32,275 research outputs found
Fluid valve assembly
A valve assembly is reported for controlling the flow of fluids between the inlet and outlet of a fluid valve. The valve assembly contains a barrier element which is porous for providing fluid communication between the valve inlet and outlet. The valve assembly also includes a sealing element that is movable relative to the barrier element between a first position, in which fluid flow through the porous portion of the barrier element is blocked preventing fluid communication between the valve inlet and outlet, and a second position, in which the porous portion is unblocked, permitting fluid communication between the valve inlet and outlet
Modification of physical properties of freeze-dried rice
Freeze cycling process consists of alternately freezing and thawing precooked rice for two cycles, rice is then frozen and freeze-dehydrated in vacuum sufficient to remove water from rice by sublimitation. Process modifies rice grain structure and porosity, enabling complete rehydration in one minute in hot water
Inflatable tether Patent
Space expandable tether device for use as passageway between two docked spacecraf
Hand-held self-maneuvering unit Patent
Hand-held maneuvering unit for propulsion and attitude control of astronauts in zero or reduced gravity environmen
Suppression of the Charge-Density-Wave State in SrCaCuO by External Pressure
The influence of external pressure on the charge-density-wave (CDW) ground
state of the quasi-one-dimensional two-leg ladder compound
SrCaCuO has been studied by optical reflectivity
measurements as a function of temperature (10 - 300~K) and pressure (0.3 -
4.3~GPa) over the spectral range 580 - 6000 cm. With increasing pressure
the CDW transition temperature decreases with the linear pressure
coefficient -70~K/GPa, and above 3~GPa the CDW phase is
suppressed at all temperatures. This behavior is similar to that in compounds
SrCaCuO with increasing Ca content at ambient
pressure, with the simple scaling . The size of the
CDW gap decreases with increasing pressure, whereas the dimensionality of the
high-temperature insulating phase in SrCaCuO within
the ladder plane is hardly affected by external pressure.Comment: accepted for publication in Phys. Rev.
Potassium food supplement
Potassium gluconate is considered best supplementary source for potassium. Gluconate consistently received highest taste rating and was indistinguishable from nonsupplemented samples. No unfavorable side effects were found during use, and none are reported in literature. Gluconate is normal intermediary metabolite that is readily adsorbed and produces no evidence of gastrointestinal ulcerations
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