Results 71 to 80 of about 10,738 (171)

A Parallel Robot With Remote Centre‐of‐Motion for Eye Surgery: Design, Kinematics, Prototype, and Experiments

open access: yesThe International Journal of Medical Robotics and Computer Assisted Surgery, Volume 20, Issue 4, August 2024.
ABSTRACT Background Millions of patients suffering from eye disease cannot receive proper treatment due to the lack of qualified surgeons. Medical robots have the potential to solve this problem and have attracted significant attention in the research community.
Yinglun Jian   +3 more
wiley   +1 more source

Effect of V addition on the hardness, adherence and friction coefficient of VC coatings produced by thermo-reactive diffusion deposition

open access: yesDyna, 2015
Se produjeron recubrimientos de carburo de vanadio (VC) sobre sustratos de acero AISI H13 y acero AISI D2 mediante deposito termoreactiva/ difusión (TRD) con el fin de evaluar sus propiedades mecánicas como una función del contenido de vanadio.
Fredy Alejandro Orjuela-Guerrero   +2 more
doaj  

A Technique for Making Nuclear Fusion in Solids [PDF]

open access: yes, 2017
A technique is described for making nuclear fusion at room temperature by compressing a powder mixture comprising a deuteride and catalytic material. The result is explosive beyond known chemical reaction for the materials.
WAYTE, RICHARD
core   +1 more source

A design study of hydrazine and biowaste resistojets [PDF]

open access: yes
A generalized modeling program was adapted in BASIC on a personal computer to compare the performance of four types of biowaste resistojets and two types of hydrazine augmenters. Analyzed biowaste design types were: (1) an electrically conductive ceramic
Barker, L., Page, R. J., Stoner, W. A.
core   +1 more source

Unravelling tertiary students’ ownership, usage, attitudes and preferences of mobile devices as tools for M-learning [PDF]

open access: yes, 2018
Throughout educational institutions around the globe, mobile learning (M-learning) has become a growing field of practice and studies. The number of students that have access to mobile devices is also increasing from time to time.
Alias, Nor Aziah, Md. Ngadiran, Nurizah
core  

AISI D2 Soğuk İş Takım Çeliğinin Farklı Geometriye Sahip Kesici Takımlarla Frezeleme İşleminde Kesme Parametrelerinin Yüzey Pürüzlülüğü ve Takım Aşınmasına Etkisinin Araştırılması

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2018
Bu çalışmada, AISI D2Soğuk İş Takım Çeliğine ısıl işlem uygulanmış ve farklı sertliklerdeki(21-48-56 HRc) malzemeler CNC dik işleme merkezinde işlenerek; kesmekuvvetleri, yüzey pürüzlülük değerleri ve takım aşınmaları incelenmiştir.Frezeleme işleminde ...
Yakup Turgut   +3 more
doaj   +4 more sources

Effect of cutting parameters on surface roughness in dry drilling of AISI D2 tool steel by using Taguchi Method [PDF]

open access: yes, 2018
Hard drilling of AISI D2 reportedly produce accelerated wear to the cutting tool that detrimental to the surface finish. This paper presents the effect of drilling tool and drilling parameters by using Taguchi method to produce minimum surface ...
, M.H. Abu Bakar, , M.H. Abu Bakar   +7 more
core  

Estudio experimental de la conducción del calor en el maquinado de materiales endurecidos con altas velocidades de corte. // Experimental study of heat conduction in mechanization with high cutting speeds of hardened materials.

open access: yesIngeniería Mecánica, 2006
El trabajo trata del estudio teórico-experimental de la conducción del calor en los materiales endurecidos, usados para laproducción de moldes y matrices, al maquinarlos con altas-velocidades del corte.
L. Cardoso Brandão   +2 more
doaj  

Enhancement of Wear Behaviour and Optimization and Prediction of Friction Coefficient of Nitrided D2 Steel at Different Times

open access: yesLubricants
The objective of this study is to evaluate the impact of thermal and thermochemical treatment, specifically gas nitriding, on the wear properties of AISI D2 cold work tool steel.
Abdallah Souid   +3 more
doaj   +1 more source

Prestasi Pahat Karbida Berlapis TiN-Al2O3-TiCN Pada Saat Pembubut Baja Perkakas AISI D2 [PDF]

open access: yes, 2012
Kajian terhadap pahat karbida dilakukan untuk menginvestigasi umur pahat sifat ausnya pada berbagai kondisi proses pemesinan. Pahat karbida yang dilapisi (KC 125) dan tidak dilapisi (K 313) digunakan untuk membubut baha perkakas AISI D2 yang berbentuk ...
Ibrahim, G. A. (Gusri)
core   +1 more source

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