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Extensive new high-temperature, high-resolution FTIR emission spectroscopy measurements for the five common isotopomers of GeO are combined with previous diode laser and microwave measurements in combined isotopomer analyses. New Dunham expansion parameters and an accurate analytical potential energy function are determined for the ground X1Sigma+ state. Copyright 1999 Academic Press. 相似文献
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RJ Schaefer 《The Journal of communication》1997,47(4):69-88
This study describes the editing techniques used in four renowned television news documentaries that aired between 1954 and 1982. It is informed by Peirce's theories of signs, and realist and symbolic film theory, as well as some of the understandings common to broadcast journalists. The analysis attempts to bridge subdisciplinary boundaries to advance an accessible vocabulary for discussing journalistic representational strategies. The prevalence of continuity and thematic editing styles, special transitional effects, audio track synchronization, and differing cutting rates was quantitatively analyzed and linked to classic film realism and montage strategies. The quantitative findings and a comparative case study analysis of the structural nuances of each documentary illustrate the variety of representational strategies used by network journalists. These findings are discussed in light of analysts' assertions that televised reports have become increasingly journalist centered. 相似文献
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Hagge J.K. Wagner R.J. 《Proceedings of the IEEE. Institute of Electrical and Electronics Engineers》1992,80(12):1965-1994
Multichip module technology has been shown to offer significant improvements for electronics equipment in the areas of miniaturized size, reduced weight, capability for higher frequency operation, improved thermal performance, and improved reliability. Production applications for multichip modules (MCMs) have grown from high-end computer and aerospace modules to include such diverse products as telecommunications, automotive, and consumer electronics modules. One of the keys to economic success in all applications is the achievement of high manufacturing yields. Yield losses must be kept very low compared with module costs in order to remain economically competitive. Two parameters with a very strong impact on manufacturing yield, known-good components entering assembly and test strategies at various levels of assembly, are discussed. Current industry practice is surveyed and recent progress on MCM infrastructure development is summarized 相似文献
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Sven O Hagge Malte U Hammer Andre Wiese Ulrich Seydel Thomas Gutsmann 《BMC biochemistry》2006,7(1):15-13
Background
The first target of antimicrobial peptides (AMPs) is the bacterial membrane. In the case of Gram-negative bacteria this is the outer membrane (OM), the lipid composition of which is extremely asymmetric: Whereas the inner leaflet is composed of a phospholipid mixture, the outer leaflet is made up solely from lipopolysaccharides (LPSs). LPS, therefore, represents the first target of AMPs. The binding and intercalation of polycationic AMPs is driven by the number and position of negatively charged groups of the LPS. Also, proteins other than cationic AMPs can interact with LPS, e.g. leading eventually to a neutralization of the endotoxic effects of LPS. We compared different biophysical techniques to gain insight into the properties of the electrical surface potentials of lipid monolayers and aggregates composed of LPSs and various phospholipids and their interaction with peptides and proteins. 相似文献16.
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A new function block modeling language based on Petri nets for automatic code generation 总被引:1,自引:0,他引:1
A component based modeling language with the component interfaces derived from the elements of the Petri net theory called CNet is presented in this paper. In contrast to IEC 61499 function blocks that define the flow of events and data separately, CNet models them combined as colored tokens. The event-discrete behavior of CNet components is described by a special class of colored Petri nets with timed arcs and sharpened semantics in order to allow automatic generation of possibly concurrent Java code. In this paper, the state space of CNet components is analyzed and a novel event-discrete "handler-based" execution model that implicitly models an automaton is introduced. 相似文献
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Transonic trailing-edge flow 总被引:1,自引:0,他引:1
Bodonyi RJ; Kluwick A 《The Quarterly Journal of Mechanics and Applied Mathematics》1998,51(2):297-310