加权

Three factors (the total rate of win, the difficulty and the benefits execratory of winning a big prize) which influence the attraction to buyers are considered, and attraction function to evaluate the scheme's rationality is structured using classification weighting method. 3 Buyers'psychological curve is introduced and a model to describe the attraction of a scheme to buyers is built. Based on this, a model to find better lottery scheme is structured considering various constraints, and an optimal scheme is obtained under given constraints using paragraph division method. 4 Several plans for development of our future lottery are proposed by referring to the successful experience of overseas.

主要工作如下： 1对彩票概况以及彩票业的发展史和趋势进行简单介绍； 2综合考虑总中奖概率、高项奖中奖概率以及中大奖的期望收益等影响彩民吸引力的因素，采用分类加权法构造吸引度函数来评价方案的合理性； 3引入彩民心理曲线建立模型来描述方案对彩民的吸引力；在此基础上考虑各种约束条件，建立寻求更优彩票发行方案的模型，并采用分段遍历搜索方法求出给定约束下的最优方案； 4借鉴国外成功经验，对未来我国彩票业的发展提出几点设想。

Objective To study the appereance of fibroblastic meningioma in diffusion-weighted MRI imaging.

目的：探讨纤维型脑膜瘤MRI弥散加权成像表现。

Objective To study the appereance of fibroblastic meningioma in diffusionweighted MRI imaging.

目的：探讨纤维型脑膜瘤MRI弥散加权成像表现。

The reason is: in the process of the theory formule and finite element calculation, the parameters selected majority are average, while the real static curve is the comprehensive effect of the above pile and side pile in the dirrerent parameter model.

其原因为：在理论公式和有限元计算过程中，所选取的参数大多为加权平均，而实际的静载曲线为桩周土及桩端土不同模型参数土层的综合效果。

We chose 15 fresh adult knee samples without obvious genual diseases ( 5 examples of extended position,5 examples of flexed 45 degrees position, 5 examples of flexed 90 degrees position ), embed the samples of different functional positions with 5% blue glutin, and obtained 0.5mm sample by mill cuts technology at low temperature condition.

对无明显膝关节病变的成年志愿者60人，在MRI上选用SE-T1加权，做层厚2.0mm无间距扫描，TR1500ms，TE15ms。测量膝关节由全伸位到屈曲位前、后交叉韧带的长度和厚度，并观察髌股位置关系。

Under the fluoroscopic guidance, the glenohumeral joint was punctured, and 15-20ml of a mixed contrast solution (22%Omnipaque and 3mmol/L Magnevist) was injected inside the joint. Then SE T1-weighted sequence (repetition time/echo time=500 ms/20 ms) was performed in oblique coronal, oblique sagittal and axial plane within 45 minutes.

在透视下穿刺肩关节腔，注入15～20ml 22％ Omnipaque和3mmol/L Magnevist的混合性造影剂，然后在45分钟内完成SE序列T1加权(TR/TE=500/20ms)的斜冠状面、斜矢状面和横断面MR成像。

This method can detect the exact glottal closure time by extracting the local maxima in the weighted sum of wavelet transform coefficients in three scales.

通过提取三个尺度空间小波变换系数加权和的局部极值点，该算法能够获得突变点的准确位置。

A theory of aeroelastic stability of hingeless rotor blade in hover by using the Galerkin weighted residual finite element method is developed in this paper.

采用伽辽金加权余数有限元素法发展了一种悬停状态下无铰旋翼桨叶气弹稳定性的分析方法。

Results Hydrarthrosis was best seen on T2-weighted and IR coronal MR images.

结果 关节腔液体于T2加权和脂肪抑制序列冠状位扫描显示最清楚。

Diffusion tensor imaging is a kind of new technique after diffusion weighted imaging.DTI can reflect anisotropy hydrone molecular diffusion features of damaged myeloid tissue through measuring apparent diffusion coefficient and fractional anisotropy.Accordingly,we can make more precise and allround estimate about spinal compression on microscopic scale.

磁共振扩散张量成像是继扩散加权成像后发展起来的一种新技术，它通过测量表观扩散系数及部分各向异性值来反映损伤脊髓组织的各向异性水分子扩散特征，从而在微观水平对脊髓压迫症做出更精确和全面的评价。

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