分析上

In this paper, incising blasting engineering in granite row stone exploitation as the research object, in order to analyze the fracturing mechanism principles of V-shaped notch blasting and the influence of blasting parameter changing to V-shaped notch blasting effect, the elastic-plastic isotropy and multi-notched hole of plane strain model is set up. Dynamical finite element analysis software ANSYS/LS-DYNA is applied to calculate dynamic stress distribution and its change rule of rock around notched holes and between two holes, and dynamic fracturing mechanism is analyzed with fracture mechanics theory.

文章以花岗岩荒料开采中的切割爆破工程实践为研究对象，为分析V形刻槽爆破成缝机理及爆破参数改变对刻槽爆破效果影响等内容，建立了各向同性脆性材料的多刻槽孔准平面应变模型，以显式动力分析有限元程序ANSYS/LS-DYNA为模拟运算工具，详细计算了在动载作用下槽孔周围及双孔连心线上岩体的动态应力分布与变化规律，并运用断裂力学理论分析刻槽爆破动态成缝机理。

Then we established the 3D model of specially composite boring tool base on SolidWorks.And we used COSMOSWorks that a plug-in of SolidWorks which a software of FEA to maked static analysis and frequency analysis with this 3D model.

然后在SolidWorks平台上设计出该专用组合镗刀的三维模型，并利用了SolidWorks的有限元分析插件 COSMOSWorks对专用组合镗刀的三维模型进行静力分析和频率分析。

Based on solidification theory and analysis of process of Aluminum alloy Direct Chill casting, the control system of DC casting for big size billet has been designed. For improving the quality of billet-optimized control strategy of cooling water must be determined to eliminate the instability of the traditional feedforward control, PID control and cascade control have been introduced.

通过对铝合金DC铸造工艺过程的分析，建立了铝合金DC铸造的控制系统；在分析DC铸造铸锭结晶凝固原理的基础上，完成了冷却水量自动控制的系统设计，并进行了控制策略的选择；基于对铝合金直接水冷铸造，DC凝固原理和工艺过程的分析，本文提出了大尺寸铝合金圆锭铸造的控制系统设计方案。

But, undercut technology may deteriorate the stresss concentration. In order to improve the situation, for a crank throw of a given ductile iron crankshaft, finite element analysis is conducted. The analysis result is optimized and related fatigue calculation is carried out. A compare between calculation and test results is performed and compared results show that conculation result is reliable. Therefore a good undercut structure is found and the reliability of crankshaft is improved.

球铁曲轴加沉割槽往往会加大曲轴的应力集中，根据某厂设计的球铁曲轴，本论文利用有限元分析的方法，对其单拐曲轴的沉割槽进行有限元模拟分析，在分析结果的基础上进行优化设计，最后得出较好的沉割槽结构，从而得到较好沉割结构，提高曲轴的可靠性。

The appraisal and the finding of current mill condition , the forecasting of conditiontrend ,fault diagnosis 、maintenance strategy arithmetic and decision-making deducingprocess.To enhance software function of equipment management information system, mill condition-based maintenance software aided system is developed,it can save mill condition data into equipment information management platform,through mill software module to analysis sequenced detection data and automaticly give the appraisal of current mill condition , the forecasting of condition trend ,fault diagnosis,maintenance strategy and decision-making suggestion for mill technician as a reference to decide whether tostart mill condition-based maintenance.

在燃煤电厂既有的设备点检和大小修管理信息系统软件平台的基础上，进一步开发磨煤机的状态检修软件支持系统模块，能存储磨煤机的状态点检数据入设备信息管理平台，通过磨煤机状态检修软件支持系统模块对一段时间内的磨煤机点检数据进行处理从而给出磨煤机当前状态的分析与评价，磨煤机状态趋势的预测，磨煤机的故障分析、故障原因查找和解决措施，将最终的维修决策建议提供给磨煤机的专业技术维修人员和管理决策者参考，结合软件分析和人工经验的干预以决定是否开始磨煤机的状态检修。

Analysis is made on block effect to cutters of PDC bit with 3 factors: different top shape,cutter-distributing and wearing degree.By the interaction(radial range and altitude difference of each cutter) of three adjacent cutters,the cutter block is further analyzed with these factors,but wearing degree is simplified to be considered as the cutters vertical to the assembling plane.

中文摘要：对PDC钻头冠部形状及不同的布齿密度和切削齿在不同的磨损状态下对PDC钻头切削齿受力的影响进行了分析；用相邻的3个切削齿之间的关系（不同的切削齿与切削齿之间的径向距离和切削齿之间的高度差）来分析PDC钻头冠部形状和切削齿布齿密度对切削齿受力的影响，以及将切削齿的磨损状态简化成与切削齿在钻头上装配方向垂直的平面来分析切削齿磨损状态对切削齿受力的影响。

Both deviation analysis method based on correction coefficient and deviation analysis method based on deviation factor are presented by introducing the principle of deviation analysis. With an instance, the influence on heat consumption or coal consumption rate by the deviation of main operational parameters and technical economy indexes are quantificationally calculated.

在阐述偏差分析机理的基础上，提出基于校正系数的偏差分析方法和基于偏差因子的偏差分析方法，结合实例，定量地反映出主要运行参数和经济技术指标的偏差对机组热耗或煤耗的影响。

The article starts with the basic conception of urban feature, makes contrast analysis with relevant fields of urban landscape, urban ecology, urban geography, urban aesthesis, clarifies the study subject and field of urban feature, relates the study with the specialty of urban feature study contents, and based on the probe of urban feature's characteristics of obscurity, certainty and duality of culture and form, puts forward with systematic analysis the conceptions of urban feature hiding factor, urban feature surfacing factor, urban feature core, urban feature mark, space structure core and times core, and sets up urban feature database.

论文首先从城市风貌的基本概念出发，通过与城市景观、城市生态、城市地理、城市美学等相关学科的对比分析，明确了城市风貌研究的对象和范畴，结合城市风貌研究内容的特殊性，在深入剖析了城市风貌的模糊性、确定性、文态与形态双重性等特征之后，运用系统分析的观点，提出了城市风貌潜态因子、城市风貌显态因子、城市风貌核、城市风貌符号、空间结构核、时间文态核等概念，在系统分析的基础上，建立了城市风貌信息数据库。

In this paPer, after reading abundantrelevan literatUre, domestic and oversea, combing the character of QialluangDaoElectric Power Corporaion, based on Oacle7.3 database we designed a systemwhich ahas at the calculaton.

本文在分析国内外大量文献的基础上，以电网理论线损的计算、分析及预测为目标，并结合秦皇岛电力公司的特点，应用Powerbuilder6.5编程语言设计开发了基于Oracle7.3网络数据库的电网理论线损计算、分析及预测系统。

In 1999, the Liaoning provincial important Sci-Tec started a key problem project for the technology of protecting and preventing of dangerous river bank and plain reservoirs. Under the support of this project, this research was carried out for experiment of engineering properties and bank engineering applications of geosynthetics. In order to solve the life and soil retention criteria of geosynthetics problems in bank engineering applications, the indoor tests, in-situ tests, locale antitypes tests and observations, theory analysis, and engineering examples analysis have been performed.

结合堤岸防护工程实际条件，采取室内试验、野外试验、工程现场原型试验或观测以及理论分析和大量工程实例验证分析的方法，对堤岸防护工程中应用的土工合成材料相关工程特性，尤其是老化规律和较大孔径织造布保土性准则，进行了较系统、深入的试验研究；在此基础上，通过典型工程实例及大量工程应用实践总结分析，重点对土工织物软体排、土工模袋、土工膜堤岸防护工程的设计方法和施工技术进行了研究。

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％。