6,325 research outputs found
Geochemistry, zircon U-Pb geochronology and Hf isotopes of granites in the Baoshan Block, Western Yunnan: Implications for Early Paleozoic evolution along the Gondwana margin
No full textAbstract not availableMeiling Dong, Guochen Dong, Xuanxue Mo, M. Santosh, Dicheng Zhu, Junchuan Yu, Fei Nie, Zhaochu H
Early Cretaceous continental delamination in the Yangtze Block: evidence from high-Mg adakitic intrusions along the Tanlu fault, central Eastern China
No full textAbstract not availableLiqiong Jia, Xuanxue Mo, M. Santosh, Zhusen Yang, Dan Yang, Guochen Dong, Liang Wang, Xinchun Wang, Xuan W
Références sur "Garibong-dong"
No full textListe établie par Eunjoo Carré-Na, le 6 mars 2012 Title/Author/Year 재중동포의 상업 활동과 정체성 형성 : 가리봉동 현장 연구를 중심으로 / 이민주 ( [2008]) 외국인 밀집거주로 인한 내국인 주민의 주거환경 인식에 관한 연구 : 한남동, 가리봉동을 중심으로 = Local Residents' Perception of Foreigner's Dwelling : A case study of Hannam-dong, Garibong-Dong in Seoul / 박신영 ( [2009]) 가리봉동 중국거리에서의 조선족 여성의 위치성에 대한 문화․지리적 연구 = A Cutural-Geological Study on Positionality of Korean-Chinese women in the China street at Garibong-dong / 이미애 ( [2008]) 한국의 외국인 ..
Acoustic radiation due to scattering of T-S wave by the mean-flow distortion induced by steady local suction
No full textSubstantial sound waves can be generated by boundary-layer instability modes when the latter are scattered by a rapid mean-flow distortion. This is a rather generic mechanism and operates when an oncoming T-S wave is scattered by a steady local suction slot. This paper focuses on this problem by extending a recently developed Local Scattering Theory (Wu & Dong, J. Fluid Mech. submitted), where a so-called transmission coefficient, defined as the ratio of the T-S wave amplitude downstream of the scatter to that upstream, is introduced to characterize the effect of a local scatter on boundary-layer instability and transition. As in the earlier work, the mathematical formulation is based on triple-deck formulism, but in order to accommodate the acoustic far field, which was not considered in the paper mentioned, the unsteady terms in the upper deck, which play a leading-order role in radiation, are retained, and the influence of the radiated sound on the near-wall perturbation is included. The upper deck equation for the pressure is the Helmholtz equation rather than the Laplace equation. This leads to a modified pressure-displacement relation, which is coupled with the linearized boundary-layer equations in the lower deck. Discretization of the whole system formulates a generalized eigenvalue problem, which is solved numerically. It is found that suction suppresses oncoming T-S waves, and this effect increases with the suction velocity and the slot width. The directivity is ndependent of the flow parameters only when the Mach number is low. The intensity of the radiated sound in general increases with the frequency, the suction velocity and the width of the suction slot. Interestingly, for O(1) suction velocities, the radiated sound is very weak, indicating that the gain of stabilizing effect does not cause aeroacoustic penalty
Erratum: 3D bioprinted in vitro secondary hyperoxaluria model by mimicking intestinal-oxalatemalabsorption-related kidney stone disease (Applied Physics Reviews (2022) 9 (041408) DOI: 10.1063/5.0087345)
No full text© 2023 Author(s).This article was originally published online on 21 November 2022 with an incorrect affiliation identifier for author Dong-Woo Cho. It is correct as it appears above. All online versions of this article were corrected on 23 November 2022. AIP Publishing apologizes for this error.11Nsciescopu
Tetrahedrite-(Ni), Cu6(Cu4Ni2)Sb4S13, the first nickel member of tetrahedrite group mineral from Luobusa chromite deposits, Tibet, China
No full textTetrahedrite-(Ni) (IMA2021-031), ideally Cu-6(Cu4Ni2)Sb4S13, is the first natural Ni-member of tetrahedrite group mineral found in Luobusa chromite deposit, Tibet, China. The new species occurs as anhedral grains 2 to 20 mu m in size, associated with gersdorffite, vaesite, and chalcostibite, which are disseminated in a matrix of dolomite, magnesite, quartz, Cr-rich mica, and Cr-bearing clinochlore. Tetrahedrite-(Ni) is black in color with a reddish-black streak and metallic luster. It is brittle with uneven fractures and has a calculated density of 5.073 gcm(-3). The mean values of 9 electron micro-probe analyses (wt%) are Cu 39.83, Ni 5.67, Fe 1.45, Sb 21.69, As 5.45, S 25.39, total 99.48, and the empirical formula calculated on the basis of cation = 16 apfu is Cu-M(2)(6.00)M(1)[Cu-4.03(Ni1.55Fe0.42)(Sigma 1.97)](Sigma 6.00)(X(3))(Sb2.85As1.16)(Sigma 4.01)S-12.67. Tetrahedrite-(Ni) is cubic, with space group I43m, a = 10.3478(4) & Aring;, V = 1108.00(14) & Aring;(3), and Z = 2. Its crystal structure has been solved by X-ray single-crystal diffraction on the basis of 188 independent reflections, with a final R-1 = 0.0327. Tetrahedrite-(Ni) is isostructural with tetrahedrite group minerals. It represents the first natural tetrahedrite-group mineral with a Ni-dominated charge-compensating constituent. Tetrahedrite-(Ni) may be the product of late-serpentinization at moderately high-temperature conditions around 350 degrees C. In this case, tetrahedrite-(Ni) and its mineral paragenesis record an entire geological process of nickel enrichment, migration, activation, precipitation, and alteration from deep mantle to shallow crust
Nomenclature of the ancylite supergroup
No full textThe ancylite supergroup is approved by the IMA-CNMNC, with the general crystal chemical formula (M3+xM2+2-x)(CO3)2[(OH)x·(2–x)H2O] (1 ≤ x ≤ 2, Z = 2). The ancylite supergroup can be divided into two groups defined by different proportions of the M cation and hydroxyl anion and/or water molecule: the ancylite group is defined for 1 ≤ x ≤ 1.5; the kozoite group is defined for 1.5 < x ≤ 2. The ancylite supergroup minerals are orthorhombic with space group Pmcn, or monoclinic with space group Pm11, and have a crystal structure with species-defining trivalent and divalent M cations (M = La3+, Ce3+, Nd3+, Ca2+, Sr2+ and Pb2+) which centre ten-vertex polyhedron formed by oxygen atoms at three independent O sites. At the vertices of triangular (CO3)2- anion, two are oxygen atoms, while the third one, O(3), is statistically filled with (OH)- groups and H2O molecules. The triangular faces of three oxygen atoms of MO10 coordination polyhedra join the chains of this ten-vertex polyhedral, which is extended along the c axis. (CO3) triangles connect chains in three dimensions. Up to now, eight valid mineral species with M2+ = Sr2+, Ca2+ and Pb2+ belong to the ancylite group [ancylite-(La), ancylite-(Ce), calcioancylite-(La), calcioancylite-(Ce), calcioancylite-(Nd), gysinite-(La), gysinite-(Ce), and gysinite-(Nd)]. Two hydroxyl carbonates with only rare earth elements as species-defining cations, kozoite-(La) and kozoite-(Nd) are members of the kozoite group
The Dong Oral Architecture: Carpenter, architecture and phenomena among the Dong people in southwest of China
No full textThe Dong is a minority mainly living in southwest China. The Dong people do not have written language, the dissemination of knowledge mainly relies on the oral education and practice, forming a unique process and method of oral education, of architectural construction and the use of architecture. In this thesis these three processes are linked together and understood to produce ‘Oral Architecture’.
Oral architecture is a process through which the Dong architectural activity is reproduced and passed down through generations, letting people participate and observe phenomena, and thus apprehend the meaning of things and community. It is built on the relationships between people, activity and building. The series of activities that relate to buildings are simultaneously the motivation to construct intra-community relationships, to maintain traditions, and promote the broader process of living closely within their particular environment.
Through field research, interviews, literature review, case studies and other methods, I have collected information about the process and methods of the Dong oral education, of architectural construction, and the use and meaning of their architecture. Informed by architectural phenomenology, the thesis offers a qualitative analysis of this data in order to summarise and understand the mode and concept of Dong oral architecture. The structure of the thesis provides a broad introduction to Dong society and culture, before analysing the education and practice of Dong Carpentry; the construction of the Dong House and the Drum Tower (the most important public building in any Dong village). Concluding chapters focus on how systems of meaning and ‘reading’ are supported by Dong building and their practices of everyday life, as well as the significant events of birth, marriage and death.
All translations from Chinese are by the author unless otherwise stated
Xi jun ji qun yun dong zhong shui dong xiang hu zuo yong de yan jiu
No full textZhai, He = 细菌集群运动中水动相互作用的研究 / 翟翯.Thesis M.Phil. Chinese University of Hong Kong 2015.Includes bibliographical references (leaves 54-59).Abstracts also in Chinese.Title from PDF title page (viewed on 08, November, 2016).Zhai, He = Xi jun ji qun yun dong zhong shui dong xiang hu zuo yong de yan jiu / Zhai He
Building cultural and spiritual life of dong nai workers – real situation and solutions
No full textBuilding cultural and spiritual life of Dong Nai workers is the process of equipping, training and
upgrading the necessary qualities and competencies of the modern worker – the prerequisite that ensures
the success of the innovation, industrialization and modernization in this region. On the basis of
clarifying the basic characteristics of cultural and spiritual life of Dong Nai workers, the author analyzes
the achievements and limitations in the construction of cultural and spiritual life of the workers in Dong
Nai in recent years. The author proposes some main solutions to improving the cultural and spiritual life
of Dong Nai workers for achieving the local economic and social goals in the current period
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