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Two-photon polymerization based microfluidic biochip incorporating a herringbone microchannel and deterministic lateral displacement design for efficient capture of circulating tumor cells 认领 引用
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作者 Xinyi LIANG Changwei QIN +10 位作者 Kaiqiang LI An REN Jiarui HU Weikang LV Lunan KE Zhen WANG Mengfei YU Xiuxiu JIANG Huayong YANG Xiaobin XU Liang MA 《Journal of Zhejiang University-SCIENCE A》 SCIE EI CAS CSCD 2026年第4期334-347,I0008,I0009,I0049,共14页
Circulating tumor cells(CTCs)are cells that become detached from a primary tumor and enter the vascular or lymphatic system.These cells contain nearly the entire genetic information of the primary tumor.Enrichment and... Circulating tumor cells(CTCs)are cells that become detached from a primary tumor and enter the vascular or lymphatic system.These cells contain nearly the entire genetic information of the primary tumor.Enrichment and detection of CTCs play a crucial role in prognostications and risk assessments of tumor metastasis and recurrence,evaluation of efficacy and potential medications for precision tumor therapy,and detection of dynamic biomarkers during tumor treatment.Current methods of CTC capture often face the challenge of balancing capture rate and purity.To address these issues,we propose a microfluidic biochip based on the principle of immunoaffinity,which incorporates a herringbone microchannel and deterministic lateral displacement(DLD)technology for the capture of CTCs.By manipulating the internal structural design of the microfluidic chip,we optimized the flow field within the chip,thereby enhancing the contact frequency between cells and aptamers and ultimately improving the capture rate.The proposed chip demonstrated a capture efficiency of approximately 91.87%for human breast cancer cells(MCF7),with a release rate of 77.5%.The relative activity of the released cells was approximately 94.08%.Notably,the specificity of the aptamers toward tumor cell surface antigens enables high-purity capture.Additionally,the use of DNA enzymes to digest aptamers facilitates the release of high-activity CTCs,offering a method to simultaneously achieve a high capture rate,purity,and activity enrichment. 展开更多
关键词 Circulating tumor cell(CTC) Cell sorting Microfluidic chip Two-photon polymerization Deterministic lateral displacement
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Multi-agent deep deterministic policy gradient algorithm for predictive UAV deployment in CF-mMIMO for identifying coverage holes 认领 引用
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作者 Kenneth Okello Elijah Mwangi Dominic Bernard Onyango Konditi 《Journal of Electronic Science and Technology》 EI CAS CSCD 2026年第2期91-108,共18页
Unmanned aerial vehicles(UAVs),due to their adaptable mobility and various applications,including supporting communication infrastructure,monitoring,and rescue,are becoming increasingly valuable,making them a valuable... Unmanned aerial vehicles(UAVs),due to their adaptable mobility and various applications,including supporting communication infrastructure,monitoring,and rescue,are becoming increasingly valuable,making them a valuable addition to emergency communication networks.Even though cell-free massive multiple-input multiple-output(CF-mMIMO)networks provide high communication data rates,their immobility makes it difficult to maintain quality network continuity in emergency,unpredictable,and congested areas where users’equipment is located.To mitigate this challenge,the integration of aerial access points(AAPs)into CF-mMIMO networks is proposed by using the multi-agent deep deterministic policy gradient(MADDPG)framework,which teaches several UAVs to jointly learn the best deployment plans by estimating user distributions and traffic demand trends on invitations to provide tremendous dynamic coverage,increased spectral efficiency(SE),and throughput maximization.The predictive component framework utilizes a long short-term memory(LSTM)network model incorporating concepts of learning,association,movement,and service provision for temporal traffic forecasting,thereby ensuring proactive UAV positioning before coverage holes emerge.Our extensive simulation results demonstrate that the MADDPG-based throughput deployment strategy achieves approximately 45 Gbps for 50 UAVs,the SE for downlink and uplink of 10.2 bps/Hz and 15.2 bps/Hz,respectively,and the minimal transmit power of 3.5 kJ as compared with the multi-agent soft actorcritic(MASAC)method,traditional heuristic-LSTM,and single-agent reinforcement learning approaches. 展开更多
关键词 Aerial access points Cell-free massive multiple-input multiple-output Long short-term memory Multi-agent deep deterministic policy gradient Unmanned aerial vehicles
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Deterministic quantum light emitters in DNA origami-engineered molecule-MoS2 hybrids 认领 引用
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作者 Zhijie Li Shen Zhao +8 位作者 lulia Melchakova Elisabeth Erber Christoph Sikeler Kenji Watanabe Takashi Taniguchi Tim Liedl Alexander Hogele Anvar S.Baimuratov Irina V.Martynenko 《Light: Science & Applications》 SCIE EI CAS CSCD 2026年第6期1837-1847,共11页
The functionalization of atomically-thin transition metal dichalcogenides(TMDs)with organic molecules is a promising approach for realizing nanoscale optoelectronic devices with tailored functionalities,such as quantu... The functionalization of atomically-thin transition metal dichalcogenides(TMDs)with organic molecules is a promising approach for realizing nanoscale optoelectronic devices with tailored functionalities,such as quantum light generation or p-n junctions.However,achieving precise control over the molecules'positioning on the 2D material remains a significant challenge.Here,we overcome the limitations of solution-and vapor-deposition methods and use a DNA origami placement technique to spatially arrange thiol molecules on a chip surface at the single-molecule level with high assembly yields.We successfully integrated MoS monolayers with micron-scale thiol-origami patterns,creating quantum-emitting sites from thiol-induced localized excitons in MoS.Our work lays a foundation for the chemical control of quantum emitters in atomically-thin semiconductors and enables the design and production of ultracompact 2D devices for quantum technologies. 展开更多
关键词 spatially arrange thiol mol organic molecules dna origami placement technique quantum light generation nanoscale optoelectronic devices DNA origami transition metal dichalcogenides tmds deterministic quantum light emitters
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Robust vortex beam trapping for deterministic nanoscale positioning of metallic nanoparticles on solid surfaces 认领 引用
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作者 Hengheng Zhu Hao Li +2 位作者 Weihai Ni Lei Hou Yi Liu 《Advanced Photonics Nexus》 CSCD 2026年第4期231-237,共7页
Deterministic nanoscale positioning of metallic nanoparticles is critical for constructing functional nanophotonic and plasmonic devices.Here,we demonstrate robust on-surface trapping and manipulation of individual go... Deterministic nanoscale positioning of metallic nanoparticles is critical for constructing functional nanophotonic and plasmonic devices.Here,we demonstrate robust on-surface trapping and manipulation of individual gold nanoparticles using tightly focused optical vortex beams.This approach offers three key advantages:(i)nanometer-level positioning accuracy on solid substrates,(ii)broad compatibility with particle sizes spanning micrometers to the submicrometer regime,and(iii)high reproducibility with negligible photothermal damage.Leveraging these capabilities,we achieve reliable assembly of plasmonic nanoplates into user-defined geometries and construct plasmonic dimer nanocavities.These results establish a simple,non-destructive,far-field strategy for deterministic assembling functional plasmonic nanostructures with precise spatial control.The method provides a cost-effective platform for designing quantum photonic devices,enhancing light–matter interactions,and enabling next-generation integrated nanophotonic systems. 展开更多
关键词 optical vortex beam nanophotonics plasmonic nanocavities deterministic nanoparticle manipulation solid surface optical trapping
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A Dynamic Deceptive Defense Framework for Zero-Day Attacks in IIoT:Integrating Stackelberg Game and Multi-Agent Distributed Deep Deterministic Policy Gradient 认领 引用 被引量：1
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作者 Shigen Shen Xiaojun Ji Yimeng Liu 《Computers, Materials & Continua》 SCIE EI 2025年第11期3997-4021,共25页
The Industrial Internet of Things(IIoT)is increasingly vulnerable to sophisticated cyber threats,particularly zero-day attacks that exploit unknown vulnerabilities and evade traditional security measures.To address th... The Industrial Internet of Things(IIoT)is increasingly vulnerable to sophisticated cyber threats,particularly zero-day attacks that exploit unknown vulnerabilities and evade traditional security measures.To address this critical challenge,this paper proposes a dynamic defense framework named Zero-day-aware Stackelberg Game-based Multi-Agent Distributed Deep Deterministic Policy Gradient(ZSG-MAD3PG).The framework integrates Stackelberg game modeling with the Multi-Agent Distributed Deep Deterministic Policy Gradient(MAD3PG)algorithm and incorporates defensive deception(DD)strategies to achieve adaptive and efficient protection.While conventional methods typically incur considerable resource overhead and exhibit higher latency due to static or rigid defensive mechanisms,the proposed ZSG-MAD3PG framework mitigates these limitations through multi-stage game modeling and adaptive learning,enabling more efficient resource utilization and faster response times.The Stackelberg-based architecture allows defenders to dynamically optimize packet sampling strategies,while attackers adjust their tactics to reach rapid equilibrium.Furthermore,dynamic deception techniques reduce the time required for the concealment of attacks and the overall system burden.A lightweight behavioral fingerprinting detection mechanism further enhances real-time zero-day attack identification within industrial device clusters.ZSG-MAD3PG demonstrates higher true positive rates(TPR)and lower false alarm rates(FAR)compared to existing methods,while also achieving improved latency,resource efficiency,and stealth adaptability in IIoT zero-day defense scenarios. 展开更多
关键词 Industrial internet of things zero-day attacks Stackelberg game distributed deep deterministic policy gradient defensive spoofing dynamic defense
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GNSS time series analysis of the crustal movement network of China:Detecting the optimal order of the polynomial term and its effect on the deterministic model 认领 引用
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作者 Shuguang Wu Hua Ouyang +3 位作者 Houpu Li Zhao Li Haiyang Li Yuefan He 《Geodesy and Geodynamics》 EI CSCD 2025年第4期378-386,共9页
GNSS time series analysis provides an effective method for research on the earth's surface deformation,and it can be divided into two parts,deterministic models and stochastic models.The former part can be achieve... GNSS time series analysis provides an effective method for research on the earth's surface deformation,and it can be divided into two parts,deterministic models and stochastic models.The former part can be achieved by several parameters,such as polynomial terms,periodic terms,offsets,and post-seismic models.The latter contains some stochastic noises,which can be affected by detecting the former parameters.If there are not enough parameters assumed,modeling errors will occur and adversely affect the analysis results.In this study,we propose a processing strategy in which the commonly-used 1-order of the polynomial term can be replaced with different orders for better fitting GNSS time series of the Crustal Movement Network of China(CMONOC)stations.Initially,we use the Bayesian Information Criterion(BIC)to identify the best order within the range of 1-4 during the fitting process using the white noise plus power-law noise(WN+PL)model.Then,we compare the 1-order and the optimal order on the effect of deterministic models in GNSS time series,including the velocity and its uncertainty,amplitudes,and initial phases of the annual signals.The results indicate that the first-order polynomial in the GNSS time series is not the primary factor.The root mean square(RMS)reduction rates of almost all station components are positive,which means the new fitting of optimal-order polynomial helps to reduce the RMS of residual series.Most stations maintain the velocity difference(VD)within ±1 mm/yr,with percentages of 85.6%,81.9%and 63.4%in the North,East,and Up components,respectively.As for annual signals,the numbers of amplitude difference(AD)remained at ±0.2 mm are 242,239,and 200 in three components,accounting for 99.6%,98.4%,and 82.3%,respectively.This finding reminds us that the detection of the optimal-order polynomial is necessary when we aim to acquire an accurate understanding of the crustal movement features. 展开更多
关键词 GNSS time series analysis CMONOC Optimal polynomial order Deterministic model
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Physically based deterministic rockfall hazard assessment integrating multi-failure modes at large scale:A case study of Tiefeng Township,Chongqing,China 认领 引用
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作者 Juan Du Xiao Feng +2 位作者 Bo Chai Kunlong Yin Li Zheng 《Journal of Rock Mechanics and Geotechnical Engineering》 SCIE CSCD 2025年第10期6324-6343,共20页
The rise in construction activities within mountainous regions has significantly increased the frequency of rockfalls.Statistical models for rockfall hazard assessment often struggle to achieve high precision on a lar... The rise in construction activities within mountainous regions has significantly increased the frequency of rockfalls.Statistical models for rockfall hazard assessment often struggle to achieve high precision on a large scale.This limitation arises primarily from the scarcity of historical rockfall data and the inadequacy of conventional assessment indicators in capturing the physical and structural characteristics of rockfalls.This study proposes a physically based deterministic model designed to accurately quantify rockfall hazards at a large scale.The model accounts for multiple rockfall failure modes and incorporates the key physical and structural parameters of the rock mass.Rockfall hazard is defined as the product of three factors:the rockfall failure probability,the probability of reaching a specific position,and the corresponding impact intensity.The failure probability includes probabilities of formation and instability of rock blocks under different failure modes,modeled based on the combination patterns of slope surfaces and rock discontinuities.The Monte Carlo method is employed to account for the randomness of mechanical and geometric parameters when quantifying instability probabilities.Additionally,the rock trajectories and impact energies simulated using Flow-R software are combined with rockfall failure probability to enable regional rockfall hazard zoning.A case study was conducted in Tiefeng,Chongqing,China,considering four types of rockfall failure modes.Hazard zoning results identified the steep and elevated terrains of the northern and southern anaclinal slopes as areas of highest rockfall hazard.These findings align with observed conditions,providing detailed hazard zoning and validating the effectiveness and potential of the proposed model. 展开更多
关键词 Rockfall hazard assessment Physically based deterministic model Multi-failure modes Large-scale data
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End-to-End Deterministic Transmission with Bounded Time Error in Time-Sensitive Networking 认领 引用
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作者 Ma Hao Shou Guochu +3 位作者 Li Hongxing Liu Yaqiong Hu Yihong Chen Li 《China Communications》 SCIE EI CSCD 2025年第12期30-46,共17页
Time synchronization is a prerequisite for ensuring determinism in time-sensitive networking(TSN).While time synchronization errors cannot be overlooked,pursuing minimal time errors may incur unnecessary costs.Using c... Time synchronization is a prerequisite for ensuring determinism in time-sensitive networking(TSN).While time synchronization errors cannot be overlooked,pursuing minimal time errors may incur unnecessary costs.Using complex network theory,this study proposes a hierarchy for TSN and introduces the concept of bounded time error.A coupling model between traffic scheduling and time synchronization is established,deriving functional relationships among end-to-end delay,delay jitter,gate window,and time error.These relationships illustrate that time errors can trigger jumps in delay and delay jitter.To evaluate different time errors impact on traffic scheduling performance,an end-to-end transmission experiment scheme is designed,along with the construction of a TSN test platform implementing two representative cases.Case A is a closed TSN domain scenario with pure TSN switches emulating closed factory floor network.Case B depicts remote factory interconnection where TSN domains link via non-TSN domains composed of OpenFlow switches.Results from Case A show that delay and delay jitter on a single node are most significantly affected by time errors,up to one gating cycle.End-to-end delay jitter tends to increase with the number of hops.When the ratio of time error bound to window exceeds 10%,the number of schedulable traffic flows decreases rapidly.Case B reveals that when time error is below 1μs,the number of schedulable traffic flows begins to increase significantly,approaching full schedulability at errors below 0.6μs. 展开更多
关键词 bounded time error deterministic communications time synchronization time-sensitive networking traffic scheduling
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Deterministic N-photon state generation using lithium niobate on insulator device 认领 引用 被引量：2
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作者 Hua-Ying Liu Minghao Shang +6 位作者 Xiaoyi Liu Ying Wei Minghao Mi Lijian Zhang Yan-Xiao Gong Zhenda Xie Shining Zhu 《Advanced Photonics Nexus》 2023年第1期27-34,共8页
The large-photon-number quantum state is a fundamental but nonresolved request for practical quantum information applications.We propose an N-photon state generation scheme that is feasible and scalable,using lithium ... The large-photon-number quantum state is a fundamental but nonresolved request for practical quantum information applications.We propose an N-photon state generation scheme that is feasible and scalable,using lithium niobate on insulator circuits.Such a scheme is based on the integration of a common building block called photon-number doubling unit(PDU)for deterministic single-photon parametric downconversion and upconversion.The PDU relies on a 107-optical-quality-factor resonator and mW-level on-chip power,which is within the current fabrication and experimental limits.N-photon state generation schemes,with cluster and Greenberger–Horne–Zeilinger state as examples,are shown for different quantum tasks. 展开更多
关键词 deterministic parametric downconversion multiphoton generation lithium niobate on isolator microring resonator deterministic parametric upconversion
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An efficient deterministic secure quantum communication scheme based on cluster states and identity authentication 认领 引用 被引量：10
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作者 刘文杰 陈汉武 +3 位作者 马廷淮 李志强 刘志昊 胡文博 《Chinese Physics B》 SCIE EI CAS 2009年第10期4105-4109,共5页
A novel efficient deterministic secure quantum communication scheme based on four-qubit cluster states and single-photon identity authentication is proposed. In this scheme, the two authenticated users can transmit tw... A novel efficient deterministic secure quantum communication scheme based on four-qubit cluster states and single-photon identity authentication is proposed. In this scheme, the two authenticated users can transmit two bits of classical information per cluster state, and its efficiency of the quantum communication is 1/3, which is approximately 1.67 times that of the previous protocol presented by Wang et al [Chin. Phys. Lett. 23 （2006） 2658]. Security analysis shows the present scheme is secure against intercept-resend attack and the impersonator＇s attack. Furthermore, it is more economic with present-day techniques and easily processed by a one-way quantum computer. 展开更多
关键词 deterministic secure quantum communication cluster state identity authentication
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Deterministic and fuzzy-based methods to evaluate community resilience 认领 引用 被引量：7
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作者 Omar Kammouh Ali Zamani Noori +2 位作者 Veronica Taurino Stephen A.Mahin Gian Paolo Cimellaro 《Earthquake Engineering and Engineering Vibration》 SCIE EI CSCD 2018年第2期261-275,共15页
Community resilience is becoming a growing concern for authorities and decision makers.This paper introduces two indicator-based methods to evaluate the resilience of communities based on the PEOPLES framework.PEOPLES... Community resilience is becoming a growing concern for authorities and decision makers.This paper introduces two indicator-based methods to evaluate the resilience of communities based on the PEOPLES framework.PEOPLES is a multi-layered framework that defines community resilience using seven dimensions.Each of the dimensions is described through a set of resilience indicators collected from literature and they are linked to a measure allowing the analytical computation of the indicator’s performance.The first method proposed in this paper requires data on previous disasters as an input and returns as output a performance function for each indicator and a performance function for the whole community.The second method exploits a knowledge-based fuzzy modeling for its implementation.This method allows a quantitative evaluation of the PEOPLES indicators using descriptive knowledge rather than deterministic data including the uncertainty involved in the analysis.The output of the fuzzy-based method is a resilience index for each indicator as well as a resilience index for the community.The paper also introduces an open source online tool in which the first method is implemented.A case study illustrating the application of the first method and the usage of the tool is also provided in the paper. 展开更多
关键词 Deterministic approach resilience indicators fuzzy method PEOPLES framework Earthquake resilience
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Robust Quantum Secure Direct Communication and Deterministic Secure Quantum Communication over Collective Dephasing Noisy Channel 认领 引用 被引量：6
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作者 YUAN Hao SONG Jun +4 位作者 HE Qin HAN Lian-Fang HOU Kui HU Xiao-Yuan SHI Shou-Hua 《Communications in Theoretical Physics》 SCIE CAS 2008年第9期627-632,共6页
We propose two schemes for quantum secure direct communication (QSDC) and deterministic securequantum communication (DSQC) over collective dephasing noisy channel.In our schemes,four special two-qubit statesare used a... We propose two schemes for quantum secure direct communication (QSDC) and deterministic securequantum communication (DSQC) over collective dephasing noisy channel.In our schemes,four special two-qubit statesare used as the quantum channel.Since these states are unchanged through the collective dephasing noisy channel,the effect of the channel noise can be perfectly overcome.Simultaneously,the security against some usual attacks canbe ensured by utilizing the various checking procedures.Furthermore,these two schemes are feasible with present-daytechnique. 展开更多
关键词 quantum secure direct communication deterministic secure quantum communication collective dephasing noisy channel special two-qubit states
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Study of modeling unsteady blade row interaction in a transonic compressor stage part 2:influence of deterministic correlations on time-averaged flow prediction 认领 引用 被引量：4
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作者 Yang-Wei Liu Bao-Jie Liu Li-Peng Lu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2012年第2期291-299,共9页
The average-passage equation system （APES） provides a rigorous mathematical framework for account- ing for the unsteady blade row interaction through multistage compressors in steady state environment by introducing... The average-passage equation system （APES） provides a rigorous mathematical framework for account- ing for the unsteady blade row interaction through multistage compressors in steady state environment by introducing de- terministic correlations （DC） that need to be modeled to close the equation system. The primary purpose of this study was to provide insight into the DC characteristics and the in- fluence of DC on the time-averaged flow field of the APES. In Part 2 of this two-part paper, the influence of DC on the time-averaged flow field was systematically studied; Several time-averaging computations boundary conditions and DC were conducted with various for the downstream stator in a transonic compressor stage, by employing the CFD solver developed in Part 1 of this two-part paper. These results were compared with the time-averaged unsteady flow field and the steady one. The study indicat;d that the circumferential- averaged DC can take into account major part of the unsteady effects on spanwise redistribution of flow fields in compres- sors. Furthermore, it demonstrated that both deterministic stresses and deterministic enthalpy fluxes are necessary to reproduce the time-averaged flow field. 展开更多
关键词 Unsteady Blade row interaction Compressor Deterministic correlation Average-passage equation system CFD
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Deterministic Secure Quantum Communication with Cluster State and Bell-Basis Measurements 认领 引用 被引量：3
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作者 YUAN Hao HE Qin +3 位作者 HU Xiao-Yuan HOU Kui HAN Lian-Fang SHI Shou-Hua 《Communications in Theoretical Physics》 SCIE CAS 2008年第11期1105-1108,共4页
We present a novel protocol for deterministic secure quantum communication by using the lour-qubit cluster state as quantum channel. It is shown that two legitimate users can directly transmit the secret messages base... We present a novel protocol for deterministic secure quantum communication by using the lour-qubit cluster state as quantum channel. It is shown that two legitimate users can directly transmit the secret messages based on Bellbasis measurements and classical communication. The present protocol makes use of the ideas of block transmission and decoy particle checking technique. It has a high capacity as each cluster state can carry two 5its of information, and has a high intrinsic efficieney 5ecause almost all the instances except the decoy checking particles （its numSer is negligible） are useful. Furthermore, this protocol is feasible with present-day technique. 展开更多
关键词 deterministic secret quantum communication cluster state Bell-basis measurement block transmission decoy photon checking technology
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Electrocardiogram(ECG) pattern modeling and recognition via deterministic learning 认领 引用 被引量：4
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作者 Xunde DONG Cong WANG +1 位作者 Junmin HU Shanxing OU 《Control Theory and Technology》 EI CSCD 2014年第4期333-344,共12页
A method for electrocardiogram （ECG） pattern modeling and recognition via deterministic learning theory is presented in this paper. Instead of recognizing ECG signals beat-to-beat, each ECG signal which contains a n... A method for electrocardiogram （ECG） pattern modeling and recognition via deterministic learning theory is presented in this paper. Instead of recognizing ECG signals beat-to-beat, each ECG signal which contains a number of heartbeats is recognized. The method is based entirely on the temporal features （i.e., the dynamics） of ECG patterns, which contains complete information of ECG patterns. A dynamical model is employed to demonstrate the method, which is capable of generating synthetic ECG signals. Based on the dynamical model, the method is shown in the following two phases： the identification （training） phase and the recognition （test） phase. In the identification phase, the dynamics of ECG patterns is accurately modeled and expressed as constant RBF neural weights through the deterministic learning. In the recognition phase, the modeling results are used for ECG pattern recognition. The main feature of the proposed method is that the dynamics of ECG patterns is accurately modeled and is used for ECG pattern recognition. Experimental studies using the Physikalisch-Technische Bundesanstalt （PTB） database are included to demonstrate the effectiveness of the approach. 展开更多
关键词 ECG Pattern recognition Deterministic learning Dynamics Temporal features
Fault tolerant deterministic secure quantum communication using logical Bell states against collective noise 认领 引用 被引量：3
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作者 王朝 刘建伟 +2 位作者 陈秀波 毕亚港 尚涛 《Chinese Physics B》 SCIE EI CAS CSCD 2015年第4期53-62,共10页
This study proposes two novel fault tolerant deterministic secure quantum communication （DSQC） schemes resistant to collective noise using logical Bell states. Either DSQC scheme is constructed based on a new coding... This study proposes two novel fault tolerant deterministic secure quantum communication （DSQC） schemes resistant to collective noise using logical Bell states. Either DSQC scheme is constructed based on a new coding function, which is designed by exploiting the property of the corresponding logical Bell states immune to collective-dephasing noise and collective-rotation noise, respectively. The secret message can be encoded by two simple unitary operations and decoded by merely performing Bell measurements, which can make the proposed scheme more convenient in practical applications. Moreover, the strategy of one-step quanta transmission, together with the technique of decoy logical qubits checking not only reduces the influence of other noise existing in a quantum channel, but also guarantees the security of the communication between two legitimate users. The final analysis shows that the proposed schemes are feasible and robust against various well-known attacks over the collective noise channel. 展开更多
关键词 collective noise deterministic secure quantum communication logical Bell states
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Study of modeling unsteady blade row interaction in a transonic compressor stage part 1:code development and deterministic correlation analysis 认领 引用 被引量：6
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作者 Yang-Wei Liu Bao-Jie Liu Li-Peng Lu 《Acta Mechanica Sinica》 SCIE EI CAS CSCD 2012年第2期281-290,共10页
The average-passage equation system （APES） provides a rigorous mathematical framework for account- ing for the unsteady blade row interaction through multi- stage compressors in steady state environment by introduc-... The average-passage equation system （APES） provides a rigorous mathematical framework for account- ing for the unsteady blade row interaction through multi- stage compressors in steady state environment by introduc- ing deterministic correlations （DC） that need to be modeled to close the equation system. The primary purpose of this study is to provide insight into the DC characteristics and the influence of DC on the time-averaged flow field of the APES. In Part 1 of this two-part paper, firstly a 3D viscous unsteady and time-averaging flow CFD solver is developed to investi- gate the APES technique. Then steady and unsteady simu- lations are conducted in a transonic compressor stage. The results from both simulations are compared to highlight the significance of the unsteady interactions. Furthermore, the distribution characteristics of DC are studied and the DC at the rotor/stator interface are compared with their spatial cor- relations （SC）. Lastly, steady and time-averaging （employing APES with DC） simulations for the downstream stator alone are conducted employing DC derived from the unsteady re- suits. The results from steady and time-averaging simula- tions are compared with the time-averaged unsteady results. The comparisons demonstrate that the simulation employing APES with DC can reproduce the time-averaged field and the 3D viscous time-averaging flow solver is validated. 展开更多
关键词 Unsteady Blade row interaction Compressor.Deterministic correlation. Average-passage equation system~ CFD
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RANDOMIZATION METHOD OF DETERMINISTIC EQUATION FOR PROBABILITY FRACTURE MECHANICS 认领 引用 被引量：4
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作者 熊峻江 武哲 高镇同 《Chinese Journal of Aeronautics》 EI CAS 1999年第3期22-27,共6页
In order to obtain any probability of survival for crack growth life, a randomization method of deterministic equation for probability fracture mechanics is presented. According to this method, the deterministic equat... In order to obtain any probability of survival for crack growth life, a randomization method of deterministic equation for probability fracture mechanics is presented. According to this method, the deterministic equation of fracture mechanics is randomized to stochastic equation, and the parameters of the stochastic equation are estimated by means of the statistics. Three new kinds of random models to gain the p d a/ d N Δ K curve and the γ p d a/ d N Δ K curve (confidence level probability of survival fatigue crack growth rate stress intensity factor range curve) are proposed by using this randomization method. And the p d a/ d N Δ K curves and the γ p d a/ d N Δ K curves determined by these three models are discussed and compared according to the treatment result of the experimental data from CT specimens. From examples, it is found that the three deterministic fatigue crack growth rate equations determined by these models are very near and in agreement with the traditional deterministic fatigue crack growth rate equation, and these models are effectively and easily used to treat fatigue crack growth rate data. 展开更多
关键词 probability fracture mechanics randomization deterministic equation probability of survival confidence level
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An immune-swarm intelligence based algorithm for deterministic coverage problems of wireless sensor networks 认领 引用 被引量：1
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作者 LIU Ji-zhong WANG Bao-lei +2 位作者 AO Jun-yu S.H.WANG Q.M.Jonathan WU 《Journal of Central South University》 SCIE EI CAS 2012年第11期3154-3161,共8页
A novel immune-swarm intelligence(ISI)based algorithm for solving the deterministic coverage problems of wireless sensor networks was presented.It makes full use of information sharing and retains diversity from the p... A novel immune-swarm intelligence(ISI)based algorithm for solving the deterministic coverage problems of wireless sensor networks was presented.It makes full use of information sharing and retains diversity from the principle of particle swarm optimization(PSO)and artificial immune system(AIS).The algorithm was analyzed in detail and proper swarm size,evolving generations,gene-exchange individual order,and gene-exchange proportion in molecule were obtained for better algorithm performances.According to the test results,the appropriate parameters are about 50 swarm individuals,over 3000 evolving generations,20%-25%gene-exchange proportion in molecule with gene-exchange taking place between better fitness affinity individuals.The algorithm is practical and effective in maximizing the coverage probability with given number of sensors and minimizing sensor numbers with required coverage probability in sensor placement.It can reach a better result quickly,especially with the proper calculation parameters. 展开更多
关键词 wireless sensor network deterministic area coverage immune-swarm algorithm particle swarm optimization artificialimmune system
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Fault detection for nonlinear discrete-time systems via deterministic learning 认领 引用 被引量：2
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作者 Junmin HU Cong WANG Xunde DONG 《Control Theory and Technology》 EI CSCD 2016年第2期159-175,共17页
Recently,an approach for the rapid detection of small oscillation faults based on deterministic learning theory was proposed for continuous-time systems.In this paper,a fault detection scheme is proposed for a class o... Recently,an approach for the rapid detection of small oscillation faults based on deterministic learning theory was proposed for continuous-time systems.In this paper,a fault detection scheme is proposed for a class of nonlinear discrete-time systems via deterministic learning.By using a discrete-time extension of deterministic learning algorithm,the general fault functions(i.e.,the internal dynamics)underlying normal and fault modes of nonlinear discrete-time systems are locally-accurately approximated by discrete-time dynamical radial basis function(RBF)networks.Then,a bank of estimators with the obtained knowledge of system dynamics embedded is constructed,and a set of residuals are obtained and used to measure the differences between the dynamics of the monitored system and the dynamics of the trained systems.A fault detection decision scheme is presented according to the smallest residual principle,i.e.,the occurrence of a fault can be detected in a discrete-time setting by comparing the magnitude of residuals.The fault detectability analysis is carried out and the upper bound of detection time is derived.A simulation example is given to illustrate the effectiveness of the proposed scheme. 展开更多
关键词 Fault detection nonlinear discrete-time systems deterministic learning neural networks locally accurate modeling
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