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Now showing items 4111-4120 of 8805
Design, fabrication, and characterization of low-power gas sensors based on organic-inorganic nano-composite
(
Elsevier B.V.
, 2017 , Article)
Low-power and selective H2S gas sensors based on tungsten oxide (WO3) nanoparticles (NPs) embedded in organic polymer membranes are presented in this study. WO3 NPs were synthesized using the sol-gel method. Polymer solutions ...
Braking effect of climate and topography on global change-induced upslope forest expansion
(
Springer New York LLC
, 2017 , Article)
Forests are expected to expand into alpine areas due to global climate change. It has recently been shown that temperature alone cannot realistically explain this process and that upslope tree advance in a warmer scenario ...
نماذج من مؤلفات علماء الهند في الرد على المنصرين
(
دار الثقافة العربية
, 2018 , Book chapter)
أبلى علماء الهند –بعد تسلط الإنجليز على بلادهم– بلاء حسنا في الرد على كتب المنصرين ضد الإسلام .
فقد تسلل بعض المنصرين للبنغال في العشرة الأخيرة من القرن الثامن عشر، وكان وليم
كاري William Carey من الجمعية المعمدانية ...
Inhibition of mild steel corrosion in CO2 and H2S-saturated acidic media by a new polyurea-based material
(
Wiley-VCH Verlag
, 2019 , Article)
Oil well acidizing is a common practice used to boost oil well productivity in the industry. This practice, however, exposes the mild steel components of the wells to extremely harsh corrosive environments. Under such ...
بيان أسماء القرآن وترتيب سوره والتعريف بآياته وحروفه
(
مركز صالح عبدالله كامل للاقتصاد الإسلامي - جامعة الأزهر
, 2017 , Article)
هدف البحث إلى بيان أسماء القرآن وترتيب سوره والتعريف بآياته وحروفه. وأوضح البحث أن الرسول صلي الله عليه وسلم حرص على أن تتحقق للقرآن الكريم أقصي درجات الحفظ والضبط، وكان يتخذ من أصحابه رضي الله عنهم كتاباً يكتبون القرآن ...
Stochastic model predictive tracking of piecewise constant references for LPV systems
(
Institution of Engineering and Technology
, 2017 , Article)
This study addresses a stochastic model predictive tracking problem for linear parameter-varying (LPV) systems described by affine parameter-dependent state-space representations and additive stochastic uncertainties. The ...
Dynamic Forces Induced by a Single Pedestrian: A Literature Review
(
American Society of Mechanical Engineers (ASME)
, 2017 , Article)
With the use of lighter construction materials, more slender architectural designs, and open floor plans resulting in low damping, vibration serviceability has become a dominant design criterion for structural engineers ...
A Nine-Phase Six-Terminal Concentrated Single-Layer Winding Layout for High-Power Medium-Voltage Induction Machines
(
Institute of Electrical and Electronics Engineers Inc.
, 2017 , Article)
This paper proposes a new winding layout for high-power medium-voltage nine-phase induction machines (IMs) based on a single-layer concentrated winding layout having a unity winding factor. The machine is fundamentally an ...
القانون الدولي الخاص : تنازع القوانين و الجنسية في القانون القطري
(
كلية القانون - جامعة قطر
, 2017 , Book)
لا بد للدراس قبل الدخول في دراسة القانون الدولي الخاص، أن يتعرف هذا الفرع من القانون، ونشأته وتطوره وموضوعاته، ومصادر قواعده، وعليه فسوف نعرض تاليا لهذه المسائل على الترتيب.
Assessment of first-grade students' literacy and numeracy levels and the influence of key factors
(
Society for Research and Knowledge Management
, 2019 , Article)
The acquisition of literacy and numeracy in early years education provides children with an essential skill for learning and life. This study aims to assess the literacy and numeracy skills of first-graders in Qatari ...