Results 21 to 30 of about 119,441 (244)

Spatial Beam Cleaning in Multimode GRIN Fibers: Polarization Effects

IEEE Photonics Journal, 2023
The beam self-cleaning effect in graded-index multimode optical fibers has several interesting potential applications, such as high-resolution nonlinear imaging and mode-locked fiber lasers. Most experimental and theoretical studies of beam self-cleaning
Mario Ferraro, Fabio Mangini, Mario Zitelli, Raphael Jauberteau, Yifan Sun, Pedro Parra-Rivas, Katarzyna Krupa, Alessandro Tonello, Vincent Couderc, Stefan Wabnitz   +9 more
doaj   +1 more source

Progress and prospect of surface self-cleaning technology of machine vision system in underground mining

Meitan xuebao
Machine vision system in underground mining has the function of information collection and intelligent decision-making in coal mine intelligenc, but it is affected by coal dust, water mist and light, which leads to unstable image quality and affects the ...
Shengli YANG, Yongsheng CHEN, Jiachen WANG, Lianghui LI, Fengqi LIU, Shixiong SONG, Dingheng HUI   +6 more
doaj   +1 more source

Self-cleaning superhydrophobic fly ash geopolymer

Scientific Reports, 2023
Building materials with hydrophobic surfaces can exhibit increased service life by preventing moisture absorption or diffusion through their surfaces. For concrete used in construction, this hydrophobicity can prevent the corrosion of reinforcing steel ...
Prinya Chindaprasirt, Peerapong Jitsangiam, Pumipat K. Pachana, Ubolluk Rattanasak   +3 more
doaj   +1 more source

Development and performance evaluation of novel jet self-cleaning for screen filters in drip irrigation systems: More efficient, water-saving, and cleaner

Agricultural Water Management
Challenges persist in the effectiveness of self-cleaning screen filters, encompassing issues such as facile clogging, prolonged cleaning duration, and filter deformation, significantly impeding their functionality within drip irrigation systems.
Zhouyang Qin, Ningning Liu, Jinzhu Zhang, Zhenhua Wang, Wenyao Liang, Miao Li, Jihong Zhang   +6 more
doaj   +1 more source

Skin hydrophobicity as an adaptation for self‐cleaning in geckos

Ecology and Evolution, 2020
Hydrophobicity is common in plants and animals, typically caused by high relief microtexture functioning to keep the surface clean. Although the occurrence and physical causes of hydrophobicity are well understood, ecological factors promoting its ...
Jendrian Riedel, Matthew John Vucko, Simone P. Blomberg, Lin Schwarzkopf   +3 more
doaj   +1 more source

Simulation and Optimization of a Self-Cleaning Device for the Header of a Rice Seed Harvester Using Fluent–EDEM Coupling

Agriculture
Rice seed production is a critical step in breeding high-quality varieties. To ensure seed purity, it is essential that no residual grains or broken ears remain in the harvester header after harvesting each variety, thus preventing cross-contamination ...
Yiren Qing, Lu Chen, Dongquan Chen, Peiyu Wang, Wenbin Sun, Ranbing Yang   +5 more
doaj   +1 more source

Self-Cleaning Properties of Electrospun PVA/TiO2 and PVA/ZnO Nanofibers Composites

Nanomaterials, 2018
In this report, polyvinyl alcohol/zinoxide (PVA/ZnO) & polyvinyl alcohol/titanium dioxide (PVA/TiO2) nanofibers were manufactured in three different concentrations of ZnO and TiO2 NPs for the application of self-cleaning properties because metallic ...
Muhammad Qamar Khan, Davood Kharaghani, Sana Ullah, Muhammad Waqas, Abdul Malik Rehan Abbasi, Yusuke Saito, Chunhong Zhu, Ick Soo Kim   +7 more
doaj   +1 more source

Observation of spatial nonlinear self-cleaning in a few-mode step-index fiber for special distributions of initial excited modes

Scientific Reports, 2021
In this paper, we experimentally demonstrate that a nonlinear Kerr effect in suitable coupling conditions can introduce a spatially self-cleaned output beam for a few-mode step-index fiber.
Zahra Mohammadzahery, Maryam Jandaghi, Ebrahim Aghayari, Hasan Nabavi   +3 more
doaj   +1 more source

Association of Interdental Cleaning Frequency With Tooth Loss and Self-Rated Oral Health: A Cross-Sectional Study

International Dental Journal
Aims: This study investigated the associations of interdental cleaning frequency with lack of functional dentition (missing >8 teeth) and self-rated oral health status.
Wei Zhou, Yuhao Liu, Tao Yin, Mi He, Changyun Fang, Shifang Peng, Yundong Liu   +6 more
doaj   +1 more source

Self-ear cleaning practices and the associated risk of ear injuries and ear-related symptoms in a group of university students

Journal of Public Health in Africa, 2017
Self-ear cleaning is the insertion of objects into the ear canal to clean it, a widespread practice that has the potential to compromise its integrity as a natural, selfcleansing mechanism, and a risk factor for possible injuries.
Nasim Banu Khan, Sivashnee Thaver, Samantha Marlene Govender   +2 more
doaj   +1 more source