Results 211 to 220 of about 196,993 (262)
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Pollen Load Spectrum of Tomato Pollinators
Neotropical Entomology, 2020Vibrating bees are the main pollinators of the tomato plant (Solanum lycopersicum L.). Knowledge of other alternative food resources for these bees is fundamental for pollinator management actions in agricultural areas. The objective of this study was to evaluate the plants used as food resources for the main pollinators Bombus morio (Swederus) and ...
A. P. Hautequestt +4 more
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Spectrum Load Smoothing for Cognitive Medium Access in Open Spectrum
2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, 2006Today's framework for radio spectrum regulation and the way the usage of radio spectrum is coordinated, is undergoing vital changes. In the face of scarce radio resources, regulators, industry, and the research community are initiating promising approaches towards a more flexible spectrum usage, referred to as open spectrum.
Lars Berlemann +3 more
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Spectrum load smoothing for optimized spectrum utilization - rationale and algorithm
IEEE Wireless Communications and Networking Conference, 2005, 2005This paper aims at the mitigation of the destructive, mutual interference of coexisting, quality of service supporting wireless networks in a spectrum efficient way. The application of "waterfilling" from the information theory on the medium access of resource sharing wireless networks enables a decentralized coordinated, opportunistic usage of the ...
Lars Berlemann, Bernhard Walke
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2020 3rd International Conference on Electron Device and Mechanical Engineering (ICEDME), 2020
In order to improve the energy utilization rate of hydraulic excavator, based on the analysis of the principle of flow regeneration structure of excavator, a flow regeneration characteristic test device based on the measured load spectrum is proposed. The test device adopts the loading mode of electric regulation relief valve, which can simulation the ...
Zhang Junhua +5 more
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In order to improve the energy utilization rate of hydraulic excavator, based on the analysis of the principle of flow regeneration structure of excavator, a flow regeneration characteristic test device based on the measured load spectrum is proposed. The test device adopts the loading mode of electric regulation relief valve, which can simulation the ...
Zhang Junhua +5 more
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Load-aware spectrum distribution in Wireless LANs
2008 IEEE International Conference on Network Protocols, 2008Traditionally, the channelization structure in IEEE 802.11-based wireless LANs has been fixed: Each access point (AP) is assigned one channel and all channels are equally wide. In contrast, it has recently been shown that even on commodity hardware, the channel-width can be adapted dynamically purely in software.
Thomas Moscibroda +5 more
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On life behavior under spectrum loading
Engineering Fracture Mechanics, 1983Abstract B- models are used to study life in cumulative damage under spectrum loading. The basic elements of scatter in sample cdf's, mean cdf, methods of testing and load interaction are delineated and examined in some detail. Application to one set of life data under spectrum loading is considered. Stationary and nonstationary B- models
Frank Kozin, John L. Bogdanoff
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Spectrum Loading and Crack Growth
Journal of Basic Engineering, 1972An analytical device for improving the accuracy of crack growth predictions in metal subjected to variable amplitude cyclic loading is presented. A modification to the linear cumulative growth idea is proposed which incorporates a consideration of prior load history by taking into account the yield zone ahead of the crack tip.
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Spectrum sharing in heavy loaded networks
2012 15th International Telecommunications Network Strategy and Planning Symposium (NETWORKS), 2012Spectrum is one of the most precious radio resources that we have in communication networks, which should be utilized very efficiently. In this paper, we propose some admission control algorithms that activates users in the network, such that total sum rate of the network is maximized.
Milad Fozooni +2 more
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