Results 61 to 70 of about 45,835 (296)

Study on Seismic Dynamic Response of Deep-Buried Tunnel Based on Tectonic Stress

Advances in Materials Science and Engineering, 2022
The southeast region of Tibet in China is prone to earthquakes at high seismic levels. Since the construction of tunnels in this region faces a seismic hazard, it is necessary to explore the seismic responses of related construction areas there.
Junjie He, Song Hu, Yonggang Guo
doaj   +1 more source

Stark tuning of the charge states of a two-donor molecule in silicon

, 2009
Gate control of phosphorus donor based charge qubits in Si is investigated using a tight-binding approach. Excited molecular states of P2+ are found to impose limits on the allowed donor separations and operating gate voltages. The effects of surface (S)
Gerhard Klimeck, Kandasamy G, Klimeck G, Lansbergen G P Rahman R Wellard C J Caro1 J Collaert N Biesemans S Klimeck G Hollenberg L C L Rogge S, Lloyd C L Hollenberg, Rajib Rahman, Seung H Park, Technology Computer Aided Design (TCAD)   +7 more
core   +1 more source

'We're not truckin' around': On and off-road in Samuel Wagan Watson's Smoke Encrypted Whispers [PDF]

, 2020
Cars and roads traverse the poetry of Samuel Wagan Watson, a self-identified Aboriginal man of Bundjalung, Birri Gubba, German and Irish ancestry. The narrator/s of the poems in 'Smoke Encrypted' Whispers are repeatedly on the road or beside it, and ...
Bode, Katherine
core   +1 more source

Furan‐Substituted Phosphine‐Oxide as an Efficient Interfacial Modifier for Wide‐Bandgap Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
We report phosphine‐oxide interlayers for wide‐bandgap perovskite solar cells, in which tuned P = O Lewis basicity enables selective passivation of buried NiOx/perovskite interfaces and introduces interfacial dipoles that strengthen the built‐in field.
JeeHee Hong, Juan Anthony Prayogo, Soobin Heo, Jae Sung Yun, Dong Ryeol Whang, Dong Wook Chang, Hui Joon Park   +6 more
wiley   +1 more source

Atomic Layer Deposition in Transistors and Monolithic 3D Integration

Advanced Functional Materials, EarlyView.
Transistors are fundamental building blocks of modern electronics. This review summarizes recent progress in atomic layer deposition (ALD) for the synthesis of two‐dimensional (2D) metal oxides and transition‐metal dichalcogenides (TMDCs), with particular emphasis on their enabling role in monolithic three‐dimensional (M3D) integration for next ...
Yue Liu, Taoyu Zou, Cheng‐Yan Xu, Liang Zhen, Yang Li, Yong‐Young Noh   +5 more
wiley   +1 more source

Evaluation of Rock Vibration Generated in Blasting Excavation of Deep-buried Tunnels

KSCE Journal of Civil Engineering, 2018
The experimental tunnels of the China Jinping Underground Laboratory are constructed in a maximum overburden depth of 2375 m and subjected to extremely high in situ stress more than 50 MPa. When these deep-buried tunnels are excavated with the method of drill and blast, the surfaces created by blasting are generated almost instantaneously, and thus the
Jianhua Yang, Wenbo Lu, Peng Li, Peng Yan   +3 more
openaire   +1 more source

Multi‐Functional ZnO–Te Heterojunction Devices Enabling Compact Frequency Quadrupler

Advanced Functional Materials, EarlyView.
Wafer‐scale ZnO–Te heterojunction devices featuring tunable double negative differential transconductance (D‐NDT) are demonstrated at ≤ 200°C. Leveraging this unique characteristic, a single‐stage frequency quadrupler is realized, achieving a 64%–75% reduction in device count.
Jae Hyeon Jun, Byeong Gwan Kim, Min Seo Kang, Ui Gwan Shin, Minjae Kim, Kiyung Kim, Hae‐Won Lee, Yongsu Lee, Byoung Hun Lee   +8 more
wiley   +1 more source

Technology and mechanical properties of a shallow-buried biased tunnel approaching in fully weathered granite: A case study of Xiangsi Mountain tunnel

Shuiwen dizhi gongcheng dizhi
As a critical part of a tunnel, the tunnel entrance often encounters issues of shallow burial under bias pressure and poor stability of the surrounding rock.
Dongsheng LI, Yuangui PAN, Yuchao ZHENG
doaj   +1 more source

Detection of a large valley-orbit splitting in silicon with two-donor spectroscopy

, 2012
We measure a large valley-orbit splitting for shallow isolated phosphorus donors in a silicon gated nanowire. This splitting is close to the bulk value and well above previous reports in silicon nanostructures.
Cobian, Manuel, Dupont-Ferrier, Eva, Jehl, Xavier, Niquet, Yann-Michel, Roche, Benoit, Sanquer, Marc, Vinet, Maud, Voisin, Benoit, Wacquez, Romain   +8 more
core   +1 more source

Blasting excavation induced damage of surrounding rock masses in deep-buried tunnels

KSCE Journal of Civil Engineering, 2016
Blasting excavation disturbance is an important influencing factor related to the initiation and the evolution of the surrounding rock damage zone in deep-buried tunnels. Based on the excavation of auxiliary tunnels in the Jinping II Hydropower Station, the effect of blasting excavation disturbance on the surrounding rock damage zone in deep-buried ...
M. Chen, W.B. Lu, P. Yan, Y.G. Hu
openaire   +1 more source