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Now showing items 1371-1380 of 1404
Marine health of the Arabian Gulf: Drivers of pollution and assessment approaches focusing on desalination activities
(
Elsevier
, 2021 , Article Review)
The Arabian Gulf is one of the most adversely affected marine environments worldwide, which results from combined pollution drivers including climate change, oil and gas activities, and coastal anthropogenic disturbances. ...
عوائق النهضة: الاغتراب الزماني والمكاني
(
البصائر
, 2021 , Article)
من بين أهم عوائق النهضة، تلك الهزيمة النفسة التي تسكن كثيرا من صناع القرار وقادة المجتمع والفكر في بلداننا الإسلامية، أو ما يسميها ابن خلدون بولع المغلوب بتقليد الغالب، أو ما سماه مالك بن نبي القابلية للاستعمار. وما كان ...
Self-healing behavior of epoxy-based double-layer nanocomposite coatings modified with Zirconia nanoparticles
(
Elsevier
, 2021 , Article)
This work reports the self-healing behavior of epoxy-based double-layer nanocomposite coatings designed to mitigate corrosion in various industrial applications. Zirconia (ZrO2) nanoparticles were used as a carrier to load ...
Improving mechanical, thermal and damping properties of niti (Nitinol) reinforced aluminum nanocomposites
(
MDPI AG
, 2020 , Article)
In the present study, Ni50Ti50 (NiTi) particle reinforced aluminum nanocomposites were fabricated using microwave sintering and subsequently hot extrusion. The effect of NiTi (0, 0.5, 1.0, and 1.5 vol %) content on the ...
Modeling and piezoelectric analysis of nano energy harvesters
(
MDPI
, 2020 , Article)
The expedient way for the development of microelectromechanical systems (MEMS) based devices are based on two key steps. First, perform the simulation for the optimization of various parameters by using different simulation ...
مفهوم الحضارة: دراسة تحليلية مقارنة عابرة للثقافات
(
مركز فاعلون للبحث في الأنثروبولوجيا والعلوم الانسانية والاجتماعية
, 2021 , Article)
ملخص: تتمثل الإشكالية الأساس لهذا البحث في مفهوم الحضارة باعتباره مفهوما عابرا للثقافات مما جعله متعدد الدلالات مختلفا فيه بين الحقول المعرفية. لذلك تحاول هذه الدراسة تناول الحضارة باعتبارها مصطلحا له مجاله اللغوي، وباعتبارها ...
Modelling speed behaviour in rural highways: Safety analysis of driving under adverse road-weather conditions
(
PLOS
, 2021 , Article)
This study proposes a methodical approach to model desired speed distributions under different road-weather and traffic conditions followed by identification of road-weather conditions with potentially higher safety risks ...
Screening the growth inhibition mechanism of sulfate reducing bacteria by chitosan/lignosulfonate nanocomposite (CS@LS) in seawater media
(
Elsevier
, 2021 , Article)
Sulfate-reducing bacteria (SRBs) induced biofilm formation is a global industrial concern due to its role in the development of microbial-induced corrosion (MIC). Herein, we have developed a biodegradable chitosan/lignosulfonate ...
An experimental investigation of emission performance of heterogenous catalyst jatropha biodiesel using RSM
(
Elsevier Ltd
, 2021 , Article)
Tremendous growth in the number of automobiles in developed and developing global economies has exorbitantly boosted competition for petroleum products. Petroleum products derived from fossil fuels are predominantly ...
The Existing Initiatives to Establish Regional Security Arrangement in the Region Towards a Desirable Model
(
Gulf Studies center - College of Arts & Sciences - Qatar University
, 2021 , Conference Paper)
Security, stability, and cooperation are the missing links in our region. Over the last few decades, many attempts have been made to establish the security mechanism such as UNSCR 598, where requests UN Secretary- General ...