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السجلات المعروضة 81 -- 90 من 915
Contract and lyapunov optimization-based load scheduling and energy management for UAV charging stations
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Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
Nowadays, a large number of civilian unmanned aerial vehicles (UAVs) are increasingly being used in many of our daily applications. However, there are many kinds of UAVs that need to enhance their endurance due to their ...
Octadecyltrichlorosilane-Modified Superhydrophobic-Superoleophilic Stainless Steel Mesh for Oil-Water Separation
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John Wiley and Sons Inc
, 2021 , Article)
Recently, oil-water separation has become an important topic due to its increasing commercial demand. Here, in this study, a simple technique to prepare superhydrophobic-superoleophilic mesh for oil-water separation is ...
Investigation of Filter Cake Evolution in Carbonate Formation Using Polymer-Based Drilling Fluid
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American Chemical Society
, 2021 , Article)
Drilling fluid and filtrates invasion often alter the near-wellbore flow properties during overbalanced drilling. The utilization of polymeric gels to prevent drilling fluid loss reduces the risk of formation damage caused ...
Investigations of plastic contamination of seawater, marine and coastal sediments in the Russian seas: a review
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Springer
, 2021 , Article)
Twelve seas with an integral coastline length of about 38,000 km wash upon the Russian coasts. They belong to the basins of the Atlantic, the Arctic, and the Pacific Oceans and stretch over temperate, subpolar, and polar ...
Efficacy and Safety of Ibuprofen Plus Paracetamol in a Fixed-Dose Combination for Acute Postoperative Pain in Adults: Meta-Analysis and a Trial Sequential Analysis
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Springer
, 2021 , Article)
Background: Ibuprofen and paracetamol (acetaminophen) are very commonly used for analgesia and pain. In 2020, the US FDA gave its first approval of a fixed-dose combination (FDC) of the two drugs in the same tablet for ...
عوائق النهضة : الغرام بالأشكال أو الحرفية في الثقافة
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ليتفكروا
, 2021 , Article)
من العوائق التي تؤخر انطلاقتنا لتحقيق نهضة حضارية ما سماه مالك بن نبي "الحَرْفِيَّةُ في الثقافة" في كتابه (مشكلة الثقافة، ص75). وهو الكتاب الذي سعى فيه بن نبي إلى وضع نظرية في التغيير الثقافي لبناء وسط ثقافي يخرج المسلم ...
Spatio-temporal changes in water-related ecosystem services provision and trade-offs with food production
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Elsevier
, 2021 , Article)
A key challenge for sustainability is protecting water-related ecosystems and the services (WESs) they provide while enhancing food security. Food production usually drives land use change, which results in ecosystem ...
Mentoring approaches and opportunities for learning to teach: a comparative study of the practicum experience in Lebanon and China
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Taylor and Francis Group
, 2021 , Article)
We report a comparative qualitative study conducted in Lebanon and China on mentoring approaches, their compatibility with expectations, and their facilitation of learning opportunities. Data sources included interviews, ...
Effect of plasma treatment on accelerated pla degradation
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BME-PT and GTE
, 2021 , Article)
Poly(lactic acid) (PLA) has been found to be important in various applications, such as in the medical, pharma-ceutical, and packaging industries. However, the long-term associated degradation process of PLA is a limiting ...
A switched-capacitor multilevel inverter topology employing a novel variable structure nearest-level modulation
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John Wiley and Sons Ltd
, 2021 , Article)
This article introduces a nine-level switched-capacitor multilevel inverter with twice voltage boosting feature. It also aims at proposing a novel variable structure nearest-level modulation scheme that has been implemented ...