نتایج جستجو برای: acceptable noise level anl test
تعداد نتایج: 1983163 فیلتر نتایج به سال:
this study was an attempt to investigate the effect of using c-test passages on the reading comprehension and incidental vocabulary learning of iranian intermediate efl learners. the participants were 60 male efl learners at kish mehr institute in garmsar. in fact, there were two groups, an experimental group and a comparison group with 30 students in each. the participants were pretested throu...
Models of the sensor noise added in the picture capture process are important components of sensor models for vision systems. Most studies assume that the noise can be described by an additive, independent, identically distributed Gaussian model. This paper presents a test of this hypothesis. It gives the results of applying the test to two camera and A/D converter setups. For both of these, th...
objective: noise pollution is one of the most important situations requiring a solution by the contemporary world. the national institute for occupational safety and health has identified noise as one of the ten leading causes of work-related diseases and injuries. dentists and dental auxiliaries are exposed to different noise levels while working in dental offices or laboratories. the purpose ...
In this study, some environmental pollution parameters of the Atatürk Dam Lake which is Turkey's largest artificial lake and meeting irrigation energy needs Ad?yaman ?anl?urfa were evaluated with biochemical data in carp living consumed economically by public. Water, sediment fish samplings done simultaneously from Kahta Bozova districts, where located. Residue analyzes various metals water, mu...
Background and Aim: Laboratory fume-hoods are the first-level protection for the laboratory staff against hazardous chemical pollutants. Considering the large numbers of personnel, especially in petrochemical industry laboratories, this project was carried out in order to assess the performance of laboratory hoods based on tracer gas (SF6).Materials and Methods: In this project 22 hoods in the ...
An experimental study was performed to compare the annoyances from civil-aircraft noise, military-aircraft noise, railway noise, and road-traffic noise. Two-way within-subjects designs were applied in this research. Fifty-two subjects, who were naive listeners, were given various stimuli with varying levels through a headphone in an anechoic chamber. Regardless of the frequency weighting networ...
Lett. 40, 1161 {1978);K. Hidaka, E. Monsay, and D. Sivers, Argonne National Laboratory Report No. ANL-HEP-PR-78-47 (unpublished); C. K. Chen, Argonne National Laboratory Reports No. ANL-HEP-PR78-20 and No. ANL-HEP-78-17 (unpublished). H. D, Field, Phys. Rev. Lett. 40, 997 (1978); J. F. Gunion, "The Interrelationship of the Constituent Interchange Model and Quantum Chromodynamics" (unpublished);...
Background and aims: Noise is one of the troubles in industrial world and numerous people are affected by it. Sleep disturbance is a harmful effect of exposure to noise. High quality of sleep is an important factor in health and well-being so its decline can threaten persons’ health and even their safety. The current study was conducted to assess the relationship between exposure to noise...
The core conversion studies of the Ghana Research Reactor Core started in 2006 and with the objective of designing an LEU core with similar operational capabilities as the original HEU core and with acceptable safety margins under both normal and accident conditions. Steadystate studies for converting the Ghana MNSR facility from HEU to LEU core have been performed using the PLTEMP/ANL V4.1 cod...
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