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Journal of Systems Science and Systems Engineering 2023年第4期32卷 483-513页

作者： ling pan Zeshui Xu Business School Sichuan UniversityChengdu 610064China

Social trust network(STN)and minimum cost consensus(MCC)models have been widely used to address consensus issues in multi-attribute group decision-making(MAGDM)problems with limited ***,most researchers have overlooked the decision maker‘(DMs)’confidence levels(CLs)and adjustment willingness implicit in their *** address these problems,this paper explores a confidence-based MCC model that considers DMs’adjustment willingness in the *** proposed model includes several modifications to the traditional trust propagation and consensus optimization ***,the improved method for measuring CLs of DMs and the confidence-based normalization approach are defined,***,the bounded trust propagation operator is proposed,which considers the credibility of mediators to complete the ***,the identification rules based on the consensus index and CL are defined,and the MCC model with personalized cost functions and acceptable adjustment thresholds is built to automatically generate adjustment values for non-consensus ***,a model to identify the non-cooperative behavior at the element level is established and the hybrid MCC model with persuasion strategies is ***,a case study is processed to verify the applicability of the proposed model,and comparison and sensitivity analysis are conducted to highlight its benefits.

关键词： Confidence level social trust network bounded trust propagation minimum cost consensus models multi-attribute group decision making

A hierarchical blockchain-enabled security-threat assessment architecture for IoV

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Digital Communications and Networks 2024年第4期10卷 1035-1047页

作者： Yuanni Liu ling pan Shanzhi Chen School of Cyber Security and Information Law Chongqing University of Posts and TelecommunicationsChongqing400065China State Key Laboratory of Wireless Mobile Communications China Academy of Telecommunication TechnologyBeijing100191China

In Internet of Vehicles(IoV),the security-threat information of various traffic elements can be exploited by hackers to attack vehicles,resulting in accidents,privacy ***,it is necessary to establish security-threat assessment architectures to evaluate risks of traffic elements by managing and sharing securitythreat ***,most assessment architectures process data in a centralized manner,causing delays in query *** address this issue,in this paper,a Hierarchical Blockchain-enabled Security threat Assessment Architecture(HBSAA)is proposed,utilizing edge chains and global chains to share *** addition,data virtualization technology is introduced to manage multi-source heterogeneous data,and a metadata association model based on attribute graph is designed to deal with complex data *** order to provide high-speed query service,the ant colony optimization of key nodes is designed,and the HBSAA prototype is also developed and the performance is *** results on the large-scale vulnerabilities data gathered from NVD demonstrate that the HBSAA not only shields data heterogeneity,but also reduces service response time.

关键词： Internet of vehicles Blockchain Edge computing Data virtualization Data service composition

Effect of Ellipsoidal Particle Shape on Tribological Properties of Lubricants Containing Nanoparticles

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Chinese Journal of Mechanical Engineering 2024年第4期37卷 231-242页

作者： ling pan Zhi Li Yunhui Chen Guobin Lin School of Advanced Manufacturing Fuzhou UniversityQuanzhou 362251FujianChina School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou 350108FujianChina

Adding nanoparticles can significantly improve the tribological properties of ***,there is a lack of understanding regarding the influence of nanoparticle shape on lubrication *** this work,the influence of diamond nanoparticles(DNPs)on the tribological properties of lubricants is investigated through friction ***,the friction characteristics of lubricants regarding ellipsoidal particle shape are investigated using molecular dynamics(MD)*** results show that DNPs can drastically lower the lubricant's friction coefficientμfrom 0.21 to *** shearing process reveals that as the aspect ratio(α)of the nanoparticles approaches 1.0,the friction performance improves,and wear on the wall *** the same time,the shape of the nanoparticles tends to be *** 0.85≤α≤1.0,rolling is ellipsoidal particles'main form of motion,and the friction force changes according to a periodic sinusoidal *** the range of 0.80≤α<0.85,ellipsoidal particles primarily exhibit sliding as the dominant movement ***αdecreases within this range,the friction force progressively *** friction coefficientμcalculated through MD simulation is 0.128,which is consistent with the experimental data.

关键词： Molecular dynamics simulation Nanoparticle additives Ellipsoidal particles Tribological properties

Extraction Hydrolysates from Larimichthys Polyactis Swim Bladder Using Enzymatic Hydrolysis

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Journal of Renewable Materials 2021年第6期9卷 1099-1109页

作者： ling pan Yubo Tao Peng Li College of Material Science and Engineering Northeast Forestry UniversityHarbin150040China State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan250353China

As a kind of biopolymer,hydrolysates of fish swim bladder,safer than those of land mammals,are widely used in food,cosmetics as well as pharmaceutical and biomedical fields for their biocompatibility,biodegradability,and weak *** enhance hydrolysate production,in this paper,the papain and alcalase hydrolysis processes of larimichthys polyactis swim bladder were optimized with orthogonal *** 89.5%hydrolysate yield,the optimal processing conditions for alcalase were solid-liquid ratio of 1:30,enzyme concentration of 0.7%,and extraction time of 6 *** for papain,under the optimal processing conditions:solid-liquid ratio of 1:20,enzyme concentration of 0.5%,and extraction time of 8 h,the hydrolysate yield was 65.1%.To obtain higher hydrolysate yields,the ultrasonic pretreatments were implemented before the optimal enzyme hydrolysis *** ultrasonic waves of 100 W for 50 min,the hydrolysate yields were increased 2.1%(alcalase)and 4.5%(papain),*** Fourier Transform Infrared(FTIR)spectroscopic analysis revealed that the hydrolysates extracted by papain exist in triple-helical *** Ultra-Violet(UV)absorption spectra indicated that the aromatic amino acids in the hydrolysates had strong absorptions in the wavelength range of 240 nm–300 *** results of this research demonstrate that the alcalase hydrolysates have better solubility in water and the solution is more stable under ambient ***,the hydrolysates extracted by papain have a gel property and are insoluble in weak acid at room temperature,which is more suitable for applications in feedstock of biomedical.

关键词： Swim bladder enzymatic hydrolysis ultrasonic-assisted extraction hydrolysates analysis

Copolymerization of Ethylene with 10-Undecen-1-ol Using Highly Active Vanadium(Ⅲ) Precatalysts Bearing Bis(imino)pyrrolyl Ligands

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Chinese Journal of Polymer Science 2014年第5期32卷 603-608页

作者： ling-pan Lu Jing-shan Mu 李悦生 State Key Laboratory of Polymer Physics and Chemistry Changchun Institute of Applied ChemistryChinese Academy of Sciences University of the Chinese Academy of Sciences Changchun Branch The school of Materials Science and Chemical Engineering Ningbo University

The copolymerizations of ethylene with 10-undecen-1-ol have been investigated using vanadium precatalysts, bis（imino）pyrrolyl vanadium（Ⅲ） complexes 1-3, 2,5-C4H2N（CH=NR）2VCl2（THF）2 [R = C6H5 （1）, 2,6-iPr2C6H3 （2）, C6F5 （3）], and the iminopyrrolyl and b-diketiminate ones for comparison. The polar monomer was pretreated by diethylaluminium chloride （present also as the cocatalyst） before the copolymerization. The monomer reactivity ratios were evaluated using the Fineman-Ross method. The ligand structure considerably influenced the catalytic activity and tolerance towards the polar monomer, the polar monomer incorporation and the molecular weights of the resultant copolymers. The bis（imino）pyrrolyl vanadium complexes exhibited promising catalytic performance for the copolymerization, and a high catalytic activity up to 3.84 kg/mmolv·h with a high comonomer incorporation of 14.0 mol% was achieved by complex 3 under mild conditions.

关键词： Ziegler-Natta polymerization Copolymerization Functional polyolefin.

Effects of surface nanostructure on boundary lubrication using molecular dynamics

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Nanotechnology and Precision Engineering 2021年第3期4卷 54-62页

作者： ling pan Hui Yu Shiping Lu Guobin Lin School of Mechanical Engineering and Automation Fuzhou UniversityFuzhou 350116China

Molecular dynamics simulations are used to study the boundary lubrication behaviors of squalane lubricant between two iron wall structures during shearing at different pressures and *** lubrication models with a smooth iron wall and a nanostructured iron wall,respectively,are constructed,and the density distribution of the lubricating film and the velocity distribution in the shearing process are *** mechanical response of the solid wall is output,and the friction coefficient is calculated.A tribological test is performed with a UMT-2 tribometer under sliding conditions to evaluate the reliability of the simulation *** results show that the surface nanostructure has a significant effect on the film thickness and delamination of the lubricating film but little effect on the velocity distribution of the lubricating *** nano strip groove helps to reduce the friction coefficient of the boundary lubrication system.

关键词： Boundary lubrication Rough surface Molecular dynamics Lubricating film Friction coefficient

Hydration of Activated Anhydrate Phosphogypsum

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Journal of Wuhan University of Technology(Materials Science) 2013年第3期28卷 535-537页

作者：杨敏 QIAN Jueshi pan ling YANG Chengjun College of Chemistry and Chemical Engineering Guizhou University College of Materials Science and Engineering Chongqing University

Phosphogypsum（PG） calcined at 500 ℃ was activated by K2SO4 and salt lime with loose structure as seed crystal. To determine the effect of activation, hydration of the anhydrate PG activated was investigated by examination of the setting time, the proportion of hydrated anhydrate PG, the microstructure of the hardenite and the resistance to water. Results show that activated anhydrate PG hydrates much more rapidly than that in the absence of activators. The activated anhydrate PG has proper setting time and hydrated proportion. The resistance to water was greatly improved. SEM photos show that the set activated PG has hydrated products of rod-like and closely connected crystals. The different addition of activator leads to different compact structure.

关键词： hydration anhydrate phosphogypsum activation K2S04 seed crystal

Medical Sign Recognition of Lung Nodules Based on Image Retrieval with Semantic Features and Supervised Hashing

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Journal of Computer Science & Technology 2017年第3期32卷 457-469页

作者： Juan-Juan Zhao ling pan Peng-Fei Zhao Kiao-Xian Tang College of Computer Science and Technology Taiyuan University of Technology Taiyuan 030024 China Shanxi Provincial People's Hospital Taiyuan 030012 China

Sign recognition is important for identifying benign and malignant nodules. This paper proposes a new sign recognition method based on image retrieval for lung nodules. First, we construct a deep learning framework to extract semantic features that can effectively represent sign information. Second, we translate the high-dimensional image features into compact binary codes with principal component analysis （PCA） and supervised hashing. Third, we retrieve similar lung nodule images with the presented adaptive-weighted similarity calculation method. Finally, we recognize nodule signs from the retrieval results, which can also provide decision support for diagnosis of lung lesions. The proposed method is validated on the publicly available databases： lung image database consortium and image database resource initiative （LIDC-IDRI） and lung computed tomography （CT） imaging signs （LISS）. The experimental results demonstrate our retrieval method substantially improves retrieval performance compared with those using traditional Hamming distance, and the retrieval precision can achieve 87.29%when the length of hash code is 48 bits. The entire recognition rate on the basis of the retrieval results can achieve 93.52%. Moreover, our method is also effective for real-life diagnosis data.

关键词： lung nodule medical sign recognition image retrieval supervised hashing adaptive weight

Dual excitable upconversion nanoparticle@polydopamine nanocomposite with intense red emission and efficient photothermal generation

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Journal of Rare Earths 2023年第12期41卷 1860-1868,I0002页

作者： Huazhen Liao Song Ye Xinling Xu Peixuan Lin ling pan Deping Wang School of Materials Science and Engineering Tongji UniversityShanghai201804China

Integration of strong upconversion emission with deep tissue penetration and stable photothermal generation is of great significance for imaging-guided photothermal therapy under infrared ***,the NaYF_(4):Yb^(3+),Ho^(3+),Ce^(3+)@NaGdF_(4):Yb^(3+),Nd^(3+)@NaGdF_(4)core-shell-shell upconversion nanoparticles(UCNPs) with increasing Ce^(3+)doping concentration were firstly synthesized,in which the size manipulation,enhanced red to green emission intensity ratio(IR/IG),980 and 808 nm dual-modal excitations,as well as improved total upco nversion emission intensity can be *** the coating of polydopamine(PDA) through dopamine spontaneous polymerization on the UCNPs surface under alkaline condition,the obtained UCNP@PDA nanocomposites show efficient photothermal effect under 808 nm excitation,while the thickness variation of PDA can be indicated by the upconversion spectra under 980 nm ***,the photothermal effect of the UCNP@PDA nanocomposites with high IR/IGratio is mo re stable with PDA thickness variation,which bene fits from the structure design that allows PDA to simultaneously absorb the visible emission from inside UCNPs and the external 808 nm infrared *** in vitro cytotoxicity assay and photothermal therapy demonstrate that the UCNP@PDA nanocomposite has good biocompatibility and ability to kill tumor cells by photothermal effect under 808 nm *** research may provide a nanoplatform for integrating deep bioimaging with highly stable photothermal therapy without the sacrifice of radiative transitions of rare earth ions.

关键词： Upconversion nanoparticle Photothermal effect Polydopamine Enhanced red emission Ce^(3+)doping Rare earths

Post-salpingectomy interstitial heterotopic pregnancy after in vitro fertilization and embryo transfer:A case report

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World Journal of Clinical Cases 2021年第23期9卷 6950-6955页

作者： Qiao Wang Xiao-ling pan Xiao-Rong Qi Department of Gynecology and Obstetrics West China Second HospitalSichuan UniversityChengdu 610041Sichuan ProvinceChina

BACKGROUND Heterotopic pregnancy(HP)refers to the coexistence of ectopic pregnancy and intrauterine *** is proposed as a pretreatment before in vitro fertilization and embryo transfer(IVF-ET)to reduce the risk of *** after IVF-ET occurs in women who had already underwent bilateral salpingectomy,even though it is extremely *** SUMMARY A case of a 29-year-old woman with recurrent interstitial HP after IVF-ET following salpingectomy is *** main symptom was a sudden and worsening pelvic *** examinations revealed signs of peritoneal bleeding and irritation with stable vital *** ultrasound showed a live intrauterine pregnancy and another live embryo with cardiac activity in the left cornu extending beyond the lateral edge of the *** hemoglobin concentration was 8.0 g/dL,and serum human chorionic gonadotropin value was 171116.9 mIU/*** the diagnosis of ruptured HP with internal bleeding,an emergency laparoscopic resection of left cornu was *** interstitial pregnancy was removed with caution to protect the intrauterine *** the surgical treatment,the intrauterine pregnancy continued with no complications.A healthy baby was delivered by caesarean section at 39 *** of another three cases are further *** Post-salpingectomy HP is a rare but challenging *** treatment is preferred in the case with a viable intrauterine pregnancy.

关键词： Heterotopic pregnancy In vitro fertilization and embryo transfer Salpingectomy Surgery Case report