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排序方式: 共有49条查询结果,搜索用时 34 毫秒
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The photoionization processes of excited hydrogen atoms in plasma environments are investigated using the method of complex coordinate rotation. The standard Debye–Hückel model and modified Debye–Hückel model are adopted to describe the plasma screening effects. The photoionization cross sections of plasma-embedded excited hydrogen atoms varied with different screening lengths are displayed to illustrate the influence of plasma screening. The results of the Debye–Hückel model compared with the modified Debye–Hückel are presented. The shape resonances and Cooper minima due to the plasma screening are observed and discussed. 相似文献
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Jayne Merkel 《Architectural Design》2009,79(2):114-117
Unlike most glamorous new high-rise apartment buildings in downtown Manhattan, this thin, tilted white glass tower provides homes away from home for chic out-of-towners. And what ‘homes’ they are. Upstairs are astounding long-range views; on the lower floors, a series of glass-walled lounges, restaurants, balconies, a garden and even a library with a wood-burning fireplace. And, as Jayne Merkel explains, these sensual pleasures are mixed with intellectual ones. There are art and travel books in every room and guests can enjoy ‘movie nights’ in the screening room. 相似文献
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Grahame Shane 《Architectural Design》2007,77(2):24-35
How are urban actors, such as landscape designers, community groups, developers and local politicians, actively restructuring their environments to meet the challenges of the American city in the new global context? Grahame Shane outlines the approaches to landscape that have been emerging since the mid-20th century and are set to recombine urban assemblages whether they are located in historic city centres, postindustrial waterfronts or suburban sprawl. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
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Letter comments that, about four years ago, Irving S. Cooper, a neurosurgeon in New York City, developed a new type of brain surgery designed to alleviate the tremor and rigidity associated with Parkinson's Disease. As Cooper's work and research progressed, it soon became evident that a significant factor in the selection of appropriate candidates was the patient's psychological and mental condition. Thus it was decided to add a clinical psychologist to the team of professional and rehabilitation people carrying out preoperative evaluation. So far as the letter's author knows, St, Barnabas Hospital is the only setting in this country in which psychologists work so closely with a Department of Neurologic Surgery in both a clinical and research role. The author feels it is significant to report this development which opens up a broad new area for which psychological services are utilized. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Induced seismicity associated with Enhanced Geothermal Systems 总被引:2,自引:0,他引:2
Ernest L. Majer Roy Baria Mitch Stark Stephen Oates Julian Bommer Bill Smith Hiroshi Asanuma 《Geothermics》2007
Enhanced Geothermal Systems (EGS) have the potential to make a significant contribution to the world energy inventory. One controversial issue associated with EGS, however, is the impact of induced seismicity or microseismicity, which has been the cause of delays and threatened cancellation of at least two EGS projects worldwide. Although microseismicity has in fact had few (or no) adverse physical effects on operations or on surrounding communities, there remains public concern over the amount and magnitude of the seismicity associated with current and future EGS operations. The primary objectives of this paper are to present an up-to-date review of what is already known about the seismicity induced during the creation and operation of EGS, and of the gaps in our knowledge that, once addressed, should lead to an improved understanding of the mechanisms generating the events. Several case histories also illustrate a number of technical and public acceptance issues. We conclude that EGS-induced seismicity need not pose a threat to the development of geothermal energy resources if site selection is carried out properly, community issues are handled adequately and operators understand the underlying mechanisms causing the events. Induced seismicity could indeed prove beneficial, in that it can be used to monitor the effectiveness of EGS operations and shed light on geothermal reservoir processes. 相似文献
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Lynn A. Cooper: Distinguished Scientific Award for an Early Career Contribution to Psychology: 1980.
Provides the biography of Lynn A. Cooper and announces that she has received the Distinguished Scientific Award for an Early Career Contribution to Psychology (1980) for her incisive investigations of the nature and individual variation of the internal processes of visual representation, transformation, and comparison by means of which we identify, discriminate, and prepare for external objects and events. A selected bibliography is also provided. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献