The purpose of this research is to study the
feasibility of combining reaction and separation in a
membrane separation unit. The asymmetric ceramic membrane
reactor applied to the gas-phase catalytic decomposition
reaction of ammonia from an IGCC (Integrated Gasification
Combined Cycle Processes) gas mixture was simulated in the
temperature range...
Two diverse genotypes of tall fescue, Festuca arundinacea Schreb (6X=42), with normal fertility, produced upon intercrossing, vigorous F
₁
hybrid plants that were sterile. One parent genotype (P₁)
was from P. I. 234-906, introduced from Switzerland and the other
(P₉) was an introduction from Turkey, P. I. 174-209. P₁
and...
The present work is an attempt to correlate information collected in the northern part of Chile with the anchoveta distribution and its fluctuation. This information was collected over a three year period (November 1967 to November 1970) by the Instituto de Fomento Pesquero, Chile (IFOP). The first and second part...
The ecosystem services provided by our forest resources and woodlands are multiple and diverse on all spatial and temporal levels, and include provision, regulating, cultural, and supporting services (Hanson, et al. WRI, 2008). Human activities are proximate and direct drivers of deforestation and forest degradation. In the Latin American region,...
Dryland winter wheat in eastern Oregon is usually subjected to
water stress several times during the growing period. Moreover, the
last three months of growth period depend strongly on the available
soil water. The fertility level, stage of growth, availability of
soil water and climatic conditions all interact to determine...
Purpose: The paper discovers how many American Research Libraries produce podcasts, on what subjects they are produced and how those podcasts are promoted.
Design/methodology/approach: The researchers looked at each American Research Library’s website in December 2009 to determine if the library has a podcasting initiative and if so, what topics...
Posting advisory speed signs at sharp horizontal curve sites is a practice well established in the United States. The purpose of these signs is to provide the driving public with a safe speed to negotiate such curves; however, the link between these signs and safety has not yet been clearly...
Posting advisory speed signs at sharp horizontal curve locations is a common practice in the U.S. These signs recommend drivers safe speeds to negotiate such curves. Literature indicates that adherence to advisory speeds is, in general, poor. Moreover, limited research is available that quantifies safety implications of these signs. This...
In the future, Earth will be warmer, precipitation events will be more extreme, global mean sea level will rise, and many arid and semiarid regions will be drier. Human modifications of landscapes will also occur at an accelerated rate as developed areas increase in size and population density. We now...
Although variations in insolation and emergent feedbacks among soil moisture,
vegetation, and soil cohesion are commonly invoked to explain topographic asymmetry that
depends on aspect, few studies have directly quantified the efficiency of regolith transport along
hillslopes of opposing aspect. We utilize meteoric ¹⁰Be concentrations in regolith (n = 74)...
