Keyword: Manifolds

Briefs: Aerospace

Large-scale liquid rocket engines with regeneratively cooled nozzles will enable reliable and reduced-cost access to space. The coolant that circulates through the internal...

Briefs: Sensors/Data Acquisition

Part of the TDK group of companies, Headway Technologies (Milpitas, CA) is a semiconductor manufacturer of memory and drive head technologies, and designs and manufactures recording...

Briefs: Propulsion

There are difficulties related to storing enough gas to propel a CubeSat within an onboard tank. Currently, a CubeSat requiring a large volume of gas for extended...

Briefs: Mechanical & Fluid Systems
Piezoelectric-Actuated Cryogenic Thermodynamic Vent Valve

Cryogenic fluid control valves require actuation that controls the geometric position of the orifice in a thermally stable manner. Traditional actuator devices may have various materials used in their construction that have varying CTEs (coefficients of thermal expansion) and therefore...

Briefs: Materials

NASA vehicles using cryogenic propellants and systems need improved cryogenic storage and transfer, including insulation for cryogenic transfer/feed lines....

Articles: Motion Control

Over the past several years, controls engineers have become adept at applying control systems to machine safety applications. The issue is that safety is a moving target....

Briefs: Information Technology

A lake and shore sampling and sample distribution system was developed for a Titan lake environment (93.7 K, in liquid hydrocarbons). The Titan Lake and Shore Sampler (TLASS) would enable the chemical analysis of...

Briefs: Test & Measurement

An ultrasonic intake airflow meter for engine testbed applications was developed. An automotive intake airflow meter must fulfill a series of requirements differentiating it from typical...

Briefs: Information Technology
Sample Analysis at Mars Instrument Simulator

The Sample Analysis at Mars Instrument Simulator (SAMSIM) is a numerical model dedicated to plan and validate operations of the Sample Analysis at Mars (SAM) instrument on the surface of Mars. The SAM instrument suite, currently operating on the Mars Science Laboratory (MSL), is an analytical...

Briefs: Information Technology
Semi-Supervised Eigenbasis Novelty Detection

Recent discoveries in high-time-resolution radio astronomy data have focused attention on a new class of events. Fast transients are rare pulses of radio frequency energy lasting from microseconds to seconds that might be produced by a variety of exotic astrophysical phenomena. For example, X-ray...

Briefs: Medical
Nanoscale Surface Plasmonics Sensor With Nanofluidic Control

Conventional quantitative protein assays of bodily fluids typically involve multiple steps to obtain desired measurements. Such methods are not well suited for fast and accurate assay measurements in austere environments such as spaceflight and in the aftermath of disasters....

Briefs: Medical
Portable Intravenous Fluid Production Device for Ground Use

There are several medical conditions that require intravenous (IV) fluids. Limitations of mass, volume, storage space, shelf-life, transportation, and local resources can restrict the availability of such important fluids. These limitations are expected in long-duration space...

Application Briefs: Motion Control

Pressure controllers from Alicat Scientific have been selected for use in NASA sounding rockets to control payload attitude. The payload sections of some NASA...

Briefs: Manufacturing & Prototyping
Improvements in Cold-Plate Fabrication

Five improvements are reported in cold-plate fabrication. This cold plate is part of a thermal control system designed to serve on space missions.

Briefs: Physical Sciences
180-GHz Interferometric Imager

A 180-GHz interferometric imager uses compact receiver modules, combined high- and low-gain antennas, and ASIC (application specific integrated circuit) correlator technology, enabling continuous, all-weather observations of water vapor with 25-km resolution and 0.3-K noise in 15 minutes of observation for...

Briefs: Mechanical & Fluid Systems
Compact, Two- Sided Structural Cold Plate Configuration

In two-sided structural cold plates, typically there is a structural member, such as a honeycomb panel, that provides the structural strength for the cold plates that cool equipment. The cold plates are located on either side of the structural member and thus need to have the cooling fluid...

Briefs: Physical Sciences
Catalytic Microtube Rocket Igniter

Devices that generate both high energy and high temperature are required to ignite reliably the propellant mixtures in combustion chambers like those present in rockets and other combustion systems. This catalytic microtube rocket igniter generates these conditions with a small, catalysis-based torch. While...

Briefs: Manufacturing & Prototyping
Thermal Control Method for High-Current Wire Bundles by Injecting a Thermally Conductive Filler

A procedure was developed to inject thermal filler material (a paste-like substance) inside the power wire bundle coming from solar arrays. This substance fills in voids between wires, which enhances the heat path and reduces wire temperature. This...

Briefs: Physical Sciences

The idea of designing a microfluidic channel to slope upward along the direction of flow of the liquid in the channel has been conceived to help prevent trapping of gas bubbles...

Briefs: Mechanical & Fluid Systems

A class of self-adjusting injectors for spraying liquid oxidizers and/or fuels into combustion chambers has been proposed. The proposed injectors were originally intended for use in...

Briefs: Physical Sciences
Gas Flow Detection System

This system provides a portable means to detect gas flow through a thin-walled tube without breaking into the tubing system. The flow detection system was specifically designed to detect flow through two parallel branches of a manifold with only one inlet and outlet, and is a means for verifying a space shuttle program...

Briefs: Manufacturing & Prototyping
Discrete Fourier Transform Analysis in a Complex Vector Space

Alternative computational strategies for the Discrete Fourier Transform (DFT) have been developed using analysis of geometric manifolds. This approach provides a general framework for performing DFT calculations, and suggests a more efficient implementation of the DFT for applications...

Briefs: Mechanical & Fluid Systems

A multiple-throat venturi system has been invented for measuring laminar flow of air or other gas at low speed (1 to 30 cm/s) in a duct while preserving the laminar nature of the flow and keeping...

Briefs: Mechanical & Fluid Systems

An apparatus is being developed for sampling water for signs of microbial life in an ocean hydrothermal vent at a depth of as much as 6.5 km. Heretofore, evidence of microbial life in deep-sea hydrothermal...

Briefs: Manufacturing & Prototyping

A microfluidic system has been designed to survive spaceflight and to function autonomously on the Martian surface. It manipulates microscopic quantities of liquid water and...

Articles: Mechanical & Fluid Systems
Cargo Management System Jeremy Connell
Blacksburg, VA

Standard truck beds lack the ability to secure loose items easily. The Cargo Management System...

Briefs: Manufacturing & Prototyping
Manufacture of Regularly Shaped Sol-Gel Pellets

An extrusion batch process for manufacturing regularly shaped sol-gel pellets has been devised as an improved alternative to a spray process that yields irregularly shaped pellets. The aspect ratio of regularly shaped pellets can be controlled more easily, while regularly shaped pellets pack more...

Briefs: Physical Sciences
Flexible Metal-Fabric Radiators

Flexible metal-fabric radiators have been considered as alternative means of dissipating excess heat from spacecraft and space suits. The radiators also may be useful in such special terrestrial applications as rejecting heat from space-suit-like protective suits worn in hot work environments. In addition to...

Briefs: Materials
Lightweight, Rack-Mountable Composite Cold Plate/Shelves

Rack-mountable composite-material structural components that would serve as both shelves and cold plates for removing heat from electronic or other equipment mounted on the shelves have been proposed as lightweight alternatives to allmetal cold plate/shelves now in use. A proposed cold...

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