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Briefs
Photonics/Optics

Stimulated Brillouin Scattering (SBS) Suppression and Long Delivery Fibers at the Multikilowatt Level with Chirped Seed Lasers

One obstacle in the scaling of high-power fiber lasers arises because of nonlinear effects (e.g., stimulated...

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Briefs
Photonics/Optics

Erbium Doped GaN Lasers by Optical Pumping

The main objective of this research was to construct an optical pump system that would allow the study of Er:GaN materials under 980 nm resonant excitation to be carried out. The results obtained from...

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Briefs
Photonics/Optics

New Class of Excimer-Pumped Atomic Lasers (XPALS)

The focus of this research program was the investigation of XPAL properties, and new pumping schemes, as well as modeling, and measuring critical photoionization and excited state-excited state...

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News
Mechanical & Fluid Systems

Venturi Effect Powers Dayco's New Brake-Assist System

A unique twist on a basics physics principle provides a fuel efficiency boost to more than 188,000 full-size pickup trucks fitted with the innovative brake-assist technology, known as...

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Technology Report
RF & Microwave Electronics

U.S. Dept. of Transportation Issues New Autonomous-Vehicle Guidelines

It’s only a suggestion, the U.S. Dept. of Transportation and its National Highway Traffic Safety Admin. said, but it’s what the auto and tech industries have been...

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Technology Report
Electronics & Computers

Continental Unveils New 3D Display Cluster

Continental is developing its innovative 3D instrument display cluster with the aim of bringing it to production within the next 24-36 months. The display, previewed by Automotive Engineering at a...

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Technology Report
Electronics & Computers

Digitalization Extends Simulation into Factories

The role of digital data is expanding rapidly, extending to the equipment on the factory floor after coming into dominance in the design of everything from components to end vehicles....

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Technology Report
Materials

Federal-Mogul Reveals Cool Solutions for Downsized Engines

At the 2017 IAA motor show in Frankfurt, Federal-Mogul Powertrain plans to reveal advances aimed at cooling the valves of downsized boosted engines via significant heat transfer....

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Briefs
Aerospace

Assessment of Non-Traditional Isotopic Ratios by Mass Spectrometry for Analysis of Nuclear Activities

The objective of this work is to identify isotopic ratios suitable for analysis via mass spectrometry that distinguish between commercial...

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Briefs
Defense

Coupling of Coastal Wave Transformation and Computational Fluid Dynamics Models for Seakeeping Analysis

This research focused on depth-integrated modeling of coastal wave and surf-zone processes in support of computational fluid dynamics (CFD) simulation of ship motions. There were two components of the project. The first was the development of a...

Briefs
Test & Measurement

Vapor Pressure Data and Analysis for Selected Organophosphorous Compounds: DIBMP, DCMP, IMMP, IMPA, EMPA, and MPFA

Knowledge of the physical properties of materials is critical for understanding their behavior in the environment as well as in...

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Briefs
Aerospace

Combustion Characteristics of Hydrocarbon Droplets Induced by Photoignition of Aluminum Nanoparticles

In the study of combustion characteristics of liquid rocket fuels, it is customary to either study the combustion of liquid fuel droplets or...

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Briefs
Aerospace

Measuring Propellant Stress Relaxation Modulus Using Dynamic Mechanical Analyzer

Structural analysis of solid rocket motors is challenging for several reasons, but the most important of these is the complex behavior of the propellant. The...

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Technology Report
Electronics & Computers

U of M-Dearborn Students Engineer New Autonomous Shuttle System

Evolving to stay relevant in the fast-changing Engineering world is a challenge faced by every institution of higher learning. In 2013, educators at the University of...

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News
RF & Microwave Electronics

Reconfigurable Chip Usage Ramps up as ADAS Advances

Reconfigurable processors have seen growing use in rapidly-changing infotainment systems and are expanding into advanced driver assistance systems (ADAS). The role of field-programmable...

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Technology Report
Automotive

Repaired Carbon-Fiber Frame Can Be Stronger Than Original Structure

The American Chemistry Council (ACC) and researchers at Michigan State University (MSU) have demonstrated a new “reversible” adhesive for multi-material joining that...

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Technology Report

Tenneco Readies New Semi-Active Digital Suspension for 2020

One enduring challenge of work-truck engineering is how to make the vehicles ride and drive comfortably when unloaded without diminishing their vital hauling and towing...

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Technology Report
RF & Microwave Electronics

Developing High-Energy-Density Batteries for EVs

It’s been a long road for Nissan from its 1947 Tama EV to its advanced prototype ZEV BladeGlider sports car, but that road still stretches to—and far beyond—the technology horizon, as...

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Technology Report
Green Design & Manufacturing

New 90-Degree Turbo V6 Leads Audi's Hybridization Blitz

Audi’s all-new 3.0-L turbocharged gasoline V6, rated at 354 hp and 369 lb·ft (264 kW and 500 N·m, respectively) debuted recently in the 2018 SQ5 crossover. The V6 is the first...

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News
Automotive

Audi Details New A8 Active Suspension

Audi recently unveiled its all-new A8 flagship which now features a fully active, electromechanical suspension system. A front camera detects road irregularities and signals a predictive adjustment of...

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Technology Report
RF & Microwave Electronics

Delphi and Tula Show NVH Benefits from Dynamic Skip Fire

Delphi and partner Tula Technology have revealed test data showing NVH reduction benefits with use of their jointly-developed Dynamic Skip Fire (DSF) cylinder deactivation system...

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Briefs
Sensors/Data Acquisition

Determining Detection and Classification Potential of Munitions Using Advanced EMI Sensors in the Underwater Environment

Hazardous ordnance items are present along coastlines and in rivers and lakes in waters shallow enough to cause concerns...

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Briefs
Aerospace

Development of Photoacoustic Sensing Platforms

In recent years, photoacoustic spectroscopy (PAS) has emerged as an attractive and powerful technique well suited for sensing applications. The development of high-power radiation sources and more...

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Briefs
Aerospace

Imaging Detonations of Explosives

An effort has been made within the US Army Research Laboratory (ARL) to extract quantitative information on explosive performance from high-speed imaging of explosions. Explosive fireball surface temperatures...

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Briefs
Aerospace

Terahertz (THz) Radar: A Solution For Degraded Visibility Environments (DVE)

An accurate view of the physical world is frequently vital. For example, rotary wing aircraft pilots must have knowledge of the terrain in order to safely fly their...

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Briefs
Aerospace

High Energy Computed Tomographic Inspection of Munitions

An advance computed tomography (CT) system was recently built for the U.S. Army Armament Research, Development and Engineering Center, Picatinny Arsenal, NJ, for the inspection of...

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Briefs
Aerospace

Laser Integration on Silicon Photonic Circuits Through Transfer Printing

The purpose of this project was to develop a transfer printing process for the massively parallel integration of III-V lasers on silicon photonic integrated circuits....

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News
RF & Microwave Electronics

GKN Using Modular Control Algorithms for Added Systems’ Integration

At its Lohmar, Germany, R&D facility, GKN Driveline is creating modular control algorithms for new applications including integration of drivetrain software into a...

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News
Test & Measurement

Mahle Tests for 'Mega Knock' in Downsized Boosted Engines

Low Speed Pre Ignition (LSPI) is an abnormal combustion event with the potential to cause catastrophic damage to pistons and related components in downsized engines.

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