54,741 research outputs found
Higgs with Hadronic Signatures
The decay of the Higgs boson to b quarks should be the dominant decay mode,
but it has not yet been conclusively established. The LHC run 1 results are
recalled and the current status of the LHC Run 2 studies is reviewed. The
analysis is approaching decisive sensitivity.Comment: 4 page Moriond QCD 2017 writeu
AN ANALYSIS OF RATES OF CHANGE IN COMMUNITY PER CAPITA INCOME BY DISCRIMINANT ANALYSIS
Research Methods/ Statistical Methods,
Correction of laser range tracking data for atmospheric refraction at elevations above 10 degrees
A formula for correcting laser measurements of satellite range for the effect of atmospheric refraction is given. The corrections apply above 10 deg elevation to satellites whose heights exceed 70 km. The meteorological measurements required are the temperature, pressure, and relative humidity of the air at the laser site at the time of satellite pass. The accuracy of the formula was tested by comparison with corrections obtained by ray-tracing radiosonde profiles. The standard deviation of the difference between the refractive retardation given by the formula and that calculated by ray-tracing was less than about 0.04% of the retardation or about 0.5 cm at 10 deg elevation, decreasing to 0.04 cm near zenith
An overview of link-level measurement techniques for wide-area wireless networks
By building wireless link-level measurement tools we hope to improvement the design, deployment and management of wide-area wireless community networks. This paper identifies existing link-level measurement techniques and discusses the advantages and disadvantages of each in the context of measuring and monitoring such networks. Finally, we make a case for the need for more sophisticated techniques and tools which will assist both day-to-day network operations as well as wireless network research
Wireless local area network planning: an overview
When planning a wireless local area network, there are design issues that need to be considered. In this paper, the fundamentals of planning a wireless local area network are introduced and discussed to highlight the requirements involved. Network constraints, as their relevance to wireless network design is investigated. The paper concludes with an overview of wireless network planning solutions including commercial and free software, and an introduction to the authorās research
Analysis of a Model Biological Switch
A model mechanism proposed by Murray [Phil. Traps. Roy. Soc. London B, 295 (1981), pp. 473ā496] for generating wing patterns and eyespots on butterflies and moths is based on a morphogen (S) activated biological switch for a gene product (g). We analyse one of the resulting partial differential equation systems, namely S_t = DĪS - kS, g_t = k_tS + Ī±g (g-k_2) (g_c-g ), where D,k,k_1 ,k_2 ,g_c > k_2 and Ī± are positive constants. We determine analytically the size of the spatial domain where g ā g_c as t ā ā after an influx of S at the origin. This gives the size of the eyespot in terms of the mechanism parameters. The analytical problem is a nontrivial singular perturbation expansion which we discuss in detail
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