Communications

available technology

Deck drain cover plate assembly

An easy access deck drain cover assembly with a strainer plate having a removable hinge at one end and a removable locking mechanism opposite the hinge where the locking mechanism includes a J-bolt coupled to the strainer plate and means for engaging the bottom of the J-bolt to secure the strainer...
Deep Tissue Probe Imaging with Quantum Dot Tips
available technology

Deep Tissue Probe Imaging with Quantum Dot Tips

NRL and its collaborators have developed a more robust fluorescent labeling of standard borosilicate glass pipettes allowing their 2P visualization far deeper within complex tissues. Recording pipettes are coated with luminescent semiconductor quantum dots (QDs) and used to visualize the probe...
Defense Advanced Research Projects Agency (DARPA)
laboratory

Defense Advanced Research Projects Agency (DARPA)

3701 North Fairfax Drive OASB Arlington VA 22203-1714
The Defense Advanced Research Projects Agency (DARPA) was established in 1958 as the first U.S. response to the Soviet launching of Sputnik. Since that time DARPA's mission has been to assure that the U.S. maintains a lead in applying state-of-the-art technology for military capabilities and to...
available technology

Depthimeter

The depthimeter comprises a heave sensor, a mean path compensator and a combiner. The mean path compensator comprises a ranging device which measures the instantaneous distance of the vehicle from a fixed point on the vehicle to ocean surface as a function of time; a range compensator to compensate...
available technology

Desalination through gas hydrate

In one embodiment, this invention pertains to desalination of seawater by feeding methane into seawater at a depth generally exceeding 100 meters to form methane hydrate which rises to where it is decomposed into methane and water, and recoverig water. Methane is recycled to depth to form more...
available technology

Directional steering controlled jet propulsion

An elongated fluid dynamic water jet type of propulsion body receives an inflow of fluid through inlet openings for entry into a jet propulsor from which an outlet jet emerges for passage through an internal transition passage to an exit end between two pairs of horizontal flaps hinged to the body...

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