Results 111 to 120 of about 878,195 (332)

Structure Functions of Pseudo Null Curves in Minkowski 3-Space [PDF]

open access: gold, 2020
Jinhua Qian   +3 more
openalex   +1 more source

Enhanced Gamma Radiation Shielding Using Epoxy Quartz Fabric Composites Reinforced With CoCl2 Microparticles

open access: yesAdvanced Engineering Materials, EarlyView.
The growing demand for lightweight, nontoxic, and multifunctional gamma shielding materials has intensified efforts to find alternatives to conventional lead and aluminum‐based protectants. In this work, we develop epoxy quartz fabric composites reinforced with cobalt chloride (CoCl2) microparticles, fabricated via hand lay‐up with varying filler ...
Summan Urooge   +7 more
wiley   +1 more source

A method for suppressing resonance response of a vibration system coupled by springs

open access: yesNihon Kikai Gakkai ronbunshu, 2019
Since interior noise of an electric vehicle driven by motor has no engine noise, the contribution of the road induced noise at the low-middle vehicle speed range is higher and the noise is more noticeable for passengers compared to a conventional ...
Masashi KOMADA   +3 more
doaj   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling   +2 more
wiley   +1 more source

Closed-form solutions of the kinetostatics of a 2limbs 6 dof parallel mechanism with kinematic and actuation redundancies

open access: yesNihon Kikai Gakkai ronbunshu, 2018
A novel two-limb six-degrees-of-freedom (dof) parallel robot redundantly driven by eight actuators is proposed. The proposed robot was named Atarigi Carrier or ATARIGI for short. An atarigi is a long wooden pestle, an instrument used in Japanese cooking.
Takashi HARADA, Toru MAKINO
doaj   +1 more source

Null surfaces of null Cartan curves in Anti-de Sitter 3-space

open access: yesThe Journal of Nonlinear Sciences and Applications, 2017
Summary: In this paper, we consider the null surfaces of null Cartan curves in Anti-de Sitter 3-space and making use of singularity theory, we classify the singularities of the null surfaces and investigate the relationships between singularities of the null surfaces and differential geometric invariants of null Cartan curves in Anti-de Sitter 3-space.
Zhao, Guangyu   +3 more
openaire   +3 more sources

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

open access: yesAdvanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin   +4 more
wiley   +1 more source

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