Results 91 to 100 of about 4,253,055 (306)

Optimal Control Drives Ultrafast and Energy‐Efficient Magnetization Switching in Van der Waals Magnets

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The accelerating expansion of data‐centric technologies is sharply increasing the energy burden of information storage, placing unprecedented pressure on the efficiency of magnetic switching. Conventional field‐driven reversal, once the foundation of magnetic memory, has become impractical in modern architectures due to its high energy cost ...
Mohammad H. Badarneh   +2 more
wiley   +1 more source

[Central America] : father Neptune presenteth ye Grace Line fleet to ye olde Spanish Main

open access: yes, 2016
1 Mapa, color. - Mapa pictòric. - `... The informative interest of ths carte is historical and topograpical yet it is rendered in the manner humorous...`.
Grace Line [Companyia naviera]
core   +1 more source

Unstuck Technology for EPB/TBM Dual Mode Shield Machine Stuck in Rock Stratum

open access: yesChengshi guidao jiaotong yanjiu
[Objective] During the tunneling process of the EPB (earth pressure balance shield machine)/TBM (full-face hard rock tunnel boring machine) dual-mode shield tunneling machine, problems such as excessive wear of the cutting tools and improper setting of ...
DUAN Yueqiang
doaj   +1 more source

Inspection Test of a Tunnel with an Inspection Vehicle for Tunnel Lining Concrete

open access: yesJournal of Robotics and Mechatronics, 2019
Users of bridges and tunnels are generally concerned about the aging of these structures. Periodic inspections are necessary to keep old bridges and tunnels healthy. Inspection engineers must approach the inspection points as close as possible by mobile elevating of the work platform for close visual inspection of lining concrete.
Satoru Nakamura   +6 more
openaire   +2 more sources

Electron tunneling in chemistry : chemical reactions over large distances /

open access: yes, 1989
In Volume 30, an attempt is made to consider comprehensively both theoretical and experimental data that have been obtained to date on electron tunneling reactions involving chemical compounds of various classes, and to discuss the role played by these ...
Khaĭrutdinov, R. F.(Rafail Fattakhovich)   +3 more
core  

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

open access: yesAdvanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj   +8 more
wiley   +1 more source

Muck Problems in Subway Shield Tunneling in Sandy Cobble Stratum

open access: yesPolish Maritime Research, 2016
Experiments aiming at the muck improvement for Chengdu’s subway shield tunneling in water-rich sandy cobble ground initially finds out the kinds and ratio of muck improver suitable for the this strata, and through the field application determines the ...
Cui Kai, Lin Weikang
doaj   +1 more source

Centrifugal model test of group tunneling with small spacing beneath existing tunnels

open access: yesYantu gongcheng xuebao, 2018
The existing metro line 1 in Shenzhen is under-crossed by four shield tunnels of metro line 7 and line 9 in close proximity. Based on the physical modeling of centrifuge tests, the influences on the stress of surrounding soil from construction of ...
JIN Da-long 1, 2, YUAN Da-jun 1, 2, WEI Jia-xin 3, LI Xing-gao 1, 2, LU Ping 1, 2
doaj   +1 more source

Tunneling Time in Quantum Mechanics

open access: yes, 2009
: The longstanding issue of how much time it takes a particle to tunnel through quantum barriers is discussed; in particular, the phenomenon known as the Hartman effect is reviewed.

core  

ROOM TEMPERATURE GOLD-VACUUM-GOLD TUNNELING EXPERIMENTS

open access: yes, 1986
An experiment has been completed which demonstrated quantum mechanical tunneling of electrons between two gold electrodes separated in vacuum. The tunneling current between the gold electrodes has been measured, for fixed voltages of 0.1 and 0.01 volts ...
Teague, E.C.
core   +1 more source

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