نتایج جستجو برای: contact mechanic
تعداد نتایج: 163553 فیلتر نتایج به سال:
Introduction: Organization structure and manpower constitute two basiccomponents of anorganization and both are necessary for stablishing anorganization. The aim of this survey was to investigate the type of theorganization structure (mechanic and organic) from viewpoint of senior andjunior managers in Shiraz teaching hospitals and creativity in each of these two structures.Methods: In this cro...
Background: The first important issue underlying any organization is its structure. Among structural factors, complexity, formalization and centralization are more important than others and are considered as main factors. The main purpose of this research is determining structural factors(compelexity, formalization and centralization ) and the preferred structure with a mechanic and organic ap...
Introduction: Continuous exposure to cold air is considered to be a hazardous agent in the workplace in cold seasons. This study aimed to determine the level of cold strain and relation with physiological responses in auto mechanic employees in cold seasons. Method: This cross-sectional study was conducted in the winter of 2017 on auto mechanic employees in Hamadan city. Physiological response...
this paper presents a class of theoretical and iterative method for linear partial differential equations. an algorithm and analytical solution with a initial condition is obtained using the reduced differential transform method. in this technique, the solution is calculated in the form of a series with easily computable components. there test modeling problems from mathematical mechanic, physi...
In the field of the Solar system and planetary dynamics, extensive computational experiments became useful and well established, standard research tools. These experiments regard direct numerical integrations of complex equations of motion to study the long-term orbital evolution and stability of various N-body systems (e.g., [10]), an analysis of the resonance structure of the phase space of t...
We study a dynamic service mechanic problem in which large maintenance activities, known already before the start of the planning period, and emergency incidents, arriving during the planning period, need to be served by the same pool of mechanics. Since not enough own mechanics are available to serve all jobs, the goal is to minimize total expected costs by timely assigning some of the activit...
Li S, Jiao X, Tao L, Liu H, Cao Y, Lopez BL, Christopher TA, Ma XL. Tumor necrosis factorin mechanic trauma plasma mediates cardiomyocyte apoptosis. Am J Physiol Heart Circ Physiol 293: H1847–H1852, 2007. First published July 6, 2007; doi:10.1152/ajpheart.00578.2007.—Mechanical traumatic injury causes cardiomyocyte apoptosis and cardiac dysfunction. However, the signaling mechanisms leading to ...
The aim of this paper is to show the significance of the function of Mechanic of Surgical Instruments in raising up a modern, in 19th century terms, surgical clinic by prof. Ludwik Bierkowski. Exploiting mainly source materials, this article discusses the character of mechanical occupations and his duties. The personality of Gotlob Jentsch, first to take this position, and his immediate success...
Absract Magnetic actuation utilizes the mechanic torque that is the result of interaction of the current in a coil with an external magnetic field. A main obstacle is, however, that torques can only be produced perpendicular to the magnetic field. This actuation principle has been a topic of research since earliest satellites were launched. Magnetic control has been applied for nutation damping...
If you were to go into a motorcycle-parts department and ask them for a feedback assembly they wouldn’t know what the hell you were talking about. They don’t split it up that way. No two manufacturers ever split it up quite the same way and every mechanic is familiar with the problem of the part you can’t buy because you can’t find it because the manufacturer considers it part of something else...
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