全文获取类型
收费全文 | 69篇 |
免费 | 7篇 |
专业分类
化学工业 | 11篇 |
建筑科学 | 4篇 |
能源动力 | 1篇 |
轻工业 | 2篇 |
水利工程 | 1篇 |
无线电 | 4篇 |
一般工业技术 | 7篇 |
冶金工业 | 28篇 |
自动化技术 | 18篇 |
出版年
2022年 | 1篇 |
2021年 | 2篇 |
2020年 | 2篇 |
2019年 | 4篇 |
2018年 | 6篇 |
2017年 | 2篇 |
2016年 | 2篇 |
2015年 | 2篇 |
2014年 | 1篇 |
2013年 | 5篇 |
2012年 | 3篇 |
2011年 | 3篇 |
2010年 | 2篇 |
2009年 | 6篇 |
2008年 | 3篇 |
2007年 | 3篇 |
2006年 | 6篇 |
2004年 | 2篇 |
2003年 | 2篇 |
2002年 | 1篇 |
2001年 | 1篇 |
2000年 | 1篇 |
1998年 | 2篇 |
1997年 | 1篇 |
1995年 | 1篇 |
1993年 | 2篇 |
1989年 | 2篇 |
1987年 | 2篇 |
1985年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1977年 | 2篇 |
1972年 | 1篇 |
排序方式: 共有76条查询结果,搜索用时 15 毫秒
41.
Recent research has suggested strong relations between characteristic patterns of appraisal along emotionally relevant dimensions and the experience of specific emotions. However, this work has relied primarily upon ratings of remembered or imagined past events associated with the experience of relatively pure emotions. The present investigation is an attempt to examine cognitive appraisals and emotions during an emotional event in which subjects experience complex emotional blends. Subjects described both their cognitive appraisals and their emotional states just before taking a college midterm examination and, again, immediately after receiving their grades on the exam. Analysis of the ratings revealed that at both times the majority of subjects who felt emotion experienced complex blends of two or more emotions. Correlation and regression analyses indicated that even in the context of these blends, patterns of appraisal, highly similar to those discovered in our earlier research on remembered emotions (Smith & Ellsworth, 1985), characterized the experience of emotions as they were actually felt. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
42.
Yi-Ping Phoebe?ChenEmail author Robert M.?Colomb 《Knowledge and Information Systems》2003,5(3):288-314
One of the most important advantages of database systems is that the underlying mathematics is rich enough to specify very complex operations with a small number of statements in the database language. This research covers an aspect of biological informatics that is the marriage of information technology and biology, involving the study of real-world phenomena using virtual plants derived from L-systems simulation. L-systems were introduced by Aristid Lindenmayer as a mathematical model of multicellular organisms. Not much consideration has been given to the problem of persistent storage for these simulations. Current procedures for querying data generated by L-systems for scientific experiments, simulations and measurements are also inadequate. To address these problems the research in this paper presents a generic process for data-modeling tools (L-DBM) between L-systems and database systems. This paper shows how L-system productions can be generically and automatically represented in database schemas and how a database can be populated from the L-system strings. This paper further describes the idea of pre-computing recursive structures in the data into derived attributes using compiler generation. A method to allow a correspondence between biologists' terms and compiler-generated terms in a biologist computing environment is supplied. Once the L-DBM gets any specific L-systems productions and its declarations, it can generate the specific schema for both simple correspondence terminology and also complex recursive structure data attributes and relationships. 相似文献
43.
This paper aims to show that by using low level feature extraction, motion and object identifying and tracking methods, features can be extracted and indexed for efficient and effective retrieval for video; such as an awards ceremony video. Video scene/shot analysis and key frame extraction are used as a foundation to identify objects in video and be able to find spatial relationships within the video. The compounding of low level features such as colour, texture and abstract object identification lead into higher level real object identification and tracking and scene detection. The main focus is on using a video style that is different to the heavily used sports and news genres. Using different video styles can open the door to creating methods that could encompass all video types instead of specialized methods for each specific style of video. 相似文献
44.
Krumm John Anderson Ken Lea Rodger Blackstock Michael Spasojevic Mirjana Ito Mizuko Van House Nancy Koskinen Ilpo Kato Fumitoshi Back Maribeth Inagaki Masatomi Horikiri Kazunori Lahlou Saadi Ballagas Rafael Huang Jeffrey Lertsithichai Surapong Elliott Ame Mainwaring Scott D. Woodruff Allison Sengers Phoebe Riisgaard Hansen Thomas Bardram Jakob E. Korhonen Ilkka 《Pervasive Computing, IEEE》2007,6(2):109-112
This article presents summaries of five of the UbiComp 2006 Workshops: System Support for Ubiquitous Computing, Pervasive Image Capture and Sharing, Usable Ubiquitous Computing in Next-Generation Conference Rooms, Nurturing Technologies in the Domestic Environment, and UbiHealth. The other summaries appeared in the January--March 2007 issue. 相似文献
45.
Chaudhary Chandramani Goyal Poonam Tuli Siddhant Banthia Shuchita Goyal Navneet Chen Yi-Ping Phoebe 《Multimedia Tools and Applications》2019,78(13):17623-17652
Multimedia Tools and Applications - With the enormous growth in the number of images on the web, image clustering has become an essential part of any image retrieval system. Since web images are... 相似文献
46.
Improved accessibility of porous carbon electrodes with surfactant ionic liquids for supercapacitors
Xu Ningjin Klein Jeffrey M. Huang Phoebe Alwusaydi Huda A. Mann Elizabeth K. Gurkan Burcu E. 《Journal of Applied Electrochemistry》2019,49(2):151-162
Journal of Applied Electrochemistry - Ionic liquids (ILs) are promising electrolytes for supercapacitors due to their wide electrochemical window. However, most ILs are viscous in nature and... 相似文献
47.
In this invited feature article, the invention of pressurized gyration in 2013 and its subsequent development into sister processes such as pressurized melt gyration, infusion gyration, and pressure‐coupled infusion gyration is elucidated. The fundamentals of these processes are discussed, elucidating how these novel methods can be used to facilitate mass production of polymeric fibers and other morphologies. The effects of the main system parameters: rotational speed and gas pressure, are discussed along with the influence of solution parameters such as viscosity and polymer chain entanglement. The effect of flow of material into the gyrator in infused gyration is also illustrated. Examples of many polymers that have been subjected to these processes are discussed and the applications of resulting products are illustrated under several different research themes such as, tissue engineering, drug delivery, diagnostics, hydrogels, filtration, and wound healing. 相似文献
48.
Adaptations of Skeletal Muscle Mitochondria to Obesity,Exercise, and Polyunsaturated Fatty Acids 下载免费PDF全文
Mitochondria intricately modulate their energy production through the control of mitochondrial adaptation (mitochondrial biogenesis, fusion, and/or fission) to meet energy demands. Nutrient overload may result in dysregulated mitochondrial biogenesis, morphology toward mitochondrial fragmentation, and oxidative stress in the skeletal muscle. In addition, physical activity and diet components influence mitochondrial function. Exercise may stimulate mitochondrial biogenesis and promote mitochondrial fusion/fission in the skeletal muscle. Moreover, some dietary fatty acids, such as n‐3 polyunsaturated fatty acids and conjugated linoleic acid, have been identified to positively regulate mitochondrial adaptation in the skeletal muscle. This review discusses the association of mitochondrial impairments and obesity, and presents an overview of various mechanisms of which exercise training and mitochondrial nutrients promote mitochondrial function in the skeletal muscle. 相似文献
49.
Jesmin Nahar Tasadduq Imam Kevin S. Tickle Yi-Ping Phoebe Chen 《Expert systems with applications》2013,40(1):96-104
This paper investigates a number of computational intelligence techniques in the detection of heart disease. Particularly, comparison of six well known classifiers for the well used Cleveland data is performed. Further, this paper highlights the potential of an expert judgment based (i.e., medical knowledge driven) feature selection process (termed as MFS), and compare against the generally employed computational intelligence based feature selection mechanism. Also, this article recognizes that the publicly available Cleveland data becomes imbalanced when considering binary classification. Performance of classifiers, and also the potential of MFS are investigated considering this imbalanced data issue. The experimental results demonstrate that the use of MFS noticeably improved the performance, especially in terms of accuracy, for most of the classifiers considered and for majority of the datasets (generated by converting the Cleveland dataset for binary classification). MFS combined with the computerized feature selection process (CFS) has also been investigated and showed encouraging results particularly for NaiveBayes, IBK and SMO. In summary, the medical knowledge based feature selection method has shown promise for use in heart disease diagnostics. 相似文献
50.
This study assessed associations between house characteristics and mold and musty odor, using data from three consecutive (2005, 2010, and 2015) New Zealand House Condition Surveys, involving a total of 1616 timber-framed houses. Mold, musty odor, and house characteristics were assessed by independent building inspectors. We used multivariate logistic regression analyses mutually adjusted for other house characteristics for each survey separately. Positive and independent associations were found with tenure, ventilation, insulation, and envelope condition for both mold in living and bedrooms and musty odor. In particular, we found significant dose-response associations with envelope condition, ventilation, and insulation. Odds of mold increased 2.4–15.9 times (across surveys) in houses with the worst building envelope condition (BEC; p < 0.05–0.001 for trend); optimal ventilation reduced the risk of mold by 60% and the risk of musty odor by 70%–90% (p < 0.01 for trend). Other factors associated with mold and musty odor included: tenure, with an approximate doubling of odds of mold across surveys; and insulation with consistent dose-response patterns in all outcomes and surveys tested (p < 0.05 for trend in two surveys with mold and one survey for odor). In conclusion, this study showed the importance of BEC, ventilation, and insulation to avoiding harmful damp-related exposures. 相似文献