نتایج جستجو برای: leaf burning

تعداد نتایج: 103725  

ژورنال: مواد پرانرژی 2017

By comparing the empirical and predicted performance diagrams of the composite solid propellants, it appears that there is a discrepancy between these two graphs .This deviation has been attributed to spatial burning rate variation which is related to burning rate fluctuation or hump effect. The most important reasons for this spatial burning rate variation are casting process. In order to appr...

ژورنال: مواد پرانرژی 2014

Investigation shows that the some complex and expanded parameters are effective on the burning rate. In this paper we evaluate the effect of particles dispersion, size of AP particle, the size of Al particles, Fe2O3, viscosity, shape factor, the size of mixer and the mechanical parameters such as tensile and stress on the burning rate. These studies show that the decrease of AP particles, size ...

Journal: :Journal of hazardous materials 2011
Bing Chen Shou-Xiang Lu Chang-Hai Li Quan-Sheng Kang Vivien Lecoustre

The influence of the initial fuel temperature on the burning behavior of n-heptane pool fire was experimentally studied at the State Key Laboratory of Fire Science (SKLFS) large test hall. Circular pool fires with diameters of 100mm, 141 mm, and 200 mm were considered with initial fuel temperatures ranging from 290 K to 363 K. Burning rate and temperature distributions in fuel and vessel wall w...

Journal: :iranian red crescent medical journal 0
zahra ranjbar department of oral and maxillofacial medicine, oral and dental disease research center, school of dentistry, shiraz university of medical sciences, shiraz, ir iran mehdy davarmanesh department of oral and maxillofacial medicine, school of dentistry, shiraz university of medical sciences, shiraz, ir iran maryam zahed department of oral and maxillofacial medicine, oral and dental disease research center, school of dentistry, shiraz university of medical sciences, shiraz, ir iran; department of oral and maxillofacial medicine, school of dentistry, ghasrodasht ave., ghomabad dist, shiraz university of medical sciences, shiraz, ir iran. tel: +98-9173000887 sadaf salehi undergraduate student, school of dentistry, shiraz university of medical sciences, shiraz, ir iran

objectives this study investigates the prevalence of burning mouth symptom for the first time in an institutional group of patients in shiraz, iran, among whom some were found to have bms through excluding the recognizable physical or biochemical causes of mouth burning. methods in this cross sectional study, from the existing records of 2 533 patients who referred to shiraz dental school since...

Journal: :International Writing Program Anthology 1976

Journal: :Journal of Pure and Applied Microbiology 2021

In recent years, solid waste management has developed from early approaches of burning or dumping to reuse, recycle, regain, and retain various alternative technologies. The present study aims at developing an effective community model with a solution multiple issues. It provide widespread stubble burning, dry leaf litter promoting plastic reuse. novel technology involved the cultivation Oyster...

Journal: :Remote Sensing 2017
Zi-Yue Chen Danlu Chen Yan Zhuang Jun Cai Na Zhao Bin He Bingbo Gao Bing Xu

Although a many studies concerning crop residue burning have been conducted, the influence of crop residue burning on local PM2.5 concentrations remains unclear. The number of crop residue burning spots was the highest in Heilongjiang province and we extracted crop residue burning spots for this region using MOD14A1 (Thermal Anomalies & Fire Daily L3 Global 1 km) data and national land cover da...

Journal: :journal of dental materials and techniques 0
maryam maryam baharvand department of oral medicine, dental school, shahid beheshti university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) majid majid eshghpour dental research center, department of oral and maxillofacial surgery, faculty of dentistry, mashhad university of medical sciences, mashhad, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (mashhad university of medical sciences) hamed hamed mortazavi department of oral medicine, dental school, shahid beheshti university of medical sciences, tehran, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) zeynab zeynab fallah general dentist, gorgan, iran

introduction: burning mouth syndrome (bms) is defined as burning and pain in the oral mucosa usually without any clinical and laboratory findings. it has a negative effect on patients' quality of life and can be a significant health problem. the aim of this study was to identify major risk factors associated with bms in menopausal and non-menopausal women at dental clinics of gorgan, iran. meth...

2006
Xiaoyang Zhang Shobha Kondragunta

[1] Spatially-distributed forest biomass components are essential to understand carbon cycle and the impact of biomass burning emissions on air quality. We estimated the density of forest biomass components (foliage biomass, branch biomass, and aboveground biomass) at a spatial resolution of 1 km across the Contiguous United States using foliage-based generalized allometric models and Moderate-...

2016
DIETER MITSCHE ELHAM ROSHANBIN

Graph burning is a deterministic discrete time graph process that can be interpreted as a model for the spread of influence in social networks. The burning number of a graph is the minimum number of steps in a graph burning process for that graph. In this paper, we consider the burning number of graph products. We find some general bounds on the burning number of the Cartesian product and the s...

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