Optimal Power Flow (OPF) is one of the main functions of Power Generation Operation and Control. It determines the optimal settings of generating units, bus voltage, transformer tap and shunt elements in Power System with the objective of minimizing total production costs or losses while the system is operating within its security limits. The aim of this paper is to propose a methodology (ABCA-...

Góral-Półrola, presents a new, interdisciplinary approach to speech fluency disorders using cognitive linguistics, humanistic psychology and process neuropsychology, enabling us to discuss stuttering from more than one perspective. This in-depth study on the borderline subject of neurologopedia, pragmalinguistics (the study of the use of illocution in a language) and neuropsychology (microgenet...

There has been a consensus on integrating Computing into the teaching and learning of STEM (Science, Technology, Engineering Math) subjects in K-12 (Kindergarten to 12th grade US education system). However, rigorous study impact an integrated curriculum students' computing and/or subject(s) is still rare. In this paper, we report our research how well helps middle school students learn through ...

هدف: هدف از این پژوهش بررسی واسطه‌­ای راهبردهای سازش نایافته تنظیم شناختی هیجان در رابطه باورهای فراشناختی با اضطراب امتحان بود. روش: روش حاضر توصیفی و نوع همبستگی جامعه آماری را کلیه دانش‌­آموزان پسر دوره دوم متوسطه شهر تهران سال تحصیلی 1401-1400 تشکیل دادند که تعداد 456 نفر به نمونه‏‌گیری دسترس انتخاب شرکت کردند. ابزارها شامل سیاهه ابوالقاسمی همکاران (1375)، پرسشنامه باکو دیگران (2009)، فرم ک...

We propose a new stratified waveguide grating coupler (SWGC) to couple light from a fiber at normal incidence into a planar waveguide. SWGCs are designed to operate in the strong coupling regime without intermediate optics between the fiber and the waveguide. Two-dimensional finite-difference time-domain simulation in conjunction with microgenetic algorithm optimization shows that approximately...

This case study shows how a student’s strategies and associated conceptions emerged and changed over the course of a 6-session tutoring curriculum designed to develop conceptual knowledge of linear functions. Using microgenetic and sequential analyses, we identify the student’s strategies and conceptions and describe how these changed. We show how the student did not erase his original concepti...