نتایج جستجو برای: insufficient ratio of ventilated area to floor area

تعداد نتایج: 22194058  

Journal: :ecopersia 2013
reza ghazavi abbasali vali

re-vegetation of bare soil is believed to increase, or at least maintain the organic matter levels of soil. the aim of this study was to investigate the soil characteristics changes, nutrient pool sizes and their availability under mid canopy, and canopy gap positions of saltbush in an area re-vegetated with atriplex lentiformis. some of the physical and chemical soil characteristics (the parti...

Background & Aims of the Study: Promoting the health and safety is an important part of the fundamental mission of schools and one factor in designing and operating schools that always has been important is lighting. As students spend considerable hours in the classroom and school, lighting should be designed appropriately and in accordance with the standards, to protect them...

Journal: :journal of tethys 0

in central part of kopeh dagh there is an array of active right-lateral strike-slip faults that obliquely cut the range and produce offsets of several kilometers in the geomorphology and geological structure. geomorphic indices indicate the presence of differential uplifting in history of this area. tectonic activity of the study area is investigated by a large number of dem derived catchments ...

Journal: :journal of craniomaxillofacial research 0
jyotsna galinde professor, department of oral and maxillofacial surgery, mgm dental college & hospital, mumbai, india. suraj arjun ahuja resident, department of oral and maxillofacial surgery, mgm dental college & hospital, mumbai, india.

the occurrence of epidermoid and dermoid cysts in the oral cavity is extremely rare accounting 0.01% of all cysts. in our case report we hereby present a large epidermoid cyst in the floor of mouth imitating a plunging ranula. a 26-year-old female reported to us with a complaint of a swelling below the tongue since 2 year. on examination there was a swelling in the left side of the floor of the...

Journal: :The Journal of bone and joint surgery. British volume 2002
R J Sharp T Chesworth E D Fern

Patient warming systems are used routinely to prevent hypothermia under anaesthesia. Airflow from warming blankets may potentially influence bacterial counts either by pumping 'dirty air' from floor level to the operating area or by blowing the patients' skin cells into the operating field from airflow under the blanket. Using slit-air sampling we analysed the air quality within a laminar-flow ...

Journal: :Journal of environmental biology 2007
Murat Demir E Makineci E Yilmaz

In this study the impact of production work on the skid roads that have been carried out for many years by manpower animal power or machinery in a beech (Fagus orientalis Lipsky) stand have been examined. For this purpose, herbaceous understory, forest floor and soil samples were collected from the undisturbed area and the skid road. Weight per unit area (kg ha(-1)), organic matter ratio and mo...

Journal: :جغرافیا و مخاطرات محیطی 0
زهرا گوهری محمد تاج بخش محبوبه سربازی سید ناصر نعیمی قصابیان

1. introduction the analysis of drainage networks is a powerful tool to detect recent tectonic activity and uplift, as river channels are very sensitive to changes in the parameters that control their shapes and. climate changes, tectonics and lithology affect river equilibrium conditions and hence, river geometry. a river is in dynamic equilibrium when erosion keeps pace with sedimentation and...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 0

a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...

2016

Investigation of occupant’s indoor environment influences can be identified through perceptive-cognitive aspects. Such an investigation leads to affective responses such as satisfied or dissatisfied, annoyed or not annoyed and hot or cold. This study investigates the perceptive-cognitive aspects of indoor environment among students who are staying in multistorey accommodations in Klang Valley a...

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