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New Developments in Human Rights Protection in Era of Intelligent Technology

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China News Release 2024年第9期 17-21页

作者： Han Xiutao the center for Sci&Tech and Human Rights Studies at Beijing Institute of Technology

The latest technological revolution, led by the new generation of artificial intelligence, is sweeping across the globe with disruptive *** it transforms traditional patterns of production and life, it also imbues human rights with new theoretical meanings and practical *** this era of intelligent technology, respecting and safeguarding human rights has become a prominent trend and feature in the global evolution of human rights. China firmly holds the belief that “a happy life is the greatest human right” and is committed to promoting a balanced development between technological innovation and human rights protection.

关键词： holds technological Human

The dynamic covalent reaction based on diselenide-containing crown ether irradiated by visible light

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Chinese Chemical Letters 2021年第6期32卷 2005-2008页

作者： Jie Shang Hanlin Gong Qian Zhang Zhiliyu Cui Shuangran Li Ping Lv Tiezheng Pan Yan Ge Zhenhui Qi Sino-German Joint Research Lab for Space Biomaterials and Translational Technology Synergetic Innovation Center of Biological Optoelectronics and Healthcare Engineering(BOHE)Shaanxi Provincial Synergistic Innovation Center for Flexible Electronics&Health Sciences(FEHS)School of Life SciencesNorthwestern Polytechnical UniversityXi'an 710072China

A novel diselenide-containing crown ether(BC7Se_(2))was fabricated,which can polymerize to form cyclic oligomers through intermolecular dynamic covalent reaction by irradiation of visible *** size and distribution of oligomers are related to the monomer *** decomposition reaction of oligomers is controlled by topology and ***,potassium cation can inhibit the polymerization of BC7Se_(2)and accelerate the decomposition of oligomers.

关键词： Dynamic covalent Crown ether Metathesis reaction Visible light Diselenide bond

Hot subduction in the southern Paleo-Asian Ocean:Insights from clinopyroxene chemistry and Sr-Nd-Hf-Pb isotopes of Carboniferous volcanics in West Junggar

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Geoscience Frontiers 2024年第1期15卷 155-174页

作者： Yao Xiao Xijun Liu Wenjiao Xiao Xiao-Han Gong Hao Wu Yujia Song Zhiguo Zhang Pengde Liu Guangxi Key Laboratory of Hidden Metallic Ore Deposits Exploration College of Earth SciencesGuilin University of TechnologyGuilin 541004China Collaborative innovation center for Exploration of Nonferrous Metal Deposits and Efficient Utilization of Resource Guilin University of Technology Guilin 541004China National Key Laboratory of Ecological Security and Resource Utilization in Arid Areas Xinjiang Institute of Ecology and GeographyChinese Academy of SciencesUrumqi 830011China School of Earth Sciences and Resources China University of GeosciencesBeijing 100083China College of Civil Engineering Hexi UniversityZhangye 734000China

The chemical evolution and pressure-temperature conditions of subduction zone magmatism along ancient suture zones in orogenic belts can provide important information regarding plate convergence processes in *** magmatism in West Junggar is key to understanding the tectonothermal and subduction history of the Junggar Ocean,which was a branch of the Paleo-Asian Ocean,as well as the accretionary processes in the southwestern Central Asian Orogenic Belt(CAOB).We undertook a geochronological,mineralogical,geochemical,and Sr-Nd-Hf-Pb isotopic study of volcanic rocks from the Baikouquan area of West *** used these data to determine the petrogenesis,mantle source,and pressure-temperature conditions of these magmas,and further constrain the subduction and tectonic history of the Junggar *** studied volcanic rocks yielded zircon U-Pb ages of 342-337 Ma and are characterized by enrichments of large-ion lithophile elements(LILEs),and depletions in high-field-strength elements(HFSEs),indicative of an island arc *** volcanic rocks have positiveƐNd(t)(5.83-7.04)andƐHf(t)(13.47-15.74)values,87Sr/86Sr(t)ratios of 0.704023-0.705658,and radiogenic 207Pb/204Pb(t)and 208Pb/204Pb(t)ratios at a given 206Pb/204Pb(t)ratio,indicative of a depleted mantle source contaminated by subduction-related *** modeling calculations indicate that≤1%of a subduction component comprising fluid and sediment melt could have generated the source of the parental melts of the Baikouquan volcanic *** phenocrysts in the volcanic rocks are classified as high-and low-Ti clinopyroxene,and pressure-temperature calculations suggest the host rocks formed at high temperatures(~1300℃)and shallow to moderate depths(<2 GPa).The magma was probably generated by hot and hydrous melting in a mantle wedge in response to subduction of young,hot oceanic *** present results,combined with published data,suggest that the Baikouquan volcanic r

关键词： Hot subduction Sr-Nd-Hf-Pb isotopes Clinopyroxene chemistry West Junggar Central Asian Orogenic Belt

Boundary Hamiltonian Theory for Gapped Topological Orders

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Chinese Physics Letters 2017年第7期34卷 207-211页

作者：胡愈挺万义顿吴咏时 Department of Physics and center for Field Theory and Particle Physics Fudan University Collaborative innovation center of Advanced Microstructures State Key Laboratory of Surface Physics Fudan University Department of Physics and Astronomy University of Utah

We report our systematic construction of the lattice Hamiltonian model of topological orders on open surfaces, with explicit boundary terms. We do this mainly for the Levin-Wen string-net model. The full Hamiltonian in our approach yields a topologically protected, gapped energy spectrum, with the corresponding wave functions robust under topology-preserving transformations of the lattice of the system. We explicitly present the wavefunctions of the ground states and boundary elementary excitations. The creation and hopping operators of boundary quasi-particles are constructed. It is found that given a bulk topological order, the gapped boundary conditions are classified by Frobenius algebras in its input data. Emergent topological properties of the ground states and boundary excitations are characterized by （bi-） modules over Frobenius algebras.

关键词： Boundary Hamiltonian Theory for Gapped Topological Orders

Characterization of MnWO_4 with flower-like clusters produced using spray pyrolysis

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中国有色金属学会会刊：英文版 2009年第B09期19卷 100-104页

作者： Somchai THONGTEM Surangkana WANNAPOP Titipun THONGTEM Department of Physics and Materials Science Faculty of ScienceChiang Mai University Department of Chemistry and center for innovation in Chemistry Faculty of ScienceChiang Mai University

MnWO4 (huebnerite) with flower-like clusters of nano-plates was produced from the solutions containing MnCl2·4H2O and Na2WO4·2H2O by the 300 ℃ spray pyrolysis. The phase was detected by X-ray diffraction (XRD) and selected area electron diffraction (SAED), and is in accordance with the results characterized using energy dispersive X-ray (EDX) analysis. The flower-like clusters of nano-plates were characterized using scanning and transmission electron microscopes (SEM and TEM), and their parallel lattice planes using a high resolution transmission electron microscope (HRTEM). Vibration spectra of the huebnerite structured products were characterized using Raman and Fourier transform infrared (FTIR) spectrometers. Their photoluminescence (PL) emissions are in the same spectral region at 405-412 nm.

关键词：喷雾热分解高分辨透射电子显微镜表征产品集群傅立叶变换红外光谱 X射线衍射选区电子衍射

Ab initio density response and local field factor of warm dense hydrogen

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Matter and Radiation at Extremes 2024年第5期9卷 48-67页

作者： Tobias Dornheim Sebastian Schwalbe Panagiotis Tolias Maximilian P.Böhme Zhandos A.Moldabekov Jan Vorberger center for Advanced Systems Understanding(CASUS) D-02826 GörlitzGermany Helmholtz-Zentrum Dresden-Rossendorf(HZDR) D-01328 DresdenGermany Space and Plasma Physics Royal Institute of Technology(KTH)Stockholm SE-10044Sweden Technische Universität Dresden D-01062 DresdenGermany

We present quasi-exact ab initio path integral Monte Carlo(PIMC)results for the partial static density responses and local field factors of hydrogen in the warm dense matter regime,from solid density conditions to the strongly compressed *** full dynamic treatment of electrons and protons on the same footing allows us to rigorously quantify both electronic and ionic exchange–correlation effects in the system,and to compare the results with those of earlier incomplete models such as the archetypal uniform electron gas or electrons in a fixed ion snapshot potential that do not take into account the interplay between the two *** full electronic density response is highly sensitive to electronic localization around the ions,and our results constitute unambiguous predictions for upcoming X-ray Thomson scattering experiments with hydrogen jets and fusion *** PIMC results are made freely available and can be used directly for a gamut of applications,including inertial confinement fusion calculations and the modeling of dense astrophysical ***,they constitute invaluable benchmark data for approximate but computationally less demanding approaches such as density functional theory or PIMC within the fixed-node approximation.

关键词： local incomplete rigorous

Layer-by-layer assembly of nanocomposite films with thickness up to hundreds of nanometers

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中国有色金属学会会刊：英文版 2006年第3期16卷 582-586页

作者：周灵德阎玉华余海湖顾而丹姜德生 biomedical Materials and Engineering Research center Wuhan University of Technology Wuhan 430070 China Fiber Optic Sensing Technology Research center W uhan University of Technology Wuhan 430070 China

Polyelectrolyte/polyelectrolyte, organic molecule/colloidal CdS and polyelectrolyte/MWCNT films were fabricated via the layer-by-layer assembling technique. The assembled films were characterized by UV-vis spectrophotometer, X-ray diffractometry, nano profilometer and scanning electron microscopy. The results demonstrate that the layer-by-layer assembling technique can be used to make the nanoscaled films from polyelectrolytes and thicker composite films from suitable precursor materials. Both organic molecule/colloidal CdS films and PEI/MWCNT films with thickness of hundreds of nanometers were obtained. For the organic molecule/colloidal CdS films, a reasonable explanation for the result is that both the organic molecules and the CdS particles aggregate in the films. For the PEI/MWCNT films, obviously, it is the MWCNT that makes the great contribution to the film thickness.

关键词： CdS胶体有机分子纳米复合薄膜多层碳纳米管制备

Surface evolution of thermoelectric material KCu_(4)Se_(3) explored by scanning tunneling microscopy

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Chinese Physics B 2024年第8期33卷 422-427页

作者：夏玉敏马妮蔡德胜刘宇舟谷易通于淦霍思宇庞文慧肖翀秦胜勇 International center for Quantum Design of Functional Materials(ICQD) Hefei National Laboratory for Physical Sciences at Microscale(HFNL)University of Science and Technology of ChinaHefei 230026China CAS Key Laboratory of Strong Coupled Quantum Matter Physics Department of PhysicsUniversity of Science and Technology of ChinaHefei 230026China Hefei National Laboratory for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Institute of Energy Hefei Comprehensive National Science CenterHefei 230031China Dalian National Laboratory for Clean Energy Chinese Academy of Sciences(CAS)Dalian 116023China Hefei National Laboratory University of Science and Technology of ChinaHefei 230088China

Novel two-dimensional thermoelectric materials have attracted significant attention in the field of thermoelectric due to their low lattice thermal conductivity.A comprehensive understanding of their microscopic structures is crucial for driving further the optimization of materials properties and developing novel functional ***,by using in situ scanning tunneling microscopy,we report the atomic layer evolution and surface reconstruction on the cleaved thermoelectric material KCu_(4)Se_(3) for the first *** clearly revealed each atomic layer,including the naturally cleaved K atomic layer,the intermediate Se^(2-)atomic layer,and the Se^(-)atomic layer that emerges in the thermodynamic-stable *** from the maj ority of studies that predominantly concentrate on macroscopic measurements of the charge transport,our results reveal the coexistence of potassium disorder and complex reconstructed patterns of selenium,which potentially influences charge carrier and lattice *** results provide direct insight into the surface microstructures and evolution of KCu_(4)Se_(3),and shed useful light on designing functional materials with superior performance.

关键词： thermoelectric KCu_(4)Se_(3) scanning tunneling microscopy(STM) evolution

Manipulating photogenerated electron flow in nickel single‐atom catalysts for photocatalytic CO_(2)reduction into tunable syngas

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Carbon Energy 2024年第8期6卷 205-213页

作者： Yida Zhang Qingyu Wang Lihui Wu Haibin Pan Chengyuan Liu Yue Lin Gongming Wang Xusheng Zheng National Synchrotron Radiation Laboratory University of Science and Technology of ChinaHefeiAnhuiChina College of Chemistry and Materials Science University of Science and Technology of ChinaHefeiAnhuiChina Department of Chemistry Hefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefeiAnhuiChina

The key to designing photocatalysts is to orient the migration of photogenerated electrons to the target active sites rather than dissipate at inert ***,we demonstrate that the doping of phosphorus(P)significantly enriches photogenerated electrons at Ni active sites and enhances the performance for CO_(2)reduction into *** photocatalytic CO_(2)reduction,Ni single‐atom‐anchored P‐modulated carbon nitride showed an impressive syngas yield rate of 85μmol gcat^(−1)h^(−1)and continuously adjustable CO/H_(2)ratios ranging from 5:1 to 1:2,which exceeded those of most of the reported carbon nitride‐based single‐atom *** studies reveal that P doping improves the conductivity of catalysts,which promotes photogenerated electron transfer to the Ni active sites rather than dissipate randomly at low‐activity nonmetallic sites,facilitating the CO_(2)‐to‐syngas photoreduction process.

关键词： carbon nitride CO_(2)photoreduction electron flow Ni single atoms syngas