نتایج جستجو برای: 1016
تعداد نتایج: 1271 فیلتر نتایج به سال:
The dominant regime in most of experiments on ion acceleration from solid targets is the target normal sheath acceleration (TNSA). It is used in laser-matter interaction for laser intensities ranging approximately between 1016 and 1022 W/cm2 as reported in several publications [1, 2]. Several models and scaling laws have been suggested to predict the maximum ion energy of accelerated ions in th...
AIM To investigate the association between education level, occupation status (a proxy for socio-economic status), and consanguinity in 2 large data sets from Tunisia and Croatia countries with different attitudes toward consanguinity. METHODS The sample of 1016 students, attending 5 university institutions in Monastir, Tunisia, were interviewed about the educational level and occupation stat...
We present ground-based, advected aircraft engine emissions from flights taking off at Los Angeles International Airport. 275 discrete engine take-off plumes were observed on 18 and 25 May 2014 at a distance of 400 m downwind of the runway. CO2 measurements are used to convert the aerosol data into plume-average emissions indices that are suitable for modelling aircraft emissions. Total and non...
A comprehensive chronic toxicity and carcinogenicity study was conducted on a series of Aroclors (1016, 1242, 1254, and 1260). Each Aroclor was assessed at multiple dietary concentrations, ranging from 25 to 200 ppm, for 24 months in male and female Sprague-Dawley rats. Liver toxicity was indicated by elevated serum enzyme activity (AST, ALT, and GGT), elevated serum cholesterol concentration, ...
Data taken with ten Cosmic Ray Tracking (CRT) detectors and the HEGRA air-shower array on La Palma, Canary Islands, have been analysed to investigate changes of the cosmic-ray mass composition at the ‘knee’ of the cosmic-ray flux spectrum near 1015 eV energy. The analysis is based on the angular distributions of particles in air showers. HEGRA data provided the shower size, direction, and core ...
Introduction Juvenile idiopathic arthritis (JIA) is a common chronic inflammatory diseases in childhood. Despite remission as a result of a plethora of treatment techniques, the chronic and relapsing nature of the disease requires continuous treatment which causes adverse side effects. It is important to uncover a biomarker that can efficiently predict patient responses to therapy as well as de...
Quantum Hall devices have been used as the primary standard of electrical resistance for over two decades, and they are unlikely to be replaced in this role any time soon. The work presented in this thesis was being done towards the goal of establishing epitaxial graphene on silicon carbide as a new material of choice for these devices. Experiments on individual devices have already demonstrate...
The optimized implementation of the CELP FS1016 spectral analysis and quantization block on a DSP56001 is presented in this paper. This implementation can be seen as a preparation for an optimal low power, small size, custom VLSI implementation. The optimization is based on careful algorithmic optimization and study of the fixed-point quantization effects. Algorithmic optimization deals with th...
A novel variable rate linear predictive coding (LPC) parameter quantization scheme is proposed in which linear prediction is done by using either the current (forward LPC) or previously decoded (backward LPC) speech blocks. The proposed LPC quantization scheme was integrated into the FS1016 Federal Standard CELP coder. Signi cant LPC bit rate reduction is achieved without compromising the decod...
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