Results 61 to 70 of about 198,480 (259)

Micro-slurry jet for surface processing of dental ceramics

Biosurface and Biotribology, 2019
A micro-slurry jet (MSJ) was used for removing microscopic cracks and microstructural defects on surfaces of dental ceramics, in which the MSJ functioned as a wet blasting machine using mixed alumina particles and water to spray workpiece surfaces by a ...
Takashi Baba, Yuta Nakashima, Shohei Takahashi, Tohru Matsubara, Ling Yin, Yoshitaka Nakanishi   +5 more
doaj   +1 more source

High-Speed Fluorescence Imaging Corroborates Biological Data on the Influence of Different Nozzle Types on Cell Spray Viability and Formation

Journal of Functional Biomaterials
Treating severe dermal disruptions often presents significant challenges. Recent advancements have explored biological cell sprays as a promising treatment, but their success hinges on efficient cell delivery and complete wound coverage.
Miriam Heuer, Mehdi Stiti, Volker Eras, Julia Scholz, Norus Ahmed, Edouard Berrocal, Jan C. Brune   +6 more
doaj   +1 more source

Avaliação de estratégias para redução da deriva de agrotóxicos em pulverizações hidráulicas Evaluation of strategies to reduce pesticide spray drift

Planta Daninha, 2003
A deriva nas aplicações de agrotóxicos é considerada um dos maiores problemas da agricultura. Entre os fatores que a influenciam, o tamanho das gotas pulverizadas tem-se mostrado primordial. Dessa forma, o presente trabalho teve como objetivo a avaliação
J.P.A.R. Cunha, M.M. Teixeira, J.R. Coury, L.R. Ferreira   +3 more
doaj   +1 more source

Three-dimensional-printed gas dynamic virtual nozzles for x-ray laser sample delivery.

Optics Express, 2016
Reliable sample delivery is essential to biological imaging using X-ray Free Electron Lasers (XFELs). Continuous injection using the Gas Dynamic Virtual Nozzle (GDVN) has proven valuable, particularly for time-resolved studies.
G. Nelson, R. Kirian, U. Weierstall, N. Zatsepin, Tomáš Faragó, T. Baumbach, F. Wilde, F. Niesler, Benjamin Zimmer, I. Ishigami, Masahide Hikita, S. Bajt, S. Yeh, D. Rousseau, H. Chapman, J. Spence, M. Heymann   +16 more
semanticscholar   +1 more source

Experimental Study of Dual Bell Nozzles

, 2007
An experimental study was conducted testing Dual-bell nozzles in various conditions at DLR’s cold gas test stand. The stability of the nozzle flow has been verified by measuring the pressure ratio values by flow transition and retransition, to ensure a ...
Nürnberger-Génin, Chloé, Stark, Ralf
core  

Numerical analysis on the heat transfer of three types of nozzles for the hypersonic long-run wind tunnel

, 2015
The hypersonic long-run scramjet test tunnel is one of the key ground facilities for the studies of ramjet/scramjet and hypersonic thermal management.
张新宇, 邢云绯, Zhong, FQ (reprint author), Chinese Acad Sci, Inst Mech, Natl Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China., 李东霞, 仲峰泉   +4 more
core   +1 more source

Determination of the Water Jet Geometric Parameters Depending on the Type of Nozzle and Jet Operation Mode

Инженерные технологии и системы
Introduction. The article describes the process of considering the geometric parameters of water jet depending on a water jet operation mode and nozzle type. Within the framework of the study of hydraulic soil treatment in the under-tree zones, it became
Aleksandr V. Shutenko, Dmitry O. Khort
doaj   +1 more source

CFD study on nozzle cooling structure for a wind tunnel of high temperature and long operation time

工程科学学报, 2016
A wind tunnel of high temperature and long operation time requires the use of cooling techniques,so we need design cooling channels on the nozzle. In this paper,rectangular cooling channels of high cooling efficiency were used to study the factors ...
HE Ning, YANG Hai-bo, SUN Dong-bo
doaj   +1 more source

COLD FLOW TESTING OF DUAL-BELL NOZZLES IN ALTITUDE SIMULATION CHAMBERS

, 2005
DLR studied various subscale cold flow dual-bell nozzles at test facility P6.2. To fulfill future test requirements the facilitywas modified.
Böhm, Christian, Oskar J., Haidn, Herbert, Zimmermann, Stark, Ralf   +3 more
core  

Multifunction nozzles [PDF]

, 1986
The next generation of fighter engines planned for 1990's and beyond are expected to incorporate one or other variants of multifunction nozzles in place of simple axisymmetric nozzles employed hitherto.
Rao, KLV, Chidananda, MS, Jagannatha Rao, B   +2 more
core