Results 21 to 30 of about 106,138 (262)

Wetting and deposition characteristics of air-assisted spray droplet on large broad-leaved crop canopy

Frontiers in Plant Science, 2023
Precision and efficient pesticide spraying is an important part of precision agriculture, banana is a large broad-leaved plant, with pests and diseases, has a high demand for spraying and pest control.
Yinlong Jiang, Yinlong Jiang, Zhou Yang, Zhou Yang, Zhou Yang, Xing Xu, Xing Xu, Dongying Shen, Tingting Jiang, Bowei Xie, Jieli Duan, Jieli Duan   +11 more
doaj   +1 more source

Temperature Effect on Moving Water Droplets at the Channel of ‎PEMFC by Multi-component Multiphase Lattice Boltzmann Method [PDF]

Journal of Applied and Computational Mechanics, 2023
In this paper, a multi-component multiphase pseudopotential Lattice Boltzmann method with multi relaxation time (MRT) collision operator is presented to examine the dynamic behavior of liquid droplets movement and coalescence process in the gas channel ...
Mehdi Moslemi, Kourosh Javaherdeh, Hamid Reza Ashorynejad   +2 more
doaj   +1 more source

Study on Spray Deposition and Drift Characteristics of UAV Agricultural Sprayer for Application of Insecticide in Redgram Crop (Cajanus cajan L. Millsp.)

Agronomy, 2022
Insecticide applications are typically being carried out with traditional manual spraying equipment in redgram, which leads to inadequate control of insects due to higher crop height.
Yallappa Dengeru, Kavitha Ramasamy, Surendrakumar Allimuthu, Suthakar Balakrishnan, Ayyasamy Paramasivam Mohan Kumar, Balaji Kannan, Kalarani Muthusami Karuppasami   +6 more
doaj   +1 more source

The density-functional theory of quantum droplets

, 2023
In quantum droplets, the mean-field energy is comparable to the Lee-Huang-Yang (LHY) energy. In the Bogoliubov theory, the LHY energy of the quantum droplet has an imaginary part, but it is neglected for practical purposes. So far, most theoretical studies of quantum droplets have been based on the extended Gross-Pitaevskii (GP) equation obtained by ...
Zhang, Fan, Yin, Lan
openaire   +2 more sources

Coverage of corn plants using different hydraulic nozzles and application volume rates

Journal of Plant Protection Research, 2022
An efficient application of phytosanitary products depends, among other factors, on a good selection of nozzles and the application volume rate of the solution used. Thus, the objective of this work was to evaluate the efficiency of different models of
Roxana Stefane Mendes Nascimento, Douglas Ferreira Parreira, Juliana Souza Milagres, Danilo Felipe Afonso, Danilo Felipe Afonso, Pedro Luid de Sousa Oliveira, Rafael Guimarães Silva Moraes   +6 more
doaj   +1 more source

Variation in sprinkler irrigation droplet impact angle on the physical crusting properties of soils

Agricultural Water Management, 2023
The angle at which a droplet impacts determines its shearing and compaction effects on soil, which in turn affects the formation and properties of the physical soil crust.
Rui Zhang, Changjuan Zheng, Delan Zhu, Pute Wu, Yichuan Liu, Xiaomin Zhang, Nazarov Khudayberdi, Changxin Liu   +7 more
doaj   +1 more source

Dynamical Density Functional Theory for the Evaporation of Droplets of Nanoparticle Suspension [PDF]

Langmuir, 2017
We develop a lattice gas model for the drying of droplets of a nanoparticle suspension on a planar surface, using dynamical density functional theory (DDFT) to describe the time evolution of the solvent and nanoparticle density profiles. The DDFT assumes a diffusive dynamics but does not include the advective hydrodynamics of the solvent, so the model ...
C. Chalmers, R. Smith, A.J. Archer
openaire   +3 more sources

Influence of droplet spectra on the efficiency of contact fungicides and mixtures of contact and systemic fungicides

Plant Protection Science, 2006
The effects of droplet spectra, spray volume, and the addition of an adjuvant to the spray solution against Phytophthora infestans were evaluated using contact fungicides, mixtures of contact and systemic fungicides, and a contact fungicide + an adjuvant.
Martin Prokop, Karel Veverka
doaj   +1 more source

The Relationship between Droplet Density and the Defoliation Effect of Cotton Harvest Aids. [PDF]

ACS Omega
Spraying harvesting aids is an important step before the mechanical harvesting of cotton. To clarify the direct relationship between the droplet density and the defoliation effect of cotton harvest aid solutions, we evaluated the relationship between the droplet density and the defoliation effect. The determination method and evaluation standard of the
Duan L, Fang Z, Dou Z, Liu Y, Wen M, Hou T, Han X.   +6 more
europepmc   +4 more sources

Isolation of Lipid Droplets from Cells by Density Gradient Centrifugation [PDF]

Current Protocols in Cell Biology, 2005
AbstractLipid droplets are organelles found in most mammalian cells, as well as various plant tissues and yeast. They are composed of a core of neutral lipids surrounded by a membrane monolayer of phospholipids and cholesterol into which specific proteins are embedded.
Dawn L, Brasaemle, Nathan E, Wolins
openaire   +3 more sources