نتایج جستجو برای: leaf burning
تعداد نتایج: 103725 فیلتر نتایج به سال:
Reptiles in urban remnants are threatened with extinction by increased fire frequency, habitat fragmentation caused by urban development, and competition and predation from exotic species. Understanding how urban reptiles respond to and recover from such disturbances is key to their conservation. We monitored the recovery of an urban reptile community for five years following a summer wildfire ...
In this study, the combustion characteristics and burning rate of RDX/AP/Al/HTPB composite solid propellant were studied experimentally. Five different RDX-based propellant compositions have been formulated and the burning rate and calorimetric value were evaluated. The burning rates of RDX composite solid propellants increased with increasing RDX content. The data obtained from experimental te...
abstract conservation tillage practices integrated with appropriate residue management is an efficient approach in sustainable agriculture to prevent the removal or burning of crop residues. two years field experiments were conducted to evaluate the effect of wheat residue management on yield, yield component and morphophysiological characteristics of corn. experimental design was split plot us...
The aim of the study was to determine the level of anxiety and depression in patients with and without burning mouth syndrome, and to assess the possible association between the intensity of burning mouth and incidence of depression and anxiety. The study was conducted in a sample of 120 randomly chosen adult patients from two dentist offices in Nova Gradiska (Croatia). Patient data were collec...
PM2.5 inventories have been developed inmajor Chinese cities to quantify the contributions from various sources based on annual emissions. This approach, however, could substantially underestimate the contribution fromopen straw burning during the harvest or other active burning periods. This study examines this issue by estimatingmonthly and annual straw-burning PM2.5 emissions in China and co...
An experiment conducted as part of the multidisciplinary National Fire and Fire Surrogate Study was designed to determine effects of three fuel reduction techniques on small mammals and habitat structure in the southern Appalachian mountains. Four experimental units, each >14-ha were contained within each of three replicate blocks at the Green River Game Land, Polk County, NC. Treatments were (...
self-burning is the most devastating burn injur y. it is a common social and medical problem in iran. in a longitudinal prospective study, from april 2003 to march 2006, all burn patients admitted to ghotb-eddin burn hospital were enrolled in this study. suicide attempts by burning accounted for 283 (21.9%) of all burn patients admitted to the hospital. most (68.2%) of self-burning patients wer...
While various energy-producing technologies have been analyzed to assess the amount of energy returned per unit of energy invested, this type of comprehensive and comparative approach has rarely been applied to other potentially limiting inputs such as water, land, and time. We assess the connection between water and energy production and conduct a comparative analysis for estimating the energy...
NOTICE This technical report does not necessarily represent final EPA decisions or positions. It is intended to present technical analysis of issues using data that are currently available. The purpose in the release of such reports is to facilitate the exchange of technical information and to inform the public of technical developments which may form the basis for a final EPA decision, positio...
[1] Our objective was to measure the stable carbon isotope composition of leaf tissue and CO2 released by respiration (dr), and to use this information as an estimate of changes in ecosystem isotopic discrimination that occur in response to seasonal and interannual changes in environmental conditions, and land-use change (forest-pasture conversion). We made measurements in primary forest and pa...
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