نتایج جستجو برای: spea
تعداد نتایج: 1126 فیلتر نتایج به سال:
In order to achieve rapid and fair distribution of emergency supplies after a large-scale sudden disaster, this paper constructs comprehensive time perception satisfaction function material loss pain portray the perceived disaster victims based on objective constraints such as limited transport, multimodal transport supply being less than demand, at same considers subjective quantity under rati...
عملکرد سیستمهای مبدل مدرن از نظر تثبیت ولتاژ خروجی و هم زمان با آن دارا بودن جریان عاری از هارمونیک و همفاز با ولتاژ بسیار مهم است. در این تحقیق استفاده از کنترل کننده های مرتبه کسری که تعمیم یافته کنترل کننده های معمولی هستند مورد بررسی قرار گرفته است و طراحی توسط روش های بهینه سازی چند هدفه انجام شده است. هدف اصلی این پروژه بهینه سازی عملکرد یکسوکننده یac/dc می باشد که در آن از یک کنترلر مرتب...
In this paper, a multipath routing scheme is proposed for data transmission in a packet-switched network to improve the reliability of data delivery to multicast destinations, and to reduce network congestion. A multi-objective optimization model is presented that utilizes FEC (Forward Error Correction) across multiple multicast trees for transmitting packets toward the destinations. This model...
In this study, 68 group A streptococcus (GAS) isolates associated with two outbreaks of acute glomerulonephritis (AGN) in China were analyzed by emm typing. A total of 11 different emm types were identified. Analysis of emm type distribution suggested that AGN outbreaks in two counties were caused by emm60.1- and emm63.0-type GAS. These two types were further characterized by pulsed-field gel e...
The primary objective of this paper is to put forward a general framework under which clear definitions of immune operators and their roles are provided. To this aim, a novel Population Adaptive Based Immune Algorithm (PAIA) inspired by Clonal Selection and Immune Network theories for solving multi-objective optimization problems (MOP) is proposed. The algorithm is shown to be insensitive to th...
This paper was selected for presentation by an SPE Program Committee following review of information contained in a proposal submitted by the author(s).
This paper makes three observations with regard to the application of algorithms such as wsat and relsat to problems of practical interest. First, we identify a speciic calculation (\subsearch") that is performed at each inference step by any existing satissability algorithm. We then show that for realistic problems, the time spent on subsearch can be expected to dominate the computational cost...
This paper was selected for presentation by an SPE Program Committee following review of information contained in an abstract submitted by the author(s).
Labor markets are the most important mediator of German uniication and wages are a central indicator of its progress. Starting from the observation that a wage diierential between two workers can arise either because workers have diierent endowments of human capital characteristics or remuneration to these characteristics diier, we apply an Oaxaca-style decomposition to the post-uniication wave...
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