最新刊期
      期 0 ， 2020
      • ZHAO Ge
        Issue 3, Pages: 1-3(2003) DOI: 10.19455/j.mcgy.2003.03.001
        摘要：The wood-based panel industry in China has made significant advances in recent years. However, the wood industry has also been plagued by many problems. Some of the problems still to be solved are shortages of wood resources, lack of advanced equipment and techniques in many wood processing plants, poor quality wood products, and ineffective administration. Both the advances and the problems are reviewed, and finally, some solutions to the problems are proposed.   
          
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        发布时间：2021-02-08
      • FAN Cheng-mou
        Issue 3, Pages: 4-6(2003) DOI: 10.19455/j.mcgy.2003.03.002
        摘要：Having reviewed the achievements in histo ry in China and progress in the world in the field of wooden structure buildings, pointed out the side effect of the restrictions on using wooden structure in building constructions for more than 20 years in China, the author suggests to pay more attention to the research and development on timber structures for buildings and to establish research and training centers for on timber structure technologies.   
        关键词：Wooden structures;Buildings;Composites   
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        发布时间：2021-02-08
      • FEI Beng-hua,ZHANG Dong-Sheng
        Issue 3, Pages: 7-9(2003) DOI: 10.19455/j.mcgy.2003.03.003
        摘要：Wood cracks in an irregular path due to its anisotropic nature. This property also leads to the non-linear distribution of the crack in the two dimensions. The crack and stress-strain of Chinese White Poplar （Populus tomentosa） was studied by the box counting method. The results showed that the cracks were obvious fractal and that the value of dimension D was determined to be betw een 1.2 ～ 1.5 by studying the crack propagation in the two dimensions. By comparing the crack propagation over a period of time, we found that the value of D increased as the crack increased. The stress field of the crack revealed the fractal property and the value of D was found to be smaller at the tip of the cra ck and increased as the distance from the tip of the crack increased.   
        关键词：wood;Crack propagation;Fractal;Fracture   
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        发布时间：2021-02-08
      • ZHOU Yu-cheng,CHENG Fang,LI Xiao-qun
        Issue 3, Pages: 10-12(2003) DOI: 10.19455/j.mcgy.2003.03.004
        摘要：This paper discusses the problem of nonli near robust tracing systems containing uncertain diathesis.lt is abstracted from Computer Integrated Manufacturing Systems（CIMS） in the wood industry where unknown parameters from a compact set Ω are time-varying. Furthermore, a robust self-tuning controller tracking problem is given when unknown parameters appear both linear and nonlinear.  
        关键词：Lyapunov function;Robust tracking;Nonlinear uncertain system;controller   
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        发布时间：2021-02-08
      • LIU Zhi-kun,ZHOU Guo-wei
        Issue 3, Pages: 13-15(2003) DOI: 10.19455/j.mcgy.2003.03.005
        摘要：Bamboo （phyllostachys pubesens）shows excellent softening, bending and styling properties when placed under high moisture and heat conditions. Curved glue-laminated bamboo was made for this study based on the curving and gluing technology. Results showed that this product has high strength and rigidity. Developing curved glue-laminated bamboo is one of the effective ways to make full use of bamboo as a resource and increases both the variety and the added value of bamboo products.  
        关键词：Moso Bamboo;Bamboo processing;Curved glue-laminated bamboo   
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        发布时间：2021-02-08
      • DENG Bei-jie,MA Tao,SHEN Li-juan
        Issue 3, Pages: 16-18(2003) DOI: 10.19455/j.mcgy.2003.03.006
        摘要：Furniture, a practical work of art, should meet the demands of both function and aesthetic wishes. The foot-style for furniture is the key part of making up the beauty of the furniture. In this paper, the authors discussed design methods for establishing some standard design rules. The foot-style for solid wood furniture was divided into four types and the molding methods including geometric figure, imitation, and follow suit, were also presented.  
        关键词：furniture;Foot-style;design   
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        发布时间：2021-02-08
      • ZHANG Zhong-guang
        Issue 3, Pages: 19-22(2003) DOI: 10.19455/j.mcgy.2003.03.007
        摘要：Applying the theory of cybernetics, regar ding a wood drier as a system, provided conditions for the system as an input, an environment parameter of the drier as an output, the comparable performance indexes of the drier can be obtained. This paper analyzed the thermal insulation, airtight and ventilating capability of wood driers from the view of engineering cybernetic.  
        关键词：Cybernetics;System;Input;Output;Wood drier;Thermal insulation;Airtight property;Ventilating capability   
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        发布时间：2021-02-08
      • SHEN Feng-ming,FENG De-jun,HUANG He-run
        Issue 3, Pages: 23-25(2003) DOI: 10.19455/j.mcgy.2003.03.008
        摘要：This article discusses the establishment of an expert system for wood species selection. The structure of the system emphasizes an object-oriented program dependent on a knowledge base and reasoning. The author concludes by describing the practical significance of the system.  
        关键词：Expert system;wood;Consultation;Knowledge rep resentation;Objected-oriented programming   
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        发布时间：2021-02-08
      • ZENG Qi-jun,ZENG Fan-jun,PENG Gui-sheng
        Issue 3, Pages: 26-28(2003) DOI: 10.19455/j.mcgy.2003.03.009
        摘要：The hydraulic system design for a multi-layer press unit for particleboard（PB） and medium density fiberboard（MDF） was discussed in this article. The main parameters of the unit, such as the diameters of the hydro-cylinders and the total flux of the pumps, were deduced and calculated. The reasons for choosing the proper valves to meet the system demand were also explained. In the end, an example of hydraulic system design for a multi-layer press unit was offered.  
        关键词：Hydraulic system;Multi-layer press;Flux;Valve   
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        发布时间：2021-02-08
      • LU Ze-guang,WU Zhi-hui,SUN You-fu
        Issue 3, Pages: 29-30(2003) DOI: 10.19455/j.mcgy.2003.03.010
        摘要：The authors examined possible methods to increase the yield rate of sliced veneer from various processing options such as: log storage, log sawing, lumber steaming, lumber slicing, and veneer cutting. A number of other important factors were analyzed that also affect the yield rate of sliced veneer. These included the method of sawing and lumber packing, steaming temperature, knife cutting angle and veneer thickness. Also, methods for protecting logs from discoloration and decay, especially in the area of mold and blue stain, were suggested.  
        关键词：sliced veneer;Yield rate of veneer   
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        发布时间：2021-02-08
      • CHEN Xiong-wei
        Issue 3, Pages: 31-33(2003) DOI: 10.19455/j.mcgy.2003.03.011
        摘要：Through a study tour on machinery manufac ture for thin high density fiberboard （THDF） equipment lines in five European coun tries, the current status and level of machinery manufacturing for MDF/THDF in Europe are introduced.   
        关键词：Thin high density fiberboard （THDF）;Machinery;Investigation   
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        发布时间：2021-02-08
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