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Results 1 - 10
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11,610
Crystallography & NMR system: A new software suite for macromolecular structure determination.
- Acta Crystallogr. D Biol. Crystallogr.
, 1998
"... Abstract A new software suite, called Crystallography & NMR System (CNS), has been developed for macromolecular structure determination by X-ray crystallography or solution nuclear magnetic resonance (NMR) spectroscopy. In contrast to existing structure determination programs the architecture o ..."
Abstract
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Cited by 1411 (6 self)
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of CNS is highly flexible, allowing for extension to other structure determination methods, such as electron microscopy and solid state NMR spectroscopy. CNS has a hierarchical structure: a high-level hypertext markup language (HTML) user interface, task-oriented user input files, module files, a
A Rate-Adaptive MAC Protocol for Multi-Hop Wireless Networks
, 2001
"... Wireless local area networks (W-LANs) have become increasingly popular due to the recent availability of affordable devices that are capable of communicating at high data rates. These high rates are possible, in part, through new modulation schemes that are optimized for the channel conditions bring ..."
Abstract
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Cited by 484 (5 self)
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bringing about a dramatic increase in bandwidth efficiency. Since the choice of which modulation scheme to use depends on the current state of the transmission channel, newer wireless devices often support multiple modulation schemes, and hence multiple data rates, with mechanisms to switch between them
Continuous and discrete wavelet transforms
- SIAM REVIEW
, 1989
"... This paper is an expository survey of results on integral representations and discrete sum expansions of functions in L 2 (R) in terms of coherent states. Two types of coherent states are considered: Weyl–Heisenberg coherent states, which arise from translations and modulations of a single functio ..."
Abstract
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Cited by 281 (29 self)
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This paper is an expository survey of results on integral representations and discrete sum expansions of functions in L 2 (R) in terms of coherent states. Two types of coherent states are considered: Weyl–Heisenberg coherent states, which arise from translations and modulations of a single
Software rejuvenation: Analysis, module and applications
- IN PROCEEDINGS OF IEEE INTL. SYMPOSIUM ON FAULT TOLERANT COMPUTING, FTCS 25
, 1995
"... Software rejuvenation is the concept of gracefully terminating an application and immediately restarting it at a clean internal state. In a client-server type of application where the server is intended to run perpetually for providing a service to its clients, rejuvenating the server process period ..."
Abstract
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Cited by 224 (2 self)
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Software rejuvenation is the concept of gracefully terminating an application and immediately restarting it at a clean internal state. In a client-server type of application where the server is intended to run perpetually for providing a service to its clients, rejuvenating the server process
A Critique of Software Defect Prediction Models
- IEEE TRANSACTIONS ON SOFTWARE ENGINEERING
, 1999
"... Many organizations want to predict the number of defects (faults) in software systems, before they are deployed, to gauge the likely delivered quality and maintenance effort. To help in this numerous software metrics and statistical models have been developed, with a correspondingly large literatur ..."
Abstract
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Cited by 292 (21 self)
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literature. We provide a critical review of this literature and the state-of-the-art. Most of the wide range of prediction models use size and complexity metrics to predict defects. Others are based on testing data, the “quality ” of the development process, or take a multivariate approach. The authors
Earcons and icons: Their structure and common design principles
- in Human Computer Interaction
, 1989
"... In this article we examine earcons, which are audio messages used in the user-computer interface to provide information and feedback to the user about computer entities. (Earcons include messages and functions, as well as states and labels.) We identify some design principles that are common to both ..."
Abstract
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Cited by 278 (0 self)
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In this article we examine earcons, which are audio messages used in the user-computer interface to provide information and feedback to the user about computer entities. (Earcons include messages and functions, as well as states and labels.) We identify some design principles that are common
Adaptive Coded Modulation for Fading Channels
- IEEE TRANS. COMMUN
, 1998
"... We apply coset codes to adaptive modulation in fading channels. Adaptive modulation is a powerful technique to improve the energy efficiency and increase the data rate over a fading channel. Coset codes are a natural choice to use with adaptive modulation since the channel coding and modulation desi ..."
Abstract
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Cited by 204 (11 self)
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to uncoded adaptive MQAM for a simple four-state trellis code, and an effective 3.6-dB coding gain for an eight-state trellis code. More complex trellis codes are shown to achieve higher gains. We also compare the performance of trellis-coded adaptive MQAM to that of coded modulation with built-in time
Animated agents for procedural training in virtual reality: Perception, cognition, and motor control
- APPLIED ARTIFICIAL INTELLIGENCE
, 1999
"... This paper describes Steve, an animated agent that helps students learn to perform physical, procedural tasks. The student and Steve cohabit a three-dimensional, simulated mock-up of the student's work environment. Steve can demonstrate how to perform tasks and can also monitor students while t ..."
Abstract
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Cited by 243 (33 self)
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they practice tasks, providing assistance when needed. This paper describes Steve's architecture in detail, including perception, cognition, and motor control. The perception module monitors the state of the virtual world, maintains a coherent representation of it, and provides this information
Brain activation modulated by sentence comprehension.
- Science
, 1996
"... The comprehension of visually presented sentences produces brain activation that increases with the linguistic complexity of the sentence. The volume of neural tissue activated (number of voxels) during sentence comprehension was measured with echoplanar functional magnetic resonance imaging. The m ..."
Abstract
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Cited by 187 (35 self)
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. The modulation of the volume of activation by sentence complexity was observed in a network of four areas: the classical left-hemisphere language areas (the left laterosuperior temporal cortex, or Wernicke's area, and the left inferior frontal gyrus, or Broca's area) and their homologous
Stability, queue length and delay of deterministic and stochastic queueing networks
- IEEE Transactions on Automatic Control
, 1994
"... Motivated by recent development in high speed networks, in this paper we study two types of stability problems: (i) conditions for queueing networks that render bounded queue lengths and bounded delay for customers, and (ii) conditions for queueing networks in which the queue length distribution of ..."
Abstract
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Cited by 231 (21 self)
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that similar stability results hold for such networks under the FCFS policy. Moreover, when restricting to the family of two-state Markov modulated arrival processes, the notion of MER with respect to ` is shown to be
Results 1 - 10
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11,610
