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Now showing items 2201-2210 of 8687
An investigation into the efficiency of silicon carbide based power inverters
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Conference Paper)
In this work, a study of a silicon carbide power modules in power inverter is presented. Voltage/Current/power and switching energy loss characteristics based on experimental data are detailed. A comparative study of total ...
Extreme 15N Depletion in Seagrasses
(
Springer New York LLC
, 2016 , Article)
Seagrass beds form an important part of the coastal ecosystem in many parts of the world but are very sensitive to anthropogenic nutrient increases. In the last decades, stable isotopes have been used as tracers of ...
A Senior Project-Based Multiphase Motor Drive System Development
(
Institute of Electrical and Electronics Engineers Inc.
, 2016 , Article)
Adjustable-speed drives based on multiphase motors are of significant interest for safety-critical applications that necessitate wide fault-tolerant capabilities and high system reliability. Although multiphase machines ...
Diversity-productivity dependent resistance of an alpine plant community to different climate change scenarios
(
Springer Tokyo
, 2016 , Article)
Here we report from a experiment imposing different warming scenarios [control with ambient temperature, constant level of moderate warming for 3�years, stepwise increase in warming for 3�years, and one season of high level ...
Tag-based personalized recommendation in social media services
(
Springer New York LLC
, 2016 , Article)
Users of ambient intelligence environments have been overwhelmed by the huge numbers of social media available, thus identifying the social media tailored to the user?s need is becoming an important question to be discussed. ...
Design, synthesis and applications of core-shell, hollow core, and nanorattle multifunctional nanostructures
(
Royal Society of Chemistry
, 2016 , Article Review)
With the evolution of nanoscience and nanotechnology, studies have been focused on manipulating nanoparticle properties through the control of their size, composition, and morphology. As nanomaterial research has progressed, ...
السنة الكفائية وأثرها في رعاية مقاصد الشريعة
(
كلية الدعوة الإسلامية بالقاهرة - جامعة الأزهر
, 2017 , Article)
لما کان موضوع الفرض الکفائي له أهمية کبيرة في حياة المسلمين؛ لأنه يتعلق بجانب عملي تدعو الحاجة إلى تعلمه والتفقه فيه، ووقوع بعض اللبس عند البعض بين فرض الکفاية والسنة الکفائية، فقد جاء هذا البحث لإلقاء الضوء على هذا الجانب ...
إشكاليات منهجية في الدراسات الغربية لعلم مقارنة الأديان
(
ASJP
, 2017 , Article)
شكَّلت الحضارة الغربية المعاصرة نقلة إنسانية غير معهودة في ميدان التطور المادي والتقدم التقني المميز، والإقلاع بمستوى العلوم الطبيعية إلى درجات عليا اكتشافا وتسخيرا، وهي الظاهرة التي خلفت قدرا كبيرا من الافتتان والإعجاب ...
Text-Independent Speaker Identification Using Vowel Formants
(
Springer New York LLC
, 2016 , Article)
Automatic speaker identification has become a challenging research problem due to its wide variety of applications. Neural networks and audio-visual identification systems can be very powerful, but they have limitations ...
Three-wire bipolar high-voltage direct current line using an existing single-circuit high-voltage alternating current line for integrating renewable energy sources in multiterminal DC networks
(
Institution of Engineering and Technology
, 2016 , Article)
When compared with conventional point-To-point high-voltage direct current (HVDC) systems, multiterminal HVDC (MTDC) systems are more economical and flexible. MTDC systems can tie distributed high power renewable energy ...