نتایج جستجو برای: work function
تعداد نتایج: 2050362 فیلتر نتایج به سال:
Surface nanostructuring enables the fabrication of materials with highly desirable properties. Nanostructured tungsten surfaces have potential applications in solar water splitting. Exposing a polished surface to helium plasma induces various morphological changes. Depending on ion energy, temperature, and fluence, clusters, bubbles foam-like nanostructures develop surface. In this study, were ...
two groups of students were assigned as experimental and control ones, and were given instruction on directed reading-thinking activities and after some treatment, they were post-tested. although the initial pre-test did not show any significant differences, the final post-test result revealed that the cooperative reading comprehension helped the experimental group. the cooperative students’...
Introduction: Thermal stress and high physical activity reduce blood flow to the brain and decrease the mental performance of individuals. Therefore, this study aimed to investigate the effect of Heat stress on vital factors and cognitive function of Workers of Sarcheshmeh copper in Kerman. Method: This descriptive cross-sectional study was carried out on fifty-six Workers of Sarcheshmeh Coppe...
The aim of this study was to detect the level of the workers’ knowledge and their function regarding the care of lumbar spine. Some researchers have reported that increased knowledge of the workers, even when they have received specific training, does not cause any major changes in their back’s health and function. However, some research has shown a significant relationship between increased kn...
laguerre function has many advantages such as good approximation capability for different systems, low computational complexity and the facility of on-line parameter identification. therefore, it is widely adopted for complex industrial process control. in this work, laguerre function based adaptive model predictive control algorithm (ampc) was implemented to control continuous stirred tank rea...
background fumes released form welding activities are capable of initiating several acute and chronic respiratory effects. objectives the aim of the present study was to evaluate respiratory symptoms and spirometry parameters in welders of a steel industry. methods this cross-sectional study was conducted in a steel industry and involved 60 welders and 40 non-welders. a questionnaire was used t...
In the present study we focused on the electronic and structural properties of Na and Mg adsorption on the surface of the (6, 6) armchair SiCNTs. The adsorption energy (Eads), band gap energy (Eg), partial density of state (PDOS), chemical potential (μ), global hardness (η), electrophilicity index (ω), global softness (S), work function values (φ) and work function change (Δφ) are calculated by...
abstract amino acids are building blocks of proteins, and play a vital role in living beings existence and their functionality. the interaction of these compounds with metal ions is of great importance to biochemists, and chemists, because their functions can be utilized as a model in understanding enzymes mechanism for transport of metal ions to tissues. among twenty essential amino acids w...
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