计算
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With the establishmentof the equivalent medium model, RTM-DRE was applied to study radiative transfer intransparent medium with scattering particles. By taking into account of absorption andscatter of particles, absorption of binder and reflection of interface, the apparent spectrumabsorption model of thermal control coatings was developed by RTM-DRE combined withMies theory. Validity, computational error and time of the model were validated andanalyzed. Furthermore, the apparent spectrum absorption characteristics of thermal controlcoatings were studied, and the influences of optical characteristics of binder and particles,volume fraction of particles, particles diameter, characteristics of interface, and incidentangle of irradiance were analyzed.
采用RTM-DRE研究热控涂层内辐射传递,结合Mie氏散射理论,考虑粒子吸收与散射、基料吸收、界面反射等因素影响,建立热控涂层表观光谱吸收率计算模型,验证计算模型的正确性,分析计算模型的计算误差与计算时间;在此基础上,通过计算热控涂层表观光谱吸收率来研究热控涂层表观光谱吸收特性,分析基料与粒子光学特性、粒子体积份额、粒径、界面反射特性、辐射能量入射角等因素的影响,初步研究空间环境因素对热控涂层表观光谱吸收特性的影响,采用系统灵敏度理论定量分析热控涂层表观光谱吸收特性变化对卫星温度的影响。
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Base on central line coordinate given out and calculation formula provided by this paper that calculate azimuth of normal line of any point on central line, calculation of side line coordinate is connected with central line coordinate only, and has no concern with other calculation.
提出了利用道路中线的法线求解路线任意点坐标的计算模式,在计算出中线坐标的基础上,给出了计算中线任一点法线方位角的计算公式,使边桩坐标的计算只与中线坐标有关,而与其他计算无关。
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Through analyses and comparisons with other methods, the equation squared root method of current is applied for the distribution line loss. Aim at the shortcomings of traditional equation squared rood method of current, improved methods are presented. This papers presents the treatment of small power sources in distribution network and the loss calculation of transformer winding resistance. In addition, the method on the base of queue is applied for programs.
通过对当前较为成熟的几种配电网线损计算方法的深入研究,分析和比较了这些方法的不同特点,并针对传统均方根电流法的不足,提出了对配电变压器铜损的改进计算方法;提出利用等效容量的概念来解决小电源问题,使得在配电网理论线损计算中对小电源的处理变得简便易行;在配电网理论线损计算的程序实现上,引入了基于队列的设计方法,不仅极大地提高了计算效率,而且可以得到任意节点的线损数据,方便了线损计算和管理。
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The invention discloses a method and apparatus for updating the state of a computing device by first receiving a message processable by the computing device, the message comprising data for instructing the computing device to request at least one update file from at least one remote computing entity, the at least one update file for updating a file resident on the computing device; and processing the message to effect updating of the computing device.
本发明描述了一种用于更新计算设备的状态的方法和装置,其中,首先接收可由计算设备处理的消息,所述消息包括用于指示计算设备向至少一个远程计算实体请求至少一个更新文件的数据,所述至少一个更新文件用于更新驻留在计算设备上的文件;以及处理所述消息,以实现对所述计算设备的更新。
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Based on the eco- environment function, confirmed the constitution of eco- environment water demand(including the inside of the watercourse.and the ecological water demand of the outside of the watercourse such as ecological water demand of economical crop, of lake or reservoir and of cities.).③Analyzing the physical geography, hydrography, economy characteristic and water resource status, getting the proper calculation method. The Tennant applied to the eco- environment water demand of inside of the watercourse, woodland minmum eco- environment water demand calculation method applied to the eco- environment water demand of woodland, water ration method applied to farmland the eco- environment water demand, water evaporation method applied to the reservoir eco- environment water demand.
本文以流域生态环境需水为主要研究对象,因此重点阐述了流域生态环境需水量的分类和计算方法;②通过分析流域生态系统构成与流域生态环境功能,并分时段和河段考虑,确定了桃花江流域生态环境需水量的组成,即包括维持现状河道生态环境功能现状的现状生态环境需水量与流域生态环境改善的生态环境需水量,前者包括河道内生态环境需水量(维持河道基本生态功能需水量、维持河道自净稀释功能需水量、补充地下水水量及美化流域景观娱乐需水)与河道外生态环境需水量(流域内植被、森林、农田的需水量和与河道相连的池塘、水库等的需水量);后者还包括为治理改善流域生态环境而拟规划林业生态建设所需水量;③对桃花江流域的自然地理、水文地质和社会经济特征以及水资源现状及其主要生态环境问题进行了综合分析,提出了适合桃花江流域的生态环境需水量计算方法,即采用Tennant法计算河道内生态环境需水量,采用林地最小生态环境需水量法计算林地生态环境需水量,采用需水定额法计算农田生态环境需水量,采用水面蒸发法计算水库、池塘生态环境需水量。
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Most of the current finite element software packages treat it using the net-radiation method or absorbed radiation method based on the assumption of isothermal surface with uniform radiation heat flux,which brings the conflict between the precision and the quantity of grids.
进行了选用高阶单元、采用高斯积分精确计算单元表面变辐射热流方法的研究,从而摆脱了一致表面温度和辐射热流的假设,使得在相同网格密度的情况下计算精度大大提高;同时,从包含辐射换热问题的有限元计算方程出发,采用与有限元数值计算时相同的积分方案,只在独立的积分点处计算辐射热流,克服了积分方法计算效率低的缺点。
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In combination with the crushed rock slope as an example, the allocation of an anchorage force on longitudinal beams and transverse beams is calculated by adopting the distribution coefficient law of the nodal form at first. Then the internal forces of the lattice beam are calculated respectively through the software on the basis of Winkler elastic foundation model and the semi-infinite foundation model, and then compared with the internal forces which are based on simplified foundation pressure calculation. The active pressure of rock is calculated approximately by Ranking soil pressure theory in the working stage. Sequentially, the reinforcing bars are disposed by two-stage's averagely calculated values.
以破碎岩质边坡为例,采用节点荷载分配法计算了锚索锚固力在格构梁纵、横梁之间的分配比率,然后基于Winkler弹性地基模型和弹性半空间地基模型分别计算格构梁在张拉阶段的内力,并与采用简化的地基反力计算值对比;采用朗肯土压力理论近似计算在工作阶段主动岩体压力,将地梁视为在线性分布力作用下倒置于坡面上的连续梁,按力矩分配法计算地梁内力,取两阶段计算平均值进行配筋。
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In the algorithm, there is no master site that objects address computations must go through or access to a centralized directory. All compute nodes and storage nodes calculate node address independently, the objects access and storage nodes change never require atomic updates to multiple clients. The compute nodes adapt to the change of storage nodes by client image adjustment algorithm.
该算法使得数据对象分配地址的计算不依赖于中央节点计算或者访问一个集中式目录,所有计算节点和存储节点独立地进行地址计算,并且对数据对象的访问操作或新增节点引起的系统规模变化不需要原子更新到其他计算节点,计算节点通过视图校正算法自主学习,自动适应新的系统规模。
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The boundary condition of small scope is provided by the computation result of large scope, and the computation is also stable after two periods. The computation of temperature field begins and it is stable after six periods. The computation is conducted at three different tide levels, including spring tide, still tide and neap tide.
大范围的流场计算在两个周期后达到稳定,开始计算小范围的流场,小范围的边界条件由大范围计算结果提供,小范围的流场在计算后两个周期后达到稳定,开始计算小范围的温度场,温度场的计算在六个周期后达到稳定。
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Design on the principle that security , economy are rational , esthetic , fix up the selection of structure and structural level of every floor, assign , turn into with PK software AutoCAD revise the part behind the structural level well; Adopt stair and floor calculating and designing a teacher to appoint by hand, and calculate the appointed floor with PKPM software, compare with the floor that calculates by hand, fetch the drawing construction drawing of the head of the two; Calculate by hand the frame which the teacher appoints loads, set up good PKPM and calculate the procedure model of the frame , calculate frame internal force and output file result with PKPM , calculate , get PKPM structure mix muscle picture turn into AutoCAD carry on part punish; Build up pieces of internal force association from frame that PKPM obtain , choose three group unfavorable association design the materials as the foundation most, carry on the design basis of the craft, and draw and obtain the basic detail drawing and match the muscle with AutoCAD.
设计以安全、经济合理、美观为原则,进行结构选型和各楼层结构平面布置,用PK软件布置好结构平面后再转到AutoCAD上进行局部修改;采用手工计算设计老师指定的楼梯和楼板,并用PKPM软件计算指定楼板,与手工计算的楼板进行比较,取二者之长绘制成施工图;手工计算老师指定的框架荷载,建立好PKPM计算框架程序模型,用PKPM计算框架内力并输出文件结果,把PKPM计算得到结构配筋图转到AutoCAD进行局部处理;从PKPM得出的框架构件内力组合,选择三组最不利的组合作为基础设计资料,进行手工设计基础,并用AutoCAD绘制得出基础详图及配筋。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。