BOG (Boil off Gas) compressor deals with the gas evaporated from the LNG storage tank. Its working temperature is lower than-120℃. There are two types of starting process for BOG compressor: Direct Starting and No-load Starting. During the starting process, the temperature on cylinder will change rapidly and result in additional thermal stress to some parts on the cylinder, especially to the bo...

We study the Casimir force in piston-like geometries semiclassically. The force on the piston is finite and physical, but to leading semiclassical approximation depends strongly on the shape of the surrounding cavity. Whereas this force is attractive for pistons in a parallelepiped with flat cylinder head, for which the semiclassical approximation by periodic orbits is exact, this approximation...

Small diesel engines are widely used for commercial vehicle and passenger car applications due to their higher torque requirements, fuel economy, and better thermal efficiency. These engines are exposed to different operating and environmental conditions and hence emissions from these engines are erratic. Strategies are required to enhance performance and reduce engine-out emissions considering...

This paper analyses the privatization of utilities in Bolivia, detailing the particularities of the capitalization mechanism which was used for this purpose. The analysis suggests that capitalization and regulation, and the liberalization of the utilities sector more generally, succeeded in attracting foreign investment, thus fulfilling one of the central goals of the reforms of this sector. Fo...

In the above, it is understood that R is a commutative ring with 1. An Rlinear form is an expression Cy=o AiXi, where n ~0, AieR, An algebra d of Rlinear forms is a set of such forms closed under substitutions: if f(xe, . ..,xk) = = Ci PiXi and gi(Xe . . . . x,) = Cj AjXj are forms in d then h(x, . .., x,,) = =f(&l(xo9 * -9 x,x * ‘-9 gdxg, . . ., x,)) = Cj (C i Uilj)Xj is a form in & A form C 1...

A possible measurement of the top quark mass by an energy scan of the tf threshold region at e+ecolliders of fi = 250-500 GeV is discussed. With an integrated luminosity of 1 fb-’ devoted to the energy scan, a top quark msss of about 150 GeV can be determined with an accuracy of M 0.3 GeV, with a comparable systematic uncertainty arising from the few % errors in the cy, measurement at LEP-I. Th...

This paper describes an a r t i f i c i a l t a c t i l e sense with multi-elements that not only takes the pressure i n f o r mation without crushing an object in the hand, but also discr iminates one pat tern from another on the surfaces being in touch therewi th . The eigenvalue of pat tern of stress d i s t r i b u t i o n on the surface of the receptor elements is derived from the lielmhol...

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