最新刊期
      卷 15 ， 期 4 ， 1993

      • A REVIEW AND ANALYSIS OF FAILURE CRITERIA FOR ASEISMIC STRUCTURES

        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.001
        摘要：This paper Extensively discusses the current failure criteria for aseismic structures and points out the drawback. A method how to thoroughly study the failure criteria is presented.  
          
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      • A NEW METHOD FOR AMELIORATING INDOOR THERMAL ENVIRONMENT BY DEHUMIDIFYING

        Chen Qigao
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.002
        摘要：The climate in the region of the Yangtze River is sultry in summer and wet and cold in winter. The conventional building measures are shading in summer and insulating in winter,which have heen gotten some effects. Becasue the sultry,wet and cold sensation still affect, the indoor thermal environment can not get an ideal improvement. This paper shows that the new method by dehumidifying is the most effective and the most economic.  
          
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      • Jiang Yong
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.003
        摘要：This paper presents the style and features of Yinchuan with a long history and culture,and analyses the relations between protection of the city and the modernization of the city.  
          
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      • Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.004
        摘要：According to the daily change law from curves for percentage insolation,this paper presents a new formula of the average insolation in the zones where the insolation is more than 70%. By means of the hourly observing data during two years for solar direct ratiation, cloudage and sunshine condition in seven zones different lighting climate,considering the vaper pressure and the altitude present the function of percentage insolation and the probability of four sky brightness classification,this formula has a certain precision to be proved by observation.  
          
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      • AN EXTENDED TRANSFER MATRIX AND BOUNDARY ELEMENT METHOD

        Zhang Shide
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.005
        摘要：A combination of extended transfer matrix and boundary element method is proposed for solving two dimentional statics problems of complicated nonhomogeneous structure. It is explained with the theory and the example. The method can get greater numerical accuray and shorten computation time in small amount of computer storage without getting involved with large matrices.  
          
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      • CONSTRUCTION OF OLD MOUNTAIN CITIES

        Yu Zhuoqun
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.006
        摘要：During the citified course at present for construction of old mountain cities is very important. This paper has analyzed the following problems: the contradiction for construction of cities, style of mountain cities, reconstruction of city construction and reflecting the features of our age from cities.  
          
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      • A METHOD FOR COMPUTATION OF AN EQUIVELENT DIAMETER OF STEP BEAM

        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.007
        摘要：This paper presents a new approximate method for computation of an equivalent diameter of step beam. The comparison between the approximate and exact results shows that the method of this paper is suitable.  
          
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      • Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.008
          
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      • Li Shirong
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.009
        摘要：This paper discusses the optimum method of overall construction schedule in the view of systematization and analyszes the factors concerned with overall schedule. It provides a mathematical model of optimization the goal of best general economical benefit. A calculation programme for this model is drawn up and the operating procedures is told. This method overcomes the limitation of current optimum method,and provides construction mnagers a scientific tool in optimizing and adjusting overall construction schedule.  
          
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      • THE ANALYSIS RESEARCH OF VIBRATION MODEL FOR THE C6132 TYPE LATHE

        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.010
        摘要：The test and analysis results of model for the C6132 type lathe structure are introduced in this paper. Through recognizing the mode parameters and mode of vibration, the pernicious models are looked upon by the respond test analysis of random driver. The paper finally analysies the condition of the different order model frequencies in the vibration frequency spectrum for the tailstock and tool carrier during the different rotational speed.  
          
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      • Gai Zengji
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.011
          
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      • Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.012
          
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      • A SUFFICIENT AND NECESSARY CONDITION OF CONTINUITY OF THE LIMIT FUNCTION

        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.013
          
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      • THE OPTIMALITY CONDITION OF NONLINEAR PROGRAMMING IN BANACH SPACE

        Wang Kairong
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.014
          
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      • Yong Jingrong
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.015
        摘要：This paper introduces pressur-grouted little piles and analyses mainly a serious engineering accident of retaining wall built on a slip body in Sichuan. That is stabilized by the aid of pressur-grouted little pile and a good result is obtained.  
          
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      • Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.016
        摘要：Factors of affecting coal gasification mainly are the physical and chemical properties of coal gasified, the operation conditions of gasification process and the types of gasifiers etc. According to coal selection practice for Nanchuan town gas engineering, this paper describes the industrial test on gasification by mixed firing with Xishui coal and Nanchuan coal. The results of the test show that it is complete feasible to gasify by mixed firing at the ratio of Xishui cool the Nanchuan coal 6: 4.  
          
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      • STANDARD AND INDEX OF HOTEL

        Luo Pei
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.017
        摘要：This paper introduces synthetically that the grade standard and relative indexes of hotel architecture formulation after 1978 in our country. As compared with the standard of hotel design of foreign country and measuring the practices of hotel building of late years in our country,the paper discusses the suitability of standard and indexes hotel design and consummates them further still for our country.  
          
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      • A SUFFICIENT CONDITION OF TWOFOLD MAGIC SQUARE

        Zhang Changcai
        Vol. 15, Issue 4, (1993) DOI: 10.11835/j.issn.1674-4764.1993.04.019
        摘要：This paper uses n nature numbers from 1 to n to form a numerical table of twofold maoic square' s necessary condition. It also proves that x>n(n-1) and the numerical table is the sufficient condition of the basic solution.  
          
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