نتایج جستجو برای: growth regime

تعداد نتایج: 887246  

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1999
Y P Zhao A R Hopper G C Wang T M Lu

In this paper, we propose a Monte Carlo simulation model for the initial growth of polymer films by considering only monomer surface diffusion in the vapor-deposition polymerization process. In the model, monomers are deposited randomly on a two-dimensional square lattice with periodic boundary conditions and are allowed to diffuse with nearest neighbor hops. Whenever monomers meet, they stop d...

2011
Maartje Liefting Jacintha Ellers

Natural environments are characterized by daily and seasonal fluctuations in temperature, and ectotherms are expected to adapt to these fluctuations. Moderate temperature fluctuations often accelerate development rate as a result of the Kaufmann effect and possibly additional physiological adaptations. We examined the adaptive potential of ecotype-specific reaction norms by measuring the effect...

2010
S Krzyk

We investigated the magnetoresistance of Permalloy (Ni80Fe20) films with thicknesses ranging from a single monolayer to 12 nm, grown on Al2O3, MgO and SiO2 substrates. Growth and transport measurements were carried out at 80K in UHV. Applying in-plane magnetic vector fields up to 100mT, the magnetotransport properties were ascertained during growth. With increasing thickness the films exhibited...

2008
David Andolfatto Paul Gomme

Andolfatto and Gomme (2003) find evidence that Canadian monetary policy appears to alternate between high and low money growth rate regimes, and that private-sector belief formation over these unobserved regimes could induce significant persistence in the propagation of monetary policy shocks. In this paper, we examine the sensitivity of these conclusions by re-estimating the data allowing for ...

2002
Álvaro Meseguer

This work is devoted to the study of transient growth of perturbations in the Taylor–Couette problem due to linear nonnormal mechanisms. The study is carried out for a particular small gap case and is mostly focused on the linearly stable regime of counter-rotation. The exploration covers a wide range of inner and outer angular speeds as well as axial and azimuthal modes. Significant transient ...

2000
Charles R. Nelson Jeremy Piger Eric Zivot Chang-Jin Kim James Morley Chris Murray

We investigate the power and size performance of unit root tests when the true data generating process undergoes Markov regime-switching. All tests, including those robust to a single break in trend growth rate, have very low power against a process with a Markov-switching trend growth rate as in Lam (1990). However, for the case of business cycle non-linearities, unit root tests are very power...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2011
Yael Efraim Haim Taitelbaum

In this paper, we report on persistence results of reactive-wetting advancing interfaces performed with mercury on silver at room temperature. Earlier kinetic roughening studies of reactive-wetting systems at room temperature as well as at high temperatures revealed some limited information on the spatiotemporal behavior of these systems. However, by calculating the persistence exponent, we wer...

2012
Mazat Numa Mazat Franklin Serrano

The purpose of this paper is to study the Soviet economic growth from 1950 to 1991, focusing on the questions of capital accumulation and structural change. The period will be divided into three phases, corresponding to different levels of economic growth and structural features. The first phase, from the 1950s to the beginning of 1970s, corresponds to a regime of extensive accumulation of capi...

Journal: :Journal of Research of the National Bureau of Standards Section A: Physics and Chemistry 1975

Journal: :Tree physiology 1995
Constance A. Harrington Dean S. Debell

Flowering and vegetative growth were assessed in 19 half-sib families of Alnus rubra Bong. planted in a replicated field trial near Olympia, Washington, USA. The trial consisted of three square spacings (0.5, 1.0 and 2.0 m), two irrigation regimes (low and high), and two fertilization treatments (0 and 300 kg P ha(-1)). Male and female flowers were surveyed in all plots for all families at plan...

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