Tailoring optical absorption in silicon nanostructures from UV to visible light: A TDDFT study حسب Hassan, Walid M.I.

"…Our main findings are that: (i) The oscillator strength as a function of length is quadratic at small lengths, and then increases linearly. …"
احصل على النص الكامل
احصل على النص الكامل

Preparation and characterization of wollastonite/titanium oxide nanofiber bioceramic composite as a future implant material حسب Aly, Ibrahim H.M.

"…While porosity and water adsorption capacity decreased with increasing the metal oxide nanofibers with a considerable impact for the sintering temperature in both properties. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Turning point in COVID-19 severity and fatality during the pandemic: a national cohort study in Qatar حسب Chemaitelly, Hiam

"…The post-first omicron phase saw a drastic drop to 0.10 (95% CI 0.08 to 0.14) per 1000 person years, a 95.4% reduction. …"
احصل على النص الكامل
احصل على النص الكامل

Flow and heat transfer analysis of Jeffery nano fluid impinging obliquely over a stretched plate حسب Mehmood, Rashid

"…Consequential highly non-linear system of differential equations is solved numerically through mid-point integration as a basic scheme along with Richardson's extrapolation as an enhancement scheme and analytical results are also obtained using optimal homotopy analysis Method (OHAM). …"
احصل على النص الكامل
احصل على النص الكامل

A global multiregional life cycle sustainability assessment of national energy production scenarios until 2050 حسب Kucukvar M.

"…The results showed that in comparison of BAU with RED scenario, GHG emissions associated would be 84% less in RED, wages will be 23% less and taxes would decrease by 22.4% under RED plan by 2050. In addition, energy sources responsible for the highest GHG emissions per kilowatt-hour of electricity produced are found as biomass, coal, waste and oil. …"
احصل على النص الكامل
احصل على النص الكامل

Environment Degradation and Economic Growth in the Qatar Economy: Evidence from a Markov Switching Equilibrium Correction Model حسب Charfeddine, Lanouar

"…First, empirical studies show that the results in term of positive and negative relationships as well as in term of magnitude differ significantly for the same country depend on the specification studied, linear, quadratic or cubic. Moreover, the inclusion of other factors in the right hand of the regression such as urbanization, trade openness, financial development and political stability have a significant impact on the magnitude of the income per capita variables coefficients. …"
احصل على النص الكامل
احصل على النص الكامل

Relationship between the heart rate and E/A ratio in athletic and non-athletic males in different ages حسب Kneffel, Zsuzsanna

"…Relationship between E/A and resting heart rate (HR), was determined by linear regression analysis. …"
احصل على النص الكامل

The Economic Impact of Optimizing a COVID-19 Management Protocol in Pre-Existing Cardiovascular Disease Patients حسب Dina, Abushanab

"…This study answers the question of whether the health care costs of managing COVID-19 in preexisting cardiovascular diseases (CVD) patients increased or decreased as a consequence of evidence-based efforts to optimize the initial COVID-19 management protocol in a CVD group of patients. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Changing Trends in the Referral and Timing of Treatment for Congenital Cryptorchidism: A Single-Center Experience from Bosnia and Herzegovina. حسب Zvizdic, Zlatan

"…The analysis of the observed two periods (2008-2010 and 2015-2017) showed a statistically significant decrease in the mean referral age and the mean age at surgery over the last 5 years (2015-2017) (p = 0.007 and p = 0.003, respectively). …"
احصل على النص الكامل
احصل على النص الكامل

Regional Difference in the Association between the Trajectory of Selenium Intake and Hypertension: A 20-Year Cohort Study. حسب Xie, Changxiao

"…The latent class modeling method was used to identify trajectory groups of selenium intake. A total of 4039 respondents developed hypertension. …"
احصل على النص الكامل
احصل على النص الكامل

High-quality and anti-inflammatory diets and a healthy lifestyle are associated with lower sleep apnea risk حسب Melaku, Yohannes Adama

"…There was a significant interaction between healthy lifestyle and sex with sleep apnea risk (P for interaction = .049) whereby females with higher healthy lifestyle scores had a lower risk of sleep apnea compared to males. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Exchange counterion in polycationic hydrogels: Tunability of hydrophobicity, water state, and floating capability for a floating ph device حسب Danko, Martin

"…The kinetics of the exchange showed that the fast exchange (within 4 h) of PFO allowed for a favorable coordination for ion pairing, resulting in a decrease in hydration. …"
احصل على النص الكامل
احصل على النص الكامل

A control algorithm to increase the efficient operation of wind energy conversion systems under extreme wind conditions حسب Jargalsaikhan, Nyam

"…This paper aims to increase the power production of gearless permanent magnet synchronous generator (PMSG) based wind energy conversion systems (WECS) in strong (greater than 25 m/s) wind speed regions. In general, most wind turbines cut off when wind speed is over the cut-out rate; as a result, the power generation of the wind farm decreases. …"
احصل على النص الكامل
احصل على النص الكامل

Association Between Serum Bicarbonate Levels and Prediabetes and Subclinical Inflammation in Young Healthy Adults: A Cross-sectional Study حسب Omar, Abeer A.

"…Similarly, after multivariable linear regression, a unit increase in serum bicarbonate was associated with a 0.18 unit decrease in MHR (beta −0.18, 95%CI: −0.29, −0.07, p=0.002), again with no association observed in females. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

A techno-economic-environmental study evaluating the potential of oxygen-steam biomass gasification for the generation of value-added products حسب AlNouss A.

"…The production of renewable chemicals and fuels is driving modern society towards a type of sustainable development which involves a decreasing dependency on fossil fuels and the minimisation of waste. …"
احصل على النص الكامل
احصل على النص الكامل

The effect of density in larval rearing of the pullet carpet shell Venerupis corrugata (Gmelin, 1791) in a recirculating aquaculture system حسب Joaquim, S.

"…The larval growth was not affected by the initial density until 40 larvae per mL, however, 200 larvae per mL decreased the larval growth in length nearly 54 μm. …"
احصل على النص الكامل
احصل على النص الكامل

RIGOROUS SIMULATION AND OPTIMIZATION OF THE COLD SECTION IN A REAL LNG PLANT: UPFRONT NITROGEN REMOVAL AS PROCESS ENHANCING CONCEPT حسب MKACHER, HAJER

"…Qatar, as one of the largest LNG exporters with a 22% global share, announced in 2020 a plan to increase the production capacity by more than 60% over the next five years. …"
احصل على النص الكامل

Cobalt phthalocyanine as a novel molecular recognition reagent for batch and flow injection potentiometric and spectrophotometric determination of anionic surfactants حسب El-Nemma, Eman M.

"…The spectrophotometric method is based on the use of [Co(II)Pc] solution in dimethylsulfoxide (DMSO) as a chromogenic reagent. The maximum absorption of the reagent at 658 nm linearly decreases with the increase of anionic surfactant over the concentration range 2–30 μg mL−1. …"
احصل على النص الكامل
احصل على النص الكامل

Clinical characteristics and outcome of children with acute cryptorchid testicular torsion: A single-center, retrospective case series study حسب Zvizdic, Zlatan

"…A physical examination of the external genitalia and inguinal regions should be mandatory to attain a proper diagnosis and treatment without delay.…"
احصل على النص الكامل
احصل على النص الكامل

MODEL PREDICTIVE CONTROL STRATEGY FOR LEAKAGE CURRENT REDUCTION IN PHOTOVOLTAIC SYSTEMS: A STUDY ON PUC AND CSC INVERTER TOPOLOGIES حسب ABU-HUMAID, AHMED TEYSEER JABER

"…In the case of a CSC inverter, it decreases from 360 mA to 140 mA, which is below 300 mA as per the DIN VDE 0126-1-1 standard. …"
احصل على النص الكامل