Dependence of transfer time of bluetooth payload packets on the surroundings and distance

This paper deals with the Bluetooth technology in telecommunication networks. The basis for the data transmission is a packet which has its own specifics in the wireless communication. The more important is signal level, but other parameters like transfer time and a number of transferred packets are interesting too. The output of this paper is a proposed mathematical model which describes dependencies of this output parameters on the distance of communicating devices and on the environment where these devices are placed. Some input criteria and conditions are defined for the functionality of the proposed model. The file transfer between both devices depends on the distance between communicating devices and on the surroundings, where the slave device is placed. For our purposes were selected some possible surroundings that might be encountered, it is free-space, paper with variant thickness, PVC or leather and wood with their density. Equation of mathematical model thanks to application of logarithmic regression analysis on graphical output was found out the equation of output function of mathematical model. Because partial equations were multiplying, it is multiplicative (additive) type of regression model

Diamonds as timing detectors for MIP: The HADES proton-beam monitor and start detectors

This paper gives an overview of a recent development of measuring time of flight of minimum-ionizing particles (MIP) with mono-crystalline diamond detectors. The application in the HADES spectrometer as well as test results obtained with proton beams are discussed.Comment: submitted to Nuclear Instruments and Methods

Feasibility of mitigating physical disturbances to eelgrass in northern Casco Bay: Impacts and Options

This report has been prepared in response to a requirement set forth in the Maine Department of Environmental Protection’s permit issued to the Maine Department of Inland Fisheries and Wildlife for construction of an all-tide boat launch facility on Merepoint Neck, Brunswick, Maine that calls for the development of a feasibility guide of mitigation options in northern Casco Bay for physical disturbance impacts to eelgrass, Zostera marina, occurring there

Synthesis and Physico-Chemical Investigation of some Thermosets and Their Composites

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Smart Vehicle- to-Vehicle Communication with 5G Technology

Vehicle-to-vehicle (V2V) communication aim to avoid vehicular accident by providing advisory to the driver as less congestion, mishap warning, road investigation, etc. Technological developments in electronics, computing, identifying, robotics, control, signal processing, and communications makes this things possible. Different technology like WAVE) is based on the IEEE 802.11p standard , DSRC,CALM standard mainly used in v2v communication. One major technical challenge in all technology is to achieve low-latency in delivering emergency warnings in various road situations. 5G technology with its specific potential feature e.g. End to End latency -1ms,High data rate, mobility, traffic density makes V2V communication smart DOI: 10.17762/ijritcc2321-8169.150515

Velocity of sound in a Bose-Einstein condensate in the presence of an optical lattice and transverse confinement

We study the effect of the transverse degrees of freedom on the velocity of sound in a Bose-Einstein condensate immersed in a one-dimensional optical lattice and radially confined by a harmonic trap. We compare the results of full three-dimensional calculations with those of an effective 1D model based on the equation of state of the condensate. The perfect agreement between the two approaches is demonstrated for several optical lattice depths and throughout the full crossover from the 1D mean-field to the Thomas Fermi regime in the radial direction.Comment: final versio