81,803 research outputs found
Vapor pressure measuring system and method Patent
Equipment for measuring partial water vapor pressure in gas tan
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Private Schooling in the U.S.: Expenditures, Supply, and Policy Implications
This report provides a first-of-its-kind descriptive summary of private school expenditures. It includes comparisons of expenditures among different types and affiliations of private schools, and it also compares those expenditures with public school expenditures for districts in the same state and labor market. Results indicate that (1) the less-regulated private school sector is more varied in many key features (teacher attributes, pay and school expenditures) than the more highly regulated public schooling sector; (2) these private school variations align and are largely explained by affiliation -- primarily religious affiliation -- alone; and (3) a ranking of school sectors by average spending correlates well with a ranking of those sectors by average standardized test scores
Improved electrical spot terminals
Improved electrical spot terminal has been developed which can be rigidly attached to terminal mounting board. Mounting board is bonded to epoxy board which in turn is bonded to printed circuit board with high temperature adhesive. Conductive lead is coupled between electrical terminal and circuit trace on circuit board. Shape is usually clover-leaf
Electrical spot terminal assembly Patent
Electrical spot terminal assembly for printed circuit board
Exploring QCD with Heavy Ion Collisions
After decades of painstaking research, the field of heavy ion physics has
reached an exciting new era. Evidence is mounting that we can create a high
temperature, high density, strongly interacting ``bulk matter'' state in the
laboratory -- perhaps even a quark-gluon plasma. This strongly interacting
matter is likely to provide qualitative new information about the fundamental
strong interaction, described by Quantum Chromodynamics (QCD). These lectures
provide a summary of experimental heavy ion research, with particular emphasis
on recent results from RHIC (Relativistic Heavy Ion Collider) at Brookhaven
National Laboratory. In addition, we will discuss what has been learned so far
and the outstanding puzzles.Comment: 30 pages, invited Heavy Ion Summary Lectures at the Lake Louise
Winter Institute, February 2003, Lake Louise, Alberta, Canad
Combustion chamber inlet manifold separates vapor from liquid
Circular manifold with tangential orifices at the inner circumference provides for the vapor constituent of a vaporized cryogenic propellant to enter a rocket combustion chamber before the liquid constituent. The vapor is separated from the liquid by centrifugal action and precedes it into the chamber through carefully positioned orifices
Pressure transducer
Pressure-sensitive transducer, consisting of a series of spindle-supported electrically conductive metal washers connected to electrical sensing circuitry, determines the force exerted between a mounting bolt and nut on relatively fragile components
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