Results 111 to 120 of about 42,563 (310)

Acoustic and aerodynamic performance of a 1.83-meter (6-ft) diameter 1.25-pressure-ratio fan (QF-8) [PDF]

open access: yes
A 1.25-pressure-ratio 1.83-meter (6-ft) tip diameter experimental fan stage with characteristics suitable for engine application on STOL aircraft was tested for acoustic and aerodynamic performance.
Lucas, J. G., Woodward, R. P.
core   +1 more source

A Sacrificial 3D Printed Vessel‐on‐Chip Demonstrates a Versatile Approach to Model Granulation Tissue

open access: yesAdvanced Healthcare Materials, EarlyView.
A novel method that combines 3D printing and organ‐on‐chip technology enables the creation of hollow channels lined with endothelial cells through a fibroblast‐populated connective tissue matrix. The model supports stable metabolic culture conditions, angiogenic sprouting, and immune cell migration, thereby demonstrating an easy and versatile method to
Jonas Jäger   +7 more
wiley   +1 more source

WORK STIMULATION OF THE SPRAYER FIELD BEAM WITH THE USE OF R PROGRAM [PDF]

open access: yesJournal of Central European Agriculture, 2013
In this work the possibility of using R program to stimulate transverse distribution of sprayed liquid deposition and coefficient of variation CV obtained on the virtual field beam.
Stanislaw Parafiniuk, Joanna Tarasinska
doaj  

Reduction of acoustic disturbances in the test section of supersonic wind tunnels by laminarizing their nozzle and test section wall boundary layers by means of suction [PDF]

open access: yes
The feasibility of quiet, suction laminarized, high Reynolds number (Re) supersonic wind tunnel nozzles was studied. According to nozzle wall boundary layer development and stability studies, relatively weak area suction can prevent amplified nozzle wall
Pfenninger, W., Syberg, J.
core   +1 more source

A 3D Bioprinted Spheroid‐Laden dECM‐Enriched Osteosarcoma Model for Enhanced Drug Testing and Therapeutic Discovery

open access: yesAdvanced Healthcare Materials, EarlyView.
A 3D biomimetic OS model was developed by bioprinting an OS‐cell‐derived dECM‐enriched bioink with OS spheroids incorporated. The model showed upregulation of known OS prognostic markers and increased resistance to doxorubicin, compared to 2D cultures and scaffold‐free spheroids, making this a more clinically relevant platform for drug discovery ...
Margarida F. Domingues   +6 more
wiley   +1 more source

Study on atomization characteristics of nozzles in artificial snow making process

open access: yesZhileng xuebao
The increasing global warming and rapid growth of the ski industry have raised higher demands for artificial snowmaking technology and snow quality, with the quality of artificial snowmaking closely linked to the atomization characteristics of snowmaking
李睿   +4 more
doaj   +2 more sources

Model Tests of Jet Induced Lift Effects on a VTOL Aircraft in Hover [PDF]

open access: yes
Lift loss and jet decay measurements on hovering vertical takeoff aircraft ...
Shumpert, P. K., Tibbetts, J. G.
core   +1 more source

Adjustable steam producing flexible orifice independent of fluid pressure [PDF]

open access: yes, 1992
A self-adjusting choke for a fluids nozzle includes a membrane constructed of a single piece of flexible or elastic material. This flexible material is shaped to fit into the outlet of a nozzle.
Morrison, Andrew D.
core   +1 more source

A Quantitative Printability Framework for Programmable Assembly of Pre‐Vascular Patterns via Laser‐Induced Forward Transfer

open access: yesAdvanced Healthcare Materials, EarlyView.
Laser‐Induced Forward Transfer (LIFT) is presented as a powerful micropatterning tool. An objective printability framework is developed to assess optimal printing parameter combinations. The technology is further explored for its ability to deterministically deposit microdroplets at predefined locations following CAD designs, enabling the patterning of
Cécile Bosmans   +8 more
wiley   +1 more source

Design integration and noise studies for jet STOL aircraft. Task 7A: Augmentor wing cruise blowing valveless system. Volume 1: System design and test integration [PDF]

open access: yes
Exploratory design studies conducted to establish the configuration of an augmentor wing vruise blowing (valveless) system in a 150-passenger STOL airplane were reported in NASA CR-114570.
Nickson, T. B., Roepcke, F. A.
core   +1 more source

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