Results 141 to 150 of about 438,680 (418)

Determination of an Injection Sprayer's Technological Parameters

open access: yesСельскохозяйственные машины и технологии, 2018
Agricultural boom sprayers are equipped with injection sprayers of mainly foreign origin. The main parameters of the injection sprayers shown in the catalogs display the consumption characteristics in cer­tain ranges without taking into account the ...
L. A. Marchenko, M. A. Safonov
doaj   +1 more source

Global Stability of Steady Transonic Euler Shocks in Quasi-One-Dimensional Nozzles [PDF]

open access: yesarXiv, 2011
We prove global in time dynamical stability of steady transonic shock solutions in divergent quasi-one-dimensional nozzles. We assume neither the smallness of the relative slope of the nozzle nor the weakness of the shock. Key ingredients of the proof are an exponentially decaying energy estimate for a linearized problem together with methods from ...
arxiv  

Recent Progress on 2D‐Material‐Based Smart Textiles: Materials, Methods, and Multifunctionality

open access: yesAdvanced Engineering Materials, EarlyView.
Advancements in 2D‐material‐integrated smart textiles are reviewed, with a focus on materials, fabrication methods, and multifunctional applications, including energy harvesting, monitoring, EMI shielding, energy storage, and thermal management. The discussion addresses key challenges and provides insights into the future development of next‐generation
Yong Choi   +5 more
wiley   +1 more source

Design of supersonic Coanda jet nozzles [PDF]

open access: yes
The thrust vectoring of supersonic Coanda jets was improved by designing a nozzle to skew the initial jet velocity profile. A new nozzle design procedure, based on the method of characteristics, was developed to design a nozzle which produces a specified
Bevilaqua, Paul M., Lee, John D.
core   +1 more source

Scalable Manufacturing of Radiation‐Tolerant Potentiometric Electrodes: A Systematic Transition from Laboratory to Semiautomated Fabrication

open access: yesAdvanced Engineering Materials, EarlyView.
Laboratory protocols for producing thin‐film pH electrodes for sterilized single‐use technologies have been successfully developed into a semiautomated workflow, with higher throughput and precision of membrane thickness. Accuracies are within 0.05 pH units versus ground truth, and uncertainty analysis reveals the largest sources of error to be derived
Bingyuan Zhao   +4 more
wiley   +1 more source

Effect of Nozzle Contour on Flow Separation in Overexpanded Rocket Nozzles

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series B, 2005
In the present paper, parametric numerical analyses of the separated transonic flows in overexpanded rocket nozzles are conducted. Several types of nozzles are examined numerically to clarify the detailed mechanisms of the occurrence of restricted shock separation (RSS) in compressed truncated perfect (CTP) nozzles.
Yoshinobu Tsujimoto   +4 more
openaire   +6 more sources

Small scale noise and wind tunnel tests of upper surface blowing nozzle flap concepts. Volume 1. Aerodynamic test results [PDF]

open access: yes
The results and analyses of aerodynamic and acoustic studies conducted on the small scale noise and wind tunnel tests of upper surface blowing nozzle flap concepts are presented. Various types of nozzle flap concepts were tested.
Nishida, R. S.   +2 more
core   +1 more source

Characteristics of neutrons and proton beams arising from two different Beam Nozzles [PDF]

open access: yesarXiv, 2015
Tandem or Van de Graaff accelerator with an energy of 3-MeV is typically used for PIXE analysis. In this study, the beam line design used in PIXE analysis was used to increase the production of isotopes instead of the typical low-energy accelerator from a 13-MeV cyclotron.
arxiv  

Direct Ink Writing of Conductive Hydrogels

open access: yesAdvanced Functional Materials, EarlyView.
This review examines the use of direct ink writing (DIW) for fabricating conductive hydrogels with customizable 3D structures. It outlines the rheological requirements for successful DIW, followed by an exploration of the materials and ink formulations used to impart electronic and/or ionic conductivity to hydrogels while maintaining printability ...
Monica Ho   +6 more
wiley   +1 more source

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