Results 101 to 110 of about 260,516 (241)

Milling of disc cutter replacing traditional grinding mechanism in machining of nickel-based superalloy honeycomb composites under ice-freezing condition

Journal of Materials Research and Technology
The nickel-based superalloy honeycomb composite (NBSHC) is widely applied in aerospace and defense due to its low density, high-temperature resistance, and excellent specific strength. Although grinding is the conventional method for machining NBSHC, its
Haihang Wang, Chenguang Wang, Pengjie Gao, Han li, Guoqiang Guo, Qinglong An, Weiwei Ming, Ming Chen, Qi Wang, Zhen Yin   +9 more
doaj   +1 more source

Health Care Use Among Patients Presenting to Emergency Department for Gout Flares in Ontario, Canada: A Population‐Based Health Systems Analysis

Arthritis Care &Research, EarlyView.
Objective We characterized emergency department (ED) gout visits and identified patient characteristics and health services patterns contributing to ED presentations. Methods We conducted a population‐based study of ED gout visits in Ontario, Canada, between 2014 and 2023.
Timothy S. H. Kwok, Samantha Morais, William K. Silverstein, Clare L. Atzema, Gregory Choy, Priyanka Chandratre, Ping Li, Jessica Widdifield   +7 more
wiley   +1 more source

Mapping the Social Network Structure and Composition of Black Individuals With Rheumatic and Musculoskeletal Conditions

Arthritis Care &Research, EarlyView.
Objective Our objective was to describe the social networks of Black individuals with rheumatic and musculoskeletal conditions and understand the clustering of health‐related behaviors to inform future community‐based, peer‐led interventions. Methods We used an adapted Personal Network Survey for Clinical Research (PERSNET) to map the personal social ...
Taussia Boadi, Amar Dhand, Leah Santacroce, Neil Pillai, Komel Safdar, Mia T. Chandler, Ariel Childs, Monica Crespo‐Bosque, Gina Curry, Mary Dollear, Alice Eggleston, Daniel Erickson, Dieufort Fleurissaint, Denice Garrett, Gail Granville, Tyler Green, Magdalena Hamielec, Elena Losina, Karen Mancera‐Cuevas, Mary Ann Nelson, Chisa Nosamiefan, Bisola Ojikutu, Tonya S. Roberson, Mary Beth Son, Marie Jacques Toussaint, Michael York, Rosalind Ramsey‐Goldman, Candace H. Feldman   +27 more
wiley   +1 more source

Research on the Cutting Efficiency of TBM Cutters in Jointed Rock Mass Based on a Multivariate Nonlinear Regression Model

Infrastructures
The factors influencing the cutting efficiency of tunnel boring machine (TBM) cutters in jointed rock masses are very complex. To investigate TBM disc cutter cutting performance under variable cutter spacing and penetration depth, Particle Flow Code (PFC)
Pengfei Song, Bingquan Liu, Zhiwen Tan, Chengzhi Yi, Jia Shi, Xin Xiang, Yue Peng, Junning Xie, Junfeng Liu, Hongzhi Cui, Bolong Liu   +10 more
doaj   +1 more source

Effect Modification of Cigarette Smoking on the Relationship between Post‐traumatic Stress Disorder, Other Mental Health Conditions and Rheumatoid Arthritis Risk: A Large Case‐Control Study in U.S. Veterans

Arthritis Care &Research, Accepted Article.
Objective We examined associations of post‐traumatic stress disorder (PTSD) and other mental health disorders (OMH) with rheumatoid arthritis (RA), accounting for effects of smoking. Methods We conducted a matched case‐control study, identifying incident RA cases and controls using national Veteran Health Administration data (2006‐2019).
Kelsey Coziahr, Harlan Sayles, Tate M. Johnson, Joshua F. Baker, Punyasha Roul, Grant W. Cannon, Gary A. Kunkel, Katherine D. Wysham, Gail S. Kerr, Amir A. Razmjou, Isaac Smith, Jennifer L. Barton, Maria I. Danila, Jonathan S. Richards, Bryant R. England, Ted R. Mikuls   +15 more
wiley   +1 more source

Rock-breaking mechanism of disc cutters and rock muck characteristics for the conical cutterhead of shaft blind full-face boring machine

KSCE Journal of Civil Engineering
To investigate the rock-breaking mechanism of disc cutters at the conical surface of conical cutterhead, a three-dimensional model of rock fragmentation by disc cutters was established using the discrete element method.
Hongying Huang, Yusheng Shen, Huisheng Guan   +2 more
doaj   +1 more source

GEOMETRY AND SIMULATION OF THE GENERATION OF CYLINDRICAL GEARS BY AN IMAGINARY DISC CUTTER

, 2009
This paper proposed a method of representing the geometry of an imaginary disc cutter in parameter form. The undercutting condition of the imaginary disc cutter is studied, and the mathematical model of the generated gears is developed by the ...
Shyue-Cheng Yang, Tsang-Lang Liang
core   +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

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Study on Effects of Disc Cutter Sensors’ Arrangement on Electrical Resistivity Survey

, 2016
Expectation of rapid change of ground in tunnel boring machine is difficult because tunnel face is not revealed. Probe drilling, tunnel seismic prediction (TSP), and tunnel electrical resistivity prospecting system (TEPS) are widely used TBM ahead ...
Ryu, Hee-Hwan, Lee, Dae-Soo, Cho, Gye-Chun, Jin, Gyu-Nam, Kim, Kyoung-Yul, Hong, Chang Ho   +5 more
core   +1 more source