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Briefs
Test & Measurement

Pulsed Exposure Toxicity Testing: Method Development and Initial Evaluation for Stormwater Compliance

Preliminary research into modifying whole effluent toxicity testing protocols designed for continuous flow discharges as applied to episodic and/or ephemeral discharges such as those associated with storm water runoff.

Articles
Unmanned Systems

Using Underwater Robotics for Autonomous Deep-Sea Exploration

A decade ago, industries that needed to perform underwater inspection and maintenance had only one option: send a human diver into the water. In both the military and commercial...

Articles
Robotics, Automation & Control

Developing Object Detection Systems for Autonomous Underwater Vehicles

Truly autonomous UAVs will require computer vision and navigation, cooperation between autonomous vehicles, and explainable and robust AI.

Briefs
RF & Microwave Electronics

Coastal Lidar and Radar Imaging System (CLARIS) Lidar Data Report

The Army analyzed shoreline change, dune volume, beach volume, beach slope, and cumulative elevation change along the northern Outer Banks of North Carolina.

Briefs
RF & Microwave Electronics

Development and Testing of a New Version of MBUD for Cued Classification of Marine UXO

MBUD has a new data acquisition system and incorporates technical modifications to eliminate the noise encountered in seawater.

Articles
Data Acquisition

Ruggedization of Electronics for Deployed Military Environments

Commercial-grade electronics will simply not survive in the extremes of military environments.

Briefs
Electronics & Computers

Evaluation of the Effects of Hydrogen Peroxide on Common Aircraft Electrical Materials

A study aims to find a suitable decontaminant that can be used successfully in complex transportation vehicles with no negative impact on sensitive electronic equipment.

Briefs
Defense

Feasibility Study of Portable Water Desalination Systems for Water Contingencies at Remote Navy Installations

The Navy is exploring ways to ensure an uninterrupted supply of potable water at remote installations.

News
Manned Systems

Boeing Reports on Its Environmental Efforts

In its 2019 Global Environment report, the Boeing Company provides an update on the environmental strategy the company unveiled last year. The strategy identifies 2025 as a target year to...

Briefs
Aerospace

Custom Data Logger for Real-Time Remote Field Data Collections

The U.S. Army Corps of Engineers (USACE), CHL, FRF, had a need for a remote real-time data collection system to control instruments and log and communicate data from five...

Briefs
Materials

Hydrodynamic Drag Force Measurement of a Functionalized Surface Exhibiting Superhydrophobic Properties

With superhydrophobic properties being extended to a variety of metallic substrates through the process of ablation due to femto-second...

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...

Briefs
Aerospace

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...

Articles
Unmanned Systems

Applying UUV Advances to Safeguard Harbors and Littoral Waters

Advances in unmanned underwater vehicles (UUVs) are providing government agencies and commercial organizations with new capabilities across a variety of mission requirements....

Application Briefs
Defense

Floating Armor Torso System

BCB International Ltd.
Cardiff, UK
+44 (0)2920 433 700
www.bcbin.com

A Floating Armor Torso System (FATS), designed for marine-based forces, inflates when coming into contact with water. If the...

Articles
Weapons Systems

Submersion and Directed Flow Cooling Technology for Military Applications

As the US military shifts from boots on the ground to drones in the sky, there will be an increasing need for computing power on foreign soil, under the sea and in the...

Articles
Aerospace

Using RF Technology to Form a Wireless Network Under Water

Consumers have shown that they are eager to be rid of cabling and wires connecting them to devices situated or worn near or on the body. From athletic monitoring devices to...

Application Briefs
RF & Microwave Electronics

Microwave Radiometers Help Keep Aircraft Safe From Icing

One of the greatest dangers to aircraft — playing a role in numerous destructive and fatal accidents around the world — comes in the form of droplets of water. In clean air, cloud...

Briefs
Physical Sciences

Acoustic Detection Using Reverberation

Acoustic detection of undersea objects is difficult due to the uncertain environment and even more difficult when the objects are buried in the seabed. First, sediments generate high backscattering noise due to heterogeneous scatters within the sediments, clouding the object.

Briefs
Materials

Fire Resistance of Geopolymer Concretes

Geopolymer concrete has been proposed as an alternative to Portland cement concrete in applications requiring high degrees of fire resistance, because the intrinsic chemistry of the geopolymer binder...

Briefs
Manufacturing & Prototyping

Solution Deposition Methods for Carbon Nanotube Field-Effect Transistors

Extensive research has been done on carbon nanotube field-effect transistors (CNTFETs), which may revolutionize electronics. Single-walled carbon nano-tubes (SWNTs) act...

Briefs
Mechanical & Fluid Systems

Water Mist System for Shipboard Machinery Space Fires

Water mist has been determined to be a preferred alternative to Halon 1301 total flooding to extinguish fires occurring in ship machinery spaces and pump rooms, because it is...

Briefs
Information Technology

Planning Observations by Unmanned Surface Vessels

Three algorithms, and software that implements the algorithms, have been conceived and analyzed as means of effecting automated planning of scientific observations by a fleet of unmanned...

Briefs
Materials

Making Ultra-Hydrophobic Textured Silicone-Rubber Surfaces

Silicone-rubber surfaces microscopically textured in such a manner as to render them ultra-hydrophobic have been fabricated by a method in which breath figures are utilized....

Briefs
Photonics/Optics

Compact Megawatt Infrared Free-Electron Laser Amplifier

A proposed high-gain free-electron laser (FEL) amplifier, conceived primarily for use in a maritime environment, would be capable of average output power of the order of a megawatt at...

Briefs
Materials

Low-Water-Permeability Encapsulants for Acoustic Sensors

Afamily of improved encapsulating materials for protecting underwater acoustic sensors has been invented. These materials could also be used for encapsulation or protective coating of...

Briefs
Electronics & Computers

Miniature Semiconductor Diodes as Pumps and Motors

Experiments have shown that when a miniature semiconductor diode floats in an aqueous solution and an alternating electric field is applied, (1) the diode rectifies the alternating potential...

Briefs
Physical Sciences

Progress in Research on Bacteria-Powered Motors

Progress has been made on several fronts in research on biomotors and especially on microscopic motors powered by bacteria. The progress consists mostly of advances in the art of attaching motile bacterial cells to surfaces in specific, pre-designed microarrays.

Articles
Defense

Perspective - Colonel Lewis F. Setliff III

Colonel Lewis F. Setliff III
Commander/District Engineer, St. Louis District
U.S. Army Corps of Engineers

In August of 2005, Hurricane Katrina hit the Gulf Coast and became one of the...