Results 31 to 40 of about 3,259,058 (349)

Integration of Sentinel-1A, ALOS-2 and GF-1 Datasets for Identifying Landslides in the Three Parallel Rivers Region, China

Remote Sensing, 2022
In the process of using InSAR technology to identify active landslides, phenomena such as steep terrain, dense vegetation, and complex clouds may lead to the missed identification of some landslides.
Cong Zhao, Jingtao Liang, Su Zhang, Jihong Dong, Shengwu Yan, Lei Yang, Bin Liu, Xiaobo Ma, Weile Li   +8 more
doaj   +1 more source

Crystal structure of catena-poly[diaqua-bis(μ2-2-(4-(2,4,4-trimethylpentan-2-yl)phenoxy)propanoato-κ2O:O')-(2-(4-(2,4,4-trimethylpentan-2-yl)phenoxy)propanoato-κ2O,O')yttrium(III)], C51H79O11Y

Zeitschrift für Kristallographie - New Crystal Structures, 2021
C51H79O11Y, monoclinic, P21/c (no. 14), a = 8.8682(3) Å, b = 22.1328(8) Å, c = 27.9848(10) Å, β = 96.710(1)°, V = 5455.2(3) Å3, Z = 4, Rgt(F) = 0.0495, wRref(F2) = 0.1275, T = 296(2) K.
Zhong Ke-Xiang, Zhang Rong-Gui, Li Lai-Chao, Zhao De-Sen, Wang Yan-Liang   +4 more
doaj   +1 more source

Effect of Ho Substitution on Magnetic Properties and Microstructure of Nanocrystalline Nd-Pr-Fe-B Alloys

Metals, 2022
The inevitable thermal demagnetization of magnets at high-temperatures is a key issue for Nd-Fe-B based permanent magnetic materials, especially for electric motors.
Caihai Xiao, Weiwei Zeng, Yongli Tang, Cifu Lu, Renheng Tang, Zhigang Zheng, Xuefeng Liao, Qing Zhou   +7 more
doaj   +1 more source

Afganistan and rare earths [PDF]

Global Economic Observer, 2013
On our planet, over a quarter of new technologies for the economic production of industrial goods, are using rare earths, which are also called critical minerals and industries that rely on these precious items being worth of an estimated nearly five trillion dollars, or 5 percent of world gross domestic product.
Emilian M. Dobrescu, Edith Mihaela Dobre
openaire   +1 more source

Improved magnetic properties and thermal stabilities of Pr-Nd-Fe-B sintered magnets by Hf addition

AIP Advances, 2018
Nd2Fe14B-type permanent magnets have been widely applied in various fields such as wind power, voice coil motors, and medical instruments. The large temperature dependence of coercivity, however, limits their further applications.
Qingzheng Jiang, Weikai Lei, Qingwen Zeng, Qichen Quan, Lili Zhang, Renhui Liu, Xianjun Hu, Lunke He, Zhiqi Qi, Zhihua Ju, Minglong Zhong, Shengcan Ma, Zhenchen Zhong   +12 more
doaj   +1 more source

Recent developments and applications on high-performance cast magnesium rare-earth alloys

Journal of Magnesium and Alloys, 2020
During the past decades, with the increasing demands in lightweight structural materials, Mg alloys with low density and high performance have been extensively investigated and partly applied in some industries.
Guohua Wu, Cunlong Wang, Ming Sun, W. Ding   +3 more
semanticscholar   +1 more source

Magnetoelectricity and Magnetostriction due to the Rare Earth Moment in TmAl$_3$(BO$_3$)$_4$

, 2010
The magnetic properties, the magnetostriction, and the magnetoelectric effect in the d-electron free rare-earth aluminum borate TmAl$_3$(BO$_3$)$_4$ are investigated between room temperature and 2 K.
Bezmaternykh, L. N., Chaudhury, R. P., Chu, C. W., Lorenz, B., Sun, Y. Y., Temerov, V. L.   +5 more
core   +1 more source

Why rare-earth ferromagnets are so rare: insights from the p-wave Kondo model [PDF]

, 2017
Magnetic exchange in Kondo lattice systems is of the Ruderman-Kittel-Kasuya-Yosida type, whose sign depends on the Fermi wave vector, $k_F$ . In the simplest setting, for small $k_F$ , the interaction is predominately ferromagnetic, whereas it turns more
Ahamed, Shadab, Erten, Onur, Moessner, Roderich   +2 more
core   +3 more sources

Microstructure, magnetic and magnetocaloric properties in Ni42.9Co6.9Mn38.3Sn11.9 alloy ribbons

AIP Advances, 2018
The microstructure, magnetic and magnetocaloric properties are investigated in the melt-spun and annealed Ni42.9Co6.9Mn38.3Sn11.9 ribbons. The columnar grains grow perpendicular to ribbon surfaces.
S. C. Ma, Q. Ge, S. Yang, K. Liu, X. Q. Han, K. Yu, Y. Song, Z. S. Zhang, Q. Z. Jiang, C. C. Chen, R. H. Liu, Z. C. Zhong   +11 more
doaj   +1 more source

Controlling the Polarity of the Transient Ferromagnetic-Like State in Ferrimagnets

, 2014
After the application of an ultrashort laser pulse, the antiferromagnetic alignment in rare earth-transition metal alloys can temporarily become ferromagnetic with the rare-earth polarity.
Atxitia, U., Barker, J., Chantrell, R. W., Chubykalo-Fesenko, O.   +3 more
core   +1 more source