371 research outputs found
Job Satisfaction of the Employees in the Mobile Phone Corporates in Bangladesh: A Case Study
Optimizing employee satisfaction is a key to the success of any business that relies on a variety of organizational and psycho-economic factors. This study was conducted to identify that sort of key factors, which are responsible to influence on the overall job satisfaction in the growing mobile phone corporate in Bangladesh. The phone corporates, which are included here in the study, are Grameen Phone (GP), Bangla Link and Aktel. The factors included in the investigation as independent variables are Compensation Package, Supervision, Career Growth, Training and Development, Working atmosphere, Company Loyalty and Performance Appraisal. The result indicates that training and performance appraisal, work atmosphere, compensation package, supervision, and company loyalty are the key factors that impact on employees’ job satisfaction in these corporations. The study also finds that the employees of these three corporations possessed above of the moderate level and positive attitude towards job satisfaction, which could be nudged up to excellent status of employee satisfaction if the management takes those identified factors with a little more rigorous weight into their considerations and acts further accordingly.
Quantum transport at the Dirac point: Mapping out the minimum conductivity from pristine to disordered graphene
The phase space for graphene's minimum conductivity is
mapped out using Landauer theory modified for scattering using Fermi's Golden
Rule, as well as the Non-Equilibrium Green's Function (NEGF) simulation with a
Monte Carlo sampling over impurity distributions. The resulting `fan diagram'
spans the range from ballistic to diffusive over varying aspect ratios (),
and bears several surprises. {The device aspect ratio determines how much
tunneling (between contacts) is allowed and becomes the dominant factor for the
evolution of from ballistic to diffusive regime. We find an
increasing (for ) or decreasing () trend in vs.
impurity density, all converging around at the dirty
limit}. In the diffusive limit, the {conductivity} quasi-saturates due to the
precise cancellation between the increase in conducting modes from charge
puddles vs the reduction in average transmission from scattering at the Dirac
Point. In the clean ballistic limit, the calculated conductivity of the lowest
mode shows a surprising absence of Fabry-P\'{e}rot oscillations, unlike other
materials including bilayer graphene. We argue that the lack of oscillations
even at low temperature is a signature of Klein tunneling
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