全文获取类型
收费全文 | 48篇 |
免费 | 3篇 |
专业分类
电工技术 | 2篇 |
化学工业 | 19篇 |
金属工艺 | 1篇 |
机械仪表 | 2篇 |
建筑科学 | 2篇 |
轻工业 | 4篇 |
水利工程 | 3篇 |
一般工业技术 | 5篇 |
冶金工业 | 4篇 |
自动化技术 | 9篇 |
出版年
2022年 | 2篇 |
2019年 | 1篇 |
2018年 | 1篇 |
2017年 | 1篇 |
2016年 | 2篇 |
2013年 | 1篇 |
2012年 | 1篇 |
2011年 | 4篇 |
2010年 | 1篇 |
2009年 | 2篇 |
2008年 | 2篇 |
2006年 | 1篇 |
2002年 | 1篇 |
2000年 | 2篇 |
1999年 | 3篇 |
1998年 | 5篇 |
1997年 | 1篇 |
1995年 | 2篇 |
1989年 | 1篇 |
1985年 | 1篇 |
1984年 | 1篇 |
1976年 | 2篇 |
1974年 | 2篇 |
1947年 | 1篇 |
1933年 | 1篇 |
1931年 | 1篇 |
1930年 | 1篇 |
1929年 | 2篇 |
1927年 | 2篇 |
1926年 | 2篇 |
1925年 | 1篇 |
排序方式: 共有51条查询结果,搜索用时 15 毫秒
11.
12.
13.
14.
15.
R. A. Heindl 《Journal of the American Ceramic Society》1925,8(10):671-676
A procedure is given for determining quantitatively the iron existing as ferrosilicon in artificial corundum. 相似文献
16.
Heindl B Pollwein B Schleutermann S Haller M Finsterer U 《Computer methods and programs in biomedicine》2000,62(1):1-10
Renal dysfunction is a major problem in the management of critically ill patients. Monitoring of renal parameters over time is a prerequisite for detection of any significant deterioration of kidney function. Thus, we developed a knowledge-base for the dynamic monitoring of renal function of critically ill patients. A database with renal parameters of 750 intensive care patients was analyzed for distribution of parameters within predefined intervals of the creatinine clearance. Additionally, a subgroup of 11 patients with (quite) normal renal function over 11 days was selected and the daily variability of renal parameters was analyzed. An interdisciplinary expert team selected a set of nine clinically relevant renal parameters and formulated, on the basis of the data analysis and the parameter set, eight definitions of renal function, which represent four levels of renal performance. These definitions were arranged into an hierarchical structure, considering only clinically relevant changes of renal function. A change from one functional state to another inside of 2 days indicates a relevant alteration of renal function. Monitoring of time courses can additionally be performed by statistical analysis of the daily variability of parameters and comparison with their 'normal' variability. Moreover, rules were established for the plausibility check of results and interpretations of single parameters and parameter sets formulated. 相似文献
17.
18.
A series of twelve sagger bodies having a wide range in properties was prepared from fourteen different clays and grog made, in most instances, from the same clays. Experimental saggers heated to different temperatures were tested for resistance to thermal shock and the values compared with predetermined values assigned to each of the bodies. A chart was prepared which shows the relation between modulus of rupture, modulus of elasticity, linear thermal expansion, and resistance of saggers to thermal shock. 相似文献
19.
20.
Übersicht Für die Bestimmung der Diffusionslänge mit der Surface-Photo-Voltage (SPV)-Methode wurde ein Auswerteverfahren entwickelt, das den Einfluß der Probenstruktur und der effektiven Lichtabsorption auf das Ladungsträgerprofil berücksichtigt. Es wird gezeigt, daß sich mit diesem Verfahren bei hoher Meßgenauigkeit noch Diffusionslängen, die der Waferdicke entsprechen, mit einer Genauigkeit >25% auflösen lassen.
Herrn Prof. Dr. phil. nat. W. Gerlach zum 60. Geburtstag gewidmet 相似文献
The determination of large duffusion lengths in silicon wafers using the SPV-method
Contents A new method for the determination of carrier diffusion length by proper evaluation of the Surface Photo Voltage (SPV)-technique is presented. To obtain better and more specific results, we take into account the carrier profile and the effective absorption of the specimen structure and use a sophisticated and very accurate measurement technique. Diffusion lengths up to the magnitude of the wafer thickness can be determined with an accuracy better than 25%.
Herrn Prof. Dr. phil. nat. W. Gerlach zum 60. Geburtstag gewidmet 相似文献