Results 101 to 110 of about 777,500 (302)

Effects of Reinjection on Flow Field of Open Jet Automotive Wind Tunnel Test Section

Journal of Applied Fluid Mechanics, 2018
The distributions of axial static pressure coefficient and flow fluctuation in the test section which affect aerodynamic measurement in an open jet wind tunnel is presented.
Q. Li, W. Dai, L. Zhong, Z. Yang, K. Du, Y. Xu, M. M. Rashidi   +6 more
doaj  

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

Advanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand, Nuno Estrócio, Ji S. Kim, Babak Bakhit, Marian C. Istrate, Corneliu Ghica, Tiago Rebelo, Nives Strkalj, Abin Varghese, Bernardo Almeida, Luís S. Marques, Bipin Rajendran, Judith L. MacManus‐Driscoll, José P. B. Silva   +13 more
wiley   +1 more source

Review on water disaster prevention of tunnels

Yantu gongcheng xuebao
Water disaster in tunnel engineering is a persistent problem in tunnel field. To address this issue, this paper summarizes the literature of water disaster prevention in tunnel engineering, defines the problem of water disaster in tunnel engineering ...
WANG Fuming, CAI Zhiyan, GUO Chengchao, TAN Ting, SU Fangchen   +4 more
doaj   +1 more source

Shot Noise in Magnetic Tunnel Junctions: Evidence for Sequential Tunneling

, 2007
We report the experimental observation of sub-Poissonian shot noise in single magnetic tunnel junctions, indicating the importance of tunneling via impurity levels inside the tunnel barrier.
F. G. Aliev, J. S. Moodera, L. Jiang, R. Guerrero, T. Miyazaki, T. S. Santos, Y. Tserkovnyak   +6 more
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

Calculation of Temperature Action of Flat Steel Box Girder of Long-Span Bridges Using a Joint Model of ARMA Mean and GARCH Variance

Shock and Vibration
Using the monitoring temperature field data from the flat steel box girder, the time histories of temperature data and temperature difference data are investigated using the extreme value analysis method.
Jun Yang, Dacheng Zhao, Bin Chen, Gaoxin Wang   +3 more
doaj   +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

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

Study on dynamic responses and impact factors of long span deck type CFST arch bridge under vehicle loads

Scientific Reports
The long span deck type concrete filled steel tube (CFST) arch bridge encounters considerable safety risks under intricate traffic loads because to its extensive span, elevated columns, and pronounced dynamic sensitivity.This study utilizes the Wujiang ...
Yong Zeng, Nianchuan Yin, Yujie Tan, Shihao Qi, Hongmei Tan   +4 more
doaj   +1 more source

Study on Deformation Characteristics of the Segment in the Underwater Shield Tunnel with Varying Earth Pressure

Buildings
The segment in an underwater shield tunnel is influenced by the change of earth pressure and water pressure. Therefore, the law of segment deformation should be mastered for the safe operation of the tunnel. To obtain the law of segment deformation under
Rongjun Xing, Yujun Li, Chuan He, Daiqiang Zhu, Yufu Li, Chaofan Yao, Yu Liu, Pai Xu, Zhongchao Zhao   +8 more
doaj   +1 more source