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Correlation Study on Grain Size Characteristics and Geotechnical Properties of Surface Sediments in Qingdao Offshore Area

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Journal of Ocean university of china 2024年第3期23卷 721-730页

作者： LI Anlong WANG Panpan guo Xijun JI Xiangkun SHEN kunming LIN Lin YAN Zhichao YUAN Lin Key Laboratory of Submarine Geosciences and Prospecting Techniques Ministry of Education and College of Marine GeosciencesOcean University of ChinaQingdao 266100China College of Marine Geoscience Ocean University of ChinaQingdao 266100China china Construction Second Engineering Bureau Co. LTDYueyang 414000China Tianjin Research Institute for Water Transport Engineering M.O.T.Tianjin 3000456China Lianyungang Xuwei Port Holding Group Co. Ltd.Lianyungang 222042China

The comprehension of sediment grain size parameters and the corresponding sedimentary environment holds paramount importance in elucidating the engineering geological attributes of the subaqueous *** study delineated the sedimentary environment zoning in the northern sea area of Qingdao through cluster analysis of grain size parameters derived from 123 surface sediment *** study analyzed the correlation between sediment geotechnical indices and grain size parameters across diverse sedimentary environments.A correlation equation was established for samples exhibiting a strong *** study found four distinct sedimentary environments in the study area:coastal,transitional,shallow sea,and *** the same sedimentary environment,the average grain size and sorting coefficient exhibit significant correlations with geotechnical indices such as water content,density,shear strength,plastic limit,liquid limit,and plastic ***,notable disparities in the correlation between grain size parameters and geotechnical indices emerge across different sedimentary environments.

关键词： grain size parameters cluster analysis sedimentary environment correlations geotechnical indexes

Abundant Semigroups with a Multiplicative Adequate Transversal

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Acta Mathematica Sinica,English Series 2002年第2期18卷 229-244页

作者： guo Xiao Jiang Department of mathematics.yunnan university.kunming 650091,P.R.china Department of mathematics Yunnan University Kunming P. R. China

The aim of this paper is to investigate abundant semigroups with a multiplicative adequate *** properties and characterizations for such semigroups are *** particular. we establish the structure of this class of abundant semigroups in terms of left normal bands,right normal braids and adequate semigroups with some simple Compatibility *** apply this structure to some special cases.

关键词： Abundant semigroup Adequate semigroup Left(Right)normal band

Activation of biomass-derived porous carbon for supercapacitors:A review

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Chinese Chemical Letters 2024年第7期35卷 121-138页

作者： Zixuan guo Xiaoshuai Han Chunmei Zhang Shuijian He kunming Liu Jiapeng Hu Weisen Yang Shaoju Jian Shaohua Jiang Gaigai Duan Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources International Innovation Center for Forest Chemicals and MaterialsCollege of Materials Science and EngineeringNanjing Forestry UniversityNanjing 210037China Institute of Materials Science and Devices Suzhou University of Science and TechnologySuzhou 215009China Faculty of Materials Metallurgy and Chemistry Jiangxi University of Science and TechnologyGanzhou 341000China Fujian Provincial Key Laboratory of Eco-Industrial Green Technology Key Laboratory of Green Chemical Technology of Fujian Province UniversityCollege of Ecological and Resources EngineeringWuyi UniversityWuyishan 354300China

Due to the advantages of renewable,low pollution and wide distribution of biomass resources,it is selected as the electrode material for *** carbon-based electrode materials,specific surface area and pore structure have a great *** and summarizing the influence of activation on pore structure will greatly broaden this *** on the activation mechanism of activator,this paper summarizes the latest progress of biomass activation applied to supercapacitors,including traditional physical and chemical activation methods and non-traditional methods such as biological activation method,self-activation method,template assisted activation method and green activator ***,the challenges,strategies and prospects for the future development of biomass-derived carbon material activation are pointed *** summary,this review will help researchers choose appropriate strategies to design biomass-derived carbon electrode materials for supercapacitors,thereby promoting the application of biomass materials.

关键词： Biomass-derived Activation Pore structure Electrochemistry Supercapacitor

Finite Dimensional Behavior of Global Attractors for Weakly Damping Ginzburg-Landau Equations Coupling with BBM Equations

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Communications in Nonlinear Science and Numerical Simulation 1998年第1期3卷 10-14页

作者： Boling guo * and Murong JIANG + *(Institute of Applied Physics and Computational mathematics,Beijing,100088,china) +(Department of mathematics,yunnan university,kunming 650091,china) E mail:guobl@*** Inst. Appl. Phys. and Compl. Math. Beijing 100088 China Department of mathematics Yunnan University Kunming 650091 China

ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｉｓｐａｐｅｒｗｅａｒｅｃｏｎｃｅｒｎｅｄｗｉｔｈｔｈｅｌｏｎｇｔｉｍｅｂｅｈａｖｉｏｒｏｆｓｏｌｕｔｉｏｎｓｏｆｔｈｅｆｏｌｏｗｉｎｇｐｅｒｉｏｄｉｃｉｎｉｔｉａｌｖａｌｕｅｐｒｏ... 详细信息

ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｉｓｐａｐｅｒｗｅａｒｅｃｏｎｃｅｒｎｅｄｗｉｔｈｔｈｅｌｏｎｇｔｉｍｅｂｅｈａｖｉｏｒｏｆｓｏｌｕｔｉｏｎｓｏｆｔｈｅｆｏｌｏｗｉｎｇｐｅｒｉｏｄｉｃｉｎｉｔｉａｌｖａｌｕｅｐｒｏｂｌｅｍｆｏｒｔｈｅｓｙｓｔｅｍｏ...

关键词： dimension attractor Ginzburg Landau equation couped BBM equationIntroduction

Congruences on ideal nil-extension of completely regular semigroups

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Chinese Science Bulletin 1998年第5期43卷 379-381页

作者： REN Xueming 1, 2 guo Yuqi 2 and CEN Jiaping (Shum Kar-ping) 31. Department of mathematics, Xi’an university of Architecture & Technology, Xi’an 710055, china 2. Department of mathematics, yunnan university, kunming 650091, china 3. Department of Department of mathematics Xi’an University of Architecture & Technology Xi’an China Department of mathematics Yunnan University Kunming China Department of mathematics Chinese University of Hong Kong Hong Kong

Let S be an ideal nil-extension of a completely regular semigroup K by a nil semigroup Q with zero. A concept of admissible congruence pairs (δ,ω) of S is introduced, where δ and ω are a congruence on Q and a congruence on K respectively. It is proved that every congruence on S can be uniquely respresented by an admissible congruence pair (δ,ω) of S. Suppose that ρ K denotes the Rees congruence induced by the ideal K of S. Then it is shown that for any congruence σ on S,a mapping Γ:σ|→(σ Q,σ K) is an order-preserving bijection from the set of all congruences on S onto the set of all admissible congruence pairs of S,where σ K is the restriction of σ to K and σ Q=(σ∨ρ K)/ρ K. Moreover,the lattice of congruences of S is also discussed. As a special case,every congruence on completely Archimedean semigroups S is described by an admissible quarterple of S. The following question is asked: Is the lattice of congruences of the completely Archimedean semigroup a semimodular lattice?

关键词： completely regular semigroups ideal nil-extension congruences.

Microstructure Evolution in Laser RS Co-base Metastable Alloy

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Chinese Journal of Lasers 1995年第5期B4卷 475-480页

作者： WANG Anan CHENG Shunqi guo Zhiyao (kunming university of Science and Technology,kunming 650093,china)YUN Bo (Micoanalysis Center,yunnan university,kunming 650091,china) yunnan Univ Kunming China

ＭｉｃｒｏｓｔｒｕｃｔｕｒｅＥｖｏｌｕｔｉｏｎｉｎＬａｓｅｒＲＳＣｏ－ｂａｓｅＭｅｔａｓｔａｂｌｅＡｌｌｏｙＷＡＮＧＡｎａｎ；ＣＨＥＮＧＳｈｕｎｑｉ；ＧＵＯＺｈｉｙａｏ（ＫｕｎｍｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅ... 详细信息

ＭｉｃｒｏｓｔｒｕｃｔｕｒｅＥｖｏｌｕｔｉｏｎｉｎＬａｓｅｒＲＳＣｏ－ｂａｓｅＭｅｔａｓｔａｂｌｅＡｌｌｏｙＷＡＮＧＡｎａｎ；ＣＨＥＮＧＳｈｕｎｑｉ；ＧＵＯＺｈｉｙａｏ（ＫｕｎｍｉｎｇＵｎｉｖｅｒｓｉｔｙｏｆＳｃｉｅｎｃｅａｎｄＴｅｃｈｎｏｌｏｇｙ，...

关键词： laser rapid solidification eutectic carbide defects

CAS-MCSCF Study on the Ground State of the Ditungsten Molecule(W_2)

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Chinese Chemical Letters 1997年第4期8卷 347-350页

作者： guo Liang LI Xue Yan TU Shu Shan DAI(Department of Chemistry, yunnan university, kunming. yunnan 650091) yunnan UNIV DEPT CHEMKUNMING 650091YUNNANPEOPLES R CHINA

Complete active space multiconfiguration self-consisten-field (CAS-MCSCF)calculations are carried out on the ground stae() of W_2. The spectroscopic properties(Re=2.078A. De=4.224eV and ωe=304.3cm-1) and the poential... 详细信息

关键词： CAS-MCSCF Study on the Ground State of the Ditungsten Molecule W2

Attractors for the Ginzburg-Landau-BBME quations in an Unbounded Domain

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Communications in Nonlinear Science and Numerical Simulation 1998年第2期 26-30页

作者： Boling guo * and Murong JIANG , * (Institute of Applied Physics and Computational mathematics, Beijing, 100088, china) (Department of mathematics, yunnan university, kunming 650091) (Graduate School of china Ac

ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｉｓｐａｐｅｒ，ｗｅｉｎｔｅｎｄｔｏｓｔｕｄｙｔｈｅｅｘｉｓｔｅｎｃｅｏｆｔｈｅｇｌｏｂａｌａｔｒａｃｔｏｒｆｏｒｔｈｅｆｏｌｏｗｉｎｇｉｎｉｔｉａｌｖａｌｕｅｐｒｏｂｌｅｍｏｆＧｉｎ... 详细信息

ＩｎｔｒｏｄｕｃｔｉｏｎＩｎｔｈｉｓｐａｐｅｒ，ｗｅｉｎｔｅｎｄｔｏｓｔｕｄｙｔｈｅｅｘｉｓｔｅｎｃｅｏｆｔｈｅｇｌｏｂａｌａｔｒａｃｔｏｒｆｏｒｔｈｅｆｏｌｏｗｉｎｇｉｎｉｔｉａｌｖａｌｕｅｐｒｏｂｌｅｍｏｆＧｉｎｚｂｕｒｇＬａｎｄａｕｅｑｕａｔ...

关键词： unbounded domain attractor Ginzburg Landau coupled with BBM equation

Emerging direct current triboelectric nanogenerator for high-entropy mechanical energy harvesting

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Science china(Technological Sciences) 2024年第5期67卷 1297-1316页

作者： CHEN Jie guo RuiLong guo HengYu College of Physics and Electronic Engineering Chongqing Normal UniversityChongqing 401331China Department of Applied Physics Chongqing UniversityChongqing 401331China

In the era of the Internet of Things(IoT),the provision of sustainable power to distributed,mobile,and low-power-consumption electronic devices is a critical *** overcome this challenge,the triboelectric nanogenerator(TENG),a highly efficient high-entropy mechanical energy harvesting device,was developed in *** device enables the direct conversion of irregular and low-frequency mechanical energy into pulsed alternating current(AC)***,the incompatibility of most electronic devices with AC signals necessitates rectifier circuits or generators that deliver direct current(DC)*** recent years,DC-TENGs have undergone extensive development,achieving significant milestones in various application fields while also facing crucial challenges that require *** this review,three categories of DC-TENG devices with distinct operating mechanisms are comprehensively explored:multiphase coupling,mechanical rectification,and air *** typical structures and working mechanisms are thoroughly discussed,and specific output performance limitations,along with corresponding optimization strategies,are ***,the applications of DC-TENGs in various scenarios are ***,the challenges faced by DC-TENGs and potential solutions are analyzed to guide further advancements in this technology.

关键词： TENG direct current working mechanisms output performance limitations optimization strategies