Performance analysis of a small-scale Orthopter-type Vertical Axis Wind Turbine حسب ElCheikh, A.

"…Wind tunnel experiments were carried out to measure the torque of two-, three, and four-bladed turbine, each at a set of different wind speeds and blade aspect ratios. Increasing solidity was achieved by either decreasing the blade aspect ratio or increasing the number of blades, both resulting in a higher peak power coefficient (Cp,max) of the VAWT. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Quantitative Compressibility Effects in Thermal Elastohydrodynamic Circular Contacts حسب Habchi, W.

"…The results reconfirm the well-known observations that minimum film thickness is very little affected by lubricant compressibility while central film thickness decreases linearly with the increase in volume compression of the lubricant. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Effects of natural organic matter on aggregation kinetics of boron nanoparticles in monovalent and divalent electrolytes حسب Liu, Xuyang

"…However, the attachment efficiency kept increasing in the presence of CaCl2 and alginate with the increase in the electrolyte concentration and was greater than unity at >4 mM CaCl2. The destabilization was attributed to bridging of the nanoparticles by the alginate–Ca2+ system. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Optimum sizing of steam turbines for concentrated solar power plants حسب Poullikkas, Andreas

"…Finally, although the cost of electricity of a CSP plant with capacities greater than 1MWe is significantly reduced to less than 1US$/kWh, currently such technology can only become economically viable through supporting schemes.…"
احصل على النص الكامل

Influence of temperature on tire-pavement noise in hot climates: Qatar case حسب Okan, Sirin

"…However, no clear dependence on the temperature coefficient on the vehicle’s speed is observed in this study.…"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Assessment of High-resolution Local Emissions and Land-use in Air Quality Forecasting at an Urban, Coastal, Desert Environment حسب Christos Fountoukis (4722963)

"…The model’s forecast accuracy was assessed against measurement data from five ground air quality monitoring stations in the greater metropolitan area of Doha over a one-month period. …"

The Effects of Online Formative and Summative Assessment on Test Anxiety and Performance: A Study Among First-Year Undergraduate Students at A Higher Education Institution in Abu D... حسب ALSUWAIDI, MUNA

"…The presented study was conducted to provide greater insight into the potential positive, neutral and/or negative effects of online formative and summative assessment on test anxiety and performance. …"
احصل على النص الكامل

Assessing the Built Environment’s Reflectivity, Flexibility, Resourcefulness, and Rapidity Resilience Qualities against Climate Change Impacts from the Perspective of Different Sta... حسب Mohammed M. Al-Humaiqani (18325554)

"…<p dir="ltr">The frequency and severity of climate change are projected to increase, leading to more disasters, increased built environment system (BES) vulnerability, and decreased coping capacity. Achieving resilience objectives in the built environment is challenging and requires the collaboration of all relevant sectors and professionals. …"

Influence of temperature on tire-pavement noise in hot climates: Qatar case حسب Okan Sirin (14603304)

"…There is an apparent trend of decreasing temperature coefficient with increasing mean texture depth of dense graded asphalt pavements. …"

Acute intense fatigue does not modify the effect of EVA and TPU custom foot orthoses on running mechanics, running economy and perceived comfort حسب Ken Van Alsenoy (14150559)

"…Eighteen well-trained, males ran on an instrumented treadmill for 6 min at the speed corresponding to their first ventilatory threshold (13.8 ± 1.1 km/h) in three footwear conditions (CON, EVA, and TPU). …"

Dynamic Analysis of Flexible Mechanisms with Clearance حسب Ahmedalbashir, Mona Abdullah Hassan

احصل على النص الكامل

Novel paclitaxel formulations solubilized by parenteral nutrition nanoemulsions for application against glioma cell lines حسب Najlah, Mohammad

"…The zeta potential of linoleic had a greater negative value than that of Intralipid.Loading efficiencies for paclitaxel were 70.4–80.2% and 44.2–57.4% for Clinoleic and Intralipid formulations, respectively. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Effect of the stretch rate during uniaxial testing on the mechanical properties of prolene حسب Ammouri, A.H.

"…For extension (%) at peak load, a decreasing trend was found vs. stretch rate (R2 = 0.81; two-tailed p value = 0.037) where increasing the displacement rate from 1 mm/min to 500 mm/min corresponds to a 22% decrease in the relative elongation of the mesh. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Expanding the donor pool حسب Ramos, Emilio

"…In 1990, one-year graft survival rates were about 70%; by 2000, they were greater than 90% (United States Renal Data System, 2001). …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Phase II National Study: Job Satisfaction and Workplace Environment Among Community Pharmacists in Lebanon: Pre and Post Economic Crisis حسب Salaheddin, Amira Talaat

"…Average weekly working hours decreased from 59.2 hours in Phase 1 to 49.8 hours in Phase II. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Driving and hypoglycemia حسب Stephen Beer (5480411)

"…Hypoglycemia has been associated with cardiac arrhythmia, a decreased ability to drive and driving mishap. Recent meta-analysis of 15 studies showed a risk road traffic collisions (RTC) of 12-19% greater than general populations. …"

A Case Study to Identify the Hindrances to Widespread Adoption of Electric Vehicles in Qatar حسب Amith Khandakar (14151981)

"…<p dir="ltr">The adoption of electric vehicles (EVs) have proven to be a crucial factor to decreasing the emission of greenhouse gases (GHG) into the atmosphere. …"

Understanding the phenomenon of saltwater intrusion sourced from desalination plants at coastal aquifers حسب Farhat Abbas (5480)

"…Column Peclet numbers from the two analyses were identical for potassium ions but those for bromide ions were c. 60% greater from the two-region model than from the convective–diffusion equation. …"

Part II.: Dissimilar friction stir welding of nickel titanium shape memory alloy to stainless steel – microstructure, mechanical and corrosion behavior حسب Parker West (17268946)

"…<p dir="ltr">In the present work, nickel-titanium (NiTi) shape memory alloys (SMAs) is joined to 304 stainless steel (SS) using friction stir welding (FSW) using process parameters of 400 rpm and a constant tool translation speed of 75 mm/min. The macrostructure of the dissimilar weld showed some surface tunneling defects but there were regions of the weld that were defect free and without evidence of intermetallics at the interface. …"

Deep Learning for Dynamic Wildlife Monitoring: A Real-Time Approach حسب Abdul Basit Mughal (22929001)

"…The parameters of the fine-tuned YOLOv11 decreased by 30% relative to the previous version, resulting in a very small model size of 5.5 MB and reduced processing time. …"