查询词典 gamma

the article examines the characteristics of foreign exchange returns distribution,coupling with kinds of foreign exchange datas, figures out parameters of model by using variance gamma model.the empirically results ofkolmogorov-smirnov test and goodness of fit chi-square test shows that v.g.

本文运用方差gamma模型对外汇收益分布特征进行对比拟合分析，并结合几种被选汇率数据对模型参数进行估计。ks检验和卡方拟合优度检验的实证结果表明v.g。

Judgement and Solution Methods of UMVUE ;2. The maximum likelihood estimate and uniformly minimal variance unbiased estimate of MTTF were made on the one-unit system whose lifetime was assumed to be on GAMMA distribution.

讨论寿命服从单参数GAMMA分布单元平均寿命的极大似然估计和一致最小方差无偏估计；应用BASU定理求出了单元可靠度及串联系统可靠度的一致最小方差无偏估计。

Results All cases were followed up for 8~28 months. Among 76 cases treated with DHS, 2 got delayed union, 2 got displaced union and 4 got coax vara; among 64 cases with Gamma nail, 2 got displaced union; among 78 cases with PFN, no delayed union was found.

结果DHS组76例中有2例延迟愈合，2例移位愈合，2例髋内翻，3例伤口感染；Gamma钉组64例中有1例延迟愈合，2例移位愈合；PFN内固定组78例中无1例延迟愈合。

They minimize solution cost, by eliminating multiple discrete components including a digital variable resistor, VCOM amplifier, gamma buffers, resistor strings, and a high-voltage linear regulator.

器件省去了数字可变电阻、VCOM放大器、gamma缓冲器、电阻串和高压线性稳压器等多个分立组件，极大地降低了方案成本。

The three-dimensional fold of the Gamma crystallin has been solved and the protein can be refolded in vitro .

Gamma晶状蛋白可在试管内再摺叠且其三维立体结构已经被解出。

Objective To investigate the clinical effect of the senile intertrochanteric fracture treated with Gamma nail.

目的 探讨Gamma钉治疗老年性股骨转子间骨折的疗效。

Vesta shifts position between the two panels from well below 40 Leonis on Feb. 14 to near the top of the frame from Feb. 16, shooting the gap between the close Gamma/40 Leonis pair.

灶神星的位置变化之间的两个小组，从40莱奥尼斯远低于2月14日至附近的框架顶端从2月16日，射击之间的密切Gamma/40莱奥尼斯对差距。

Methods To take Rotating Gamma knife, Leksell-G stereotactic system, 1.0 MPI scanner scanrung and Camma-TPS planning. 1～2 focus of 4mm collimator were planed the pain side of trigeminal nerveroot. The center radiate dosage of the focus were 80～100Cy.

采用OUR-XGD／B型旋转式伽玛刀Leksell-G型立体定位仪，1.0TMRI扫描定位，Gamma-TPS规划系统，在痛侧三叉神经根部，用4mm准直器，布1～2靶点中心，中心剂量为80～100Gy。

In order to retrench the geosteering drilling cost,a MWD GAMMA geosteering drilling technology suited for Zhongyuan Oilfield was put forward based on the geologic information obtained in old oildom.

中原油田钻井工程技术研究院为了配合老油田的增油上产，经过多年的应用，把MWD GAMMA测量技术比较好的用于水平井的施工中。

Methods 68 cases with femoral peritrochanteric fracture from January, 2002 to December, 2007. 25 were treated by Gamma nail, 25 of them were treated by DHS, DCS and 18 of them were treated by HCS.

2002年1月～2007年12月收治的股骨转子间骨折并通过手术治疗的68例，采用Gamma钉固定25例、滑动加压鹅头钉固定25例与空心加压螺钉固定18例。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐