نتایج جستجو برای: factor of safety

تعداد نتایج: 21256668  

Journal: :international journal of advanced biological and biomedical research 2014
n s.a. igwe n.n. nwobodo

objective: newbouldia laevis seem, is an ubiquitous perennial plant belonging to the family bignoniaceae with varying applicability in ethnomedicine. methods: the anticonvulsant effect of the aqueous extracts of root and stem bark preparations was undertaken using standard techniques. results: results showed that the ld50 in mice was 489.8mg/kg body weight while 5.6mg/kg body weight protected m...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1390

learning a second or foreign language requires the manipulation of four main skills, namely, listening, reading, speaking, and writing which lead to effective communication. it is obvious that vocabulary is an indispensible part of any communication, so without a vocabulary, no meaningful communication can take place and meaningful communication relies heavily on vocabulary. one fundamental fac...

Journal: :international journal of occupational hygiene 0
mohammadjavad jafari occupational health engineering department, school of public health, shahid beheshti university of medical sciences, tehran, iran. mehdi gharari occupational health engineering department, school of public health, shahid beheshti university of medical sciences, tehran, iran. mohtasham ghafari public health department, school of public health, shahid beheshti university of medical sciences, tehran, iran. leila omidi occupational health engineering department, school of public health, tehran university of medical sciences, tehran, iran. saba kalantari occupational health department, school of public health, arak university of medical sciences, arak, iran. golamreza asadolah-fardi civil engineering department, school of engineering, university of tarbiat moalem, karaj, iran.

safety issues have always been put forward as one of the major problems and primary concerns in construction industries in many countries. this paper will focus on the impact of safety training on safety climate and its relevant factors in two sites of a construction firm. the health and safety executive (hse) guide to safety climate tool that had been validated in iran was used to determine th...

Journal: :journal of research in health sciences 0
fakhradin ghasemi omid kalatpour abbas moghimbeigi iraj mohammadfam

background: high-risk unsafe behaviors (hrubs) have been known as the main cause of occupational accidents. considering the financial and societal costs of accidents and the limitations of available resources, there is an urgent need for managing unsafe behaviors at workplaces. the aim of the present study was to find strategies for decreasing the rate of hrubs using an integrated approach of s...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور مرکز - دانشکده زبانهای خارجی 1391

the primary goal of the current project was to examine the effect of three different treatments, namely, models with explicit instruction, models with implicit instruction, and models alone on differences between the three groups of subjects in the use of the elements of argument structures in terms of toulmins (2003) model (i.e., claim, data, counterargument claim, counterargument data, rebutt...

ارشدی, نسرین , بشلیده, کیومرث , رحیمی پردنجانی, طیبه , نیسی, عبدالکاظم , هاشمی شیخ شبانی, سید اسماعیل ,

Introduction: previous studies have shown approximately 90% of accidents in the workplace are due to unsafe behavior and human errors. Identifying predictors of unsafe behaviors would be unsafe in accidents prevention. The purpose of this study was to investigate personality characteristics, cognitive and organizational variables of line workers in an industrial company in bojnurd. .Material ...

Arash Razmkhah, Shahram Shiravi

The present study examined the effect of the geometric parameters of the Rockfill dams on the 2D static analysis of slope stability. In this regard, several numerical models analyzed for eight heights, three slopes of upstream and downstream, three vertical and skewed core thicknesses and four different impounding time stages namely, "End of Construction", "Full Reservoir", "Half Full Reservoir...

ژورنال: سلامت کار ایران 2007
ارقامی, شیرازه, حیدری, محمد حسن, فرشاد, علی اصغر,

  Background and aims   Unsafe attitude are the offset of occurring an accident. Although conducting few studies regarding to systematic measurement on requirement and attitude in the  field of safety in organization. One of the critical factors in order to make attempts to provide some programmers increasing safety behaviors is acknowledging the safety climate of working  environment. In this ...

Journal: :iranian journal of fuzzy systems 2004
mehrashk meidani ghassem habibagahi serajedin katebi

while sophisticated analytical methods like morgenstern-price or finite elementmethods are available for more realistic analysis of stability of slopes, assessment of the exactvalues of soil parameters is practically impossible. uncertainty in the soil parameters arisesfrom two different sources: scatter in data and systematic error inherent in the estimate of soilproperties. hence, stability o...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1392

the present research was conducted to explore the effect of employing two language teaching approaches, i.e. schema-based instruction (sbi) and translation-based instruction (tbi), on vocabulary knowledge, structure and reading comprehension ability of forty one female students learning english in grade one senior high school in rivash, kuhsorkh, iran. while sbi focuses on schemata, i.e. words ...

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