Search Results - (Author, Cooperation:J. X. Yang)
-
1Latest Papers from Table of Contents or Articles in PressS. S. Shu ; W. S. Jiang ; T. Whitten ; J. X. Yang ; X. Y. Chen
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-04-20Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Animals ; Aquatic Organisms/*physiology ; *Biodiversity ; *Caves ; China ; Climate Change ; Cyprinidae/physiology ; *Disasters ; *Droughts ; HumansPublished by: -
2Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2013-10-19Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Aged ; Aged, 80 and over ; Animal Diseases/epidemiology ; Animals ; Child, Preschool ; China ; Female ; Humans ; Male ; Neoplasms/epidemiology ; Plant Diseases/statistics & numerical data ; Rural Population/statistics & numerical data/trends ; Transients and Migrants/statistics & numerical data ; Unemployment/statistics & numerical data/trends ; Urban Population/statistics & numerical data/*trends ; Urbanization/*trendsPublished by: -
3Latest Papers from Table of Contents or Articles in PressX. J. Yang ; D. Zhang ; M. Xu ; J. Li
American Association for the Advancement of Science (AAAS)
Published 2013Staff ViewPublication Date: 2013-04-13Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsPublished by: -
4Latest Papers from Table of Contents or Articles in PressA. Lin ; Y. Pu ; W. Qi ; X. Li ; C. Wang ; X. J. Yang
American Association for the Advancement of Science (AAAS)
Published 2016Staff ViewPublication Date: 2016-02-26Publisher: American Association for the Advancement of Science (AAAS)Print ISSN: 0036-8075Electronic ISSN: 1095-9203Topics: BiologyChemistry and PharmacologyComputer ScienceMedicineNatural Sciences in GeneralPhysicsKeywords: Air Pollutants/*standards ; Air Pollution/*prevention & control ; ChinaPublished by: -
5Articles: DFG German National LicensesYang, X. L. ; Yang, J. X. ; Jiang, K. Y. ; Chen, G.
[S.l.] : American Institute of Physics (AIP)
Published 1999Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: A two-phase system of Fe-based nanocrystalline alloys is here investigated. The nanocrystalline Fe69.5Cu0.5Cr4V5Si13B8 alloys, which consist of two magnetic phases: α-FeSi grains and an amorphous matrix, were prepared by annealing the amorphous ribbons. Mössbauer spectroscopy and magnetic measurements at elevated temperatures were carried out. The results show that the exchange coupling interaction exists between grains through the amorphous matrix, and obviously affect the soft magnetic properties of the nanocrystalline alloys. A phenomenological coupling model is applied to estimate the coupling intensity for samples annealed at different temperatures and the data can reasonably explain why the nanocrystalline alloys annealed at 540 °C hold the best soft magnetic properties. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
6Articles: DFG German National LicensesChen, G. ; Yang, X. L. ; Zeng, L. ; Yang, J. X. ; Gong, F. F.
[S.l.] : American Institute of Physics (AIP)
Published 2000Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Giant magnetoimpedance (GMI) was investigated from room temperature up to 823 K in an Fe-based nanocrystalline Fe73.0Cu1.0Nb2.5V1.0Si13.5B9.0 ribbon. With an increment of the measuring temperature (T), GMI shows notable enhancement followed by a declining dependence, yielding a maximum value around 603 K where the relative GMI is nearly four times that at room temperature. The field at the peak of the GMI vs Hdc curve decreases monotonically with T, but around T=603 K there superimposes a trough-shaped variation. The thermal evolution of the soft magnetic property and magnetic anisotropy is suggested to be responsible for the high-temperature GMI features. Discussion on the intergrain exchange magnetic coupling through the amorphous boundaries in the two-phase Fe-based nanocrystalline alloy is also given. © 2000 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesYang, J. X. ; Li, J. ; Musante, C. F. ; Yngvesson, K. S.
Woodbury, NY : American Institute of Physics (AIP)
Published 1995Staff ViewISSN: 1077-3118Source: AIP Digital ArchiveTopics: PhysicsNotes: Microwave mixing and noise measurement techniques have been used to characterize energy relaxation and noise phenomena for the two-dimensional electron gas (2DEG) medium in single AlGaAs/GaAs modulation-doped quantum wells. Mixing experiments at 94 GHz yield the energy relaxation time directly, in good agreement with optical methods previously reported. The noise output power at low microwave frequencies (1.5–3.5 GHz), is shown to have one term due to Nyquist noise at the electron temperature, and a second frequency-dependent term caused by fluctuations in the electron temperature. © 1995 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesStaff View
ISSN: 1095-8649Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: BiologyNotes: A new blind loach of Triplophysa Rendahl 1933 was collected from a subterranean pool in a cave at Wulong County, Chongqing City, China, in November 2002. The new species, named Triplophysa rosa sp. nov., can be distinguished from its congeners by the following unique characters: eyes vestigial; 9 branched dorsal-fin rays; 12 branched pectoral-fin rays; 7 branched pelvic-fin rays; 6 branched anal-fin rays; 7 + 7 branched caudal-fin rays; distal margin of dorsal-fin concave; tip of pelvic-fin surpasses vertical level of anus; caudal-fin deeply forked; whole body scaleless and colourless.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesYOU, X. Z. ; SHAN, B. Z. ; ZHANG, X. M. ; ZHENG, S. J. ; BAI, Z. P. ; YANG, J. X.
Springer
Published 1997Staff ViewISSN: 1572-8838Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyElectrical Engineering, Measurement and Control TechnologyType of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesStaff View
ISSN: 1588-2780Source: Springer Online Journal Archives 1860-2000Topics: Chemistry and PharmacologyEnergy, Environment Protection, Nuclear Power EngineeringNotes: Abstract 57Co was produced with high pure nature iron irradiated by 8.5MeV deuterons. TBP-benzene extraction method and anion-exchange method were used to separate and purify it. The purified57Co was prepared into standard solution of about 30 to 50 μg Co2+/ml carrier concentration and about 0.1 mol/l HCl. The specific activity of the standard solution was measured with 4 π β (ppc)-γ coincidence counting method. The final result was 476.82(1±0.42%)Bq/mg.Type of Medium: Electronic ResourceURL: