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Dynamic Multi-Attribute Decision-Making Method with Double Reference Points and Its Application

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Computers, Materials & Continua 2021年第7期68卷 1303-1320页

作者： Haoran Huang Qinyong Lin weitong chen Kai Fang Huazhou chen Ken Cai College of Information Science and Technology Zhongkai University of Agriculture and EngineeringGuangzhou510225China College of Automation Zhongkai University of Agriculture and EngineeringGuangzhou510225China School of Information Technology and Electrical Engineering The University of QueenslandBrisbaneQLD 4072Australia College of Economy and Trade Zhongkai University of Agriculture and EngineeringGuangzhou510225China College of Science Guilin University of TechnologyGuilin541004China

To better reflect the psychological behavior characteristics of loss aversion,this paper builds a double reference point decision making method for dynamic multi-attribute decision-making(DMADM)problem,taking bottom-line and target as reference ***,the gain/loss function is given,and the state is divided according to the relationship between the gain/loss value and the reference ***,the attitude function is constructed based on the results of state division to establish the utility ***,the comprehensive utility value is calculated as the basis for alternatives classification and ***,the new method is used to evaluate the development level of smart *** results show that the new method can judge the degree to which the alternatives meet the requirements of the *** the new method can effectively screen out the unsatisfactory alternatives,the ranking results of other alternatives are consistent with those of traditional methods.

关键词： Double reference point dynamic multi-attribute decision making smart city evaluation loss aversion

Strata Architectural Variability and Facies Distribution in a Structural Transfer Zone: A Case Study of Fushan Sag, Northern South China Sea

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Acta Geologica Sinica(English Edition) 2021年第6期95卷 1998-2015页

作者： FU Chao YU Xinghe chen weitong REN Guiyuan LIU Desheng School of Energy China University of Geosciences(Beijing)Beijing 100083China Geosciences Rennes Universitede Rennes 1Rennes 35042France CNOOC Research Institute Beijing 100028China South Oil Exploration and Development Company PetroChinaGuangzhou 510640China

Structural transfer zones in a half-graben rift basin play a significant role in controlling sandy sediments and providing a target for hydrocarbon exploration. Previous studies have classified the transfer zone in lacustrine environments into two different patterns: synthetic approaching transfer zones and synthetic overlapping transfer zones. However, the evolution of the depositional pattern and the controlling factors of the above transfer zones are still unclear. In the Fushan Sag, the northern South China Sea, an overlapping transfer zone developed in the early Eocene Epoch, while a synthetic approaching transfer zone developed in the late Eocene, due to tectonic uplift. This evolutionary process provided an opportunity to study the stacking pattern of strata architectural variability and facies distribution in the structural transfer zone of the Eocene lacustrine basin. In this study, following the indications of the oriented sedimentary structures in core samples and heavy mineral assemblages of 18 wells, the evolution of the paleo-hydrodynamic distribution during the early and late Eocene has been reconstructed. The sequence-stratigraphy was then divided and the sand body parameters calculated, according to the seismic data and well log interpretations. During the early Eocene, the lake level was at a low stand, the faults broken displacement in the East block being over 50 m. The prograding delta and turbidites are oriented perpendicular to the structural transfer zone. According to the quantitative analysis of the flow rate and the depositional parameters, we speculate that gravity transportation of the sediment and the sediment-supply are the dominating factors during this period. Up to the late Eocene, the rising lake level and the decreased fault displacement leads the flow to divert to a NE-direction, resulting in it being parallel to the axis of the transfer zone. Thus, we speculate that the accommodation space is predominant in this period. In compa

关键词： strata architectural variability facies distribution synthetic approaching transfer zone overlapping transfer zone evolutionary pattern Beibuwan Basin

MII:A Novel Text Classification Model Combining Deep Active Learning with BERT

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Computers, Materials & Continua 2020年第6期63卷 1499-1514页

作者： Anman Zhang Bohan Li Wenhuan Wang Shuo Wan weitong chen College of Computer Science and Technology Nanjing University of Aeronautics and AstronauticsNanjing211106China Key Laboratory of Safety-Critical Software Ministry of Industry and Information TechnologyNanjing211106China Collaborative Innovation Center of Novel Software Technology and Industrialization Nanjing210046China School of Information Technology and Electrical Engineering University of QueenslandQueenslandAustralia

Active learning has been widely utilized to reduce the labeling cost of supervised *** selecting specific instances to train the model,the performance of the model was improved within limited ***,rare work paid attention to the effectiveness of active learning on *** this paper,we proposed a deep active learning model with bidirectional encoder representations from transformers(BERT)for text *** takes advantage of the self-attention mechanism to integrate contextual information,which is beneficial to accelerate the convergence of *** for the process of active learning,we design an instance selection strategy based on posterior probabilities Margin,Intra-correlation and Inter-correlation(MII).Selected instances are characterized by small margin,low intra-cohesion and high *** conduct extensive experiments and analytics with our *** effect of learner is compared while the effect of sampling strategy and text classification is assessed from three real *** results show that our method outperforms the baselines in terms of accuracy.

关键词： Active learning instance selection deep neural network text classification

Effect of carbon material and surfactant on ink property and resulting surface cracks of fuel-cell microporous layers

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Chinese Journal of Chemical Engineering 2024年第5期69卷 1-12页

作者： Zhekun chen weitong Pan Longfei Tang Xueli chen Fuchen Wang Engineering Research Center of Resource Utilization of Carbon-containing Waste with Carbon Neutrality Ministry of EducationEast China University of Science and TechnologyShanghai 200237China Key Laboratory of Pressure Systems and Safety Ministry of EducationEast China University of Science and TechnologyShanghai 200237China

Ensuring the consistency of electrode structure in proton-exchange-membrane fuel cells is highly desired yet challenging because of wide-existing and unguided cracks in the microporous layer(MPL). The first thing is to evaluate the homogeneity of MPL with cracks quantitatively. This paper proposes the homogeneity index of a full-scale MPL with an area of 50 cm~2, which is yet to be reported in the literature to our knowledge. Besides, the effects of the carbon material and surfactant on the ink and resulting MPL structure have been studied. The ink with a high network development degree produces an MPL with low crack density, but the ink with high PDI produces an MPL with low crack homogeneity. The polarity of the surfactant and the non-polarity of polytetrafluoroethylene(PTFE) are not mutually soluble,resulting in the heterogeneous PTFE distribution. The findings of this study provide guidelines for MPL fabrication.

关键词： Proton-exchange-membrane fuel cell Microporous layer Crack density Crack homogeneity Polytetrafluoroethylene distribution Surfactant

Effect of crystal morphology of ultrahigh-nickel cathode materials on high temperature electrochemical stability of lithium ion batteries

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Journal of Energy Chemistry 2024年第1期88卷 327-335,I0008页

作者： Bi Luo Hui Li Haoyu Qi Yun Liu Chuanbo Zheng weitong Du Jiafeng Zhang Lai chen School of Metallurgy Engineering Jiangsu University of Science and TechnologyZhangjiagang 215600JiangsuChina National Engineering Laboratory for High-Efficiency Recovery of Refractory Nonferrous Metals School of Metallurgy and EnvironmentCentral South UniversityChangsha 410083HunanChina School of Materials Science and Engineering Beijing Key Laboratory of Environmental Science and EngineeringBeijing Institute of TechnologyBeijing 100081China

Higher nickel content endows Ni-rich cathode materials LiNi_(x)Co_yMn_(1-x-y)O_(2)(x>0.6)with higher specific capacity and high energy density,which is regarded as the most promising cathode materials for Li-ion ***,the deterioration of structural stability hinders its practical application,especially under harsh working conditions such as high-temperature *** these circumstances,it becomes particularly critical to clarify the impact of the crystal morphology on the structure and high-temperature performance as for the ultrahigh-nickel ***,we conducted a comprehensive comparison in terms of microstructure,high-temperature long-cycle phase evolution,and high-temperature electrochemical stability,revealing the differences and the working mechanisms among polycrystalline(PC),single-crystalline(SC)and Al doped SC ultrahigh-nickel *** results show that the PC sample suffers a severe irreversible phase transition along with the appearance of microcracks,resulting a serious decay of both average voltage and the energy *** the Al doped SC sample exhibits superior cycling stability with intact layered ***-situ XRD and intraparticle structural evolution characterization reveal that Al doping can significantly alleviate the irreversible phase transition,thus inhibiting microcracks generation and enabling enhanced ***,it exhibits excellent cycling performance in pouch-type full-cell with a high capacity retention of 91.8%after 500 cycles at 55℃.This work promotes the fundamental understanding on the correlation between the crystalline morphology and high-temperature electrochemical stability and provides a guide for optimization the Ni-rich cathode materials.

关键词： Single-crystalline Ultrahigh-nickel cathode High-temperature performance Phase evolution

Enhancing thermodynamic stability of single-crystal Ni-rich cathode material via a synergistic dual-substitution strategy

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Journal of Energy Chemistry 2024年第1期88卷 428-436,I0010页

作者： Jixue Shen Hui Li Haoyu Qi Zhan Lin Zeheng Li Chuanbo Zheng weitong Du Hao chen Shanqing Zhang School of Metallurgy Engineering Jiangsu University of Science and TechnologyZhangjiagang 215600JiangsuChina School of Metallurgy and Environment Central South UniversityChangsha 410083HunanChina Guangdong Laboratory of Chemistry and Fine Chemical Industry Jieyang Center Jieyang 515200GuangdongChina Institute of Sustainable Transformation School of Chemical Engineering and Light IndustryGuangdong University of TechnologyGuangzhou 510006GuangdongChina Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology College of Chemical and Biological EngineeringZhejiang UniversityHangzhou 310027ZhejiangChina Centre for Catalysis and Clean Energy School of Environment and ScienceGold Coast CampusGriffith UniversityGold Coast 4222QueenslandAustralia

Nickel(Ni)-rich cathode materials have become promising candidates for the next-generation electrical vehicles due to their high specific ***,the poor thermodynamic stability(including cyclic performance and safety performance or thermal stability)will restrain their wide commercial ***,a single-crystal Ni-rich Li Ni_(0.83)Co_(0.12)Mn_(0.05)O_(2) cathode material is synthesized and modified by a dual-substitution strategy in which the high-valence doping element improves the structural stability by forming strong metal–oxygen binding forces,while the low-valence doping element eliminates high Li^(+)/Ni^(2+)*** a result,this synergistic dual substitution can effectively suppress H2-H3 phase transition and generation of microcracks,thereby ultimately improving the thermodynamic stability of Ni-rich cathode ***,the dual-doped Ni-rich cathode delivers an extremely high capacity retention of 81%after 250 cycles(***/Li+)in coin-type half cells and 87%after 1000 cycles(***/Li^(+))in pouch-type full cells at a high temperature of 55℃.More impressively,the dual-doped sample exhibits excellent thermal stability,which demonstrates a higher thermal runaway temperature and a lower calorific *** synergetic effects of this dual-substitution strategy pave a new pathway for addressing the critical challenges of Ni-rich cathode at high temperatures,which will significantly advance the high-energy-density and high-safety cathodes to the subsequent commercialization.

关键词： Ni-rich cathode Single crystalline Dual-substitution strategy High-temperature cathode Li-ion batteries

Ponatinib对人慢性髓系白血病细胞株K562自噬的影响

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杭州师范大学学报（自然科学版） 2024年第4期23卷 395-401页

作者：张蕾吴一凡郭圣洁孙青颖赵志明陈薇潼徐小冬赵冬久朴正浩杭州师范大学基础医学院浙江杭州311121

酪氨酸激酶抑制剂(tyrosine kinase inhibitors,TKIs)是治疗白血病的靶向药物,其中第3代的Ponatinib疗效最强、见效最快,但与其他TKIs在作用机制上存在的差异尚不明确.为此,采用第1代的Imatinib和第3代的Ponatinib处理慢性髓系白血病细... 详细信息

酪氨酸激酶抑制剂(tyrosine kinase inhibitors,TKIs)是治疗白血病的靶向药物,其中第3代的Ponatinib疗效最强、见效最快,但与其他TKIs在作用机制上存在的差异尚不明确.为此,采用第1代的Imatinib和第3代的Ponatinib处理慢性髓系白血病细胞株K562细胞,观察活细胞数量、线粒体活性、活性氧(reactive oxygen species,ROS)和自噬相关分子的变化.经研究发现,Ponatinib比Imatinib更显著地抑制K562细胞的增殖和生存率,并降低了线粒体活性,但ROS没有明显差异;免疫印迹实验发现Ponatinib比Imatinib更明显促进自噬标志性分子LC3B蛋白的表达,并显著降低自噬受体蛋白p62的表达,但未检测到AMPKα、ULK1和Beclin1蛋白的磷酸化.此外,Bafilomycin A1能阻止Ponatinib对p62蛋白的抑制作用,而Brefeldin A和N-乙酰-L-半胱氨酸未能起到阻止作用.这些结果表明,Ponatinib比Imatinib更显著地引起K562细胞的线粒体损伤,进而诱导更明显的自噬,这一发现可能为解释Ponatinib疗效更强的作用机制提供重要线索.

关键词：慢性髓系白血病 Ponatinib 酪氨酸激酶抑制剂线粒体自噬

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基于粗糙集理论的网络入侵检测方法

计算机工程 2006年第16期32卷 133-135页

作者：陈伟统钱沄涛浙江大学计算机学院

提出了基于粗糙集理论的网络入侵检测方法,应用混合遗传算法求解粗糙集的约简,减少了计算时间。实验结果表明,该方法对DoS和Probe攻击具有很高的检测率和较低的误检率,并且对U2R和R2L攻击也有较好的检测率。

关键词： Rough Set理论入侵检测遗传算法启发式算法

THE ANOMALOUS CHROMATOGRAPHIC RETENTION BEHAVIOR OF N-METHYL CARBAZOLE IN GAS CHROMATOGRAPHY

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Chinese Science Bulletin 1983年第11期28卷 1491-1495页

作者：陈为通陈秀蓉 Institute of Chemistry Academia Sinica Beijing Institute of Chemistry Academia Sinica Beijing? INTRODUCTION The relationships between the chromatographic retention values of a compound its molecular structure and its intermolecular interaction with the stationary phase have been more and more extensively studied The study of the retention behavior of a compound not only reveals the above carrelation but also suggests a new way for investigating the physicoehemical basis of the chromatographic process. Carbazole and its derivatives are well-known excellent photoelectrical materials. Thus their physico-chemical properties have attracted wide attention.

Ⅰ. INTRODUCTION The relationships between the chromatographic retention values of a compound, its molecular structure, and its intermolecular interaction with the stationary phase have been more and more extensively studied, The study of the retention behavior of a compound not only reveals the above carrelation, but also suggests a new way for investigating the physicoehemical basis of the chromatographic process. Carbazole and its derivatives are well-known excellent photoelectrical materials. Thus their physico-chemical properties have attracted wide attention.

关键词： retention stationary intermolecular maintained deviation straight solute lowest homologous attributed