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Chinese Journal of structural Chemistry 2017年第9期36卷 1486-1492页

作者：罗旭健王书龙杨燕罗志辉刘荣军梁伟江 guangxi Key Laboratory of Farm Products Processing (Cultivation Base) Colleges and Universities Key Laboratory for Efficient Use of Agricultural Resources in the Southeast of GuangxiCollege of Chemistry and Food ScienceYulin Normal University

A new platinum（Ⅱ） complex of [Pt（chda）（2,3-dmopip）]Cl·H2O（1, chda = cyclohexan-ediamine, 2,3-dmopipH = 2-（2,3-dimethoxyphenyl）-1H-imidazo[4,5-f][1,10]phenanthroline） has been synthesized by hydrothermal methods and characterized by elemental analysis, IR, single-crystal X-ray diffraction, UV-vis and fluorescent spectrum. In complex 1, the platinum adopts a four-coordinated square planar geometry. The DNA-binding interaction has been investigated. The complex can bind to DNA by an intercalative mode, presenting high DNA-binding affinity.

关键词： phenanthroline platinum complex DNA interaction

Evolution and Role of Optimizers in Training Deep Learning Models

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IEEE/CAA Journal of Automatica sinica 2024年第10期11卷 2039-2042页

作者： XiaoHao Wen MengChu Zhou guangxi Normal University Guilin 541004China school of Information and Electronic Engineering Zhejiang Gongshang UniversityHangzhou 310018China the Helen and John C. Hartmann Department of Electrical and Computer Engineering New Jersey Institute of TechnologyNewarkNJ 07102 USA IEEE

TO perform well,deep learning(DL)models have to be trained *** optimizer should be adopted?We answer this question by discussing how optimizers have evolved from traditional methods like gradient descent to more advanced techniques to address challenges posed by highdimensional and non-convex problem *** challenges include their hyperparameter sensitivity,balancing between convergence and generalization performance,and improving interpretability of optimization *** continue to seek robust,efficient,and universally applicable optimizers to advance the field of DL across various domains.

关键词： Which Deep continue

Design and experimental verification of a dual-band metamaterial filter

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Chinese Physics B 2016年第10期25卷 362-367页

作者：朱洪杨姚爱琴钟敏 North University of China Hezhou University

In this paper, we present the design, simulation, and experimental verification of a dual-band free-standing metamaterial filter operating in a frequency range of 1 THz–30 THz. The proposed structure consists of periodically arranged composite air holes, and exhibits two broad and flat transmission bands. To clarify the effects of the structural parameters on both resonant transmission bands, three sets of experiments are performed. The first resonant transmission band shows a shift towards higher frequency when the side width w;of the main air hole is increased. In contrast, the second resonant transmission band displays a shift towards lower frequency when the side width w;of the sub-holes is increased, while the first resonant transmission band is unchanged. The measured results indicate that these resonant bands can be modulated individually by simply optimizing the relevant structural parameters（w;or w;） for the required band. In addition, these resonant bands merge into a single resonant band with a bandwidth of 7.7 THz when w;and w;are optimized simultaneously. The structure proposed in this paper adopts different resonant mechanisms for transmission at different frequencies and thus offers a method to achieve a dual-band and low-loss filter.

关键词： photoelectric metamaterial filter

Analysis of Chemical Components of Cocculus laurifolius *** on Liquid Chromatography-Mass spectrometry

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Medicinal Plant 2025年第1期16卷 16-18页

作者： Lintong HAN Yuzhe LI Chengxin LAN Bolin BAO Yajie WEI Haicheng WEN Wei WEI Xiaoman ZHONG guangxi University of Chinese Medicine Nanning 530001China

[Objectives]To analyze the main chemical components in Cocculus laurifolius *** ultra-high performance liquid chromatography-quaternary rod/electrostatic field orbital hydrazine high resolution mass spectrometry.[Methods]Using Welch AQ-C 18 chromatographic column(150 mm×2.1 mm,1.8μm),gradient elution was performed with 0.1%formic acid aqueous solution(A)-methanol(B)as the mobile phase,and electrospray EsI ionization source and simultaneous mass spectrometry scanning mode of positive and negative ions were used.[Results]26 kinds of chemical component were identified or inferred,including 3 organic acids,5 flavonoids,4 alkaloids,1 coumarin and 13 others.[Conclusions]The UPLC-Q-Exactive HRMs technique is simple,which lays a foundation for the drug-efficacy material basis and medicinal quality evaluation of *** DC.

关键词： Cocculus laurifolius DC. UPLC-Q-Exactive HRMs Chemical component Alkaloids Flavonoids

Nonlinear Identification and Control of Laser Welding Based on RBF Neural Networks

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Computer systems science & Engineering 2022年第4期41卷 51-65页

作者： Hongfei Wei Hui Zhao Xinlong shi shuang Liang Henan Polytechnic Institute Nanyang473000China Zhengzhou Railway Vocational&Technical College Zhengzhou450000China University of Florence Firenze50041Italy

A laser beam is a heat source with a high energy density;this technol-ogy has been rapidly developed and applied in theﬁeld of welding owing to its potential advantages,and supplements traditional welding *** in-depth analysis of its operating process could establish a good foundation for its application in *** is widely understood that the welding process is a highly nonlinear and multi-variable coupling process;it comprises a signiﬁcant number of complex processes with random uncertain *** of their nonlinear mapping and self-learning characteristics,artiﬁcial neural networks(ANNs)have certain advantages in comparison to traditional methods in theﬁeld of *** welding is a nonlinear dynamic process;these processes still pose a major challenge in theﬁeld of ***,establishing a stable model is a pre-requisite for achieving accurate *** this study,the identiﬁcation and con-trol of radial basis function neural networks in laser welding processes and self-tuning PID control methods are proposed to improve weld *** a MATLAB simulation,it is shown that the proposed method can obtain a good description of the level of nonlinear dynamic control,and that the algorithm iden-tiﬁcation accuracy is high,practical,and *** this method,the weld width quickly reaches the expected value and the system remains stable,with good ***,it ensures the stability and dynamic performance of the welding process and improves weld quality.

关键词： Laser welding radial basis function neural networks self-tuning nonlinear identification

The Impact of Artificial Intelligence(AI) on the Low-Carbon Economy:A Prospective study on the Long-Term Rental Housing Market in guangxi, China

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Chinese Journal of Urban and Environmental studies 2022年第4期10卷 56-69页

作者： LI Dandan Nik Hadiyan Nik AZMAN school of Management Universiti Sains Malaysia Business school of Guilin University of Technology school of Management Universiti Sains Malaysia

In recent years, the tourism economy of guangxi Zhuang Autonomous Region(hereinafter referred to as “guangxi”), China, has been caught in the contradiction between infrastructure construction and natural environmental protection. By combing guangxi's tourism economy with its development path of smart long-term rental housing, this paper finds that the longterm rental market in guangxi based on artificial intelligence(AI) technology can solve the development contradiction through accurate construction planning to improve *** long-term rental housing market in guangxi has entered a low-carbon economy period since pilot programs were launched for the policy of managing public rental housing with AI and information technologies. From the perspective of AI, facts have proved that AI has the ability to re-adjust the competition order of an industry, which not only realizes the low-carbon development of the rental market, but also promotes the industrial upgrading of the tourist industry.

关键词： Artificial intelligence (AI) low carbon long-term rental housing guangxi

Oil spill Risk Assessment of Offshore Pipeline in the Bohai sea Under the Perspective of Ecological Protection

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Journal of Ocean University of China 2023年第3期22卷 649-657页

作者： ZHANG Kuncheng WANG Xing LIU Ying TIAN shizheng WU Lunyu WAN Xiaole school of Marxism/Institute of Marine Development Ocean University of ChinaQingdao 266100China guangxi Key Laboratory of Marine Environmental science Guangxi Academy of SciencesNanning 530007China North China sea Ecological Center of the Ministry of Natural Resources Qingdao 266000China Key Laboratory of Ecological Prewarning Protection and Restoration of Bohai SeaMinistry of Natural ResourcesQingdao 266000China College of Oceanic and Atmospheric sciences/Institute of Marine Development Ocean University of ChinaQingdao 266100China National Marine Environmental Forecasting Center Beijing 530007China Management College Ocean University of ChinaQingdao 266100China

In recent decades,the exploration and development of marine oil and gas resources have increased significantly to meet the increasing energy demand of *** Bohai sea is a semi-closed continental sea that has a weak water exchange capacity and high ecological ***,at present,more than 200 oil platforms have been built in the Bohai sea,with more than 270 offshore oil pipelines having a length exceeding 1600 *** oil spill pollution of offshore platforms has a great impact on the marine environment and ***,a comprehensive assessment of its risks is of great practical *** paper systematically constructs a comprehensive oil spill risk assessment model that combines the oil spill risk probability model and the ocean hydrodynamic *** paper uses the Bohai sea offshore pipeline as an example to assess its oil spill *** high-risk-value areas of the Bohai sea offshore pipeline are mainly distributed at the bottom of Liaodong Bay,the bottom of Bohai Bay,near the Caofeidian area,and the northern part of the Yellow River Estuary.

关键词： oil spill risk assessment Bohai sea spill frequency offshore pipeline hydrodynamic

Improving the performance of paper-based separator for lithium-ion batteries application by cellulose fiber acetylation and metal-organic framework coating

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Frontiers of Chemical science and Engineering 2024年第12期18卷 33-42页

作者： Wei Wang Xiangli Long Liping Pang Dawei shen Qing Wang guangxi Key Laboratory of Natural Polymer Chemistry and Physics College of Chemistry and Materials ScienceNanning Normal UniversityNanning 530001China Huzhou Yongxing Lithium Battery Technology Co. Ltd.Huzhou 313000China College of Food science and Engineering Xinyang Agriculture and Forestry UniversityXinyang 464000China

Paper-based separator for lithium-ion battery application has attracted great attention due to its good electrolyte affinity and thermal *** avoid the short circuit by the micron-sized pores of paper and improve the electrochemical properties of paper-based separator,cellulose fibers were acetylated followed by wet papermaking and metal-organic framework *** to the strong intermolecular interaction between acetylated cellulose fibers and N,N-dimethylformamide,the resulting separator exhibited compact *** zeolitic imidazolate framework-8 coating endowed the separator with enhanced electrolyte affinity(electrolyte contact angle of 0°),ionic conductivity(1.26 ms·cm^(–1)),interfacial compatibility(284Ω),lithium ion transfer number(0.61)and electrochemical stability window(4.96 V).The assembled LiFePO_(4)/Li battery displayed an initial discharge capacity of 146.10 mAh·g^(–1) at 0.5 C with capacity retention of 99.71%after 100 cycles and good rate *** proposed strategy would provide a novel perspective for the design of high-performance paper-based separators for battery applications.

关键词： paper-based separators lithium-ion batteries acetylation metal-organic framework coating

High-temperature oxidation resistance of ceramic coatings on titanium alloy by micro-arc oxidation in aluminate solution

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Progress in Natural science:Materials International 2022年第4期32卷 401-406页

作者： Guodong Hao Daiyue Zhang Liyan Lou Longcheng Yin Mudanjiang Normal University Harbin Institute of Technology

Ceramic coatings with aluminum titanuate（Al2TiO5） were prepared on Ti–6Al–4V alloy using pulsed bi-polar Micro-arc Oxidation（MAO）. The micromorphology and phase composition of the micro-arc-oxidition ceramic coatings on the titanium alloy were characterized by X-ray powder diffraction（XRD）, and scanning electron microscopy（sEM） respectively. The results revealed that the distinct discharge channels and pores on the surface of the micro-arc-oxidition coatings appeared, and these channels were connected in the molten state. The electrolyte concentration was inversely proportional to the coating hardness; additionally, the coating prepared with sodium aluminate and sodium hypophosphite concentrations of 4 g/L and 0.5 g/L, respectively, was the most refined after high-temperature sintering, and it was demonstrated to better prevent oxidation. Increasing the electrolyte concentration coincided with fluctuating coating thermal shock resistance. The thermal shock resistance of the coating respectively prepared with sodium aluminate, and the sodium hypophosphite concentrations of 4 g/L and 0.5 g/L was the highest. Additionally, the high-concentration coatings performed significantly better than the low-concentration coatings. The oxidation resistance of the coating samples was also significantly higher than that of the TC4 titanium alloy substrate. The adhesion strength between the coatings and the substrate with and without the sealing treatment was measured by tensile tests. Then, the high-temperature oxidation performance of the coating samples with and without the sealing treatment was investigated by conducting a hightemperature oxidation experiment at a calcinating temperature of 500°C. The results indicate that the adhesion strength between the coatings and substrate was high for the as-prepared and sealed micro-arc oxidation samples regardless of whether they were calcined. The high-temperature oxidation mass increase curves for the sealed and unsealed coating sampl

关键词： Micro-arc oxidation Titanium alloy Aluminate High-temperature oxidation Electrolyte concentration

synthesis and Properties of Novel Polymers Based on PD Electron-withdrawing Unit

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Chinese Journal of Polymer science 2016年第1期34卷 34-43页

作者： Qing Zhao Jing-yu Qian Ying Liang Zhi-cheng Zhong song Wang Ke Liu 田文晶李在房 College of Chemical Engineering and Food science Hubei Key Laboratory of Low Dimensional Optoelectronic Materials and DevicesHubei University of Arts and ScienceXiangyang 441053China state Key Laboratory of supramolecular structure and Materials Jilin UniversityChangchun 130012China

In this article, we designed and synthesized a series of 5-（2,6-dimethyl-4H-pyran-4-ylidene）-1,3-diethyl-2-thioxodihydropyrimidine-4,6（1H, 5H）-dione（PD） unit based polymers（PFTDT, CZTDT, PHTDT and THTDT） for the first time. In these polymers, fluorene, 2,7-carbazole, phenothiazine and thiophene are employed as electron-donating groups and PD as electron-withdrawing group. TGA measurements demonstrated that these polymers possess good thermal stability（all above 377 °C）. Very broad absorption spectrum was also obtained from the polymer THTDT（300？850 nm）. CV characterization found that these polymers owned low highest occupied molecular orbital（HOMO） energy levels（？5.39 e V for THTDT, ？5.49 e V for CZTDT and ？5.78 e V for PFTDT） except for PHTDT（？5.17 e V）. The geometry and electronic properties of PFTDT, CZTDT, PHTDT and THTDT were investigated by means of theoretical calculation. All the above advantages demonstrate that PD based polymers could be candidates for electronic devices.

关键词： PD unit Polymer Low bandgap Low HOMO energy level