536 research outputs found
Ba wang bie ji
No full textSide 1. 1. 四郎探母 ; 空城計 ; 捉放曹 / 余叔岩. 2. 西廂記 ; 詩文會 / 張君秋 -- Side 2. 3. 霸王別姬 / 高盛麟, 言慧珠.Title supplied by cataloguer.Possibly reproduced from other commercial recording or radio broadcast (Pending for review)Electronic reproduction from Rulan Chao Pian Audio Cassette Collection.Performers: 余叔岩, 張君秋, 高盛麟, 言慧珠.Sung in Chinese.Performers: Yu Shuyan, Zhang Junqiu, Gao Chenglin, Yan Huizhu.Detailed contents in vernacular field only
sj-H-4-pib-10.1177_09544054221090043 – Supplemental material for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution
No full textSupplemental material, sj-H-4-pib-10.1177_09544054221090043 for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution by Chenglin Yao, Gaiyun He, Yicun Sang and Yichen Yan in Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture</p
sj-H-2-pib-10.1177_09544054221090043 – Supplemental material for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution
No full textSupplemental material, sj-H-2-pib-10.1177_09544054221090043 for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution by Chenglin Yao, Gaiyun He, Yicun Sang and Yichen Yan in Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture</p
sj-H-1-pib-10.1177_09544054221090043 – Supplemental material for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution
No full textSupplemental material, sj-H-1-pib-10.1177_09544054221090043 for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution by Chenglin Yao, Gaiyun He, Yicun Sang and Yichen Yan in Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture</p
sj-H-3-pib-10.1177_09544054221090043 – Supplemental material for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution
No full textSupplemental material, sj-H-3-pib-10.1177_09544054221090043 for Tool path regeneration in five-axis flank milling for ruled surface based on error distribution by Chenglin Yao, Gaiyun He, Yicun Sang and Yichen Yan in Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture</p
Nano-self-assembly in Mn-based spinels through solid state process
No full textTransition-metal oxides characterized with anisotropic d-orbital electrons are subject to intense discussion in strongly correlated electron systems, ranging from colossal magnetoresistance (CMR) to high temperature superconductivity (HTSC). The orbital degree of freedom often underpins complex physical properties and a variety of extraordinary phenomena while coupling with charge, spin and lattice. In this thesis, we demonstrate a fascinating example of orbital-related physical properties in Mn-based spinels. The strong octahedral preference of Jahn-Teller ions Mn3+ results in simultaneous chemical and structural phase separation into Mn-poor (cubic) and Mn-rich (tetragonal) regions, forming two types of rectangular nanorods with cross section checkerboard-like (CB). Because of the pioneering discovery of checkerboards in the nonmagnetic ZnMnxGa1-xO4, we chose to study two magnetic spinel systems: (1) Mg(MnxFe1-x)O4, where unfortunately only poorly-ordered magnetic nano CBs were observed; and (2) Mn-doped CoFe2O4, the nano CBs with distinct magnetic properties and tunable sizes achieved here are highly ordered, exhibiting a nearly ideal architecture for the patterned perpendicular recording medium. The evolution of such compositional separation and topological nanoscale ordering is reasonably understood based on a three dimensional (3D) phase-field microelasticity (PFM) model.Ph.D.Includes bibliographical references.by Chenglin Zhan
Univariate Statistical Analysis as a Guide to 1H-NMR Spectra Signal Assignment by Visual Inspection
No full textIn Proton Nuclear Magnetic Resonance (1H-NMR) spectroscopy, the signals assignment procedure is normally conducted by visual inspection of the spectra, by taking advantage of the innate predisposition of human eye for pattern recognition. In the case of untargeted metabolomics investigations on food and body fluids, the complexity of the spectra may lead the user to overlook signals, independently from their biological relevance. Here, we describe a four steps procedure that is designed to guide signals assignment task by visual inspection. The procedure can be employed whenever an experimental plan allows for the application of a univariate statistical analysis on a point-by-point basis, which is commonly the case. By comparing, as a proof of concept, 1H-NMR spectra of vaginal fluids of healthy and bacterial vaginosis (BV) affected women, we show that the procedure is also readily usable by non-experts in three particularly challenging cases: overlapping multiplets, poorly aligned signals, and signals with very poor signal-to-noise ratio. The paper is accompanied by the necessary codes and examples written in R computational language to allow the interested user gaining a hands-on impression of the procedure’s strengths and weaknesses
Confining nitrogen nanobubbles within plasma etched voids to promote reactant supply for enhanced electrochemical nitrogen reduction reaction under ambient conditions
No full textThe electrocatalytic nitrogen reduction reaction (NRR) holds great potential for green ammonia synthesis and has aroused interest of the scientific community. However, the restricted nitrogen supply at the reaction interface has always been the major unresolved issue, leaving the actual performance much to be desired. Herein, a nitrogen confining strategy achieved by plasma etching is proposed to address this challenge. A large number of voids can be in situ constructed in the basal plane of the catalyst upon plasma etching. The void-like defects would induce surface heterogeneity and effectively enhance the van der Waals interactions between the electrocatalyst and the nitrogen molecules, triggering directional nitrogen transfer toward the catalyst. The oncoming nitrogen nanobubbles can be effectively captured by the voids, providing abundant reactant supply and thus boosting the whole NRR process. As expected, the atomically dispersed metal-nitrogen-carbon catalyst with optimized plasma etching treatment delivers a superior ammonia yield rate of 35.24 μg h−1 mg−1 and an outstanding Faradaic efficiency of 53.99 % at −0.3 V versus reversible hydrogen electrode. This work underscores the importance of abundant reactant supply and presents a versatile strategy for enhancing the overall performance of gas-involved electrochemical reactions
Lithium dendrite inhibition via 3D porous lithium metal anode accompanied by inherent SEI layer
No full textLithium (Li) metal anodes have been considered as the ultimate anode materials for the next-generation rechargeable batteries. However, uneven dendrite formation and anode volume expansion still can put a brake on the development of Li metal anode. Here, freestanding three-dimensional Li metal foam accompanied by inherent solid electrolyte interphase (SEI) capsulation formed by template-free chemical etching is constructed to promote the uniform lithium deposition and suppress dendritic Li growth. Contrary to planar Li metal foil, the 3D porous Li matrix can buffer the volume change and guide Li deposition inside its porous structure. Moreover, the encapsulated artificial SEI layer, which efficiently uniform the diffusion of Li ions on the interface, enables deeply deposited Li metal. Benefiting from the unique deposition kinetics, the Li plating/stripping process based on our strategy can be deeply cycled at various current densities with low overpotential between 1.0 and 20.0 mA cm−2 and achieve long lifetime up to 350 h. Moreover, Li metal batteries with LiNiCoMnO2 (Ni:Co:Mn=1:1:1) cathode exhibit excellent electrochemical performance at high current density and active material loading for more than 20.4 mg cm−2. In terms of both porous Li matrix and inherent dense SEI layer, our cell greatly suppresses the gassing process and reduces heat generation, further demonstrating the reliability and security of the batteries
Lipidomics for Determining Giant Panda Responses in Serum and Feces Following Exposure to Different Amount of Bamboo Shoot Consumption: A First Step towards Lipidomic Atlas of Bamboo, Giant Panda Serum and Feces by Means of GC-MS and UHPLC-HRMS/MS
No full textLipidic metabolites play essential roles in host physiological health and growth performance, serving as the major structural and signaling components of membranes, energy storage molecules, and steroid hormones. Bamboo, as wild giant pandas’ exclusive diet, is the main determinant of giant pandas’ lipidome, both as a direct source and through microbiota activity. Interestingly, the consumption of bamboo has attracted little attention from a lipidomic perspective. In the current study, we outline the lipidomic atlas of different parts of bamboo. By gas chromatography—mass spectrometry (GC-MS), we have been able to obtain the absolute quantification of 35 fatty acids pertaining to short chain fatty acids (8), medium chain fatty acids (6), long chain fatty acids (17), and very long chain fatty acids (4), while liquid chromatography coupled to high-resolution mass spectrometry (UHPLC-HRMS/MS) allowed us to obtain the relative quantification of another 1638 lipids. Among the fatty acids quantified in absolute terms, eight showed significantly distinct concentrations among different bamboo parts. Subsequently, we investigated how the giant panda’s serum and fecal lipidome adapt to the most important annual change in their diet, represented by the consumption of high amounts of bamboo shoots, typical of spring, the weight-gaining season. Five fatty acids were significantly altered in feces and two in serum, respectively, due to the different levels of bamboo shoot consumption. Furthermore, significant differences of the main bacteria strains were observed in feces between the two groups at the genus level, pertaining to Streptococcus, Leuconostoc, and Vagococcus. Correlations between giant panda fecal microbiome and lipidome were evaluated by Pearson correlation analysis. These findings suggest that a balanced diet, important for the overall lipidomic function and giant panda health, could be reached even in this remarkable case of a single food-based diet, by administering to the giant panda’s combinations of different parts of bamboo, with specific lipidome profiles
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