全文获取类型
收费全文 | 263篇 |
免费 | 14篇 |
专业分类
电工技术 | 2篇 |
化学工业 | 69篇 |
金属工艺 | 4篇 |
机械仪表 | 8篇 |
建筑科学 | 1篇 |
矿业工程 | 1篇 |
能源动力 | 3篇 |
轻工业 | 4篇 |
水利工程 | 1篇 |
无线电 | 53篇 |
一般工业技术 | 54篇 |
冶金工业 | 10篇 |
原子能技术 | 2篇 |
自动化技术 | 65篇 |
出版年
2022年 | 6篇 |
2021年 | 6篇 |
2020年 | 5篇 |
2019年 | 7篇 |
2018年 | 6篇 |
2017年 | 5篇 |
2016年 | 8篇 |
2015年 | 3篇 |
2014年 | 12篇 |
2013年 | 18篇 |
2012年 | 21篇 |
2011年 | 30篇 |
2010年 | 15篇 |
2009年 | 9篇 |
2008年 | 13篇 |
2007年 | 15篇 |
2006年 | 8篇 |
2005年 | 13篇 |
2004年 | 9篇 |
2003年 | 6篇 |
2002年 | 5篇 |
2001年 | 2篇 |
2000年 | 1篇 |
1999年 | 3篇 |
1998年 | 1篇 |
1997年 | 4篇 |
1996年 | 2篇 |
1995年 | 3篇 |
1994年 | 1篇 |
1993年 | 4篇 |
1992年 | 2篇 |
1991年 | 1篇 |
1990年 | 1篇 |
1989年 | 6篇 |
1988年 | 1篇 |
1987年 | 3篇 |
1986年 | 2篇 |
1984年 | 1篇 |
1983年 | 1篇 |
1982年 | 4篇 |
1980年 | 2篇 |
1978年 | 4篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1971年 | 1篇 |
1969年 | 1篇 |
1967年 | 3篇 |
排序方式: 共有277条查询结果,搜索用时 15 毫秒
141.
142.
Siva Pratap Reddy Mallem Im Ki-Sik Lee Jung-Hee Caulmione Raphael Cristoloveanu Sorin 《Nano Research》2019,12(4):809-814
Nano Research - Using capacitance, conductance and noise measurements, we investigate the trapping behavior at the surface and in the core of triangular-shaped one-dimensional (1D) array of GaN... 相似文献
143.
Parallelization of operations is of utmost importance for efficient implementation of Public Key Cryptography algorithms.
Starting with a classification of parallelization methods at different abstraction levels of public key algorithms, we propose
a novel memory architecture for elliptic curve implementations with multiple modular multiplier units. This architecture is
well-suited for different point addition and doubling algorithms over to be implemented on FPGAs. It allows the execution time to scale with the number of modular multipliers and exhibits nearly
no overhead compared to the mere runtime of the multipliers. The advantages of this distributed memory architecture are demonstrated
by means of two different point addition and doubling algorithms.
相似文献
Sorin A. HussEmail: |
144.
145.
Bower F.A. Ozev S. Sorin D.J. 《Dependable and Secure Computing, IEEE Transactions on》2005,2(4):297-310
To achieve high reliability despite hard faults that occur during operation and to achieve high yield despite defects introduced at fabrication, a microprocessor must be able to tolerate hard faults. In this paper, we present a framework for autonomic self-repair of the array structures in microprocessors (e.g., reorder buffer, instruction window, etc.). The framework consists of three aspects: 1) detecting/diagnosing the fault, 2) recovering from the resultant error, and 3) mapping out the faulty portion of the array. For each aspect, we present design options. Based on this framework, we develop two particular schemes for self-repairing array structures (SRAS). Simulation results show that one of our SRAS schemes adds some performance overhead in the fault-free case, but that both of them mask hard faults 1) with less hardware overhead cost than higher-level redundancy (e.g., IBM mainframes) and 2) without the per-error performance penalty of existing low-cost techniques that combine error detection with pipeline flushes for backward error recovery (BER). When hard faults are present in arrays, due to operational faults or fabrication defects, SRAS schemes outperform BER due to not having to frequently flush the pipeline. 相似文献
146.
Numerous studies have identified links among culture, user preferences, and Web site usability. Most of these studies were reports of findings from a behavioral perspective in explaining how cultural factors affect processes of Web-related content design and use. Based on the research of Vygotsky and Nisbett, the authors propose a broader model, referred to as "cultural cognition theory," by which Web design, like other types of information production, is seen as being shaped by cultural cognitive processes that impact the designers' cognitive style. This study explores issues related to Web designers' cultural cognitive styles and their impact on user responses. The results of an online experiment that exposed American 1 and Chinese users to sites created by both Chinese and American designers indicate that users perform information-seeking tasks faster when using Web content created by designers from their own cultures. 相似文献
147.
Tucker R.S. Baney D.M. Sorin W.V. Flory C.A. 《IEEE journal of selected topics in quantum electronics》2002,8(1):88-97
In this paper, we examine thermal noise and radiation-pressure effects in MEMS tunable Fabry-Perot etalons. We show that thermal noise causes a jitter in the center wavelength in very high finesse etalons. In turn, the jitter causes an effective increase in the time-averaged filter bandwidth. Radiation pressure is of little consequence in conventional Fabry-Perot etalons, but it can give rise to nonlinearities and hysteresis in the tuning response of high-finesse MEMS filters. We develop models of noise and optical nonlinearities and compare the models with a series of measurements on commercial tunable high-finesse MEMS Fabry-Perot etalons 相似文献
148.
Sorin D.J. Plakal M. Condon A.E. Hill M.D. Martin M.M.K. Wood D.A. 《Parallel and Distributed Systems, IEEE Transactions on》2002,13(6):556-578
We develop a specification methodology that documents and specifies a cache coherence protocol in eight tables: the states, events, actions, and transitions of the cache and memory controllers. We then use this methodology to specify a detailed, modern three-state broadcast snooping protocol with an unordered data network and an ordered address network that allows arbitrary skew. We also present a detailed specification of a new protocol called multicast snooping (Bilir et al., 1999) and, in doing so, we better illustrate the utility of the table-based specification methodology. Finally, we demonstrate a technique for verification of the multicast snooping protocol, through the sketch of a manual proof that the specification satisfies a sequentially consistent memory model 相似文献
149.
Single-mode fibre recirculating delay lines have been made on a single continuous loop of fibre with the use of fibre directional couplers. These devices have been demonstrated as bandpass filters and as notch filters at centre frequencies from 0.5 MHz to 1.3 GHz with a notch depth of over 45 dB. 相似文献
150.
Solid-state NMR provides unique possibilities to study insoluble or noncrystalline molecules at the atomic level. High-resolution conditions can be established by employing magic-angle spinning at ultrahigh magnetic fields. We discuss NMR methods that make use of these experimental improvements and allow for the study of multiply or uniformly [(13)C,(15)N]-labeled polypeptides and proteins. Recent biophysical applications are reviewed. 相似文献