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Journal of Systems Science & Complexity 2024年第1期37卷 136-151页

作者： pan Zini CHEN Ben M Department of Mechanical and Automation Engineering The Chinese University of Hong KongHong KongChina

In this paper,the authors study the cooperative target-fencing problem for n-dimensional systems and a target with a general *** using the velocity of the vehicles,a position feedback control law is proposed to fence the general target into the convex hull formed by the ***,the dynamics of each vehicle is described by a double-integrator *** potential functions are designed to guarantee connectivity preservation of the communication network and collision avoidance among the *** proposed approach can deal with a target whose trajectory is any twice continuously differentiable function of *** effectiveness of the result is verified by a numerical example.

关键词： Multi-agent systems networked systems target fencing

Data-driven systematic analysis of waterborne viruses and health risks during the wastewater reclamation process

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Environmental Science and Ecotechnology 2024年第3期19卷 80-90页

作者： Jia-xin Ma Xu Wang Yi-Rong pan Zhao-Yue Wang Xuesong Guo Junxin Liu Nan-Qi Ren David Butler Research Center for Eco-Environmental Sciences Chinese Academy of SciencesBeijing100085China State Key Laboratory of UrbanWater Resource and Environment School of Civil and Environmental EngineeringHarbin Institute of TechnologyShenzhenShenzhen518055China University of Chinese Academy of Sciences Beijing100049China Centre for Water Systems College of EngineeringMathematics and Physical SciencesUniversity of ExeterExeterEX44QFUnited Kingdom

Waterborne viral epidemics are a major threat to public *** interest in wastewater reclamation highlights the importance of understanding the health risks associated with potential microbial hazards,particularly for reused water in direct contact with *** study focused on identifying viral epidemic patterns in municipal wastewater reused for recreational applications based on long-term,spatially explicit global literature data during 2000e2021,and modelled human health risks from multiple exposure pathways using a well-established quantitative microbial risk assessment *** median viral loads in municipal wastewater ranged from 7.92×10^(4)to 1.4×10^(6)GC L^(-1)in the following ascending order:human adenovirus(HAdV),norovirus(NoV)GII,enterovirus(EV),NoV GI,rotavirus(RV),and severe acute respiratory syndrome coronavirus 2(SARSCoV-2).Following secondary or tertiary wastewater treatment,NoV GI,NoV GII,EV,and RV showed a relatively higher and more stable log reduction value with medians all above 0.8(84%),whereas SARSCoV-2 and HAdV showed a relatively lower reduction,with medians ranging from 0.33(53%)to 0.55(72%).A subsequent disinfection process effectively enhanced viral removal to over 0.89-log(87%).The predicted event probability of virus-related gastrointestinal illness and acute febrile respiratory illnesses in reclaimed recreational water exceeded the World Health Organization recommended recreational risk benchmark(5%and 1.9%,respectively).Overall,our results provided insights on health risks associated with reusing wastewater for recreational purposes and highlighted the need for establishing a regulatory framework ensuring the safety management of reclaimed waters.

关键词： Reclaimed water Waterborne virus Recreational Human health Data-driven analysis

Global Tangentially Analytical Solutions of the 3D Axially Symmetric Prandtl Equations

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Chinese Annals of Mathematics,Series B 2024年第4期45卷 573-596页

作者： xinghong pan Chaojiang XU School of Mathematics and Key Laboratory of MIIT Nanjing University of Aeronautics and AstronauticsNanjing 211106China School of Mathematics and Key Laboratory of MIIT Nanjing University of Aeronautics and AstronauticsNanjing 211106Chinaand Laboratoire de Mathématiques Raphaël SalemUMR 6085 CNRSUniversitéde Rouen Normandie76801 Saint-Étienne-du-RouvrayFrance.

In this paper,the authors will prove the global existence of solutions to the three dimensional axially symmetric Prandtl boundary layer equations with small initial data,which lies in H1Sobolev space with respect to the normal variable and is analytical with respect to the tangential *** main novelty of this paper relies on careful constructions of a tangentially weighted analytic energy functional and a specially designed good unknown for the reformulated *** result extends that of Paicu-Zhang in[Paicu,*** Zhang,P.,Global existence and the decay of solutions to the Prandtl system with small analytic data,***.,241(1),2021,403–446].from the two dimensional case to the three dimensional axially symmetric case,but the method used here is a direct energy estimates rather than Fourier analysis techniques applied there.

关键词： Global existence Tangentially analytical solutions Axially symmetric Prandtl equations

Residual inflammatory risk predicts long-term outcomes following stenting for symptomatic intracranial atherosclerotic stenosis

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Stroke & Vascular Neurology 2024年第4期9卷 407-417页

作者： Ying Yu Yake Lou Yuesong pan Long Yan Weilun Fu Zhikai Hou Rongrong Cui Zhongrong Miao yongjun Wang xin Lou Ning Ma Department of Interventional Neuroradiology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalBeijingChina Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Department of Cardiology The Second Affiliated Hospital of Chongqing Medical UniversityChongqingChina Department of Neurology Beijing Daxing District People's HospitalBeijingChina Radiology Chinese PLA General HospitalBeijingChina

Background and purpose Residual inflammatory risk(RIR)can predict the unfavourable outcomes in patients with minor ischaemic ***,the impact of preprocedural RIR on long-term outcomes in patients with symptomatic intracranial atherosclerotic stenosis(sICAS)who underwent stenting remains *** This retrospective,single-centre cohort study evaluated consecutive patients with severe sICAS who underwent intracranial *** were categorised into four groups based on preprocedural high-sensitivity C-reactive protein(hs-CRP)and low-density lipoprotein cholesterol(LDL-C):residual cholesterol inflammatory risk(RCIR,hs-CRP≥3 mg/L and LDL-C≥2.6 mmol/L),RIR(hs-CRP≥3 mg/L and LDL-C<2.6 mmol/L),residual cholesterol risk(RCR,hs-CRP<3 mg/L and LDL-C≥2.6 mmol/L)and no residual risk(NRR,hs-CRP<3 mg/L and LDL-C<2.6 mmol/L).The long-term clinical outcomes included recurrent ischaemic stroke and *** long-term imaging outcomes consisted of in-stent restenosis(ISR)and symptomatic ISR(sISR)after *** In this study,952 patients were included,with 751(78.9%)being ***-six cases were categorised into the RCIR group,211 into the RIR group,107 into the RCR group and 588 into the NRR *** with RCIR(adjusted HR 6.163;95%CI 2.603 to 14.589;p<0.001)and RIR(adjusted HR 2.205;95%CI 1.294 to 3.757;p=0.004)had higher risks of recurrent ischaemic stroke than those with NRR during the 54 months of median follow-up *** with RCIR(adjusted HR 3.604;95%CI 1.431 to 9.072;p=0.007)were more likely to occur ISR,and patients in the RIR group showed a significant increase in the risk of sISR(adjusted HR 2.402;95%CI 1.078 to 5.351;p=0.032)compared with those in the NRR group with a median follow-up time of 11.9 *** In patients with sICAS,preprocedural RIR may predict long-term recurrent ischaemic stroke,ISR and sISR following intracranial stenting.

关键词： intracranial stenosis symptomatic

Expert consensus on endodontic therapy for patients withsystemic conditions

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International Journal of Oral Science 2024年第3期16卷 390-397页

作者： xin Xu xin Zheng Fei Lin Qing Yu Benxiang Hou Zhi Chen Xi Wei Lihong Qiu Wenxia Chen Jiyao Li Lili Chen Zuomin Wang Hongkun Wu Zhiyue Lu Jizhi Zhao Yuhong Liang Jin Zhao Yihuai pan Shuang pan Xiaoyan Wang Deqin Yang Yanfang Ren Lin Yue Xuedong Zhou State Key Laboratory of Oral Diseases&National Clinical Research Center for Oral Diseases&Department of Cariology and Endodontics West China Hospital of StomatologySichuan UniversityChengduChina Department of Cariology and Endodontology Peking University School and Hospital of Stomatology&National Clinical Research Center for Oral Diseases&National Engineering Research of Oral Biomaterials and Digital Medical Devices&Beijing Key Laboratory of Digital StomatologyPeking UniversityBeijingChina State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration National Clinical Research Center for Oral DiseasesShaanxi Key Laboratory of Oral DiseasesDepartment of Operative Dentistry&EndodonticsSchool of StomatologyThe Fourth Military Medical UniversityXi’anChina Center for Microscope Enhanced Dentistry Beijing Stomatological HospitalCapital Medical UniversityBeijingChina State Key Laboratory of Oral&Maxillofacial Reconstruction and Regeneration Key Laboratory of Oral Biomedicine Ministry of EducationHubei Key Laboratory of StomatologySchool&Hospital of StomatologyWuhan UniversityWuhanChina Department of Operative Dentistry and Endodontics Hospital of StomatologyGuanghua School of StomatologySun Yat-Sen University&Guangdong Provincial Key Laboratory of StomatologyGuangzhouChina Department of Endodontics School of StomatologyChina Medical UniversityShenyangChina College&Hospital of Stomatology Guangxi Medical UniversityNanningChina Department of Stomatology Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanChina Department of Stomatology Beijing Chaoyang HospitalCapital Medical UniversityBeijingChina State Key Laboratory of Oral Diseases&National Center for Stomatology&National Clinical Research Center for Oral Diseases&Department of Geriatric Dentistry West China Hospital of StomatologySichuan UniversityChengduChina Beijing Hospital National Center of GerontologyBeijingChina Department of Stomatology Peking Union Medical College Hospit

The overall health condition of patients significantly affects the diagnosis, treatment, and prognosis of endodontic diseases. Asystemic consideration of the patient’s overall health along with oral conditions holds the utmost importance in determining thenecessity and feasibility of endodontic therapy, as well as selecting appropriate therapeutic approaches. This expert consensus is acollaborative effort by specialists from endodontics and clinical physicians across the nation based on the current clinical evidence,aiming to provide general guidance on clinical procedures, improve patient safety and enhance clinical outcomes of endodontictherapy in patients with compromised overall health.

关键词： patients diagnosis prognosis

Polynomial-Time Key-Recovery Attacks Against NTRURe Encrypt from ASIACCS'15

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Journal of Systems Science & Complexity 2024年第3期37卷 1308-1325页

作者： LIU Zhen pan Yanbin ZHENG Jinwei School of Cyber Science and Technology Hubei Key Laboratory of Applied MathematicsHubei UniversityWuhan 430062China Key Laboratory of Mathematics Mechanization Academy of Mathematics and Systems ScienceChinese Academy of SciencesBeijing 100190China School of Mathematical Sciences University of Chinese Academy of SciencesBeijing 100190China

In ASIACCS 2015, Nu nez, et al. proposed a proxy re-encryption scheme, named NTRURe Encrypt, based on NTRU, which allows a proxy to translate ciphertext under the delegator’s public key into a re-encrypted ciphertext that can be decrypted correctly by delegatee’s private key. Because of the potential resistance to quantum algorithm, high efficiency and various applications in real life,NTRURe Encrypt has drawn lots of attention and its security has been widely discussed and *** PQCrypto2019, Liu, et al. proposed two key recovery attacks against it. However, their first attack heavily relies on a weaken decryption oracle, and the second attack needs to collect about 260ciphertexts from the same message by theoretical analysis, which makes both of the attacks unrealistic. In this paper, inspired by the broadcast attack against NTRU, the authors find out that for NTRURe Encrypt the delegator and the delegatee can efficiently recover each other’s private key in polynomial time without any unrealistic assumptions. In addition, the authors also show how to fix NTRURe Encrypt to resist the proposed attacks. As a by-product, the authors also show how to commit broadcast attacks against NTRU 2001 with even dg, which was thought infeasible before.

关键词： Broadcast attack key recovery NTRU NTRUReEncrypt

FlowGANAnomaly: Flow-Based Anomaly Network Intrusion Detection with Adversarial Learning

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Chinese Journal of Electronics 2024年第1期33卷 58-71页

作者： Zeyi LI pan WANG Zixuan WANG School of Computer Science Nanjing University of Posts and Telecommunications School of Modern Posts Nanjing University of Posts and Telecommunications School of Internet of Things Nanjing University of Posts and Telecommunications

In recent years, low recall rates and high dependencies on data labelling have become the biggest obstacle to developing deep anomaly detection(DAD) techniques. Inspired by the success of generative adversarial networks(GANs) in detecting anomalies in computer vision and imaging, we propose an anomaly detection model called Flow GANAnomaly for detecting anomalous traffic in network intrusion detection systems(NIDS). Unlike traditional GAN-based approaches, which are composed of a flow encoder, a convolutional encoder-decoder-encoder, a flow decoder and a convolutional encoder, the architecture of this model consists of a generator(G) and a discriminator(D).Flow GANAnomaly maps the different types of traffic feature data from separate datasets to a uniform feature space,thus can capture the normality of network traffic data more accurately in an adversarial manner to mitigate the problem of the high dependence on data labeling. Moreover, instead of simply detecting the anomalies by the output of D, we proposed a new anomaly scoring method that integrates the deviation between the output of two Gs’ convolutional encoders with the output of D as weighted scores to improve the low recall rate of anomaly detection. We conducted several experiments comparing existing machine learning algorithms and existing deep learning methods(Auto Encoder and VAE) on four public datasets(NSL-KDD, CIC-IDS2017, CIC-DDo S2019, and UNSW-NB15). The evaluation results show that Flow GANAnomaly can significantly improve the performance of anomaly-based NIDS.

关键词： Deep learning Machine learning algorithms Computational modeling Network intrusion detection Imaging Telecommunication traffic Generative adversarial networks

Construction of CDKN2A-related competitive endogenous RNA network and identification of GAS5 as a prognostic indicator for hepatocellular carcinoma

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World Journal of Gastrointestinal Oncology 2024年第4期16卷 1514-1531页

作者： yong pan Yi-Ru Zhang Ling-Yun Wang Li-Na Wu Ying-Qiu Ma Zhou Fang Shi-Bo Li Department of Infectious Disease Zhoushan HospitalWenzhou Medical UniversityZhoushan 316021Zhejiang ProvinceChina State Key Laboratory for the Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital of Zhejiang UniversityHangzhou 310003Zhejiang ProvinceChina Department of Infectious Disease The First Affiliated Hospital of Wenzhou Medical UniversityWenzhou 325035Zhejiang ProvinceChina

BACKGROUND Competitive endogenous RNA(ceRNA)is an innovative way of gene expression modulation,which plays a crucial part in ***,the intricacy and behavioral characteristics of the ceRNA network in hepatocellular carcinoma(HCC)remain *** To establish a cyclin dependent kinase inhibitor 2A(CDKN2A)-related ceRNA network and recognize potential prognostic indicators for *** The mutation landscape of CDKN2A in HCC was first explored using the cBioPortal *** expression analysis was implemented between CDKN2Ahigh and CDKN2Alow expression HCC *** targeted microRNAs were predicted by lncBasev3.0,and the targeted mRNAs were predicted by miRDB,and Targetscan *** univariate and multivariate analysis were utilized to identify independent prognostic *** CDKN2A was frequently mutated and deleted in *** single-cell RNA-sequencing analysis revealed that CDKN2A participated in cell cycle *** CDKN2A-related ceRNA network-growth arrest specific 5(GAS5)/miR-25-3p/SRY-box transcription factor 11(SOX11)was successfully ***5 was recognized as an independent prognostic biomarker,whose overexpression was correlated with a poor prognosis in HCC *** association between GAS5 expression and methylation,immune infilt-ration was ***,traditional Chinese medicine effective components targeting GAS5 were *** This CDKN2A-related ceRNA network provides innovative insights into the molecular mechanism of HCC formation and ***,GAS5 might be a significant prognostic biomarker and therapeutic target in HCC.

关键词： Hepatocellular carcinoma Competitive endogenous RNA Molecular mechanism Prognosis Biomarker

Research Progress on Bio‑inspired Flapping‑Wing Rotor Micro Aerial Vehicle Development

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Journal of Bionic Engineering 2024年第4期21卷 1621-1643页

作者： Yingjun pan Shijun Guo Xun Huang Centre for Aeronautics School of AerospaceTransport and ManufacturingCranfield UniversityBedford MK430ALUK

Flapping-wing rotor(FWR)is an innovative bio-inspired micro aerial vehicle capable of vertical take-off and *** unique design combines active flapping motion and passive wing rotation around a vertical central shaft to enhance aerodynamic *** research on FWR,though relatively new,has contributed to 6%of core journal publications in the micro aerial vehicle field over the past two *** paper presents the first comprehensive review of FWR,analysing the current state of the art,key advances,challenges,and future research *** review highlights FWR’s distinctive kinematics and aerodynamic superiority compared to traditional flapping wings,fixed wings,and rotary wings,discussing recent breakthroughs in efficient,passive wing pitching and asymmetric stroke amplitude for lift *** experiments and remote-controlled take-off and hovering tests of single and dual-motor FWR models have showcased their *** review compares FWR flight performance with well-developed insect-like flapping-wing micro aerial vehicles as the technology readiness level progresses from laboratory to outdoor flight testing,advancing from the initial flight of a 2.6 g prototype to the current free flight of a 60-gram *** review also presents ongoing research in bionic flexible wing structures,flight stability and control,and transitioning between hovering and cruise flight modes for an FWR,setting the stage for potential applications.

关键词： Flapping-wing rotor Micro aerial vehicle Bio-inspiration Flight

Depth-Guided Vision Transformer With Normalizing Flows for Monocular 3D Object Detection

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IEEE/CAA Journal of Automatica Sinica 2024年第3期11卷 673-689页

作者： Cong pan Junran Peng Zhaoxiang Zhang the Center for Research on Intelligent Perception and Computing(CRIPAC) National Laboratory of Pattern Recognition(NLPR)Institute of AutomationChinese Academy of Sciences(CASIA)Beijing 100190 the School of Future Technology University of Chinese Academy of Sciences(UCAS)Beijing 100049China the Huawei Inc. Beijing 100085China IEEE the Institute of Automation Chinese Academy of Sciences(CASIA)Beijing 100190 the University of Chinese Academy of Sciences(UCAS) Beijing 100049 the Centre for Artificial Intelligence and Robotics Hong Kong Institute of Science&Innovation Chinese Academy of Sciences(HKISI CAS)Hong Kong 999077China

Monocular 3D object detection is challenging due to the lack of accurate depth *** methods estimate the pixel-wise depth maps from off-the-shelf depth estimators and then use them as an additional input to augment the RGB ***-based methods attempt to convert estimated depth maps to pseudo-LiDAR and then use LiDAR-based object detectors or focus on the perspective of image and depth fusion ***,they demonstrate limited performance and efficiency as a result of depth inaccuracy and complex fusion mode with *** from these approaches,our proposed depth-guided vision transformer with a normalizing flows(NF-DVT)network uses normalizing flows to build priors in depth maps to achieve more accurate depth *** we develop a novel Swin-Transformer-based backbone with a fusion module to process RGB image patches and depth map patches with two separate branches and fuse them using cross-attention to exchange information with each ***,with the help of pixel-wise relative depth values in depth maps,we develop new relative position embeddings in the cross-attention mechanism to capture more accurate sequence ordering of input *** method is the first Swin-Transformer-based backbone architecture for monocular 3D object *** experimental results on the KITTI and the challenging Waymo Open datasets show the effectiveness of our proposed method and superior performance over previous counterparts.

关键词： Monocular 3D object detection normalizing flows Swin Transformer