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Complete multiple round quantum dense coding with quantum logical network

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Chinese Science Bulletin 2007年第9期52卷 1162-1165页

作者： LI ChunYan1,2,LI XiHan1,2,DENG FuGuo1,2.3,zhou Ping1,2 & zhou {3.,2.3 1 key laboratory of beam technology and Material modification of ministry of education,beijing {13. university,beijing 100875,china 2 institute of Low energy nuclear physics,and Department of Material Science and Engineering,beijing {13. university,beijing 100875,china 3.beijing Radiation Center,beijing 100875,china key laboratory of {2. {3. and Material modification of ministry ofeducation Beijing Normal University Beijing 100875 China

We present a complete multiple round quantum dense coding scheme for improving the source ca-pacity of that introduced recently by zhang et al. The receiver resorts to two qubits for storing the four local unitary ope... 详细信息

关键词：量子通信多重量子紧凑编码量子逻辑网络量子纠缠

Effect of Microstructural Characteristics on Fracture Toughness in Direct energy Deposited Novel Ti-6Al-4V-1Mo Alloy

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Acta Metallurgica Sinica(English Letters) 2024年第1期37卷 119-131页

作者： Chao Xia Kexin zhao Xin zhou Yuqi He Panpan Gao Hengxin {2. Guangrui Gao Fengying {2. Hua Tan School of Material Science and Engineering Chang’an UniversityXi’an710064China Science and technology on Plasma Dynamics laboratory Air Force Engineering UniversityXi’an710038China State key laboratory of Solidification Processing Northwestern Polytechnical UniversityXi’an710072China Surface Material Protection Co. LtdXi’an710018China

Meeting the damage tolerance requirements for engineering-grade titanium alloys pose a significant challenge in achieving high fracture toughness in direct energy deposition(DED)titanium *** work primarily investigated the relationship between the microstructure and the fracture toughness of DED new Ti-6Al-4V-1Mo *** types of microstructures were designed via two process strategies:high-line energy density(HE)and low-line energy density(LE).Relative to LE samples,HE samples possess larger-sized microstructural characteristics(coarser grain boundaryα(α_(GB)),largerαcolonies,and coarserαlaths).Lessα/βphase boundaries were formed by coarserαlaths in the HE samples,increasing the movement of dislocations,resulting in tensile strength decreasing from 1007.1 MPa(LE)to 93..8 MPa(HE)and elongation increasing from 10.8%(LE)to 15.7%(HE).Also,HE samples exhibited an excellent fracture toughness of 114.0 MPa m^(1/{3.,significantly higher than that of LE samples(76.8 MPa m^(1/{3.).An analysis of crack propagation paths was conducted to investigate the factors contributing to *** primary factor enhancing toughness is the frequent obstruction of cracks by coarseαGB and largeαcolonies in HE ***,the pretty large-angle deflections induced by the superposition effect of coarseαGB and largeαcolonies play a vital of significant *** factors induced the long and tortuous high-energy pathways,which resulted in ultimately improved fracture *** discovered microstructural toughening mechanisms can serve as a reference for future studies involving titanium alloys,offering insights on how to enhance fracture toughness by achieving similar characteristics.

关键词： Direct energy deposition Ti-6Al-4V-1Mo Tensile properties Fracture toughness Crack propagation

Enhanced red luminescence of Ca_(3.Si_(2.x)M_(x)O_(7):Eu^(3.)(M=Al,P)phosphors via partial substitution of Si^(4+) for applications in white light-emitting diodes

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Rare Metals 2024年第2期43卷 736-748页

作者： Yu-Hao Ma Xi Gao Wen-Tao zhang Zhen-Rui Yang zhou {2. Chen Qu College of Materials and Chemistry and Chemical Engineering Chengdu University of TechnologyChengdu610059China State key laboratory of Geohazard Prevention and Geoenvironment Protection Chengdu University of TechnologyChengdu610059China International Advanced energy Science Research and education Center Graduate School of Energy ScienceKyoto UniversityYoshida-HonmachiKyoto606-8501Japan

A red-emitting phosphor Ca_(2.91)Si_(2.O_(7):0.09Eu^(3.) with partial Al^(3.)/P^(5+) substitution on Si^(4+) was synthesized via a simple solid-state method,and the effects of the introduction of the M^(3./5+)(M=Al,P)ions on the crystal structure and photoluminescence performance of Ca_(2.91)Si_(2.x)M_(x)O_(7):0.09Eu^(3.) phosphors were *** X-ray diffraction(XRD),energy-dispersive X-ray spectroscopy(EDS),and X-ray photoelectron spectroscopy(XPS)results revealed that the structure of Ca_(3.Si_(2.O_(7) remained the same after the introduction of Al^(3.) and P^(5+) *** characteristic emission of Eu^(3.)-doped Ca_(3.Si_(2.x)M_(x)O_(7) phosphors exhibited two main peaks at 617 nm(red)and 593.nm(orange)under excitation at 3.4 nm,which originated from the^(5)D_(0)→^(7)F_(2.and^(5)D_(0)→^(7)F_(1) electron transitions of Eu^(3.) *** the partial substitution of Al^(3.) and P^(5+),the red emission intensities of the Ca_(2.91)Si_(2.O_(7):0.09Eu^(3.) phosphors were significantly enhanced by 1.88-and 1.42.fold,respectively,which is attributed to the crystal-field effect around Eu^(3.).Meanwhile,the luminescence intensities of the Ca_(2.91)Si_(1.96)Al_(0.04)O_(7):0.09Eu^(3.) and Ca_(2.91)Si_(1.94)P_(0.06)O_(7):0.09Eu^(3.) phosphors at 2.0℃ were 79.3.%and 77.53.of those at 3.°C,respectively,indicating their excellent thermal ***,the as-prepared Ca_(2.91)Si_(1.96)Al_(0.04)O_(7):0.09Eu^(3.)and Ca_(2.91)Si_(1.94)P_(0.06)O_(7):0.09Eu^(3.) red-emitting phosphors were combined with a near-ultraviolet chip of 3.5 nm to fabricate red-light-emitting diode(LED)and white(w)-LED devices with excellent chromaticity *** summary,Al^(3.)/P^(5+)-substituted Ca_(2.91)Si_(2.O_(7):0.09Eu^(3.) can serve as red-emitting phosphors for applications in w-LEDs.

关键词： Ca_(3.Si_(2.O_(7) Red-emitting phosphor Structure substitution Luminescence enhancement Crystal-field effect White light-emitting diode

Phase reconfiguration of heterogeneous CoFeS/CoNiS nanoparticles for superior battery-type supercapacitors

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Journal of energy Chemistry 2024年第9期96卷 217-225页

作者： Lina Ma Fan Li Min zhou Jidong Dong Hao Luo Wei zhang Wenchao {2. Xinliang Li Zaixing Jiang Yudong Huang College of Chemistry and Chemical Engineering Qingdao UniversityQingdao 266071ShandongChina School of Materials Science and Engineering Xiamen University of TechnologyXiamen 361024FujianChina Co-Innovation Center of Efficient Processing and Utilization of Forest Resources College of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037JiangusChina key laboratory of Material {2. Ministry of EducationSchool of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052HenanChina MIIT key laboratory of Critical Materials {2. for New {3. Conversion and Storage State Key Laboratory of Urban Water Resource and EnvironmentSchool of Chemistry and Chemical EngineeringHarbin Institute of TechnologyHarbin 150001HeilongjiangChina Material Science and Engineering College Northeast Forestry UniversityHarbin 150040HeilongjiangChina

Developing advanced battery-type materials with abundant active sites,high conductivity,versatile morphologies,and hierarchically porous structures is crucial for realizing high-quality hybrid ***,heterogeneous FeS@NiS is synthesized by cationic Co doping via surface-structure *** density functional theory(DFT)theoretical calculations are firstly performed to predict the advantages of Co dopant by improving the OH^(−)adsorption properties and adjusting electronic structure,benefiting ions/electron *** dynamic surface evolution is further explored which demonstrates that CoFeS@CoNiS could be quickly reconstructed to Ni(Co)Fe_(2.O_(4)during the charging process,while the unstable structure of the amorphous Ni(Co)Fe_(2.O_(4)results in partial conversion to Ni/Co/FeOOH at high potentials,which contributes to the more reactive active site and good structural ***,the free-standing electrode reveals excellent electrochemical performance with a superior capacity(3.5.6 mA h g^(−1),2.84 F g^(−1))at 3.A g^(−1).Furthermore,the as-fabricated device shows a quality {3. density of 78.1 W h kg^(−1)at a power density of 750 W kg^(−1)and excellent cycle life of 92.1%capacitance retention after 5000 *** work offers a facile strategy to construct versatile morphological structures using electrochemical activation and holds promising applications in {3.-related fields.

关键词： In-situ reconfiguration Heterogeneous design Battery-type supercapacitors Superior performance Sulphide

Constructing efficient bacterial cell factories to enable one-carbon utilization based on quantitative biology:A review

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Quantitative Biology 2024年第1期12卷 1-14页

作者： Yazhen Song Chenxi Feng Difei zhou Zengxin Ma Lian He Cong zhang Guihong Yu Yan {2. Song Yang Xinhui Xing School of Life Sciences Shandong Province Key Laboratory of Applied Mycologyand Qingdao International Center on Microbes Utilizing BiogasQingdao AgriculturalUniversityQingdaoChina Department of Chemical Engineering University of WashingtonSeattleWashingtonUSA key laboratory of Systems Bioengineering Ministry of EducationTianjin UniversityTianjinChina key laboratory of Industrial Biocatalysis Ministry of EducationDepartment of Chemical EngineeringTsinghua UniversityBeijingChina Center for Synthetic and Systems Biology Tsinghua UniversityBeijingChina institute of Biopharmaceutical and Health Engineering Tsinghua Shenzhen International Graduate Schooland Insttute of Biomedical Health Technology and EngineeringShenzhen Bay LaboratoryShenzhenChina

Developing methylotrophic cell factories that can efficiently catalyze organic one-carbon(C1)feedstocks derived from electrocatalytic reduction of carbon dioxide into bio-based chemicals and biofuels is of strategic significance for building a carbon-neutral,sustainable economic and industrial *** the rapid advancement of RNA sequencing technology and mass spectrometer analysis,researchers have used these quantitative microbiology methods extensively,especially isotope-based metabolic flux analysis,to study the metabolic processes initiating from C1 feedstocks in natural C1-utilizing bacteria and synthetic C1 *** paper reviews the use of advanced quantitative analysis in recent years to understand the metabolic network and basic principles in the metabolism of natural C1-utilizing bacteria grown on methane,methanol,or *** acquired knowledge serves as a guide to rewire the central methylotrophic metabolism of natural C1-utilizing bacteria to improve the carbon conversion efficiency,and to engineer non-C1-utilizing bacteria into synthetic strains that can use C1 feedstocks as the sole carbon and energy *** progresses ultimately enhance the design and construction of highly efficient C1-based cell factories to synthesize diverse high value-added *** integration of quantitative biology and synthetic biology will advance the iterative cycle of understand–design–build–testing–learning to enhance C1-based biomanufacturing in the future.

关键词： ^(13.C-metabolic flux analysis methylotrophic cell factories one-carbon feedstock quantitative biology

The Porous Nanocarbons with Polynuclear Aromatic Cores

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CCS Chemistry 2024年第10期6卷 2427-2438页

作者： Chenxi zhou Ruoning Li Yan Chen Xinyue Liu Haisong zhao Xue-Qing Yang Zhongjie Ren Dong Wang zhaohui Wang Lei {3. beijing Advanced Innovation Center for Soft Matter Science and Engineering State Key Lab of Organic-Inorganic CompositesBeijing University of Chemical TechnologyBeijing 100029 CAS key laboratory of Molecular Nanostructure and Nano{2. CAS Research/Education Center for Excellence in Molecular SciencesBeijing National Laboratory for Molecular Sciences(BNLMS)Institute of ChemistryChinese Academy of SciencesBeijing 100190 key laboratory of Organic Optoelectronics and Molecular Engineering Department of ChemistryTsinghua UniversityBeijing 100084

Three porous nanocarbons,1–3.that comprise pyrene,corannulene,and coronene cores encircled by cyclo-meta-phenylene(CMP)interconnections,have been synthesized and *** interconnected CMPs caused different curvatures of the cores and imparted high solubility,large bathochromic shift,strong fluorescence,and low reduction potential to the *** solution,these porous nanocarbons existed as a complex mixture of dynamic processes that certainly influenced one another within any single molecule,leading to a set of rather simple proton nuclear magnetic resonance(^(1)H NMR)*** crystal X-ray diffraction and computational minimum energy analysis revealed the boatand saddle-like conformations of 1–3.in the solid state,significantly deviating from their conformations on the Au(111)***,both 1 and 2.could form {2. complexes with C_(60),accompanied by adaptive geometry *** addition,1 served as a sky-blue emitter for an organic light-emitting diode(OLED).This work gives access and insights into a model system consisting of porous nanocarbons with intriguing supramolecular and optoelectronic properties.

关键词： porous nanocarbon cyclophenylenes aromatic core structural dynamics crystal packing

Comparative Study of Intrachain versus Interchain Cross-linking on the Mechanical,Thermal and Dielectric Properties of Low-k Polyimide

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Chinese Journal of Polymer Science 2024年第11期 1824-1834页

作者： Wan-Jing zhao Yi-zhang Tong Pei-Pei Zeng Yang-Sheng {2. Xian-Wu Cao Wei Wu National Engineering Research Center of Novel Equipment for Polymer Processing Key Laboratory of Polymer Processing Engineering of Ministry of EducationGuangdong Provincial Key Laboratory of Technique and Equipment for Macromolecular Advanced Manufacturing School of Mechanical and Automotive Engineering South China University of Technology Guangdong Provincial key laboratory of Distributed {2. Systems Guangdong Provincial Engineering Research Center of Distributed Energy SystemsDongguan University of Technology Engineering Center for Superlubricity Jihua Laboratory

Polyimide (PI) is widely used in high-frequency communication technology due to its exceptional comprehensive ***,traditional PI has a relatively elevated dielectric constant and dielectric ***,the different cross-linked structures were introduced in PI matrix and conducted a detailed discussion on the influence of cross-linking agent content and cross-linking structure type on the overall performance of PI *** comparison to the dielectric constant of 2.9 of neat PI,PI with an interchain cross-linking structure containing 2.wt%1,3.5-tris(4-aminophenyl)benzene (TAPB)(interchain-PI-2. exhibited the reduced dielectric constant of 2.55 at 1 *** PI films with intrachain crosslinking structure containing 2.wt%TAPB (intrachain-PI-2. exhibited the lowest dielectric constant of 2.35 and the minimum dielectric loss of0.0075 at 1 *** was due to the more entanglement junctions of intrachain-PI resulting in decreased carrier *** thermal expansion coefficients of both interchain-PI and intrachain-PI films were effectively ***,in contrast to interchain-PI films,the intrachain-PI films maintained colorlessness and transparency as the cross-linking agent content *** work compared the effects of two different cross-linked structures on the performance of PI films and provided a feasible way to obtain low-k PI films with excellent comprehensive performance for 5G applications.

关键词：

10B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

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nuclear Science and Techniques 2024年第8期35卷 58-68页

作者： qiang Li Li‑Jiao Wang Jing‑Yu Tang Xiang‑Biao Qiu Zhen Chen Mao‑Yuan zhao Chang‑Jun Ning Kai Pan Wei Xu Tao Li Su‑Peng Lu Han Yi Rui‑Rui Fan Chang‑Qing Feng Rong {2. Xiao‑Yang Sun Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao Ping Cao Qi‑Ping Chen Yong‑Hao Chen Zeng‑Qi Cui An‑Chuan Fan Fan‑Zhen Feng Min‑Hao Gu Chang‑Cai Han Zi‑Jie Han Guo‑Zhu He Yong‑Cheng He Yang Hong Yi‑Wei Hu Han‑Xiong Huang Wei Jiang Zhi‑Jie Jiang Zheng‑Yao Jin Ling Kang Bo Li Gong Li Xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Yi‑Na Liu Guang‑Yuan Luan Jie Ren Zhi‑{3. Ren Xi‑Chao Ruan zhao‑Hui Song Kang Sun Zhi‑Xin Tan Sheng‑Da Tang Jin‑Cheng Wang Peng‑Cheng Wang zhao‑Hui Wang Zhong‑Wei Wen Xiao‑Guang Wu Xuan Wu Cong Xia Yong‑Ji Yu Guo‑Hui {2. Hang‑Chang {2. Lin‑Hao {2. Qi‑Wei {2. Xian‑Peng {2. Yu‑Liang {2. Yue {2. Zhi‑Yong {2. Zhi‑Hao {3. Ke‑Jun Zhu Chong Zou institute of High energy {2. Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State key laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future School Dongguan 523808China School of nuclear Science and technology University of Science and Technology of ChinaHefei 230027China State key laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China North Night Vision Science and technology(Nanjing)Research institute Co.Ltd Nanjing 211106China Department of Modern physics University of Science and Technology of ChinaHefei 230026China State key laboratory of {2. {3. and technology School of PhysicsPeking UniversityBeijing 100871China institute of Modern physics Fudan UniversityShanghai 200433China key laboratory of {2. Data China Institute of Atomic EnergyBeijing 102413China china Academy of Engineering physics Institute of Nuclear Physics and ChemistryMianyang 621900China USTC archaeometry lab University of Science and Technology of ChinaHefei 230026China Northwest institute of nuclear {2. Xi’an 710024China university of Chinese Academy of Sciences Beijing 100049China china Shipbuilding Trading Co. LtdBeijing 100044China

Neutron resonance imaging(NRI)has recently emerged as an appealing technique for neutron *** complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and ***,the progression of NRI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above *** white neutron source(Back-n)at the{2. Spallation Neutron Source(CSNS)provides favorable {3. conditions for the development of the NRI technique over a wide neutron energy range from eV to ***-sensitive microchannel plates(MCP)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low *** this study,we report the development of a 10B-doped MCP detector,along with its associated electronics,data processing system,and NRI experiments at the *** heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be *** particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关键词： Neutron resonance imaging 10B doped MCP detector White neutron source Sample nuclide identification

Probing dark matter particles from evaporating primordial black holes via electron scattering in the CDEX-10 experiment

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Science china(physics,Mechanics & Astronomy) 2024年第10期67卷 83-91页

作者： Zhenhua zhang Litao Yang Qian Yue Kejun Kang Yuanjing Li Haipeng An Greeshma C. Jianping Chang Yunhua Chen Jianping Cheng Wenhan Dai Zhi Deng Changhao Fang Xinping Geng Hui Gong Qiuju Guo Tao Guo Xuyuan Guo Li He Shengming He Jinwei Hu Hanxiong Huang Tuchen Huang Lin Jiang S.Karmakar Haubin Li Hanyu Li Jianmin Li Jin Li Qianyun Li Renmingjie Li Xueqian Li Yulan Li Yifan Liang Bin Liao FongKay Lin ShinTed Lin Jiaxuan Liu Shukui Liu Yandong Liu Yu Liu Yuanyuan Liu Hao Ma Yucai Mao Qiyuan Nie Jinhua Ning Hui Pan Ningchun Qi Jie Ren Xichao Ruan Monoj Kumar Singh Tianxi Sun Changjian Tang Yang Tian Guangfu Wang Junzheng Wang Li Wang Qing Wang Yufeng Wang Yunxiang Wang Henry Tsz-King Wong Shiyong Wu Yucheng Wu Haoyang Xing Rui Xu Yin Xu Tao Xue Yulu Yan Nan Yi Chunxu Yu Haijun Yu Jianfeng Yue Ming Zeng Zhi Zeng Bingtao zhang {2. zhang Lei zhang Zhenyu zhang Jizhong zhao Kangkang zhao Minggang zhao Jifang zhou Zuying zhou Jingjun Zhu CDEX Collaboration key laboratory of Particle and Radiation Imaging({2. of {3.)and Department of Engineering physics Tsinghua UniversityBeijing 100084China Department of physics Tsinghua UniversityBeijing 100084China institute of physics Academia SinicaTaipei 11529China NUCTECH Company Beijing 100084China YaLong River Hydropower Development Company Chengdu 610051China College of nuclear Science and technology Beijing Normal UniversityBeijing 100875China College of physics Sichuan UniversityChengdu 610065China School of physics Peking UniversityBeijing 100871China Department of nuclear physics China Institute of Atomic EnergyBeijing 102413China Sino-French institute of nuclear and {2. Sun Yet-sen UniversityZhuhai 519082China School of physics Nankai UniversityTianjin 300071China Department of physics Banaras Hindu UniversityVaranasi 221005India Department of physics Beijing Normal UniversityBeijing 100875China 不详

Dark matter(DM)is a major constituent of the ***,no definite evidence of DM particles(denoted as“χ”)has been found in DM direct detection(DD)experiments to *** is a novel concept of detectingχfrom evaporating primordial black holes(PBHs).We search forχemitted from PBHs by investigating their interaction with target *** examined PBH masses range from 1×10^(15)to 7×10^(16)g under the current limits of PBH abundance *** 2.5.4 kg·day data obtained from the CDEX-10 experiment conducted in the china Jinping Underground laboratory,we exclude theχ-electron(χ-e)elastic-scattering cross sectionσ_(χe)~5×10^(-2.)cm^(2.forχwith a mass■keV from our *** the higher radiation background but lower {2. threshold(160 eV),CDEX-10 fills a part of the gap in the previous ***(m_(χ),σ_(χe))can be determined in the future,DD experiments are expected to impose strong constraints on fPBHfor large MPBHs.

关键词： CDEX primordial black hole light dark matter particle dark matter-electron scattering high purity germanium detector