Turbine oil plays an important role in supporting optimal steam turbine performance. Some additives in turbine oil can cause emulsification when the oil is contaminated by water, so demulsibility is a very important property of the steam turbine oil. In order to improve the demulsibility of steam turbine oil, two kinds of polyether-silicone comb copolymers are synthesized and used as steam turb...

Treated sea water is the most significant source of water and surfactant floods. The various chemicals employed in treatment plants should be compatible with surfactant systems. Based on surface tension experiments, the activity of these chemicals is examined over a wide range of concentrations in different solutions, including distillated water, sea water by using three types of surfactant mix...

Major proportion of intracellular calcium (Ca 2+ ) is achieved through opening of calcium channels present in the plasma membrane which play an important role in regulating neuromuscular coordination and release of neurotransmitters from nerve terminals. Blockade of these calcium channels adversely affect contractile process and release of neurotransmitters in majority of the neuromuscular prep...

Poor dark adaptation is a not uncommon symptom and may occur in a wide variety of diseases but its occurrence in one eye only is far less frequent. When it occurs unilaterally, an obvious ocular disease is generally present to account for it and visual functions other than that of dark adaptation are also depressed. Some subjects with poor dark adaptation may have no demonstrable ocular lesion ...

Rural areas are not blessed with—indeed they are largely defined by the absence of—the advantages of urban areas: dense environments of customers and suppliers, knowledge spill overs, urban agglomeration advantages, such as rich labor markets, transportation accessibility, capital (particularly venture capital), information, and the “buzz” of face-to-face contact (Storper and Venables, 2002; Ac...

In this paper we use a general equilibrium model of Vietnam, calibrated to 1995 data, to analyze tax reform options for Vietnam. We focus on aggregate welfare impacts as well as welfare of household groups ranked by income. The main focus is on indirect tax reform (VAT), but we also examine reforms in the external sector given both the revenue importance of the tariff and the role of tariffs in...

A powerful and versatile method of shape-preserving interpolation is developed in terms of piecewise exponential functions with a tension factor associated with each interval. Knots coincide with data points, and the interpolant is formulated in terms of its values and first derivatives at these points. For a given set of derivatives, this enables the efficient computation of the minimum tensio...