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The selection of geological prospecting in different stages(initial-prospecting, detailed-prospecting)(2)the selection of geological prospecting in the deep-laid and shallow-laid of tunnel project (3)the selection of geological prospecting of tunnel projecting in different geological conditions Finally, the author summed up main problems needing to be solved in tunnel engineering geological prospecting as follow:(1)differentiate stratum and find out the depth and thickness of different stratums in the tunnel section (2)find out geological structure and existence situation of fault, broken zone and weak plane (3)find out weathering level of bed rock to classify surrounding rock combining speed materials (4)differentiate stratum structure of the entrance of tunnel to judge the stability of it (5)find out existence situation and performance of ground water (6)situations of other harmful geological phenomenon In view of above problems and classification of surrounding rock, the author showed principles of rational choosing of methods in geological prospecting and counted disperse range of physical character parameter value in different petrosal character, getting achievements as follow:(1)summarization of effect, merits and demerits of different geological prospecting methods in the tunnel geological investigation (2)method selection and arrangement principle of tunnel engineering geological prospecting in different geological conditions and prospecting stages (3)According to previous experience and cases, the author concluded the物性parameters most in use ,and showed the basis of selecting geological prospecting methods in different geological conditions.
论文中用几个应用实例来说明:(1)不同勘察阶段物探工作的选用;(2)深埋、浅埋隧道工程物探工作的选用;(3)不同地质条件隧道工程物探工作的选用。最后总结归纳出隧道工程物探所需要解决的问题主要有:(1)划分地层,查明隧道通过剖面的各地层深度与厚度。(2)查明地质构造,隧道轴线段有无断层、破碎带、软弱层面等。(3)查明基岩风化程度,从而结合速度资料进行围岩分级。(4)划分洞口地层结构,判断洞口稳定性。(5)查明地下水赋存情况及其活动动态。(6)其他不良地质现象存在情况。针对上述需要查明的地质问题与计算围岩分级情况,论文提出合理选用物探方法的原则,并统计了物性参数值在不同岩性中的分布范围。得出以下研究成果:(1)总结出各物探方法在隧道地质调查中的作用和优缺点。(2)得出不同地质条件下和不同勘察阶段,隧道工程物探方法选择和布置的原则。(3)根据以往工作经验和事例,对常用的物性参数进行了归纳总结,同时介绍了不同地质条件下物探方法选择的依据。
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Secondly, the platform of IPTV set-top box named DM6446 is introduced, and then the AVS video coding standard which is implemented as the video coding standard of IPTV is introduced. The kernel architecture, peripheral devices of DM6446 and the key technique of AVS video coding such as transformation, quantization, intra-prediction, inter-prediction, interpolation, and loop filter is introduced in detail. Thirdly, the system procedures of set-top box which are implemented on the ARM side of DM6446 are introduced in detail. This part focuses on the demultiplex of audio and video data, the design of data interface, the playback of audio and video, and the communication between ARM and DSP. Fourthly, the loop filter algorithm of AVS video coding standard is introduced in full detail, and the optimized procedures of the algorithm on the DSP side of DM6446 are introduced, and then the optimized results are presented. Fifthly, the thesis introduces and analyzes the state-of-art technique of deblocking filter, and proposes a deblocking method, and then the results of proposed method are given. Finally, summarize of this thesis and further development is given.
首先对IPTV技术、视频编解码技术以及去块滤波技术做了简要介绍;然后介绍了IPTV机顶盒的实现平台DM6446,并介绍了该处理器的外围接口和内核结构,同时介绍了作为本IPTV系统视频标准的AVS第二部分视频标准,以及该标准中变换量化、帧内预测、帧间预测、插值和环路滤波等多个模块的算法;接着,详细介绍了机顶盒系统相应程序在DM6446 ARM核上的实现,重点介绍了音视频系统码流的解复用、数据接口设计、音视频的播放以及ARM核与DSP核之间的通信;然后,详细介绍了AVS视频标准中环路滤波算法及该算法在DM6446 C64+内核上的优化,并给出优化结果;然后对去块滤波算法进行了研究并提出了一种环路滤波方案,同时给出了此方案的实验结果;最后总结了本文的工作,并提出了可以改进的方向。
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In this paper, a mathematical description of mutation operator and a concept of mutation function for the study of evolutionary programming and evolution strategies are proposed, and several methods and examples of constructing mutation operator with uniformly distributed random variables are presented.
进化算法是研究全局优化算法中最重要的随机算法之一,本文给出了进化规划和进化策略的变异算子的数学描述,并提出变异函数的概念,在此基础上,给出了用均匀分布的随机数构造变异算子的几种方法和若干例子。
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The corresponding diagnosable systems are characterized in terms of a graph-theoretic condition, and a series of valuable conditions on a diagnosable system is presented. And a class of diagnosable systems that have a minimum number possible of communication links (known as optimal diagnosable systems) is proposed.
得出了系统中故障结点机数不超过n-2的结论;●解决了特征问题,给出了按图论方式表述的充分必要条件;●解决了诊断算法问题,给出了一个有效的诊断算法,该算法具有线性时间复杂度和多项式诊断报文总规模的特性;目前,上述研究工作所取得的结果还没有文献报导。
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P.001; 138±60 min.vs 249±138 min. p.001. In conclusion,(superscript 99m)Tc-RBC erection penography is a simple, less invasive and valuable screening test for vasculogenic impotence and to differentiae arteriogenic from venogenic impotence.
所以,本研究结论是(上标 99m)Tc-红血球之阴茎海绵体勃起影像是一个简单,低侵袭性且很有价值的初步检查,足以辨识出血管性阳萎病人,且进一步鉴别诊断出动脉性及静脉性之阳萎病人。
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For example, Keyfitz made the classification of the bifurcations in one state variable, without symmetry up to codimension 7; Golubitsky and Schaeffer obtained the classification of the bifurcation problems in one state variable with Z_2 symmetry, in one parameter up to codimension 3; Golubitsky and Roberts studied the classification of degenerate Hopf bifurcation in two state variables with dihedron D_4 symmetry, in one parameter up to topological codimension 2; Melbourne obtained the classification of bifurcations in three state variables with octahedral symmetry, in one parameter, up to
需要指出的是以上研究均没有考虑分歧参数的对称性,Futer,Sitta和Stewart的工作虽然考虑了分歧参数的对称性,但仅限于分歧参数与状态变量具有相同的对称性,他们得到了状态变量与分歧参数均关于二面体群D_4对称,拓扑余维数不大于1的分歧问题的分类。高守平和李养成则讨论状态变量和分歧参数均具有对称性且对称性可以不同的分歧问题,并给出了状态(来源:A770707BC论文网www.abclunwen.com)变量关于二面体群D_4对称,分歧参数关于S~1对称,拓扑余维不超过1的分歧问题的分类。本文第一章讨论两个状态变量关于二面体群D_3对称,两个分歧参数关于O(2)对称的分歧问题,给出了该类分歧问题在非退化条件q(0)≠0下所有情形的分类与相应的识别条来源:AdadaBC论文网www.abclunwen.com
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The main results, obtained in this dissertation, may be summarized as follows:1. In chapter 2, the differential property of the optimal value function with a non-compact set is studied. The expression of its lower-Hadamard directional derivative is obtained.
第2章研究了非紧致集上最优值函数的微分性质,首先给出了最优值函数的Hadamard下方向导数的表达式,其次在最优值函数的有效域为非空凸集的情况下刻画出了次微分的表达式。
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The last drilling results indicates seismic Spectral-Deconversion imaging technology to research time-space disciplinarian of aggradations unit and foundation of aggradations mode, estimate of discriminability reservoir thickness and prediction of mul-laminated sand-clay.
其预测结果反映出河道空间演化规律,刻画出辫状河道平向宏观展布特征,对研究区井位整体部署、局部调整具有重要指导意义。
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The principle and design method of vibration energy dissipation and structural control are introduced.
介绍了结构控制和消能减振技术的减振机理和减振设计方法,对不同结构构造的粘滞流体阻尼器的耗能原理进行了研究,研制出了一种性能稳定的双出杆型工程结构减振粘滞流体阻尼器。
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Based on theoretic research, rotary-ditch machine is produced and orthogonal test is carried out in the farm. By variance and extreme deviation analysis on the test result, all the influence factors on ditcher casting performance are gained, superior level and optimum combination are found out, relation curve of performance target along with factor change is provided.
在理论研究的基础上,设计并制作开沟部件,在田间对其进行了正交试验,对试验结果进行极差分析和方差分析,得出各因素对开沟抛土性能的影响,找出各因素的较优水平和最优组合,并给出性能指标随各因素变化的关系曲线。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。