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Suggestion of advanced regression model on friction angle of fault gouge in South Korea

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Journal of Rock Mechanics and Geotechnical Engineering 2021年第6期13卷 1368-1379页

作者： Seong-woo Moon Hyun-Seok Yun yong-Seok Seo Department of Earth and Environmental Sciences Chungbuk National University1 Chungdae-roCheongju-siChungcheongbuk-do28644South Korea

Although friction characteristics of fault gouge are important to understand reactivation of fault,behavior of earthquake,and mechanism of slope failure,analysis results of fault gouge have low accuracy mostly than those of soils or rocks due to its high heterogeneity and low ***,to improve the accuracy of analysis results,we conducted simple regression analysis and structural equation model analysis and selected major influential factors of friction characteristics among many factors,and then we deduced advanced regression model with the highest coefficient of determination(R^(2)) via multiple regression *** most coefficients of determination in simple regression analysis are below0.3-0.4,coefficient of determination in multiple regression analysis is remarkably large as 0.657.

关键词： Fault gouge Friction angle Simple regression analysis Structural equation model analysis Multiple regression analysis

PUB22 and PUB23 U-box E3 ubiquitin ligases negatively regulate 26S proteasome activity under proteotoxic stress conditions

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Journal of Integrative Plant Biology 2022年第3期64卷 625-631页

作者： Min yong Ahn Dong Hye Seo woo Taek Kim Department of Systems Biology Division of Life ScienceYonsei UniversitySeoul 03722Korea Institute of Life Science and Biotechnology Yonsei UniversitySeoul 03722Korea

The mechanism regulating proteasomal activity under proteotoxic stress conditions remains ***,we showed that arsenite-induced proteotoxic stress resulted in upregulation of Arabidopsis homologous PUB22 and PUB23 U-boxE3 ubiquitin ligases and that pub22 pub23 double mutants displayed arsenite-insensitive seed germination and root growth ***22/PUB23 downregulated 26 S proteasome activity by promoting the dissociation of the 19 S regulatory particle from the holo-proteasome complex,resulting in intracellular accumulation of UbG76 VGFP,an artificial substrate of the proteasome complex,and insoluble poly-ubiquitinated *** results suggest that PUB22/PUB23 play a critical role in arsenite-induced proteotoxic stress response via negative regulation of 26 S proteasome integrity.

关键词： Arabidopsis thaliana proteotoxic stress sodium arsenite U-box E3 ligases PUB22/23 26S proteasome complex

Observation and Numerical Simulations with Radar and Surface Data Assimilation for Heavy Rainfall over Central Korea

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Advances in Atmospheric Sciences 2011年第3期28卷 573-590页

作者： ji-Hyun HA Hyung-woo KIM Dong-Kyou LEE Atmospheric Sciences Program School of Earth and Environmental SciencesSeoul National UniversitySeoul 151-747Korea

This study investigated the impact of multiple-Doppler radar data and surface data assimilation on forecasts of heavy rainfall over the central Korean Peninsula;the Weather Research and Forecasting(WRF) model and its three-dimensional variational data assimilation system(3DVAR) were used for this purpose. During data assimilation,the WRF 3DVAR cycling mode with incremental analysis updates(IAU) was used. A maximum rainfall of 335.0 mm occurred during a 12-h period from 2100 UTC 11 July 2006 to 0900 UTC 12 July *** radar data showed that the heavy rainfall was due to the back-building formation of mesoscale convective systems(MCSs).New convective cells were continuously formed in the upstream region,which was characterized by a strong southwesterly low-level jet(LLJ).The LLJ also facilitated strong convergence due to horizontal wind shear,which resulted in maintenance of the *** assimilation of both multiple-Doppler radar and surface data improved the accuracy of precipitation forecasts and had a more positive impact on quantitative forecasting(QPF) than the assimilation of either radar data or surface data *** back-building characteristic was successfully forecasted when the multiple-Doppler radar data and surface data were *** data assimilation experiments,the radar data helped forecast the development of convective storms responsible for heavy rainfall,and the surface data contributed to the occurrence of intensified low-level *** surface data played a significant role in enhancing the thermal gradient and modulating the planetary boundary layer of the model,which resulted in favorable conditions for convection.

关键词： radar and surface data data assimilation mesoscale convective system heavy rainfall

Electrochemical performance of all-solid lithium ion batteries with a polyaniline film cathode

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Journal of Energy Chemistry 2016年第1期25卷 93-100页

作者： ji-woo Oh Rye-Gyeong Oh yongku Kang Kwang-Sun Ryu Department of Chemistry University of Ulsan Advanced Materials Divisions Korea Research Institute of Chemical Technology

We have prepared a high-density polyaniline（PANI） paste（50 mg/m L）, with similar physical properties to those of paints or pigments. The synthesis of PANI is confirmed by Fourier transform infrared（FT-IR） spectroscopy. The morphologies of PANI, doped PANI, and doped PANI paste are confirmed by scanning electron microscopy（SEM）. Particles of doped PANI paste are approximately 40–50 nm in diameter, with a uniform and cubic shape. The electrochemical performances of doped PANI paste using both liquid and solid polymer electrolytes have been measured by galvanostatic charge and discharge process. The cell fabricated with doped PANI paste and the solid polymer electrolyte exhibits a discharge capacity of ～87 μAh/cm2（64.0 m Ah/g） at the second cycle and～67 μAh/cm2（50.1 m Ah/g） at the 100 th cycle.

关键词： Lithium ion batteries Cathode Conducting polymer Polyaniline Flexible battery

Selective Deoxygenation of Nitrones Mediated by Sm/CoCl_26H_2O Reductive System

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Chinese Chemical Letters 2001年第11期12卷 945-946页

作者： ji Ming ZHANG yong Min ZHANG Department of Chemistry Zhejiang University(Xixi Campus)Hangzhou 310028 State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai 200032

In the presence of metallic samariumcobalt (II) chloride hexahydrate, the nitrones can be reduced to the corresponding imines in moderate to high yields under mild and neutral conditions.

关键词： Nitrone samarium cobalt (II) chloride hexahydrate.

Effect of Subcritical Annealing Temperature on Microstructure and Mechanical Properties of SCM435 Steel

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Journal of Iron and Steel Research International 2015年第11期22卷 1031-1036页

作者： Cheng ji Lei WANG Miao-yong ZHU School of Materials and Metallurgy Northeastern University

The effect of subcritical annealing temperature on microstructure and mechanical properties of SCM435 steel was investigated through changing the heating and soaking temperature as 660 °C, 680 °C, 700 °C, 720 °C and 745 °C. The microstructure and mechanical properties of intercritically annealed specimens were analyzed. With increasing the subcritical annealing temperature from 660 °C to 720 °C, the spheroidization ratio gradually increased, and the mechanical properties, formability and Vickers hardness were improved. According to the comprehensive comparison of mechanical properties and formability, the subcritical process at soaking temperature of 680-720 °C could achieve similar annealing effect as that of intercritical process. Therefore, the subcritical annealing temperature could be set as 700 °C in practice, with the Ac1 temperature fluctuation within ±20 °C, and the applicability and stability of subcritical annealing were guaranteed in industrial application. The plant results of the cold heading showed that the subcritical annealing could replace original intercritical annealing successfully with significantly saving time and energy.

关键词： subcritical annealing spheroidization ratio SCM435 steel microstructure mechanical property formability

The Monotone Method for Controllability of the Nonlinear Evolution Systems

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Acta Mathematicae Applicatae Sinica 2011年第4期27卷 721-726页

作者： Yue LU yong LI Ming-ji LIU College of Mathematics Jilin University Changchun 130012 China

In this paper, we study the controllability of the nonlinear evolution systems. We establish the controllability results by using the monotone operator theory. No compactness assumptions are imposed in the main result... 详细信息

关键词： controllability monotone operator nonlinear control systems

SUSTAINABLE VALUE ON CONSTRUCTION PROJECTS AND LEAN CONSTRUCTION

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Journal of Green Building 2008年第1期3卷 156-167页

作者： jin-woo Bae yong-woo Kim Dept.of Civil and Environmental Engineering College of Engineering130e Architecture HallUniversity of WashingtonSeattleWA 98195 Dept.of Construction Management College of Architecture and Urban Planning120h Architecture HallUniversity of WashingtonSeattleWa 98195

Lean production is a systemic approach to meeting customer expectations, whatever they value, by reducing *** fi rst glance, lean then could only contribute to sustainability, while sustainability is achieved only if the customervalues sustainability. The paper has two objectives. One is to examine whether sustainability is feasible using leanproduction with sustainability as an added value. The second objective is to examine how current lean constructiontools and methods impact the construction and operation of sustainable facilities. The authors also suggest how theselean construction tools and methods have evolved to contribute to green construction. For this study, the authorsinterviewed lean adopters and conducted literature surveys on lean principles and methods, and its impacts on theeconomic, social and environmental sustainability.

关键词： lean construction sustainable construction sustainable assessment sustainability

Entropy of the Nonminimally Coupled Quantum Scalar Fields in a Stationary Axisymmetric Einstein-Maxwell Dilaton- Axion Black Hole

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Chinese Physics Letters 1999年第11期16卷 784-786页

作者： jiNG ji-liang WANG yong-jiu Department Physics and Institute of Physics Hu’nan Normal UniversityChangsha 410081 Astronomy and Applied Physics Department University of Science and Technology of ChinaHefei 230026

The statistical-mechanical entropy of the stationary axisymmetric Einstein-Maxwell dilaton-axion black hole is investigated by using the “brick wall” model in which the original Dirichlet condition is replaced by a scattering ansatz for the field functions at the event horizon and regularized with the Pauli-Villars scheme. It is also shown, for the Kerr black hole, that the statistical-mechanical entropy obtained from our derivation coincides with the one-loop correction to its thermodynamical entropy obtained by the conical singularity method.

关键词： method Einstein entropy