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  • Vietnam  (6)
  • Superfluidity and superconductivity  (5)
  • Geomagnetism, Rock Magnetism and Palaeomagnetism  (3)
  • 2015-2019  (14)
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  • 1
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    Unknown
    A new genus from Vietnam (Hymenoptera, Braconidae, Opiinae), and the description of two new species (2018)
    In:  Various articles (1313-2970) vol.66 (2018) p.1
    Details
    Publication Date: 2019-02-27
    Description: Two aberrant species of Opiinae are described and illustrated from Vietnam, of which one is included into a new genus (Canalopius gen. n.; type species: C. periscopus sp. n.). The other species, Xynobius chrysops sp. n. belongs to an aberrant group of species near X. maculipennis (Enderlein, 1912).
    Keywords: Braconidae ; Opiinae ; Canalopius ; Xynobius ; new genus ; new species ; Oriental ; Vietnam
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 2
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    Unknown
    Review of Stantonia Ashmead (Hymenoptera, Braconidae, Orgilinae) from Vietnam, China, Japan, and Russia, with descriptions of six new species (2017)
    In:  Various articles (1313-2970) vol.723 (2017) p.61
    Details
    Publication Date: 2018-02-22
    Description: The genus Stantonia Ashmead, 1904 (Hymenoptera, Braconidae, Orgilinae) is reviewed for Vietnam, China, Japan, and Russia. Six new species of the genus Stantonia are described and illustrated: Stantonia brevicaudata van Achterberg, sp. n., S. dickyyui van Achterberg & Long, sp. n., S. granulata Long & van Achterberg, sp. n., S. robustifemur van Achterberg & Long, sp. n., S. stilpnosoma Long & van Achterberg, sp. n., and S. vietnamica van Achterberg, sp. n. A new subgenus (Planitonia subg. n.: type species Stantonia robustifemur van Achterberg & Long, sp. n.) is proposed for the species with a flat clypeus and face, and reduced vein r-m of the fore wing. Three species are newly recorded from Vietnam: Stantonia gracilis van Achterberg, 1987, S. sumatrana Enderlein, 1908, and S. tianmushana Chen, He & Ma, 2004. A key to species of Stantonia from Vietnam, China, Russia, and Japan is provided.
    Keywords: Braconidae ; China ; Japan ; Russia ; key ; Stantonia ; new species ; Orgilinae ; Vietnam
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 3
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    Unknown
    Review of the genus Craspedolcus Enderlein sensu lato in China, with the description of a new genus and four new species (Hymenoptera, Braconidae, Braconinae) (2017)
    In:  Various articles (1313-2970) vol.647 (2017) p.37
    Details
    Publication Date: 2018-02-08
    Description: A new genus is split off the genus Craspedolcus Enderlein, 1920 (Hymenoptera, Braconidae, Braconinae): Maculibracon gen. n. with type species Maculibracon abruptus sp. n. The genus Craspedolcus Enderlein sensu stricto is redefined, a key to both genera and to their species in China, Thailand and Vietnam is included. Craspedolcus obscuriventris Enderlein, 1920, (syn. n.) is a new synonym of C. vagatus (Smith, 1858), as Ipobracon maculicosta Enderlein, 1920 and Iphiaulax bhotanensis Cameron, 1907 of Maculibracon simlaensis (Cameron, 1899), comb. n. The genus Craspedolcus is recorded from China for the first time with two species: Craspedolcus fraternus Enderlein, 1920, and C. politus sp. n. The genus Maculibracon is represented by three species in China: M. simlaensis (Cameron, 1899), comb. n. (also present in Vietnam), M. hei sp. n. and M. luteonervis sp. n. and a fourth species is described from Thailand: M. abruptus sp. n. Hybogaster zebripterae Wang & Chen, 2008, from China (Fujian) is transferred to Iphiaulax Foerster, 1863, (comb. n.) and the following names are new combinations in Maculibracon gen. n.: Bracon lepcha Cameron, 1899; B. phaedo Cameron, 1899; B. simlaensis Cameron, 1899; Iphiaulax bhotanensis Cameron, 1907; I. laertius Cameron, 1903; I. leptopterus Cameron, 1903; I. lineaticarinatus Cameron, 1907; Ipobracon lissotomus Roman, 1914; I. maculicosta Enderlein, 1920 and I. pallidicornis Roman, 1914. Craspedolcus montezuma (Cameron, 1887) is provisionally transferred to the genus Digonogastra Viereck, 1912.
    Keywords: Hymenoptera ; Braconidae ; Braconinae ; Craspedolcus ; Maculibracon ; new genus ; new species ; Oriental ; China ; Thailand ; Vietnam
    Repository Name: National Museum of Natural History, Netherlands
    Type: Article / Letter to the editor
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  • 4
    facet.materialart.
    Unknown
    Review of Stantonia Ashmead (Hymenoptera, Braconidae, Orgilinae) from Vietnam, China, Japan, and Russia, with descriptions of six new species (2017)
    In:  ZooKeys vol. 723, pp. 61-119
    Details
    Publication Date: 2024-01-12
    Description: The genus Stantonia Ashmead, 1904 (Hymenoptera, Braconidae, Orgilinae) is reviewed for Vietnam, China, Japan, and Russia. Six new species of the genus Stantonia are described and illustrated: Stantonia brevicaudata van Achterberg, sp. n., S. dickyyui van Achterberg & Long, sp. n., S. granulata Long & van Achterberg, sp. n., S. robustifemur van Achterberg & Long, sp. n., S. stilpnosoma Long & van Achterberg, sp. n., and S. vietnamica van Achterberg, sp. n. A new subgenus (Planitonia subg. n.: type species Stantonia robustifemur van Achterberg & Long, sp. n.) is proposed for the species with a flat clypeus and face, and reduced vein r-m of the fore wing. Three species are newly recorded from Vietnam: Stantonia gracilis van Achterberg, 1987, S. sumatrana Enderlein, 1908, and S. tianmushana Chen, He & Ma, 2004. A key to species of Stantonia from Vietnam, China, Russia, and Japan is provided.
    Keywords: Braconidae ; China ; Japan ; Russia ; key ; Stantonia ; new species ; Orgilinae ; Vietnam
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 5
    facet.materialart.
    Unknown
    A new genus from Vietnam (Hymenoptera, Braconidae, Opiinae), and the description of two new species (2018)
    In:  Journal of Hymenoptera Research vol. 66, pp. 1-13
    Details
    Publication Date: 2024-01-12
    Description: Two aberrant species of Opiinae are described and illustrated from Vietnam, of which one is included into a new genus (Canalopius gen. n.; type species: C. periscopus sp. n.). The other species, Xynobius chrysops sp. n. belongs to an aberrant group of species near X. maculipennis (Enderlein, 1912).
    Keywords: Braconidae ; Opiinae ; Canalopius ; Xynobius ; new genus ; new species ; Oriental ; Vietnam
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 6
    facet.materialart.
    Unknown
    Review of the genus Craspedolcus Enderlein sensu lato in China, with the description of a new genus and four new species (Hymenoptera, Braconidae, Braconinae) (2017)
    In:  ZooKeys vol. 647, pp. 37-65
    Details
    Publication Date: 2024-01-12
    Description: A new genus is split off the genus Craspedolcus Enderlein, 1920 (Hymenoptera, Braconidae, Braconinae): Maculibracon gen. n. with type species Maculibracon abruptus sp. n. The genus Craspedolcus Enderlein sensu stricto is redefined, a key to both genera and to their species in China, Thailand and Vietnam is included. Craspedolcus obscuriventris Enderlein, 1920, (syn. n.) is a new synonym of C. vagatus (Smith, 1858), as Ipobracon maculicosta Enderlein, 1920 and Iphiaulax bhotanensis Cameron, 1907 of Maculibracon simlaensis (Cameron, 1899), comb. n. The genus Craspedolcus is recorded from China for the first time with two species: Craspedolcus fraternus Enderlein, 1920, and C. politus sp. n. The genus Maculibracon is represented by three species in China: M. simlaensis (Cameron, 1899), comb. n. (also present in Vietnam), M. hei sp. n. and M. luteonervis sp. n. and a fourth species is described from Thailand: M. abruptus sp. n. Hybogaster zebripterae Wang & Chen, 2008, from China (Fujian) is transferred to Iphiaulax Foerster, 1863, (comb. n.) and the following names are new combinations in Maculibracon gen. n.: Bracon lepcha Cameron, 1899; B. phaedo Cameron, 1899; B. simlaensis Cameron, 1899; Iphiaulax bhotanensis Cameron, 1907; I. laertius Cameron, 1903; I. leptopterus Cameron, 1903; I. lineaticarinatus Cameron, 1907; Ipobracon lissotomus Roman, 1914; I. maculicosta Enderlein, 1920 and I. pallidicornis Roman, 1914. Craspedolcus montezuma (Cameron, 1887) is provisionally transferred to the genus Digonogastra Viereck, 1912.
    Keywords: Hymenoptera ; Braconidae ; Braconinae ; Craspedolcus ; Maculibracon ; new genus ; new species ; Oriental ; China ; Thailand ; Vietnam
    Repository Name: National Museum of Natural History, Netherlands
    Type: info:eu-repo/semantics/article
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  • 7
    facet.materialart.
    Unknown
    Evidence for two distinct superconducting phases in EuBiS_{2}F under pressure (2015)
    American Physical Society (APS)
    Details
    Publication Date: 2015-06-19
    Description: Author(s): C. Y. Guo, Y. Chen, M. Smidman, S. A. Chen, W. B. Jiang, H. F. Zhai, Y. F. Wang, G. H. Cao, J. M. Chen, X. Lu, and H. Q. Yuan We present a pressure study of the electrical resistivity, ac magnetic susceptibility, and powder x-ray diffraction (XRD) of the recently discovered BiS 2 -based superconductor EuBiS 2 F . At ambient pressure, EuBiS 2 F shows an anomaly in the resistivity at around T 0 ≈ 280 K and a superconducting transition... [Phys. Rev. B 91, 214512] Published Thu Jun 18, 2015
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 8
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    Unknown
    Numerical simulation of seismo-electromagnetic fields associated with a fault in a porous medium (2016)
    Oxford University Press
    Details
    Publication Date: 2016-05-14
    Description: In this work, we carry out numerical simulations of the seismo-electromagnetic fields associated with a fault in a porous medium by considering the electrokinetic effect. In addition to porous materials, the adopted layered models comprise solid materials in which the electrokinetic effect is inoperative. First, sensitivity study is performed for the evanescent and direct radiation electromagnetic (EM) waves generated by a double couple point source embedded in a porous half-space below a solid half-space. Results suggest that both the evanescent and direct radiation EM waves are sensitive to some medium properties, for example porosity, salinity, fluid viscosity, and conductivity of solid layer. Then, adopting an eight-layer half-space model, we simulate the seismic and EM wavefields generated by the rupture process of a finite fault. It is shown that the electrokinetic effect is able to generate observable corupture EM signals, but the observability depends on some factors such as the epicentral distance, properties of the medium where the fault is located, and local activity levels of EM noise. Time synchronization coseismic EM signals are recorded when the receiver is close to the ground water level but located in a solid medium. In addition to the post-seismic electric field, our results also show the post-seismic magnetic field which has not been identified in previous simulation studies on the electrokinetic effect. The generation of the post-seismic magnetic field probably requires a sufficiently strong medium heterogeneity or fluid-pressure gradient.
    Keywords: Geomagnetism, Rock Magnetism and Palaeomagnetism
    Print ISSN: 0956-540X
    Electronic ISSN: 1365-246X
    Topics: Geosciences
    Published by Oxford University Press on behalf of The Deutsche Geophysikalische Gesellschaft (DGG) and the Royal Astronomical Society (RAS).
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  • 9
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    Unknown
    Nodeless superconductivity in noncentrosymmetric PbTaSe_{2} single crystals (2016)
    American Physical Society (APS)
    Details
    Publication Date: 2016-02-09
    Description: Author(s): G. M. Pang, M. Smidman, L. X. Zhao, Y. F. Wang, Z. F. Weng, L. Q. Che, Y. Chen, X. Lu, G. F. Chen, and H. Q. Yuan Noncentrosymmetric superconductors such as PbTaSe 2 have been the focus of intensive study due to their unconventional properties and they have also recently been proposed as candidates for topological superconductivity and Majorana fermions. To test this, it is important to characterize the superconducting order parameter. The authors here report precise temperature-dependent measurements of the London penetration depth of PbTaSe 2 . The results indicate fully gapped s -wave BCS-type superconductivity, which is rather puzzling. This compound is known to have a topologically nontrivial band structure and a strong antisymmetric spin-orbit coupling, which, in 2D superconductors, is expected to produce an order parameter with mixed spin singlet and spin triplet components. [Phys. Rev. B 93, 060506(R)] Published Fri Feb 05, 2016
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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  • 10
    facet.materialart.
    Unknown
    Superconductivity and multiple pressure-induced phases in BaPt_{2} As_{2} (2016)
    American Physical Society (APS)
    Details
    Publication Date: 2016-11-17
    Description: Author(s): C. Y. Guo, W. B. Jiang, M. Smidman, F. Han, C. D. Malliakas, B. Shen, Y. F. Wang, Y. Chen, X. Lu, M. G. Kanatzidis, and H. Q. Yuan The recently discovered BaPt 2 As 2 shows a structural distortion at around 275 K, followed by the emergence of superconductivity at lower temperatures. Here we identify the presence of charge-density-wave order at room temperature and ambient pressure using single-crystal x-ray diffraction, with both … [Phys. Rev. B 94, 184506] Published Wed Nov 16, 2016
    Keywords: Superfluidity and superconductivity
    Print ISSN: 1098-0121
    Electronic ISSN: 1095-3795
    Topics: Physics
    Published by American Physical Society (APS)
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