Briefs: Medical
Optoelectronic pH Meter: Further Details
A collection of documents provides further detailed information about an optoelectronic instrument that measures the pH of an aqueous cell-culture medium to within ±0.1 unit in the range from 6.5 to 7.5. The instrument at an earlier stage of development was reported in “Optoelectronic Instrument...
Briefs: Mechanical & Fluid Systems
X-38 Advanced Sublimator
A document discusses a heat rejection device for transferring heat from a space vehicle by venting water into space through the use of a novel, two-stage water distribution system. The system consists of two different, porous media that stop water-borne contaminants from clogging the system and causing operational...
Briefs: Physical Sciences
Solar Simulator Represents the Mars Surface Solar Environment
A report discusses the development of a Mars surface, laboratory-based solar simulator to create solar cells that can function better on Mars. The Mars Optimized Solar cell Technology (MOST) required defining the surface incident spectrum, developing an appropriate laboratory solar...
Briefs: Physical Sciences
Solar Rejection Filter for Large Telescopes
To reject solar radiation photons at the front aperture for large telescopes, a mosaic of large transmission mode filters is placed in front of the telescope or at the aperture of the dome. Filtering options for effective rejection of sunlight include a smaller filter down-path near the focus of the...
Briefs: Materials
The separation of serum or plasma from whole blood is of overriding importance in clinical chemistry. In particular, many diagnostic detection reactions of blood components...
Briefs: Software
Quantifying Therapeutic and Diagnostic Efficacy in 2D Microvascular Images
VESGEN is a newly automated, userinteractive program that maps and quantifies the effects of vascular therapeutics and regulators on microvascular form and function. VESGEN analyzes two-dimensional, black and white vascular images by measuring important vessel morphology...
Briefs: Electronics & Computers
Free-Space Optical Interconnect Employing VCSEL Diodes
Sensor signal processing is widely used on aircraft and spacecraft. The scheme employs multiple input/output nodes for data acquisition and CPU (central processing unit) nodes for data processing. To connect 110 nodes and CPU nodes, scalable interconnections such as backplanes are desired...
Briefs: Energy
Lattice-Matched Semiconductor Layers on Single Crystalline Sapphire Substrate
SiGe is an important semiconductor alloy for high-speed field effect transistors (FETs), high-temperature thermoelectric devices, photovoltaic solar cells, and photon detectors. The growth of SiGe layer is difficult because SiGe alloys have different lattice constants...
NASA Tech Needs
Stennis Space Center is NASA’s primary center for rocket engine testing. The facilities include large test stands built for the Apollo Program that are being used to test Space Shuttle Main...
Products: Electronics & Computers
General Micro Systems (Rancho Cucamonga, CA) has introduced the “Raider” S705 Core 2 Duo®-based system. Raider is based on the GMS P70x module, a Core 2 Duo processor providing up to 2.16 GHz of power and 4 MB...
Products: Electronics & Computers
Unitronics (Quincy, MA) has added the V570-57-T20B to the company’s Vision570™ series of 5.7” Color Touchscreen PLCs. The model is lower in cost and has a white LED instead of fluorescent display backlight. The...
Products: Electronics & Computers
Stealth.com Inc. (Ontario, Canada) has released the Stealth TT-840, a rugged, environmentally sealed LCD monitor for harsh environments. The TT-840 is an 8.4 inch sunlight-readable LCD encapsulated in a...
Products: Electronics & Computers
The TX37 Freescale i.MX37 processor-based System on Module (SOM) from Strategic Test (Woburn, MA) measures just 67.6mm x 26mm x 4.2 mm. It contains a 532 MHz i.MX37 processor coupled with 128 MB mobile DDRSDRAM,...
Products: Electronics & Computers
Advantech (Cincinnati, OH) introduces the TPC-1780H, a 17" SXGA TFT LCD fanless touch panel PC with an Intel® Core™ 2 Duo CPU. The TPC-1780H provides one extension slot, such as RS-422/485, PCI-104, and...
Products: Electronics & Computers
Xilinx (San Jose, CA) introduces the ISE® Design Suite 11.1, an FPGA design solution with fully interoperable domain-specific design flows and tool configurations for logic, digital signal processing (DSP), embedded...
Products: Electronics & Computers
Fairchild Semiconductor (San Jose, CA) has introduced the RD212, a 200W DC/DC power supply reference design that offers high efficiency (up to 94 percent), and low noise characteristics due to its zero voltage...
Briefs: Information Technology
Active Learning With Irrelevant Examples
An improved active learning method has been devised for training data classifiers. One example of a data classifier is the algorithm used by the United States Postal Service since the 1960s to recognize scans of handwritten digits for processing zip codes. Active learning algorithms enable rapid training...
Briefs: Information Technology
Progressive Classification Using Support Vector Machines
An algorithm for progressive classification of data, analogous to progressive rendering of images, makes it possible to compromise between speed and accuracy. This algorithm uses support vector machines (SVMs) to classify data. An SVM is a machine learning algorithm that builds a...
Application Briefs: Photonics/Optics
For 3D viewing to be convenient on small, portable devices, it must be autostereoscopic, thus eliminating the requirement for 3D “glasses.” The display devices must also provide 2D and 3D...
Briefs: Photonics/Optics
Solar Rejection Filter for Large Telescopes
To reject solar radiation photons at the front aperture for large telescopes, a mosaic of large transmission mode filters is placed in front of the telescope or at the aperture of the dome. Filtering options for effective rejection of sunlight include a smaller filter down-path near the focus of the...
Briefs: Photonics/Optics
Free-Space Optical Interconnect Employing VCSEL Diodes
Sensor signal processing is widely used on aircraft and spacecraft. The scheme employs multiple input/output nodes for data acquisition and CPU (central processing unit) nodes for data processing. To connect 110 nodes and CPU nodes, scalable interconnections such as backplanes are desired...
Products: Photonics/Optics
Marshall’s Industrial and Security Division (El Segundo, CA) has developed a new series of pinhole lenses designed to protect employees when monitoring high temperature and/or hostile...
Briefs: Photonics/Optics
Two recipes for ensuring critical coupling between a single-mode optical fiber and a whispering-gallery-mode (WGM) optical resonator have been devised. The recipes provide for phase...
Products: Photonics/Optics
The Specialised Imaging Shadowgraph (SIS) camera from Specialised Imaging (Tring, UK) enables high resolution digital imaging of ultra-fast events in ambient and low-light environments. Integrating this camera with an...
Products: Photonics/Optics
Laser Components (Hudson, NH) offers solid state laser coatings with high damage thresholds, including coatings for Q-switched lasers at 1064 nm, 532 nm, 355 nm, or 266 nm. Coatings for short pulse...
Products: Photonics/Optics
Optical Surfaces Ltd (Surrey, UK) can generate highly aspheric parabolic mirrors with off-axis angles approaching 30 degrees and focal lengths as short as 100mm. They can also fabricate high-performance...
Products: Photonics/Optics
Toshiba Teli America (Irvine, CA) has introduced the CS8581QF, a remote-head FireWire camera system for high-speed industrial imaging. The CS8581QF offers 133 fps at full 640 × 480 resolution (8bit monochrome),...
Products: Photonics/Optics
The SC-3 Sub-Miniature Resonant Optical Scanner from Electro-Optical Products (Fresh Meadows, NY) is an electromagnetically driven moving mirror device that deflects a light beam with a continuous...
Products: Photonics/Optics
The CMOS camera models ProgRes® CT1, CT3 and CT5 from Jenoptik (Jena, Germany) are now equipped with USB interface. With an extended resolution up to 5 Megapixel and a live frame rate up to 20 fps the new USB Camera of...
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Tech Update: 3D Printing for Transportation in 2024
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Unleashing Epoxy's Potential: Ensuring Hermetic Sealing in Modern...
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