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Based on the tensor expression for the Breit-Pauli Hamiltonian,and with the aid of irreducible tensor theory,the theory of relativistic corrections to the non-relativistic energies of many-electron atoms has been generalized to the case in which Racah wave functions are the linear combinations of multi-Slater wave functions,analytic formulism for calculating the relativistic corrections,which include mass correction,one-and two-body Darwin correction and spin-spin contact interaction,has been derived,all the angular interactions and spin sums involved in the problem have been worked out explicitly by using irreducible theory.
以Breit-Pauli哈密顿的球张量形式为基础,借助不可约张量理论,将多电子原子能量的相对论修正理论拓展到了原子的拉卡波函数为多个Slater基函数的线性组合的情形,导出了此情形下多电子原子能量相对论修正(包括相对论质量修正项、单体和双体达尔文修正项、自旋-自旋接触相互作用项)的解析表达式,完成了所有角向积分和自旋求和计算。
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By using this teaching software, the experimental contents are deepened and expanded, and the experiments, which cannot be completed in the laboratory, now can be carried out with the aid of the computer emulation inculcation .
通过对该教学软件的作用,加深和扩展了实验教学内容,使无法在实验室完成的操作在计算机上仿真完成
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In the spiral pipe heat exchanger exports terminal, the ammonia steam temperature has been heated up 85 ℃--95 ℃, by now, the ammonia steam had the 45kg-55kg/cm2 ammonia steam pressure, sent in the ammonia steam turbine through the constant temperature pipeline, impelled ammonia steam turbine revolving, led the generator electricity generation;After the ammonia steam makes the merit release energy, the temperature drop, the returns ammonia storage tank, passes through again adjusts the press pump to press into the spiral pipe-type heat exchangers to carry on the next circulation;Including the ammonia steam turbine entire ammonia steam road is becomes the independent closed cycle system, is isolates completely with the outside air;The ammonia steam only plays the carryhome and the shift energy role, in the electricity generation process does not consume the actuating medium, the stored energy carrier water also is only gets up the carryhome and the shift energy function,The waterway also is from becomes the independent closed cycle system, in the electricity generation process also the needless water consumption, through the actuating medium ammonia steam and the stored energy carrier water unceasing shuttle service, transforms through the heat interchanger the solar energy as the actuating medium ammonia steam heat energy and the kinetic energy,With the aid of the ammonia steam turbine heat - machine transformation function and the generator machine - electricity transformation function, has realized the solar energy hot - electricity entire conversion process, transforms continuously the solar energy into the electrical energy, power supply for foreign;The low temperature generating system must solve three big technical keys:One, the anticorrosion (has actuating medium has strong corrosiveness), two is Explosion-proof (Some actuating medium Can have the detonation with the air mix when divulging, controls warm malfunction, elevates temperature suddenly also can have detonation), three is guards against the revolution axis divulging
以太阳能低温发电系统为例,低温发电方法是这样进行的:以水作为储能载体的太阳能采集器将太阳能采集起来,将水温提升至85℃--98℃;用氨作为工作介质储于氨储罐及氨汽路中;采用螺旋管型热交换器;用调压泵将氨储罐中的氨汽压入螺旋管型热交换器的螺旋管内,用调压泵将携带太阳能的85℃--98℃的储能载体热水压入螺旋管型热交换器的螺旋管外壁空间进行循环式热交换,在热交换器的螺旋管出口端,氨汽温度已被加热到85℃--95℃,这时,氨汽具有45kg—55kg/cm2的氨汽压力,通过恒温管道送入氨汽轮机,推动氨汽轮机旋转,带动发电机发电;氨汽作功释放能量后,温度下降,返回氨储罐,再经调压泵压入螺旋管型热交换器进行下一次循环;包括氨汽轮机在内的整个氨汽汽路是自成独立的封闭循环系统,与外界空气是完全隔绝的;氨汽只起携带和转移能量的作用,发电过程中并不消耗工作介质,储能载体水也是只起携带和转移能量的作用,水路也是自成独立的封闭循环系统,发电过程中也不消耗水,通过工作介质氨汽和储能载体水的不断循环运行,通过热交换器将太阳能转化为工作介质氨汽的热能和动能,借助氨汽轮机的热—机转化功能和发电机的机—电转化功能,实现了太阳能的整个热—电转化过程,将太阳能源源不断地转变为电能,对外供电;低温发电系统要解决的三大技术关键:一是防腐(有的工作介质具有较强的腐蚀性)、二是防爆(有的介质泄漏与空气混合会产生爆炸,控温失灵,急剧升温也会产生爆炸)、三是防轴漏(汽轮机是动态旋转体,必须解决工作介质的防轴漏问题)。
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It was born in the modern city and it spreads itself through the culture product produced by the culture industry with the aid of modern popular medias, such as radios, televisions, newspaper, magazines and Internets, at the places like disco-ballrooms, bars, shopping plazas, bathing plazas, with the style as jeans, longhair, rock-roll. Its a culture phenomenon that keeps closely touch with commerce activities like buying and selling or consume.
它是一种以都市为生存土壤的,借助大批量生产的、面向大众传播的文化产品,使大多数人形成了一致的生存方式和趋同的需要并凝聚为一个共同整体且在趣味、习惯、风俗、意义、信仰与价值上共享的文化现象,它通过广播、电视、报纸、杂志、网络等现代媒体,在迪厅、酒吧、购物广场、洗浴中心等场所,以牛仔服、披肩发、摇滚乐等形式传播存在着。
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When the nonlinear layer which has weak nonlinearity is thin and far away from the seismic source which be low energy, compared with the corresponding results in linear antis, the medium nonlinearity produces abort 1/10~1/4 and 1/10~1/3 differences of instantaneous dominant frequency aid bandwidth. These instantaneous feature differences of seismic waves induced by the nonlinearity of media become weaker and weaker with the decrease of source energy. However, with the increase of the wave travel path within the mummer layer, the nonlinear accumulation effect could still keep such phenomena as the waveform distortion and instantaneous dominant frequency and bandwidth variations in records.
在本文给定的弱非线性介质中(非线性炽较薄且远离震源),在震源能量较低的情况下,介质的非线性效应会造成地震波瞬时主频和频宽相对于线性介质情况分别为1/10~1/14和1/10~1/3左右的变化量此外,随着入射波能量的下降,介质非线性所造成的地震波瞬时特征的变化量减小,但随着地震波在穿越非线性介质时路径的加长,非线性作用的累积效应使得波形畸变和频率分布特征的变化等现象得以维持。
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The writer carries on processing to the Laichau area ETM remote sensing phantom data with application digital image processing method, and has obtained the good effect. She has withdrawn the mineralization alteration information and strengthened the loop of wire phantom characteristic. She has verified the golden ore deposit was in the loop of wire structure connection, the junction cuts as well as the ring structure edge spot. With the aid of in the remote sensing study information analysis method, the writer withdraws the mineralization advantageous loop of wire structure from the remote sensing phantom, and uses the mineral resource appraisal analysis system MORPAS software developed by China University of Geology to linear structure quantitative, gained massive quota information related with the gold mineralization.
本文应用数字图像处理方法对莱州地区的ETM遥感影像数据进行处理,取得了较好的效果,提取出了矿化蚀变信息并增强了线环影像特征,已探明的金矿床均处于线环构造交汇、交切以及环形构造边缘部位;借助于遥感地学信息分析方法,从遥感影像中提取成矿有利的线环构造,并利用中国地大开发的矿产资源评价分析系统MORPAS软件对线性构造定量化,获取了大量与金矿化有关的定量信息。
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Nor did he neglect the aid of dialectics, remarking with subtilty that the epithet "Natural Son of God" could not be predicated of "The Man Jesus", who was begotten by temporal generation; who was inferior to the Father; who was related not to the Father especially, but to the whole Trinity, the relation in questions remaining unaltered if the Father or the Holy Ghost had been incarnate instead of the Son.
他也没有忽视援助的辩证法, remarking与subtilty认为修饰语"的自然神的儿子"不能推测,"该名男子耶稣",他们是造物主的时序生成;谁劣的父亲,谁是不相关该名父亲特别是,而且是对整个三一,关系问题,其余不变,如果父亲或圣灵已肉身而不是儿子。
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So, in this paper, a circular cavity witha large radius is used to replace the straight boundary of thehalf space, then the half space problem can be changed tothe scattering problem of two circular cavities to the steadyincident P-wave . Having the aid of the mature cylinderfunction theory, the general solutions of the wave functionscan be given, and an infinite linear algebraic equations ofthe unknown coefficients in the wave functions can be gottenwith the boundary conditions and the Fourier complex seriesexpansion technology, the infinite linear algebraic equationscan be approximately solved by the finite trunction withsatisfying some definite precision, at the basis of thissolution of the equation, the variations and the lay-outs ofthe DSCF at the circular cavity boundary vs. the differentincident angles, the different embedded depths of thecircular cavity as well as the different dimensionless wavenumber of the incident P-wave.
为此,本文采用一个半径很大的圆孔来代替半空间的直边界,将该半空间问题转化为一无限大空间中两个圆孔对稳态P波的共同散射问题,借助于成熟的柱函数理论,通过写出问题波函数的一般形式解,利用问题的边界条件,并采用复数傅立叶级数展开技术将其化为一个仅包含问题波函数中未知系数的一无穷线性代数方程组,在满足一定计算精度的前提下,通过有限项截断进行近似求解,进而讨论了圆孔边界处的动应力集中系数随不同入射角、不同的圆孔掩埋深度、入射波的不同无量纲波数以及介质的泊松比变化和分布情况。
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The Zheng Yuanjie writing zoomorphism has the human nature glory spot, the author carries on the human and the animal the contrast, with the aid of animal's field of vision looked the human nature ugliness, and through the animal story insinuated the human nature ugliness, by its promulgates and the critique human nature ugliness.
郑渊洁笔下的动物形象具有人性的光辉,作者把人和动物进行对比,借助动物的视野来看人性的丑陋,并通过动物故事来影射人性的丑陋,揭示和批判人性的丑陋。
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Through the research of direct search method based on 3D FEM, and its application for the tunnel slope stability analysis, the objectives of this work in this paper are as follows:1. The dynamic programming as well as its application for 3D side slope stability analysis is studied. With the introduction of graph theory concept, one kind of glide pattern of 3D slope is constructed, and the critical slip surface with smallest safety factor is searched with the aid of one auxiliary function including safety factor;2. Using the C++ programming language, the 3D slope stability analysis and the direct search procedure is established, and this method is testified applicably by some contrast analysis, also some influence factor in analysis is discussed;3. Integrated with the different actual situation in tunnel slope, considered its excavation, timbering and rain infiltration, its stability influence and rule is researched used this method, also some processing measure is proposed.
本文通过对三维有限元直接搜索法的研究,并将其应用于隧道边坡的稳定性分析中,主要的研究内容有:1、研究了动态规划原理及其在三维边坡稳定性分析中的应用,引入图论概念,构筑出一种边坡三维滑裂面的滑动模式,借助一个包含安全系数的辅助函数并通过动态搜索求得临界滑裂面与最小安全系数;2、采用C++程序设计语言,编制出边坡三维稳定性分析以及直接搜索法的程序,通过一些算例的对比分析,验证本文方法的适用性,并讨论了三维分析中的一些影响因素。3、结合隧道边坡的不同实际情况,考虑施工开挖过程、衬砌结构及降雨渗流等方面的因素,利用本文方法研究对其稳定性的影响和规律,并提出处理措施
- 推荐网络例句
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As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.
每逢看到沃林顿那刚毅的脸,那乌黑、忧郁的眼睛,她便会相信,他一定作过不幸的爱情的受害者。
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Maybe they'll disappear into a pothole.
也许他们将在壶穴里消失
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But because of its youthful corporate culture—most people are hustled out of the door in their mid-40s—it had no one to send.
但是因为该公司年轻的企业文化——大多数员工在40来岁的时候都被请出公司——一时间没有好的人选。