Academic transfer

Abstract Thermo-mechanic treatment consists in utilization of two classic technological proceedings. This type of treatment was applied to the studied high-speed steel (HS2-9-1-8). The made tests wanted to establish the influence on the hardness and wear of the high-temperature thermo-mechanical treatment (HTTMT) applied to studied steel. The application of an additional plastic deformation (the deformation degree between 45 – 75%) influences positive the hardness and wear value. Being a HTTMT,…

3A.2.10 Robustness A method is robust if it is unaffected by small changes in operating conditions. To evaluate the robustness of developed analytical method few parameters were deliberately changed. The parameters included analysis at different temperatures viz. 250C and 300C, at 0.8 and 1.0 mL/min flow rate, using C18 columns from different manufacturers one from Qualisil BDS, USA (4.6 x 250 mm x5µ) and the other from LC-GC, India (4.6 x 250mm x5µ). Each of the three selected factors were…

Solubility property of ozone is dependent on several extrinsic factors such as temperature, pressure, composition of the medium, pH, gas flow rate, etc. Henry’s law says that the pressure of the gas exerts above the liquid is directly proportional to the solubility of the ozone (Bablon et al., 1991). De Smedt et al. (2001) revealed that solubility of ozone is dependent on pH, temperature and type of additives of the aqueous solution. Levanov et al. (2008) found that solubility of ozone decreased…

AC conductivity: Figure 4.19(a) shows the frequency dependent electrical conductivity of PCL5 electrolyte. The result shows that AC conductivity changes with temperature. The AC conductivity of the PEO/CoCl2 electrolyte increases with temperature is given in Table 4.4, which is the common characteristic of disordered materials. An increase in ac conductivity with frequency and temperature indicates charge transported by hopping through the defect sites along the polymer chain [70]. Also the…

The type of sauna in which light is created by heat it is known as infrared sauna. Traditionally it is used to warm the air, which results in giving warm to the body. It uses infrared heater which emits light of infrared which is absorbed by the skin. Detoxification: Your skin is the better agency of your body. The subcutaneous fatty band is amid just beneath the skin. An infrared sauna emits application that access into the tissues to a depth of 1.5 inches. Stimulates fat cells, sebaceous…

conduction differential equation is: where T (x, t) is the temperature of the spot x at the time t and is also the coefficient of thermal diffusivity used to measure the heat transfer and storage ability of the material, which varies with temperature and position. Equation (5) gives the form of three-dimensional heat transfer function. It is generally difficult to find the analytical solution because of the complexity of the actual solution conditions. Therefore, this equation is often…

‘Shape Factor' New Concept as a Determinant The Thermal Behavior of the Domed Roof: A Comparative Study Jamal Abed Al Wahid Jassim al Sudany Department of architectural Decorating, Institute of Applied Arts, Middle Technical University-Iraq Jamal_al_sudany@yahoo.com Abstract— Domes were used extensively to cover the roofs of buildings, particularly mosque buildings; The purpose of this paper was to examine the role of the formation of domed roof of the thermal behavior of a relationship…

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Thermoelasticity describes the interaction of the mechanical fields such as stress, strain and displacement with temperature field and investigates the interaction on the basis of the thermodynamics of the irreversible processes. It relates two separate and independently developed sciences: the theory of elasticity and the theory of heat conduction. The two basic branches of elasticity, namely elastostatic and elastodynamics are developed under different thermodynamic assumptions. The problems…

Heat stress may occur to human when the controlling means for internal temperature to their body starts to fail (Health and Safety Executive, 2013). There are different contributing factors to the heat stress such as temperature, amount of work performed in heat (ambient temperature), clothing worn at work and humidity. When somebody wears protective dress to perform heavy task in hot environment, can result the heat stress due to: restricting the evaporation of sweating; heat rise in body due…