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Quantum Key Distribution Using Four-Qubit W State

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Communications in Theoretical Physics 2006年第1X期46卷 65-68页

作者： cao Hai-Jing song He-Shan Department of Physics Dalian University of Technology Dalian 116024 China

A new theoretical quantum key distribution scheme based on entanglement swapping is proposed, where four-qubit symmetric W state functions as quantum channel. It is shown that two legitimate users can secretly share a... 详细信息

关键词： quantum key distribution W state Bell-state measurement security

Advances in cycloaddition and hydroaddition reaction of α -(trifluoromethyl)styrenes without defluorination: An alternative approach to CF_(3) -containing compounds

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Chinese Chemical Letters 2022年第5期33卷 2363-2371页

作者： Yupian Deng Jingjing He song cao Xuhong Qian Shanghai Key Laboratory of Chemical Biology School of PharmacyEast China University of Science and Technology(ECUST)Shanghai 200237China School of Chemistry and Molecular Engineering East China Normal UniversityShanghai 200062China

α-(Trifluoromethyl)styrene and its derivatives have found wide applications in the fields of pharmaceuti-cals,agrochemicals,and advanced *** are also versatile trifluoromethyl-containing building blocks for the preparation of various trifluoromethyl-containing,fluorine-containing or nonfluorinated ***,great efforts have been made to develop diverse reactions for rapidly accessing a wide range of valuable gem–difluoroalkenes and gem–difluoroalkylated compounds via defluorinative re-action or the defluorinative ipso-functionalization reaction ofα-(trifluoromethyl)styrenes,*** contrast,α-(trifluoromethyl)styrenes remain notably underdeveloped with respect to their use in cycload-dition and hydroaddition reaction with retaining of three C–F *** short review herein is aimed to summarize the recent progress on the cycloaddition and hydroaddition reaction including nucleophilic,radical and transition metal-catalyzed addition ofα-(trifluoromethyl)styrenes without accompanying de-fluorination.

关键词： α-(Trifluoromethyl)styrenes Cycloaddition and hydroaddition Nondefluorination CF 3-containing compounds

Strategic Study on the Development of Space Science in China and Proposals for Future Missions

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空间科学学报 2024年第4期44卷 699-703页

作者： WANG Chi song Tingting LI Ming cao song National Space Science Center Chinese Academy of SciencesBeijing 100190

Since 2011,the Chinese Academy of Sciences(CAS)has implemented the Strategic Priority Program on Space Science(SPP).A series of scientific satellites have been developed and launched,such as Dark Matter Particle Explorer(DAMPE),Quantum Experiments at Space Scale(QUESS),Advanced Space-based Solar Observatory(ASO-S),Einstein Probe(EP),and significant scientific outcomes have been *** order to plan the future space science missions in China,CAS has organized the Chinese space science community to conduct medium and long-term development strategy studies,and summarized the major scientific frontiers of space science as“One Black,Two Dark,Three Origins and Five Characterizations”.Five main scientific themes have been identified for China’s future breakthroughs,including the Extreme Universe,Space-Time Ripples,the Panoramic View of the Sun and Earth,the Habitable Planets,and Biological&Physical Science in *** science satellite missions to be implemented before 2030 are proposed accordingly.

关键词： Space science Space missions Space exploration

A real time transmission system of long distance for nuclear logging

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Nuclear Science and Techniques 2011年第6期22卷 366-371页

作者： cao Ping song Kezhu YANG Junfeng State Key Laboratory of Particle Detection and Electronics Anhui Key Laboratory of Physical Electronics Department of Modern Physics University of Science and Technology of China Hefei 230026 China

Some specified chips in traditional Manchester-Ⅱencoding/decoding designs are used to guarantee strictly the stability of the input wave,otherwise the capacity of anti-interference and resilience are degraded *** this paper,a new Manchester-Ⅱencoding/ decoding system is used for nuclear logging by a 7 000 m armoring cable.A thorough hardware wave tracking decoding algorithm is proposed and realized in a FPGA hardware *** on-site measurements show that this transmission system can decode correctly in real time,with a bit error rate of better than 10^(-10).

关键词：传输系统长距离核测井编码/解码曼彻斯特抗干扰能力抗灾能力解码系统

One-pot Three Component Synthesis of Polyfluoroarylated Arylacetates via VNSAr-SNAr Reaction

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Chinese Journal of Chemistry 2012年第12期30卷 2747-2751页

作者： Xiong Yang Wu Jingjing Xiao Senhan cao song Shanghai Key Laboratory of Chemical Biology School of Pharmacy East China University of Science and Technology Shanghai 200237 China School of Chemical and Environmental Engineering Shanghai Institute of Technology Shanghai 201418 China

A series of 2-polyfluoroaryl arylacetates were synthesized by a one-pot three-component VNSAr-SNAr reaction of polyfluoroarenes, ethyl 2-chloropropionate, and ortho-substituted nitrobenzenes.

关键词： 2-polyfluoroaryl arylacetates three-component reaction VNSAr-SNAr reaction functionalization of theC-F bond

Et_(3)N-Catalyzed Cycloaddition Reactions ofα-(Trifluoromethyl)styrenes with 2,2,2-Trifluorodiazoethane to Access Bis(trifluoromethyl)-Substituted Pyrazolines

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Chinese Journal of Chemistry 2021年第2期39卷 301-306页

作者： Chunmei Li Xuxue Zhang Jingjing He Sixue Xu song cao Shanghai Key Laboratory of Chemical Biology School of PharmacyEast China University of Science and TechnologyShanghai200237 China College of Chemistry and Chemical Engineering Qilu Normal UniversityJinanShandong250200 China

A novel and practical method for the synthesis of 3,5-bis(trifluoromethyl)-4,5-dihydro-1H-pyrazoles by [3+2] cycloaddition reactions of α-(trifluoromethyl)styrenes with 2,2,2-trifluorodiazoethane (CF3CHN2) has been developed. The cyclization reaction proceeds smoothly in the presence of a catalytic amount of Et_(3)N, affording a variety of bis(trifluoromethyl)-substituted 2-pyrazolines in good to excellent yields. This method also exhibits a broad substrate scope and tolerates various functional groups.

关键词： Cycloaddition 2,2,2-Trifluorodiazoethane α-(Trifluoromethyl)styrenes Pyrazoline Et_(3)N-catalyzed

Paleogeothermal Reconstruction and Thermal Evolution Modeling of Source Rocks in the Puguang Gas Field, Northeastern Sichuan Basin

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Journal of Earth Science 2016年第5期27卷 796-806页

作者： Chuanqing Zhu Nansheng Qiu Huanyu cao song Rao Shengbiao Hu State Key Laboratory of Petroleum Resources and Prospecting China University of Petroleum College of Geosciences China University of Petroleum Exploration Branch SINOPEC College of Geosciences Yangtze University State Kay Laboratory of Lithospheric Evolution Institute of Geology and Geophysics Chinese Academy of Sciences

The thermal history and organic matter maturity evolution of the source rocks of boreholes in the Puguang gas field were reconstructed. An integrated approach based on vitrinite reflectance and apatite fission track data was used in the reconstruction. Accordingly, the geothermal conditions of gas accumulation were discussed in terms of the geological features of reservoirs in the northeastern Sichuan Basin. The strata reached their maximum burial depth in the Late Cretaceous era and were then uplifted and denuded continuously to the present day. The geothermal gradient and heat flow in the Late Cretaceous era were approximately 30.0 °C/km and 66 mW/m2, respectively, which were both higher than those at present. The tectonothermal evolution from the Late Cretaceous era to the present is characterized by denudation and cooling processes with an erosion thickness of2.7 km. In addition to the Triassic era, the Jurassic era represents an important hydrocarbon generation period for both Silurian and Permian source rocks, and the organic matter maturity of these source rocks entered into a dry gas period after oil generation. The thermal conditions are advantageous to the accumulation of conventional and unconventional gas because the hydrocarbon generation process of the source rocks occurs after the formation of an effective reservoir cap. In particular, the high geothermal gradient and increasing temperature before the denudation in the Late Cretaceous era facilitated the generation of hydrocarbons, and the subsequent cooling process favored its storage.

关键词： paleogeothermal reconstruction apatite fission track vitrinite reflectance thermalevolution of source rocks Puguang gas field.

Progress of Strategic Priority Program on Space Science

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空间科学学报 2016年第5期36卷 600-605页

作者： WU Ji FAN Quanlin cao song National Space Science Center Chinese Academy of Sciences

The most important all-round progress in China's Space Science in recent years is the official go-ahead of Strategic Priority Program(SPP) on Space Science in 2011,which marks China's space science has entered a new *** on Space Science includes 4 satellites(DAMPE,SJ-10,QUESS and HXMT),the Intensive Study of Future Space Science Missions,and the Advanced Research of Space Science Missions and *** is expected that the innovative breakthroughs will be achieved,and the great leaps of related high-technology will be driven through both independent space science missions and international *** implementation of the SPP on Space Science will enable the rapid development of China's space science endeavor,and contribute to the progress of human civilization.

关键词：空间科学规划 HXMT 有效载荷国际合作高新技术科学事业人类文明

In vitro porcine brain tubulin assembly inhibition by water extract from a Chinese medicinal herb,Tripterygium hypoglaucum Hutch

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World Journal of Gastroenterology 2006年第7期12卷 1133-1135页

作者： Zi-Qin Liang Neng cao Zhong-Kui song Xu Wang School of Life Sciences Yunnan Normal University Kunming 650092Yunnan Province China

AIM： To investigate the effect of Tripterygium hyp-oglaucum Hutch （THH） on the assembly and disassembly process of tubulin and its possible mode of action.METHODS： In vitro porcine brain tubulin assembly assay was employed to analyze the inhibitory effects of THH at different concentrations （0.05 μg/L, 0.07 μg/L, 0.09μg/L）. Colchicine （0.0025 mmol/L, 0.0050 mmol/L, 0.0075 mmol/L） was used as a positive control.RESULTS： THH could significantly inhibit the assembly of isolated porcine brain tubulin at all tested concentrations.CONCLUSION： THH is capable of inducing aneuploidy in mammals via tubulin polymerization inhibition pathway and may pose a genetic risk to human beings.

关键词： Tripterygium hypoglaucum (level) Hutch Tubulin assembly-disassembly