Steady state and transient performance of hot reservoir gas controlled heat pipes

Inert gases for passive control of heat pipes in hot reservoir system

Flat-plate heat pipe

Flat plate (vapor chamber) heat pipes were made by enclosing metal wicking between two capillary grooved flat panels. These heat pipes provide a unique configuration and have good capacity and conductance capabilities in zero gravity. When these flat plate vapor chamber heat pipes are heated or cooled, the surfaces are essentially isothermal, varying only 3 to 5 C over the panel surface

Development of a fidelity structural model based on a shake table test for an innovative seismic resisting system

The research project is to produce a fidelity three-dimensional (3D) structural model based on a shake table test, which is used to demonstrate performances of an innovative seismic resisting system for reducing damages to building structures under earthquakes

User's manual for the TRW gaspipe program. A vapor-gas front analysis program for heat pipes containing noncondensible gas

Digital computer program manual for design, analysis, and performance prediction of heat pipes with noncondensible gases including input/output routines and Runge-Kutta model

User's manual for the TRW gaspipe 2 program: A vapor-gas front analysis program for heat pipes containing non-condensible gas

A digital computer program for design and analysis of heat pipes which contain non-condensible gases, either for temperature control or to aid in start-up from the frozen state, is presented. Some of the calculations which are possible with the program are: (1) wall temperature profile along a gas-loaded heat pipe, (2) amount of gas loading necessary to obtain desired evaporator temperature at a desired heat load, (3) heat load versus evaporator temperature for a fixed amount of gas in the pipe, and (4) heat and mass transfer along the pipe, including the vapor-gas front region

Loss of high-level perceptual knowledge of object structure in DAT

Peer reviewe

Development of a fidelity structural model based on a shake table test for an innovative seismic resisting system

The research project is to produce a fidelity three-dimensional (3D) structural model based on a shake table test, which is used to demonstrate performances of an innovative seismic resisting system for reducing damages to building structures under earthquakes

Should Research Ethics Encourage the Production of Cost-Effective Interventions?

This project considers whether and how research ethics can contribute to the provision of cost-effective medical interventions. Clinical research ethics represents an underexplored context for the promotion of cost-effectiveness. In particular, although scholars have recently argued that research on less-expensive, less-effective interventions can be ethical, there has been little or no discussion of whether ethical considerations justify curtailing research on more expensive, more effective interventions. Yet considering cost-effectiveness at the research stage can help ensure that scarce resources such as tissue samples or limited subject popula- tions are employed where they do the most good; can support parallel efforts by providers and insurers to promote cost-effectiveness; and can ensure that research has social value and benefits subjects. I discuss and rebut potential objections to the consideration of cost-effectiveness in research, including the difficulty of predicting effectiveness and cost at the research stage, concerns about limitations in cost-effectiveness analysis, and worries about overly limiting researchers’ freedom. I then consider the advantages and disadvantages of having certain participants in the research enterprise, including IRBs, advisory committees, sponsors, investigators, and subjects, consider cost-effectiveness. The project concludes by qualifiedly endorsing the consideration of cost-effectiveness at the research stage. While incorporating cost-effectiveness considerations into the ethical evaluation of human subjects research will not on its own ensure that the health care system realizes cost-effectiveness goals, doing so nonetheless represents an important part of a broader effort to control rising medical costs

British entrepreneurs and industrial revolution cost management: a study of innovation

Traditional accounting histories date the advent of sophisticated cost accounting from the mid-1880\u27s and credit American innovators of Frederick Taylor\u27s scientific management movement with conceiving the new practices. However, it is counterintuitive to think the entrepreneurs of the British Industrial Revolution would not have developed costing techniques, given their significant methodological advances in other economic areas, such as technology, capital accumulation, and marketing structure development. This paper reports the findings from a survey of surviving business records from twenty-five large industrial firms during the 1760-1850 period, concentrated in the dominant textile and iron industries. Substantial evidence of mature cost management has been found in eight major areas of activity

Loss of Rail Competition as an Issue in the Proposed Sale of Conrail to Norfolk Southern: Valid Concern or Political Bogeyman

The Department of Transportation\u27s plan to return Consolidated Rail Corporation (Conrail) to the private sector by selling the federal government\u27s controlling interest to Norfolk Southern Corporation has, not surprisingly, been the subject of a spirited debate in the transportation and political community since its announcement in February, 1985. Critics have said that the sale proposal runs directly contrary to [antitrust] policy goals and would have a serious, adverse effect on competition. The proposal is a flagrant violation of antitrust laws and would create an unconscionable monopoly. The purpose of this article is to examine the legal standards historically and currently applied to considering the competitive impacts of rail consolidations in conjunction with the goals of the legislation relating to Conrail. With that perspective, a viewpoint will be offered as to whether the competitive effects of the proposed sale have been addressed in a manner consistent with those standards and goals