加权

Objective To investigate the value of diffusion weighted imaging and susceptibility weighted imaging in the diagnosis of diffuse axonal injury.

目的 探讨弥散加权和磁敏感加权序列在脑弥漫性轴索损伤中的诊断价值。

Using sagital T1 weighted imaging (T1WI) of MRI and axial Diffusion imaging of MR and axial diffusion weighted imaging is a precise method to diagnosis callosal infarction.

结合MRI矢状T1加权(T1WI)扫描，和弥散加权成像横断扫描是诊断胼胝体梗死的准确的方法。

Used squared eancroid method for CCD image subdivided locating,discussed on squared cancroid method,and compared it with traditional centroid method, Gauss curvefitting method , and polynomial interpolation method.

介绍了激光三角测距传感器的基本工作原理和激光光斑成像噪声处理的主要方法，将平方加权质心法应用于激光在CCD中成像的细分定位，并与传统质心法、多项式插值法和高斯曲线拟合法进行了较为系统的比较；通过实验表明，平方加权质心法是一种较为理想的细分定位方法，不仅简单、易于实现，而且具有更高的定位精度以及抗噪声的能力。

Results:Most of the intracranial chordoma（16 cases in our group,88 9%）were located in the middle area of the skull base such as clivus and/or sellar region and always invaded extensively the nerves and major in tracranial vessels of skull base.All tumors were hypointense on T1- weighted imaging and heterogeneous hyperintense on T2- weighted imaging,On Gd- DTPA contrast- enhanced T1- weighted imaging 8 chordomas enhanced more markedly,but steady heterogeneous.

结果：颅内脊索瘤大部分（本组16例，占889%）发生于颅底中线处的斜坡和/或鞍区，并广泛侵犯颅底的神经和大血管等重要结构；在T1加权像上肿瘤主要表现为低信号，T2加权像上表现为不均匀高信号，Gd-DTPA静脉注射增强后（8例）均出现较明显的不均匀强化。

In preliminary diagnosis system, apparent clinical symptoms were broken into seven parts in terms of general, skin/body, respiratory, digestive/excretive, locomotive/nervous, reproductive, and attack age. Users could choose symptoms what they observed in this list. The system calculated accordingly and summed up weighted value in different symptoms of individual diseases, and showed top ten possible diseases sorted by sum of weighted value. The report also could show belief percentage of top ten possible diseases by a pie chart and illustrate the basis and reasons of inference.

牛病初步诊断系统依临床症状分为一般、皮肤/躯体、呼吸、消化/排泄、运动/神经、繁殖及主要发病年龄层等七类，使用者可在表单上勾选观察到的病徵，系统即可根据每个症状在不同疾病中之加权值进行计算，依加权总分之高低列出前十名可能发生之疾病，并以圆饼图方式呈现前十名可能疾病之信赖比率及说明推论此疾病之依据与理由，使用者可得到疾病的相关资料与处理建议，协助使用者了解该疾病，以便进一步采取因应措施。

The algorithm uses the six-dimensional Legendre orthogonal coefficients to form a vector for describing the shape of glottal flow derivative.

该方法将声门波导数波形在6维正交勒让德坐标系中的投影构成了描述其形状的特征矢量，并采用基于GMM的概率分类加权转换算法，使每个特征矢量的转换规则可由多个类所对应的规则的线性加权组合得到，可以使转换性能得到较大的提高。

A method is proposed for selecting the weighted matrix for the hydroturbine linear optimal regulator.

给出一种适合于水电机组线性最优调节器的加权矩阵的确定方法——基于次时间最优控制的加权矩阵的确定方法。

The contrast of lesion-to-normal and lesion-to-CSF were higher in FLAIR, was particularly superior in demonstrating lesions in the hypophloeodal or paraventricular area.Small hemorrhagic foci in Sylvian cistern and the cerebral sulci can be easily shown in FLAIR and can?t be done in conventional T2WI.FLAIR was particular of superiority to demonstrate trauma and subarachnoid haemorrhage.

结果 FLAIR共检出病灶1889个，常规T2加权像检出1343个，FLAIR显示病灶的轮廓更为清晰，病灶与正常脑组织的对比度更高，在显示脑皮层下、脑室旁病灶方面更有优势，可显示常规MR T2加权像未能显示的侧裂池及脑表面脑沟的小出血病灶，在诊断颅脑外伤及蛛网膜下腔出血方面具有明显的优势。

The contrast of lesion-to-normal and lesion-to-CSF were higher in FLAIR,which was particularly superior in demonstrating lesions in the hypophloeodal or paraventricular area.Small hemorrhagic foci in Sylvian cistern and the cerebral sulci can be easily shown in FLAIR and can?t be done in conventional T2WI.FLAIR was particular of superiority to demonstrate trauma and subarachnoid haemorrhage.

结果 FLAIR共检出病灶1889个，常规T2加权像检出1343个，FLAIR显示病灶的轮廓更为清晰，病灶与正常脑组织的对比度更高，在显示脑皮层下、脑室旁病灶方面更有优势，可显示常规MR T2加权像未能显示的侧裂池及脑表面脑沟的小出血病灶，在诊断颅脑外伤及蛛网膜下腔出血方面具有明显的优势。

Results MRI appearances of acoustic neuromas were:（1）The turmor's growth round the internal auditory canal,the Ⅶ,Ⅷ nerves affected side were thickened than that of opposite side.There was no marked demarcation between the main bodies of the tumors and the affected nerves.The connection between tumors and affected nerves could be showed at contrast enhanced imaging.（2）The tumors were of hypo or isohypo intensity on T1 weighted images and hyper or iso hyper intensity on T2 weighted images.（3）After Gd DTPA administration the tumors were homogeneously or inhomogeneously or circularly enhanced.（4）The margins of the tumors were smooth and well delineated.（5）The affected internal auditory canal usually became shorter in depth and larger in posterior anterior diameter.（6）MRI appearances of micro acoustic neuromas were that the affected Ⅶ,Ⅷ nerves were normal in size or nodularly thickened and the tumor reveaed nodular or point enhancement at contrast enhanced MRI.

结果 听神经瘤的MRI表现主要为：（1）肿瘤以内听道为中心生长，第Ⅶ、Ⅷ神经束较对侧增粗，与肿瘤主体多无明确分界，增强后可见两者相连，颇为特征；（2）肿瘤在T1加权图像上呈低信号、略低信号或低等混合信号，T2加权呈高信号或高等混合信号；（3）注射Gd DTPA后肿瘤呈均匀、不均匀或环状强化；（4）肿瘤边界清晰，边缘光整；（5）绝大多数肿瘤患侧内听道前后径扩大，深径缩短；（6）微小听神经瘤的MRI表现为第Ⅶ、Ⅷ神经束正常或局部结状增粗，造影后呈结节状或点状增强。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。