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Nuclear Science and Techniques 2023年第6期34卷 79-90页

作者： Wan-Ning ren xin-xin Feng Yu-long He Ming-Lei Wang Wan-Feng Hong Hong-Wei Han Jiang-Tao Hu Guo-Zhong Wu School of Physical Science and Technology ShanghaiTech UniversityShanghai200031China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai201800China University of Chinese Academy of Sciences Beijing100049China College of Science University of Shanghai for Science and TechnologyShanghai200093China College of Science Shanghai UniversityShanghai200444China

Direct collection of uranium from low uranium systems via adsorption remains *** sorbent materials with amidoxime(AO)groups are promising adsorbents for uranium extraction from ***,low AO adsorption group utilization remains an *** herein fabricated a branched structure containing AO groups on polypropylene/polyethylene spun-laced nonwoven(PP/PE SNW)fibers using grafting polymerization induced by radiation(RIGP)to improve AO *** chemical structures,thermal properties,and surface morphologies of the raw and treated PP/PE SNW fibers were *** results show that an adsorptive functional layer with a branching structure was successfully anchored to the fiber *** adsorption properties were investigated using batch adsorption experiments in simulated seawater with an initial uranium concentration of 500μg·L^(−1)(pH 4,25℃).The maximum adsorption capacity of the adsorbent material was 137.3 mg·g^(−1)within 24 h;moreover,the uranyl removal reached 96%within 240 *** adsorbent had an AO utilization rate of 1/3.5 and was stable over a pH range of 4–10,with good selectivity and reusability,demonstrating its potential for seawater uranium extraction.

关键词： Radiation graft technology Branching structure High amidoxime utilization Seawater uranium extraction Ultrafast adsorption

Exploring Latent Semantic Information for Textual Emotion Recognition in Blog Articles

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IEEE/CAA Journal of Automatica Sinica 2018年第1期5卷 204-216页

作者： xin Kang Fuji ren Yunong Wu Faculty of Engineering Tokushima University 2-1 Minamijyousanjima-cho Tokushima 770-8506 Japan IEEE

Understanding people's emotions through natural language is a challenging task for intelligent systems based on Internet of Things(Io T). The major difficulty is caused by the lack of basic knowledge in emotion expressions with respect to a variety of real world contexts. In this paper, we propose a Bayesian inference method to explore the latent semantic dimensions as contextual information in natural language and to learn the knowledge of emotion expressions based on these semantic dimensions. Our method synchronously infers the latent semantic dimensions as topics in words and predicts the emotion labels in both word-level and document-level texts. The Bayesian inference results enable us to visualize the connection between words and emotions with respect to different semantic dimensions. And by further incorporating a corpus-level hierarchy in the document emotion distribution assumption, we could balance the document emotion recognition results and achieve even better word and document emotion predictions. Our experiment of the wordlevel and the document-level emotion predictions, based on a well-developed Chinese emotion corpus ren-CECps, renders both higher accuracy and better robustness in the word-level and the document-level emotion predictions compared to the state-of-theart emotion prediction algorithms.

关键词： Bayesian inference emotion-topic model emotion recognition multi-label classification natural language understanding

Feature selection of BOF steelmaking process data by using an improved grey wolf optimizer

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Journal of Iron and Steel Research International 2022年第8期29卷 1205-1223页

作者： Zong-xin Chen Hui Liu long Qi Faculty of Information Engineering and Automation Kunming University of Science and TechnologyKunming 650500YunnanChina Yunnan Key Laboratory of Artificial Intelligence Kunming University of Science and TechnologyKunming 650500YunnanChina

Basic oxygen furnace(BOF)steelmaking end-point control using soft measurement models has essential value for economy and ***,the high-dimensional and redundant data of the BOF collected by the sensors will hinder the performance of *** traditional feature selection results based on meta-heuristic algorithms cannot meet the stability of actual industrial *** order to eliminate the negative impact of feature selection application in the BOF steelmaking,an improved grey wolf optimizer(IGWO)for feature selection was proposed,and it was applied to the BOF data ***,the proposed algorithm preset the size of the feature subset based on the new encoding scheme,rather than the traditional uncertain number ***,opposition-based learning was used to initialize the grey wolf population so that the initial population was closer to the potential optimal *** addition,a novel population update method retained the features closely related to the best three grey wolves and probabilistically updated irrelevant features through measurement or random *** methods were used to search feature subsets to maximize search capability and stability of algorithm on BOF steelmaking ***,the proposed algorithm was compared with other feature selection algorithms on the BOF data *** results show that the proposed IGWO can stably select the feature subsets that are conductive to the end-point regression accuracy control of BOF temperature and carbon content,which can improve the performance of the BOF steelmaking.

关键词： Basic oxygen furnace Feature selection Grey wolf optimization Regression Opposition-based learning

Phase-controlled van der Waals growth of wafer-scale 2D MoTe_(2) layers for integrated high-sensitivity broadband infrared photodetection

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Light(Science & Applications) 2023年第1期12卷 77-88页

作者： Di Wu Chenguang Guo longhui Zeng Xiaoyan ren Zhifeng Shi long Wen Qin Chen Meng Zhang xin Jian Li Chong-xin Shan Jiansheng Jie School of Physics and Microelectronics Key Laboratory of Material Physics Ministry of EducationZhengzhou UniversityZhengzhouHenan 450052China Department of Electrical and Computer Engineering University of California San DiegoLa JollaCA 92093USA Institute of Nanophotonics Jinan UniversityGuangzhouGuangdong 511443China Institute of Functional Nano and Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials and DevicesSoochow UniversitySuzhouJiangsu 215123China

Being capable of sensing broadband infrared(IR)light is vitally important for wide-ranging applications from fundamental science to industrial ***-dimensional(2D)topological semimetals are being extensively explored for broadband IR detection due to their gapless electronic structure and the linear energy dispersion ***,the low charge separation efficiency,high noise level,and on-chip integration difficulty of these semimetals significantly hinder their further technological ***,we demonstrate a facile thermal-assisted tellurization route for the van der Waals(vdW)growth of wafer-scale phase-controlled 2D MoTe_(2)***,the type-ⅡWeyl semimetal 1T'-MoTe_(2)features a unique orthorhombic lattice structure with a broken inversion symmetry,which ensures efficient carrier transportation and thus reduces the carrier *** characteristic is a key merit for the well-designed 1T'-MoTe_(2)/Si vertical Schottky junction photodetector to achieve excellent performance with an ultrabroadband detection range of up to 10.6μm and a large room temperature specific detectivity of over 108 Jones in the mid-infrared(MIR)***,the large-area synthesis of 2D MoTe_(2)layers enables the demonstration of high-resolution uncooled MIR imaging capability by using an integrated device *** work provides a new approach to assembling uncooled IR photodetectors based on 2D materials.

关键词： hinder enable difficulty

A Static Solution of Yang-Mills Equation on Anti-de Sitter Space

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Communications in Theoretical Physics 2009年第5期51卷 794-796页

作者： CHEN Li ren xin-An Department of Mathematics China University of Mining and Technology Xuzhou 221116 China

Since product metric on AdS space has played a very important role in Lorentz version of AdS/CFT correspondence, the Yang Mills equation on AdS space with this metric is considered and a static solution is obtained in... 详细信息

关键词： anti-de sitter space Yang Mills equation spin connection

Vector meson's spin alignments in high energy reactions

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Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 5-20页

作者： Jin-Hui Chen Zuo-Tang Liang Yu-Gang Ma xin-Li Sheng Qun Wang Key Laboratory of Nuclear Physics and Ion-beam Application (MoE) Institute of Modern PhysicsFudan University Institute of Frontier and Interdisciplinary Science Key Laboratory of Particle Physics and Particle Irradiation (MOE)Shandong University INFN-Firenze Department of Modern Physics University of Science and Technology of China School of Mechanics and Physics Anhui University of Science and Technology

The global spin alignment of vector mesons has been observed by the STAR collaboration at the Relativistic Heavy Ion Collider （RHIC） at Brookhaven National Laboratory （BNL）.It provides a unique opportunity to probe the correlation between the polarized quark and antiquark in the strongly coupled quark-gluon plasma （sQGP） produced in relativistic heavy ion collisions,opening a new window to explore the properties of s *** addition,spin alignments of vector mesons have also been observed in other high-energy particle collisions such as e+e-annihilations at high energies where hadron production is dominated by quark fragmentation *** results obtained are quite different from those obtained in heavy ion collisions where quark coalescence/combination mechanism dominates suggesting strong dependence on hadronization *** comprehensive studies in different hadronization processes are *** this article,we present a brief review of theoretical and experimental advances in the study of vector meson’s spin alignments in a variety of high-energy particle collisions,with emphasis on hadronization mechanisms.

关键词： vector meson spin alignment global polarization relativistic heavy ion collisions fragmentation

The timing behavior of magnetar Swift J1822.3—1606: timing noise or a decreasing period derivative?

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Research in Astronomy and Astrophysics 2013年第10期13卷 1207-1212页

作者： Hao Tong ren-xin Xu xinjiang Astronomical Observatory Chinese Academy of Sciences KIAA and School of Physics Peking University

The different timing results of the magnetar Swift J1822.3—1606 are analyzed and understood *** is noted that different timing solutions are caused not only by timing noise,but also because the period derivative is decreasing after the *** the decreasing period derivative and the large timing noise may originate from wind braking associated with the *** timing of Swift J1822.3—1606 will help clarify whether or not its period derivative is decreasing with time.

关键词： pulsars:individual(Swift J1822.3—1606) stars:magnetar stars:neutron

Sn/n3O4-x heterostructure rich in oxygen vacancies with enhanced visible light photocatalytic oxidation performance

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International Journal of Minerals,Metallurgy and Materials 2021年第1期28卷 150-159页

作者： Rui-qi Yang Na Liang Xuan-yu Chen long-wei Wang Guo-xin Song Yan-chen Ji Na ren Ya-wei Lü Jian Zhang xin Yu Institute for Advanced Interdisciplinary Research(IAIR) University of JinanJinan 250022China School of physics and electronics Hunan UniversityChangsha 410082China Institute Charles Gerhardt UMR 5253CNRS-UM-ENSCMUniversitéde MontpellierPlace Eugène BataillonF-34095 Montpellier cedex 5France

Sn3O4, a common two-dimensional semiconductor photocatalyst, can absorb visible ***, owing to its rapid recombination of photogenerated electron-hole pairs, its absorption is not sufficient for practical *** this work, a Sn nanoparticle/Sn3O4-x nanosheet heterostructure was prepared by in situ reduction of Sn3O4 under a H2 *** Schottky junctions formed between Sn and Sn3O4-x can enhance the photogenerated carrier separation *** the hydrogenation process, a portion of the oxygen in the semiconductor can be extracted by hydrogen to form water, resulting in an increase in oxygen vacancies in the *** heterostructure showed the ability to remove Rhodamine *** cytocompatibility experiments proved that Sn/Sn3O4-x can significantly enhance cell compatibility and reduce harm to *** work provides a new method for the fabrication of a Schottky junction composite photocatalyst rich in oxygen vacancies with enhanced photocatalytic performance.

关键词： photocatalysis tin oxide oxygen vacancy Schottky junction photodegradation

Anick Resolution and the Minimal Projective Resolution of U_(q)+(C_(3))

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Acta Mathematica Sinica,English Series 2023年第6期39卷 1022-1052页

作者： Ling Ling MAO Xiao long xin School of Mathematics Northwest UniversityXi'an 710127P.R.China School of Science Xi'an Polytechnic UniversityXi'an 710048P.R.China

In this paper,from the Anick’s resolution and Grobner-Shirshov basis for quantized enveloping algebra of type C_(3),we compute the minimal projective resolution of the trivial module U_(q)+(C_(3))and as an applicatio... 详细信息

关键词： Anick resolution minimal projective resolution Grobner-Shirshov basis global dimension

Asymmetric conductivity of the Kondo effect in cold atomic systems

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Frontiers of physics 2022年第1期17卷 71-77页

作者： Yanting Cheng xin Chen ren Zhang Institute for Advanced Study Tsinghua UniversityBeijing100084China School of Science Xi’an Jiaotong UniversityXi’an710049China

Motivated by recent theoretical and experimental advances in quantum simulations using alkaline earth(AE)atoms,we put forward a proposal to detect the Kondo physics in a cold atomic *** has been demonstrated that the intrinsic spin-exchange interaction in AE atoms can be significantly enhanced near a confinement-induced resonance(CIR),which facilitates the simulation of Kondo *** the Kondo effect appears only for antiferromagnetic coupling,we find that the conductivity of such system exhibits an asymmetry across a resonance of spin-exchange *** asymmetric conductivity can serve as the smoking gun evidence for Kondo physics in the cold atom *** an extra magnetic field ramps up,the spin-exchange process near Fermi surface is suppressed by Zee-man energy and the conductivity becomes more and more *** results can be verified in the current experimental setup.

关键词： Kondo effect alkaline earth atom confinement induced resonance