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Application of oblique photogrammetry technique in geological hazard identification and decision management

Earthquake Research Advances 2024年第3期4卷 34-41页

作者： Min Tang Xi Mei Yanna Li Chen Chen Xiuju Liu Heng Lu China Railway Eryuan Engineering Group CO.LTD Chengdu610031China School of Environment and Resource Southwest University of Science and TechnologyMianyang621000China State Key Laboratory of Hydraulics and Mountain River Engineering Sichuan UniversityChengdu610065China College of Hydraulic and Hydroelectric Engineering Sichuan UniversityChengdu610065China Chengdu Planning information Technic center Chengdu610042China

With the continuous development of the oblique photography technique, it has been used more and more widely in the field of geological disasters. It can quickly obtain the three-dimensional(3D) real scene model of dangerous mountainous areas under the premise of ensuring the safety of personnel while restoring the real geographic information as much as possible. However, geological disaster areas are often accompanied by many adverse factors such as cliffs and dense vegetation. Based on this, the paper introduced the flight line design of oblique photogrammetry, analyzed the multi-platform data fusion processing, studied the multi-period data dynamic evaluation technology and proposed the application methods of data acquisition, early warning, disaster assessment and decision management suitable for geological disaster identification through the analysis of actual cases, which will help geologists to plan and control geological work more scientifically and rationally, improve work efficiency and reduce the potential personnel safety hazards in the process of geological survey, to offer technical support to the application of oblique photogrammetry in geological disaster identification and decision making and provide the scientific basis for personal and property safety protection and later-stage geological disaster management in disaster areas.

关键词： Oblique photography technique Three-dimensional models Geological hazards Data integration Disaster assessment Decision management

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Organic stoichiometric cocrystals with a subtle balance of charge-transfer degree and molecular stacking towards high-efficiency NIR photothermal conversion

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Chinese Chemical Letters 2024年第10期35卷 180-186页

作者： Jieqiong Xu Wenbin Chen Shengkai Li Qian Chen Tao Wang Yadong Shi Shengyong Deng Mingde Li Peifa Wei Zhuo Chen Institutes of Physical Science and information Technology Key Laboratory of Structure and Functional Regulation of Hybrid Materials of Ministry of EducationAnhui Graphene Engineering LaboratoryAnhui UniversityHefei 230601China Molecular Science and Biomedicine Laboratory(MBL).State Key Laboratory of Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringCollege of BiologyAptamer Engineering Center of Hunan ProvinceHunan UniversityChangsha 410082China Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong Province Shantou UniversityShantou515063China

Charge-transfer(CT)stoichiometric cocrystals are promising choice of organic materials for unveiling the structure-property ***,due to the contradiction between large CT degree required for strong NIR absorption and flexible molecular stacking,construction of stoichiomorphism-based cocystals with near-infrared(NIR)photothermal property remains ***,the first example of stoichiomorphism-based photothermal cocrystals were accomplished through the adaptive assembly of 3,3,5,5-tetramethylbenzidine(TMB)donor and 1,2,4,5-tetracyanobenzene(TCNB)*** selective cocrystallization could be controlled by varying the donor-acceptor stoichiometries via a surfactantassisted method,resulting in two cocrystals with 1:1(T1C1)and 1:2(T2C1)*** absorbance intensity of T1C1 at 808 nm was nearly twice that of T2C1,while the photothermal conversion efficiency(PCE)of the former was 60.3%±0.6%,approximately 80%of that for the latter(75.5%±2.6%),which might be caused by the different intermolecular interactions in distinct molecular stacking ***,both excellent PCEs of stoichiometric cocrystals were attributed to the nonradiative transition process,including internal conversion and charge dissociation processes,as elucidated by femtosecond transient absorption spectroscopy ***,T1C1 was used as an NIR heater for preparing agarose-based photothermal hydrogel,showing great potential for light-controlled in-situ *** strategy of balancing the CT degree and molecular packing orientation not only uncovered the relationship between stoichiometric stacking and photothermal property,but also provided an opportunity to develop advanced organic optoelectronic materials.

关键词： Charge-transfer cocrystal Stoichiometric stacking Crystal growth Photothermal conversion In-situ gelation

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Precise sensitivity recognizing,privacy preserving,knowledge graph-based method for trajectory data publication

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Frontiers of Computer Science 2022年第4期16卷 219-221页

作者： Xianxian Li Bing Cai Li-e Wang Lei Lei Guangxi Key Lab of Multi-source information Mining and Security Guangxi Normal UniversityGuilin541004China College of Computer Science and information Engineering Guangxi Normal UniversityGuilin541004China Nanning Tiancheng Zhiyuan intellectual property Service Co.Ltd. Nanning530000China

1Introduction The existing privacy protection methods of trajectory data publication have two ***,existing methods[1-3]cannot resist attribute link attacks *** practical scenarios,it is necessary to integrate data from a variety of fields for data analysis,such as cross-domain *** usually need to obtain the user attributes outside of the trajectory data as background knowledge.

关键词： knowledge outside preserving

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Broadband light emitting from multilayer-stacked InAs/GaAs quantum dots

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Chinese Physics B 2012年第11期21卷 408-411页

作者：刘宁金鹏王占国 Key Laboratory of Semiconductor Materials Science and Beijing Key Laboratory of Low-Dimensional Semiconductor Materials and Devices Institute of SemiconductorsChinese Academy of Sciences Electricity Examination Department Patent Examination Cooperation Center of the Patent OfficeState Intellectual Property Office

We report the effect of the GaAs spacer layer thickness on the photoluminescence （PL） spectral bandwidth of InAs/GaAs self-assembled quantum dots （QDs）. A PL spectral bandwidth of 158 nm is achieved with a five-layer stack of InAs QDs which has a 11-nm thick GaAs spacer layer. We investigate the optical and the structurM properties of the multilayer-stacked InAs/GaAs QDs with different GaAs spacer layer thicknesses. The results show that the spacer thickness is a key parameter affecting the multi-stacked InAs/GaAs QDs for wide-spectrum emission.

关键词： quantum dots broudband spectrum superluminescent diode

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Interfacial defect engineering and photocatalysis properties of hBN/MX_(2)(M=Mo,W,and X=S,Se)heterostructures

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Chinese Physics B 2022年第6期31卷 625-634页

作者： Zhi-Hai Sun Jia-Xi Liu Ying Zhang Zi-Yuan Li Le-Yu Peng Peng-Ru Huang Yong-Jin Zou Fen Xu Li-Xian Sun School of Material Science and Engineering Guilin University of Electronic TechnologyGuangxi Key Laboratory of Information MaterialsGuangxi Collaborative Innovation Center of Structure and Property for New Energy and MaterialsGuilin 541004China

Van der Waals(VDW)heterostructures have attracted significant research interest due to their tunable interfacial properties and potential applications in many areas such as electronics,optoelectronic,and *** this work,the influences of interfacial defects on the electronic structures and photocatalytic properties of hBN/MX_(2)(M=Mo,W,and X=S,Se)are studied using density functional theory *** results reveal that the band alignment of hBN/MX_(2) can be adjusted by introducing vacancies and atomic *** type-Ⅰband alignment of the host structure is maintained in the heterostructure with n-type doping in the hBN ***,the band alignment changed into the type-Ⅱheterostructrue due to V_(B) defect and p-type doping is introduced into the hBN *** can conduce to the separation of photo-generated electron-hole pairs at the interfaces,which is highly desired for heterostructure *** addition,two Z-type heterostructures including h BN(BeB)/MoS_(2),hBN(Be_(B))/MoSe_(2),and hBN(V_(N))/MoSe_(2)are achieved,showing the decreasing of band gap and ideal redox potential for water *** results reveal the possibility of engineering the interfacial and photocatalysis properties of hBN/MX_(2) heterostructures via interfacial defects.

关键词： hBN/MX_(2)heterostructures interfacial defect electronic state photocatalytic properties

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The Development of China's intellectual property Law over the Past Forty Years of Reform and Opening Up

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Contemporary Social Sciences 2018年第5期3卷 95-117页

作者： Wu Handong Liu Xin Wu Lingwei center for Studies of intellectual property Rights Zhongnan University of Economics and Law

Over the past forty years of reform and opening-up,China has experienced vigorous development of intellectual property *** this period,it has successively enacted and promulgated a range of basic laws,among which are the Trademark Law of the PRC,the Patent Law of the PRC,the Copyright Law of the PRC and the AntiUnfair Competition Law of the PRC; and many other related laws and regulations,such as the Regulations of the PRC on the Protection of New Varieties of Plants,Regulations on Protection of Integrated Circuit Layout Design and Provisions on the Protection of Geographical Indication *** this way,China has gradually established a relatively sound and complete intellectual property law *** the beginning of reform and opening-up,China's practice of intellectual property legislation has adhered to its institutional positioning of being subject to its civil law,safeguarding effective market competition and ensuring the implementation of national *** has followed the development rules of relying on scientific & technological progress,targeting economic and social development and adjusting public policies for guiding *** to this,China has formed multiple coordinating mechanisms to settle conflicts of interests between the protection of intellectual property rights(IPR) and the protection of basic human rights,public health,genetic resources,traditional knowledge,*** the future development of China's intellectual property law,a trend of codification will emerge,which will primarily "include intellectual property law in the civil code" or "enact an intellectual property code." The modernization of China's intellectual property Law will be manifested in the changes of the defining standard of intellectual property Rights(IPR)subjects,the utilization patterns of IPR objects and the protection models of intellectual *** internationalization will center on creating a new order for international IPR protection.

关键词： Reform and opening-up intellectual property law codification modernization internationalization

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Engineering strong spin-frustration at the surface of three-dimensional graphene

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Science Bulletin 2024年第18期69卷 2816-2819页

作者： Wenjing Li Ken Chen Menglei Li Huiying Gao Jize Zhao Fawei Zheng Wenhui Duan center for Quantum Physics Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurement(MOE)School of PhysicsBeijing Institute of TechnologyBeijing 100081China Beijing Key Lab of Nanophotonics&Ultrafine Optoelectronic Systems School of PhysicsBeijing Institute of TechnologyBeijing 100081China School of Physical Science and Technology Key Laboratory of Quantum Theory and Applications of MOELanzhou UniversityLanzhou 730000China Lanzhou center for Theoretical Physics Key Laboratory of Theoretical Physics of Gansu ProvinceLanzhou UniversityLanzhou 730000China Department of Physics Capital Normal UniversityBeijing 100048China State Key Laboratory of Low Dimensional Quantum Physics Department of PhysicsTsinghua UniversityBeijing 100084China Institute for Advanced Study Tsinghua UniversityBeijing 100084China Frontier Science center for Quantum information Beijing 100084China Beijing Academy of Quantum information Sciences Beijing 100193China

Since the first successful fabrication in 2004[1],graphene has received tremendous attention due to its extremely simple atomic structure and alluring physical *** example,its massless low energy excitations have a linear dispersion and thus its transport property is governed by Dirac equation instead of Schr?dinger *** special electronic structures suppress the intra-valley and inter-valley backscatterings,leading to the half-integer and fractional quantum Hall effect[2]under magnetic field and the relativistic quantum tunneling described by the Klein paradox[3].

关键词： properties. equation. quantum

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Robust measurement of orbital angular momentum of a partially coherent vortex beam under amplitude and phase perturbations

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Opto-Electronic Science 2024年第1期3卷 1-12页

作者： Zhao Zhang Gaoyuan Li Yonglei Liu Haiyun Wang Bernhard J.Hoenders Chunhao Liang Yangjian Cai Jun Zeng Shandong Provincial Engineering and Technical center of Light Manipulations&Shandong Provincial Key Laboratory of Optics and Photonic Device School of Physics and ElectronicsShandong Normal UniversityJinan 250358China Collaborative Innovation center of Light Manipulation and Applications Shandong Normal UniversityJinan 250358China School of Physical Science and Technology Soochow UniversitySuzhou 215006China School of Physical Science and Technology Suzhou University of Science and TechnologySuzhou 215009China Zernike Institute for Advanced Materials University of GroningenNijenborgh 4NL-9747 AG GroningenThe Netherlands Joint Research center of Light Manipulation Science and Photonic Integrated Chip of East China Normal University and Shandong Normal University East China Normal UniversityShanghai 200241China

The ability to overcome the negative effects,induced by obstacles and turbulent atmosphere,is a core challenge of long-distance information transmission,and it is of great significance in free-space optical *** spatial-coherence structure,that characterizes partially coherent fields,provides a new degree of freedom for carrying ***,due to the influence of the complex transmission environment,the spatial-coherence structure is severely damaged during the propagation path,which undoubtedly limits its ability to transmit ***,we realize the robust far-field orbital angular momentum(OAM)transmission and detection by modulating the spatial-coherence structure of a partially coherent vortex beam with the help of the *** cross-phase enables the OAM information,quantified by the topological charge,hidden in the spatial-coherence structure can be stably transmitted to the far field and can resist the influence of obstructions and turbulence within the communication *** is due to the self-reconstruction property of the spatial-coherence structure embedded with the *** demonstrate experimentally that the topological charge information can be recognized well by measuring the spatial-coherence structure in the far field,exhibiting a set of distinct and separated dark rings even under amplitude and phase *** findings open a door for robust optical signal transmission through the complex environment and may find application in optical communication through a turbulent atmosphere.

关键词： degree of coherence orbital angular momentum cross-phase topological charge information transmission

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Video Sharing Sites’ Fault Identification in Indirect Copyright Infringements

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Contemporary Social Sciences 2019年第3期4卷 109-127页

作者： Ma Yide Peng Xue the center for Studies of intellectual property Rights of Zhongnan University of Economics and Law

Under the guidance of “technical value theory” taking both the natural and social attributes of technique into consideration, the fault in indirect infringements of copyrights by video sharing websites includes two forms:“intention” and “negligence”. As an objective criterion of negligence identification, the duty of care, is the natural extension of the security obligation in cyberspace;for a video sharing website, the foreseeable obligation of infringements is the main content of the duty of care;and it is highlighted that the degree of the duty of care hinges on different factors. For the form of liability, a video sharing website faces the difficulties of excessive costs in debt recovery after assuming the complementary liability, joint and several liability is thus alienated as an aggravating responsibility. However, according to the causative potency between the fault of a video sharing website and the infringement results, the several/shared liability can avoid the overburden to a video sharing website and distribute the risks of inadequate compensation based on the principle of fairness.

关键词： video sharing website should know technical value theory duty of care several/ shared liability

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A Designated Query Protocol for Serverless Mobile RFID Systems with Reader and Tag Privacy

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Tsinghua Science and Technology 2012年第5期17卷 521-536页

作者： Jiwhan Lim Sangjin Kim Heekuck Oh Donghyun Kim information & Communications Examination Bureau Korean Intellectual Property Office School of Computer Science & Engineering Korea University of Technology & Education Department of Computer Science and Engineering Hanyang University Department of Mathematics & Computer Science North Carolina Central University

Recently, a new type of Radio Frequency IDentification （RFID） system with mobile readers is introduced. In such a system, it is more desirable for mobile readers to identify tags without a back-end server, and thus it is frequently referred as a serverless mobile RFID system. In this paper, we formalize a serverless mobile RFID system model and propose a new encryption-based system that preserves the privacy of both tags and readers in the model. In addition, we define a new adversary model for the system model and show the security of the proposed system. Throughout comparisons between ours and the other alternatives, we show that our proposed system provides a stronger reader privacy and robustness against a reader forgery attack than the competitors.

关键词： Radio Frequency IDentification (RFID) serverless designated query protocol reader privacyencryption-based

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