99 research outputs found

    BUSINESS ETHICS OR CORRUPTION IN INDIA

    Get PDF
    India is considered one of the most popular Developing country in the world. But what does that imply to us as future managerial candidates or proprietorship, that is it actually the most ethical or corrupted country to do business. In the current business world the rule of ethics is not just vaguely looked at or changeable to a particular business entities needs

    SDL to Fiacre translation

    Get PDF
    International audienceThe translation of a system model to an intermediate format is an important step towards formal proofs of properties. This paper presents the formulation of rules to enable the translation of SDL standard models to Fiacre language. The translated model is then provided as input to a suitable toolset that performs model checking and other analysis. The formulated translation rules are discussed in view of the correctness of translation and ease of implementation. Implementations of some of the translation rules in an industrial tool (PragmaDev RTDS), and a proof of the concept on a simple SDL model are presented to ascertain the validity of the proposed translation

    The Study of Physical Parameters of Pb Modified Germanate Chalcogenide Glass

    Get PDF
    In the present paper we have studied the physical properties of Se-Sn-Pb chalcogenide material. The necessary physical parameters which have important role in determining the structure and strength of the material viz. constraints, coordination number, glass transition temperature etc. has been calculated. The decreasing trend has been found in cohesive energy, heat of atomization and mean bond energy. The glass transition has been studied using the Tichy-Ticha approach which also decreases. The decrease in these physical parameters is due to the increase of ionic character in the material. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/3559

    An investigation on molecular dynamics of binary mixtures of N-methylacetamide and tetramethylurea in microwave region

    Get PDF
    The dielectric relaxation times (τ)and the dipole moments (µ) of the binary mixtures of different molar concentrations of tetramethylurea (TMU) in the binary mixtures of N-methylacetamide (NMA) and tetramethylurea (TMU) in benzene solutions have been calculated by using standard standing wave microwave techniques and Gopala Krishna’s single frequency (9.90 GHz) concentration variational method at different temperatures (25 °C, 30 °C, 35 °C and 40 °C). The energy parameters (He, Fe, Se) for the dielectric relaxation process of binary mixtures containing 30% mole-fraction of TMU have been calculated at the respective given temperatures and the comparison has been made with the corresponding energy parameters (Hη, Fη, Sη) for the viscous flow. On the basis of the observations, it is found that the dielectric relaxation process can be treated as the rate process like the viscous flow process. The solute-solute and solute-solvent types of the molecular associations have been predicted

    Restricted Diffusion

    Get PDF
    Chemistr

    Study and Analysis of Human Nervous System and Effects of External EM Signals on Conduction in Human Nerves

    Get PDF
    Biological effects of microwaves or in general any EM irradiation is mostly analysis in terms of thermal effects. On this ground mostly exposures from mobile phone towers are said to be safe but some of the field studies reports strongly support the ill effects associated with it. Scientists and researchers are not of clear opinion about the mechanism, how the effects can be visualized. In the study reported here, the behavior of the nerve conduction is realized is in the form of electrical circuit, basically in the form of RC Transmission line. This paper shows simulation results of the effect of the continuous exposure of External EM Field on the nervous. Simulation is based on the MATLAB® and analysis of effect of mixing of AC signal with the membrane potential is done. Another simulation result of the affect of variation of frequency on the conduction behavior is also simulated in this paper. Results indicate that the reported bio-effects may be not of direct nature, like in case of ionic radiations but may be due to the malfunctioning of the never communication network due to EM- exposure. Further development of the experimental model is under process

    Design of Reliable Analog DMTL Phase Shifter with Improved Performance for Ku Band Applications

    Get PDF
    An analog phase shifter based on distributed MEMS transmission line (DMTL) is designed for Ku band applications. Traditional RF MEMS phase shifter comprising 6 switches has limited phase shift of 37.75° due to instability region. A new concept of stopper is incorporated to achieve high phase shift. In the present paper, optimisation of the analog phase shifter is done to increase its phase shift upto 88.63°. Phase shift is a strong function of capacitance ratio which is increased from 1.75 to 2.95. The maximum operating voltage and mechanical resonant frequency for the phase shifter are 16 V and 8.3 KHz, respectively. The switching time is calculated to 56 μs. The simulated insertion loss of the phase shifter is -1.75 dB with return loss of -20.49 dB at 17 GHz. The simulated results are verified with analytical modelling which are in close match

    Design optimization of deflection caused after release of multilayer structural membrane of Symmetric Toggle Switch

    Get PDF
    This paper presents the optimization in deflection caused by the inbuilt stress generated in mechanical or movable membrane of Symmetric Toggle RF MEMS Switch (STS). The movable membrane of STS was initially fabricated with two different materials, i.e. Chrome and Gold. The simulated deflection at 70°C was 11.9 μm, and experimental deflection was 11-12 μm. We present a study of inbuilt deflection reduction in multimetal movable layers without change in actuation voltage of the switch. The design study was initially carried out on cantilevers and then on structural membrane of STS. STS with proposed multilayer of Cr-Au-Au-Ti-Au has a simulated deflection of 0.56 μm at 70°C. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/2212

    Resistivity dependent dielectric and magnetic properties of Pb(Fe0.012Ti0.988)O3 nanoparticles

    Get PDF
    High resistivity in nanostructured Pb(Fe0.012Ti0.988)O3 system prepared by using polyvinyl alcohol (PVA) in chemical route is observed. The PVA acts as a surfactant to limit the particle size. The Fe substitution for Ti controls the chemical stoichiometry and reduces the lattice distortion, i.e., c/a ratio, and hence the transition temperature reduces with Fe content. The phase structure, morphology, particle size, dc resistivity, and dielectric and magnetic properties of Pb(Fe0.012Ti0.988)O3 nanoparticles have been characterized by x-ray diffraction, transmission/scanning electron microscopy, source meter, LCR meter, and vibrating sample magnetometer. The results indicate that the nanosize particles have high resistivity, which improves the dielectric constant at high-frequency region and increases magnetization of the specimens. The observed variable-range-hopping conduction mechanism indicates that Fe doping leads to the occurrence of local defect states in the PbTiO3 lattice. The dispersionless dielectric properties with low loss are observed up to 15 MHz. The dielectric properties are improved than those obtained by the conventional process. The initial permeability values do not exhibit much variation up to ferromagnetic transition temperature after which it falls sharply. The large value of saturation magnetization is observed at room temperature
    corecore