[email protected] The Navy’s SBIR Program is a mission oriented program that integrates the needs and requirements of the Navy’s Fleet through R&D topics that have dual use potential, but primarily address the needs of the Navy. Companies are encouraged to address the manufacturing needs of the Defense Sector in their proposals.
Compared to conventional ground heat exchangers that require a separate pump or other mechanical devices to circulate the heat transfer fluid, ground coupled thermosiphons or naturally circulating ground heat exchangers do not require additional equipment for fluid circulation in the loop. This might lead to a better overall efficiency and much simpler operation.
Scientists are using similar techniques in the Rocky Mountains to determine the distribution of endangered Bull trout and invasive Brook trout. eDNA is a highly sensitive method for detecting organisms in low abundance and is generally faster and more cost effective than traditional sampling methods. eDNA allows researchers to inexpensively ...
I have a titanium razor (Timeless) on its way to me and I am wondering if there is anything special to maintaining titanium? I understand to rinse it and wipe it down, but does one oil the threads of the cap or anything other part?
Here, at high temperatures, we should note that the variability among real fuels in terms of high-temperature combustion behaviors is relatively modest. But, much larger and more poorly understood (and even identified) variabilities exist in the low-temperature reactivity, NTC, and hot ignition transition regimes (I–III in Figs. 5 and 6).
The results showed the possibility of achieving a valuable emission reduction percentage if future diesel engines are equipped with pre-treatment, internal-treatment and/or post-treatment techniques. Economics impact for medium and low speed for category 3 marine diesel engines is also presented.
This project was conducted in support of the feasibility study for the U.S. Army Single Common Powertrain Lubricant (SCPL). U.S. Army vehicles were surveyed to determine the types of hydraulic system pumps that are used. The hydraulic system from a representative vehicle (6K) Rough Terrain Fork Lift was selected as the basis for a bench test apparatus that was used to investigate the low ...
Leaving aside the fact that it is unlikely to work—explosives still work fine at low temperatures, and electronic detonators are untroubled by liquid nitrogen—how on earth do you propose getting it out to places where IEDs are a problem? Would eve...
Full text of "DTIC ADA035334: Army Aviation RDT and E Plan." See other formats ...
A new set of effective, environmentally safe, nonflammable, low-toxicity refrigerants, solvents, foam blowing agents, propellants, and firefighting agents is disclosed. The agents are clean, electrica
has a low volume calorific value, which reduces the combustion chamber temperatures, and allows NO x less formation by 40 percent and more. However, the production of PM is increased due to the reduction of oxygen in the combustion chamber when applying EGR  .
AD 2014-05-25 required inspections of the low-pressure turbine (LPT) exhaust case and support assembly or tail bearing housing (TBH) to detect cracks or damage. This AD modifies the inspection schedule for the affected engines and adds an optional terminating action.
Lubricants represent the single most critical problem encountered by vehicles in cold regions. A vehicle lubricated for use in temperature regions will simply not operate in an extremely cold environment. A chunk of heavy gear oil can be used to pound nails at -40C. Thus it is of the utmost importance to ensure that all lubricants used in the vehicle be chosen with low-temperature operation in ...
Shell Aviation can offer a range of aviation greases designed to fill almost every lubrication need of the aviation community. There follows very brief descriptions of the major products in the AeroShell Grease range. Other, specialist greases can be made available; please check with your local AeroShell supplier. *AeroShell Grease 5
OBJECTIVE: Develop a low cost, domestically sustainable, elastomeric material for use as internal solid rocket motor case insulation, and demonstrate improved performance over state-of-the-art materials through increased stable char yield, reduced erosion, and low thermal conductivity of material up to maximum internal case temperatures.
Polyamide (nylon) thermoplastic resins offer an excellent balance of processability and performance properties and therefore are used widely. Of the many types of nylon available, the most common are Polyamide-6 and Polyamide-6,6. However, some end-use applications for these resins require improved impact performance at ambient or low temperatures.
Froth Flotation an overview ScienceDirect Topics. For example while cornstarch is the most widely used iron depressant in commercial iron ore flotation systems at present a multitude of starches exist all of which differ in terms of chain structure type degree of substitution molecular size and sensitivity to method of preparation.
NCOA Barracks HVAC Repair, Bldg 24407 17R26 Ft. Gordon, GA PROJECT TABLE OF CONTENTS DIVISION 01 - GENERAL REQUIREMENTS 01 11 00 SUMMARY OF WORK 01 14 00 WORK RESTRICTIONS 01 30 0
This report is a compilation of all the information obtained wider Contract No. AF 33(038)-14593, concerned with means of increasing the availability of synthetic lubricants for use at low and high temperatures. The diesters of straight-chain dibasic acids lead the field of esters mutable as lubricants for use at both low and high temperatures, because of their desirable combinations of ...
Analytical list. Thermal conductivities have been measured with longitudinal heat flow methods where the experimental arrangement is so designed to accommodate heat flow in only t
Target attributes are 1) nozzle throat erosions of <5 mil/s (threshold)/<3 mil/s (objective), 2) zero erosion after two full pulse operations and an inter-pulse delay, and 3) nozzle outer envelope temperatures of <200 degrees Fahrenheit at the end of a 30 second two-pulse operating sequence.