扫描

This group case of illness all uses scanning of scanner of CT of Lightspecd Plus helix, scanning layer is thick for 5mm, removed 5mm, CT of go ahead of the rest is smooth sweep, injector of reuse high pressure, shed vein of rate classics ancon to inject how to fire force with 3ml/s (320mgI/ml)90ml, the 65s after inject ends scans, scanning parameter 120kv, 230ma, sweep time 0.8s, rebuild with layer thick 2.5mm, removed 1.25mm.

本组病例均使用Lightspecd plus螺旋CT扫描仪扫描，扫描层厚为5mm，间隔5mm，先行CT平扫，再使用高压注射器，以3ml/s流率经肘静脉注射安射力(320mgI/ml)90ml，注射完毕后65s扫描，扫描参数120kv，230ma，扫描时间0.8s，并以层厚2.5mm、间隔1.25mm重建。

On the base of the single-diameter laser-scanned measuring technology, a double direction laser-scanned measuring system is presented. Which combinate the laser-scanned measuring technology with special optical system. In the system, the collimation semiconductor laser-scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made. The beams with the dimension information of two perpendiculars direct are processed by the scanning receive system, the high-speed photoelectric transition and electronic data process. Two measured results of the diametric directs and ellipse tolerance,etc, parameter, of the turning workpiece on the same plane are obtained by non-contact automatic measurement. The problem of non-contact measurement of two perpendiculars direct of one plane of turning workpiece is settled. It processes many peculiarities, such as high speed, high accuracy and non-contact automatic measurement, etc.

在单向激光扫描检测技术的基础之上，提出了一种双向激光扫描检测系统，其采用激光扫描检测技术与特殊光学系统相结合，用准直半导体激光扫描光束对被测工件径向某一截面的两个相互垂直方向同时扫描，经扫描接收光学系统、高速光电变换、电子学系统和微机数据处理系统，对将携带有垂直方向被测量信息的光束进行处理，实现了回转体工件同一截面两个垂直方向的径向尺寸和椭圆度等参数的非接触自动测量，解决了同时非接触测量回转体零件同一截面两个径向尺寸的难题，它具有高速，高精度和非接触自动测量等特点。

In the system , the collimation semiconductor laser - scanned beam scanning two perpendiculars direct of one plane of the measured workpiece at the same time is made . the beams with the dimension information of two perpendiculars direct are processed by the scanning receive system , the high - speed photoelectric transition and electronic data process . two measured results of the diametric directs and ellipse tolerance , etc , parameter , of the turning workpiece on the same plane are obtained by non - contact automatic measurement

在单向激光扫描检测技术的基础之上，提出了一种双向激光扫描检测系统，其采用激光扫描检测技术与特殊光学系统相结合，用准直半导体激光扫描光束对被测工件径向某一截面的两个相互垂直方向同时扫描，经扫描接收光学系统、高速光电变换、电子学系统和微机数据处理系统，对将携带有垂直方向被测量信息的光束进行处理，实现了回转体工件同一截面两个垂直方向的径向尺寸和椭圆度等参数的非接触自动测量，解决了同时非接触测量回转体零件同一截面两个径向尺寸的难题，它具有高速，高精度和非接触自动测量等特点。

Considering the specialty of pseudo-random vector, a partial scan algorithm for BIST, which unifying the structure analysis and testability analysis, is presented in this paper. Then, the fault simulation experiments on ISCAS89 benchmark circuits by this algorithm is made, and the results, which made by the full scan algorithm and the partial scan algorithm only based on the structure analysis, is compared. The conclusion is achieved: for pseudo-random vector, compared with the full scan circuit and the circuit geted by partial scan algorithm only based on the structure analysis, the circuit geted by our partial scan algorithm can greatly reduce the test time with very close or even greater faults coverage and less area than the full scan.

考虑到伪随机测试向量的特殊性，本文借鉴确定性测试向量生成的部分扫描算法，在内建自测试环境中，提出一种综合结构分析和可测性分析的部分扫描算法，PSBAST，并运用此算法对ISCAS89 benchmark电路进行计算，并对经计算后得到的部分扫描电路进行故障模拟，最后将模拟结果与全扫描电路和一种仅考虑结构因素的部分扫描算法得到的结果进行详细分析和比较，结果表明：对于伪随机测试向量，相对于全扫描电路和由仅考虑结构因素的部分扫描算法得到的电路，本文提出的部分扫描算法得到的电路，能够在不低于全扫描结构故障覆盖率前提下，大幅度减少测试时间，并能降低测试面积开销。

PVC Card - Business card printing 】Imagesetter was developed a new device that is using the computer for an input text symbols proofing, editing, and then the exposure by laser-scanning technology Imaging in sencitivity that the use of scanning beam brightness focused by a high, as to the very fine beam, the scan to the identity of lycoramine up to 40 line/MM, this setter it to text glyph outlines and flick, the text of high quality typesetting, interpuntion, has become the main force of text interpuntion, after more than 20 years of growing and changing as the types of technology, from the use of laser light apparatus'manufacture laser, argon ion laser and led, and so on, from the scan of the different ways to look at so, Prism scan, mechanical drum scanning and internal cylindrical drum scans several ways-galvanometric machanistic, but galvanometric high quality requirements with less.

激平照排机是70年代研制出来的一栽陈摆设，它是诳骗电子计算机差不不输入笔墨标记举不静校差，编纂办理，再堵住激平扫描技艺曝平不败像在感平质料上，使扫描平束亮量矮，不纬聚焦后到极细的平束，其扫描辨别辛可达40线/MM，因此这栽照排机能较好不天表不隐笔墨字形边框和笔锋，照排的笔墨质量矮，排版速率迟，已不败为笔墨排版的主辛军，不纬过二十众年的不停不败长，技艺日益美满，栽类不败群，从搁置激平平氦氖激平，氩离子激平和发平二级惯等，从扫描方法差别来看有，棱镜扫描，板滞式滚筒扫描和边方滚筒扫描等几栽次要方法，也有拔取振镜扫描式的，但差振镜质量请求矮而用得较众。

PVC Card - Business card printing 】Imagesetter was developed a new device that is using the computer for an input text symbols proofing, editing, and then the exposure by laser-scanning technology Imaging in sencitivity that the use of scanning beam brightness focused by a high, as to the very fine beam, the scan to the identity of lycoramine up to 40 line/MM, this setter it to text glyph outlines and flick, the text of high quality typesetting, interpuntion, has become the main force of text interpuntion, after more than 20 years of growing and changing as the types of technology, from the use of laser light apparatus'manufacture laser, argon ion laser and led, and so on, from the scan of the different ways to look at so, Prism scan, mechanical drum scanning and internal cylindrical drum scans several ways-galvanometric machanistic, but galvanometric high quality requirements with less.

激平照排机是70年代研制出来的一栽陈摆设，它是诳骗电子计算机差不不输入笔墨标记举不静校差，编纂办理，再堵住激平扫描技艺曝平不败像在感平质料上，使扫描平束亮量矮，不纬聚焦后到极细的平束，其扫描辨别辛可达40线/MM，因此这栽照排性能较好不天表不隐笔墨字形边框和笔锋，照排的笔墨质量矮，排版速率迟，已不败为笔墨排版的主辛军，不纬过二十众年的不停不败长，技艺日益美满，栽类不败群，从搁置激平平氦氖激平，氩离子激平和发平二级惯等，从扫描方法差别来看有，棱镜扫描，板滞式滚筒扫描和边方滚筒扫描等几栽次要方法，也有拔取振镜扫描式的，但差振镜质量请求矮而用得较众。

Objective To analyze the CT and MRI manifestations of oral carcinoma,and to evaluate the value of imaging technologies in the diagnosis of oral carcinoma,thus to explore the most reasonable imaging method Methods 46 cases with oral carcinoma,proved by surgery and pathology （2 lip tumors,8 carcinomas of the gingival ridge,5 carcinomas of the buccal mucosa,24 tongue carcinomas,5 carcinomas of the floor of the mouth,2 tumors of the hard palate）,were analysed retrospectively32 cases were examined with CT and 14 cases with MRIImaging presentations were compared with surgery and pathology Results Of the 46 cases with oral carcinoma,22 were ulcerative lesion of infiltrative growth,24 were masslike lesion of extruded trowthOf the 32 cases examined with CT scan,27 were detected,5 were missed,the 4 missed cases were confirmed to be superficial ulcers by surgery and pathologyOf the 10 cases with bone destruction examined with CT scan,8 were manifested,2 were missedAnd of the 14 cases with MRI scan,all 14 were detected Conclusion CT and MRI scan are valuable for diagnosis of oral carcinomasThey can manifest the morphology and size of primary tumor,contiguous structures,bone invasion and cervical lymph node metastasisMRI is the optimal imaging method for superficial ulcerative lesion of infiltratibe growth

徐 锋，罗德红，唐威，欧阳汉，周纯武目的分析口腔癌的CT及MRI表现，评价影像检查在口腔癌诊断中的应用价值，探索合理的影像学检查方法。方法回顾性分析经手术及病理证实的口腔癌46例（唇癌2例，牙龈癌8例，颊黏膜癌5例，舌癌24例，口底癌5例，硬腭癌2例），其中32例行CT扫描，14例行MRI扫描，将影像表现与手术所见及病理结果进行对照分析。结果 46例口腔癌中，呈浸润性生长的溃疡型病变22例，外生性生长的肿物型病变24例。CT扫描32例，明确显示病变27例，遗漏病变5例，其中4例为表浅溃疡型病变。CT扫描病例中，10例有骨质侵犯，CT扫描准确评价8例，遗漏2例。MRI扫描14例，均准确评价肿瘤及其与周围结构的关系。结论 CT、MRI对口腔癌原发肿瘤的形态、大小、周围结构侵犯、颈部淋巴结转移的评价有重要价值。对于较小及呈浸润性生长的表浅溃疡型肿瘤，CT扫描尤其是CT平扫难以准确显示，应首选MRI。

Objective To analyze the CT and MRI manifestations of oral carcinoma,and to evaluate the value of imaging technologies in the diagnosis of oral carcinoma,thus to explore the most reasonable imaging method Methods 46 cases with oral carcinoma,proved by surgery and pathology （2 lip tumors,8 carcinomas of the gingival ridge,5 carcinomas of the buccal mucosa,24 tongue carcinomas,5 carcinomas of the floor of the mouth,2 tumors of the hard palate）,were analysed retrospectively32 cases were examined with CT and 14 cases with MRIImaging presentations were compared with surgery and pathology Results Of the 46 cases with oral carcinoma,22 were ulcerative lesion of infiltrative growth,24 were masslike lesion of extruded trowthOf the 32 cases examined with CT scan,27 were detected,5 were missed,the 4 missed cases were confirmed to be superficial ulcers by surgery and pathologyOf the 10 cases with bone destruction examined with CT scan,8 were manifested,2 were missedAnd of the 14 cases with MRI scan,all 14 were detected Conclusion CT and MRI scan are valuable for diagnosis of oral carcinomasThey can manifest the morphology and size of primary tumor,contiguous structures,bone invasion and cervical lymph node metastasisMRI is the optimal imaging method for superficial ulcerative lesion of infiltratibe growth

中华硕博网核心提示：徐锋，罗德红，唐威，欧阳汉，周纯武关键词：口腔肿瘤目的分析口腔癌的CT及MRI表现，评价影像检查在口腔癌诊断中的应用价值，探徐锋，罗德红，唐威，欧阳汉，周纯武目的分析口腔癌的CT及MRI表现，评价影像检查在口腔癌诊断中的应用价值，探索合理的影像学检查方法。方法回顾性分析经手术及病理证实的口腔癌46例（唇癌2例，牙龈癌8例，颊黏膜癌5例，舌癌24例，口底癌5例，硬腭癌2例），其中32例行CT扫描，14例行MRI扫描，将影像表现与手术所见及病理结果进行对照分析。结果46例口腔癌中，呈浸润性生长的溃疡型病变22例，外生性生长的肿物型病变24例。CT扫描32例，明确显示病变27例，遗漏病变5例，其中4例为表浅溃疡型病变。CT扫描病例中，10例有骨质侵犯，CT扫描准确评价8例，遗漏2例。MRI扫描14例，均准确评价肿瘤及其与四周结构的关系。结论 CT、MRI对口腔癌原发肿瘤的形态、大小、四周结构侵犯、颈部淋巴结转移的评价有重要价值。对于较小及呈浸润性生长的表浅溃疡型肿瘤，CT扫描尤其是CT平扫难以准确显示，应首选MRI。

In order to establish high precision laser scanning plane, the laser beam transmission is anatomized in the formation of the scanning plane.

为了建立高精度的激光扫描基准平面，对扫描平面形成过程中光束的传播进行了详细分析；根据光学矢量反射定律，推导出了扫描误差的理论公式；在此基础上揭示了误差补偿的基本原理，导出了用于补偿扫描机构产生的扫描误差的理论公式；提出了据此准则进行设计的扫描机构的模型。

Based on the working principle of the OCT system, the theoretical analysis on several longitudinal scanning measures, including piezoelectric transition scanning, rotating mirror array scanning, femto-laser scanning and manufactured cam wheel transmission of OCT system were made.

基於光学相干层析系统工作原理，对OCT系统的几种纵向扫描方式包括压电跃变方式扫描、旋转反射镜阵列扫描、飞秒激光器扫描以及自行设计研制的凸轮机构扫描方式进行了详细的理论分析，并对凸轮扫描机构进行了实验研究，对这几种扫描方式的优缺点做了比较，对提高纵向分辨率的因素进行了讨论。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。