Special Coverage

Supercomputer Cooling System Uses Refrigerant to Replace Water
Computer Chips Calculate and Store in an Integrated Unit
Electron-to-Photon Communication for Quantum Computing
Mechanoresponsive Healing Polymers
Variable Permeability Magnetometer Systems and Methods for Aerospace Applicationst
Evaluation Standard for Robotic Research
Small Robot Has Outstanding Vertical Agility
Smart Optical Material Characterization System and Method
Lightweight, Flexible Thermal Protection System for Fire Protection
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Silicon Micro-Emitters for Microfluidic Electrospray Propulsion Systems

Advances in microfabrication capabilities are enabling the development of micro-needles for highly compact electrospray systems.JPL's Microfluidic Electrospray Propulsion (MEP) thruster design is based on a microfabricated electrospray system with a capillary-force-driven feed system that uses indium metal as the propellant. This architecture provides an extremely compact, modular system scalable to a wide range of applications from micro spacecraft to large, space-based telescopes.

Posted in: Briefs, Manufacturing & Prototyping, Architecture, Microelectromechanical devices, Propellants, Spacecraft fuel, Silicon alloys

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Hybrid Flow Control Method for Simple Hinged Flap High-Lift System

This approach combines sweeping jet actuators for active flow control and adaptive vortex generators for passive flow control.NASA's Langley Research Center has created a novel process that significantly improves the effectiveness of high-lift devices on aircraft wings by utilizing a hybrid concept of both sweeping jet (SWJ) actuators for active flow control (AFC) and adaptive vortex generators (AVGs) for passive flow control. High-lift technology reshapes aircraft wings for more lift during takeoff and landing. Conventional high-lift devices are complex and employ a significant number of parts. In addition, these complex mechanical high-lift systems (e.g., Fowler flap mechanisms) often protrude externally under the wings, resulting in increased cruise drag. Simple hinged flaps are preferable high-lift devices for low-drag cruise performance, but they are vulnerable to flow separation at high flap deflections for both trailing edge and leading edge applications. This innovation achieves higher flap deflections without flow separation while minimizing the pneumatic power requirement of AFC.

Posted in: Briefs, Aeronautics, Aerospace, Wings, Electronic control systems, Sensors and actuators, Performance upgrades

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New Products — March 2017 Sensor Techonology

Shape SensorOFS, (Norcross, GA) has developed a shape sensor fiber. The technology platform produces twisted multicore optical fiber with continuous FBGs (Fiber Bragg Gratings). The sensor meets 3D shape sensing specifications, such as twist rate, coating concentricity, grating reflectivity, and grating spacing. Continuous gratings are written without stripping and recoating the fiber.

Posted in: Products, Sensors

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How Digital Image Correlation Impacts Design

If you want to analyze the deformation of an object under load, you may reach for a handful of strain gauges and similar sensors. But there is a better way to assess load response.

Posted in: On-Demand Webinars, Imaging

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Can augmented reality reduce "road rage?"

This week’s Question: A new "CarNote" app from the Eindhoven University of Technology in the Netherlands aims to use augmented reality to improve the driving experience and reduce "road rage." CarNote's driver-facing periscope lens and transparent display projects information from a smartphone, allowing users behind the wheel to communicate and signal intentions. For example, a driver in a rush to a hospital could notify those in nearby vehicles, potentially reducing aggressive behavior like confrontations or honking the horn. The technology even has a "like" system that allows drivers to register or rate fellow travelers on the road. What do you think? Can augmented reality reduce "road rage?"

Posted in: Question of the Week, Simulation Software, Automotive

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'Tougher-than-Metal' Hydrogels Support New Biomaterials

Scientists from Japan's Hokkaido University have created tough hydrogels combined with woven fiber fabric. The "fiber-reinforced soft composite" fabrics are highly flexible, stronger than metals, and can support a number of potential applications, including artificial ligaments and tendons subjected to load-bearing tension.

Posted in: News, Materials

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Additive Manufacturing for Composite Tooling

Learn how 3D printing with FDM technology makes the production of composite tooling faster, more agile and less costly. Listen in as Tim Schniepp, Stratasys business development director for composite tooling, explains the benefits and capabilities of FDM composite tooling, including examples of customers who successfully use this application.

Posted in: On-Demand Webinars, Manufacturing & Prototyping

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