نتایج جستجو برای: pegasus
تعداد نتایج: 498 فیلتر نتایج به سال:
Polyclonal antibodies collected from the blood of animals and humans experimentally immunised or spontaneously immunised respectively can be injected into patients to protect them against pathogens, toxins, tumours etc. This approach is severely limited by the availability of human polyclonal antibodies of interest. Moreover, polyclonal antibodies from animals are recognised as antigens by pati...
Since all sensor nodes in wireless sensor networks work by their own embedded batteries, if a node runs out of its battery, the sensor network cannot operate normally. In this situation we should employ the routing protocols which can consume the energy of nodes efficiently. Many protocols for energy efficient routing in sensor networks have been suggested but LEACH and PEGASIS are most well kn...
We present results from Chandra observations of the galaxy pair NGC 7619 and NGC 7626, the two dominant members of the Pegasus group. The X-ray images show a brightness edge associated with each galaxy, which we identify as merger cold fronts. The edges are sharp, and the axes of symmetry of the edges are roughly anti-parallel, suggesting that these galaxies are falling towards one another in t...
In this paper we propose a protocol for periodical data collection applications in wireless sensor networks. The protocol is energy-aware in the sense that the way of energy consumption used here is evenly distributed. The protocol is chain-oriented and uses data fusion at every sensor node. Compare to other data collection protocols, this protocol shows better performance with respect to both ...
This paper presents a framework for plot control in interactive story systems. In this framework, the user takes the place of the main character of the story, the protagonist. The rest of the cast consists of discrete characters, each playing a specific role in the story. A separate module in this system, the plot manager, controls the behavior of the cast and specifies what the protagonist can...
WSNs consists of small devices called sensor nodes having the capability of sensing the environment around them, computation the task, like gathering, storing, transmitting information, and performing wireless communications. Nowadays the main area of interest amongst researcher is the development of energy efficient algorithm in WSNs, so that the lifetime of sensors is enhanced. Since energy a...
In WSNs, energy efficiency and low latency are considered as two key issues in designing routing protocol. This paper introduces two schemes to combine clustering strategy with chain routing algorithm in order to satisfy both energy and delay constraints in WSNs. Furthermore by one scheme, we propose a two layer hierarchical routing protocol called Chain Routing Based on Coordinatesoriented Clu...
We report on the use of a ultrashort high brightness relativistic beam from the UCLA Pegasus laboratory RF photoinjector source for probing matter transformation at the atomic scale with sub-100 fs time resolution. The high accelerating gradient and the relativistic electron energy allow to pack more than 107 electrons in less than 100 fs bunch length, enabling the study of irreversible ultrafa...
This paper de nes a formal classi cation of multi database languages into ve levels of database integration with increasing degree of global control and decreasing degree of local autonomy First the fundamental interoperability concepts and mechanisms are identi ed for each of these levels Their consequences on local autonomy as well as implementation draw backs are discussed Second various mul...
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