نتایج جستجو برای: load restoration
تعداد نتایج: 198319 فیلتر نتایج به سال:
Iii this paper, we present the results of a study of routing algorithms for traf ic restoration after a failure in d virtual circuit packet switched wide area network. ,Ytnndard routing algorithrns based on rniiiiinizing the steady state network delay may not be appropriate for rerouting the calls after a failure, in view of the transient congestion. Here we propose alternative routing schemes ...
To restore the load voltage, dynamic voltage restorer (DVR), which installed between the supply and a sensitive load, should inject voltage and active power from DVR to the distribution system during voltage sag. Due to the limit of energy storage capacity of DC link, it is necessary the minimize energy injection from DVR. In this paper the techniques of the supply voltage sag compensation in a...
Background and aims. Anterior esthetic restoration is challenging in pediatric dentistry, due to limited durability and poor retention of the restoration.This study assessed the effect of air abrasion on tensile failure load of composite class III restorations using different preparation techniques. Materials and methods. 100 extracted human anterior primary teeth were divided, based on the pre...
More than 131 x 10(6) metric tons (MT) of inorganic sediments accumulated in coastal wetlands when Hurricanes Katrina and Rita crossed the Louisiana coast in 2005, plus another 281 x 10(6) MT when accumulation was prorated for open water area. The annualized combined amount of inorganic sediments per hurricane equals (i) 12% of the Mississippi River's suspended load, (ii) 5.5 times the inorgani...
Submerged macrophytes play a key role in north temperate shallow lakes by stabilizing clear-water conditions. Eutrophication has resulted in macrophyte loss and shifts to turbid conditions in many lakes. Considerable efforts have been devoted to shallow lake restoration in many countries, but long-term success depends on a stable recovery of submerged macrophytes. However, recovery patterns var...
The Dynamics of Preference Elicitation after an Environmental Disaster: Stability and Emotional Load
Nonmarket valuation is commonly applied to infer the preferences of individuals for restoration policies after an environmental disaster. A crucial issue in this task is to determine the appropriate lapse of time after which the valuation techniques should be applied. This study investigates the role of the emotional load in explaining the dynamic patterns of elicited preferences. The results s...
statement of problem: the restoration of the teeth should have enough ability to withstand masticator forces while preserving as much tooth structure as possible. purpose: the purpose of this study was to compare the effects of light-heat cured composite with light cured composite restorations on fracture resistance of the restored teeth. materials and methods: forty healthy maxillary premolar ...
In this paper, effect of the islands number variation in restoration process is investigated and a graph based method for determination of optimum islands boundaries is presented. Also, the effect of number and location of black-start units on the restoration process is evaluated. In optimization process, objective function is minimizing Energy Not Supplied (ENS) and constraints are voltage mar...
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