Task scheduling poses a wide variety of challenges in the cloud computing paradigm, as heterogeneous tasks from a variety of resources come onto cloud platforms.The most important challenge in this paradigm is to avoid single points of failure, as tasks of various users are running at the cloud provider, and it is very important to improve fault to
In the collider run II, the Tevatron operates with 36 high intensity bunches of 980 GeV protons and antiprotons.Particles not captured by the Tevatron rf system pose a threat since they can quench the superconducting One Hitters magnets during acceleration or at beam abort.We describe the main mechanisms for the origination of this uncaptured beam,
Shooshtar considered as one of the most significant cities of Khuzestan in Safavid era was selected by the governors due to its geographical, military and strategic position.The development of new towns in Shooshtar Baggies and around it by the Safavid local rulers led to its more prosperity.However, the entrance of various tribes including Qezelba
Abstract Background With the establishment of a new medical college in Botswana to train generalist-doctors and specialists, we set out to explore the career preferences of medical students, factors that influence their choices and attitude to local postgraduate training.Methods A descriptive cross-sectional questionnaire-based study was conducted
In dual-wavelength free-space optical communication systems, the wavefront distortion differences caused by the wavelength difference of the signal and beacon lights cannot be completely corrected.In this study, according to the method of geometric optics, the relationship between the wavefront phases of the signal and beacon lights is analyzed by