Results 71 to 80 of about 1,879,284 (292)

Handbook of Establishing and Maintaining Oxygen‐Free Atmospheres

Advanced Engineering Materials, EarlyView.
This study presents a practical framework for creating oxygen‐free atmospheres at ambient pressure using silane‐doped inert gases. The results show that ultra‐low oxygen levels and strongly reduced water content can be achieved through controlled silane dosing, drying systems, and sensor monitoring.
Sascha Jan Zimmermann, René Gustus, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +3 more
wiley   +1 more source

Two path transport measurements on a triple quantum dot [PDF]

, 2007
We present an advanced lateral triple quantum dot made by local anodic oxidation. Three dots are coupled in a starlike geometry with one lead attached to each dot thus allowing for multiple path transport measurements with two dots per path.
L. P. Kouwenhoven, M. C. Rogge, R. J. Haug, W. G. van der Wiel   +3 more
core   +3 more sources

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

直齿锥齿轮修形齿面安装误差敏感性分析

Jixie chuandong, 2014
On the basis of establishing the straight bevel gear meshing coordinate system with installation error,the way of using Gauss curvature of different surface to indicate installation error sensitivity of the straight bevel gear modification tooth surface ...
曹雪梅, 娄佳佳, 马战勇
doaj  

Tangle- and contact-free path planning for a tethered mobile robot using deep reinforcement learning

Frontiers in Robotics and AI
This paper presents a tangle- and contact-free path planning (TCFPP) for a mobile robot attached to a base station with a finite-length cable. This type of robot, called a tethered mobile robot, can endure long-time exploration with a continuous power ...
Ryuki Shimada, Genya Ishigami
doaj   +1 more source

Non-Contact Friction for Ion-Surface Interactions

, 2015
Non-contact friction forces are exerted on physical systems through dissipative processes, when the two systems are not in physical contact with each other, or, in quantum mechanical terms, when the overlap of their wave functions is negligible.
Jentschura, U. D., Lach, G.
core   +1 more source

Lattice Simulations for Light Nuclei: Chiral Effective Field Theory at Leading Order [PDF]

, 2006
We discuss lattice simulations of light nuclei at leading order in chiral effective field theory. Using lattice pion fields and auxiliary fields, we include the physics of instantaneous one-pion exchange and the leading-order S-wave contact interactions.
Amroun, Aoki), B. Borasoy, Beane, Beane, Beane, Becher, Bedaque, Bedaque, Bedaque, Bernard, Bogner, Bogner, Borasoy, Borie, Braaten, Carlson, Caurier, Chang, Chen, Coon, Coon, Creutz, Creutz, D. Lee, Duane, E. Epelbaum, Efimov, Efimov, Efros, Epelbaum, Epelbaum, Epelbaum, Epelbaum, Epelbaum, Fantoni, Forssen, Fujii, Fukugita, Glöckle, H. Krebs, Hubbard, Jenkins, Kaiser, Kamada, Kievsky, Kievsky, Krebs, Kuramashi, Lanczos, Lee, Lee, Lee, Lee, Lee, Lee, Lin, Lüscher, Machleidt, Machleidt, Müller, Navratil, Navratil, Nogga, Nogga, Nogga, Ordonez, Pederiva, Pieper, Pieper, Pieper, Pieper, Platter, Platter, Platter, Platter, Pudliner, Sarsa, Seki, Stoks, Stratonovich, Thomas, U. -G. Meißner, Varga, Weinberg, Weinberg, Wiringa, Wiringa, Wiringa, Wu, Wu   +90 more
core   +2 more sources

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

Advanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm, Lukas Knöchel, Thomas Schemmel, Christos G. Aneziris, Anja Weidner, Horst Biermann   +5 more
wiley   +1 more source

Computerized generation and simulation of meshing of a novel crown gear coupling avoiding edge contact

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2019
To avoid the occurrence of the hub tooth tip edge contact with the sleeve tooth root flank and the sleeve tooth tip edge contact with the hub tooth root flank, a novel crown gear coupling composed of a hub with profile crowning, longitude crowning, and ...
Yabin GUAN, Xiaohui YANG, Zongde FANG
doaj   +1 more source

Removing Oxide Layers and Retaining Oxide‐Free Steel Surfaces by Polishing in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this study, the efficacy of wet mechanical polishing under an oxygen‐free atmosphere for deoxidation and the retention of an oxide‐free steel surface are elucidated using X‐ray photoelectron spectroscopy. The methodology proved successful; however, the results were highly dependent on the preparation of the solvents used to clean the samples after ...
Friedrich Bürger, Lienhard Wegewitz, Wolfgang Maus‐Friedrichs   +2 more
wiley   +1 more source