Results 51 to 60 of about 22,779 (231)

Variations in the Surface Atmospheric Electric Field on the Qinghai–Tibet Plateau: Observations at China’s Gar Station

Atmosphere
The Qinghai-Tibet Plateau, known as the “third pole” of the Earth with an average elevation of approximately 4500 m, offers a unique natural laboratory for probing the dynamic behavior of the global electric circuit.
Jia-Nan Peng, Shuai Fu, Yan-Yan Xu, Gang Li, Tao Chen, En-Ming Xu   +5 more
doaj   +1 more source

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Progress of International Meridian Circle Program

Kongjian kexue xuebao
In 2024, the Chinese Meridian Project (CMP) completed its construction, deploying 282 instruments across 31 stations. This achievement not only provides a robust foundation but also serves as a reference template for the International Meridian Circle ...
WANG Chi, BLANC Michel, ZHANG Shunrong, DENARDINI Clezio Marcos, LIU William, SHEN Xuhui, WU Jian, XU Jiyao, LI Hui, ZHANG Qinghe, REN Liwen, ZHU Yajun, LI Guozhu, DING Zonghua, LIU Zhengkuan, YANG Fang   +15 more
doaj   +1 more source

Current Helicity and Twist as Two Indicators of The Mirror Asymmetry of solar Magnetic Fields

, 2008
A comparison between the two tracers of magnetic field mirror asymmetry in solar active regions, twist and current helicity, is presented. It is shown that for individual active regions these tracers do not possess visible similarity while averaging by ...
A.A. Pevtsov, A.R. Choudhuri, D. N. Tomin, D. Sokoloff, D. Sokoloff, D.M. Rust, E.N. Parker, E.N. Parker, E.N. Parker, H. Xu, H. Zhang, H. Zhang, H. Zhang, H. Zhang, J. Zhao, K. M. Kuzanyan, K.M. Kuzanyan, L. Gizon, L. Woltjer, M. Hagino, N. Kleeorin, N. Kleeorin, N. Seehafer, S.D. Bao, S.D. Bao, T.J. Wang, V. N. Obridko, V. N. Tutubalin, V.I. Abramenko, V.I. Abramenko, Yu.B. Ponomarenko, Yu.B. Ponomarenko   +31 more
core   +1 more source

Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems

Advanced Functional Materials, EarlyView.
MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
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

Ribbonness of a stable-ribbon surface-link, I. A stably trivial surface-link

, 2020
There is a question asking whether a handle-irreducible summand of every stable-ribbon surface-link is a unique ribbon surface-link. This question for the case of a trivial surface-link is affirmatively answered.
Kawauchi, Akio
core  

Discovery of two new hypervelocity stars from the LAMOST spectroscopic surveys

, 2017
We report the discovery of two new unbound hypervelocity stars (HVSs) from the LAMOST spectroscopic surveys. They are respectively a B2V type star of ~ 7 M$_{\rm \odot}$ with a Galactic rest-frame radial velocity of 502 km/s at a Galactocentric radius of
Chen, Bingqiu, Huang, Yang, Li, Yinbi, Liu, Xiaowei, Tian, Zhijia, Wang, Bo, Wang, Chun, Xiang, Maosheng, Yuan, Haibo, Zhang, Huawei   +9 more
core   +1 more source

Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

Advanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li, Deming Dong, Xiaoyu Yang, Jun Qian, Mengruizhe Kong, Han Wan, Ni Ma, Wei Bai, Pengfei Nan, Binghui Ge, Jiming Song, G. Jeffrey Snyder, Yuan Yu   +12 more
wiley   +1 more source

Combinatorial Seifert fibred spaces with transitive cyclic automorphism group

, 2015
In combinatorial topology we aim to triangulate manifolds such that their topological properties are reflected in the combinatorial structure of their description. Here, we give a combinatorial criterion on when exactly triangulations of 3-manifolds with
Burton, Benjamin, Spreer, Jonathan
core   +1 more source