Results 21 to 30 of about 2,523 (255)

Research on preparation of vitrified bond lapping plates and lapping sapphire performance

Jin'gangshi yu moliao moju gongcheng, 2021
To improve the lapping efficiency and processing quality of the sapphire substrate, two lapping plates composed of vitrified bond diamond lapping pellets with different hardness were developed, and the lapping process experiment was carried out on the ...
LU Jiabin, NIE Xiaowei, YAN Qiusheng, CHEN Haiyang   +3 more
doaj  

Rotating mining technology and underground pressure law of fully mechanized caving face in Baode Coal Mine

Meikuang Anquan, 2021
In order to study the technical problems in the mining of irregular working face and the law of underground pressure in the mining process, take the 81308 fully mechanized caving face of Baode Coal Mine as the background, this paper uses theoretical ...
YANG Xiaodong, LI Cunzhou
doaj   +1 more source

Optimization experiment on eccentric lapping of cylindrical rollers

Nanotechnology and Precision Engineering, 2018
Cylindrical rollers are important elements of bearings, and their machining accuracy and consistency affect the bearing quality. Using a GCr15 cylindrical roller of Ф11 × 12 as the processing object in this study, the effects of loading pressure ...
Jia Su, Julong Yuan, Sen Zhang, Binghai Lv   +3 more
doaj   +1 more source

Research on removal function of fluid hydrodynamic fixed abrasive grinding

Journal of Advanced Research, 2020
Fluid hydrodynamic fixed abrasive grinding (FHFAG) is now evolving into a promising finishing method underpinning the major advances across grinding and lapping sciences.
Pengfei Liu, Dong Ming, Bin Lin
doaj   +1 more source

Scientific Opinion on the use of low atmosphere pressure system (LAPS) for stunning poultry

EFSA Journal, 2014
Abstract The EFSA's Panel on Animal Health and Welfare (AHAW Panel) was asked to deliver a scientific opinion on the use of a low atmosphere pressure system (LAPS) for stunning poultry. Four documents were provided by the European Commission (EC) as the basis for an assessment of the extent to which the LAPS is able to provide a level of animal welfare
Authie, E., Berg, C., Bøtner, A., Browman, H., Capua, I., de Koeijer, A.A., Depner, K., Domingo, M., Edwards, S., Fourichon, C., Koenen, F., More, S., Raj, M.A.B., Sihvonen, L., Spoolder, H.A.M., Stegeman, J.A., Thulke, H.H., Vågsholm, I., Velarde, A., Willeberg, P., Zientara, S.   +20 more
openaire   +3 more sources

Mechanism of Surface Defects in Ultra-Precision Machining of Sesquioxide Laser Crystal Tm: GdScO₃

Micromachines, 2022
It is well-known that the surface quality of laser gain crystal elements is very high in order to ensure the stability of laser system and laser output quality. In the ultra-precision machining process of a new sesquioxide laser crystal Tm: GdScO3, it is
Yuanyuan Fang, Hongbo He, Aihuan Dun, Long Zhang   +3 more
doaj   +1 more source

Guidelines for Pediatric Radiotherapy Simulation: A Report From the Children's Oncology Group Radiation Oncology Discipline

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric radiation therapy presents unique challenges compared to adult treatments, including those of immobilization, potential need for sedation, and the critical importance of accurate, reproducible positioning. Additionally, heightened attention to imaging doses is necessary to minimize long‐term toxicity in survivors.
Parham Alaei, Stephen Mihalcik, Sujith Baliga, Young Kwok, Dana Casey, Eric Ehler, Christiane Burton, John C. Breneman, Daphne A. Haas‐Kogan, Suzanne L. Wolden, Arnold C. Paulino, Nadia N. Laack, Natia Esiashvili, Sarah Milgrom, Christine Hill‐Kayser, Thomas J. Fitzgerald, John A. Kalapurakal, Chia‐Ho Hua   +17 more
wiley   +1 more source

Orthogonal experimental study on the influence of machining parameters on flat lapping of sapphire substrate

AIP Advances
Sapphire is extensively utilized in the optical, aerospace, and civil electronic industries due to its favorable optical, physical, and chemical characteristics.
Sheng Wang, Jiahong Ruan, Shihao Xiao, Qianfa Deng, Tianchen Zhao   +4 more
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

Therapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho, Karim M. Soliman, Wisit Cheungpasitporn, Wannasit Wathanavasin, Ahmed Daoud, Ahmed I. Kamal, Balázs Szamosfalvi, Tibor Fülöp   +7 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source