Results 131 to 140 of about 513,317 (192)

Sleeve material, height, and drill surface changes in guided endodontics: Vicker's hardness and scanning electron microscope evaluation (A pilot study). [PDF]

BMC Oral Health
Muryani A, Aripin D, Dharsono HDA, Wicaksono S, Rajion ZA, Wirawan BN, Wardoyo AKS, Prasetia W.   +7 more
europepmc   +1 more source

Drilling Problems of Directional Drilling

Journal of the Japanese Association for Petroleum Technology, 1972
openaire   +2 more sources

A Novel, Low-Cost, Non-laboratory Training Model for Neurosurgical Microdrilling Skills: A Proof-of-Concept Study. [PDF]

Cureus
Nerntengian N, Birbilis T, Tokas G, Ivanchenko A, Hajduk A, Sakowitz OW.   +5 more
europepmc   +1 more source

Drill Geometry and Hole Drilling

Journal of the Japan Society for Precision Engineering, 2019
openaire   +2 more sources

Numerical simulation study of gas-solid two-phase flow characteristics in borehole sampling of coal cuttings. [PDF]

PLoS One
Xue S, Zhang L, Zheng X, Gao C, Liu S.
europepmc   +1 more source

A case study on the passability of slim dual bend screw drills in high curvature sidetracking through slim boreholes from the Southern Ordos Basin. [PDF]

Sci Rep
Hui Z, Xugang L, Zhanmiao Y, Jiaqin L, Changhao W, Qianwen F, Shuan M, Shaojie L.   +7 more
europepmc   +1 more source

Research on Delamination Damage Factor of Hole-Making Process Optimization Based on Carbon Fiber Composite Materials. [PDF]

Polymers (Basel)
Liu L, Lai Y, Zhang Y, Huang L, Yang J, Jiang Y, Hu Z, Li Z, Wang B.   +8 more
europepmc   +1 more source

A simple and aesthetically pleasing floating craniotomy: How I do it. [PDF]

Acta Neurochir (Wien)
Li T, Li Q, Xia J, Dong Y, Ren M.
europepmc   +1 more source