ（２．２万ＩＵ）／ｋｇ］５３９例和高剂量组［２．３万Ｕ（３．０万ＩＵ）／ｋｇ］４８４例。两组血管再通率分别为６７．３％和６７．８％，４周病死率分别为９．５％和８．７％，各种严重并发症差异均无显著性，说明两组疗效相似，出血并发症在高剂量组略高于低剂量组，但差异无显著性。值得指出的是，在高剂量组有２例发生了致命性脑出血。认为１．７万Ｕ（２．２万ＩＵ）／ｋｇ是安全有效的剂量。（２）延迟治疗的效果，发病后６～１２小时ＡＭＩ患者１１５例［应用ＵＫ２．０万Ｕ（２．６万ＩＵ）／ｋｇ］与发病６小时内用药组相比：血管再通率低（４０．０％对６７．５％，Ｐ＜０．００１），４周病死率较高（１３．９％对９．１％，但Ｐ＞０．０５）；重度心力衰竭发生率也较高（１３．０％对６．６％，Ｐ＜０．０２）。说明延迟治疗组疗效明显低于发病６小时内治疗者。

关键词：心肌梗塞尿激酶溶栓疗法

在线全文

学校读者我要写书评

暂无评论

设计师以利沙

中国建筑装饰装修 2010年第2期 274-276页

作者： Elisha.tal

以利沙可以被称之为设计师、发明家、教育家。他与合伙人萨菲一起创办了12D公司。这是一家致力于产品创新发展的工业设计公司。他设计经验丰富，其中包括：精密的医疗器械．大批量生产的玩具、电子产品、家用器具以及很多概念性的产品。

关键词：设计师产品创新大批量生产工业设计设计经验医疗器械电子产品家用器具

在线全文

学校读者我要写书评

暂无评论

对装甲兵未来的思索

国外坦克 1994年第2期 1-4页

作者： tal 魏群少将

尽管最近政治和战略格局发生了变化,然而以坦克为基本装备,并得到机动装甲步兵、战斗工程兵、自行炮兵和机动后勤部队辅佐的装甲兵仍然是地面战争中的决定性力量。

关键词：装甲步兵工程兵坦克战争部队炮兵战略反坦克武器格局政治

Surfactant Enhanced Chemofiltration of Zinc Traces Previous to Their Determination by Solid Surphase Fluorescence

在线全文

学校读者我要写书评

暂无评论

American Journal of Analytical Chemistry 2011年第8期2卷 902-908页

作者： Mabel Vega Miriam Augusto María C. talío Liliana P. Fernández 不详

Surfactant enhanced chemofiltration on Nylon membranes pre-treated with hexadecyltrimethylammonium bromide (HTAB) and eosin dye (eo) is proposed for zinc traces quantification by solid surphase spectro- fluorimetry (SSF, λexc = 532 nm;λem = 548 nm). Operational variables which have influence on quantitative retention of metal complex have been studied and optimized. At optimal experimental conditions, quantita- tive recovery was reached with a detection limit of 0.662 pg?L–1 and quantification limit of 2.20 pg?L–1. The calibration sensitivity was of 1.22 L?pg–1 for the new methodology with a linear range of 2.20 pg?L–1 to 779 pg?L–1 Zn (II). The tolerance levels of potential interfering ions were studied with good results. Recuperation studies were carried out by standard addition method applied to natural water samples (San Juan, Argentine) without previous treatment. The reproducibility (between-days precision) was also evaluated over 3 days by performing five determinations each day. CV% was 0.37. The performing obtained in sensitivity and selec- tivity thanks to chemofiltration step, converts the proposed methodology in an adequate alternative to con- ventional techniques for Zn (II) traces determination.

关键词： Zinc Traces Eosin Dye Surfactant Enhanced Chemofiltration Solid Surphase Fluorescence Natural Water Samples

Intraoperative Fracture of the Femur in Revision Total Hip Arthroplasty with a Fully HA-Coated Stem

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Orthopedics 2014年第3期4卷 70-76页

作者： David E. Rothem Lilah Rothem Alexander Lerner tal Salamon Richard Hiscock Neil Bergman Warringal Private Hospital Heidelberg Australia Ziv Medical Center Zefad Israel

A retrospective review was made of intraoperative femoral fracture prevalence in seventy nine consecutive, cementless, fully HA-coated stems used for revision hip arthroplasty. Three patients were lost to follow up. Intraoperative fracture occurred in 15 (20%) femurs. Fractures occurred during cement removal (3/15) or insertion of the implant (12/15). All fractures were identified using intraoperative biplane X-ray, and were treated during the same operation. The clinical outcome of both groups (with or without fractures) was similar. The risk of intraoperative fracture was not statistically related to any demographic features or operative technique. Intraoperative radiographs are therefore mandatory in revision hip arthroplasty in order to diagnose and treat the common complication of femur fracture appropriately.

关键词： Revision Hip Arthroplasty Intraoperative Fracture Fully Coated HA Stem Femoral Periprosthetic Fracture

Enhancement of the ‘tractor-beam’ pulling force on an optically bound structure

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Light(Science & Applications) 2017年第1期6卷 136-141页

作者： Jana Damková Lukáš Chvátal Jan Ježek Jindřich Oulehla Oto Brzobohatý Pavel Zemánek Institute of Scientific Instruments of the CAS v.v.i.Královopolská147Brno 61264Czech Republic

Recently,increasing attention has been devoted to mastering a new technique of optical delivery of micro-objects tractorbeam’1–*** beams have uniform intensity profiles along their propagation direction and can exert a negative force that,in contrast to the familiar pushing force associated with radiation pressure,pulls the scatterer toward the light *** was experimentally observed that under certain circumstances,the pulling force can be significantly enhanced6 if a non-spherical scatterer,for example,a linear chain of optically bound objects10–12,is optically *** we demonstrate that motion of two optically bound objects in a tractor beam strongly depends on theirs mutual distance and spatial *** configuration-dependent optical forces add extra flexibility to our ability to control matter with *** these interactions opens the door to new applications involving the formation,sorting or delivery of colloidal self-organized structures.

关键词： beam scatter mutual

Antibiotic prophylaxis in patients with severe acute pancreatitis

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Hepatobiliary & Pancreatic Diseases International 2005年第1期4卷 23-27页

作者： Yan-Ming Zhou, Zuo-Liang Xue,Yu-Min Li, You-Quan Zhu and Nong Cao Lanzhou, China Department of General Surgery, Hospi- tal of Lanzhou Medical College, Lanzhou 730000, China Department of General Surgery Hospital of Lanzhou Medical College Lanzhou 730000 China

BACKGROUND: The prophylactic use of antibiotics in pa- tients with severe acute pancreatitis remains contentious. This study was undertaken to review the current studies on antibiotic prophylaxis in patients with severe acute pancrea- titis. DATA RESOURCES: All papers found by a Medline search were relevant to human trials of antibiotic prophylaxis in patients with severe acute pancreatitis. RESULTS: In the 1970s, three small randomized studies of prophylactic ampicillin in the treatment of acute pancreati- tis showed no effect on mortality or morbidity, but the in- clusion of patients at low risk for infection and the use of an ineffective antibiotic were insufficient to detect any diffe- rences. From 1993 to 2001, eight prospective clinical trials of antibiotic prophylaxis were conducted in patients with severe acute pancreatitis ( SAP ). Seven of the 8 trials showed significant effect of the prophylaxis in prevention of pancreatic infections, and one showed significant improve- ment of clinical course documented by the Acute Physiolo- gy and Chronic Health Evaluation (APACHE ) scores. Only two trials did demonstrate the significance of the prophylaxis in lowering the mortality rate. Despite varia- tions in drug agents, study size and patient selection, dura- tion of treatment, and methodology ( None of the studies was double-blinded), a meta-analysis showed the positive effect of antibiotics in reducing the mortality. We suggested that antibiotic prophylaxis with proven efficacy in necrotic pancreatic tissues should be given to all patients with acute necrotizing pancreatitis. In recent years, however, the first double-blind, placebo-controlled multicenter study from Germany detected no benefit of antibiotic prophylaxis with respect to the risk of developing infected pancreatic necrosis. CONCLUSION: Prophylactic antibiotics for severe acute pancreatitis is still a matter of discussion and further studies are required to provide adequate data to answer many ques-t

关键词： severe acute pancreatitis antibiotics infected pancreatic necrosis

在线全文

学校读者我要写书评

暂无评论

系统级芯片助力未来摄像头

汽车与配件 2014年第36期 48-50页

作者： tal Babaioff Mobileye

汽车制造商及其供应商都在寻找最先进、最可靠的技术来支持最新的以及未来新一代的驾驶辅助系统。其中就有采用Mobileye的EyeQ系统级芯片技术的视觉系统。如今,驾驶已经成为一项越来越复杂的任务:交通变得越来越稠密,车速也变得越来越... 详细信息

汽车制造商及其供应商都在寻找最先进、最可靠的技术来支持最新的以及未来新一代的驾驶辅助系统。其中就有采用Mobileye的EyeQ系统级芯片技术的视觉系统。如今,驾驶已经成为一项越来越复杂的任务:交通变得越来越稠密,车速也变得越来越快。在如今这个处处联网的时代,存在很多令驾驶者分心的东西。同时。

关键词：系统级芯片驾驶辅助系统视觉系统物体识别巡航控制高分辨率图像图形处理车身控制视频图像