Results 21 to 30 of about 12,867 (266)

Performance testing of field crop sprayers in the Rasina district [PDF]

Acta Agriculturae Serbica, 2018
In agricultural production, pests and diseases of agricultural crops, as well as weed plants, cause significant losses in the yield and quality of agricultural products.
Đokić Dragoslav, Stanisavljević Rade, Marković Jordan, Milenković Jasmina, Terzić Dragan, Vasić Tanja, Barać Saša   +6 more
doaj  

Research on Erosion Effect of Various Submerged Cavitating Jet Nozzles and Design of Self-Rotating Cleaning Device

Applied Sciences
Submerged cavitating jets can effectively remove marine organisms from ship hulls without damaging the surface paint. To enhance the cleaning efficiency of cavitating jets, the selection of an appropriate nozzle structure and the design of an efficient ...
Siwen Huang, Jiangping Huang, Kai He
doaj   +1 more source

IMPROVEMENT OF SYSTEMS OF TECHNICAL WATER SUPPLY WITH COOLING TOWERS FOR STEAM POWER PLANTS TECHNICAL AND ECONOMIC INDICATORS PERFECTION. Part 1

Известия высших учебных заведений и энергетических объединенний СНГ: Энергетика, 2016
In order to reduce the temperature of cooling water and increase the efficiency of use of power resources the main directions of modernization of systems of technical water supply with cooling towers at steam power plants are presented.
Yu. A. Zenovich-Leshkevich-Olpinskiy, N. V. Shiroglazova, A. Yu. Zenovich-Leshkevich-Olpinskaya   +2 more
doaj   +1 more source

GelMA‐based 3D spheroids recapitulate transcriptomic and functional hallmarks of myeloid sarcoma

FEBS Open Bio, EarlyView.
GelMA 5% hydrogels support the formation of myeloid leukemia spheroids that recapitulate MS‐specific features, including G1 arrest, apoptosis, and ECM‐driven transcriptomic reprogramming. The 3D model mimicked soft‐tissue‐like stiffness and oxygen conditions, and transcriptomic convergence with primary MS samples confirmed its utility as a preclinical ...
Nicolas Germain, Elise Buret, Le Hoang Thanh Nguyen, Marion Cocheteux, Nicolas Touya, Mélanie Dhayer, Romain Dubois, Frank Lafont, Sebastien Janel, Patrice Maboudou, Steve Lancel, Philippe Marchetti   +11 more
wiley   +1 more source

Relationship between spray characteristics and cooling performance for inlet air cooling of gas turbine

Nihon Kikai Gakkai ronbunshu, 2020
A suction air cooling by water spray has been used for inlet air of gas turbines. The cooling performance depends on spray characteristics and surrounding conditions.
Asuka TAKATSUKI, Katsuhiko SUGITA, Keitaro MOTOI, Takahiro MIYAOKA, Shuichi OMORI, Shuichi UMEZAWA, Hisanobu KAWASHIMA, Tsuneaki ISHIMA   +7 more
doaj   +1 more source

Evaluationof compact air-induction flat fan nozzles for herbicide applications: Spray drift and biological efficacy

Frontiers in Plant Science, 2023
Nozzles are the most critical component of a sprayer for pesticide applications. Recently, air-induction nozzles and twin flat-fan air-induction nozzles have started to be used for herbicide applications. In order to evaluate the potential of compact air-
Shilin Wang, Shilin Wang, Xinjie Li, David Nuyttens, Lanting Zhang, Yajia Liu, Xue Li   +6 more
doaj   +1 more source

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

Remotely Piloted Aircraft Spraying in Coffee Cultivation: Effects of Two Spraying Systems on Drop Deposition

AgriEngineering
The use of Remotely Piloted Aircraft (RPA) for spraying coffee crops has expanded due to their practicality and cost reduction. This study aimed to evaluate spray rate effects on coffee crops using two RPA (T10 and T20).
Aldir Carpes Marques Filho, Lucas Santos Santana, Gabriel Araújo e Silva Ferraz, Rafael de Oliveria Faria, Adisa Jamiu Saka, Josiane Maria da Silva, Mozart Santos Santana, Henrique Canestri Rafael, Anderson Barbosa Evaristo, Sérgio Macedo Silva, Felipe Oliveira e Silva   +10 more
doaj   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source

Research on geometrical parameters effect of fan nozzle jet performance based on orthogonal experiment

The Journal of Engineering, 2018
In order to determine the significance and importance order of the jet performance caused by fan nozzle's geometric parameters of aero-engine online cleaning equipment, the orthogonal experiment method, standard k–ɛ turbulence model and volume of fluid ...
Xudong Shi, Guijia Jiang, Bing Wei, Xiangfen Kong   +3 more
doaj   +1 more source