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  • Perchlorate-Free Pyrotechnic Composition | TechLink
    pyrotechnic compositions to remove perchlorate ingredients while maintaining good performance Ground water contamination by perchlorates has been found to be a serious problem in many areas around the world When perchlorates are present in drinking water they can inhibit the uptake of iodine by the thyroid gland leading to potentially serious health problems Particularly for fetuses and newborns these health problems can result in permanent neurological damage DoD Perchlorate Policy mandates site clean up if perchlorate concentration levels reach 24 5 PPB The most stringent state action levels are as low as 2 PPB The US fireworks industry uses 221 million pounds of perchlorate containing pyrotechnics annually and there are 20 to 40 million slower burning roadside distress flares sold annually Benefits Eliminates objectionable perchlorate ingredients Avoids costly clean up Provides equal or superior luminous intensities Excellent color characteristics Consistent batch to batch reproducibility Wide burn rate flexibility Available in three colors red green and yellow Ongoing research program The Opportunity Three US Patent Applications have been filed and are available for review under non disclosure agreement Additional patented technologies are available covering a safety flare ignition devices US Patents 6 588 343 6 679 174 and 6 634 301

    Original URL path: http://techlinkcenter.org/summaries/perchlorate-free-pyrotechnic-composition (2016-02-09)
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  • Well Design Specification (WDS) Software | TechLink
    design practices in favor of a one size fits all approach A filter pack design is required by ASTM D5092 however installers often avoid the costly and time consuming practices of soil sampling sieve analysis and referencing industry standards This becomes particularly true in situations where two mobilizations are needed to characterize the site and to install the well The cost savings is a false economy when measured against a well design that risks Turbid and improperly filtered samples Pump damage and Reduced yield and the loss of a filter pack Benefits This is a cost effective solution that supports good well installation practices Use of the WDS software Eliminates the need to collect soil samples or to deploy two mobilizations Saves time and money to meet the ASTM standard Yields specifications in real time AND from archived data for previously characterized sites Customizes multi level wells and drilled wells with depth specific intervals The Opportunity The WDS software allows a user to specify candidate depth ranges and then select the appropriate well design parameters for depths of interest Cone penetrometer types of sensors are used to yield data that the WDS software can translate for selection of appropriate filter pack and well screen slot size specifications at the proposed screen depth ranges WDS employs a conversion matrix based on synthetic grain size distribution curves corresponding to the probe sensor descriptors Instead of a probe snapshot WDS software gives a full profile for decision making The biggest advance in well design technology in 25 years I strongly believe this is a very useful tool that will save a lot of money and time in the future David M Nielson The Nielson Environmental Field School Inc David Nielson is a Certified Professional Geologist a Professional Hydrogeologist and a Certified Ground Water

    Original URL path: http://techlinkcenter.org/summaries/well-design-specification-wds-software (2016-02-09)
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  • Boat Capture System | TechLink
    craft with a trailer and launch or land under considerable power in rough water The components of this system can be mounted onto standard trailers and rigid or inflatable boats The trailer is equipped with tall guideposts and an expandable retractable harness The harness absorbs the vertical energy of docking the boat in swells and helps to bring the boat to rest The hull of the boat is fitted with a spring loaded catch release device that automatically captures the harness firmly landing and securing the boat to the trailer A winch lanyard may be used to further secure the vessel Benefits Safer launch and landing in rough water Faster automatic capture and release Factory mounted or after market equipment Can accommodate most boats and trailers The Opportunity The US Navy deploys a variety of hard hulled boats such as Boston whalers and inflatable boats such as Zodiacs on the open sea from the stern of ships such as LPD 10s Current boat trailer configurations are problematic for launching and docking boats in rough seas as the boat has a tendency to raise and lower with the swells and sway from side to side Thus the Navy developed its own

    Original URL path: http://techlinkcenter.org/summaries/boat-capture-system (2016-02-09)
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  • TDR Bridge Scour Monitoring System | TechLink
    deterioration of the structural foundation This is further complicated by the presence of ice and debris in the waterway Current methods for identifying bridge scour primarily rely on after the fact surveys such as visual inspection by trained divers Data cannot be obtained in this manner during high flow conditions however after the event results may be altered by sediment inflow Bathymetric radar and sonar monitoring systems are relatively simple and inexpensive devices but have major limitations Scour depth resolution is coarse and the devices can yield misleading information if debris or ice are present Since present methods and devices cannot successfully serve in all environments state of the art systems are crucially in demand Image Right The Technology A patented time domain reflectometry TDR based monitoring system has been developed and field tested by researchers for the U S Army Corps of Engineers This novel system permits civil engineers to conduct continuous real time dynamic detection and measurement of scour It permits automatic resetting to enable measurement of multiple events of erosion and deposition The high resolution research model is able to detect changes in river sediment depths of less than 2 5 cm 1 in The TDR Bridge Scour Monitoring System employs a number of inexpensive vertically oriented sensors that are securely anchored into sediments below the maximum expected depth of scour The system can easily be installed on new construction or retrofitted to existing structures The Opportunity Six Army scour patents are available for licensing and commercialization Contacts Marti Elder CLP Senior Technology Manager Montana State University TechLink Bozeman Montana marti martielder com 406 586 7621 Technology Managers and Senior Advisors Read more about Marti Elder CLP Patents Time domain reflectometry system for real time bridge scour detection and monitoring Scour detection and monitoring apparatus adapted for

    Original URL path: http://techlinkcenter.org/summaries/tdr-bridge-scour-monitoring-system (2016-02-09)
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  • Carbon Dioxide Scrubber Gauge | TechLink
    A few temperature sensors inside the absorbent generate data that is easily converted to a reliable repeatable gauge reading The readings are independent of water temperature diver work load depth and previous use Scrubber endurance varies greatly based on a variety of factors including temperature and diver work load Typical rebreather endurance times are measured as worst case scenarios that can lead to inefficient use of diver time and waste of CO2 absorbent Furthermore CO2 sensors normally don t have anything to measure until late in a dive therefore they can serve only as a warning and not an accurate real time predictor of remaining safe endurance Benefits Robust Generates accurate readings independent of water temperature depth previous use or diver workload Simple No field calibration necessary can be made entirely of analog equipment or readily integrated into existing electronics Extended Safe Dive Time Measuring actual scrubber function allows for more complete use of absorbent without compromising safety Versatile Retrofits into existing systems in minutes The Opportunity Available for license and commercialization One issued US patent 6 618 687 and various pending and issued foreign filings under PCT US02 32541 Diver tested prototype built based on temperature and verification data

    Original URL path: http://techlinkcenter.org/summaries/carbon-dioxide-scrubber-gauge (2016-02-09)
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  • Porcelain-Enamel Coated Structural Steel | TechLink
    in licensing out the patent application No 11 234 184 System and Method for Increasing the Bond Strength Between a Structural Material and Its Reinforcement and in cooperative research and development efforts Image Right The Technology The corrosion of embedded structural steel is the major cause for failure of reinforced concrete As steel corrodes the rust coating grows in thickness and puts the concrete in tension cracking it around the steel and destroying any bonding of the steel to the concrete The corrosion problem in reinforced concrete has defied attempts at solutions that are both technically sound and economically viable Epoxy coated rebar has been shown to lose its protective coating to debonding so rapidly that any benefit of protection is gone even before natural carbonating reactions and chloride diffusion have put the steel at risk for corrosion Based on this performance several state transportation departments have recommended that state agencies not use epoxy coated reinforcement in concrete Zinc plated rebar delays the onset of corrosion but does not stop it Exotic materials such as stainless steel and fiberreinforced polymer reinforcement are presently too expensive or carry a risk of sudden failure that prevents them from being widely adopted The Opportunity The ERDC is pioneering a system for firing a specially prepared vitreous enamel coating that contains hydraulically reactive calcium silicates onto reinforcing steel This coating provides durable protection from corrosion even in aggressive chemical environments It also changes the fundamental chemistry at the concrete to steel interface by destroying the weak interface layer that normally forms at the steel surface The chart represents the results of bond strength testing for various steel reinforcement elements embedded in concrete The vitreous coating produces over three times the bond strength far more than can be achieved with bare steel zinc plated steel

    Original URL path: http://techlinkcenter.org/summaries/porcelain-enamel-coated-structural-steel (2016-02-09)
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  • Environmentally Friendly Cleaning Solvent | TechLink
    HAP free specifications such as those of the California s South Coast Air Quality Management District as well as the DoD s own MIL PRF 32295 Cleaner Non Aqueous Low VOC HAP Free NAVSOLVE is the only composition which meets and exceeds MIL PRF 32295 for Type II cleaners which involve a wet application with a cloth or spray and air drying Benefits Cleaning efficiency equal to that of MIL PRF 680 Low VOC HAP free Non ODS High flash point 140 F Non offensive odor Fast drying Non toxic and non corrosive Compatible with metal and non metals The Opportunity Current petroleum based solvents are widely used commercially and in the US military but contain hazardous air pollutants HAPs and volatile organic compounds VOCs which cause health and environmental problems Typical petroleum based solvents such as mineral spirits Stoddard Solvent PD 680 and MIL PRF 680 contain significant quantities of these compounds that release into the air during cleaning processes and contribute to the level of ground level ozone photochemical smog which can damage lung tissue cause respiratory illness and damage vegetation NAVSOLVE is available for testing under an LP CRADA and available for commercialization under a licensing agreement

    Original URL path: http://techlinkcenter.org/summaries/environmentally-friendly-cleaning-solvent (2016-02-09)
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  • Crimp-imbalanced protective fabric | TechLink
    layer fabric armor system The method includes developing a crimp in the yarn utilized for producing a fiber layer by pulling the yarn through a solution that substantially coats the yarn The removable coating has a thickness that ensures a proper amount of crimp in the yarn The tension in the yarn is controlled the yarn is weaved and a crimp is applied in the yarn Once the crimp is

    Original URL path: http://techlinkcenter.org/patents/8555472 (2016-02-09)
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