Results 81 to 90 of about 517,779 (310)
EXPERIMENTAL MONTAGE USED TO STUDY THE VIBRATION OF THE DRILL TOOL IN THE PROCESS OF MANUFACTURING THE BRONZE MATERIALS [PDF]
Fiabilitate şi Durabilitate, 2013 In this paper we present the experimental setup used to study the vibration of the drill tool, during the drilling of the bronze products. In this paper the vibrations are analyzed during the drilling on the universal lathe machines.
Cosmin-Mihai MIRIŢOIU +4 more
doaj
Arithmetic--some drill aspects [PDF]
, 1927 Thesis (M.A.)--Boston ...
Finneran, Elizabeth Margaret
core +1 more source
Advanced Engineering Materials, EarlyView.Aluminum and nitride coatings are used in industry because they are hard, resist wear, and protect against oxidation. Adding boron can improve friction behavior and other properties. This study tests coatings on surfaces with different finishes. Results show smoother surfaces perform better, while rough ones wear faster, although coatings can reduce ...
Adrián Claver +9 more
wiley +1 more source
Jurnal Fisika Flux, 2017 Abstrak: Pembongkaran over burden di Pit Central PT. SIS dilakukan dengan kegiatan peledakan. Sebelum kegiatan peledakan, dilakukan kegiatan pemboran untuk penyediaan lubang ledak dengan geometri dan pola tertentu.
Didiet Try Setiadi +2 more
doaj +3 more sources
Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
wiley +1 more source
Controlled release of free-falling test models [PDF]
, 1970 Releasing device, powered by a drill motor through an adjustable speed reducer, has a spinning release head with three retractable spring-loaded fingers.
Fife, W. J., Holway, H. P.
core +1 more source
Electroactive Metal–Organic Frameworks for Electrocatalysis
Advanced Functional Materials, EarlyView.Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska +7 more
wiley +1 more source
Drilling Processes with Hydraulic Percussion Rock Drills
Journal of MMIJ, 2017 Rock drills were developed about two hundred years ago, and hydraulic percussion rock drills are about half-century old. Performance and efficiency of rock drills have been increased by a number of researchers and engineers.
Kimihiro HASHIBA +2 more
doaj +1 more source
Ultrasonic Planetary Core Drill: Overview and Results from Field Trial [PDF]
, 2017 In the effort to explore the subsurface of terrestrial bodies, we seek to obtain better samples from ever greater depths. Many organisations are working towards technologies that can achieve this goal whilst ensuring compatibility with the likely ...
Harkness, Patrick +4 more
core
Advanced Functional Materials, EarlyView.This review systematically highlights the latest achievements in mixed‐valence states relevant to hydrogen and oxygen evolution reactions, providing essential insights into future directions and methods for large‐scale practical implementation. This critical review is expected to provide an overview of recent advancements in diverse valence‐state metal
Jitendra N. Tiwari +4 more
wiley +1 more source