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decrease » increase (توسيع البحث)
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decrease » increase (توسيع البحث)
defined » designed (توسيع البحث)
times » time (توسيع البحث)
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Open carbon frameworks - a search for optimal geometry for hydrogen storage
منشور في 2013"…From an analysis of an analytical model and simulations of adsorption the physical limits of hydrogen adsorption have been defined: (i) higher storage capacities in slit-shaped pores can be obtained by fragmentation/truncation of graphene sheets into nano-metric elements which creates surface areas in excess of 2600 m2/g, the surface area for infinite graphene sheets; (ii) the positive influence of increasing surface area is compensated by the decreasing energy of adsorption in the carbon scaffolds of nano-metric sizes; (iii) for open carbon frameworks (OCF) built from coronene and benzene molecules with surface areas 6500 m2 g-1, we find an impressive excess adsorption of 75–110 g H2/kg C at 77 K, and high storage capacity of 110–150 g H2/kg C at 77 K and 100 bar; (iv) the new OCF, if synthesized and optimized, could lead to required hydrogen storage capacity for mobile applications.…"
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122
Adsorption in nanopores with finite pore walls from truncated graphene
منشور في 2011"…The most important factors defined by geometry are: the surface accessible for adsorption and the distribution of energy of adsorption. …"
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123
Forecast of the outbreak of COVID-19 using artificial neural network: Case study Qatar, Spain, and Italy
منشور في 2021"…The model sensitivity was analyzed using the root mean square error (RMSE), the mean absolute percentage error and the regression coefficient index R2, which yielded highly accurate values of the predicted correlation for the infected and dead cases of 0.99 for the dates considered. …"
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124
Storage allocation for diverse FPGA memory specifications
منشور في 2017احصل على النص الكامل
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127
Modeling the influence of daily temperature and precipitation extreme indices on vegetation dynamics in Katsina State using statistical downscaling model (SDM)
منشور في 2023"…The results indicate that the statistical downscaling model (SDSM) is performing satisfactorily in predicting maximum and minimum temperatures, along with precipitation, for the time horizon of the simulation. Mean precipitation of 1.98 mm (RCP2.6), 2.03 mm (RCP4.5), and 2.07 mm (RCP8.5) was revealed in the study area. …"
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128
A Numerical Study of Heat Transfer and Fluid Flow in a Channel with an Array of Pin Fins in Aligned and Staggered Configurations
منشور في 2018"…The fin array effectiveness, defined as the average Nusselt number to the aggregate pressure coefficient, for all fins in a single row in the streamwise direction, was shown to decrease in the direction of the flow. …"
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129
Investigating the impact of remittance outflows and oil price on economic growth in Gulf Cooperation Council countries
منشور في 2023"…This study utilizes the nonlinear augmented mean group method to explore the possible asymmetric impact of remittance outflows on economic growth in Gulf Cooperation Council (GCC) countries for the period of 2000–2019. …"
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130
Investigating the impact of remittance outflows and oil price on economic growth in Gulf Cooperation Council countries
منشور في 2023"…This study utilizes the nonlinear augmented mean group method to explore the possible asymmetric impact of remittance outflows on economic growth in Gulf Cooperation Council (GCC) countries for the period of 2000–2019. …"
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Food safety knowledge attitude and practices of oncology nurses, in Lebanese hospitals
منشور في 2023"…Knowledge scores were higher among nurses holding a graduate degree (mean = 85; p < 0.05), and those who attended a training course (mean = 79; p < 0.05). …"
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133
Nurses’ work environment and intent to leave in Lebanese hospitals
منشور في 2011"…Results The NWI-R subscale with the lowest mean score related to control. Younger nurses had lower scores on organizational support and career development. …"
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134
Bevacizumab and neovascular age related macular degeneration
منشور في 2011"…We reviewed articles between 1997 and January 2010 that included at least 30 patients with AMD who received intravitreal bevacizumab monotherapy for at least 1 year. The mean number of letters gained, decrease in CRT, and number of injections were 8 letters, 125.3 µm, and 4.3 injections, respectively. …"
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135
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A cooperative watchdog model based on Dempster–Shafer for detecting misbehaving vehicles
منشور في 2014"…Incentives are given in the form of reputation and linked to network’s services to motivate vehicles to behave cooperatively during the first phase. …"
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138
A cluster-based model for QoS-OLSR protocol
منشور في 2017"…The QOLSR is a multimedia protocol that was designed on top of the Optimized Link State Routing (OLSR) protocol. It considers the Quality of Service (QoS) of the nodes during the selection of the Multi-Point Relay (MPRs) nodes. …"
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139
Implementation of corporate governance rules and procedures in lebanese firms
منشور في 2014"…It also helps the organization to determine the means to achieve its objectives and monitor its performance. …"
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140
Studying coral reef patterns in UAE waters using panel data analysis and multinomial logit and probit models
منشور في 2020"…An extended dataset will enable a means to independently validate the defined models and test other modelling approaches. …"
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