Search
Now showing items 1371-1380 of 1431
العوامل المؤثرة في ظاهرة انخفاض معدلات الخصوبة في دولة قطر
(
مجلس النشر العلمي - جامعة الكويت
, 2022 , Article)
هدف الدراسة: تهدف الدراسة إلى تعرف العوامل المؤثرة في انخفاض معدلات الخصوبة وعلاقتها بالسياسة السكانية والتحولات الديموغرافية في المجتمع القطري. المنهجية: استخدم في الدراسة المنهج الوصفي التحليلي المسحي، وبلغ عدد أفراد ...
Recent Advances in the Internet-of-Medical-Things (IoMT) Systems Security
(
Institute of Electrical and Electronics Engineers Inc.
, 2021 , Article)
The rapid evolutions in microcomputing, mini-hardware manufacturing, and machine-to-machine (M2M) communications have enabled novel Internet-of-Things (IoT) solutions to reshape many networking applications. Healthcare ...
Entrepreneurship in ethnic enterprises: The making of new immigrant businesses in New York
(
MDPI
, 2021 , Article)
Research on ethnic entrepreneurship has generated substantial literature on the development of ethnic businesses among different immigrant groups in North America. Such studies tend to focus on the emergence of immigrant ...
Seasonal variability of hydrography off the east coast of Qatar, central Arabian Gulf
(
Springer Nature
, 2022 , Article)
Seasonal variability of hydrography along a nearshore-offshore transect in the eastern part of the EEZ of Qatar has been analyzed using in situ measurements carried out during 5 different months. The study reveals distinct ...
Secure Vehicular Platoon Management against Sybil Attacks
(
MDPI
, 2022 , Article)
The capacity of highways has been an ever-present constraint in the 21st century, bringing about the issue of safety with greater likelihoods of traffic accidents occurring. Furthermore, recent global oil prices have ...
Safety Analysis of Merging Vehicles Based on the Speed Difference between on-Ramp and Following Mainstream Vehicles Using NGSIM Data
(
Multidisciplinary Digital Publishing Institute (MDPI)
, 2022 , Article)
Highway merging points are critical elements due to the interactions between merging vehicles and following vehicles on the outermost lane of the highway stream. Such interactions could have significant implications for ...
Nanoparticles: The Plant Saviour under Abiotic Stresses
(
MDPI
, 2022 , Article)
Climate change significantly affects plant growth and productivity by causing different biotic and abiotic stresses to plants. Among the different abiotic stresses, at the top of the list are salinity, drought, temperature ...
Impact of surface coating on electrochemical and thermal behaviors of a Li-rich Li1.2Ni0.16Mn0.56Co0.08O2 cathode
(
Royal Society of Chemistry
, 2020 , Article)
Lithium-rich layered oxide materials are considered as potential cathode materials for future high-performance lithium-ion batteries (LIBs) owing to their high operating voltage and relatively high specific capacity. ...
Mechanical and Electromagnetic Properties of Self-Compacted Geopolymer Concretes With Nano Silica and Steel Fiber Additives
(
Institute of Electrical and Electronics Engineers Inc. (IEEE)
, 2022 , Article)
Mechanical and electromagnetic properties (over 2-16 GHz) of self-compacted geopolymer concrete (SCGC) samples with different amounts of nanosilica (NS) and steel-fiber (SF) have been examined. From the mechanical tests, ...
Enhancing the UV/heat stability of LLDPE irrigation pipes via different stabilizer formulations
(
John Wiley and Sons Inc
, 2021 , Article)
Herein different stabilizer formulations of linear low-density polyethylene (LLDPE) against UV- and heat-initiated degradation are described. The project aims at outdoor applications, such as irrigation piping and profiles, ...