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Briefs: Manufacturing & Prototyping
Ridge Waveguide Structures in Magnesium-Doped Lithium Niobate
This work proposes to establish the feasibility of fabricating isolated ridge waveguides in 5% MgO:LN. Ridge waveguides in MgO:LN will significantly improve power handling and conversion efficiency, increase photonic component integration, and be well suited to space-based applications....
Briefs: Manufacturing & Prototyping
Material Gradients in Oxygen System Components Improve Safety
Oxygen system components fabricated by Laser Engineered Net Shaping™ (LENS™) could result in improved safety and performance. LENS™ is a near-net shape manufacturing process fusing powdered materials injected into a laser beam. Parts can be fabricated with a variety of elemental...
Briefs: Mechanical & Fluid Systems
Method for Cleanly and Precisely Breaking Off a Rock Core Using a Radial Compressive Force
The Mars Sample Return mission has the goal to drill, break off, and retain rock core samples. After some results gained from rock core mechanics testing, the realization that scoring teeth would cleanly break off the core after only a few millimeters of...
Briefs: Mechanical & Fluid Systems
Scoring Dawg Core Breakoff and Retention Mechanism
This novel core break-off and retention mechanism consists of a scoring dawg controlled by a set of two tubes (a drill tube and an inner tube). The drill tube and the inner tube have longitudinal concentric holes. The solution can be implemented in an eccentric tube configuration as well where the...
Briefs: Mechanical & Fluid Systems
Sampling cores requires the controlled breakoff of the core at a known location with respect to the drill end. An additional problem is designing a mechanism that can be implemented...
Briefs: Mechanical & Fluid Systems
Sampling cores requires the controlled breakoff of the core at a known location with respect to the drill end. An additional problem is designing a mechanism that can be implemented at a small...
Briefs: Mechanical & Fluid Systems
Vibration Isolation and Stabilization System for Spacecraft Exercise Treadmill Devices
A novel, passive system has been developed for isolating an exercise treadmill device from a spacecraft in a zero-G environment. The Treadmill 2 Vibration Isolation and Stabilization System (T2-VIS) mechanically isolates the exercise treadmill from the...
Articles: Robotics, Automation & Control
Hydraulic steering systems have long dominated the industrial utility vehicle market because of their familiarity both to vehicle designers and...
Application Briefs: Robotics, Automation & Control
How do you test the behavior of different soil structures in an earthquake? Obviously, large earthquakes don’t happen often, and they certainly don’t happen on cue. The solution,...
Briefs: Medical
Microgravity-Enhanced Stem Cell Selection
Stem cells, both embryonic and adult, promise to revolutionize the practice of medicine in the future. In order to realize this potential, a number of hurdles must be overcome. Most importantly, the signaling mechanisms necessary to control the differentiation of stem cells into tissues of interest remain...
Briefs: Medical
Diagnosis and Treatment of Neurological Disorders by Millimeter-Wave Stimulation
Increasingly, millimeter waves are being employed for telecomm, radar, and imaging applications. To date in the U.S, however, very few investigations on the impact of this radiation on biological systems at the cellular level have been undertaken. In the beginning, to...
Briefs: Physical Sciences
Multi-point, multi-axis measurement of position can be valuable in a variety of applications that require high-speed data acquisition and a high degree of...
Briefs: Physical Sciences
Passive Vaporizing Heat Sink
A passive vaporizing heat sink has been developed as a relatively lightweight, compact alternative to related prior heat sinks based, variously, on evaporation of sprayed liquids or on sublimation of solids. This heat sink is designed for short-term dissipation of a large amount of heat and was originally intended for...
Briefs: Physical Sciences
Remote Sensing and Quantization of Analog Sensors
This method enables sensing and quantization of analog strain gauges. By manufacturing a piezoelectric sensor stack in parallel (physical) with a piezoelectric actuator stack, the capacitance of the sensor stack varies in exact proportion to the exertion applied by the actuator stack. This, in turn,...
Briefs: Physical Sciences
Helium-Cooled Black Shroud for Subscale Cryogenic Testing
This shroud provides a deep-space simulating environment for testing scaled-down models of passively cooling systems for spaceflight optics and instruments. It is used inside a liquid-nitrogen-cooled vacuum chamber, and it is cooled by liquid helium to 5 K. It has an inside geometry of...
Briefs: Physical Sciences
Phase Retrieval for Radio Telescope and Antenna Control
Phase-retrieval is a general term used in optics to describe the estimation of optical imperfections or “aberrations.” The purpose of this innovation is to develop the application of phase retrieval to radio telescope and antenna control in the millimeter wave band.
Briefs: Information Technology
Receive Mode Analysis and Design of Microstrip Reflectarrays
Traditionally microstrip or printed reflectarrays are designed using the “transmit mode” technique. In this method, the size of each printed element is chosen so as to provide the required value of the reflection phase such that a collimated beam results along a given direction. The...
Briefs: Information Technology
Chance-Constrained Guidance With Non-Convex Constraints
Missions to small bodies, such as comets or asteroids, require autonomous guidance for descent to these small bodies. Such guidance is made challenging by uncertainty in the position and velocity of the spacecraft, as well as the uncertainty in the gravitational field around the small body. In...
News: Green Design & Manufacturing
Acoustics researchers at the University of Adelaide in Australia are developing a computer model to predict the noise output from wind farms so they can accurately and quickly assess the effectiveness of...
INSIDER Product: Electronics & Computers
The ZT8540 I/Q Digitizer from ZTEC Instruments (Albuquerque, NM) functions as a baseband Vector Signal Analyzer (VSA) from DC to 300 MHz. This new baseband VSA provides the signal fidelity and real-time processing capabilities...
INSIDER Product: Electronics & Computers
MathWorks (Natick, MA) has announced the availability of MATLAB Coder, which
enables design engineers to automatically generate readable, portable C and
C++ code directly from their MATLAB algorithms. This new product...
INSIDER Product: Electronics & Computers
Meggitt Sensing Systems (San Juan Capistrano, CA) has introduced the Endevco® model 133, a three-channel general purpose piezoelectric signal conditioner with a wide bandwidth of 100 KHz (-3 dB corner),...
INSIDER Product: Electronics & Computers
Allegro MicroSystems (Worcester, MA) has announced two new robust automotive grade buck regulators with high switching frequency and output current, each integrating a low resistance, high-side, N-channel MOSFET....
INSIDER Product: Electronics & Computers
Elan Digital System’s (Fareham, UK) USBHC869 USB interface chip now has a Demonstrator PCB including SDK driver code to help engineers simplify and speed up the development task of implementing the capability of the...
Supplements: Software
Comsol News - 2011
In the following user stories, nineteen diverse high-tech organizations showcase how their adoption of COMSOL Multiphysics has led to new product designs and research findings.
Table of Contents // COMSOL NEWS 2011
FEATURES
Multiphysics 4 Multiphysics Analysis of a Burning Candle 5 Capacitively Coupled Plasma Analysis ...
Briefs: Energy
A design of a highly efficient and lightweight space magnetic cooler has been developed at Goddard Space Flight Center that can continuously provide remote/distributed cooling at temperatures in the range of 2 K with a heat sink at about 15 K. The innovative design uses a cryogenic circulator that enables the cooler to operate at a high cycle frequency to achieve a large cooling capacity.
Briefs: Green Design & Manufacturing
Polymer nanofibers are nanoscale materials whose properties can be adjusted to provide desirable light management performance for high efficiency solid-state lighting...
News: Green Design & Manufacturing
An international team of scientists led by a team at Monash University of Melbourne, Australia has found that the key to the hydrogen economy could come from a very simple mineral -...
News: Energy
Advanced biofuels are highly touted as potential replacements for gasoline, diesel, and jet fuels. Equally touted is the synthesis of these fuels through the use of microbes. However, many...
Top Stories
Blog: Manufacturing & Prototyping
2025 Holiday Gift Guide for Engineers: Tech, Tools, and Gadgets
Blog: Power
Using Street Lamps as EV Chargers
INSIDER: Semiconductors & ICs
Scientists Create Superconducting Semiconductor Material
Blog: Materials
This Paint Can Cool Buildings Without Energy Input
Blog: Software
Quiz: Power
Webcasts
Upcoming Webinars: AR/AI
The Real Impact of AR and AI in the Industrial Equipment Industry
Upcoming Webinars: Motion Control
Next-Generation Linear and Rotary Stages: When Ultra Precision...
Podcasts: Manufacturing & Prototyping
SAE Automotive Engineering Podcast: Additive Manufacturing
Podcasts: Defense
A New Approach to Manufacturing Machine Connectivity for the Air Force
On-Demand Webinars: Manufacturing & Prototyping
Streamlining Manufacturing with Integrated Digital Planning and Simulation
On-Demand Webinars: Automotive
