Natural aging of shape stabilized phase change materials based on paraffin wax حسب Krupa, Igor

"…The addition of 15 wt% of EG to shape stabilized phase change materials (SSPCMs) containing 50 wt% of wax caused a decreasing in the leakage of wax by 50% over 210 days of natural aging. …"
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

احصل على النص الكامل
احصل على النص الكامل

Investigation of the rheological properties of nanosilica-reinforced polyacrylamide/polyethyleneimine gels for wellbore strengthening at high reservoir temperatures حسب Shamlooh M.

"…The strongest gel was formed with the addition of 2 wt % of 50 nm silica to the polymer base solution which enhanced the gel strength by more than 300%. …"
احصل على النص الكامل
احصل على النص الكامل

Microstructure, wear and corrosion characteristics of Cu matrix reinforced SiC–graphite hybrid composites حسب Jamwal A.

"…Copper matrix composites with SiC-graphite reinforcement (0, 2.5,5, 7.5 and 10 wt.%) were prepared by stir casting process. …"
احصل على النص الكامل
احصل على النص الكامل

Effects of Combined Calcium Hypochlorite and Chlorine Dioxide on Drinking Water Quality in Qatar and Disinfection by Products Formation حسب Mohamed, Elsamoul H.

احصل على النص الكامل
احصل على النص الكامل

Conversion of Organic Municipal Wastes into Biochars and their Effect on Fertility Parameters of Normal and Sabkha Soils of Qatar حسب Ahmedna, Mohamed

"…To each pot, sufficient amount of 0.25-mm sieved biochar was mixed with soil to yield carbon to soil ratios of 0, 1, and 2% (wt/wt). Box-Behnken experimental design was used instead of the full factorial to decrease the number of treatments to a manageable level (126 treatments) with three replications at the center. …"
احصل على النص الكامل
احصل على النص الكامل

Influence of nitrogen doping on the electrocatalytic activity of Ni-incorporated carbon nanofibers toward urea oxidation حسب Barakat, Nasser A.M.

"…However, the electrochemical measurements indicated that the content of the urea in the initial electrospun solution should be optimized as the results showed that the best nickel surface activation as well as the maximum observed current density can be achieved when the urea content is kept at 5 wt%. Typically, the observed current densities using 1.0 M urea (in 1 M KOH) were 3.15, 29.7, 13.75, 47.55, 14.13 and 9.85 mA/cm2 for the nanofibers obtained from electrospun solutions having 0, 1, 2, 5, 7 and 9 wt% urea, respectively. …"
احصل على النص الكامل
احصل على النص الكامل

Synthesis of High-Antifouling and Antibacterial Ultrafiltration Membranes Incorporating Low Concentrations of Graphene Oxide حسب Alkhouzaam, Abedalkader Ibraheem

"…The pure water permeability (PWP) decreased with loadings of GO from 181.7 L.m-2.h-1.bar-1 of pure PSF to 181.1 and 167.4 L.m-2.h-1.bar-1 with 0.02 and 0.1 wt.% GO respectively. …"
احصل على النص الكامل
احصل على النص الكامل

Isothermal crystallization kinetics and morphology of double crystalline PCL/PBS blends mixed with a polycarbonate/MWCNTs masterbatch حسب Gumede T.P.

"…For the nanocomposites, there was a decrease in Tc values. This was attributed to a competition between two effects: (1) The partial miscibility of the PC-rich and the PCL-rich and PBS-rich phases, and (2) the nucleation effect of the MWCNTs. …"
احصل على النص الكامل
احصل على النص الكامل

Deoxygenation of pyrolysis vapour derived from durian shell using catalysts prepared from industrial wastes rich in Ca, Fe, Si and Al حسب Tan, Y.L.

"…With same silica-to-alumina ratio, catalyst prepared from oil palm ash (AS-OPA) with lower Fe and Ca contents gave higher liquid yield (8.32 wt%) with alcohols (28.90%), hydrocarbons (46.00%), and nitrogen-containing compounds (21.46%) while catalyst prepared from electric arc furnace slag (AS-EAF) with higher Fe and Ca contents produced lower liquid yield (50.21 wt%) with high amount of esters (25.80%) and hydrocarbons (72.82%). …"
احصل على النص الكامل
احصل على النص الكامل

A lipidomic screen of hyperglycemia-treated HRECs links 12/15-Lipoxygenase to microvascular dysfunction during diabetic retinopathy via NADPH oxidase حسب Ibrahim, Ahmed S.

"…Fluorescein angiography and retinal albumin leakage showed a significant decrease in retinal hyperpermeability in streptozotocin-induced diabetic mice lacking 12/15-LOX compared with diabetic WT mice. …"
احصل على النص الكامل
احصل على النص الكامل

Propagation rate coefficient for sulfobetaine monomers by PLP-SEC حسب Lacík, Igor

"…The kp values are determined in aqueous solutions for monomer concentrations between 5 and 50 wt % and temperatures between 15 and 80 °C. The propagation rate for SBE is by about a factor of two higher than that for SBAm. …"
احصل على النص الكامل
احصل على النص الكامل

Date palm wood flour/glass fibre reinforced hybrid composites of recycled polypropylene: Mechanical and thermal properties حسب AlMaadeed, Mariam A.

"…Addition of as little 5wt% glass fibre to wood flour reinforced RPP increases the tensile strength by about 18% relative to the wood flour reinforcement alone. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Effect Of The Apical Ectodermal Ridge On Mitotic Index In Hind Limb Bud Mesenchyme In Bufo Regularis حسب Abdel Karim, Ahmed E.

"…The operated bud (80% of cases) showed a decrease in its volume and there was no significant difference in mesenchyme MI. …"
احصل على النص الكامل

Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) حسب Connor, Izumi

"…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Excess pCO2 and carbonate system geochemistry in surface seawater of the exclusive economic zone of Qatar (Arabian Gulf) حسب Connor, Izumi

"…The slope suggests that removal of C as CaCO3, organic matter (CH2O) or gas exchange (FCO2) is occurring with a ratio of ΔCaCO3/(ΔCH2O or FCO2) = 1:2.86. The tracer Alk*, defined as the deviation of potential alkalinity (AP) (where AP = TA + 1.26 [NO3]) from conservative potential alkalinity ((ApC), (ApC = S Ap′S′ where A'P and S′ are mean values for the whole surface ocean) has values primarily determined by CaCO3 precipitation and dissolution. …"
احصل على النص الكامل
احصل على النص الكامل
احصل على النص الكامل

Artificial weathering and accelerated heat aging studies on low-density polyethylene (Ldpe) produced via autoclave and tubular process technologies حسب Luyt, A. S.

"…Oligomeric or high molecular weight hindered amine light stabilizer (HALS), and two UV absorbers of benzophenone or hydroxyphenyl-triazine types were equally introduced to both the LDPE grades at a total content of 0.2 wt%. …"
احصل على النص الكامل
احصل على النص الكامل

Study of performance, combustion, and emissions parameters of DI-diesel engine fueled with algae biodiesel/diesel/n-pentane blends حسب Elkelawy, Medhat

"…Through performance tests, it was found that 15 ml of n-pentane per liter was the best addition as it caused an increase in the brake thermal efficiency of 7.1% and a decrease in brake specific fuel consumption of 6.4% compared to the elegant B50. …"
احصل على النص الكامل
احصل على النص الكامل

Uncovering the Epigenetic Contribution of Protein Arginine Methyltransferase 5 (PRMT5) during Zebrafish Cardiomyogenesis حسب Zakaria, Zain Zaki

"…This was accompanied by a moderate decrease in blood flow (20%), significantly higher decrease in general cardiac output (65%), and reduction in red blood cells count (50%). …"
احصل على النص الكامل

Phase change materials based on high-density polyethylene filled with microencapsulated paraffin wax حسب Krupa, Igor

"…A modified in situ polymerization microencapsulation procedure for the preparation of microcapsules with paraffin wax cores (43 wt.%) and melamine–formaldehyde resin shells having a uniform size distribution and a spherical shape with average diameters of approximately 15 μm was developed. …"
احصل على النص الكامل
احصل على النص الكامل