首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   1092篇
  免费   24篇
  国内免费   9篇
电工技术   2篇
综合类   33篇
化学工业   119篇
金属工艺   4篇
机械仪表   14篇
建筑科学   102篇
矿业工程   1篇
能源动力   1篇
轻工业   387篇
石油天然气   2篇
无线电   3篇
一般工业技术   354篇
冶金工业   5篇
自动化技术   98篇
  2024年   14篇
  2023年   25篇
  2022年   26篇
  2021年   46篇
  2020年   45篇
  2019年   40篇
  2018年   39篇
  2017年   42篇
  2016年   24篇
  2015年   12篇
  2014年   118篇
  2013年   32篇
  2012年   77篇
  2011年   113篇
  2010年   106篇
  2009年   86篇
  2008年   36篇
  2007年   59篇
  2006年   32篇
  2005年   33篇
  2004年   21篇
  2003年   16篇
  2002年   13篇
  2001年   14篇
  2000年   14篇
  1999年   10篇
  1998年   9篇
  1997年   7篇
  1996年   1篇
  1995年   4篇
  1994年   1篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1989年   1篇
  1988年   1篇
  1987年   2篇
  1986年   1篇
  1985年   2篇
排序方式: 共有1125条查询结果,搜索用时 15 毫秒
111.
新中式家具造型设计影响因素分析   总被引:1,自引:0,他引:1  
以新中式家具造型为研究对象,分析了影响家具造型设计的主要因素,并剖析其与家具造型之间的关系.提出在新中式家具造型设计中只有根据时代发展了解家具自身功能、材料、技术因素,满足使用者心理生理需求,遵循家具与环境和谐统一原则,才能设计出既有时代感,又具典型传统家具造型特征的新中式家具.  相似文献   
112.
板木家具是家具市场新兴的品类,至今有关它的定义还没有一个权威的界定,笔者综合高校与企业相关专家的建议,并参照《木家具通用技术条件》规定,探讨其概念,并对其在长沙市的销售情况,存在的问题,以及发展趋势进行分析。希望能为企业以及消费者提供一些理论依据。  相似文献   
113.
福建闽中民居作为中国传统民居的分支,除拥有绝妙的建筑装饰外,其室内亦蕴藏着深厚的传统装饰艺术文化.本文以福建闽中民居彩映庚为例,通过对彩映庚的过厅、天井及正厅的装饰题材、寓意、室内陈设及家具的装饰材料等方面进行系统的剖析以形成对福建闽中民居室内装饰艺术的初步了解.  相似文献   
114.
实木家具以其诸多优点越来越受到广大消费者的青睐,但市场却鱼龙混杂,产品质量以次充好、掺杂使假等现象屡见不鲜,质量投诉也高居不下,笔者认为消费者在购买实木家具时首先应该搞清实木家具的分类及概念,另外还要掌握一定的选购技巧,这样才能避免买到以次充好、华而不实的家具而蒙受损失.  相似文献   
115.
以建筑、家具装饰为特色的东阳传统木作艺术,附载了文化、宗教、道德等思想内涵,是当时儒家文化追求以及程朱理学思想的反映.自宋后至明清,东阳木雕已发展到繁荣鼎盛时期,被广泛应用于宫殿、寺观、陵墓、宅院等建筑以及各类家具的装饰上.其题材、构图、雕法、工具也已成熟,并形成一套完整的手工艺体系.  相似文献   
116.
Upholstered furniture is often manufactured with polyurethane foam (PUF) containing flame retardants (FRs) to prevent the risk of a fire and/or to meet flammability regulations, however, exposure to certain FRs and other chemicals have been linked to adverse health effects. This study developed a new methodology for evaluating volatile organic compound (VOC) and FR exposures to users of upholstered furniture by simulating use of a chair in a controlled exposure chamber and assessing the health significance of measured chemical exposure. Chairs with different fire-resistant technologies were evaluated for VOC and FR exposures via inhalation, ingestion, and dermal contact exposure routes. Data show that VOC exposure levels are lower than threshold levels defined by the US and global indoor air criteria. Brominated FRs were not detected from the studied chairs. The organophosphate FRs added to PUF were released into the surrounding air (0.4 ng/m3) and as dust (16 ng/m2). Exposure modeling showed that adults are exposed to FRs released from upholstered furniture mostly by dermal contact and children are exposed via dermal and ingestion exposure. Children are most susceptible to FR exposure/dose (2 times higher average daily dose than adults) due to their frequent hand to mouth contact.  相似文献   
117.
Herein, we describe a reduced‐scale test (“Cube” test), measuring the fire performance of specimens including a fire barrier (FB) and a flammable core material, which acts as the main fuel load. The specimen is intended to reproduce a cross‐section of a composite product where heat/mass transfer occurs primarily in a direction perpendicular to the FB. The Cube test procedure and benefits are discussed in this work by adopting residential upholstery furniture as an exemplary study. One flexible polyurethane foam, one polypropylene cover fabric, and 10 commercially available FBs were selected. They were used to compare the fire performance of FBs, measured in terms of peak of heat release rate, in the ASTM E1474‐14 standard test and the newly developed Cube test. Edge effects severely affected the performance of FBs in the ASTM E1474‐14 standard test but not in the Cube test. Furthermore, appropriate test conditions were determined in the Cube test to measure the so‐called “wetting point,” that is, the time and value of heat release rate measured when flammable liquid products were first observed on the bottom of the specimen. The relevance of the “wetting point” in terms of full‐scale fire performance and failure mechanism of FBs is discussed.  相似文献   
118.
About 80% of all fire fatalities in Germany occur because of fires in homes. It has been known for some time that modern materials (synonym for materials consisting mostly of synthetic polymers) tend to burn differently from older materials (synonym for materials consisting mostly of fibrous cellulosic substances) and it has been acknowledged that the amount of combustible plastics in homes has increased significantly over the last decades. To investigate the influence of modern furniture and ventilation conditions of fires in homes, a series of four large‐scale tests in two living rooms (LRs) with adjacent rooms (ARs) was performed by BAM and the Frankfurt fire service. Two LRs, one with older furniture and one with modern furniture, were tested twice each. Each test started with the ignition of a paper cushion on an upholstered chair. The influence of modern materials on the fire development was investigated, as well as the influence of the ventilation on the fire development. In all settings, an upholstered chair was the first burning item. Results of the test series show that fires in rooms with modern furniture develop faster than fires in rooms with older furniture. This is true for temperature development in the rooms as well as for smoke production.  相似文献   
119.
University students spend most of their time in classrooms, mostly in a sitting position. Prolonged sitting on ill-fitted furniture and the resulting bad posture is making students suffer from different musculoskeletal disorders (MSDs). This study evaluates the potential mismatch between furniture dimensions and anthropometric measurements. To determine potential mismatch, 13 anthropometric measurements of 550 students and 11 dimensions of two types of classroom furniture (mounted-desktop and chair-with-table) were measured and then compared. Additionally, chi-square test was performed to compare the relation between anthropometry and relevant furniture dimensions. Results showed that a significant number of mismatches emerged between anthropometric measurements and furniture dimensions. For both types of furniture, seat height was too high and seat depth was too deep. Moreover, for mounted desktop, desk height is almost appropriate for all students whereas for chair and table, it was too high for the males. These circumstances may lead to increase discomfort and increase MSDs problems among all students. It can be concluded that the dimensions of both types of classroom furniture were not appropriate for users according to anthropometric measurements. This analysis recommends the measurements of furniture dimensions based on participants’ anthropometric measurements to avoid or minimise discomfort and MSDs problems.  相似文献   
120.
李光俊  孙德林  邹伟华 《包装工程》2021,42(16):195-201
目的 从绿色家具视角和纸绳家具设计实例出发,探究纸绳家具的设计原则和方法,旨在为实际应用提供一种新的思路.方法 通过对纸绳材料优势的深入分析,结合实例和现阶段绿色家具的设计要求,分析"6R""以人为本"设计原则在纸绳家具设计中的应用,并指导设计实践.结论 "6R"和"以人为本"的设计原则对纸绳家具设计具有指导作用,所设计的纸绳家具不仅能够避免复合纸板家具不耐水、不耐久等不足,也赋予纸家具产品温馨的人文主义气息,达到功能性与艺术性的完美统一.与此同时,在充分了解材料属性的基础上,赋予纸绳家具可回收、再循环和再利用的环保属性,拟满足当代消费者对产品实用性和环保性的双重要求,这对纸材料在家具设计中的进一步拓展具有重要意义.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号