نتایج جستجو برای: residue burning

تعداد نتایج: 67703  

Journal: :avicenna journal of dental research 0
m. baharvand assistant professor, oral medicine department, school beheshti university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) s.s. sabounchi phd st u d ent, community oral health department, school beheshti university of medical sciences, tehran, iran.سازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) e. jalali senior dental student, school beheshti university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences) z. maleki assistant professor, oral medicine department, school beheshti university of medical sciences, iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی شهید بهشتی (shahid beheshti university of medical sciences)

statement of the problem burning mouth syndrome (bms) is a condition presented with burning sensation without any pathologic changes of oral mucosa. since there are no accurate diagnostic criteria and because symptoms are so variable the studies have shown different prevalence. limited studies have been performed to estimate prevalence, of bms in iran and worldwide. purpose this research was co...

Journal: :Sustainability 2021

Crop residues are widely considered as a biofuel source and used in livestock feeding, or burned off to clean the field for tillage planting. Nonetheless, crop residue burning poses serious threats soil stability sustainability of food chain. This study aimed investigate potential environmental impacts wheat on declines quality developing (Iran) developed (Italy) countries by analyzing metadata...

Journal: :Journal of environmental management 2009
Jimmie C Oxley James L Smith Carolyn Higgins Patrick Bowden Jesse Moran Joe Brady Carol E Aziz Evan Cox

When an explosive detonates or a propellant or flare burns, consumption of the energetic filler should be complete but rarely is, especially in the presence of large amounts of non-combustible materials. Herein we examine three types of perchlorate-containing devices to estimate their potential as sources of contamination in their normal mode of functioning. Road flares, rocket propellants and ...

Journal: :Reactive & Functional Polymers 2022

Smart and multifunctional textiles fabrics are progressively developing, such that becoming more widespread. We elaborated herein multi-layered flax with superior flame retardancy conductivity, which revealed fireproof feature while keeping conductivity during burning. The fabric was reinforced by layer-by-layer (LbL) deposition of sodium polyacrylate (SPA), polyethylenimine (PEI), ammonium pol...

2014
Hongxi Zhang Xuefeng Ding Zichen Wang Xu Zhao

Rice husk is an abundant agricultural by-product reaching the output of 80 million tons annually in the world. The most common treatment method of rice husk is burning or burying, which caused serious air pollution and resource waste. In order to solve this problem, a new method is proposed to comprehensively utilize the rice husk in this paper. Firstly, the D-xylose was prepared from the semic...

1999
Nigel Boston Doug Kuhlman

We find that the minimum distance of the binary [137; 69] quadratic residue code is 21.

Journal: :Renewable Energy 2022

As countries implement renewable energy policies, it's important to understand the impacts of policies on sustainability. Population, economic and production changes affects in land use, water consumption emissions along with trade-offs for limited resources achieve food security. Thailand faces increasing electricity imports agricultural production, causing residue burning, a resource utilized...

Journal: :Environmental pollution 2008
Qing Zhang Jun Huang Gang Yu

Annual emissions of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) from open burning of crop residues in each province of China mainland between 1997 and 2004 were estimated to be ranged from 1.38x10(3) to 1.52x10(3) g I-TEQ/yr, with the average of 1.50+/-0.08x10(3) g I-TEQ/yr, which contributed to approximately 10% approximately 20% of the total emissions in China. The PCDD/F em...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید