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A Novel Green Supplier Selection Method Based on the Interval Type-2 Fuzzy Prioritized Choquet Bonferroni Means

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IEEE/CAA Journal of Automatica Sinica 2021年第9期8卷 1549-1566页

作者： Peide Liu hui gao School of Management Science and Engineering Shandong University of Finance and EconomicsJinan 250014China School of Business Heze UniversityHeze 274015China

In view of the environment competencies,selecting the optimal green supplier is one of the crucial issues for enterprises,and multi-criteria decision-making(MCDM)methodologies can more easily solve this green supplier selection(GSS)*** addition,prioritized aggregation(PA)operator can focus on the prioritization relationship over the criteria,Choquet integral(CI)operator can fully take account of the importance of criteria and the interactions among them,and Bonferroni mean(BM)operator can capture the interrelationships of ***,most existing researches cannot simultaneously consider the interactions,interrelationships and prioritizations over the criteria,which are involved in the GSS ***,the interval type-2 fuzzy set(IT2FS)is a more effective tool to represent the ***,based on the advantages of PA,CI,BM and IT2FS,in this paper,the interval type-2 fuzzy prioritized Choquet normalized weighted BM operators with fuzzy measure and generalized prioritized measure are proposed,and some properties are ***,a novel MCDM approach for GSS based upon the presented operators is developed,and detailed decision steps are ***,the applicability and practicability of the proposed methodology are demonstrated by its application in the shared-bike GSS and by comparisons with other *** advantages of the proposed method are that it can consider interactions,interrelationships and prioritizations over the criteria simultaneously.

关键词： Bonferroni mean operator Choquet integral operator Green supplier selection(GSS) interval type-2 fuzzy set(IT2FS) prioritized aggregation operator

Effect of particle size on the microstructure and thermal conductivity of Al/diamond composites prepared by spark plasma sintering

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Rare Metals 2009年第6期28卷 646-650页

作者： CHU Ke JIA Chengchang liang Xuebing CHEN hui gao Wenji School of Material Science and Engineering University of Science and Technology Beijing Beijing 100083 China

Spark plasma sintering （SPS） was used to fabricate Al/diamond composites. The influence of diamond particle size on the microstructure and thermal conductivity （TC） of composites was investigated by combining experimental results with model prediction. The results show that both composites with 40 pan particles and 70 μm particles exhibit high density and good TC, and the composite with 70 μm particles indicates an excellent TC of 325 W.m^-1.K^-1. Their TCs lay between the theoretical estimated bounds. In contrast, the composite with 100 lain particles demonstrates low density as well as poor TC due to its high porosity and weak interfacial bonding. Its TC is even considerably less than the lower bound of the predicted value. Using larger diamond particles can further enhance thermal conductive performance only based on the premise that highly dense composites of strong interfacial bonding can be obtained.

关键词： metal matrix composites thermal properties sintering particle size

On Discontinuous and Continuous Approximations to Second-Kind Volterra Integral Equations

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Numerical Mathematics(Theory,Methods and Applications) 2022年第1期15卷 91-124页

作者： hui liang School of Science Harbin Institute of TechnologyShenzhen518055China

Collocation and Galerkin methods in the discontinuous and globally continuous piecewise polynomial spaces,in short,denoted as DC,CC,DG and CG methods respectively,are employed to solve second-kind Volterra integral equations(VIEs).It is proved that the quadrature DG and CG(QDG and QCG)methods obtained from the DG and CG methods by approximating the inner products by suitable numerical quadrature formulas,are equivalent to the DC and CC methods,*** addition,the fully discretised DG and CG(FDG and FCG)methods are equivalent to the corresponding fully discretised DC and CC(FDC and FCC)*** convergence theories are established for DG and CG methods,and their semi-discretised(QDG and QCG)and fully discretized(FDG and FCG)*** particular,it is proved that the CG method for second-kind VIEs possesses a similar convergence to the DG method for first-kind *** examples illustrate the theoretical results.

关键词： Volterra integral equations collocation methods Galerkin methods discontinuous Galerkin methods convergence analysis

Damage analysis of POZD coated square reinforced concrete slab under contact blast

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Defence Technology（防务技术） 2022年第9期18卷 1715-1726页

作者： Wei Wang Qing Huo Jian-chao Yang Jian-hui Wang Xing Wang Wei-liang gao Key Laboratory of Impact and Safety Engineering (Ningbo University)Ministry of EducationNingbo315211ZhejiangChina Institute of Defence Engineering AMS PLALuoyang 471023China Institute of Advanced Energy Storage Technology and Equipment Ningbo UniversityNingbo315211ZhejiangChina

High efficiency, environmental protection and sustainability have become the main theme of the development of the protection engineering, requiring that the components not only meet the basic functions, but also have chemical properties such as acid and alkali corrosion resistance and aging resistance. Polyisocyanate-oxazodone(POZD) polymer has the above characteristics, it also has the advantages of strong toughness, high strength and high elongation. The concrete slab sprayed with POZD material has excellent anti-blast performance. In order to explore the damage characteristics of POZD sprayed concrete slabs under the action of contact explosion thoroughly, the contact explosion test of POZD concrete slabs with different charges were carried out. On the basis of experimental verification,numerical simulation were used to study the influence of the thickness of the POZD on the blast resistance of the concrete slab. According to the test and numerical simulation results that as the thickness of the coating increases, the anti-blast performance of the concrete slab gradually increases,and the TNT equivalent required for critical failure is larger. Based on the above analysis, empirical expressions on normalized crater diameter, the normalized spall diameter and normalized spall diameter are obtained.

关键词： Contact exposion Square reinforced concrete slab POZD coating Numerical simulation

Influence of the Northeast Cold Vortex on Flooding in Northeast China in Summer 2013

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Journal of Meteorological Research 2018年第2期32卷 172-180页

作者： Jing gao hui gao Inner Mongolia Climate Center Hohhot 010051 National Climate Center China Meteorological Administration Beijing 100081

Severe flooding occurred in Northeast China（NEC） in summer 2013. Compared with the rainfall climatology of the region, the rainy season began earlier in 2013 and two main rainy periods occurred from late June to early July and from mid July to early August, respectively. During the summer season of 2013, the western Pacific subtropical high（WPSH） was located farther westward, which strengthened the southerly winds on its west side in the lower troposphere. Under this circulation pattern, more water vapor was transported to North China and NEC. Another moisture transport pathway to NEC was traced to the cross-equatorial flow over the Bay of Bengal. In mid–high latitudes in summer 2013, the Northeast Cold Vortex（NECV） was much stronger and remained stable over NEC. Thus, the cold air flow from its northwest side frequently met with the warm and wet air from the south to form stronger moisture convergence at lower levels in the troposphere, resulting in increased precipitation over the region. Correlation analysis indicated that the NECV played a more direct role than the WPSH. Synoptic analyses of the two heaviest flood cases on 2 and 16 July confirmed this conclusion. The four wettest summers in NEC before 2000 were also analyzed and the results were consistent with the conclusion that both the WPSH and the NECV led to the intense rainfall in NEC, but the NECV had a more direct role.

关键词： flood Northeast China Northeast Cold Vortex westem Pacific subtropical high

Synthesis and Characterization of Polyaniline/Partially Phosphorylated Poly(vinyl alcohol) Nanoparticles

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Chinese Journal of Polymer Science 2014年第1期32卷 35-42页

作者：蒋绪 Bing-chang Li Yong-hui Song Zhi-liang gao Bei-bei Nan Research Institute of Energy Chemical Industry Xianyang Vocational Technical College Department of Energy engineering Shaanxi Energy Institute Research Center of Metallurgical Engineering & Technology of Shaanxi Province Xi'an University of Architecture and Technology Research Institute of Shaanxi Yanchang Petroleum (group) Co. Ltd.

The polyaniline/partially phosphorylated poly（vinyl alcohol）（PANI/P-PVA） nanoparticles were prepared by the chemical oxidative dispersion polymerization of aniline monomer in 0.5 mol/L HC1 aqueous media with the partially phosphorylated poly（vinyl alcohol）（P-PVA） as the stabilizer and co-dopant. The PANI/P-PVA nanoparticles were characterized by transmission electron microscopy （TEM）, Fourier transform infrared spectroscopy （FTIR）, thermal gravimetric analysis （TGA）, X-ray diffraction （XRD）, electrical conductivity measurements and re-dispersion stability testing. All the results were compared with the properties of the conventional polyaniline in the emeraldine salt form （PANI ES）. It was found that the feeding ratio of P-PVA obviously affected the morphology, re-dispersion stability and electrical conductivity of the PANI/P-PVA nanoparticles. When the feeding ratio of P-PVA ranged from 40 wt% to 50 wt%, the PANI/P-PVA nanoparticles showed spherical shape with good uniformity, significant re-dispersion stability in aqueous media and good electrical conductivity.

关键词： Conducting polyaniline Phosphorylated poly(vinyl alcohol) Colloidal dispersion.

Malignant fibrous histiocytoma of the axilla with breast cancer:A case report

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World Journal of Clinical Cases 2022年第34期10卷 12678-12683页

作者： Ning gao Ai-Qing Yang hui-Rong Xu liang Li Department of Breast Surgery Zibo Central HospitalZibo 255000Shandong ProvinceChina Zibo Center for Disease Control and Prevention Zibo 255000Shandong ProvinceChina Department of Pathology Zibo Central HospitalZibo 255000Shandong ProvinceChina

BACKGROUND Multiple primary malignant neoplasms refer to multiple tumors with different *** may be synchronous or *** incidence is 0.73%–11.7%.Synchronous cases of breast cancer with sarcoma are *** SUMMARY Here,we report a 78-year-old female patient admitted to hospital after accidental discovery of a left axillary *** examination revealed a breast *** showed left breast cancer and left axillary *** patient underwent surgery,endocrine therapy and *** has been followed up for 1 year,and no local recurrence or distant metastasis was *** Attention should be paid to multiple primary malignant neoplasms,not limited to the current diagnosis and analysis,avoiding missed diagnosis and misdiagnosis.

关键词： Breast cancer Multiple primary malignant neoplasms Axillary malignant fibrous histiocytoma Case report

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深度学习在心力衰竭检测中的应用综述

计算机科学与探索 2025年第1期19卷 65-78页

作者：王永威魏德健曹慧姜良山东中医药大学智能与信息工程学院济南250355

随着生物医学技术的发展,利用生物信号进行心力衰竭的早期诊断已成为提高患者生存率和降低治疗成本的关键策略。在此背景下,深度学习技术的迅猛发展为心力衰竭检测开辟了新路径。系统地综述了深度学习在心力衰竭检测中的最新进展和应用... 详细信息

随着生物医学技术的发展,利用生物信号进行心力衰竭的早期诊断已成为提高患者生存率和降低治疗成本的关键策略。在此背景下,深度学习技术的迅猛发展为心力衰竭检测开辟了新路径。系统地综述了深度学习在心力衰竭检测中的最新进展和应用。概述了心力衰竭检测涉及的主要生物医学信号和公开数据集。详细分析了深度学习在心力衰竭诊断领域的应用及其发展,特别是对卷积神经网络和长短期记忆网络处理心电图、心率变异性、心音等关键生物医学信号的能力进行了深入分析,总结了这些技术的优势、局限性,并对各类模型性能进行了比较。探讨了通过融合多种人工智能技术所构建的混合模型在提升检测精度和模型泛化能力方面的潜力,以及如何利用模型的可解释性来增加检测过程的透明度,提升医生的信任度。最后总结了当前研究存在的不足,并对未来研究方向提出展望,强调了跨学科合作在推动心力衰竭检测技术进步中的重要性。

关键词：心力衰竭生物医学信号深度学习卷积神经网络循环神经网络混合模型

Real-time Feed-forward Force Compensation for Active Magnetic Bearings System Based on H∞ Controller

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Chinese Journal of Mechanical Engineering 2011年第1期24卷 58-66页

作者： gao hui XU Longxiang College of Mechanical and Electrical Engineering Nanjing University of Aeronautics and Astronautics Nanjing 210016 China

There are two kinds of unbalance vibrations—force vibration and displacement vibration due to the existence of unbalance excitation in active magnetic bearings（AMB） system. And two unbalance compensation methods—closed-loop feedback and open loop feed-forward are presented to reduce the force vibration. The transfer function order of the control system directly influencing the system stability will be increased when the closed-loop method is adopted, which makes the real-time compensation not easily achieved. While the open loop method would not increase the primary transfer function order, it provides conditions for real-time compensation. But the real-time compensation signals are not easy to be obtained in the open loop method. To implement real-time force compensation, a new method is proposed to reduce the force vibration caused by the rotor unbalance on the basis of AMB active control. The method realizes real-time and on-line force auto-compensation based on H∞ controller and one novel feed-forward compensation controller, which makes the rotor rotate around its inertia axis. The time-variable feed-forward compensatory signal is provided by a modified adaptive variable step-size least mean square（VSLMS） algorithm. And the relevant least mean square（LMS） algorithm parameters are used to solve the H∞ controller weighting functions. The simulation of the new method to compensate some frequency-variable and sinusoidal signals is completed by MATLAB programming, and real-time compensation is implemented in the actual AMB experimental system. The simulation and experiment results show that the compensation scheme can improve the robust stability and the anti-interference ability of the whole AMB system by using H∞ controller to achieve close-loop control, and then real-time force unbalance compensation is implemented. The proposed research provides a new control strategy containing real-time algorithm and H∞ controller for the force compensation of AMB system. And

关键词： active magnetic bearings H∞ robust controller sensitivity and complementary sensitivity VSLMS algorithm feed-forward compensation