نتایج جستجو برای: population growth parameters

تعداد نتایج: 1977652  

Like any other precipitation process, in supercritical water hydrothermal synthesis (SWHS), the need to improve product quality and minimize production cost requires understanding and optimization of Particle Size Distribution (PSD). In this work, using Population Balance Equation (PBE) containing nucleation and growth terms, the reactive precipitation of zirconia nanoparticles prepared by ...

2001

During the early to mid-1990s, the pace of economic growth in the South was broadly comparable with that in the rest of the United Kingdom. During 1996–98, however, the pace of activity in the South strengthened considerably relative to the rest of the country. This article investigates one possible explanation for divergences in growth between the two regions—namely differences in the relative...

پایان نامه :دانشگاه بین المللی امام خمینی (ره) - قزوین - دانشکده علوم پایه 1392

in this thesis,spin dependend transport and electron transport through of ng/sg(graphene/ superconductor graphen) are studied in the junction of ng/fgt/sg. due to andreev reflection conductance increases in the presence of superconductor graphene.also, by applying a voltage gate on a superconductor, fermi level shifts and the conductance is independent of ferromagnatic substrate. also, the cond...

2009
Mohammad Afzal

There is divergence of opinion regarding the consequences of population growth for economic development. Some view rapid population growth as a real problem while others assert that it is not a matter of grave concern. Crossnational evidence on the relationship between population growth and economic growth is inconsistent because the underlying parameters and assumptions vary across countries. ...

2005
Yoosook Lee Travis C. Collier Gregory M. Kobele Edward P. Stabler Charles E. Taylor

The complexity, variation, and change of languages make evident the importance of representation and learning in the acquisition and evolution of language. For example, analytic studies of simple language in unstructured populations have shown complex dynamics, depending on the fidelity of language transmission. In this study we extend these analysis of evolutionary dynamics to include grammars...

Journal: Journal of Nuts 2017

This study was conducted to evaluate the response of Iranian promisinglate blooming almond genotypes to deficit-irrigation stress on GN15 rootstock. One-year old plants subjectedto three deficit-irrigation, including moderate and severe stress (soil water potential, Ψsoil = -0.8 and -1.6 MPa, respectively) and a control treatment (Ψsoil= -0.33 MPa), were applied for six weeks to five grafting c...

2012
Aníbal E Carbajo María V Cardo Darío Vezzani

BACKGROUND Dengue cases have increased during the last decades, particularly in non-endemic areas, and Argentina was no exception in the southern transmission fringe. Although temperature rise has been blamed for this, human population growth, increased travel and inefficient vector control may also be implicated. The relative contribution of geographic, demographic and climatic of variables on...

Journal: :Philosophical transactions of the Royal Society of London. Series B, Biological sciences 2009
Adair Turner

Rapid population growth continues in the least developed countries. The revisionist case that rapid population could be overcome by technology, that population density was advantageous, that capital shallowing is not a vital concern and that empirical investigations had not proved a correlation between high population growth and low per capita income was both empirically and theoretically flawe...

1997
Michael Lipton

3 INTRODUCTION This paper is a 'think-piece' about the relationship between demographic changes and consumption-both levels and structure-and via this on human development. The motive for focusing on demographic changes is related to recent findings that the demographic transition towards older populations, by increasing savings/income ratios and worker/child ratios, (1) speeds up economic grow...

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