Results 61 to 70 of about 922,436 (391)

Drilling of bone: Effect of drill bit geometries on thermal osteonecrosis risk regions

open access: yesProceedings of the Institution of mechanical engineers. Part H, journal of engineering in medicine, 2018
Bone-drilling operation necessitates an accurate and efficient surgical drill bit to minimize thermal damage to the bone. This article provides a methodology for predicting the bone temperature elevation during surgical bone drilling and to gain a better
Mohd Faizal Ali Akhbar, A. Yusoff
semanticscholar   +1 more source

Novel Biologically Active Glass Fiber Functionalized Using Magnesium Phosphate Cement Promotes Bone and Vascular Regeneration

open access: yesAdvanced Biology, EarlyView.
In this study, a new type of bioactive glass fiber ‐based composite magnesium phosphate bone cement is prepared and verified that its mechanical strength and biological properties. In addition, the cement may have played a biologically active role in the Notch and HIF signaling pathways.
Yuzheng Lu   +12 more
wiley   +1 more source

Impregnated drill bits strengthened by nanoparticles for mineral exploration drilling [PDF]

open access: yes, 2018
In order to improve the drilling efficiency and service life of impregnated diamond drill bit, WC and ZrO2 nanoparticles were introduced into traditional drill bit matrix.
Baochang, L.   +3 more
core  

Impact of Cryogenic Condition and Drill Diameter on Drilling Performance of CFRP

open access: yes, 2017
Machining of carbon fiber-reinforced polymer (CFRP) is a rather hard task due to the inhomogeneity and anisotropy of this material. Several defects occur in the material when CFRP is machined and machining quality deteriorates owing to these material ...
G. Basmacı   +3 more
semanticscholar   +1 more source

A review of treatment methods for oil-based drill cuttings

open access: yesIOP Conference Series: Earth and Environment, 2018
Globally, the operation of oil and gas exploration is increasing, which results in a large number of hazardous oil-based drill cuttings. These oil-based drill cuttings are bound to pose a serious threat to the environment and human health, so a series of
Zhiqiang Huang   +7 more
semanticscholar   +1 more source

Bridging Nature and Technology: A Perspective on Role of Machine Learning in Bioinspired Ceramics

open access: yesAdvanced Engineering Materials, EarlyView.
Machine learning (ML) is revolutionizing the development of bioinspired ceramics. This article investigates how ML can be used to design new ceramic materials with exceptional performance, inspired by the structures found in nature. The research highlights how ML can predict material properties, optimize designs, and create advanced models to unlock a ...
Hamidreza Yazdani Sarvestani   +2 more
wiley   +1 more source

Efek Metode Latihan Drill dan Pendekatan Bermain melalui Koordinasi Mata Tangan untuk Meningkatkan Passing Bawah Volleyball di Sekolah Dasar [Effect of Drill Method and Play Approach through Hand Eye Coordination to Increase Passing Under Volleyball in El

open access: yesPedagogia: Jurnal Pendidikan, 2019
This study aims to determine the effect of drill training methods and approaches to play with eye-hand coordination towards increasing under-passing volleyball. This study used . There was no comparison group in the design group.
Defrizal Defrizal, Suharjana Suharjana
doaj   +1 more source

Technique for anchoring fasteners to honeycomb panels [PDF]

open access: yes, 1969
Two-piece fastener bushing provides mounting surface for components on a three-inch thick honeycomb structure. Specially constructed starter drill and sheet metal drill permit drilling without misalignment.
Brown, W. J.   +2 more
core   +1 more source

Numerical and experimental studies of stick–slip oscillations in drill-strings

open access: yesNonlinear dynamics, 2017
The cyclic nature of the stick–slip phenomenon may cause catastrophic failures in drill-strings or at the very least could lead to the wear of expensive equipment.
Yang Liu   +3 more
semanticscholar   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

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