Development of a stacked machine learning model to compute the capability of ZnO-based sensors for hydrogen detection حسب Behzad, Vaferi

"…This study proposes a stacked model by integrating Extra tree and XGBoost (eXtreme Gradient Boosting) regressor to precisely relate the sensitivity of the ZnO-based sensor to the nanocomposite's chemistry, H2 concentration, and temperature. The model's accuracy is superior to that of conventional artificial neural networks, achieving outstanding prediction results with mean absolute error (MAE) = 0.11, mean squared error (MSE) = 0.31, mean absolute percentage error (MAPE) = 1.14%, and R-squared (R2) = 0.9994 based on 208 actual sensor sensitivities. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Study the efficiency of Ultrasonic Technology in Removal of Algae from Surface Waters حسب Maarouf, Alaa

"…The dominant algae genus was identified using a light microscope, and ultrasound waves with a low frequency of 40 kHz and a power density of 0.024 W/cm³ were applied at different time intervals (0 – 80 minutes) at time intervals of 5 minutes. …"
احصل على النص الكامل

Magnetorheological damper with external excitation for more efficient control of vehicles? dynamics حسب Sassi S.

"…The experimental tests made on the first prototype featuring this new technology was promising. The excitation of a set of 12 coils surrounding the body of the damper, by an electric current of 5 A, managed to increase the damping coefficient by up to 75%. …"
احصل على النص الكامل
احصل على النص الكامل

Experimental investigation of the influence of grain geometry on residual NAPL using synchrotron microtomography حسب Al-Raoush, Riyadh I.

احصل على النص الكامل
احصل على النص الكامل

Heme Oxygenase Isoform 1 Regresses Cardiomyocyte Hypertrophy Through Regressing Sodium Proton Exchanger Isoform 1 Activity حسب Sobh, Ahmed

"…However, we did not see any changes in NHE1 protein expression following HO-1 induction. A trend towards decrease in cardiomyocyte hypertrophy was observed in H9c2 cardiomyoblasts infected with the active form of NHE1 following stimulation with HO-1 (NHE1, 154.93 ± 14.87 % vs. …"
احصل على النص الكامل
احصل على النص الكامل

Effect of mobile text messages on antiretroviral medication adherence and patient retention in early HIV care: An open-label, randomized, single center study in south Florida حسب Sherman, Elizabeth M.

"…A significant increase in CD4 cell count and a decrease in HIV RNA were found at study end, with no differences between the two groups. …"
احصل على النص الكامل
احصل على النص الكامل

Mechanical properties of gamma irradiated TiO2NPs/MWCNTs/LDPE hybrid nanocomposites حسب Zagho M.M.

"…Furthermore, the % of the total elongation at break is decreased after incorporating MWCNTs. The % of the total elongation at break after exposure to a dosage of 25 kGy was reduced as a result of chain scissions and molecular weight decrease. …"
احصل على النص الكامل
احصل على النص الكامل

High-Rate Anaerobic Digestion of Waste Activated Sludge by Integration of Electro-Fenton Process حسب Feki, Emna

"…Production of biogas was also found to improve during semi-continuous fermentation of EF-pretreated sludge conducted in a lab-scale reactor. In comparison to raw sludge, EF-pretreated sludge produced the highest biogas yield (0.81 L biogas/g VS) with a high COD removal rate, reaching 96.6% at an organic loading rate (OLR) of 2.5 g VS/L. d. …"
احصل على النص الكامل
احصل على النص الكامل

Variations in the temperature sensitivity of spring leaf phenology from 1978 to 2014 in Mudanjiang, China حسب Dai J.

"…Over the period 1978–2014, the mean ST of LUD for all plant species was − 3.2 ± 0.49 days °C−1. …"
احصل على النص الكامل
احصل على النص الكامل

Conceptual Framework for Planning Urban Roadside Vegetation to Enhance Air Quality for Roadside Users حسب Mogra, Soujanya

احصل على النص الكامل
احصل على النص الكامل

The Interference of Notch1 target Hes1 affects cell growth, differentiation and invasiveness of glioblastoma stem cells through modulation of multiple oncogenic targets حسب Cenciarelli, Carlo

"…Herein, we report that exposure to a Stat3/5 inhibitor, induced apoptosis either in shHes1-CSC or control cells. …"
احصل على النص الكامل

Food shopping, preparation and consumption practices in times of COVID-19: case of Lebanon حسب Ben Hassen, Tarek

"…Indeed, the study outcomes suggested (1) a move toward healthier diets; (2) a rise in the consumption of domestic products due to food safety concerns; (3) a change in the grocery shopping behaviors (with a rise in online shopping); (4) a surge of food stockpiling; and (5) a decrease in household food wastage. …"
احصل على النص الكامل
احصل على النص الكامل

Effect of Hyperglycemia on eNOS function in EPCs حسب Elshiekh, Duaa Ibnomer

"…Results showed that both acute and chronic hyperglycemia showed a trend towards decrease in phosphorylation of eNOS and Akt. …"
احصل على النص الكامل
احصل على النص الكامل

Numerical investigation of steady air injection flow to control rotating stall in centrifugal compressors حسب Halawa, Taher

"…Numerical model was built to simulate high speed transonic centrifugal compressor working at an operating point close to surge. Air was injected at 12 locations at the vaneless region between the impeller and the diffuser at shroud surface with 5 different injection angles and 3 different injection mass flow rates. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Linear hydrogen gas sensors based on bimetallic nanoclusters حسب Ayesh, Ahmad I.

احصل على النص الكامل
احصل على النص الكامل

Influence of anionic surface modifiers on the thermal stability and mechanical properties of layered double hydroxide/polypropylene nanocomposites حسب Yang, J.H.

"…Organo-layered double hydroxide/polypropylene (LDH/PP) nanocomposites were successfully synthesized via a solution blending method. As an attempt to improve the compatibility with hydrophobic PP, the LDH surface was modified by the incorporation of various anionic surfactants via electrostatic interaction with LDH cationic layers. …"
احصل على النص الكامل
احصل على النص الكامل

Assessment of SnO2 nanoparticles' impact on the growth of Picochlorum maculatum algae حسب Bounnit, Touria

"…To determine the effect of SnO2 nanoparticles on Picochlorum maculatum - isolated from a Qatar marine environment, algal growth media are amended with different nanoparticle concentrations (1, 5, 25, 50, and 100 mg L−1) and the culture was observed for 72 h. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Use Of Cement By-Pass Dust In Soil Stabilization حسب Taha, Ramzi

"…Mixtures were subjected to the following tests: (1) Atterberg limits, (2) pH, (3) compaction, (4) California Bearing Ratio (CBR), (5) swell percent, and (6) swell pressure. Results indicate that as cement by-pass dust content increases, the swell percent and maximum dry density decrease while the pH and CBR values tend to increase. …"
احصل على النص الكامل

Failure mode analysis for single-phase Multi-level qZSI interfacing PV system to utility grid حسب Rahman, Syed

"…The power deficit due to a failure of the module is reflected as a decrease in the grid current reference. …"
احصل على النص الكامل
احصل على النص الكامل

Enzymatic treatment of peanut butter to reduce the concentration of major peanut allergens حسب Yu, Jianmei

"…Treatment of peanut butter with a combination of trypsin and alpha-chymotrypsin resulted in a decrease in IgE-binding, suggesting that enzymatic treatment has the potential to reduce the allergenicity. …"
احصل على النص الكامل
احصل على النص الكامل