Search Results - (Author, Cooperation:S. Y. Wu)
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1Latest Papers from Table of Contents or Articles in PressH P Ma, J G Feng, S Y Wu, R Xu, Y L Huang, N Li and Q Wang
Institute of Physics (IOP)
Published 2018Staff ViewPublication Date: 2018-06-03Publisher: Institute of Physics (IOP)Print ISSN: 1755-1307Electronic ISSN: 1755-1315Topics: GeographyGeosciencesPhysicsPublished by: -
2Latest Papers from Table of Contents or Articles in PressS. Shu ; C. Y. Lin ; H. H. He ; R. M. Witwicki ; D. P. Tabassum ; J. M. Roberts ; M. Janiszewska ; S. J. Huh ; Y. Liang ; J. Ryan ; E. Doherty ; H. Mohammed ; H. Guo ; D. G. Stover ; M. B. Ekram ; G. Peluffo ; J. Brown ; C. D'Santos ; I. E. Krop ; D. Dillon ; M. McKeown ; C. Ott ; J. Qi ; M. Ni ; P. K. Rao ; M. Duarte ; S. Y. Wu ; C. M. Chiang ; L. Anders ; R. A. Young ; E. P. Winer ; A. Letai ; W. T. Barry ; J. S. Carroll ; H. W. Long ; M. Brown ; X. S. Liu ; C. A. Meyer ; J. E. Bradner ; K. Polyak
Nature Publishing Group (NPG)
Published 2016Staff ViewPublication Date: 2016-01-07Publisher: Nature Publishing Group (NPG)Print ISSN: 0028-0836Electronic ISSN: 1476-4687Topics: BiologyChemistry and PharmacologyMedicineNatural Sciences in GeneralPhysicsPublished by: -
3Latest Papers from Table of Contents or Articles in PressChung, V. C. H., Wong, C. H. L., Ching, J. Y. L., Sun, W. Z., Ju, Y. L., Hung, S. S., Lin, W. L., Leung, K. C., Wong, S. Y. S., Wu, J. C. Y.
BMJ Publishing
Published 2018Staff ViewPublication Date: 2018-03-29Publisher: BMJ PublishingElectronic ISSN: 2044-6055Topics: MedicineKeywords: Open access, Complementary medicinePublished by: -
4Latest Papers from Table of Contents or Articles in PressY L Zheng, P J Lin, J L Yu, Y F Lai, Y H Lin, Z C Chen, L J Wu, S Y Cheng and G D Chen
Institute of Physics (IOP)
Published 2018Staff ViewPublication Date: 2018-10-31Publisher: Institute of Physics (IOP)Print ISSN: 1755-1307Electronic ISSN: 1755-1315Topics: GeographyGeosciencesPhysicsPublished by: -
5Latest Papers from Table of Contents or Articles in PressStaff View
Publication Date: 2018-11-08Publisher: Institute of Physics (IOP)Print ISSN: 1757-8981Electronic ISSN: 1757-899XTopics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision MechanicsPublished by: -
6Articles: DFG German National LicensesStaff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Neutron diffraction and ac magnetic susceptibility measurements have been performed to study the magnetic ordering of the Mn spins in polycrystalline Nd0.45Ca0.55MnO3. Three peaks around 260, 90, and 40 K were observed in the temperature dependence of the ac susceptibility. Structural analysis using high-resolution neutron diffraction patterns shows that the peak at 260 K is associated with the charge ordering of the Mn ions. Neutron magnetic diffraction shows that the peak at 90 K originates from the ordering of the Mn spins. Both ferromagnetic and antiferromagnetic couplings between the Mn spins were found. The spin structure in the basal plane consists of tilted ferromagnetic chains (along the [110] direction) aligned antiferromagnetically, whereas the interlayer coupling is ferromagnetic. A spin reorientation occurs below 15 K, which results in a change in the title angle. The Mn spins order at TN(approximate)120 K, and the moment saturated at 30 K at 〈μZ〉=2.29(4)μB. © 1999 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
7Articles: DFG German National LicensesWu, S. Y. ; Kuo, C. M. ; Wang, H. Y. ; Li, W.-H. ; Lee, K. C.
[S.l.] : American Institute of Physics (AIP)
Published 2000Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The crystal structure and magnetic ordering of the Mn spins in polycrystalline NdMnO3 have been investigated by means of neutron diffraction and ac magnetic susceptibility measurements. The compound crystallizes into an orthorhombic symmetry of space group Pbnm. Three peaks were observed in the temperature dependence of the in-phase component of the ac susceptibility, χ′(T). Neutron diffraction measurements show that all three peaks observed in χ′(T) are of magnetic origin, and are associated with the ordering and the reorientation of the Mn spins. Both ferromagnetic and antiferromagnetic couplings between the Mn spins were observed, resulting in a noncollinear magnetic structure. The Mn spins order at Tm(approximate)75 K, and the moment saturates at ∼20 K at 〈μz〉=2.21 μB. © 2000 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
8Articles: DFG German National LicensesWu, S. Y. ; Li, W.-H. ; Lee, K. C. ; Meen, T. H. ; Yang, H. D.
[S.l.] : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The magnetic response of the Tb spins in Pb2Sr2TbCu3O7 to the applied magnetic field have been studied by ac susceptibility measurements. Both the in-phase component χ′ and the out-of-phase component χ″ of ac susceptibility are found to be sensitive to the frequency but not to the strength of the driving field. At high temperatures χ′ exhibits Curie–Weiss behavior, it departs from this behavior as the magnetic correlations between the Tb spins develop, and a cusp which is typical of antiferromagnetic ordering is clearly revealed at lower temperatures. The correlated Tb spins respond "better'' to a driving magnetic field which has a lower frequency. The relative maximum of the dχ′/dT versus T plot matches to the TN determined using neutron diffraction measurements. This relative maximum continues to occur at the same temperature as the frequency of the driving field is varied. It, however, shifts to a lower temperature as a dc external field is applied, indicating the antiferromagnetic coupling between the Tb spins are weaken by the dc field. Moreover, the thermal behavior of χ″ exhibits a well-defined peak around the transition temperature, and a dc field of strength 5 kOe smears the peak. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
9Articles: DFG German National LicensesWu, S. Y. ; Hsieh, W. T. ; Li, W-H. ; Lee, K. C. ; Lynn, J. W. ; Yang, H. D.
[S.l.] : American Institute of Physics (AIP)
Published 1994Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: Neutron diffraction techniques have been used to investigate the magnetic ordering of the Tb ions in polycrystalline Pb2Sr2TbCu3O8. Significant magnetic correlations are found to develop below ∼10 K, and these correlations are two dimensional in nature, representative of the strongly anisotropic magnetic interactions in these layered materials. The correlation length increases with decreasing temperature, and long-range order is observed to develop at TN≈5.5 K. However, the sawtooth Bragg profile for the scattering demonstrates that the long-range order is two dimensional, rather than three dimensional, with a spin configuration where nearest-neighbor spins are antiparallel. The scattering profile can be explained quantitatively by assuming long-range order within the ab plane, with no significant correlations along the c axis to the lowest temperatures measured (1.36 K). Our results suggest that the system is well described by a two-dimensional Ising model. The only other (pure) system where a crossover to three-dimensional behavior is not observed is DyBa2Cu4O8.Type of Medium: Electronic ResourceURL: -
10Articles: DFG German National LicensesLi, W.-H. ; Lin, Y. F. ; Wu, S. Y. ; Hsieh, W. T. ; Lee, K. C. ; Lynn, J. W. ; Lai, C. C. ; Ku, H. C.
[S.l.] : American Institute of Physics (AIP)
Published 1996Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The Cu spins in TlBa2PrCu2O7 order at TN≈370 K with a spin structure that is collinear and is characterized by the {1/21/21} wave vector, where the nearest neighbor spins are aligned antiparallel along all three crystallographic directions. If 50% of the Ba atoms are randomly replaced by the smaller Sr atoms to form Tl(BaSr)PrCu2O7, the TN of the Cu spins reduces to 350 K but the magnetic structure that forms below TN is the same. However, at T≈20 K the Cu spins undergo a change in structure, and the spin arrangement is then characterized by the {1/21/21/2} wave vector below T≈12 K. The ground state spin structure of the Cu ions in Tl(BaSr)PrCu2O7 is hence noncollinear, where the spin directions of the nearest neighbor Cu ions in the ab plane remain collinear and antiparallel while along the c axis they are orthogonal. These results demonstrate that the atoms in the BaO layers are also actively participating in the coupling between the Cu ions. © 1996 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
11Articles: DFG German National LicensesWu, S. Y. ; Chang, Y. C. ; Lee, K. C. ; Li, W.-H.
[S.l.] : American Institute of Physics (AIP)
Published 1998Staff ViewISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The magnetic responses of vacuum annealed polycrystalline Pb2Sr2PrCu3O8 to a magnetic field have been studied by ac magnetic susceptibility measurements, where both the in-phase component χ′ and the out-of-phase component χ″ were measured. Diamagnetic responses in χ′(T) below 60 K were clearly seen, showing the occurrence of superconductivity, but it is filamentary. This filamentary superconductivity was also evident in the χ″(T). Under an applied dc field, both the χ′(T) and χ″(T) behave as what are expected for a superconducting system. At lower temperatures, a well-defined peak associated with the Pr spin ordering is also clearly revealed at 5 K. Correspondingly, an anomaly is also seen in the specific heat data. © 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
12Articles: DFG German National LicensesStaff View
ISSN: 1089-7550Source: AIP Digital ArchiveTopics: PhysicsNotes: The magnetic ordering of the Mn spins in polycrystalline Nd0.62Ca0.38MnO3 has been investigated by means of neutron diffraction and ac magnetic susceptibility measurements. Three peaks around 230, 90, and 40 K were observed in the temperature dependence of the in-phase component of the ac susceptibility, χ′(T). Neutron diffraction measurements show that the peak at 90 K is associated with the ordering of the Mn spins, and that at 40 K is due to the reorientation of the Mn spins. Both ferromagnetic and antiferromagnetic coupling between the Mn spins were observed. The spins order at TN(approximate)130 K, with a spin structure consisting of ferromagnetically coupled, tilted antiferromagnetic sheets. No evidence was found from the neutron diffraction data to indicate that the peak around 230 K in χ′(T) is of magnetic origin, which suggests that it is associated with charge ordering. © 1998 American Institute of Physics.Type of Medium: Electronic ResourceURL: -
13Articles: DFG German National LicensesStaff View
ISSN: 1467-999XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: EconomicsNotes: Recently, economists have centered their explanation of the demand for money balances on the transactions motive. The roles of precautionary and speculative motives remain ambiguous. The purpose of this paper is to fill this void. We develop a static model of the individual firm's demand for money in which prices and the interest rate are assumed to be random variables. In this model, the entrepreneur must decide his money holdings ex ante, and both capital and labor inputs are determined ex post. The demand for money corresponding to the various motives is a consequence of analyzing the ex ante profit function. Implications for monetary policy are derived from this analysis.Type of Medium: Electronic ResourceURL: -
14Articles: DFG German National LicensesStaff View
ISSN: 1467-999XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: EconomicsType of Medium: Electronic ResourceURL: -
15Articles: DFG German National LicensesStaff View
ISSN: 1467-999XSource: Blackwell Publishing Journal Backfiles 1879-2005Topics: EconomicsType of Medium: Electronic ResourceURL: -
16Articles: DFG German National LicensesBREWER, M. SUSAN ; McKEITH, FLOYD ; MARTIN, SCOTT E. ; DALLMIER, ANTHONY W. ; WU, S. Y.
Oxford, UK : Blackwell Publishing Ltd
Published 1992Staff ViewISSN: 1745-4557Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Process Engineering, Biotechnology, Nutrition TechnologyNotes: Beef bologna, containing 0, 1, 2, or 3% sodium lactate (SL), was vacuum packaged and stored at 4C for 0, 2, 4, 6, 8, and 10 weeks. Color was assessed using L*, a*, b* measures, and fade (% reflectance 570 nm/650 nm). A trained sensory panel evaluated flavor and color intensity. Total aerobic plate counts (TPC), pH, and TBA values were determined. Addition of SL had no effect on initial pH. Pink color was correlated with a* values, fade, and TPC (r = 0.74, -0.70 and -0.54, respectively; p 〈 0.05). Salty-flavor intensity was highest for bologna containing 3% SL and lowest in controls. Beefy flavor was inversely correlated with TPC (r = -0.45, p 〈 0.05). Sour-flavor scores were inversely correlated with pH (r × -0.51) and directly with TPC (r = 0.33, p 〈 0.05). After 10 weeks TPC for control product was highest, while that for bologna containing 3% SL was lowest.Type of Medium: Electronic ResourceURL: -
17Articles: DFG German National LicensesStaff View
ISSN: 1750-3841Source: Blackwell Publishing Journal Backfiles 1879-2005Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, NutritionProcess Engineering, Biotechnology, Nutrition TechnologyNotes: Soy protein isolate antioxidant (SPIA) was separated from soy protein, fractionated, and purified. SPIA (300 or 900 ppm) was added to a ground beef model system; oxidation was initiated by adding Fe+2/Fe+3. Sealed vials were stored at 4°C for 24 hr. Oxidation products were assessed using the 2-thiobarbituric acid (TBA) test, sensory analysis, gas chromatographic separation, and mass spectrometric identification of headspace volatiles. SPIA (900 ppm) was also added to a beef microsomal protein/linoleic acid model system. Beef containing 900 ppm SPIA had lower TBA numbers, less rancid odor, hexanal, and total volatiles after 16 and 24 hr than did samples containing 300 ppm SPIA and controls.Type of Medium: Electronic ResourceURL: -
18Articles: DFG German National LicensesStaff View
ISSN: 0095-2583Topics: EconomicsURL: -
19Articles: DFG German National LicensesLee, Y.-H.W. ; Chen, B.-F. ; Wu, S.-Y. ; Leu, W.-M. ; Lin, J.-J. ; Chen, C.W. ; Lo, S.J.
Amsterdam : ElsevierStaff ViewISSN: 0378-1119Keywords: RNA analysis ; Recombinant DNA ; antibody affinity chromatography ; apotyrosinase ; complementation test ; copper-transfer protein ; gene expression ; in vitro activation ; melanin geneSource: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: BiologyType of Medium: Electronic ResourceURL: -
20Articles: DFG German National LicensesStaff View
ISSN: 0038-1101Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002Topics: Electrical Engineering, Measurement and Control TechnologyPhysicsType of Medium: Electronic ResourceURL: