木材的尺寸稳定性处理

尺寸稳定性处理是提高木材应用范围的主要途径之一，处理方法很多，效果各异。本文广泛收集当今在木材尺寸稳定处理方面的研究成果，对各种处理方法作了概括性的阐述，可为从事该方面研究和应用的人员提供理论支持和参考。     

浅谈我国木材行业发展的现状问题及对策

本文回顾了我国木材工业尤其是人造板工业近午来取得的巨大成就，同时指出了存在着行业整体素质不高、企业规模仿小、产品质量和经渗效益差、宏现调控薄弱等问题。针对这些问题及我国的国情、林情，最后提出发展我国木材工业的若干措施。     

日本在无机质复合木材领域的研究进展*

无机质复合木材是近年来木材化学改性领域中研究活跃的主题之一，文中简要叙述了溶胶—凝胶法制备木材—无机质复合材料的基本反应历程，介绍了近年来日本在无机质复合木材研究方面的进展情况。     

影响木材产品质量因素及控制方法的研究

木材产品质量是影响林业企业经济效益最关键的因素之一。本论文从树木生长特性、采伐技术、集材、造材等六种因子对木材产品质量影响进行了分析，并采取科学的方法加以控制，以减少木材损伤，提高木材产品质量。     

金属壳体木材干燥窑热损失分析

本文主要分析了金属壳体木材干燥窑窑体的热损失情况。并与砖混结构窑窑体的热损失进行了对比。着重说明由窑门及边框冷桥产生热损失的严重程度，并指出减小热损失的一些途径。     

我国发展木结构房屋的前景分析

本文简要介绍了国内外木质结构房屋的发展状况。结合实际国情分析了我国发展木结构房屋的优势以及存在的问题 ,认为目前我国发展木结构建筑的市场潜力很大 ,但真正的开发需要一个过程 ,尚有许多问题有待解决。     

促进我国木材防腐产业的跨越式发展

木材防腐（保护）可以延长木材使用寿命、节约木材、保护森林资源,是一项缓解我国木材短缺的有利措施。但我国的木材防腐产业远远落后于世界发达国家和许多发展中国家,建议采取措施促进我国木材防腐产业的跨越式发展,尤其是要提高政府和公众对木材防腐功能的认识,制定符合当代科技发展水平的标准和规范,制定促进木材防腐的法规和政策,建立木材防腐剂的审核、认可、注册制度。     

我国木材干燥设备市场亟待技术规范与正确导向

本文列举了我国木材干燥设备市场中大量技术混乱的事实，有针对性地提出了技术规范的依据，并就如何从技术与体制创新、木材干燥方法、木材树种、干燥设备、干燥工艺、配套系统等方面进行正确引导进行了探讨。     

A wavelet analysis-based approach for damage localization in wood beams

Free vibration testing was conducted to generate the first two mode shapes for damage detection in timbers. A wavelet transform was proposed to postprocess the mode shapes for damage pattern recognition. The wavelet used here was “db3.” The different damage severities, damage locations, and number of damaged areas were simulated by removing mass from intact beams. The results showed that the chosen wavelet db3 is suitable and that the wavelet coefficients are sufficiently sensitive to identify the existence of damage and its location in cases of different damage location, severity, and number. An edge distortion effect was apparent at the two computing edges where the wavelet coefficients were abnormally high. The wavelet coefficients showed dominant spikes around the damage locations and were zero everywhere else except the two computing edges. The dominant spikes coincided well with the damage location.     

Improvement of wood properties by urea-formaldehyde resin and nano-SiO2

In order to improve wood properties of triploid clones of Populus tomentosa, urea-formaldehyde (UF) resin was compounded with nano-SiO₂, coupling agents and flame retardants in different ways to prepare five kinds of modifiers. The poplar wood samples were impregnated with the modifiers and heated to prepare UF-SiO₂-wood composites. The antiswelling efficiency, resistance of water absorption, oxygen index and hardness of the composites were measured. Results show that all of the modifiers reduced water absorption of poplar wood and enhanced flame resistance and hardness. Nano-SiO₂ showed a marked effect in improving the hardness of wood. In addition, all of the modifiers, except UF-C-SiO₂-polymer, improved the dimensional stability of poplar wood. The UF resin and nano-SiO₂ compound improved general properties of poplar wood. __________ Translated from Journal of Beijing Forestry University, 2006, 28(2): 123–128 [译自: 北京林业大学学报]