7,296 research outputs found
Did product certification and e-commerce benefit agricultural producers in China?
No full texthttp://dx.doi.org/10.13039/501100001809 National Natural Science Foundation of Chin
A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings
No full textXu, Xing, Zheng, Xiaoting, Sullivan, Corwin, Wang, Xiaoli, Xing, Lida, Wang, Yan, Zhang, Xiaomei, O'Connor, Jingmai K., Zhang, Fucheng, Pan, Yanhong (2015): A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings. Nature 521: 70-82, DOI: 10.1038/nature1442
Composition of New Music for Zheng
No full text[[abstract]]Zheng, also known as Guzheng, is a traditional music instrument, and, yet, capable of producing new sounds with widely varying styles of music. Therefore, the author adopted it as the research theme of this thesis study. Improvement of this music instrument was driven by social and cultural needs of each era. Better understanding of its characteristics was achieved through investigation of the instrument evolution, technique development and the scale system. Such understandings may be applied to the composition of Zheng music. Subsequently, the author analyzed the Zheng music of contemporary Taiwanese composers. Through research on music teachers’ works, the author was able to transform the learned techniques into author’s own music expressions. Using these elements, the author composed three Zheng music pieces as a demonstration of her transforming theoretical studies into creation of new Zheng music.
This thesis comprises five chapters:
Chapter 1 is the “Introduction,” which presents the motivation and purpose of this study as well as the sequence of the study and the structure of the thesis.
Chapter 2 is the “History of Zheng,” which describes the evolution of the instrument, the playing techniques and its scale system.
Chapter 3 is the “Analysis of Zheng Music by Contemporary Taiwanese Composers,” which allows the author to transform music phrases of other composers into music expressions of the author’s own.
Chapter 4 is the “Composition of New Music for Zheng, by author” which presents the three compositions for Zheng ensembles of different sizes.
Chapter 5 is the “Conclusions,” which summarizes the important findings of this study that may serve as the guidelines for future compositions.
Nan Song Shuzhou gong du yi jian zheng li yu yan jiu Zheng li yu yan jiu
No full textBen shu shi dui wo she yu 1990 nian chu ban de ying yin ben "Song ren yi jian" de zheng li yu yan jiu. Gai shu shi liao feng fu, she ji zheng zhi, jing ji, jun shi yi ji Song dai gong wen ge shi he shu yi, shi zhen gui de shi wu wen xian. "Song ren yi jian" fan ying le bu shao nan Song shi qi di fang guan fu ji gou she zhi he xing zheng guan li zhi du, bu chong le xu duo Song dai cai zheng, shui shou zheng ce de xin cai liao, bao liu le nan Song chu nian Jiang Huai di qu zhan bei zhuang kuang de xi jie cai liao, hai shi Song dai wen shu zhi du de zhong yao cai liao, you zhu yu Song shi yan jiu de shen ru. Zheng li ben yan jin gui fan, ge shi ming xi, ji ben huan yuan le Song jian tu ban de ben lai mian mao, ju you jiao qiang de can kao jia zh
Extended Data Figure 6 in A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings
No full textExtended Data Figure 6 | Elemental compositions of the styliform element and comparison samples based on EDS analyses. EDS spectra derived from: a, right manual phalanx II-1; b, right styliform element; c, feathers associated with right tibia; and d, sedimentary matrix.Published as part of Xu, Xing, Zheng, Xiaoting, Sullivan, Corwin, Wang, Xiaoli, Xing, Lida, Wang, Yan, Zhang, Xiaomei, O'Connor, Jingmai K., Zhang, Fucheng & Pan, Yanhong, 2015, A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings, pp. 70-82 in Nature 521 on page 16, DOI: 10.1038/nature14423, http://zenodo.org/record/268805
Extended Data Figure 7 in A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings
No full textExtended Data Figure 7 | Aerodynamic apparatuses in Yi and other tetrapods. a–c, Wing of Yi, Bat Model (a), Maniraptoran Model (b), and Frog Model (c); d, bat wing; e, pigeon wing; f, pterosaur wing; g, giant Japanese flying squirrel wing. Yellow colour indicates styliform element in a, b, c, d, f, and g.Published as part of Xu, Xing, Zheng, Xiaoting, Sullivan, Corwin, Wang, Xiaoli, Xing, Lida, Wang, Yan, Zhang, Xiaomei, O'Connor, Jingmai K., Zhang, Fucheng & Pan, Yanhong, 2015, A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings, pp. 70-82 in Nature 521 on page 17, DOI: 10.1038/nature14423, http://zenodo.org/record/268805
Extended Data Figure 1 in A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings
No full textExtended Data Figure 1 | Fossil-bearing beds of the Middle–Upper Jurassic Tiaojishan Formation in Qinglong County, Hebei. The Mutoudeng Locality (top) and Gangou Locality (bottom) are geographically close to each other (approximately 20 km apart) and very similar in their sedimentology and fossil content. The bottom image shows an excavation we organized at the Gangou Locality.Published as part of Xu, Xing, Zheng, Xiaoting, Sullivan, Corwin, Wang, Xiaoli, Xing, Lida, Wang, Yan, Zhang, Xiaomei, O'Connor, Jingmai K., Zhang, Fucheng & Pan, Yanhong, 2015, A bizarre Jurassic maniraptoran theropod with preserved evidence of membranous wings, pp. 70-82 in Nature 521 on page 11, DOI: 10.1038/nature14423, http://zenodo.org/record/268805
Non-noble metal Cu as a cocatalyst on TiO2 nanorod for highly efficient photocatalytic hydrogen production
No full textNanorod-like TiO2 photocatalysts with controllable particle size for hydrogen production were synthesized based on H2Ti3O7 precursors using hydrothermal and ion exchange methods. The characteristics of TiO2 photocatalysts, such as morphology, specific areas and crystalline quality, can be adjusted by changing hydrothermal conditions, thus optimizing its photocatalytic activity for hydrogen evolution. The TiO2 nanorod possesses the highest photocatalytic activity, even higher than P25, when the hydrothermal temperature is 140 °C, which should be ascribed to its large specific area and good crystalline quality. Non-noble metal Cu as a substitute of Pt was loaded on the surface of TiO2 nanorod to promote the photocatalytic hydrogen production. It was confirmed that, during the photocatalytic reaction process, Cu0 rather than CuOx acted as active sites to enhance the photocatalytic activity. The highest photocatalytic H2 evolution rate of Cu/TiO2 reaches 1023.8 μmol·h−1 when the amount of loading is 0.1 wt%, reaching the 20 times of that of bare TiO2 (49.4 μmol·h−1) and approaching that of Pt/TiO2 (1161.7 μmol·h−1). Non-noble metal Cu not only facilitated the separation of carriers, but reduced the overpotential of hydrogen evolution, thus promoting the photocatalytic activity for hydrogen production
A translation comparison of stray birds between Zheng Zhenduo’s version and Feng Tang’s version : from the perspective of manipulation theory
No full textThis paper employed Lefevere’s Manipulation Theory to explain respectively how
three main factors of Manipulation Theory, namely patronage, ideology and poetics
controlled Zheng Zhenduo’s and Feng Tang’s translation activity of Tagore’s Stray
Birds. And then the paper will analyze their translation strategies by comparing
certain poems in Stray Birds. However, author of this paper did not aim to reconfirm
Lefevere’s Manipulation Theory, but under his theoretical framework, tried to
interpret translation phenomenon from an extra-linguistic perspective.
Through analysis and comparison, the importance of three core elements was
different in those two versions. For Zheng Zhenduo, three main elements shared equal
impacts on his translation. His individual ideology and poetics conformed to
prevailing ideology and poetics in those days, and his patronage also exerted a
positive influence, therefore his Stray Birds received favorable reviews.
In Feng Tang’s case, individual poetics played the most important role. Although his
poetics reflected literary trends to some extent, but that is still not the mainstream in
today’s literary market. The translator’s subjectivity in Feng’s version was clearly
stronger than Zheng’s. For the purpose of literary innovation and commercial interests,
patronage did not manipulate Feng’s translation too much. As a result, Feng Tang’s
Stray Birds was forced to stop sales.
Key words: Zheng Zhenduo; Feng Tang; Stray Birds; Manipulation TheoryMaster of Art
δ<sup>13</sup>C values of bacterial hopanoids and leaf waxes as tracers for methanotrophy in peatlands
No full textMethane emissions from peatlands contribute significantly to atmospheric CH4 levels and play an essential role in the global carbon cycle. The stable carbon isotopic composition (δ13C) of bacterial and plant lipids has been used to study modern and past peatland biogeochemistry, especially methane cycling. However, the small number of recent peatlands that have been characterised and the lack of consistency between target compounds means that this approach lacks a rigorous framework. Here, we undertake a survey of bacterial and plant lipid δ13C values in peatlands from different geographic regions, spanning a wide range of temperature (−8 to 27 °C) and pH (∼3 to 8), to generate a reference dataset and probe drivers of isotopic variability. Within our dataset, the carbon fixation pathway predominantly determines leaf wax (n-alkane) δ13C values. Bacterial-derived C31 hopane δ13C values track those of leaf waxes but are relatively enriched (0 to 10‰), indicating a heterotrophic ecology and preferential consumption of 13C-enriched substrates (e.g. carbohydrates). In contrast, ≤C30 hopanoids can be strongly 13C-depleted and indicate the incorporation of isotopically light methane into the bacterial community, especially at near neutral pH (∼5–6 pH). Previous analysis of Eocene sediments has suggested isotopic decoupling between C31 and ≤C30 hopanoid δ13C values. Our work suggests a globally widespread decoupling in recent peatlands; this persists despite the profound diversity of hopanoid producing bacteria and associated controls on their δ13C values and it has significant implications for future work. Re-analysis of published data from: (1) the (mid-to-early) Holocene and late Glacial, and (2) latest Paleocene and earliest Eocene in this revised context highlights that perturbations to the peatland methane cycle occurred during the past, and we envisage that this approach could provide unique (qualitative) insights into methane cycling dynamics throughout the geological record
- …
