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3D Model Encryption Algorithm by Parallel Bidirectional Diffusion and 1D Map with Sin and Logistic Coupling

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Computer Systems Science & Engineering 2023年第11期47卷 1819-1838页

作者： yongsheng hu School of Information Engineering Binzhou UniversityBinzhou256603China

3D models are essential in virtual reality,game development,architecture design,engineering drawing,medicine,and *** to digital images,3D models can provide more realistic visual *** recent years,significant progress has been made in the field of digital image encryption,and researchers have developed new algorithms that are more secure and ***,there needs to be more research on 3D model *** paper proposes a new 3D model encryption algorithm,called the 1D map with sin and logistic coupling(1D-MWSLC),because existing digital image encryption algorithms cannot be directly applied to 3D ***,this paper introduce 1D-MWSLC,which has a wider range of parameters compared to traditional 1D chaotic *** the parameter exceeds a specific range,the chaotic phenomenon does not ***,1D-MWSLC has two control parameters,which increases the cryptosystem’s parameter ***,1D-MWSLC generates keystreams for confusion and *** the confusion stage,this paper use random confusion,and the keystream generates an index matrix that confuses the integer and decimal parts of the 3D model *** the diffusion stage,this paper use parallel bidirectional diffusion to simultaneously diffuse the integer parts of the three coordinates of the 3D ***,this paper verify the proposed algorithm through statistical analysis,and experimental results demonstrate that the proposed 3D model encryption algorithm has robust security.

关键词： Parallel bidirectional diffusion chaos theory 1D-MWSLC image encryption information security

Light gain amplification in microcavity organic semiconductor laser diodes under electrical pumping

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Science Bulletin 2017年第24期62卷 1637-1638页

作者： Jie Lin yongsheng hu Ying Lv Xiaoyang Guo Xingyuan Liu State Key Laboratory of Luminescence and Applications Changchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences Changchun 130032 China

Organic semiconductor is one of the most promising luminescent and lasing materials that can be chemically synthesized with a controllable performance and possess high cross-section of stimulated emission . Organic semiconductor laser diodes （OSLDs） can be prepared by simple processing technologies and integrated easily with other optoelectronic devices. As a result, OSLDs would have appealing applications in low cost, compact, flexible and tunable lasers with spectral region from ultraviolet to near infrared . Although lasing has been widely demonstrated under optical pumping, electrically pumped OSLDs are rather difficult to realize because the expected high threshold current is hard to reach in low electrical conductivity organic semiconductors and electroluminescence （EL） efficiency is much decreased under high current.

关键词： Light gain amplification under electrical pumping

P2-type Na_(0.6)[Mg(Ⅱ)_(0.3)Mn(Ⅳ)_(0.7)]O_2 as a new model material for anionic redox reaction

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Chinese Chemical Letters 2018年第12期29卷 1791-1794页

作者： Xiaohui Rong Fei Gao Yaxiang Lu Kai Yang yongsheng hu State Key Laboratory of Operation and Control of Renewable Energy and Storage Systems China Electric Power Research Institute Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and Devices Beijing National Laboratory for Condensed Matter Physics Institute of Physics Chinese Academy of Sciences Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of Sciences

A new model material of Na[Mg(Ⅱ)Mn(Ⅳ)]O, with only Mgand Mnin the transition metal layers, is synthesized for the research of anionic redox reaction. The material delivers a capacity of ～130 mAh/g with a long plateau at ～4.2 V in the initial charge profile, indicating anionic redox reaction(ARR) involved during the initial desodiation process. In the following cycles, the reversible capacity can reach a high value of ～210 mAh/g, which is probably derived from the participation of both ARR and Mn/Mnredox couples, further proving the charge compensation from ARR during the initial charge and following cycles. The designed cathode material without Mnhelps avoid the influence of oxygen activity from transition metals, enabling the investigation of ARR without other distractions.

关键词： Na-ion batteries Layered oxide Cathode Anionic redox reaction Na_(0.6)[Mg_(0.3)Mn_(0.7)]O_2

High-efficiency asymmetric diffraction based on PT-antisymmetry in quantum dot molecules

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Chinese Physics B 2022年第1期31卷 267-272页

作者： Guangling Cheng yongsheng hu Wenxue Zhong Aixi Chen Department of Applied Physics East China Jiaotong UniversityNanchang 330013China Department of Physics Zhejiang Sci-Tech UniversityHangzhou 310018China

We present preparation of asymmetric grating with higher diffraction efficiency in quantum dot molecules by combining the tunneling effect and parity-time *** the presence of tunneling between two quantum dots,the system exhibits the striking PT antisymmetry via spatially modulating the driving field and the detuning with respect to the driven *** this reason,the asymmetric grating could be *** results show that the diffraction efficiency can be adjustable via changing the driving intensity,detuning,tunneling strength,and interaction length,and then the high-order diffraction can be *** scheme provides a feasible way to obtain the direction-controlled diffraction grating,which can be helpful for optical information processing and realization of controllable optical self-image.

关键词： asymmetric diffraction grating PT antisymmetry tunneling effect

NASICON-structured Na3.1Zr1.95Mg0.05Si2PO12 solid electrolyte for solid-state sodium batteries

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Rare Metals 2018年第6期37卷 480-487页

作者： Jing Yang HongLi Wan Zhihua Zhang GaoZhan Liu XiaoXiong Xu yongsheng hu Xia-Yin Yao Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences Ningbo 315201 China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory for Renewable Energy Beijing Key Laboratory for New Energy Materials and Devices Institute of PhysicsChinese Academy of Sciences Beijing 100190 China

Using stable inorganic solid electrolyte to replace organic liquid electrolyte could significantly reduce potential safety risks of rechargeable batteries. Na-superionic conductor （NASICON）-structured solid electrolyte is one of the most promising sodium solid electrolytes and can be employed in solid-state sodium batteries. In this work, a NASICON-structured solid electrolyte Na3.1Zr1.95Mg0.05Si2PO12 was synthesized through a facile solid-state reaction, yielding high sodium-ionic conductivity of 1.33 × 10-3 ***^-1 at room temperature. The results indicate that Mg^2＋ is a suitable and economical substitution ion to replace Zr^4＋, and this synthesis route can be scaled up for powder preparation with low cost. In addition to electrolyte material preparation, solid-state batteries with Na3.1Zr1.95Mg0.05Si2PO12 as electrolyte were assembled. A specific capacity of 57.9 mAh·g^-1 is maintained after 100 cycles under a current density of 0.5C rate at room temperature. The favorable cycling performance of the solid-state battery suggests that Na3.1Zr1.95Mg0.05Si2PO12 is an ideal electrolyte candidate for solid-state sodium batteries.

关键词： Solid electrolyte NASICON-type structure Sodium-ionic conductivity Solid-state sodium battery

Chinese Scientists Discover a New Class of Viscoelastic Inorganic Glass(VIGLAS)Electrolytes for Solid-State Batteries

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Bulletin of the Chinese Academy of Sciences 2023年第3期37卷 172-173页

作者： hu yongsheng Institute of Physics

Solid-state batteries,often hailed as the next disruptive battery technology,offer a promising solution to the safety concerns associated with conventional liquid lithium-ion batteries while significantly enhancing energy *** technological advancement holds the potential to revolutionize key industries,including electric vehicles,energy storage,and mobile ***,the practical implementation of solid-state batteries is hindered by several limitations related to interface stability and manufacturing *** instance,organic polymer solid-state batteries demonstrate impressive mechanical stability at the interface,but fall short of desirable chemical *** limitation restricts their energy density,primarily due to compatibility issues with high-voltage *** the other hand,commercially viable inorganic sulfide solid-state batteries,while showing promise,come with the drawback of high manufacturing costs.

关键词： battery Solid interface

Observation of transition from superfluorescence to polariton condensation in CsPbBr3 quantum dots film

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Light(Science & Applications) 2024年第2期13卷 316-324页

作者： Danqun Mao Linqi Chen Zheng Sun Min Zhang Zhe-Yu Shi yongsheng hu Long Zhang Jian Wu Hongxing Dong Wei Xie Hongxing Xu State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200241China Key Laboratory of Materials for High-Power Laser Shanghai Institute of Optics and Fine MechanicsChinese Academy of Sciences201800 ShanghaiChina Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuanShanxi 030006China Chongqing Key Laboratory of Precision Optics Chongqing Institute of East China Normal UniversityChongqing 401121China CAS Center for Excellence in Ultraintense Laser Science Shanghai 201800China School of Physics and Technology Center for Nanoscience and NanotechnologyWuhan UniversityWuhan 430072China

The superfluorescence effect has received extensive attention due to the many-body physics of quantum correlation in dipole gas and the optical applications of ultrafast bright radiation field based on the cooperative quantum ***,we demonstrate not only to observe the superfluorescence effect but also to control the cooperative state of the excitons ensemble by externally applying a regulatory dimension of coupling light fields.A new quasi-particle called cooperative exciton-polariton is revealed in a light-matter hybrid structure of a perovskite quantum dot thin film spin-coated on a Distributed Bragg *** the nonlinear threshold,polaritonic condensation occurs at a nonzero momentum state on the lower polariton branch owning to the vital role of the synchronized *** phase transition from superfluorescence to polariton condensation exhibits typical signatures of a decrease of the linewidth,an increase of the macroscopic coherence as well as an accelerated radiation decay *** findings are promising for opening new potential applications for super-brightness and unconventional coherent light sources and could enable the exploitation of cooperative effects for quantum optics.

关键词： quantum condensation polar

A high-performance rechargeable Li–O_2 battery with quasi-solid-state electrolyte

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Chinese Physics B 2018年第7期27卷 556-560页

作者： Jia-Yue Peng Jie huang Wen-Jun Li Yi Wang Xiqian Yu yongsheng hu Liquan Chen Hong Li Beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China Beijing WeLion New Energy Technology Co. LTDBeijing 102402China Beijing Key Laboratory of Green Reaction Engineering and Technology Department of Chemical EngineeringTsinghua UniversityBeijing 100084China

A novel transparent and soft quasi-solid-state electrolyte （QSSE） was proposed and fabricated, which consists of ionic liquid （PYR14TFSI） and nano-fumed silica. The QSSE demonstrates high ionic conductivity of 4.6× 10-4 S/cm at room temperature and wide electrochemical stability window of over 5 V. The Li-O2 battery using such quasi-solidstate electrolyte exhibits a low charge-discharge overpotential at the first cycle and excellent long-term cyclability over 500 cycles.

关键词： quasi-solid-state electrolyte Li-O2 battery

D-ZENIC:A Scalable Distributed SDN Controller Architecture

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ZTE Communications 2014年第2期12卷 23-27页

作者： yongsheng hu Tian Tian Jun Wang Central R&D Institute of ZTE Corporation

In a software-defined network, a powerful central controller provides a flexible platform for defining network traffic through the use of software. When SDN is used in a large-scale network, the logical central controller comprises multiple physical servers, and multiple controllers must act as one to provide transparent control logic to network applications and devices. The challenge is to minimize the cost of network state distribution. To this end, we propose Distributed ZTE Elastic Network Intelligent Controller （DZENIC）, a network-control platform that supports distributed deployment and linear scale-out. A dedicated component in the DZENIC controller provides a global view of the network topology as well as the distribution of host information. The evaluation shows that balance complexity with scalability, the network state distribution needs to be strictly classified.

关键词： software defined network OpenFlow distributed system scalability ZENIC