بدائل البحث:
11 decrease » _ decrease (توسيع البحث)
nn decrease » _ decrease (توسيع البحث)
a decrease » _ decrease (توسيع البحث), _ decreased (توسيع البحث), _ decreases (توسيع البحث)
10 11 » 10 12 (توسيع البحث)
11 decrease » _ decrease (توسيع البحث)
nn decrease » _ decrease (توسيع البحث)
a decrease » _ decrease (توسيع البحث), _ decreased (توسيع البحث), _ decreases (توسيع البحث)
10 11 » 10 12 (توسيع البحث)
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541
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542
Study of the effects of dust, relative humidity, and temperature on solar PV performance in Doha: Comparison between monocrystalline and amorphous PVS
منشور في 2013"…It was estimated that 100 days of dust accumulation over monocrystalline PV panels, caused the efficiency to decrease by around 10%. This limitation makes solar PVs to represent an unreliable source of power for unattended or remote devices and thus strongly suggests the challenge of cleaning the panel's surface regularly or injecting technical modifications. …"
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543
Improvement of both lipid and biomass productivities of Qatar Chlorocystis isolate for biodiesel production and food security
منشور في 2018"…Most previous research evidenced that the increase of the lipid content is accompanied by a decrease of the biomass production, which increases the cost of the downstream processing. …"
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544
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545
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546
Trends in prevalence of depression and anxiety symptoms and effects of sociodemographic variables before and after the first wave of COVID-19 in Qatar
منشور في 2022"…The data for 2020/21 showed a 35.1% and 29.2% decrease in depression and anxiety symptoms scores compared to pre-pandemic years (2017/2018) after adjusting for sociodemographic factors. …"
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547
Influence of shelf-life duration on mechanical, thermal and shape recovery motion derivatives of shape memory polyurethane
منشور في 2024"…In addition, Differential scanning calorimetry (DSC)exhibited a decrease in glass transition temperature (Tg) from S1 to S10, resulting in a corresponding reduction in the rate of shape restoration. …"
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548
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549
Mixed Solid Municipal Waste-Based Biochar for Soil Fertility and Greenhouse Gas Mitigation
منشور في 2016"…Municipal solid waste management is one of the major challenges facing Qatar with more than 2.5 million tons of municipal solid waste each year, a very high waste generation rate in a country with small land mass. …"
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550
Undrained interface shear strength of fine-grained soils for near-shore marine pipelines
منشور في 2020"…The peak and residual interface shear strengths for a variety of normally consolidated soils were measured using a torsional ring shear apparatus modified to suit soil and interface testing under the undrained condition, which is usually prevalent at soil-marine pipeline interfaces. …"
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551
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552
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553
An Overview of Solid Waste Management and Plastic Recycling in Qatar
منشور في 2012"…The analysis showed that Qatar produced around 2,000,000 tons of solid municipal waste annually, corresponding to a daily generation rate per capita of about 2. 5 kg. …"
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554
Enhanced quality factor of polyvinyl formal (PVF) based nanocomposites filled with zinc oxide and carbon black nanoparticles for wireless sensing applications
منشور في 2019"…The incorporation of ZnO at 10% decreases Q-factor to 36.1. Incorporation of CBNP at 5% and ZnO at 5% further reduces the Q-factor to 13.7. …"
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555
Development of pH-Controlled Aluminum-Based Polymeric Gel for Conformance Control in Sour Gas Reservoirs
منشور في 2020"…The results reveal that aluminum acetate, among the screened salts, has a controllable gelation time at pH conditions between 3.5 and 8.5 and is the most stable in the temperature range 25–100 °C. …"
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556
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557
Tobacco control in the Eastern Mediterranean region: implementation progress and persisting challenges
منشور في 2022"…Tobacco use is the leading cause of preventable mortality worldwide, projected to claim 1 billion lives in the twenty-first century.1 Tobacco prevalence rates are expected to decrease across all the WHO regions by 2025 as a result of tobacco control efforts. …"
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558
Acute and chronic toxicity assessments of 17β-estradiol (E2) and 17α-ethinylestradiol (EE2) on the calanoid copepod Acartia clausi: Effects on survival, development, sex-ratio and...
منشور في 2022"…Embryos showed non-monotonic dose-response and hatching success was significantly reduced at low realistic concentrations of E2 (0.005, 0.5, and 5 μg L-1) and EE2 (0.05 and 5 μg L-1).Survival, development and sex ratio of A. clausi to EE2 exposure at 1 and 100 μg L-1 were also determined during a life cycle experiment. …"
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559
Evacuated tube heat pipe solar collector for Encontech engine-driven reverse osmosis solar desalination
منشور في 2020"…Both energetic and exergetic efficiencies exhibit upper values at A co/A abs ratio up to 1. Further increment in this ratio up to 3 resulted in a decrease in the efficiency of the ETHPSC.…"
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560