Results 71 to 80 of about 1,707 (181)

Structural, Optical, and Electrical Properties of Cu- and Br-doped In2O3 Thin Films Prepared by Ultrasonic Spray Pyrolysis

open access: yesDigest Journal of Nanomaterials and Biostructures
This study investigates the influence of cation (Cu2+) and anion (Br-) doping on the physical properties of indium oxide thin films to evaluate their potential for transparent conductive oxide (TCO) applications. Undoped, Cu2+-doped, and Br--doped indium
Kheira Bennaceur   +6 more
doaj   +1 more source

Understanding the Inhibition of Mild Steel Corrosion by dianiline Schiff bases: a DFT investigation.

open access: yesActa Chimica Slovenica, 2018
Quantum chemical calculations at DFT/B3LYP level of theory with 6-31G, 6-311G, and 6-311G(d,p) basis sets were done to correlate the inhibition of mild steel corrosion in 1 M H2SO4 by four dianiline Schiff bases namely N,N’-Bis(benzylidene)-4,4 ...
Salah Eddine Hachani   +3 more
doaj   +1 more source

Assessment Of Noise Pollution In The City Of Biskra, Algeria

open access: yes, 2017
{"references": ["Farhi, A. (2002). Biskra : de l'oasis \u00e0 la ville saharienne (Note). M\u00e9diterran\u00e9e, 99(3), 77-82.", "Zannin, P. H. T., Ferreira, A. M. C., & Szeremetta, B. (2006). Evaluation of noise pollution in urban parks. Environmental Monitoring and Assessment, 118(1-3), 423-433.", "Onder, S., & Kocbeker, Z.
Tallal Abdel Karim Bouzir   +2 more
openaire   +2 more sources

Experimental study of heat transfer and thermal performance with longitudinal fins of solar air heater

open access: yesJournal of Advanced Research, 2014
The thermal performance of a single pass solar air heater with five fins attached was investigated experimentally. Longitudinal fins were used inferior the absorber plate to increase the heat exchange and render the flow fluid in the channel uniform. The
Foued Chabane   +2 more
doaj   +1 more source

Evaluation of Sequential Chemical Treatments and Grafting on Date Palm Mesh Fiber: Surface Chemistry, Morphology, and Interfacial Performance

open access: yesJournal of Natural Fibers
Despite extensive studies on individual chemical treatments of date palm fibers, the combined and sequential effects of alkali, citric acid, silane, and methacrylic acid modifications on fiber powder surface chemistry and morphology remain insufficiently
Abbes Ouaar   +3 more
doaj   +1 more source

Germanium Gradient Optimization for High-Speed Silicon Germanium Hetero-Junction Bipolar Transistors

open access: yesAnnals of West University of Timisoara: Physics, 2019
The effect of germanium trapezoidal profile shape on the direct current (DC) current gain (βF), cut-off frequency (fT) and maximum oscillation frequency (fMAX) of silicon-germanium (SiGe) hetero-junction bipolar transistors (HBTs) has been investigated ...
Khadir Abdelkader   +2 more
doaj   +1 more source

Description of a new species of Liburnia from Biskra (Algeria)

open access: yesThe Entomologist's monthly magazine., 1874
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +3 more sources

An Intelligent Diagnosis and Fault Detection Model Based on Fuzzy Logic for Photovoltaic Panels

open access: yesProceedings
The growing significance of photovoltaic (PV) monitoring systems and diagnostic methodologies is evident in their role in enhancing the power generation, efficiency, and durability of photovoltaic systems.
Marah Bacha, Amel Terki, Rabiaa Houili
doaj   +1 more source

The reality of administrative empowerment in higher education institutions a case study of Biskra University

open access: yesالمجلة الدولية للأداء الاقتصادي, 2023
هدفت هذه الدراسة إلى التعرف على تصورات العمال الإداريين بكلیات جامعة بسكرة نحو واقع التمكین الإداري بأبعاده المختلفة، استخدم في التحليل الإحصائي للبيانات عدة أساليب منها مقاييس الإحصاء الوصفي واختبار للعينة الواحدة (One Sample T- test ) وخلصت الدراسة ...
Chaima MANSOURI   +3 more
doaj  

Biskra [PDF]

open access: yesEncyclopédie berbère, 1991
openaire   +1 more source

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