Results 31 to 40 of about 42,983 (307)

Experimental study on the hydraulic performance of impact-sprinkler system using aquaculture water for irrigation

Guan'gai paishui xuebao
【Background】 Sprinkler irrigation is a widely used technique across various sectors. This study examines the impact of using aquaculture water for irrigation on the hydraulic performance of the 20PY2H impact sprinkler systems.
JIANG Yue, WANG Lisha, LI Hong, ZUO Xinle   +3 more
doaj   +1 more source

Using Low Pressure Sprayers [PDF]

, 1984
PDF pages:
Huber, Samuel G.
core  

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Study on Optimization of Key Parameters for High-Pressure Water Jet Reaming Equipment of Anchor Holes in Soft Rock Roadways

Applied Sciences
To solve the problems of easy fracture of reaming cutter arms and mechanical jamming leading to equipment damage when mechanical reaming equipment is used for anchor hole reaming in soft rock roadways, this study proposes the development of a high ...
Aolong Liu, Hua Nan, Yida Sun
doaj   +1 more source

Field Evaluation of Herbicides on Vegetables and Small Fruits 2004 [PDF]

, 2005
Herbicide evaluation studies on vegetables and small fruits were conducted in 2004 at the Arkansas Agricultural Experiment Station at Fayetteville, AR, in an effort to evaluate new herbicides, herbicide mixtures, and their application timings for weed ...
Ellis, Andrew T., Ottis, Brian V., Talbert, Ronald E., Thomas, Colleen M.   +3 more
core   +2 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source

Study on Ladle Baking Process with Oxygen-fuel Combustion [PDF]

Archives of Foundry Engineering
Oxygen-fuel combustion instead of air combustion for ladle baking has gradually become a new technology for ladle heating in the iron and steel industry.
Xiaoyao Wang, Guangqiang Liu, Yuanxin Liu, Jian Wang   +3 more
doaj   +1 more source

Numerical investigation on the cooling performance of a novel jet cooler design for a supercritical CO2 turbine rotor shaft cooling

Mechanics & Industry, 2021
Numerical investigation was carried out to study the heat transfer performance for a high-speed rotating cylindrical surface subjected to single row array round jets impingement, under a very small gap spacing.
Li Jun, Gurgenci Hal, Li Jishun, Guan Zhiqiang, Li Lun, Xue Yujun   +5 more
doaj   +1 more source

Dual-bell nozzle with fluidic control of transition for space launchers

Acta Astronautica, 2022
The dual-bell nozzle is a promising concept for improving the performance of space launchers. It is characterised by the presence of two altitude-dependent working modes which allow to reduce non-adaptation losses. However, the transition between the two working modes usually takes place prematurely and dangerous side loads might be observed.
Andrea Ferrero, Antonietta Conte, Emanuele Martelli, Francesco Nasuti, Dario Pastrone   +4 more
openaire   +3 more sources

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source