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system
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  系统
    A Study on Nondestructive Detection and Intelligent Diagnosis Technology of Anchorage System Quality
    锚固系统质量的无损检测与智能诊断技术研究
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    Research on System Simulation Theory and Application for Construction Processes of Large-Scale Underground Structure Group
    大型地下洞室群施工系统仿真理论与应用研究
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    The Study of Evaporative Type Air-condition System Performance Experiment and Optimum Seeking Based on Intelligent Method
    基于智能方法的蒸发型空调系统性能实验与优选研究
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    Study on Intelligent System of Rock and Soil Blasting
    土岩爆破智能化系统研究
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    Sustainable Planning Theory and Method of Urban Transportation System
    城市交通系统可持续发展规划理论与方法
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  体系
    STUDY ON SOME PROBLEMS OF PRESTRESSED MEGA-FRAME-TUBE WITH SUSPENDED DAMPER CONTROL STRUCTURAL SYSTEM
    预应力巨型框筒悬挂阻尼控制结构体系若干问题研究
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    Study on the Environmental Impact Assessment and Improvement of Cement & Concrete System
    水泥-混凝土体系环境影响评价及其应用研究
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    Study on the Analytical Methods of Structural System Reliability
    结构体系可靠度分析方法研究
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    The Stochastic Seismic Response Analysis for Soil-Structure Interaction System
    土与结构相互作用体系随机地震反应分析
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    Electrochemical Study on Corrosion Process of Steel Rebar/Concrete System
    钢筋/混凝土体系腐蚀过程的电化学研究
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    Research of System Identification and Numerical Prediction Methods in Analyzing Heat Transfer Process of Wall Surface
    建筑墙体表面换热过程辩识方法与数值预测方法研究
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    Study of Multivariable Decoupling Control in VAV System Based on LonWorks Technology
    基于LonWorks技术的变风量空调多变量解耦控制的研究
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    Staggered Truss Steel Framing System Analysis and Design Method
    钢结构错列桁架体系结构分析与设计方法
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    Study on Decision Support System for Urban Intelligent Flood Control and Disaster Reduction
    城市智能型防洪减灾决策支持系统研究
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    Study on Automatic Control and Remote On-Line Monitor Techniques of Dual Water Supply System
    管道分质供水系统自动控制与远程监测技术
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  system
This implies that a system is algebraically integrable (i.e., its eigenvalue problem is explicitly solvable in quadratures) if and only if the differential Galois group is commutative for generic eigenvalues.
      
We apply this criterion of algebraic integrability to two examples: finite-zone potentials and the elliptic Calogero-Moser system.
      
In the second example, we obtain a proof of the Chalyh-Veselov conjecture that the Calogero-Moser system with integer parameter is algebraically integrable, using the results of Felder and Varchenko.
      
The least upper bound for the degrees of elements in a system of generators turns out to be independent of the number of vector variables.
      
We consider 3-parametric polynomialsPμ*(x; q, t, s) which replace theAn-series interpolation Macdonald polynomialsPμ*(x; q, t) for theBCn-type root system.
      
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The simplified Coal characteristic Coefficient β' = 2.35, as proposed in author's two previous papers to ho used with Vr for coal classification, has been for the first time repeatedly proved as shown in many graphs (Fig. 2-Fig 9) to represent (a) the foundamental characteristics of coal, like caking property, heating value, plastic layer thickness. etc. (b) the quality of the side Chain of the coal crystal (c) the percentage proportion of vitrain composition with respect to the other constitutents in petrographic...

The simplified Coal characteristic Coefficient β' = 2.35, as proposed in author's two previous papers to ho used with Vr for coal classification, has been for the first time repeatedly proved as shown in many graphs (Fig. 2-Fig 9) to represent (a) the foundamental characteristics of coal, like caking property, heating value, plastic layer thickness. etc. (b) the quality of the side Chain of the coal crystal (c) the percentage proportion of vitrain composition with respect to the other constitutents in petrographic components, during the different stages of coalification. (2) The simplified coal characteristic coefficient β' can be used to substitute the free swelling index, Roga number L.R. and the plastic layer thickness y etc in the coal classification of type together with the volatile matter on combustible basis VP for the coal classification of rank. (graph 10-graph 16) (3) Besides the VP and β' coal classification system,(Fig - 18), Carbon content on combustible basis CP with the free hydrogen H°= (HP=)for coal classification (Fig-23), VP vervus classification (Fig.-24), VP versus H°(Fig. -25) and VP versus (Fig-26) coal classification are also proposed. Comparisons of the different systems are made with the conclusion of adopting VP versus β' as the most logical system. (4) In the VP versus β' graph; the plastic layer thickness y curves (Fig.-27) represent the the rate of vitrinification during the different stages of coalification due to the different constituents of principal peat-forming plant substances. So a new international three-parameter coal classification system is proposed with the volatile matter on combustible basis VP as the first parameter and the simplified coal characteristic coefficient β' as the second principal parameter with the thickness of plastic layer y in mm as the third parameter. (Fig-28)

(1)简化特性系数β’=2.35代表着煤的分子结构中侧链的本质,而纯燃质挥发分 VP代表着煤的原始物质中侧链与核心部分的相对数量. (2)简化特性系β',即自由氢碳比率函数,是煤岩成分比例不同的标志;角质类和不透明质与透明基质数量的相对比例的标志;是镜煤质与非镜煤质含量相对数值比例的标志,亦即是镜煤化程度的标志。 (3)简化特性系β'反映了煤的特性,焦油产率,炼焦性质,胶层厚度,发热量及碳含量,氢含量,氧含量等,并有充分的证明。 (4)简化特性系β’揭露了近百年来国际间对於煤的特性的秘密,而是国际上有最完善的理论根据的分类指标。 (5)因此,作者建议(a)用VP及β’来作为中国煤工艺技术分类指标(6)用VP,β'与y作为国际煤分类指标,其中 厚度y,根据作者的见解,代表着煤在碳化过程中,凝 化的速度的标志。

Accoustics becomes so important and complicated a problem in modern building practice, that it should be properly considered by every architect today. From the view of its practical aspects, the author makes a general review of several major problems in recent development of architectural acoustics. 1. Criteria of room acoustics: a)Reverberation time, b)Practical aspects of physical acoustics and discussion of the second physical quantity, c)Subjective observations; 2. Sound Systems; 3. Acoustical materials;...

Accoustics becomes so important and complicated a problem in modern building practice, that it should be properly considered by every architect today. From the view of its practical aspects, the author makes a general review of several major problems in recent development of architectural acoustics. 1. Criteria of room acoustics: a)Reverberation time, b)Practical aspects of physical acoustics and discussion of the second physical quantity, c)Subjective observations; 2. Sound Systems; 3. Acoustical materials; 4. Noise control and sound insulation.

建筑声学在现代建筑设计中的地位日趋重要,其复杂性也随之而增加;为今日每一建筑师所值得注意的问题。作者以实用的观点对近年来建筑声学发展中的几个主要问题加以综合的叙述。一、室内音质的评价标准:(1),混响时间,(2)物理声学的意义,和第二物理参量的研究,(3)主观评价;二、扩音系统;三、吸声材料;四、噪声控制和声音隔绝。

In the reference [5], the author has suggested a method of vectorial graphicalcomputation of the undamped forced vibration of the system with one degreeof freedom. In this paper, the method has been extended to the case of thedamped forced vibration. It is known that analytic method is very complicated,troublesome and even not applicable, when the dynamical load P(t), as a func-tion of time t, is of irregular, or sometimes of discontinuous character. But thevectorial graphical method may be used with advantages....

In the reference [5], the author has suggested a method of vectorial graphicalcomputation of the undamped forced vibration of the system with one degreeof freedom. In this paper, the method has been extended to the case of thedamped forced vibration. It is known that analytic method is very complicated,troublesome and even not applicable, when the dynamical load P(t), as a func-tion of time t, is of irregular, or sometimes of discontinuous character. But thevectorial graphical method may be used with advantages. It is also possible to perform an approximate numerical computation follow-ing the same procedure of the vectorial graphical method. Based upon the principle of the vectorial graphical method, author has de-rived an expression of the general solution for calculating the damped forcedvibration of the system with one degree of freedom. To find the dynamical dis-placement function Y(t), it is believed simpler and more convenient to use thegeneral formulas given in this paper than to use the current analytical methods. Illustrations are shown not only for the concrete procedure of the vectorialgraphical computation, but also for the application of the general solution givenhere.

在参考文献[5]中,作者曾提出单自由度系统无阻尼强迫振动的矢量图解计算方法,本文将这方法进一步推广,应用到单自由度系统阻尼强迫振动。如所周知,当作用扰力随时间变化的图形为任意不规则甚且是断续的情况时,解析方法十分繁琐、累赘、甚至不再适用;这时,矢量图解计算方法并不受到限制并显示出它的优越性。 按照矢量图解计算的程序,进行近似的数值解算,也是可行的。 参照矢量图解计算方法的原理,本文导演出单自由度系统阻尼强迫振动一般性解答的一种表示式。当作用扰力函数以多项式形式给定时,用本文给出的表示式求解动力偏移函数,比较用现有一般解析方法要简捷一些。 本文对于矢量图解计算的具体程序列举了算例;对于本文给出的一般性解答的应用,也列举了算例。

 
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