نتایج جستجو برای: diamond core drill

تعداد نتایج: 240568  

Journal: :Optics express 2015
Zhengyong Li Changrui Liao Yiping Wang Lei Xu Dongning Wang Xiaopeng Dong Shen Liu Qiao Wang Kaiming Yang Jiangtao Zhou

A Mach-Zehnder interferometer based on a twin-core fiber was proposed and experimentally demonstrated for gas pressure measurements. The in-line Mach-Zehnder interferometer was fabricated by splicing a short section of twin-core fiber between two single mode fibers. A micro-channel was created to form an interferometer arm by use of a femtosecond laser to drill through one core of the twin-core...

Among the power drills ( Electrical/ Pneumatic/Battery ) used in Orthopedic surgery, battery drill has got several advantages. Surgeons in low resource settings could not routinely use Orthopedic battery drills (OBD) due to the prohibitive cost of good drills or poor quality of other drills. “Hardware” or Engineering battery drill (HBD) is a viable alternative to OBD. HBD is easy to procure, ru...

2016
Yali Hou Changhe Li Hongliang Ma Yanbin Zhang Min Yang Xiaowei Zhang

To overcome strong drilling force and over high temperature during orthopedic surgery, the four medical drills with different geometrical shapes by using superhard materials were designed. The bone drilling temperature field of superhard drill was theoretical analyzed. Results showed that brazed step drill has the most ideal drilling temperature. It controls the maximum bone temperature below 4...

Journal: :Minerals 2022

Different techniques have been combined to identify the structure and chemical composition of siliceous breccia from a drill core nickel laterites in New Caledonia (Tiebaghi mine). XRD analyses show quartz as major phase. Micro-Raman spectroscopy confirmed presence reddish microcrystalline phase with inclusion microparticles iron oxides oxyhydroxide. Lithoclasts present are composed lizardite, ...

Journal: :Herald of Dagestan State Technical University. Technical Sciences 2014

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