102,296 research outputs found
Modeling of a Photovoltaic-Powered Electric Vehicle Charging Station with Vehicle-to-Grid Implementation
No full textThis paper is aimed at modelling of a distinct smart charging station for electric vehicles (EVs) that is suitable for DC quick EV charging while ensuring minimum stress on the power grid. Operation of the charging station is managed in such a way that it is either supplied by photovoltaic (PV) power or the power grid, and the vehicle-to-grid (V2G) is also implemented for improving the stability of the grid during peak load hours. The PV interfaced DC/DC converter and grid interfaced DC/AC bidirectional converter share a DC bus. A smooth transition of one operating mode to another demonstrates the effectiveness of the employed control strategy. Modelling and control of the different components are explained and are implemented in Simulink. Simulations illustrate the feasible behaviour of the charging station under all operating modes in terms of the four-way interaction among PV, EVs and the grid along with V2G operation. Additionally, a business model is discussed with comprehensive analysis of cost estimation for the deployment of charging facilities in a residential area. It has been recognized that EVs bring new opportunities in terms of providing regulation services and consumption flexibility by varying the recharging power at a certain time instant. The paper also discusses the potential financial incentives required to inspire EV owners for active participation in the demand response mechanism
Erratum: Correction: H<sub>2</sub> as a fuel for flavin- and H<sub>2</sub>O<sub>2</sub>-dependent biocatalytic reactions (Chemical communications (Cambridge, England) (2020))
No full textCorrection for 'H2 as a fuel for flavin- and H2O2-dependent biocatalytic reactions' by Ammar Al-Shameri et al., Chem. Commun., 2020, DOI: 10.1039/d0cc03229h.BT/Biocatalysi
Growth of a High-quality Zn(S,O,OH) thin film via chemical bath deposition for Cd-free Cu(In,Ga)Se-2 solar cells
No full textThis study focused on the characterization and optimization of a Zn(S,O,OH) thin film via chemical bath deposition (CBD) on a Cu(In,Ga)Se-2 (CIGS) film in order to obtain a reproducible and high-quality Cd-free buffer layer. High-resolution images of the actual film growth during the CBD process were observed to deeply understand the growth conditions for a uniform and pinhole-free Zn(S,O,OH) film on the CIGS film. The homogeneous precipitation of Zn(S,O,OH) was suppressed through the complexation reaction in the solution, and the heterogeneous precipitation of Zn(S,O,OH) was activated on the CIGS film by increasing the NH3 concentration. At NH3 concentration of 7 M, the Zn(S,O,OH) film grown on the CIGS film completely covered the CIGS surface via the heterogeneous precipitation of Zn(S,O,OH). However, it contained many pinholes. The pinholes were eliminated by suppressing the formation of the Zn(OH)(2) precipitates at a lower temperature (73 degrees C). At the optimized conditions of the CBD process, the buffer film grown on the CIGS film contained a large amount of oxygen in the form of Zn-O and Zn-OH bonds. By annealing the Zn(S,O,OH) film, the content of the Zn-OH bond decreased through dehydration and that of the Zn-O bond increased. The J(SC) of the cell performance was greatly improved by annealing the Zn(S,O,OH) film and a conversion efficiency of 14.2% with V-OC= 0.62 V, J(SC)=35.1 mA/cm(2), and FF=65.1 was achieved. (C) 2013 Elsevier B.V. All rights reserved
Adapting authoritarianism: institutions and co-optation in Egypt and Syria
No full textThis PhD thesis compares Egypt and Syria’s authoritarian political systems. While the tendency in social science political research treats Egypt and Syria as similarly authoritarian, this research emphasizes differences between the two systems with special reference to institutions and co-optation. Rather than reducibly understanding Egypt and Syria as sharing similar histories, institutional arrangements, or ascribing to the oft-repeated convention that “Syria is Egypt but 10 years behind,” this thesis focuses on how events and individual histories shaped each states current institutional strengthens and weaknesses. Specifically, it explains the how varying institutional politicization or de-politicization affects each state’s capabilities for co-opting elite and non-elite individuals.
Beginning with a theoretical framework that considers the limited utility of democratization and transition theoretical approaches, the work underscores the persistence and durability of authoritarianism. Chapter two details the politicized institutional divergence between Egypt and Syria that began in the 1970s. Chapter three and four examines how institutional politicization or de-politicization affects elite and non-elite individual co-optation in Egypt and Syria. Chapter five discusses the study’s general conclusions and theoretical implications.
This thesis’s argument is that Egypt and Syria co-opt elites and non-elites differently because of the varying degrees of institutional politicization in each governance system. Rather than view one country as more politically developed than the other, this work argues that Syria’s political institutions are more politicized than their Egyptian counterparts. Syria’s political arena is, thus, described as politicized-patrimonialism. Syria’s politicized-patrimonial arena produces uneven co-optation of elites and non-elites as they are diffused through competing institutions. Conversely, the Egyptian political arena remains highly personalized as weak institutions and individuals are manipulated and molded according to the president’s ruling clique. This is referred to as personalized-patrimonialism. As a consequence, Egypt’s political establishment demonstrates more flexibility in ad hoc altering and adapting its arena depending on the emergence of crises.
This study’s theoretical implications suggest that, contrary to modernization and democratization theory’s adage that institutions lead to a political development, politicized institutions within a patrimonial order actually hinder regime adaptation because consensus is harder to achieve and maintain. It is within this context that Egypt’s de-politicized institutional framework advantages its top political elite. In this reading of Egyptian and Syrian politics, Egypt’s personalized political arena is more adaptable than Syria’s. These conclusions do not indicate that political reform is a process underway in either state
Maktabat Al Muthanna Baghdad Feb-May 1962
No full textOn the same date, Ali Al-Mansouri issued an official financial statement confirming that the Al-Khanji Foundation owed a total of 11.375.أصدر علي المنصوري بيانًا ماليًا رسميًا بتاريخ 25 نيسان 1962 يُفيد بأن مؤسسة الخانجي مدينة بمبلغ إجمالي قدره 11,375
Mafhūm al-Ḥadīth al-Gharīb ‘ind al-Ṭabrānī: Dirāsah Istiqrā’iyah Naqdiyah
No full textTulisan Tabarani dalam studi terakhir dari sepuluh bukunya tidak pernah menggambarkan dari Sepuluh hadits, yang tidak pernah mutlak lemah dari perawinya.Adapun hadis kesebelas, dia membuatnya menjadi sahih, dari wajah yang dia ambil, dari jalur Abdul Hamid Bin Essam Al-Jarjani, dan terkejut dengan narasi unik dari ceramah Abu Dawud Al-Tailasi, dari bagian Ibn al-Hajjaj, dan mengoreksinya karena ia mengikuti dua jalur dari Abdul Malik bin dan Ameer bin Sweid.Al-Tabarani dikejutkan oleh hadits yang ada satu kata ganti di dalamnya yang lemah, atau ini diriwayatkan oleh hadits dengan dokumen tanpa jaminan yang bertentangan dengan apa yang diriwayatkan oleh orang-orang yang dapat dipercaya, atau atas dukungannya.Dari berbagai cara, kecuali melalui belajar, Al-Tabarani menyadari sama sekali, bahkan jika Hadits adalah saksi, atau banyak bukti, dan ini berarti bahwa itu tidak menghitung bukti dalam penghakiman Hadis itu benar dan lemah, dan menunjukkan bahwa konsep keanehan absolut adalah dalam arti lemah. Dari cara dia meriwayatkannya, dan itu berbeda dengan konsep kaum modernis sejak kemunculan, bahkan sampai hari ini.
Interview with Essam Younis
No full textفي هذه المقابلة، يتحدث عصام يونس، مدير مركز الميزان لحقوق الإنسان في قطاع غزة الفلسطيني، عن سياسات رئيس الوزراء الإسرائيلي إيهود باراك وأية اتفاقات سلام مستقبلية مع الفلسطينيين. أجرت المقابلة إيمان رافع.In this interview, Essam Younis, director of the Palestinian Al-Mezan Center for Human Rights, speaks about Israeli Premier Ehud Barak's term and prospects for a peace agreement. The interview was conducted by Iman Rafi
Interview with Essam El Shalaby
No full textمقابلة مع وكيل وزارة النفط ورئيس شركة البترول الوطنية العراقية، الدكتورعصام الشلبى، يناقش فيها حجم إنتاج وتصدير البترول العراقي، كما يتحدث عن القضايا الرئيسية المرتبطة بظروف الحرب وتأثيرها علي إنتاج وتسويق البترول العراقي . أجرى المقابلة إبراهيم عابدين.An interview with Undersecretary of the Ministry of Oil and the President of the Iraqi National Petroleum Company, Dr. Issam Al-Shalabi (Essam El-Shalaby), in which he discusses the Iraqi oil production, the war and its impact on Iraqi oil production and marketing. The interview was conducted by Ibrahim Abdeen
Qilādat al-jawāhir fī dhikr al-Ghawth al-Rifāʻī wa-atbāʻih al-akābir
No full textA book on Sufism on the Rifa'i way, in which the author collects virtues, conditions, dignity, sayings, behavior, method, and the realizations of the truth of Sheikh Ahmed Muhyi al-Din Abu al-Abbas al-Kabeer al-Rifa'i. Furthermore, the user talked about the widespread support he receives from his followers and the key aspects of his method
Landmarks of Terminological and Conceptual Renewal in Yūsuf al-Qaraḍāwī (Renewal, Jurisprudence, and the Umma)
No full textأهداف البحث: اشترع العلامة القرضاوي معالم وصوًى لتجديد المفاهيم والمصطلحات في عالم الوعي ومساحة السعي؛ تأصيلًا للتصورات وتنزيلًا للتصرفات، محتكمًا إلى منهجية علمية تستقرئ سياقات اللغة وتطورها التاريخي، وتستوعب نصوص الوحيين، واستعمالات التراث، وتستصحب مقاصد الشارع، وغايات الواضع، وتستجيب لإشكالات الواقع، وتستشرف تحديات المستقبل.
فهدفت هذه الدراسة إلى بيان منهج القرضاوي في تجديد ثلاثة مفاهيم ومصطلحات، وهي: (التجديد، الأمة، الفقه)، ولتسليط الضوء على معانيها وآفاق تجديدها بنهج وسطي واستيعاب شمولي ونظر إبداعي؛ لينسج الباحثون والعلماء على ذات المنوال ويضيفون في هذه المسارات، استنادا إلى هذا المنهج الرحيب.
منهج الدراسة: اعتمدت الدراسة على المنهج الاستقرائي لتراث القرضاوي وكتبه ومحاضراته، والمنهج التحليلي لها.
النتائج: أبرز البحث منهج التجديد عند القرضاوي في المفاهيم، وبين محدداته ومعالمه، كما كشفت الدراسة شدة اهتمام الشيخ بحقل المفاهيم والمصطلحات تأصيلًا وتنزيلًا، ونقدًا وتجديدًا.
أصالة البحث: تحفل المكتبة الإسلامية بكتابات القرضاوي كما أن الكتابات والدراسات المتعلقة بفقهه ومشروعه الفكري تكاد تفوت الحصر، غير أن هذه الدراسة تركز على موضوع المفاهيم والمصطلحات، وتتخصص في مفاهيم نموذجية اشتغل عليها القرضاوي في مختلف مصنفاته، وتحليل منهج التجديد فيها.Objectives: Al-Qaraḍāwī established principles and guidelines for modernizing concepts and terminology, with the goal of fostering their sound understanding and effective application. His approach follows a systematic method that considers the context and historical development of language. He incorporates insights from the Qur’an and the Sunna, references traditional usage, and keeps the goals of the Sharia and the intentions of the lawgiver in mind. His methodology is responsive to current issues and looks ahead to future challenges. This study seeks to explore al-Qaraḍāwī’s approach to renewing three key concepts: ‘renewal’, ‘umma’ (the Islamic community), and ‘jurisprudence’. It aims to clarify their meanings and the potential for their renewal through a balanced approach that values both depth and creativity. The study intends to offer a model that researchers and scholars can use to further develop and expand these areas within an inclusive framework.Methodology: This study relies on an inductive approach to explore al-Qaraḍāwī’s legacy, including his books and lectures, as well as an analytical approach to examining these sources.Results: The article highlights al-Qaraḍāwī’s approach to renewal in conceptual terms, outlining its guidelines and characteristics. It also reveals his deep focus on terminology, emphasising foundational understanding, practical application, as well as critique and renewal.Originality: Although there is a wealth of Islamic scholarship on al-Qaraḍāwī’s jurisprudential and intellectual work, this study focuses on his approach to concepts and terminology. It examines crucial ideas he developed in his writings and how he approached updating them
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