نتایج جستجو برای: mass budget
تعداد نتایج: 509221 فیلتر نتایج به سال:
We study optimal procurement mechanisms for a financially constrained buyer subject to ex post incentive compatibility and individual rationality. In our setup, a buyer who has a fixed budget wishes to purchase a homogeneous product up to a maximum demand amount. We characterize the optimal mechanism when the budget constraint always binds and when the maximum demand constraint always binds. Wh...
This study investigates hydrologic processes of four different flow-through created freshwater wetlands in Ohio, USA, by use of several versions of a simple daily mass-balance water budget model. The model includes surface inflows and outflows, precipitation, evapotranspiration, and groundwater seepage. We calibrated the daily water budget for two experimental wetlands that had pumped inflow du...
We present the ambitions of the SWUSV (Space Weather and Ultraviolet Solar Variability) Microsatellite Mission that encompasses three major scientific objectives: (1) Space Weather including the prediction and detection of major eruptions and coronal mass ejections (Lyman-Alpha and Herzberg continuum imaging); (2) solar forcing on the climate through radiation and their interactions with the lo...
Feedback from core collapse supernovae (SNe), the final stage of evolution massive stars, is a key element in galaxy formation theory. The energy budget SN feedback, as well duration over which SNe occur, are constrained by stellar lifetime models and minimum mass star that ends its life SN. Simplifying approximations for this rate ubiquitous simulation studies. We show here how choice timings ...
A generalization of Arakawa and Schubert’s convective quasi-equilibrium principle is presented for a closure formulation of mass-flux convection parameterization. The original principle is based on the budget of the cloud work function. This principle is generalized by considering the budget for a vertical integral of an arbitrary convection-related quantity. The closure formulation includes Ar...
Due to an increase in number of geostationary spacecraft and limits imposed by east-west spacing requirements, the geostationary orbit is becoming congested. To increase its capacity, this paper proposes to create new geostationary slots by displacing the geostationary orbit either out of or in the equatorial plane by means of hybrid solar sail and solar electric propulsion. To minimize propell...
introduction: the purpose of this study was to examine the possibility of implementing operating budgeting in shiraz municipality. method: the population of this study was consisted of four groups of individuals who were aware of the various phases of budgeting in shiraz municipality including: (1) senior managers and administrative and financial assistants, (2) financial managers along with ac...
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