查询词典 discrete process

This procedure is based on discrete cosine transform DCT-formula implemented procedures to help beginners understand the discrete cosine transform process.

详细说明：这个程序是根据离散余弦变换的公式实现的DCT变换程序，能够帮助初学者理解离散余弦变换的过程。

In this model, a whole chromatography separation process is described with recursion equations of the discrete state vector and corresponding discrete initial-boundary conditions.

该理论模型把色谱分离的整个过程离散为一系列指定时间的溶质空间分布热力学状态的态矢量。

A systematic study on computing the integral curvature line on NURBS surface is presented. Discrete normal is used to simplify calculation of the second fundamental form of the surface, resulting in accelerating the Euler iteration process in solving the differential equation of curvature line. Discrete points on the curvature line are then obtained and approximated by an explicitly presented B-spline curve on the NURBS surface using singular mixed interpolation and capable of controlling the error within a given tolerance.

对NURBS曲面的曲率线的积分进行了系统的公式推导，并利用NURBS曲面的离散法向量有效地简化了曲面第二基本量的计算，加速了Euler法迭代求解曲率线微分方程的过程；在求得曲率线上的离散点集以后，应用奇异混合插值技术，在可控精度内把曲率线用显式直接表示为位于NURBS曲面上的B样条曲线。

By applying the discrete vector Markov process method, a discrete time two-unit parallel repairable system with single vacation is studied in this paper.

以及首次故障前平均时间等可靠性指标。并通过具体数值实例展示了离散向量马氏链状态转移频度的具体计算方法。

Carry on structure analysis to the spare parts first, understand its structure characteristics to choose suitable semi-finished product and the semi-finished product manufacturing of the reasonable a craft thus;Then the technique request of spare parts carries on analysis, understanding it each process superficial accuracy grade and the surface rough degree, make it process the fixed position in the process and clip a tight way in assurance inside the scope of economic accuracy, draw up the machine of spare parts to process craft process thus and further, choose each work preface to process equipments and craft material, the assurance slices to pare dosage and craft size, computing the man-hour of each work preface settle sum.

首先对零件进行结构分析，了解其结构特点从而选择合适的毛坯以及合理的毛坯制造工艺；再零件的技术要求进行分析，了解其各加工表面的精度等级以及表面粗糙度，使其在经济精度的范围内确定加工过程中的定位和夹紧方式，从而进一步拟订零件的机械加工工艺过程，选择各工序加工设备以及工艺装备，确定切削用量以及工艺尺寸，计算各工序的工时定额。

An engine cyclic variation model has been built by using the residual gas temperature for the n-th cycle as the input of the model, through constant pressure intake process, adiabatic compression process, constant volume combustion process, adiabatic expansion process, adiabatic blow down process and constant pressure exhaust process to approximate the thermodynamic processes in the cylinder, finally the residual gas temperature for the (n+1)-th cycle can be estimated.

基于循环间变动的排气温度建立了一个发动机循环变动模型。在这个模型中，第n个循环的排气温度作为模型的输入，通过定压进气过程、绝热压缩过程、定容燃烧过程、绝热膨胀过程、定容放热过程和定压排气过程来近似汽缸内的热力学过程，最后得出第n+1个循环的排气温度。

On the foundation of the reasonable fixed position, according to process the process in of be subjected to the dint appearance and clip the tight dint to arrange the principle, drawing up to clip the tight dint to arrange the project reasonablely;Passing the related calculation formula, cliping the tight dint size to carry on estimate towards process in the process, choosing the size structure to clip the tight motive component reasonablely, according to an oneself of work structure and processed requests and process to be characteristics by the dint in the process, choosing the design to clip the tight organization to guarantee by attain that the work piece positions accurate reasonablely, fast .

在合理定位的基础上，根据加工过程中的受力状态和夹紧力的布置原则，来制定夹紧力合理的布置方案；通过相关计算公式，对加工过程中夹紧力大小进行估算，来选择尺寸结构合理的夹紧动力元件，根据工件自身结构和加工的要求以及加工过程中受力的特点，来选择设计合理的夹紧机构以达到保证工件的定位的准确，快速。

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度差分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁差动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器，对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计，建立了器件的三维实体模型以及两维降阶模型，对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计，同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程，开展了一系列重要工艺步骤的单项工艺试验，对工艺流程与工艺参数进行了优化，针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析，并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合，建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。

This thesis expatiates on the theory and architecture and primary content of Reusable Design technology and Reusable Process Design technology, study the feasibility and practicability of some important technology about Reusable Process Design, adopt a special knowledge representation to describe reusable process design information and make use of "FenHua "to realize knowledge acquisition about fuzzy knowledge.Craft database system is the mostly important support of CAPP (Computer Aided Process Planning) system. To some extent, the essence of process design is a process that craft data is visited, used, dealt with and generated. This thesis expatiates on data base design technology. Based on the detailed analysis of the craft data"s characteristic and sort and the craft database"s component part, the author build craft database through detailed conceptual design and logical design and physical design for data base.the application and research of Web database technology becomes increasingly wide, which can make a close combination between Database technology and Web technology.

本文阐述了基于知识复用的可复用设计技术与可复用工艺设计技术的理论、体系结构与主要研究内容，研究了可复用工艺设计中的若干关键技术的可行性、实用性，采用了三表知识表示来描述工艺知识及利用"分划"的方法对灰色知识进行知识获取；工艺数据库系统是计算机辅助工艺设计系统的重要支撑系统，从某种程度将，工艺设计的实质就是对工艺数据库中工艺数据的访问、调用、处理和生成新的数据的过程，本文阐述了数据库系统设计技术，在详细分析工艺数据的特点、分类以及工艺数据库的数据库组成的基础上，通过对工艺数据库概念结构、逻辑结构、物理结构等几个方面的详细的分析与设计，建立了系统工艺数据库； Web数据库将数据库技术和Web技术很好的融合在一起，其应用研究日益广泛。

Only one case had length of styloid process less than 30mm and inclined angle less than 25 degree on both sides. Conclusion: Excessive length of styloid process and abnormal angle play important role in diagnosing styloid process. 64slice spiral CT three dimension VR and MPR can display styloid process clearly in three dimension space, measure the length exactly, and show the relationship between styloid process and tissue around distinctly. It is a precise and ideal way for diagnosis of styloid process.

茎突过长结合角度异常是诊断茎突综合征的重要依据。64排螺旋CT MPR和VR重建能清楚、直观地显示茎突在三维空间的全貌，准确地测量其长度、角度以及反应其与周围组织结构的关系，是诊断茎突综合征的一种较准确、且理想的检查方法。

Now she was hungry and angry.She began to smoulder.

现在她又饿又气，她开始流露难以抑制的怒火。

You have placed our iniquities before You, Our secret sins in the light of Your presence.

诗90：8 你将我们的罪孽摆在你面前、将我们的隐恶摆在你面光之中。