Article
Engineering, Chemical
Tim Tofan, Sergejus Borodinas, Rimantas Kacianauskas, Raimondas Jasevicius
Summary: This article presents a numerical simulation of a printhead model for drop-on-demand inkjet printers. The study analyzes the behavior of ink droplets and the impact of different ejection settings on the accuracy of the printing process. The effects of printhead size, nozzle orifice, motion parameters, and fluid properties on droplet stability were also investigated.
Article
Chemistry, Multidisciplinary
Tim Tofan, Harald Kruggel-Emden, Vytautas Turla, Raimondas Jasevicius
Summary: The study utilized numerical simulation and analysis to investigate the motion and morphology changes of an ink droplet ejected through a nozzle, as well as its suitability for inkjet printhead nozzles, including velocity, size variations, and recommendations for specific inks.
APPLIED SCIENCES-BASEL
(2021)
Article
Materials Science, Multidisciplinary
Adrien Da Silva, Jan Frostevarg, Joerg Volpp, Alexander F. H. Kaplan
Summary: This paper explores the possibility of using a laser-based drop deposition technique for stainless-steel wire manufacturing. Through experiments, optimized parameters for accurate single drop detachment were identified, leading to the successful production of multi-drop tracks with influenced microstructure.
MATERIALS & DESIGN
(2021)
Article
Multidisciplinary Sciences
Zhiping Li, Ying Zhu, Yong Liu, Chenxu Cao, Jiaojiao Wu, Fei Huang
Summary: This paper proposes a new method for ice making and calculates the freezing time by studying the heat transfer mechanism of droplets and analyzing the factors affecting the freezing process. The results show that the outside of the droplet freezes first, and the liquid-solid boundary is parabolic, with increasing concavity over time and droplet size.
SCIENTIFIC REPORTS
(2022)
Article
Agronomy
Ingrid Zwertvaegher, Aude Lamare, Jean-Paul Douzals, Paolo Balsari, Paolo Marucco, Marco Grella, Amedeo Caffini, Nikos Mylonas, Donald Dekeyser, Dieter Foque, David Nuyttens
Summary: This study selects the optimal nozzle type, spacing, and height for bed spray applications, aiming to reduce pesticide losses through laboratory testing and measurements.
PEST MANAGEMENT SCIENCE
(2022)
Article
Agronomy
Feixiang Yuan, Chenchen Gu, Kechuan Yi, Hanjie Dou, Si Li, Shuo Yang, Wei Zou, Changyuan Zhai
Summary: This study investigated the impact of spray pressure on droplet atomization characteristics during variable-rate spraying in orchards. A mathematical model was established through experimental and regression analysis. The results showed that longitudinal distance, transverse distance, and spray pressure had a significant influence on droplet size and velocity. This study provides agricultural references for predicting droplet characteristics at different spatial positions.
Article
Engineering, Manufacturing
Hemang Kumar Jayant, Manish Arora
Summary: The molten metal droplet-on-demand (MMDoD) mechanism is a sophisticated method for metal additive manufacturing. The mechanism uses a magnetostrictive actuator to create a low input voltage circuit for a desktop-based metal AM system. By employing a thermally insulating piston, the actuator is protected from the heat of the molten metal, and the oscillation of the piston generates droplets of the molten metal. The study investigates the effects of input signal pulse shape, voltage amplitude, and the distance between the piston and nozzle on the performance of the MMDoD mechanism, aiming to achieve reproducible droplets with minimal geometric variations.
JOURNAL OF MANUFACTURING PROCESSES
(2022)
Article
Agronomy
Akbar Aliverdi, Abolfazl Aliverdi
Summary: The study found that increasing the dose and spray volume of sulfosulfuron, as well as using appropriate nozzle types and outlet designs, can optimize the control of spontaneous barley in wheat.
Article
Agronomy
Wanting Yang, Weidong Jia, Mingxiong Ou, Wei Zhong, Li Jiang, Xiaowen Wang
Summary: This study investigated the different morphological characteristics between emulsions and water during atomisation at different pressures, analysed the effect of liquid sheet structure on droplet size distribution, and found a correlation between the intensity of liquid sheet disturbance and droplet size distribution.
Article
Nanoscience & Nanotechnology
Chuanqi Wei, Yakun Zong, Youhua Jiang
Summary: This study develops a surface called wire-on-pillar magneto-responsive superhydrophobic arrays (WP-MRSA) by mimicking lotus leaves, butterfly wing, and respiratory cilia. The surface possesses interfacial properties of structural superhydrophobicity, anisotropicity, stimuli responsiveness, and flexibility. The unique integration of structural properties and configurations enables various functionalities, benefiting applications such as droplet-based microfluidics and active self-cleaning surfaces.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Agronomy
Emanuele Cerruto, Giuseppe Manetto, Salvatore Privitera, Rita Papa, Domenico Longo
Summary: Droplet size spectrum is crucial for pesticide application, but current measurement methods face limitations in binarization and segmentation. In this study, an image processing technique was used to automate the threshold selection process, improving segmentation efficiency and reducing the influence of human factors.
Article
Engineering, Chemical
Gang Zhou, Junpeng Wang, Ruixin Song, Cuicui Xu, Pengfei Wang
Summary: This study experimentally investigated the droplet breakup and droplet particles diffusion of X-swirl nozzles and revealed the impact of turbulence on the atomization process. The experimental results showed that turbulence can change the trajectory of droplets and have a significant effect on droplet breakup.
CHEMICAL ENGINEERING SCIENCE
(2022)
Article
Agronomy
Benny De Cauwer, Ilke De Meuter, Sander De Ryck, Donald Dekeyser, Ingrid Zwertvaegher, David Nuyttens
Summary: In many EU countries, there are increasingly strict requirements for spray applications to use nozzles with reduced spray drift. However, farmers are concerned that the use of drift-reducing nozzles may affect the effectiveness of contact herbicides. This study investigated the effects of different drift-reducing nozzles on spray coverage, droplet characteristics, and the efficiency of contact herbicides against certain weed species. The results showed that most drift-reducing nozzles performed equally well as standard nozzles, but air-induction nozzles were not suitable for effective application on certain weed species at specific growth stages. The study also found that droplet size characteristics were not a good indicator of herbicide efficiency.
Article
Engineering, Aerospace
Li Fei, Bingbing Zhao, Liming He, Weida Cheng, Jinlu Yu, Hao Zeng, Jiahui Yuan
Summary: This study investigates the spray distribution characteristics of a fan nozzle using aviation kerosene as the atomizing medium. The results indicate that the mean droplet diameters decrease with increasing lateral airflow velocity and decreasing fuel supply pressure difference. The recirculation zone at the back of the struts affects the downstream spray.
AEROSPACE SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Biomedical
Jinhui Yao, Chunhua He, Jianxin Wang, Canfeng Yang, Ye Jiang, Zhiyong Liu, Guanglan Liao, Tielin Shi
Summary: In this study, a novel microfluidic chip integrating droplet generation, on-demand electrostatic droplet charging, and high-throughput sorting was developed. The chip demonstrated high-frequency droplet generation and sorting, simplifying the fabrication process and enhancing the accuracy of droplet deflection. The chip has the potential for quantitative processing and analysis of single cells, allowing for elucidation of cell-to-cell variations.
BIO-DESIGN AND MANUFACTURING
(2023)