定向

The management and quality analysis of the primitive images have been analyzed and studied in this paper, of which the content and structure are as follows:Firstly, the developing background and the meaning of the management and quality analysis of the primitive image, as well as the trends of the management and data quality of the image database studied both in and out of our country, have been discussed in detail.Secondly, the developing direction of the technology of the remote sensing image and the importance of the remote sensing images in the field of economy nowadays have been analyzed systematically. And it is pointed that the primitive image with the elements of interior and exterior orientation will become more and more important as a sort of image production.Thirdly, the hierarchical structure of database, especially the SQL Server adopted in this system, has been deep studied and analyzed in the aspects of Applying Program Interface, Internet Data Connector and ActiveX Data Object.Fourthly, the methods of assessing the quality of the remote sensing image have been put forward in the terms of geometry, construction and the integrality of the assistant information.Fifthly, the model of propagation of errors of the precision of the ground coordinates has been calculated in the steps of inner orientation, spatial resection and answering based on the deep analysis of the principles and processes of inner direction and space resection, which have also been experimented and analyzed in term of numerical value.Finally, the total design and the idiographic realization of the sub-modules have been introduced in detail, based on which the design and development of this system are realized in combination with the program languages such as VB6.0, VC6.0 and SQL.

本文针对原始影像的管理与质量分析进行了深入的研究与探讨，主要内容包括：(1)首先对原始影像管理与质量分析系统的研制背景和意义进行了详细论述，并对影像数据库管理和数据质量研究的国内外动态作了介绍；(2)对遥感影像技术目前的发展趋势以及遥感影像在国民经济生活中的地位进行了深入的分析，并指出附带有内外方位元素的原始影像作为一种影像产品将越来越会引起人们的重视；(3)对数据库的体系结构进行了深入的研究与分析，尤其是对SQL Server数据库的体系结构，从编程接口、Internet数据连接器和ActiveX数据对象三个方面进行了深入剖析；(4)从几何质量、构像质量和附属信息的完整性三个方面提出了对遥感影像质量的评定方法；(5)基于对内定向和空间后方交会原理及过程的深入分析，推导出了从内定向到空间后方交会再到最终求解地面坐标的误差传递模型，并对上述模型进行了数值实验和分析；(6)对原始影像管理与质量分析系统的总体设计和各模块功能的具体实现进行了详细的介绍，并在此基础上联合VB6.0、VC6.0和SQL等编程语言，实现了系统的设计与开发。

Now targeted disruption of the Jhdm2a gene in mice shows that the enzyme is involved in spermatogenesis and regulation of transition nuclear protein and protamine genes.

现在对小鼠Jhdm2a基因的定向破坏表明，这种酶涉及精子生成和转换核蛋白及鱼精蛋白基因的调控。

In recent years,with the development of high technology,the systematical plan of high-precision stereotactic surgery and the highfield MRI have been gradually applied in clinical trial.What\'s more,the target localization becomes more precise with the constant development of radio-frequency technique.Therefore,Psychosurgery has become an effective method of treatment for the intractable psychopathy,with an obviously improving curative effect and less harm caused by the surgery to the patients.

近年来，随着科技的发展，高精度立体定向手术计划系统和高磁场MRI逐步应用于临床，射频技术也不断提高，对靶点的定位更加准确，手术疗效明显提高，手术对患者造成的损害越来越小，该手术方法已成为难治性精神病的一种有效治疗手段，但远期疗效仍有待于进一步观察，且近年来各种争议越来越大，值得临床进一步研究。

By applying the analytic geometry method, pure mathemat ical model was used to get 3 dimensions coordinate of the deep brain structure i n a coordinate system of the frame.

应用纯数学模型以解析几何法求脑深部结构的定向仪框架空间坐标。

Large single crystals were also obtained by using pyrocatechol as additive. It was shown by 〓Si-NMR and IR that Sipyrocatechol complex was formed in the reaction system.

在F〓体系中，F〓对铝源和硅源起络合和矿化作用，形成可溶性氟硅酸盐AlF〓〓、SiF〓〓络合物，然后缓慢水解成含氧氟硅酸盐络合物，它们再发生定向缩聚，提供了分子筛晶体生长所需的可溶性结构单元。

At last, b-oriented Silicalite-1 zeolite films are synthesized on glass and quartz glass withseed method.

采用TPABr为模板剂合成定向Silicalite-1沸石膜是一种相对廉价的制作高品质沸石膜的方法，更有工业应用前景和价值。

The DPSK signal's influences on the performance of airborne radio compass including bandwidth, direction finding and beacon recognition, were analyzed in detail.

分析了DPSK调制对现有机载无线电罗盘的工作带宽、定向及台识别等性能指标的影响。

METHODS Within a three-year period,510 cases of X-knife treatment were taken,using the standard axial serial CT scan for stereotactic localization.The target was localized by the BRW coordinate system,Radionics RSA-3 X-knife treatment planning system was adopted to make plan,and Philips SL-75-14 Linac was used to produce X-ray.

用CT薄层连续扫描图像定位，采用BRW立体定向坐标系统，Radionics RSA-3型X-刀治疗计划系统，Philips SL-75-14医用电子直线加速器，对510例颅内疾病患者实施X-刀治疗。

The stereotactic method and radiosurgery of the brain.

X线立体定向治疗的物理原理和生物学基

Abstract］Objective: To locate of the rabbit sciatic nerve in CT scanning for stereotactic radiosurgery.

目的：立体定向照射兔坐骨神经的CT定位。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。