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السجلات المعروضة 71 -- 80 من 1290
ندوة عودة طالبان: التفاعلات والمآلات
(
جامعة قطر
, 2021 , Video)
أصل هذا الفيديو ندوة علمية نظَّمها مركز ابن خلدون للعلوم الإنسانيَّة والاجتماعيَّة بجامعة قطر يوم الإثنين الموافق 15 محرم، 1443هـ/ 23 أغسطس، 2021م بعنوان: "عودة طالبان: التفاعلات والمآلات"، وذلك عبر منصة ويبكس ( WebEx) ...
Continuous adsorptive removal of glimepiride using multi-walled carbon nanotubes in fixed-bed column.
(
Springer
, 2021 , Article)
Water pollution by emerging pollutants such as pharmaceutical and personal care products is one of today's biggest challenges. The presence of these emerging contaminants in water has raised increasing concern due to their ...
A new sustainable and novel hybrid solar chimney power plant design for power generation and seawater desalination
(
MDPI
, 2021 , Article)
This study presents a case study of a novel hybrid solar chimney power plant (HSCPP) design?s performance in the city of Doha, Qatar. The HSCPP construction is similar to the traditional solar chimney power plant (SCPP) ...
Desorption of chloramphenicol from ordered mesoporous carbon-alginate beads: Effects of operating parameters, and isotherm, kinetics, and regeneration studies
(
Elsevier Ltd
, 2021 , Article)
This study has investigated the desorption of an emerging contaminant, known as chloramphenicol (CPC), from ordered mesoporous carbon (OMC)-alginate beads. The effects of initial concentration, operating temperature, and ...
A Mobile Charging Algorithm Based on Multicharger Cooperation in Internet of Things
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
The Internet of Things (IoT) is a network of everything. In IoT, the charging problem of devices is an issue that needs urgent attention. Most previous studies about wireless charging algorithms are based on the ideal ...
Federated Deep Actor-Critic-Based Task Offloading in Air-Ground Electricity IoT
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Conference Paper)
The integration of air-ground electricity internet of things (AGE-IoT) and machine learning, enables flexible network coverage and intelligent task offloading. However, dynamics of AGE-IoT networks, incomplete information, ...
An Accurate Non-Pilot Scheme for Accelerated Trip of Distance Relay Zone-2 Faults
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
The delayed operation of distance relays zone-2 element for the faults at the end of the line is excessive. It reduces the fault clearing speed and therefore, is one of the main factors that can endanger power system ...
Factors influencing the vertical distribution of microplastics in the beach sediments around the Ras Rakan Island, Qatar
(
Springer
, 2021 , Article)
Microplastic (MP) pollution is an emerging environmental problem, particularly in the marine environment, and nations are concerned about this issue. In this study, an attempt has been made to investigate the vertical ...
The odds ratio is “portable” but not the relative risk: Time to do away with the log link in binomial regression
(
Elsevier
, 2021 , Article)
Objectives: In a recent paper we suggest that the relative risk (RR) be replaced with the odds ratio (OR) as the effect measure of choice in clinical epidemiology. In response, Chu, and colleagues raise several points that ...
Insight into the chemically modified crop straw adsorbents for the enhanced removal of water contaminants: A review
(
Elsevier B.V.
, 2021 , Article Review)
Crop straws represent the major part of lignocellulosic wastes that mainly consist of three polymeric components, namely cellulose, hemicellulose, and lignin. These straws gain great attention owing to their low cost, ...