springs are the important water resources, which thier study is necessary in terms of their management and exploitation. in northern iran, the karst springs locate in the central alborz highlands and alluvial springs on the caspian southern coasts.the karst and alluvial springs discharge is variable because of different conditions in terms of aquifer, topography and precipitation .this study ha...

Due to its high machining precision, EDM technology is nowadays very important in the production of high-precision parts for various industries. The precision machined surface combination with ability machine circular surfaces brings, addition several advantages, some negatives. most significant negative this relatively low productivity as well overall efficiency. latter affected by many accomp...

Driftwood belongs to natural rivers just like water and sediment do. A sound ecosystem requires driftwood, although it might jam at civil structures, altering the flow section rise backwater. Safety considerations suggest removing wood from rivers, whereas ecological experience asks for its presence. The situation become critical if spillways clog during floods, so that their discharge capacity...

The electrochemical activity of LiNiO2 at the initial cycle and factors affecting its were understood. Even though can achieve almost theoretical charge capacity, it cannot deliver discharge capacity that would result in low 1st Coulombic efficiency (CE). For different upper cut-off voltages 4.3 4.1 V, CE barely increases. Given H2-H3 phase transition occurs ∼4.2 is not caused by this but a add...

A two-dimensional self-consistent simulation model is used to study the effect of the geometric parameters on the operating voltages and ultraviolet ~UV! efficiency of a coplanar-electrode plasma display panel cell. It is found that in the standard coplanar-electrode geometry there is a tradeoff between high UV efficiency and low operating voltages as the electrode gap, or the parameters of the...

With sufficient electricity storage capacity, any power production profile may be mapped onto any desired supply profile. We present a framework to determine the required storage power as a function of time for any power production profile, supply profile, and targeted system efficiency, given the loss characteristics of the storage system. We apply the framework to the electrochemical storage ...

OBJECTIVE To evaluate the effectiveness of the role of a discharge coordinator whose sole responsibility was to plan and coordinate the discharge of patients from medical wards. DESIGN An intervention study in which the quality of discharge planning was assessed before and after the introduction of a discharge coordinator. Patients were interviewed on the ward before discharge and seven to 10...

OBJECTIVE To estimate the efficiency of inpatient rehabilitation for patients after stroke in Thailand. DESIGN Multi-centre, prospective study. SUBJECTS Patients after stroke, aged >or= 18 years, with stable medical signs, able to follow 1-step commands and to sit for at least 30 min. METHODS Main outcomes included Barthel Index (BI) scores, BI effectiveness, BI efficiency, length of stay...