Abstract Phase Data Concentrator (PDC) is an important part of Wide Area Measurement System (WAMS) and widely used in transmission systems. WAMS technology will also be applied smart distribution network, which has many nodes, complex architecture various types data services, a single communication mode cannot meet its needs. In order to solve this problem, paper first introduces the compositio...

Phasor data concentrators (PDCs) are the critical components of a wide area monitoring system (WAMS) in the smart grid. They are multi-processor devices employed to collect, concentrate, and synchronize phasor data that is from various phasor measurement units and from other PDCs. Because of their present significance and potential criticality for WAMS, reliability of PDCs has become a high pri...

Essentialism and social constructionism theories have long explained the difficulties women experience as they aspire to higher managerial positions or enter science and technology fields. In the 1970s, the Women as Managers Scale (WAMS) sought to determine the extent to which males perceived females as being different from their social group. Given efforts to encourage women to consider IT car...

سابقه و هدف: ورود گونه­­ های ماهی مهاجم دراکوسیستم ­های آبی، سبب بروز انواع اثرات منفی اکولوژیکی اقتصادی-اجتماعی می ­­شود. اولین گام در تجزیه تحلیل مخاطرات ناشی از گونه­ غیر­بومی، شناسایی خطر است بر این اساس ابزارهای متعددی برای ارزیابی خطرات تهاجمی غیربومی به منظور پشتیبانی تصمیم گیرندگان گونه ­­ها ایجاد شده است. هدف پژوهش قدرت تیلاپیای شکم قرمز (Coptodon zillii) حوضه آبریز تالاب شادگان (حوضه‌...

To monitor network operation in real-time, power system operators have developed wide-area monitoring systems (WAMS). However, the centralized communication and information processing architecture of WAMS cannot be extended easily to distribution networks. In this aspect, a three-level distributed is proposed paper, concerning dynamic analysis transmission, primary secondary networks by exploit...

We have implemented a Matlab code to compute Discrete Extremal Sets (of Fekete and Leja type) on convex or concave polygons, together with the corresponding interpolatory cubature formulas. The method works by QR and LU factorizations of rectangular Vandermonde matrices on Weakly Admissible Meshes (WAMs) of polygons, constructed by polygon quadrangulation. 2000 AMS subject classification: 65D05...