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Secure vehicular data communication in Named Data Networking

Digital Communications and Networks 2023年第1期9卷 203-210页

作者： Xiaonan Wang Xilan Chen Xingwei Wang School of Computer Science and Engineering Changshu Institute of TechnologyChangshu215500China School of Computer Science and Technology Northeastern UniversityShenyang110169China

Vehicular data misuse may lead to traffic accidents and even loss of life,so it is crucial to achieve secure vehicular data *** paper focuses on secure vehicular data communications in the Named Data Networking(NDN).In NDN,names,provider IDs and data are transmitted in plaintext,which exposes vehicular data to security threats and leads to considerable data communication costs and failure *** paper proposes a Secure vehicular Data Communication(SDC)approach in NDN to supress data communication costs and failure *** constructs a vehicular backbone to reduce the number of authenticated nodes involved in reverse *** the ciphtertext of the name and data is included in the signed Interest and Data and transmitted along the backbone,so the secure data communications are *** is evaluated,and the data results demonstrate that SCD achieves the above objectives.

关键词： Named data networking Reverse path Secure data communication

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Combinatorial optimization algorithm for workshop scheduling

Combinatorial optimization algorithm for workshop scheduling

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2023 International Conference on Automation Control, Algorithm, and Intelligent Bionics, ACAIB 2023

作者： Cao, Wensheng Chen, Bin School of Computer Science and Technology Harbin Institute of Technology Harbin China

ISBN: (纸本)9781510667662

This paper studies the problem of production scheduling in a discrete production workshop, which involves the selection of equipment and the sequence of processes. Firstly, two vector coding structures are used to represent the solution to the problem. Secondly, to solve the problem of difficult search in the case of many devices, this paper improves the music chair algorithm, which has a fast convergence speed. Then, the algorithm is combined with Pareto optimality and an improved fuzzy decision-maker to solve the multi-objective production scheduling problem. Finally, it is compared with the genetic algorithm, the particle swarm optimization algorithm, and the simulated annealing algorithm to solve the single-objective scheduling problem on the actual production scheduling data. The results show that the algorithm can quickly converge on the optimal solution. Compared with the non-dominated genetic algorithm II and the multi-objective evolutionary algorithm based on decomposition to solve the multi-objective scheduling problem, the results show that this method can solve the multi-objective scheduling problem better. © 2023 SPIE.

关键词： Genetic algorithms

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A survey of discourse parsing

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Frontiers of computer science 2022年第5期16卷 85-96页

作者： Jiaqi LI Ming LIU Bing QIN Ting LIU School of Computer Science and Technology Harbin Institute of TechnologyHarbin 150001China Peng Cheng Laboratory Shenzhen 518052China

Discourse parsing is an important research area in natural language processing(NLP),which aims to parse the discourse structure of coherent *** this survey,we introduce several different kinds of discourse parsing tasks,mainly including RST-style discourse parsing,PDTB-style discourse parsing,and discourse parsing for multiparty *** these tasks,we introduce the classical and recent existing methods,especially neural network *** that,we describe the applications of discourse parsing for other NLP tasks,such as machine reading comprehension and sentiment ***,we discuss the future trends of the task.

关键词： discourse parsing discourse structure RST PDTB STAC

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Pushing the limits of microwave absorption capability of carbon fiber in fabric design based on genetic algorithm

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Journal of Advanced Ceramics 2023年第2期12卷 329-340页

作者： Yuhao LIU Xiaoxiao HUANG Xu YAN Long XIA Tao ZHANG Jiahao SUN Yanan LIU Yu ZHOU State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China Beijing Institute of Radio Measurement China Aerospace Science and Industry Corporation LimitedBeijing 100854China School of Materials Science and Engineering Harbin Institute of TechnologyWeihaiWeihai 264209China

The field of electromagnetic wave absorption(EWA)requires the adaptability,tenability,and multifunction of high-performance materials in the *** design and preparation of EWA materials aiming at performance requirements is the latest research ***,a performancedriven strategy for simultaneously coordinating different target performances was proposed to optimize the structure of the periodical long continuous carbon/glass fiber fabric(PCGF)materials through algorithm and *** optimized structure of the PCGF not only improves the impedance matching,but also introduces the induced orientation effect for a high cooperative loss of conductivity,resonance,and periodic *** flexible PCGF shows a broad effective absorption bandwidth(EAB)of 32.7 GHz covering a part of the C-band and the whole X-,Ku-,K-,and Ka-bands with a thickness(d)of only 0.92 mm and a density of 5.6×10^(−4) kg·cm^(−3).This highly designable fabric is promising for the EWA practical application owing to integrating the characteristics of good flexibility,acid and alkali resistance,bending resistance,excellent mechanical properties,and easy large-scale preparation.

关键词： broadband microwave absorption carbon fiber impedance matching periodical long continuous carbon/glass fiber fabric(PCGF) multiple loss mechanism

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IRPRI: An immune-related prognostic risk indicator for patients with lymphatic invasive colon cancer

IRPRI: An immune-related prognostic risk indicator for patie...

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2023 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2023

作者： Liu, Yue Hu, Yang Wang, Yadong Harbin Institute of Technology School of Computer Science and Technology Harbin China

ISBN: (纸本)9798350337488

Both immune-related genes and tumor-infiltrating immune cells are sources of important prognostic information for patients with lymphatic invasive colon cancer. In this study, we first collected immune-related gene sets from immune-related databases, and immune cell types reflecting the tumor immune microenvironment obtained by deconvolution algorithm. Then, differentially expressed immune-related genes derived from weighted gene co-expression network analysis and differentially expressed immune cell types were used to construct a robust immune-related prognostic risk indicator (IRPRI) including 12 immune-related genes and 1 immune cell type after performing both univariate and multivariate Cox regression analyses, respectively. Afterward, we characterized the molecular and immune features between defined subgroups of IRPRI. We found significant differences in survival time and clinical features between high- and low-risk group samples. IRPRI serves as a potential prognostic indicator for colorectal cancer patients and may also contribute to evaluating the potential of immunotherapy for patients. © 2023 IEEE.

关键词： colon cancer immune cells immune-related genes immune-related prognostic risk indicator (IRPRI) prognostic indicator

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Effect of liquid viscoelasticity on the interactions between cavitation bubbles and free surfaces

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Journal of Hydrodynamics 2023年第5期35卷 887-898页

作者： Yang Liu Zhi-ying Zheng Zhi-bo He Tian-bao Zeng David Ezekoye Wei-hua Cai Hong Qi School of Energy Science and Engineering Harbin Institute of TechnologyHarbin150001China School of Civil Engineering Harbin Institute of TechnologyHarbin150090China School of Energy and Power Engineering Northeast Electric Power UniversityJilin132012China

The influence of liquid viscoelasticity on the interaction between cavitation bubbles and free surfaces is of great practical significance in understanding bubble dynamics in biological systems. A series of millimeter cavitation bubbles were induced by laser near the free surfaces of the water and viscoelastic polyacrylamide (PAM) solutions with different concentrations. The effects of liquid viscoelasticity on the interactions of cavitation bubbles with free surfaces are analyzed from the perspectives of the evolution of free surface and bubble dynamics. The experimental results show that as the dimensionless standoff distance increases, the evolutions of free surface behaviors in all experimental fluids can be divided into six types of water mounds, i.e., breaking wrinkles, spraying water film, crown, swallowed water spike, hillock, and slight bulge. All the critical values of the dimensionless distance dividing different types decrease with increasing concentration. The evolutions of first four types of water mounds in PAM solutions differ from those in the water. Water droplets splashing in different directions are produced around the breaking wrinkles in the water. Meanwhile, the breaking wrinkles in PAM solution move with the “liquid filaments” towards the central axis. The water spike in the pattern of spraying water film in PAM solution is more stable than that in the water. As the solution concentration increases, the water skirt in the pattern of crown contracts earlier and faster, and the rate of increase in the height of the water skirt decreases. For swallowed water spike in PAM solution, the upper part of the newly formed water spike is not significantly thicker than the middle part, and thus the water waist structure does not form. Liquid viscoelasticity inhibits the bubble growth and collapse, and the bubble migration as well, especially in the second period. Shorter and thicker cavities are formed in PAM solutions with higher concentration, while sl

关键词： Viscoelasticity cavitation bubble free surface water mound bubble dynamics

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Cu-Cu low-temperature diffusion bonding by spark plasma sintering:Void closure mechanism and mechanical properties

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Journal of Materials science & technology 2023年第8期139卷 210-223页

作者： Wendi Li Yuxin Liang Yang Bai Tiesong Lin Bangsheng Li Jicai Feng School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China State Key Laboratory of Advanced Welding and Joining Harbin Institute of TechnologyHarbin 150001China National Key Laboratory for Precision Hot Processing of Metals Harbin Institute of TechnologyHarbin 150001China

In this study,combining the single point diamond turning(SPDT)and spark plasma sintering(SPS),we achieved high-strength diffusion bonding of copper at an ultra-low temperature of 202℃(0.35 T_(m),T_(m):absolute temperature of the melting point).Additionally,the closure mechanism of interfacial micro-and nano-voids during the Cu-Cu SPS diffusion bonding is systematically revealed for the first *** micro-voids,the pulsed current is found to induce additional diffusion flux and plastic deformation,thereby facilitating the void *** dynamics(MD)simulation revealed that at the atomic scale,high-energy Cu atoms induced by the pulsed current can significantly promote the diffusion of low-energy atoms in their vicinity and accelerate the void *** study also proposes a novel“evaporation-deposition”nano-void closure mechanism for the previously unstudied nano-void closure *** results show that the synergistic effect of the pulsed current and nanoscale surface rough-ness can significantly improve joint *** a low temperature of 405℃(0.5 T_(m)),on combining the computerized numerical control(CNC)turning and SPS diffusion bonding,the joint strength can reach 212 MPa,while that for the joint obtained by traditional hot pressing diffusion bonding at the same tem-perature is only 47 *** obtained an ultra-high joint strength of 271 MPa using the combined process of SPDT and SPS diffusion bonding at an ultra-low temperature of 202℃(0.35 T_(m)),which is approximately 600℃ lower than the traditional diffusion bonding process temperature of 800℃(0.79 T_(m)).To sum up,this study provides a novel method and theoretical support for realizing low-temperature high-strength diffusion bonding.

关键词： Spark plasma sintering Diffusion bonding Void closure mechanism Mechanical property Molecular dynamics

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Pan-cancer analysis of HAVCR2 based on machine learning: A potential target of survival and immunotherapy

Pan-cancer analysis of HAVCR2 based on machine learning: A p...

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2023 IEEE International Conference on Bioinformatics and Biomedicine, BIBM 2023

作者： Guo, Yu Wang, Yadong Wang, Yukai Hu, Yang Harbin Institute of Technology School of Computer Science and Technology Harbin China

ISBN: (纸本)9798350337488

Hepatitis A virus cellular receptor 2 (HAVCR2) is an immune checkpoint inhibitor, whose expression is closely associated with tumor exhaustion. However, there is no systemic pan-cancer analysis of HAVCR2. Our study aims to understand its multi-omics profiles, genetic alterations, prognostic significance, biological functions, immune infiltration patterns, and the relationship with drug sensitivity using multi-omics bioinformatics from public databases. HAVCR2 was significantly upregulated in 24 types of cancers and associated with prognosis, as indicated by a comprehensively integrated analysis of The Cancer Genome Atlas and Genotype-Tissue Expression portals. The DNA methylation and protein levels of HAVCR2 were also assessed in pan-cancer by UALCAN and CPTAC. Besides, high HAVCR2 expression group in different cancers was associated with worse or better prognosis for overall survival and disease-free survival. Further, pathways involved in HAVCR2 were all associated with human immunity. Then, HAVCR2 expression exhibited significantly and positively correlated with DCs, CD4+ T cells, neutrophils, and macrophages in most cancers, but had almost no correlation with all immune cells in some cancers, which might mean that HAVCR2 hardly affects the immune microenvironment of these cancers. Besides, HAVCR2 was positively correlated with most known immunomodulatory genes, especially CCR1, CCR5, PDCD1LG2, and CD86. Totally, our work provided new insights and theoretical basis for HAVCR2 as a drug target. © 2023 IEEE.

关键词： HAVCR2 immunosuppression immunotherapeutic immunotherapeutic target pan-cancer

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MCWOA Scheduler:Modified Chimp-Whale Optimization Algorithm for Task Scheduling in Cloud Computing

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computers, Materials & Continua 2024年第2期78卷 2593-2616页

作者： Chirag Chandrashekar Pradeep Krishnadoss Vijayakumar Kedalu Poornachary Balasundaram Ananthakrishnan School of Computer Science and Engineering Vellore Institute of TechnologyChennai600127India Center for Cyber Physical Systems School of Computer Science and EngineeringVellore Institute of TechnologyChennai600127India

Cloud computing provides a diverse and adaptable resource pool over the internet,allowing users to tap into various resources as *** has been seen as a robust solution to relevant challenges.A significant delay can hamper the performance of IoT-enabled cloud ***,efficient task scheduling can lower the cloud infrastructure’s energy consumption,thus maximizing the service provider’s revenue by decreasing user job processing *** proposed Modified Chimp-Whale Optimization Algorithm called Modified Chimp-Whale Optimization Algorithm(MCWOA),combines elements of the Chimp Optimization Algorithm(COA)and the Whale Optimization Algorithm(WOA).To enhance MCWOA’s identification precision,the Sobol sequence is used in the population initialization phase,ensuring an even distribution of the population across the solution ***,the traditional MCWOA’s local search capabilities are augmented by incorporating the whale optimization algorithm’s bubble-net hunting and random search mechanisms into MCWOA’s position-updating *** study demonstrates the effectiveness of the proposed approach using a two-story rigid frame and a simply supported beam *** outcomes reveal that the new method outperforms the original MCWOA,especially in multi-damage detection *** excels in avoiding false positives and enhancing computational speed,making it an optimal choice for structural damage *** efficiency of the proposed MCWOA is assessed against metrics such as energy usage,computational expense,task duration,and *** simulated data indicates that the new MCWOA outpaces other methods across all *** study also references the Whale Optimization Algorithm(WOA),Chimp Algorithm(CA),Ant Lion Optimizer(ALO),Genetic Algorithm(GA)and Grey Wolf Optimizer(GWO).

关键词： Cloud computing scheduling chimp optimization algorithm whale optimization algorithm

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Metal flow hysteresis behavior and shape control strategy during porthole die extrusion of micro heat pipe

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Chinese Journal of Aeronautics 2023年第7期36卷 268-281页

作者： Yongda LIU Jie XU Xiaoliang WANG Debin SHAN Bin GUO Key Laboratory of Micro-Systems and Micro-Structures Manufacturing of Ministry of Education Harbin Institute of TechnologyHarbin 150080China School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China

The shape control strategy of micro grooves is still unclear and challenging during the porthole die extrusion of grooved micro heat pipe(MHP).Through the simulation and experiment of porthole die extrusion of a MHP profile,the metal flow hysteresis behavior within micro features and the effect of ram speed and extrusion temperature on it and the resulting forming integrity was ***,Taguchi design and variance analysis(ANOVA)were introduced to determine their influence magnitude on the metal flow uniformity calculated by simulation *** main findings are given *** metal flow hysteresis derives from part feature size *** negligible friction-affected area during conventional extrusion severely slows down the metal flow within micro features during the MHP profile extrusion,which is due to the surge in the area ratio of the friction-affected area to the region in which it is *** ram speed nor extrusion temperature can change the distribution of the friction-affected ***,increasing ram speed multiplies the metal flow hysteresis and severely reduces the forming integrity,whereas extrusion temperature has little *** this strategy,batch extrusion of the profile with microgrooved width of 0.27±0.02 mm was achieved in industrialized conditions.

关键词： Micro heat pipe Microforming Size effect Porthole die extrusion Metal flow Forming integrity Microstructure

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