Results 11 to 20 of about 76,940 (295)

Bromine radical as a visible-light-mediated polarity-reversal catalyst [PDF]

iScience, 2021
Summary: Polarity-reversal catalysts enable otherwise sluggish or completely ineffective reactions which are characterized by unfavorable polar effects between radicals and substrates. We herein disclose that when irradiated by visible light, bromine can
Han Wang, Haiwang Liu, Mu Wang, Meirong Huang, Xiangcheng Shi, Tonglin Wang, Xu Cong, Jianming Yan, Jie Wu   +8 more
doaj   +2 more sources

MiR-30c suppresses the proliferation, metastasis and polarity reversal of tumor cell clusters by targeting MTDH in invasive micropapillary carcinoma of the breast [PDF]

Heliyon
Purpose: Invasive micropapillary carcinoma (IMPC) of the breast has a high propensity for lymphovascular invasion and axillary lymph node metastasis and displays an ‘inside-out’ growth pattern, but the molecular mechanism of invasion, metastasis and cell
Yunwei Han, Weidong Li, Renyong zhi, Gui Ma, Ang Gao, Kailiang Wu, Hui Sun, Dan Zhao, Yiling Yang, Fangfang Liu, Feng Gu, Xiaojing Guo, Jintang Dong, Shuai Li, Li Fu   +14 more
doaj   +2 more sources

Polarity‐Reversal of Exchange Bias in van der Waals FePS3/Fe3GaTe2 Heterostructures [PDF]

Advanced Science
Exchange bias (EB) in antiferromagnetic (AFM)/ferromagnetic heterostructures is crucial for the advancement of spintronic devices and has attracted significant attention.
Han Xiao, Bingbing Lyu, Mengjuan Mi, Jian Yuan, Xiandong Zhang, Lixuan Yu, Qihui Cui, Chaofan Wang, Jun Song, Mingyuan Huang, Yufeng Tian, Liang Liu, Takashi Taniguchi, Kenji Watanabe, Min Liu, Yanfeng Guo, Shanpeng Wang, Yilin Wang   +17 more
doaj   +2 more sources

Investigating skyrmion stability and core polarity reversal in NdMn2Ge2 [PDF]

Scientific Reports
We present a study on nanoscale skyrmionic spin textures in $$\hbox {NdMn}_{{2}}\hbox {Ge}_{{2}}$$ , a rare-earth complex noncollinear ferromagnet. We confirm, using X-ray microscopy, that $$\hbox {NdMn}_{{2}}\hbox {Ge}_{{2}}$$ can host lattices of ...
Samuel K. Treves, Victor Ukleev, Andreas Apseros, Jamie Robert Massey, Kai Wagner, Paul Lehmann, Aki Kitaori, Naoya Kanazawa, Jeffrey A. Brock, Simone Finizio, Joakim Reuteler, Yoshinori Tokura, Patrick Maletinsky, Valerio Scagnoli   +13 more
doaj   +2 more sources

Extraordinarily long duration of Eocene geomagnetic polarity reversals [PDF]

Communications Earth & Environment
One of the most intriguing attributes of Earth’s magnetic field is that it reverses polarity. Previous palaeomagnetic records mainly from the last ~17 million years indicate that the reversal process typically occurs over ten thousand or fewer years ...
Yuhji Yamamoto, Slah Boulila, Futoshi Takahashi, Peter C. Lippert   +3 more
doaj   +2 more sources

Charge Accumulation Characteristics of Nonlinear Conductive SIR Composites under Polarity Reversal Voltage

Zhongguo dianli, 2020
The HVDC cable accessory is the weak point of the cable system. In order to study the effect of the nonlinear conductivity on the charge accumulation property of SiR cable accessory insulation under polarity reversal voltage, this paper prepared a SiR ...
Zhuoran YANG, Boxue DU, Zhonglei LI, Chong HAN, Cheng ZHANG   +4 more
doaj   +1 more source

Polar caps during geomagnetic polarity reversals [PDF]

Geophysical Journal International, 2018
Fil: Zossi, Bruno Santiago. Universidad Nacional de Tucuman. Facultad de Ciencias Exactas y Tecnologia; Argentina. Universidad Nacional de Tucuman. Instituto de Fisica del Noroeste Argentino. - Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico Conicet Noa Sur.
Bruno Zossi, Mariano Fagre, Hagay Amit, Ana G Elias   +3 more
openaire   +3 more sources

The Interaction of New and Old Magnetic Fluxes at the Beginning of Solar Cycle 23 [PDF]

, 1999
The 11-year cycle of solar activity follows Hale's law by reversing the magnetic polarity of leading and following sunspots in bipolar regions during the minima of activity. In the 1996-97 solar minimum, most solar activity emerged in narrow longitudinal
A. G. Kosovichev, Ambroz P., Bumba V., E. E. Benevolenskaya, J. T. Hoeksema, Newton H. W., P. H. Scherrer, Vitinskij Y. I.   +7 more
core   +2 more sources

Investigation of electrode passivation during electrocoagulation treatment with aluminum electrodes for high silica content produced water

Water Science and Technology, 2022
One of the main challenges for the implementation of electrocoagulation (EC) in water treatment are fouling and passivation of the electrodes, especially for applications with high contaminant concentrations.
Nael G. Yasri, Markus Ingelsson, Michael Nightingale, Aprami Jaggi, Michael Dejak, Katerina Kryst, Thomas B. P. Oldenburg, Edward P. L. Roberts   +7 more
doaj   +1 more source

Ultrafast Reversal of the Ferroelectric Polarization [PDF]

Physical Review Letters, 2017
The ability to manipulate ferroelectrics at ultrafast speeds has long been an elusive target for materials research. Coherently exciting the ferroelectric mode with ultrashort optical pulses holds the promise to switch the ferroelectric polarization on femtosecond timescale, two orders of magnitude faster compared to what is possible today with pulsed ...
R. Mankowsky, A. von Hoegen, M. Först, A. Cavalleri   +3 more
openaire   +5 more sources