全文获取类型
收费全文 | 250篇 |
免费 | 5篇 |
国内免费 | 3篇 |
专业分类
电工技术 | 6篇 |
综合类 | 7篇 |
化学工业 | 99篇 |
金属工艺 | 58篇 |
机械仪表 | 11篇 |
建筑科学 | 16篇 |
能源动力 | 5篇 |
轻工业 | 3篇 |
水利工程 | 1篇 |
石油天然气 | 4篇 |
无线电 | 8篇 |
一般工业技术 | 13篇 |
冶金工业 | 4篇 |
原子能技术 | 2篇 |
自动化技术 | 21篇 |
出版年
2023年 | 1篇 |
2021年 | 1篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 7篇 |
2016年 | 3篇 |
2015年 | 3篇 |
2014年 | 12篇 |
2013年 | 9篇 |
2012年 | 12篇 |
2011年 | 11篇 |
2010年 | 21篇 |
2009年 | 18篇 |
2008年 | 12篇 |
2007年 | 11篇 |
2006年 | 15篇 |
2005年 | 9篇 |
2004年 | 11篇 |
2003年 | 17篇 |
2002年 | 12篇 |
2001年 | 11篇 |
2000年 | 7篇 |
1999年 | 11篇 |
1998年 | 6篇 |
1997年 | 6篇 |
1996年 | 6篇 |
1995年 | 7篇 |
1994年 | 5篇 |
1993年 | 5篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1988年 | 1篇 |
1985年 | 1篇 |
排序方式: 共有258条查询结果,搜索用时 0 毫秒
1.
An experimental technique together with a numerical model is proposed with which the diffusion coefficient and the sorption isotherm of water in paint can be measured. Inside a closed vessel, paint films are on stainless-steel plates. Water is present as water vapour in the air and in the paint. After blowing dry or wet air through the vessel for some time, the situation moves to a new equilibrium. The relative humidity of the air inside the vessel is measured as a function of time. From fitting the theoretical/numerical model against the experimental values, follow the diffusion coefficient and the sorption isotherm of water in the paint. The results show large scattering. When the independently measured sorption isotherm is used as an input parameter in the model, the fitting procedure gives much smaller scattering for the diffusion coefficient. 相似文献
2.
Amanda Alliband Daniel W. Lenz Laura E. Stevenson Travis Whitmer Rex Cash Dennis Burns Sarah Hall William T.K. Stevenson 《Progress in Organic Coatings》2008
A model has been proposed to explain the failure of the original BMS10-39 epoxy paint on upper vertical surfaces in B-52 fuel tanks. The model involves interaction of the paint with DIEGME, a fuel system ice inhibitor (FSII) in jet fuel, that is distilled from the liquid fuel. In this communication, distillation experiments used to support the model are refined to better match the mass transfer of vapor from fuel in a B-52 fuel tank at close to room temperature. The interaction of these lower temperature distillates with the paint affirms the earlier model. On the basis of these experiments it is proposed that paint failure may be controlled or eliminated by reducing the level of DIEGME in the fuel. Proposed changes in military jet fuel composition are detailed. 相似文献
3.
4.
5.
6.
Boris Raymond Gaël Guennebaud Pascal Barla Romain Pacanowski Xavier Granier 《Computer Graphics Forum》2014,33(2):313-321
This paper introduces a system for the direct editing of highlights produced by anisotropic BRDFs, which we call anisotropic highlights. We first provide a comprehensive analysis of the link between the direction of anisotropy and the shape of highlight curves for arbitrary object surfaces. The gained insights provide the required ingredients to infer BRDF orientations from a prescribed highlight tangent field. This amounts to a non‐linear optimization problem, which is solved at interactive framerates during manipulation. Taking inspiration from sculpting software, we provide tools that give the impression of manipulating highlight curves while actually modifying their tangents. Our solver produces desired highlight shapes for a host of lighting environments and anisotropic BRDFs. 相似文献
7.
介绍了塑料介质喷射(PMB)除漆技术的工艺特点及具有环保性和广泛的适用性,指出了用PMB除漆工艺替代传统除漆工艺的优点和先进性,分析了目前我国航空工业应用该技术存在的问题,并就该技术在我国航空工业中推广提出了建议。 相似文献
8.
An Example-based Procedural System for Element Arrangement 总被引:2,自引:0,他引:2
We present a method for synthesizing two dimensional (2D) element arrangements from an example. The main idea is to combine texture synthesis techniques based‐on a local neighborhood comparison and procedural modeling systems based‐on local growth. Given a user‐specified reference pattern, our system analyzes neigh‐borhood information of each element by constructing connectivity. Our synthesis process starts with a single seed and progressively places elements one by one by searching a reference element which has local features that are the most similar to the target place of the synthesized pattern. To support creative design activities, we introduce three types of interaction for controlling global features of the resulting pattern, namely a spray tool, a flow field tool, and a boundary tool. We also introduce a global optimization process that helps to avoid local error concentrations. We illustrate the feasibility of our method by creating several types of 2D patterns. 相似文献
9.
Sound is an integral part of most movies and videos. In many situations, viewers of a video are unable to hear the sound track, for example, when watching it in a fast forward mode, viewing it by hearing‐impaired viewers or when the plot is given as a storyboard. In this paper, we present an automated visualization solution to such problems. The system first detects the common components (such as music, speech, rain, explosions, and so on) from a sound track, then maps them to a collection of programmable visual metaphors, and generates a composite visualization. This form of sound visualization, which is referred to as SoundRiver, can be also used to augment various forms of video abstraction and annotated key frames and to enhance graphical user interfaces for video handling software. The SoundRiver conveys more semantic information to the viewer than traditional graphical representations of sound illustration, such as phonoautographs, spectrograms or artistic audiovisual animations. 相似文献
10.
论文针对垂直类B2B电子商务特点,面向涂料化工行业,采用结构化设计方法及业务流程再造方法进行规划设计,为涂料化工产业链的企业搭建一个专业的信息化平台。平台实现了专业资讯提供、网上供需信息匹配、在线询价和报价、建立企业商铺等电子商务交易服务功能,给企业带来了实际经济效益,提升常州新型涂料产业基地的整体竞争力。 相似文献