نتایج جستجو برای: 1380

تعداد نتایج: 6116  

Journal: :iranian economic review 0

budget deficit constitutes a major fiscal indicator. it has major important ramification on macro-economic position of all nations. in developing countries generally, and in iran specifically, governments are likely to spend more on miscellaneous as well as differentiated obligations causing high expenditure costs with respect to their limited revenues. this causes a budget deficit to incur. th...

Journal: :Carbon trends 2022

Based on crystal chemistry considerations and quantum density functional theory ground state calculations, rhombohedral rh-C3 hexagonal h-C6 carbon allotropes are proposed energetically calculated as new stable ultra-hard phases likewise lonsdaleite. Along the two kinds of in linear C2-C1-C2 lattice, distorted tetrahedra C2(sp3) with an angle 106.17{\deg} (smaller than ideal 109.4{\deg}) C1(sp)...

Journal: :Acta Polytechnica 2022

The presented study focuses on inspecting the dependency between process conditions, especially permeate and retentate pressure component recovery of H2, CO, CO2 during a membrane separation model syngas. Experiments with both pure components mixture were performed using laboratory unit Ralex GSU-LAB-200 polyimide hollow fibre module 3000 fibres. Permeability values established at 1380 Barrer f...

Journal: :Journal of Alloys and Compounds 2021

TiSi2/SiC composites are promising materials for high temperature applications. The synthesis of these by metal infiltration is an interesting method that not still mastered. This study aims at identifying the thermodynamic and kinetic processes involved during capillary liquid silicon or Si-Ti molten alloys in porous compacts. Three cases were examined to produce dense materials: 1) TiSi2 pure...

Journal: :Lecturas educación física y deportes 2021

Introduction: Early childhood is the most critical period of healthy motor and cognitive development in human life increased physical activity may provide health benefits across adolescence. Objective: The aim this study was to quantify relationship between non-aerobic fitness preschool children. Methods: Participants included children from a longitudinal city Rio de Janeiro, Brazil (N=1380, fi...

Journal: :Sustainability 2022

This paper investigates the Chinese rural household food waste issue from unique perspective of religious beliefs based on 1380 samples in 26 provinces mainland China. By using count regression approach model, it is found that about 2.30% home meal wasted average for households. The empirical results reveal religion has a significantly negative impact residents’ wastage, and households less tha...

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