Under atmospheric pressure, homogenous nonequilibrium low temperature plasma was generated by an rf (13.56 MHz) excitation of He gas. By using this cold plasma, ZnO films were deposited on glass substrates exposed to ...
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Under atmospheric pressure, homogenous nonequilibrium low temperature plasma was generated by an rf (13.56 MHz) excitation of He gas. By using this cold plasma, ZnO films were deposited on glass substrates exposed to air at a room temperature. Bis-Dipivaloymethanato Zinc ((C11H19O2)2) was supplied into the plasma with carrier He gas. Thickness and electrical resistivity of the films were then measured. Dependence of rf power and anode-cathode gap on thickness and the electrical resistivity was investigated. In addition, microstructure of the films was studied by FE-SEM observation.
Marrow saturated trabecular bones are two‐phase comp.sites in which the propagation of ultrasonic waves is influenced by relative motion of phases. In particular, in studies in vitro two longitudinal wave modes are o...
Marrow saturated trabecular bones are two‐phase comp.sites in which the propagation of ultrasonic waves is influenced by relative motion of phases. In particular, in studies in vitro two longitudinal wave modes are observed with specific behavior of attenuation and dispersion. Although the existence of the modes is predicted by the macroscopic model proposed by Biot some of their basic properties cannot be derived from the model [see Hosokawa and Otani (1997)]. Thus numerous modifications of the macroscopic model have been developed including layered structure [see Hughes et al. (1999)] or incorporating scattering [see Strelitzki et al. (1998)] in order to obtain better agreement with experimental results. Still, however, some important features such as high attenuation of the fast wave, insignificant dispersion and moderate attenuation of the slow wave, for relatively short waves as comp.red with the characteristic size of pores or trabeculae are not well described. This paper discusses predictions of the proposed microscopic (or exact) two‐phase model developed for chosen cellular geometries [see Kaczmarek et al. (2002)]. The comp.rison of theoretical results with our own and other experimental data is performed. Additionally, references to results obtained for model material (phantoms) with structure corresponding to the models adopted are made.
Energy-aware design and evaluation of network protocols requires knowledge of the energy consumption behavior of actual wireless interfaces. But little practical information is available about the energy consumption b...
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Energy-aware design and evaluation of network protocols requires knowledge of the energy consumption behavior of actual wireless interfaces. But little practical information is available about the energy consumption behavior of well-known wireless network interfaces and device specifications do not provide information in a form that is helpful to protocol developers. This paper describes a series of experiments which obtained detailed measurements of the energy consumption of an IEEE 802.11 wireless network interface operating in an ad hoc networking environment. The data is presented as a collection of linear equations for calculating the energy consumed in sending, receiving and discarding broadcast and point-to-point data packets of various sizes. Some implications for protocol design and evaluation in ad hoc networks are discussed.
Presents the robot soccer software simulation platform to be firstly used at FIRA Robot World Cup China 2001, introduces the system’s purpose and design plan; discusses the system core server configuration and workin...
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Presents the robot soccer software simulation platform to be firstly used at FIRA Robot World Cup China 2001, introduces the system’s purpose and design plan; discusses the system core server configuration and working principle; describes the operating method and how to develop comp.tition strategy, and refers to the teams to take part in FIRA Robot World Cup China 2001 and investigators who are interested in the distributed multi agent system.
For estimation group comp.tition and multiagent coordination strategy, this paper introduces a notion based on multiagent group. According to the control domain, it analyzes the multiagent strategy during comp.tition ...
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For estimation group comp.tition and multiagent coordination strategy, this paper introduces a notion based on multiagent group. According to the control domain, it analyzes the multiagent strategy during comp.tition in the macroscopic. It has been adopted in robot soccer and result enunciates that our method does not depend on comp.tition result. It can objectively quantitatively estimate coordination strategy.
Discusses the application of artificial neural network for MIROSOT, introduces a layered model of BP network of soccer robot for learning basic behavior and cooperative behavior, and concludes from experimental result...
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Discusses the application of artificial neural network for MIROSOT, introduces a layered model of BP network of soccer robot for learning basic behavior and cooperative behavior, and concludes from experimental results that the model is effective.
Robot soccer game is an interesting emerging domain for multiple cooperative robotic system. This paper discusses the detailed design of a simulator, and describes the architecture of soccer server and client in detai...
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Robot soccer game is an interesting emerging domain for multiple cooperative robotic system. This paper discusses the detailed design of a simulator, and describes the architecture of soccer server and client in detail. This simulator is sufficiently flexible and robust for the users to develop strategies for a simulated comp.tition and to test algorithms of intelligent robotics.
The double-square-root downward continuation provides a framework for developing efficient prestack depth migration. For the medium with lateral velocity variation, helical finite-difference scheme presents an accurat...
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Existing multimedia streaming technologies offer no specific support for user interaction like jumping to bookmarks in a video, or switching to reverse play. When the users, e.g., jump to a bookmark, the player reques...
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Existing multimedia streaming technologies offer no specific support for user interaction like jumping to bookmarks in a video, or switching to reverse play. When the users, e.g., jump to a bookmark, the player requests frames for the new presentation point from the server and resumes playing only when the data has arrived. Our solution for this problem is the client prefetching and buffering strategy, MPEG-L/MRP, that ensures that the frames which are needed for a response to a possible user interaction are already in the client's buffer, which leads to quick and smooth reaction to user interactions. In case of variable bandwidth, our MPEG-1 streaming approach selects only a subset of all frames to be fetched from the server and supports a smooth presentation at a reduced frame rate with correct timelines. The technical demonstration shows the interactive streaming of MPEG-videos and illustrates our buffering and prefetching strategy.
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