Inside this issue
Supplements
Features
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Application Briefs
52 Advancing Hybrid-Electric Propulsion Systems for Sustainable Flight
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5 Ws
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Facility Focus
56 Facility Focus: University of Michigan College of Engineering
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NASA Spinoff
Tech Briefs
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Test & Measurement
28 All-in-One Test for COVID-19 Monitoring
28 LEDs Can Detect Spoiled Food and Lethal Gases
30 Inexpensive Portable Detector Identifies Pathogens in Minutes
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Bio-Medical
46 Handheld 3D Skin Printer Accelerates Healing of Burns
46 Wearable Patch to Treat Melanoma
47 Tool Can Diagnose Strokes with a Smartphone
48 Soft Contact Lenses Monitor Ocular Diseases
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Software
50 Computer Vision App for Monitoring Diabetes
50 AI Technology Foils Cyberattacks
51 Simulations Provide Understanding of Spacecraft Landing Dynamics
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Materials
33 Woven Nanotube Fibers Turn Heat into Power
33 Three-Layer Method Makes Plastic More Transparent and Adds Electrical Conductivity
34 Liquid Metal Coating Creates Effective Antiviral, Antimicrobial Fabric
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Electronics & Computers
22 Self-Sustaining, Intelligent Electronic Microsystems from “Green” Material
22 Sensitive Method for Detecting Transistor Defects
24 Turning Thermal Energy into Electricity
25 Charging Room System Provides Electricity Over the Air
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Propulsion
38 Power Processing Unit for Small Spacecraft Electric Propulsion
38 Process Converts Ethanol to Jet Fuel
39 Propulsion System for Hypersonic Flight
40 Simple, Fuel-Efficient Rocket Engine for Cheaper, Lighter Spacecraft
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Sustainable Technologies
42 3D-Printed Graphene Aerogels for Water Treatment
43 Gel-Like Fluid Prevents Wildfires
43 Self-Powered Alarm Monitors Fires and the Environment
44 Tires and Building Rubble Combine to Form a Sustainable Road-Making Material
Products
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Briefs
21 NIST Improves the Ability of Optical Microscopes to Measure the Volume of Microdroplets
22 New Device Modulates Visible Light with the Smallest Footprint and Lowest Power Consumption
23 Using Magnets to Toggle Nanolasers Leads to Better Photonics
24 Artificial Intelligence Magnifies the Utility of Electron Microscopes
25 An Innovative Imaging Technique for Dynamic Optical Nanothermometry
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Applications
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Articles
2 A Primer on Solid-State Lasers
5 500°C-Rated Optical Fiber for High Temperature Applications
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Technology Leaders
8 An Alternative Approach to 3D Reconstruction
10 How Indium Gallium Arsenide (InGaAs) Improves SWIR Sensing
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Products
26 New Products
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Briefs
16 Neural Implant Monitors Multiple Brain Areas at Once
17 Wirelessly Power Multiple Wearable Devices Using a Single Source
18 Nanoscale Sensors Measure Elusive Water Levels in Leaves
19 New Thermal Wave Diagnostic Technique Advances Battery Performance Testing
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Articles
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Applications
9 Protecting the U.S. Electric Grid with Physics-Based Cybersecurity
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Products
21 New Products
