Results 281 to 290 of about 242,573 (363)

Coaxial nozzle-assisted 3D bioprinting with built-in microchannels for nutrients delivery.

Biomaterials, 2015
Qing Gao, Yong He, Jian-zhong Fu, An Liu, Liang Ma   +4 more
semanticscholar   +3 more sources

Multiscale 3D Bioprinting by Nozzle-Free Acoustic Droplet Ejection.

Small Methods, 2021
Bioprinting allows the manufacture of complex cell-laden hydrogel constructs that can mature into tissue replacements in subsequent cell culture processes.
Stefan Jentsch, Ramin Nasehi, Christoph Kuckelkorn, Benedikt Gundert, Sanja Aveic, H. Fischer   +5 more
semanticscholar   +1 more source

Beyond the Single-Nozzle: Coaxial Electrospinning Enables Innovative Nanofiber Chemistries, Geometries, and Applications.

ACS Applied Materials and Interfaces, 2020
With an ever increasing scientific, technological, and industrial interest in high surface area, porous nanofiber mats, electrospinning has emerged as a popular method to produce fibrous assemblies for use across biomedical, energy, and environmental ...
Prerana Rathore, Jessica D. Schiffman
semanticscholar   +1 more source

Steam Flow in Nozzle and the Nozzle Calculation

Applied Mechanics and Materials, 2013
The adiabatic flow process of gas or steam in a nozzle is not only widely used in steam turbines or other power equipment, but also applied to ejectors, impeller-type compressors, burners and other thermal devices in air conditioning, ventilation and gas engineering.
Ya Rong Wang, Pei Rong Wang
openaire   +2 more sources

The Design of the Nozzle for the Nozzle Box Microturbines

Applied Mechanics and Materials, 2015
The paper presents a comparative analysis of existing designs nozzle turbines. The advantages and disadvantages of existing designs nozzles. The description of the new nozzle design for axial microturbines. The analysis of the reasons for reducing the loss of kinetic energy of the flow of the working fluid in the nozzles of the proposed design offers.
Timofey V. Sazonov, Yuriy Ya. Fershalov, Mikhail Yu. Fershalov, Andrey Yu. Fershalov, Damir I. Ibragimov   +4 more
openaire   +2 more sources

Flow phenomena in advanced rocket nozzles - The plug nozzle

34th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit, 1998
In recent years, plug nozzles have gained a renewed interest in space business. In principle, this nozzle concept offers a continuous altitude adaptation up to its design pressure ratio. But, the flow adaptation achieved with this advanced rocket nozzle concept induces shocks and expansion waves resulting in exit profiles far away from idealized one ...
Hagemann, G., Immich, H., Terhardt, M.
openaire   +3 more sources

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   +4 more sources

Nozzle external geometry as a boundary condition for the azimuthal mode selection in an impinging underexpanded jet

Journal of Fluid Mechanics, 2019
The role of the external boundary conditions of the nozzle surface on the azimuthal mode selection of impinging supersonic jets is demonstrated for the first time.
Joel L. Weightman, O. Amili, D. Honnery, D. Edgington-Mitchell, J. Soria   +4 more
semanticscholar   +1 more source

Nozzle Damping of the Fluidic Nozzle

2019
For a thrust-adjustable rocket motor, to avoid unstable combustion, we not only need to consider nozzle damping before thrust adjustment, but also need to consider nozzle damping variation thereafter, and it is important to learn about the influence of nozzle damping before, and after, thrust adjustment.
Junwei Li, Yu Liu, Xinmin Chen, Kan Xie
openaire   +2 more sources