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171.
In this paper, we articulate the role of movement within a perceptual-motor view of tangible interaction. We argue that the history of human–product interaction design has exhibited an increasing neglect of the intrinsic importance of movement. On one hand, human–product interaction design has shown little appreciation in practice of the centrality of our bodily engagement in the world. This has resulted in technologies that continue to place demands on our cognitive abilities, and deny us the opportunity of building bodily skill. On the other hand, the potential for movement in products to be a meaningful component of our interaction with them has also been ignored. Both of these directions (design for bodily engagement and the expressiveness of product movements) are sketched out, paying particular respect for their potential to impact both interaction aesthetics and usability. We illustrate a number of these ideas with examples.  相似文献   
172.
Robotic smart house to assist people with movement disabilities   总被引:1,自引:0,他引:1  
This paper introduces a new robotic smart house, Intelligent Sweet Home, developed at KAIST in Korea, which is based on several robotic agents and aims at testing advanced concepts for independent living of the elderly and people with disabilities. The work focuses on technical solutions for human-friendly assistance in motion/mobility and advanced human-machine interfaces that provide simple control of all assistive robotic systems and home-installed appliances. The smart house concept includes an intelligent bed, intelligent wheelchair, and robotic hoist for effortless transfer of the user between bed and wheelchair. The design solutions comply with most of the users’ requirements and suggestions collected by a special questionnaire survey of people with disabilities. The smart house responds to the user's commands as well as to the recognized intentions of the user. Various interfaces, based on hand gestures, voice, body movement, and posture, have been studied and tested. The paper describes the overall system structure and explains the design and functionality of some main system components.  相似文献   
173.
In order to study the movement of the long-distance torpedo-like autonomous underwater vehicle (AUV) which is controlled by the dynamic positioning system (DPS), by adopting momentum theorem and the angular momentum theorem, the appropriate movement math model for the long-distance torpedo-like AUV has been built and the thrust of DPS is distributed. Several representative movements of AUV are simulated, such as transferring between two random points and pointing circumrotation movement. The simulation result is analyzed. It shows that DPS including five thrusters can control the AUV movement steadily at low velocity.  相似文献   
174.
变螺距加工中的凸轮轮廓设计   总被引:2,自引:0,他引:2  
在分析各种变螺距的基础上,建立其数学表达式,并对变螺旋线加工中采用的关键零件-凸轮进行设计。  相似文献   
175.
The direction and speed of movement of adult rusty grain beetles in 12 and 24 h at 2.5-27.5°C (standard error was ±0.2°C in all of the experiments) were determined in 100×100×1000 mm3 wheat (14.5±0.2% moisture content) columns with or without 5°C/m temperature gradients. At 5°C or less, adults could not move more than 5 cm in 24 h. At 7°C or less, 98% of adults could not move more than 5 cm in 24 h. Between 5°C and 27.5°C, the beetles preferred warmer areas and increasing temperature caused an increased number of insects to move towards the warmer areas both in vertical and horizontal columns. Insects moved faster in the vertical direction than in the horizontal direction and the maximum absolute speed of the beetles was <0.2 m/d at 7°C, 0.4 m/d at 10°C in the horizontal direction, 1 m/d at 10°C in the vertical direction and more than 1 m/d at 17.5°C or higher. When temperature at the top end of the vertical column was lower than that at the bottom, 98% of adults moved down; when temperature at the top end was higher than that at the bottom, 5% at 10°C, 7% at 15°C, 25% at 20°C, and 30% at 25°C moved up. The speed of the insect movement to the bottom was reduced by an opposing temperature gradient. The results of the factorial experiments showed that the speed and direction of insect movement were affected by temperature, temperature gradient, geotaxis, and the interaction between temperature gradient and geotaxis. Adults were more sensitive to geotaxis than to temperature gradient and the preference of geotaxis decreased with the increase of temperature.  相似文献   
176.
Under one form or another Vocational Guidance has existed down the centuries. Socrates guided Plato; Plato guided Aristotle; Aristotle guided Alexander the Great. However, it was only at the turn of this XX Century that vocational guidance became an organized movement reaching out to youths from every walk of life. Guidance counsellors became duly accredited professionals. What the concepts of vocational guidance were both in France and in the United States of America respectively from the turn of this XX Century is now being presented in the following article. Of special interest is the fact that national and state laws seconded the guidance movement both in France and in the United States. Education benefitted immensely by incorporating educational and vocational guidance into the vast ramification of its schools and institutions. A fuller grasp of the concepts of guidance in French and in the American educational systems helps unravel some of the knotty problems of the Guidance Movement. (PsycINFO Database Record (c) 2010 APA, all rights reserved)  相似文献   
177.
基于动力学模型的飞行员舒适操作域研究   总被引:1,自引:0,他引:1  
依据中国成年男性的人体测量数据和拉格朗日方程建立飞行员上肢操作的动力学模型。利用NASA最大关节力矩计算公式和飞机座舱操纵杆的实际安装尺寸,对驾驶员的操作活动进行模拟仿真。针对具体的操作过程,通过计算上肢各关节的实际受力情况,确定上肢的三维舒适操作域,并与正向运动学结合经验关节舒适活动范围计算的方法进行了比较,结果说明该方法是可行的。该方法可以用于座舱操纵装置布局的工效分析,为飞行员驾驶工效的评估提供了一种新的思路和方法,对座舱布局优化设计有一定的参考价值。  相似文献   
178.
斯堪的纳维亚现代主义设计改革和探索自19世纪下半叶开始,其间历经工艺美术运动时期、新艺术运动时期。20世纪20年代,形成了以功能主义为核心的现代主义设计。随后,经过不断的修正、完善和发展,终于在20世纪40年代发展了其独具特色的柔性功能主义设计,并确立了其在世界设计舞台上的地位和水平。  相似文献   
179.
As a result of opposition, on the grounds of visual impact, to major wind energy installations on land, power companies are increasingly turning to off-shore sites for wind farm development. In most cases, the multiple turbines will be visible from the shore and hinterlands and opposition to the visual intrusion continues. This paper more firmly establishes the parameters of wind turbine visibility and impact at different distances from the viewer, under different lighting and atmospheric conditions and with moving or stationary blades. This is achieved through an on-line survey involving an 18 turbine wind farm at three different distances (4, 8 and 12 km), in five different lighting and weather conditions and in two different movement conditions. Distance and contrast were found to be very good predictors of perceived impact. There was a significant difference in impact between simulations with moving and stationary blades. Responses were also analysed according to local exposure, national exposure, interest level and age.  相似文献   
180.
怀远运动不整合面是华北地台上一个重要的区域性不整合面。在对华北地台怀远运动表现形式与地质特征调研分析的基础上,基于大量的露头、岩心观察和地震资料解释工作,对鄂尔多斯盆地怀远运动不整合面存在的证据、特征及其与储层和油气成藏的关系进行了深入分析,并取得了新认识。研究认为:①鄂尔多斯盆地奥陶系深层存在由怀远运动形成的区域不整合面,并可能发育大型喀斯特岩溶沟谷地貌体系;②该区域不整合面及相关沟谷地貌体系为上覆马家沟组中-下组合(马四段—马一段)沉积提供了古地貌背景,并控制了其沉积格局与有利储集相带展布,同时也控制下伏下奥陶统—寒武系—长城系白云岩化与风化壳储层发育;③该区域不整合面为不同来源天然气的区域性横向运移提供了有利通道,是油气运移的“高速公路”,同时也为油气聚集提供了有利场所,其中不整合面附近的上、下层位有利于天然气的大规模聚集与成藏,可能是继奥陶系顶面风化壳领域后又一勘探新领域,值得重视。目前对盆地内部怀远运动不整合面的认识还比较薄弱,建议加强三维地震勘探部署,以推动鄂尔多斯盆地的地质认识创新和勘探新发现。  相似文献   
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