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  1. Article: Retention Model of TaO/HfO

    Lin, Yu-De / Chen, Pang-Shiu / Lee, Heng-Yuan / Chen, Yu-Sheng / Rahaman, Sk Ziaur / Tsai, Kan-Hsueh / Hsu, Chien-Hua / Chen, Wei-Su / Wang, Pei-Hua / King, Ya-Chin / Lin, Chrong Jung

    Nanoscale research letters

    2017  Volume 12, Issue 1, Page(s) 407

    Abstract: A retention behavior model for self-rectifying TaO/HfO ...

    Abstract A retention behavior model for self-rectifying TaO/HfO
    Language English
    Publishing date 2017-06-13
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2253244-4
    ISSN 1556-276X ; 1931-7573
    ISSN (online) 1556-276X
    ISSN 1931-7573
    DOI 10.1186/s11671-017-2179-5
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Reliable Multivalued Conductance States in TaO

    Lee, Myoung-Jae / Park, Gyeong-Su / Seo, David H / Kwon, Sung Min / Lee, Hyeon-Jun / Kim, June-Seo / Jung, MinKyung / You, Chun-Yeol / Lee, Hyangsook / Kim, Hee-Goo / Pang, Su-Been / Seo, Sunae / Hwang, Hyunsang / Park, Sung Kyu

    ACS applied materials & interfaces

    2018  Volume 10, Issue 35, Page(s) 29757–29765

    Abstract: Transition metal oxide-based memristors have widely been proposed for applications toward artificial synapses. In general, memristors have two or more electrically switchable stable resistance states that device researchers see as an analogue to the ion ... ...

    Abstract Transition metal oxide-based memristors have widely been proposed for applications toward artificial synapses. In general, memristors have two or more electrically switchable stable resistance states that device researchers see as an analogue to the ion channels found in biological synapses. The mechanism behind resistive switching in metal oxides has been divided into electrochemical metallization models and valence change models. The stability of the resistance states in the memristor vary widely depending on: oxide material, electrode material, deposition conditions, film thickness, and programming conditions. So far, it has been extremely challenging to obtain reliable memristors with more than two stable multivalued states along with endurances greater than ∼1000 cycles for each of those states. Using an oxygen plasma-assisted sputter deposition method of noble metal electrodes, we found that the metal-oxide interface could be deposited with substantially lower interface roughness observable at the nanometer scale. This markedly improved device reliability and function, allowing for a demonstration of memristors with four completely distinct levels from ∼6 × 10
    Language English
    Publishing date 2018-08-02
    Publishing country United States
    Document type Journal Article
    ISSN 1944-8252
    ISSN (online) 1944-8252
    DOI 10.1021/acsami.8b09046
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: Metabolic Insight Into the Neuroprotective Effect of Tao-He-Cheng-Qi (THCQ) Decoction on ICH Rats Using Untargeted Metabolomics.

    Yang, Rui-Pei / Cai, Da-Ke / Chen, Yu-Xing / Gang, Hai-Ning / Wei, Mei / Zhu, De-Quan / Li, Su-Mei / Yang, Jiu-Mei / Luo, Si-Ni / Bi, Xiao-Li / Sun, Dong-Mei

    Frontiers in pharmacology

    2021  Volume 12, Page(s) 636457

    Abstract: Tao-He-Cheng-Qi decoction (THCQ) is an effective traditional Chinese medicine used to treat ...

    Abstract Tao-He-Cheng-Qi decoction (THCQ) is an effective traditional Chinese medicine used to treat intracerebral hemorrhage (ICH). This study was performed to investigate the possible neuroprotective effect of THCQ decoction on secondary brain damage in rats with intracerebral hemorrhage and to elucidate the potential mechanism based on a metabolomics approach. Sprague-Dawley (SD) rats were randomly divided into five groups: the sham group, collagenase-induced ICH model group, THCQ low-dose (THCQ-L)-treated group, THCQ moderate-dose (THCQ-M)-treated group and THCQ high-dose (THCQ-H)-treated group. Following 3 days of treatment, behavioral changes and histopathological lesions in the brain were estimated. Untargeted metabolomics analysis with multivariate statistics was performed by using ultrahigh-performance liquid chromatography-mass spectrometry (UPLC-Q-Exactive Orbitrap MS). THCQ treatment at two dosages (5.64 and 11.27 g/kg·d) remarkably improved behavior (
    Language English
    Publishing date 2021-05-03
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2587355-6
    ISSN 1663-9812
    ISSN 1663-9812
    DOI 10.3389/fphar.2021.636457
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Metabolic Insight Into the Neuroprotective Effect of Tao-He-Cheng-Qi (THCQ) Decoction on ICH Rats Using Untargeted Metabolomics

    Rui-Pei Yang / Da-Ke Cai / Yu-Xing Chen / Hai-Ning Gang / Mei Wei / De-Quan Zhu / Su-Mei Li / Jiu-Mei Yang / Si-Ni Luo / Xiao-Li Bi / Dong-Mei Sun

    Frontiers in Pharmacology, Vol

    2021  Volume 12

    Abstract: Tao-He-Cheng-Qi decoction (THCQ) is an effective traditional Chinese medicine used to treat ...

    Abstract Tao-He-Cheng-Qi decoction (THCQ) is an effective traditional Chinese medicine used to treat intracerebral hemorrhage (ICH). This study was performed to investigate the possible neuroprotective effect of THCQ decoction on secondary brain damage in rats with intracerebral hemorrhage and to elucidate the potential mechanism based on a metabolomics approach. Sprague-Dawley (SD) rats were randomly divided into five groups: the sham group, collagenase-induced ICH model group, THCQ low-dose (THCQ-L)-treated group, THCQ moderate-dose (THCQ-M)-treated group and THCQ high-dose (THCQ-H)-treated group. Following 3 days of treatment, behavioral changes and histopathological lesions in the brain were estimated. Untargeted metabolomics analysis with multivariate statistics was performed by using ultrahigh-performance liquid chromatography–mass spectrometry (UPLC-Q-Exactive Orbitrap MS). THCQ treatment at two dosages (5.64 and 11.27 g/kg·d) remarkably improved behavior (p < 0.05), brain water content (BMC) and hemorheology (p < 0.05) and improved brain nerve tissue pathology and inflammatory infiltration in ICH rats. Moreover, a metabolomic analysis demonstrated that the serum metabolic profiles of ICH patients were significantly different between the sham group and the ICH-induced model group. Twenty-seven biomarkers were identified that potentially predict the clinical benefits of THCQ decoction. Of these, 4 biomarkers were found to be THCQ-H group-specific, while others were shared between two clusters. These metabolites are mainly involved in amino acid metabolism and glutamate-mediated cell excitotoxicity, lipid metabolism-mediated oxidative stress, and mitochondrial dysfunction caused by energy metabolism disorders. In addition, a correlation analysis showed that the behavioral scores, brain water content and hemorheology were correlated with levels of serum metabolites derived from amino acid and lipid metabolism. In conclusion, the results indicate that THCQ decoction significantly attenuates ICH-induced secondary ...
    Keywords intracerebral hemorrhage ; traditional Chinese medicine ; Tao-He-Cheng-Qi decoction ; metabolomics ; secondary brain injury ; Therapeutics. Pharmacology ; RM1-950
    Subject code 616
    Language English
    Publishing date 2021-05-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Article: Hydrothermal growth of highly oriented single crystalline Ta₂O₅ nanorod arrays and their conversion to Ta₃N₅ for efficient solar driven water splitting

    Su, Zixue / Wang, Lei / Grigorescu, Sabina / Lee, Kiyoung / Schmuki, Patrik

    Chemical communications. 2014 Nov. 13, v. 50, no. 98

    2014  

    Abstract: We grow vertically aligned single crystalline Ta₂O₅ nanorod arrays that can be converted to Ta₃N₅ ...

    Abstract We grow vertically aligned single crystalline Ta₂O₅ nanorod arrays that can be converted to Ta₃N₅ nanorod arrays by nitridation. Combined with cobalt phosphate (Co-Pi) as a co-catalyst, such Ta₃N₅ nanorod photoanodes can yield photocurrent densities of ∼3.6 mA cm⁻² at 1.23 VRHE and ∼8.2 mA cm⁻² at 1.59 VRHE under AM 1.5G (100 mW cm⁻²) irradiation.
    Keywords catalysts ; chemical reactions ; cobalt ; electric current ; irradiation ; nanorods ; phosphates ; water
    Language English
    Dates of publication 2014-1113
    Size p. 15561-15564.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 1472881-3
    ISSN 1364-548X ; 1359-7345 ; 0009-241X
    ISSN (online) 1364-548X
    ISSN 1359-7345 ; 0009-241X
    DOI 10.1039/c4cc05673f
    Database NAL-Catalogue (AGRICOLA)

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  6. Article: Total catalytic oxidation of toluene using Pd impregnated on hierarchically porous Nb₂O₅ and Ta₂O₅ supports

    Rooke, J.C / Barakat, T / Siffert, S / Su, B.-L

    Catalysis today. 2012 Sept. 30, v. 192, no. 1

    2012  

    Abstract: A series of supported Pd catalysts were elaborated using hierarchically porous Nb₂O₅ and Ta₂O₅ ...

    Abstract A series of supported Pd catalysts were elaborated using hierarchically porous Nb₂O₅ and Ta₂O₅ materials, synthesised with and without a non-ionic surfactant. The deposition of Pd nanoparticles was achieved using the wet impregnation method on calcined supports. The catalytic systems were pre-reduced in hydrogen and investigated for their efficiency in the total oxidation of toluene and found to have increased activity in comparison to a series of reference catalysts based on hierarchically porous TiO₂ and ZrO₂, with minimal benzene formation. Results have shown how activities are dependent on the support material, synthesis conditions and chemical composition.
    Keywords benzene ; catalysts ; catalytic activity ; chemical composition ; hydrogen ; nanoparticles ; oxidation ; surfactants ; toluene
    Language English
    Dates of publication 2012-0930
    Size p. 183-188.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2012626-8
    ISSN 0920-5861
    ISSN 0920-5861
    DOI 10.1016/j.cattod.2011.10.011
    Database NAL-Catalogue (AGRICOLA)

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  7. Book ; Online: Late Miocene Xianfeng palaeoflora and palaeoclimate of Yunnan Province, southwestern China, supplementary data to: Xing, Yao-Wu; Utescher, Torsten; Jacques, Frédéric M B; Su, Tao; Liu, Yu-Sheng Christopher; Huang, Yong-Jiang; Zhou, Zhekun (2012): Palaeoclimatic estimation reveals a weak winter monsoon in southwestern China during the late Miocene: Evidence from plant macrofossils. Palaeogeography, Palaeoclimatology, Palaeoecology, 358-360, 19-26

    Xing, Yao-Wu / Huang, Yong-Jiang / Jacques, Frédéric M B / Liu, Yu-Sheng Christopher / Su, Tao / Utescher, Torsten / Zhou, Zhekun

    2012  

    Abstract: The late Miocene Xianfeng flora of Yunnan Province, southwestern China, was chosen to reconstruct the paleoclimate and the intensity of the Asian monsoon. Three available quantitative climate reconstruction methods from fossil plants, i.e. Leaf Margin ... ...

    Abstract The late Miocene Xianfeng flora of Yunnan Province, southwestern China, was chosen to reconstruct the paleoclimate and the intensity of the Asian monsoon. Three available quantitative climate reconstruction methods from fossil plants, i.e. Leaf Margin Analysis (LMA), the Climate Leaf Analysis Multivariate Program (CLAMP), and the Coexistence Approach (CA) were used in this study. MATs (mean annual temperatures) resulting from these three approaches (i.e., LMA: 17.2 ± 2.38 °C; CLAMP: 15.43 ± 1.25 °C; CA: 17.2-21.7 °C) appear to have been higher than the present (14.9 °C), suggesting a much warmer climate in the late Miocene. Both the growing season precipitation (GSP) from CLAMP (1908.7 ± 217.7 mm) and mean annual precipitation (MAP) from CA (1206.0-1613.0 mm) estimates are higher than modern values (1003.2 mm (GSP) and 1038 mm (MAP) respectively) indicating a more humid climate during the late Miocene. By comparing these with climates reconstructed from neighboring late Miocene floras, we conclude that the general late Miocene climate appears warmer and more humid than present conditions in southwestern China. Furthermore, the evident differences in estimated monthly temperatures between the summer and winter, and precipitations between the humid and dry seasons indicate the existence of seasonality, though not as strong as that of today. Difference in precipitation of dry season indicates a marked strengthening in the winter monsoon since the late Miocene. A new monsoon intensity index has also been defined based on precipitation seasonality to investigate the intensity of the Asian monsoon.
    Language English
    Dates of publication 2012-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1016/j.palaeo.2012.07.011
    DOI 10.1594/PANGAEA.775073
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  8. Book ; Online: Late Miocene palaeoflora and palaeoclimate of Lincang (China), supplementary data to: Jacques, Fr?d?ric M B; Guo, Shuang-Xing; Su, Tao; Xing, Yao-Wu; Huang, Yong-Jiang; Liu, Yu-Sheng Christopher; Ferguson, David-Kay; Zhou, Zhekun (2011): Quantitative reconstruction of the Late Miocene monsoon climates of southwest China: A case study of the Lincang flora from Yunnan Province. Palaeogeography, Palaeoclimatology, Palaeoecology, 304(3-4), 318-327

    Jacques, Fr?d?ric M B / Ferguson, David-Kay / Guo, Shuang-Xing / Huang, Yong-Jiang / Liu, Yu-Sheng Christopher / Su, Tao / Xing, Yao-Wu / Zhou, Zhekun

    2011  

    Abstract: The Miocene Lincang leaf assemblage is used in this paper as proxy data to reconstruct the palaeoclimate of southwestern Yunnan (SW China) and the evolution of monsoon intensity. Three quantitative methods were chosen for this reconstruction, i.e. Leaf ... ...

    Abstract The Miocene Lincang leaf assemblage is used in this paper as proxy data to reconstruct the palaeoclimate of southwestern Yunnan (SW China) and the evolution of monsoon intensity. Three quantitative methods were chosen for this reconstruction, i.e. Leaf Margin Analysis (LMA), Climate Leaf Analysis Multivariate Program (CLAMP), and the Coexistence Approach (CA). These methods, however, yield inconsistent results, particularly for the precipitation, as also shown in European and other East Asian Cenozoic floras. The wide range of the reconstructed climatic parameters includes the Mean Annual Temperature (MAT) of 18.5-24.7 ?C and the Mean Annual Precipitation (MAP) of 1213-3711 mm. Compared with the modern Lincang climate (MAT, 17.3 ?C; MAP, 1178.7 mm), the Miocene climate is slightly warmer, wetter and has a higher temperature seasonality. A detailed comparison on the palaeoclimatic variables with the coeval Late Miocene Xiaolongtan flora from the eastern part of Yunnan allows us to investigate the development and interactions of both South Asian and East Asian monsoons during the Late Miocene in southwest China, now under strong influence of these monsoon systems. Our results suggest that the monsoon climate has already been established in southwest Yunnan during the Late Miocene. Furthermore, our results support that both Southeast Asian and East Asian monsoons co-occurred in Yunnan during the Late Miocene.
    Language English
    Dates of publication 2011-9999
    Size Online-Ressource
    Publisher PANGAEA - Data Publisher for Earth & Environmental Science
    Publishing place Bremen/Bremerhaven
    Document type Book ; Online
    Note This dataset is supplement to doi:10.1016/j.palaeo.2010.04.014
    DOI 10.1594/PANGAEA.758946
    Database Library catalogue of the German National Library of Science and Technology (TIB), Hannover

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  9. Book ; Thesis: Post-translational regulation of invertases

    Su, Tao

    molecular mechanism and impact on plant development in Arabidopsis thaliana

    2014  

    Author's details presented by Tao Su
    Language English
    Size 100 Bl. : Ill., graph. Darst.
    Publishing country Germany
    Document type Book ; Thesis
    Thesis / German Habilitation thesis Heidelberg, Univ., Diss., 2014
    Note Zsfassung in dt. Sprache
    HBZ-ID HT018359524
    Database Catalogue ZB MED Medicine, Health

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  10. Article ; Online: Efficient method for modeling large-scale arrays of optical nanoresonators based on the coupling theory of quasinormal mode.

    Tao, Qiyong / Su, Yuhang / Tao, Can / Zhong, Ying / Liu, Haitao

    Optics express

    2024  Volume 32, Issue 5, Page(s) 7171–7184

    Abstract: We propose an efficient method for calculating the electromagnetic field of a large-scale array of optical nanoresonators based on the coupling theory of quasinormal mode (QNM). In this method, two approaches of the scattered-field reconstruction and ... ...

    Abstract We propose an efficient method for calculating the electromagnetic field of a large-scale array of optical nanoresonators based on the coupling theory of quasinormal mode (QNM). In this method, two approaches of the scattered-field reconstruction and stationary-phase-principle calculated plane-wave expansion are developed to obtain the regularized QNM (RQNM) in different regions. This accurate and efficient calculation of RQNM resolves the far-field divergence issue of QNMs in the QNM-coupling theory, thus enabling a rapid computation of the electromagnetic field of a large-scale array of optical nanoresonators, which is a challenging task for full-wave numerical methods. Using this method, we consider the numerical example of the radiation problem of a single point source in a large-scale periodic array of optical nanoantennas. In comparison to full-wave numerical methods, this method significantly reduces the computation time by 1∼2 orders of magnitude while maintaining accuracy. The high computational efficiency and physical intuitiveness of the method enables to clarify the impact of array size (exceeding 50 × 50 wavelengths), period and field-coupling range (far beyond the tight-binding approximation) on the optical response. The proposed method and results can provide an efficient tool and guidance for the design of large-scale arrays of optical nanoresonators.
    Language English
    Publishing date 2024-03-04
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1491859-6
    ISSN 1094-4087 ; 1094-4087
    ISSN (online) 1094-4087
    ISSN 1094-4087
    DOI 10.1364/OE.515087
    Database MEDical Literature Analysis and Retrieval System OnLINE

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