Results 241 to 250 of about 106,175 (294)

Understanding real work situations to determine sprayer design occupational and environmental health criteria: a mixed methods study protocol. [PDF]

BMC Public Health
Jolly C, Aubert-Simard A, Burlet-Vienney D, Beauregard N, Feillou I, Godbout S, Albert M.   +6 more
europepmc   +1 more source

Effect of Polishing Nozzle Wear Evolution on BK7 Topography. [PDF]

Materials (Basel)
Chen X, Pan H, Chen L, You H, Liang X.
europepmc   +1 more source

A diffusion-based 3D printing strategy to fabricate self-supporting, perfusable networks. [PDF]

BMC Methods
Ramos Mejia D, Cai B, Iranzo SC, Perez A, Tan YL, Lee S, Heilshorn SC.   +6 more
europepmc   +1 more source

Performance evaluation of spraying drones compared to boom sprayers for spray applications. [PDF]

Sci Rep
Safaeinezhad M, Ghasemi-Nejad-Raeini M, Taki M.   +2 more
europepmc   +1 more source

Fabricating High Aspect Ratio Amorphous Alloys Microgrooves by Using Periodically Thinning Jet Electrochemical Milling Method. [PDF]

Micromachines (Basel)
Li Y, Ming P, Li D, Zhao R, Niu S.
europepmc   +1 more source

Advancements in nebulizers for pressurized intraperitoneal aerosol chemotherapy (PIPAC). [PDF]

Pleura Peritoneum
Lin X, Yang Z, Li Y.
europepmc   +1 more source

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Advanced Rocket Nozzles

Journal of Propulsion and Power, 1998
Several nozzle concepts that promise a gain in performance over existing conventional nozzles are discussed in this paper. It is shown that signie cant performance gains result from the adaptation of the exhaust e ow to the ambient pressure. Special attention is then given to altitude-adaptive nozzle concepts, which have recently received new interest ...
Hagemann, G., Immich, H., Nguyen, T. van, Dumnov, G.   +3 more
openaire   +3 more sources

Nozzles: Nozzle-less Devices Defined

Journal of the American Rocket Society, 1945
This is a complicated, but exact way of saying that any channel (converge n t divergent, straight or convergentdivergent) through which fluids expand to convert their heat or pressure energy into velocity in a given direction is a nozzle. Since the mass of gas is given a velocity at the expense of its heat or pressure energy, it is seen that the heat ...
openaire   +1 more source