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State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization 认领 引用
1
《China Rare Earth Information》 2026年第1期F0002-F0002,共1页
State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization was approved by the Ministry of Science and Technology to be one of the national key laboratories in November 2022.The la... State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization was approved by the Ministry of Science and Technology to be one of the national key laboratories in November 2022.The laboratory was reconstructed based on former State Key Laboratory of Baiyun Obo Rare Earth Resources Researches and Comprehensive Utilization.The key laboratory takes Baotou Research Institute of Rare Earths as the main research body,cooperating with scientific and technological strength from Lanzhou University and Changsha Research Institute of Mining and Metallurgy.It optimizes the research direction to the research on the complex coexisting resources in the Baiyun Obo mine and specializes in efficient enrichment techniques,green metallurgical technology,and high-value utilization of rare earth,fluorite,and niobium resources in Baiyun Obo. 展开更多
关键词 key laboratories national key laboratories rare earth resource baotou research institute rare earths scientific technological strength state key laboratory key laboratory Baiyun Obo rare earth resources
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Schemes of IPsec integrated with quantum key distribution 认领 引用
2
作者 Chun-Hui Zhang Wen-Xuan Zhang +4 位作者 Xing-Yu Zhou Yuan Cao Jun Wang Jian Li Qin Wang 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第4期273-285,共13页
With the rapid advancement of quantum computing,traditional security protocols based on classical encryption algorithms are increasingly vulnerable to potential quantum attacks.The current IPsec protocol,which relies ... With the rapid advancement of quantum computing,traditional security protocols based on classical encryption algorithms are increasingly vulnerable to potential quantum attacks.The current IPsec protocol,which relies on classical cryptographic methods,is insufficient to withstand such threats,thereby compromising the security of long-term data transmission.To address this issue,we propose integrating quantum key distribution(QKD)into the internet protocol security(IPsec)protocol,thereby enhancing its resilience against quantum computing attacks.Here,two schemes that merge QKDgenerated keys with classical cryptographic keys are designed to enhance both security and stability.Furthermore,we conduct a comprehensive evaluation of the performance of various QKD protocols implemented with the scheme,along with an assessment of its overall efficacy across a topological network configuration.This approach not only ensures secure data transmission in the era of quantum computing but also highlights the potential application value of integrating QKD with IPsec,providing valuable insights for the design and implementation of future quantum-secure communication systems. 展开更多
关键词 quantum key distribution internet protocol security internet key exchange
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State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization 认领 引用
3
《China Rare Earth Information》 2026年第2期F0002-F0002,共1页
State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization was approved by the Ministry of Science and Technology to be one of the national key laboratories in November 2022.The la... State Key Laboratory of Baiyun Obo Rare Earth Resource Researches and Comprehensive Utilization was approved by the Ministry of Science and Technology to be one of the national key laboratories in November 2022.The laboratory was reconstructed based on former State Key Laboratory of Baiyun Obo Rare Earth Resources Researches and Comprehensive Utilization.The key laboratory takes Baotou Research Institute of Rare Earths as the main research body,cooperati ng with scientific and tech no logical stre ngth from Lanzhou University and Changsha Research Institute of Mining and Metallurgy.It optimizes the research direction to the research on the complex coexisting resources in the Baiyun Obo mine and specializes in efficient enrichment techniques,green metallurgical technology,and high-value utilization of rare earth,fluorite,and niobium resources in Baiyun Obo. 展开更多
关键词 key laboratories rare earth resource baotou research institute rare earths Baiyun Obo Rare Earth Resources state key laboratory Comprehensive Utilization key laboratory
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Intrinsic physical layer secure communication architecture aided by joint secure key distribution technique 认领 引用
4
作者 Di Wu Yuan Yao +6 位作者 Taihang Qiu Hui Rong Hanwen Luo Lei Deng Qi Yang Deming Liu Mengfan Cheng 《Advanced Photonics Nexus》 CSCD 2026年第2期188-197,共10页
Physical layer security(PLS)has become a critical technique for the rapidly expanding communication network in the postquantum era,supporting superior secure communication rates with lower deployment cost.Typical PLS ... Physical layer security(PLS)has become a critical technique for the rapidly expanding communication network in the postquantum era,supporting superior secure communication rates with lower deployment cost.Typical PLS architecture follows the“key distribution before encrypted communication”paradigm,which causes redundant system structure and potential security issues.We propose an intrinsic physical layer secure communication architecture aided by a joint secure key distribution technique in this article.The architecture utilizes random time-varying polarization evolution induced by the fiber channel as the entropy source and estimated bit error rate information as the medium to implement an intrinsic key distribution scheme without requiring additional channels and complex devices.We realize simultaneous physical layer encrypted transmission and error-free joint secure key distribution(SKD)based on this architecture.The experimental demonstration verifies the feasibility of the scheme.We believe the highly integrated secure communication architecture with multiple guaranteed security measures may not only provide a feasible,low-cost solution for the deployment of the SKD system in a variety of communication scenarios,but also propose a“key distribution within encrypted communication”paradigm for future PLS solutions. 展开更多
关键词 physical layer security secure key distribution optical encrypted communication
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Analysis of urban atmospheric influence on free-space quantum key distribution 认领 引用
5
作者 Hai-Long Zhang Xing-Ran Chen Tan Li 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第4期286-294,共9页
Quantum key distribution(QKD)has been widely deployed in practical applications after decades of development.However,the QKD system is easily affected by the external environment,especially free-space QKD.In this text... Quantum key distribution(QKD)has been widely deployed in practical applications after decades of development.However,the QKD system is easily affected by the external environment,especially free-space QKD.In this text,we examine two scenarios of free-space QKD in urban environments:satellite to ground and intercity.For satellite to ground QKD,the effects of stray light are analyzed.For intercity link,we discuss the influence of sea salt particles in coastal cities,and insoluble and soot particles in inland cities.Our findings indicate that using a telescope with a smaller field of view(FOV)and larger aperture diameters in satellite-to-ground QKD can effectively reduce errors induced by stray light.However,the diameter cannot be increased infinitely,when exceeding 0.8 m,the number of stray photons entering receiver rises rapidly and the quantum bits error rate(QBER)shows no significant reduction.For intercity QKD,the strength of extinction varies with relative humidity and aerosol particle radius,consequently altering channel transmittance.We investigate the impact of sea salt,insoluble particles,and soot on the key rate,finding that under the number density N=106m-3,sea salt exhibits the strongest impacts on key rate,especially when radius exceed 2.5μm.The impacts of insoluble particles are weaker and soot is the weakest,which can be ignored until N reaches 109m-3.For larger particle density,we can get higher key rate and further transmission distances in a soot-dominated environment.Our work could provide a valuable reference for the practical implementation of QKD in urban atmospheres. 展开更多
关键词 free-space aerosol particles urban atmosphere key rate
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Predicting potential suitable areas of Orchidaceae plants with national key reserve from Heilongjiang province in MaxEnt models 认领 引用
6
作者 Weixue Zhong Xiaoxue Wei +6 位作者 Yujia Yu Xiaoqing Tang Ye Zhang Xinyu Huang Xiaohui Li Ying Liu Dewen Li 《Ecological Frontiers》 CSCD 2026年第1期18-28,共11页
The study aimed at predicting potential suitable areas with national key reserve Orchidaceae plants in Heilongjiang province and conducive to plant protection.The distribution point data of six Orchidaceae plants and ... The study aimed at predicting potential suitable areas with national key reserve Orchidaceae plants in Heilongjiang province and conducive to plant protection.The distribution point data of six Orchidaceae plants and 19 bioclimatic variables were selected,and the environmental factors required for modeling were screened out by pearson correlation analysis and variance inflation factor(VIF)analysis.The potential suitable areas of Orchidaceae plants were predictat present and under different climate scenarios in 2090s by using geographic information system(GIS)and Maximum Entropy Model(MaxEnt).And then evaluated the prediction accuracy of the MaxEnt model using the AUC value,the TSS value and the Kappa value.The results showed that:1)The area under curve(AUC)values,true skill statistics(TSS)values and KAPPA values predicted by MaxEnt model were separately above 0.9,0.85 and 0.75.2)Under the climate scenario at present,the total suitable area of Orchidaceae plants was about 9.61×106km2,which was mainly distributed in Heilongjiang province.Among them,the high-suitable area of Cypripedium shanxiense S.C.Chen was the largest,the non-suitable area of Cypripedium guttatum Sw was the largest.3)Under different climate scenarios in 2090s,the total suitable area was slightly increasing(9.62×106km2).Among them,Cypripedium shanxiense S.C.Chen and Gastrodiae Rhizoma both showed the trend of expansion to the southwest,China,and the suitable areas expanded significantly.Comprehensive factor analysis showed that temperature and precipitation were the main bioclimatic variables of suitable areas distribution,and the low emission scenario(SSP 2-4.5)will be more conducive to the survival of Orchidaceae plants. 展开更多
关键词 Orchidaceae plants Potential suitable areas Bioclimatic variables MaxEnt models National key reserve
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Breaking the stranglehold on key technologies:building an integrated"R&D-Application-Promotion"ecosystem for domestic scientific instruments 认领 引用
7
作者 Yingli Xu Jing Wang +3 位作者 Xiaomeng Shi Xia Yuan Qian Wang Shuxiang Song 《Journal of Chinese Pharmaceutical Sciences》 CAS CSCD 2026年第1期88-97,共10页
Scientific instruments serve as foundational pillars for both scientific progress and industrial innovation,enabling deep exploration and driving technological breakthroughs.Their independent controllability and conti... Scientific instruments serve as foundational pillars for both scientific progress and industrial innovation,enabling deep exploration and driving technological breakthroughs.Their independent controllability and continuous innovation are indispensable for sustaining a competitive advantage in technological development,thereby securing national scientific capacity and long-term strategic growth.At present,however,China faces substantial risks of technological"stranglehold"in the high-end scientific instrument domain.The underlying causes are multifaceted,arising not only from insufficient accumulation of core technologies but also from entrenched systemic and ecosystem-level barriers that impede the application,scaling,and promotion of domestic instruments.This paper provides a systematic analysis of the challenges hindering the widespread adoption of domestically developed scientific instruments and proposes practical pathways to build a new,integrated"R&D-application-promotion"ecosystem.This ecosystem is anchored in trust,driven by user demand,and shaped through collaborative innovation.Key initiatives include organizing user visits to instrument manufacturers,convening seminars on domestic alternatives to imported equipment,establishing demonstration centers for application and promotion,and involving end-users directly in the R&D and iterative upgrading of domestic instruments.Together,these efforts aim to close the final critical gap,advancing domestic instruments from merely"functional"to genuinely"user-friendly",and ultimately to"widely implemented".By doing so,this framework offers both theoretical grounding and practical guidance for achieving high-level scientific and technological self-reliance and sustained innovation capacity. 展开更多
关键词 Domestic scientific instruments Strangleholdof key technology Application promotion Industry-university-researchapplication collaboration Scientific and technological self-reliance and strengthening
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Mechanism and scientific parameters of pressure relief by cutting key blocks above gob-side entry in extra-thick coal seam:A case study 认领 引用
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作者 HE Wen-rui ZHAI Wen-li HE Fu-lian 《Journal of Central South University》 SCIE EI CAS CSCD 2026年第2期703-724,共22页
The surrounding rock of the gob-side entry driving(GSED)is subjected to multiple high ground pressure effects in extra-thick coal seams,resulting in severe damage and significant control challenges.This study proposes... The surrounding rock of the gob-side entry driving(GSED)is subjected to multiple high ground pressure effects in extra-thick coal seams,resulting in severe damage and significant control challenges.This study proposes a novel technology of cutting periodically fractured key blocks(CPFKB)to relieve pressure on the surrounding rock.The mechanism of CPFKB in mitigating ground pressure is elucidated,and an analytical model is built.Meanwhile,a discrimination method is given for determining the scientific parameters of CPFKB and when and in which form they fall into a gob.The results indicate that severed blocks exhibit four instability modes:sliding instability,rotational instability,simultaneous rotational-sliding instability,and stable hinge.Cutting angle exerts a significant influence on interfacial stress of severed blocks.Low-inclination cutting angles tend to induce simultaneous rotational-sliding instability,while high-inclination cutting angles typically result in initial rotation followed by sliding instability.The probability of instability markedly increases during mid-to-late stages of rotation compared to early phases.The GSED with narrow coal pillars in extra-thick coal seams using longwall top-coal caving mining is conducive to the implementation of CPFKB.Furthermore,a hydraulic fracturing technique with 75°cutting angle for CPFKB is introduced,and it achieves good practical results. 展开更多
关键词 cutting key blocks gob-side entry driving rotation interfacial stress extra-thick coal seam
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Monolithically integrated dual distributed Bragg grating laser with a large hardware key space 认领 引用
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作者 JUNLI WANG LONGSHENG WANG +5 位作者 ZHIWEI JIA YUANYUAN GUO PENGFA CHANG YUNCAI WANG YUWEN QIN ANBANG WANG 《Photonics Research》 SCIE EI CAS CSCD 2026年第5期1866-1873,共8页
Synchronization of chaos in laser diodes has inspired advancements in physical-layer encryption communication,offering benefits such as high speed,extended range,and favorable compatibility.Nonetheless,a significant c... Synchronization of chaos in laser diodes has inspired advancements in physical-layer encryption communication,offering benefits such as high speed,extended range,and favorable compatibility.Nonetheless,a significant challenge persists in developing a synchronous chaotic transceiver with an extensive hardware key space without increasing system complexity.In this study,we propose the utilization of monolithically integrated dual distributed Bragg grating lasers(DDBGLs)to construct a synchronous chaotic transceiver with a large hardware key space. 展开更多
关键词 synchronous chaotic transce laser diodes dual distributed bragg grating lasers synchronization chaos large hardware key space synchronous chaotic transceiver monolithically integrated
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KPA-ViT:Key Part-Level Attention Vision Transformer for Foreign Body Classification on Coal Conveyor Belt 认领 引用
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作者 Haoxuanye Ji Zhiliang Chen +3 位作者 Pengfei Jiang Ziyue Wang Ting Yu Wei Zhang 《Computers, Materials & Continua》 SCIE EI 2026年第3期656-671,共16页
Foreign body classification on coal conveyor belts is a critical component of intelligent coal mining systems.Previous approaches have primarily utilized convolutional neural networks(CNNs)to effectively integrate spa... Foreign body classification on coal conveyor belts is a critical component of intelligent coal mining systems.Previous approaches have primarily utilized convolutional neural networks(CNNs)to effectively integrate spatial and semantic information.However,the performance of CNN-based methods remains limited in classification accuracy,primarily due to insufficient exploration of local image characteristics.Unlike CNNs,Vision Transformer(ViT)captures discriminative features by modeling relationships between local image patches.However,such methods typically require a large number of training samples to perform effectively.In the context of foreign body classification on coal conveyor belts,the limited availability of training samples hinders the full exploitation of Vision Transformer’s(ViT)capabilities.To address this issue,we propose an efficient approach,termed Key Part-level Attention Vision Transformer(KPA-ViT),which incorporates key local information into the transformer architecture to enrich the training information.It comprises three main components:a key-point detection module,a key local mining module,and an attention module.To extract key local regions,a key-point detection strategy is first employed to identify the positions of key points.Subsequently,the key local mining module extracts the relevant local features based on these detected points.Finally,an attention module composed of self-attention and cross-attention blocks is introduced to integrate global and key part-level information,thereby enhancing the model’s ability to learn discriminative features.Compared to recent transformer-based frameworks—such as ViT,Swin-Transformer,and EfficientViT—the proposed KPA-ViT achieves performance improvements of 9.3%,6.6%,and 2.8%,respectively,on the CUMT-BelT dataset,demonstrating its effectiveness. 展开更多
关键词 Foreign body classification global and part-level key information coal conveyor belt vision transformer(ViT) self and cross attention
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Embodied-Intelligence Power Industrial Control Systems:Architecture Design,Key Scientific Problems,and Research Recommendations 认领 引用
11
作者 Tingjun Zhang Dong Yue 《IEEE/CAA Journal of Automatica Sinica》 SCIE EI CSCD 2026年第2期239-242,共4页
THE power industrial control system(power ICS)is thecore infrastructure that ensures the safe,stable,and efficient operation of power systems.Its architecture typi-cally adopts a hierarchical and partitioned end-edge-... THE power industrial control system(power ICS)is thecore infrastructure that ensures the safe,stable,and efficient operation of power systems.Its architecture typi-cally adopts a hierarchical and partitioned end-edge-cloud collaborative design.However,the large-scale integration ofdistributed renewable energy resources,coupled with the extensivedeployment of sensing and communication devices,has resulted inthe new-type power system characterized by dynamic complexityand high uncertainty[1]-[4]. 展开更多
关键词 power system embodied intelligence power industrial control system power architecture design key scientific problems power industrial control systems sensing communication deviceshas renewable energy resourcescoupled
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Practical 15 Mb/s Quantum Key Distribution Using Compact Single-Photon Detectors 认领 引用
12
作者 Tingting Shi Zhengyu Yan +4 位作者 Yuanbin Fan Lai Zhou Yuanfei Gao Davide G.Marangon Zhiliang Yuan 《Chinese Physics Letters》 SCIE EI CAS CSCD 2025年第12期172-177,共6页
Quantum key distribution(QKD)is recognized as an unconditionally secure method of communication encryption,relying solely on the principles of quantum mechanics.A key performance metric for QKD systems is secure key r... Quantum key distribution(QKD)is recognized as an unconditionally secure method of communication encryption,relying solely on the principles of quantum mechanics.A key performance metric for QKD systems is secure key rate(SKR),which is a critical factor for real-world applications.Herein,we report a practical QKD system,equipped with compact gated InGaAs/InP single-photon detectors(SPDs),that can generate a high SKR of 15.2 Mb/s with a channel loss of 2 dB.This exceptional performance stems from the ultra-low afterpulsing probability of the SPDs,which significantly reduces the bit error rate in the QKD system.The typical quantum bit error rate is 1.3%.The results validate the feasibility of an integrated,practical QKD system and offer a reliable solution for the future development of real-world QKD networks. 展开更多
关键词 quantum key distribution qkd afterpulsing probability secure key rate quantum key distribution single photon detectors secure key rate skr which bit error rate
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A security authentication scheme for mobile industrial IoT supply chains based on blockchain and group key management 认领 引用
13
作者 ChaoYue Wang Xian Zhao +2 位作者 Qingyuan Liu Ting Chen Tao Liu 《Digital Communications and Networks》 SCIE EI CSCD 2026年第2期283-293,共11页
Driven by globalization and digitization,the Mobile Industrial Supply Chain Internet of Things(IoT)has gradually developed,utilizing mobile devices and IoT technologies to enable real-time monitoring and efficient res... Driven by globalization and digitization,the Mobile Industrial Supply Chain Internet of Things(IoT)has gradually developed,utilizing mobile devices and IoT technologies to enable real-time monitoring and efficient responses across various stages.However,with the growing demand for high-frequency data exchange,the Mobile Industrial Supply Chain IoT faces significant challenges in data security,authentication,and privacy protection.This paper proposes a security authentication scheme based on blockchain and group key management,leveraging the decentralized and tamper-resistant features of blockchain,the privacy-preserving authentication method of Zero-Knowledge Proofs(ZKP),and a hierarchical key management mechanism based on binary key trees.This approach aims to enhance the security and scalability of Mobile Industrial Supply Chain IoT.The experimental section simulates scenarios such as dynamic node addition and key updates,evaluating the performance in terms of encryption,decryption,and key management efficiency,thus demonstrating its superiority in multi-party collaborative environments. 展开更多
关键词 Blockchain IoT Authentication ZKP Key tree Mobile industrial supply chain
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An Anonymous Authentication and Key Exchange Protocol for UAVs in Flying Ad-Hoc Networks 认领 引用
14
作者 Yanan Liu Suhao Wang +4 位作者 Lei Cao Pengfei Wang Zheng Zhang Shuo Qiu Ruchan Dong 《Computers, Materials & Continua》 SCIE EI 2026年第3期1262-1286,共25页
Unmanned Aerial Vehicles(UAVs)in Flying Ad-Hoc Networks(FANETs)are widely used in both civilian and military fields,but they face severe security,trust,and privacy vulnerabilities due to their high mobility,dynamic to... Unmanned Aerial Vehicles(UAVs)in Flying Ad-Hoc Networks(FANETs)are widely used in both civilian and military fields,but they face severe security,trust,and privacy vulnerabilities due to their high mobility,dynamic topology,and open wireless channels.Existing security protocols for Mobile Ad-Hoc Networks(MANETs)cannot be directly applied to FANETs,as FANETs require lightweight,high real-time performance,and strong anonymity.The current FANETs security protocol cannot simultaneously meet the requirements of strong anonymity,high security,and low overhead in high dynamic and resource-constrained scenarios.To address these challenges,this paper proposes an Anonymous Authentication and Key Exchange Protocol(AAKE-OWA)for UAVs in FANETs based on OneWay Accumulators(OWA).During the UAV registration phase,the Key Management Center(KMC)generates an identity ticket for each UAV using OWA and transmits it securely to the UAV’s on-board tamper-proof module.In the key exchange phase,UAVs generate temporary authentication tickets with random numbers and compute the same session key leveraging the quasi-commutativity of OWA.For mutual anonymous authentication,UAVs encrypt random numbers with the session key and verify identities by comparing computed values with authentication values.Formal analysis using the Scyther tool confirms that the protocol resists identity spoofing,man-in-the-middle,and replay attacks.Through Burrows Abadi Needham(BAN)logic proof,it achieves mutual anonymity,prevents simulation and physical capture attacks,and ensures secure connectivity of 1.Experimental comparisons with existing protocols prove that the AAKE-OWA protocol has lower computational overhead,communication overhead,and storage overhead,making it more suitable for resource-constrained FANET scenarios.Performance comparison experiments show that,compared with other schemes,this scheme only requires 8 one-way accumulator operations and 4 symmetric encryption/decryption operations,with a total computational overhead as low as 2.3504 ms,a communication overhead of merely 1216 bits,and a storage overhead of 768 bits.We have achieved a reduction in computational costs from 6.3%to 90.3%,communication costs from 5.0%to 69.1%,and overall storage costs from 33%to 68%compared to existing solutions.It can meet the performance requirements of lightweight,real-time,and anonymity for unmanned aerial vehicles(UAVs)networks. 展开更多
关键词 Authentication key exchange one-way accumulator flying ad-hoc networks security
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Quasi-periodic optical key-enabled hybrid cryptography:merging diffractive physics and deep learning for high-dimensional security 认领 引用
15
作者 Yu Shao Haiqi Gao +6 位作者 Jiaming Liang Xuehui Wang Junren Wen Yuchuan Shao Yueguang Zhang Weidong Shen Chenying Yang 《Advanced Photonics Nexus》 CSCD 2026年第3期176-185,共10页
Optical encryption inherently provides strong security advantages,with hybrid optoelectronic systems offering additional degrees of freedom by integrating optical and algorithmic domains.However,existing optical encry... Optical encryption inherently provides strong security advantages,with hybrid optoelectronic systems offering additional degrees of freedom by integrating optical and algorithmic domains.However,existing optical encryption schemes heavily rely on electronic computation,limiting overall efficiency,and the physical keys are susceptible to damage,compromising both security and system stability.To overcome these challenges,we introduce the quasi-periodic optical key(Q-POK),which combines longrange order with short-range disorder,enabling enhanced security and robustness against damage within a single platform.By leveraging diffraction symmetry,our design enables optics-driven encryption,effectively shifting the optoelectronic balance toward photonic processing.Moreover,we innovatively apply deep learning to reconstruct the complex optical ciphertext field using only amplitude data and cryptographic keys,simultaneously achieving data compression and improved security.Within this framework,the key space includes continuously tunable parameters such as wavelength,propagation distance,phase modulation,and Q-POK geometry,significantly expanding cryptographic diversity.Our system also demonstrates robust cryptographic reliability by reducing inter-class distances by over 50% and tolerating up to 20% ciphertext loss.Our framework represents a generation of physically grounded,algorithmically enhanced optical cryptosystems—laying a foundational pathway for scalable,hardware-integrated information security paradigms. 展开更多
关键词 optical encryption diffraction deep learning cryptographic key hybrid optoelectronic architecture
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Machine learning-optimized interpretability analysis for identifying key drivers of NO3lifetime variability 认领 引用
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作者 Shengshuai Cao Shanshan Wang +3 位作者 Yuhao Yan Jiaqi Liu Chuanqi Gu Bin Zhou 《Journal of Environmental Sciences》 SCIE EI CAS CSCD 2026年第6期214-221,共8页
Nitrate radical(NO3),a critical nocturnal oxidant,was measured continuously from January 2022 to December 2023 in Shanghai Dongtan Wetland Park,China.The nocturnal NO3levels ranged from approximately 4.7 to 300 ... Nitrate radical(NO3),a critical nocturnal oxidant,was measured continuously from January 2022 to December 2023 in Shanghai Dongtan Wetland Park,China.The nocturnal NO3levels ranged from approximately 4.7 to 300 pptv,with daytime measurements below the detection limit.A steady-state analysis,based on the observed NO3,nitrogen dioxide(NO2),and ozone(O3),was employed to calculate NO3lifetime.>50%of lifetime was shorter than 120 s,with only 6%exceeding 10 min.Machine learning-assisted SHAP interpretability method was applied to elucidate the underlying drivers of NO3lifetime.NO2,relative humidity(RH),and wind direction(WD)were identified as the predominant drivers.The relationship with WD suggested that NO3lifetime varied markedly across air masses,spanning from only seconds within polluted industrial ports air masses to approximately 13 min in clean ocean air masses,with inland air masses exhibiting median lifetime.Meanwhile,the loss mechanisms of NO3also differed significantly depending on air mass origins.The higher NO3lifetime during Clean air masses can be principally due to significantly reduced NO2levels(<2 ppbv),a transition in the RH effects from negative to positive,and decreased PM2.5.Our study uniquely explores nocturnal NO3lifetime within distinct air masses over coastal region,revealing how shifts in anthropogenic emissions and atmospheric transport processes drive marked variations in NO3loss mechanisms.We offer new insights into how environmental variables influence NO3dynamics,providing new perspectives for understanding the complex nitrogen chemistry at coastal sites and advancing future atmospheric studies. 展开更多
关键词 NO3 lifetime Machine learning Key drivers Air masses Differential optical absorption spectroscopy
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Measurement-device-independent quantum key distribution with entanglement-assisted linear Bell state measurement 认领 引用
17
作者 Cheng Zhang Cheng Liu +7 位作者 Jiawei Ying Shipu Gu Lan Zhou Yin Ma Kang Gao Hai Wei Kai Wen Yubo Sheng 《Chinese Physics B》 SCIE EI CAS CSCD 2026年第4期130-139,共10页
Measurement-device-independent quantum key distribution(MDI QKD)provides inherent immunity against attacks targeting practical measurement devices.Existing MDI QKD protocols all rely on Bell-state measurements(BSM)to ... Measurement-device-independent quantum key distribution(MDI QKD)provides inherent immunity against attacks targeting practical measurement devices.Existing MDI QKD protocols all rely on Bell-state measurements(BSM)to establish correlations between the users.However,the success probability of linear-optics BSM is limited to 50%,which severely restricts the achievable key rate of MDI QKD.We propose a high-capacity MDI QKD protocol with entanglementassisted linear-optical BSM.This protocol has three advantages.First,compared with the original MDI QKD,at least a 25%increase in the key rate can be achieved.Second,simulation results show that this protocol can effectively increase the maximum photon transmission distance of MDI QKD from 262 km to 272 km.Third,this protocol is feasible in a fully linear-optical system under current experimental conditions.Our protocol provides a potential approach for improving the performance of future quantum communication networks. 展开更多
关键词 measurement-device-independent quantum key distribution linear-optical Bell state measurement entanglement assistance
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Heterogeneous User Authentication and Key Establishment Protocol for Client-Server Environment 认领 引用
18
作者 Huihui Zhu Fei Tang +1 位作者 Chunhua Jin Ping Wang 《Computers, Materials & Continua》 SCIE EI 2026年第4期648-666,共19页
The ubiquitous adoption of mobile devices as essential platforms for sensitive data transmission has heightened the demand for secure client-server communication.Although various authentication and key agreement proto... The ubiquitous adoption of mobile devices as essential platforms for sensitive data transmission has heightened the demand for secure client-server communication.Although various authentication and key agreement protocols have been developed,current approaches are constrained by homogeneous cryptosystem frameworks,namely public key infrastructure(PKI),identity-based cryptography(IBC),or certificateless cryptography(CLC),each presenting limitations in client-server architectures.Specifically,PKI incurs certificate management overhead,IBC introduces key escrow risks,and CLC encounters cross-system interoperability challenges.To overcome these shortcomings,this study introduces a heterogeneous signcryption-based authentication and key agreement protocol that synergistically integrates IBC for client operations(eliminating PKI’s certificate dependency)with CLC for server implementation(mitigating IBC’s key escrow issue while preserving efficiency).Rigorous security analysis under the mBR(modified Bellare-Rogaway)model confirms the protocol’s resistance to adaptive chosen-ciphertext attacks.Quantitative comparisons demonstrate that the proposed protocol achieves 10.08%–71.34%lower communication overhead than existing schemes across multiple security levels(80-,112-,and 128-bit)compared to existing protocols. 展开更多
关键词 User authentication key establishment client-server heterogeneous security
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Integrated silicon photonic transceivers for bidirectional continuous-variable quantum key distribution in metropolitan ring networks 认领 引用
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作者 YANKAI XU TAO WANG +4 位作者 LANG LI HANWEN YIN XU LIU PENG HUANG GUIHUA ZENG 《Photonics Research》 SCIE EI CAS CSCD 2026年第5期2210-2222,共13页
Metropolitan quantum key distribution(QKD)networks face scalability bottlenecks from limited fiber resources and high deployment costs.Although photonic integration enables miniaturization,current implementations are ... Metropolitan quantum key distribution(QKD)networks face scalability bottlenecks from limited fiber resources and high deployment costs.Although photonic integration enables miniaturization,current implementations are largely restricted to unidirectional configurations,limiting topological flexibility.Here,we report a monolithic silicon photonic continuous-variable(CV)QKD transceiver tailored for simultaneous bidirectional operation.Integrating high-linearity modulators and high-sensitivity coherent detectors on a silicon-on-insulator(SOI)platform,we employ a frequency division duplexing(FDD)strategy combined with pilot-aided digital signal processing to effectively suppress crosstalk and backscattering. 展开更多
关键词 photonic integration fiber resources scalability bottlenecks scalability monolithic silicon photonic metropolitan ring networks bidirectional continuous variable quantum key distribution bidirectional operationintegrating
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Location Privacy Protection of Data Elements in ICVs: A Key Update Mechanism for Defending Against Chosen-Ciphertext Attacks 认领 引用
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作者 Lei Wang Hongji Luo +5 位作者 Yong Heng Jingnan Tang Xiaochuan Ju Jianwei An Haitao Xu Xianwei Zhou 《Computers, Materials & Continua》 SCIE EI 2026年第8期1312-1335,共24页
In intelligent connected vehicles(ICVs)system,driving users connect to service providers(SPs)to obtain location-based services(LBS).Users transmit large volumes of encrypted sensitive information related to their itin... In intelligent connected vehicles(ICVs)system,driving users connect to service providers(SPs)to obtain location-based services(LBS).Users transmit large volumes of encrypted sensitive information related to their itineraries to SPs to access value-added services.Attackers may launch chosen-ciphertext attacks(CCA)against SPs by exploiting the malleability of homomorphic encryption.This enables adversaries to infer or steal private key information,thereby threatening the long-term privacy of user data.Furthermore,existing key management technologies in ICVs system predominantly rely on passive defense strategies and suffer from limitations such as single protection mechanisms,delayed updates,and limited adaptability.To address these issues,this paper proposes an adaptive key update security mechanism based on a differential game framework.This mechanism treats the cumulative information leakage of the private key as a contested resource to construct a differential game model.Based on the feedback Nash equilibrium(NE),the mechanism adaptively derives the optimal homomorphic private key update frequency in response to the attack frequency,thereby maximizing the defense benefit.Finally,numerical simulations validate the correctness of the proposed model and demonstrate the effectiveness of the mechanism. 展开更多
关键词 Intelligent connected vehicles(ICVs) data element privacy differential game adaptive key update homomorphic encryption
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