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Texture of Cold Rolled Strip of Fe-3Si Steel Produced by Thin Slab Casting and Rolling

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Journal of Iron and Steel Research International 2011年第3期18卷 40-46页

作者： LI chang-sheng YANG Hua WANG Yan-fang YU yong-mei State Key Laboratory of Rolling and Automation Northeastern UniversityShenyang 110004LiaoningChina Shougang Qian'an Iron and Steel Corporation Qian'an 064404HebeiChina

The hot rolled strip of Fe-3Si steel was experimentally produced by thin slab casting and rolling（TSCR） process in the *** texture evolution rule was investigated during hot rolling and cold *** texture distribution of cold rolled strips with four kinds of cold rolling reduction schedules was observed through X-ray diffraction method,and the orientation density variation of 1/16 layer,1/8 layer,1/4 layer,and 1/2 layer in thickness was *** cold rolled texture of steel A with four kinds of cold rolling reduction schedules was mainly composed of α and γ *** rolling reduction ratio of 70% was more beneficial for obtaining more γ *** γ fiber texture orientation density of {111}01-1 and {111}1-1-2 was the largest on the 1/8 layer and 1/4 layer and the least on the 1/16 layer and 1/2 layer for steel *** texture orientation density of {001}-{223}11-0 in the α fibers for steel C was increased,but the texture orientation density of {332}-{110}11-0 was low.

关键词： silicon steel texture hot rolling cold rolling thin slab continuous casting direct rolling

A Note about Minimal Hypercones

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Acta Mathematica Sinica,English Series 2021年第11期37卷 1794-1802页

作者： yong sheng ZHANG School of Mathematical Sciences&IAS Tongji UniversityShanghai 200092P.R.China

This short note is concerned with a measure version criterion for hypersurfaces to be *** natural flows and associated reflections for many minimal hypercones,including minimal isoparametric hypercones and area-minimi... 详细信息

关键词： Minimal hypercone measure invariant flow foliation

Numerical investigation on coherent mid-infrared supercontinuum generation in chalcogenide PCFs with near-zero flattened all-normal dispersion profiles

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Chinese Physics B 2019年第10期28卷 338-344页

作者： Jie Han sheng-Dong chang Yan-Jia Lyu yong Liu State Key Laboratory of Electronic Thin Film and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054China School of Environment 3480 University StreetMcGill UniversityMontreal H3A 0E9Canada

We design a novel all-normal flat near-zero dispersion chalcogenide photonic crystal fiber(PCF) for generating midinfrared(MIR) supercontinuum(SC). The proposed PCF with a core made of As2Se3 glass and uniform air holes in the cladding is selectively filled with As2S5 glass. By carefully engineering the PCF with an all-normal flat near-zero dispersion profile, the anomalous-dispersion soliton effect is reduced, thus enabling broadband highly coherent SC to be *** also investigate the influence of the pulse parameters on the SC generation. Broadband SC covering 1.4 μm-10 μm with perfect coherence is achieved by pumping the proposed 3-cm-long PCF with 3-μm 100-fs pulses. The results provide a potential all-fiber realization of the broadband coherent MIR-SC.

关键词： supercontinuum generation photonic crystal fiber nonlinear optics

Organic-rich rocks;Paleoenvironment;Lucaogou Formation;Jimusar Sag;Junggar Basin

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Petroleum Science 2019年第4期16卷 763-775页

作者： chang-sheng Qu Long-Wei Qiu Ying-chang Cao yong-Qiang Yang Kuan-Hong Yu School of Geosciences China University of PetroleumQingdao 266580ShandongChina Shandong University of Science and Technology Qingdao 266590ShandongChina Key Laboratory of Deep Oil and Gas Geology and Geophysics (China University of Petroleum)Ministry of EducationQingdao 266580ShandongChina

The Lucaogou Formation in the Jimusar Sag of the eastern Junggar Basin is an important sedimentary stratum accumulating huge amounts of lacustrine tight oil in China, where organic-rich rocks are commonly observed. Focusing on the Lucaogou Formation, a precise analysis of the inorganic and organic petrology and the inorganic geochemistry characteristics was conducted. The paleoclimate and paleoenvironment during sedimentation of the Lucaogou Formation were established,and the key factors that were controlling the accumulation of organic matter during this time were identified. The results of this study suggest that during the sedimentation of the Lucaogou Formation, the paleoclimate periodically changed from a humid environment to an arid environment. As a result, the salinity of the water and the redox environment *** the sedimentation period, the lake showed su cient nutrient supplies and a high primary productivity. The interval studies in the Lucaogou Formation were divided into five sedimentary cycles, where the first, second, and fifth sedimentary cycles consisted of cyclical paleoclimate fluctuations varied from a humid environment to an arid environment and shifted back to a humid environment with levels of salinity from low to high and decreased again. The third and fourth cycles have cyclical fluctuations from a humid to an arid environment and corresponding salinity variation between low and high *** the period when organic-rich rocks in the Lucaogou Formation deposited in the Jimusar Sag, the paleoclimate and the water body were suitable for lower aquatic organisms to flourish. As a result, its paleoproductivity was high, especially during the early period of each cycle. A quiet deep water body is likely to form an anoxic environment at the bottom and is also good for accumulation and preservation of organisms. Fine-grained sediments were accumulated at a low deposition rate, with a low dilution of organic matter. Therefore, high

关键词： Organic-rich rocks Paleoenvironment Lucaogou Formation Jimusar Sag Junggar Basin

Feedback processing in the primate brain and in AI systems

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Science China(Technological Sciences) 2024年第8期67卷 2297-2309页

作者： JIANG yong HE sheng Institute of Biophysics Chinese Academy of SciencesBeijing 100101China Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefei 230088China University of Chinese Academy of Sciences Beijing 100049China

The primate brain and artificial intelligence(AI) can both be conceptualized as information processing systems, each with its own distinct biological and computational architectures. While there are parallels between them, their respective structural and functional connections show significant differences. In this paper, we examine the central role of feedback processing in both the primate brain and AI systems, which has been shown to be crucial in shaping neural processing. By reviewing the key features of feedback processes in the primate brain, which allows the brain to incorporate prior knowledge, contextual information, and taskdemands into early-stage processing, we highlight the divergence in goals and functions between biological and AI *** these differences is crucial for elucidating the cognitive capabilities of the primate brain and for addressing computational challenges in AI. In advocating “Cognition-Inspired-Computation”, we suggest that integrating insights from feedback processing in the primate brain into AI research will offer potentially significant improvements for the advancement of AI systems.

关键词： cognitive neuroscience artificial intelligence feedback processing attention learning

Tetra-detector size exclusion chromatography characterization of molecular and solution properties of soluble microbial polysaccharides from an anaerobic membrane bioreactor

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Frontiers of Environmental Science & Engineering 2017年第2期11卷 165-174页

作者： Qingbin Guo sheng chang School of Engineering University of Guelph Guelph Ontario N 1G 2W1 Canada

Characterization of the molecular properties of soluble microbial products （SMP） is critical for understanding the membrane filtration and fouling mechanisms in anaerobic and aerobic membrane bioreactors （AnMBR ＆ MBR）. In this study, the distributions of the absolute molecular weight and intrinsic viscosity of SMP polysaccharides from an AnMBR were effectively determined by a high pertbrmance size exclusion chromatography （HPSEC） that was coupled with the refractive index （RI）,cliode array UV （DAUV）, right and low angle light scattering （LS）, and viscometer （Vis） detectors. Based on the tetra-detector HPSEC determined absolute molecular weights and intrinsic viscosity, a universal calibration relationship for the SMP polysaccharides was developed and the molecularconformations, average molecular weights~ and hydrodynamic sizes of the SMP polysaccharides were also explored. Two factors which can be derived from the tetra-detector HPSEC analysis were proposed for the characterization of the viscous and osmotic pressure properties of the SMP polysaccharides. In addition, it was also extrapolated how to analyze the resistance characteristics of the concentration polarization layers formed in membrane filtration based on the molecular properties determined by the tetra-detector HPSEC analysis.

关键词： Soluble microbial productExtracellular polymeric substanceMembrane bioreactorMembrane foulingMolecular weightIntrinsic viscosity

Research on Inorganic Anion Recognition of Calix[4]pyrroles and Dipyrrylmethanes by Capillary Zone Electrophoresis

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Chinese Journal of Chemistry 2005年第11期23卷 1515-1518页

作者： ZHOU, chang-Zheng QIU, Hong-Deng GUO, yong JIANG, sheng-Xiang Key Laboratory for Natural Medicine of Gansu Province Lanzhou Institute of Chemical Physics Graduate School of the Chinese Academy of Sciences Lanzhou Gansu 730000 China

Capillary electrophoresis （CE） can separate charged and neutral substances with high speed and efficiency. In this paper, utilizing meso-octamethylcalix[4]pyrrole, meso-tetraspirocyclohexylcalJx[4]pyrrole, bimethyl bi（2-pyrryl）- methane and 1,1-bi（2-pyrryl）cyclohexane as additives in capillary zone electrophoresis （CZE） electrolyte, their recognition ability to inorganic anions was discussed. The dipyrrylmethanes have better recognition ability than others. Their effects on separation of seven normal inorganic anions by CZE were studied.

关键词： calixpyrrole dipyrrylmethane anion recognition capillary electrophoresis inorganic anion

On Lawson's Area-minimizing Hypercones

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Acta Mathematica Sinica,English Series 2016年第12期32卷 1465-1476页

作者： yong sheng ZHANG School of Mathematics and Statistics Northeast Normal University

We show the area-minimality property of all homogeneous area-minimizing hypercones in Euclidean spaces （classified by Lawlor） following Lawson＇s original idea in his 72＇ Trans. A.M.S. paper ＂The equivariant Plateau problem and interior regularity＂. Moreover, each of them enjoys （coflat） calibrations singular only at the origin.

关键词： Area-minimizing hypercone coflat calibration comass

Relative Derived Equivalences and Relative Homological Dimensions

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Acta Mathematica Sinica,English Series 2016年第4期32卷 439-456页

作者： sheng yong PAN Department of Mathematics Beijing Jiaotong UniversityBeijing 100044P.R.China Beijing Center for Mathematics and Information Interdisciplinary Sciences Beijing 100048P.R.China

Let A be a small abelian *** a closed subbifunctor F of Ext_A^1（-,-）,Buan has generalized the construction of Verdier’s quotient category to get a relative derived category,where he localized with respect to F-acyclic *** this paper,the homological properties of relative derived categories are discussed,and the relation with derived categories is *** Artin algebras,using relative derived categories,we give a relative version on derived equivalences induced by F-tilting *** discuss the relationships between relative homological dimensions and relative derived equivalences.

关键词： Relative derived category F-tilting complex relative derived equivalence relative homological dimension