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stability of the Rarefaction Wave for a non-is.n.ropic navier-stokes/Allen-Cahn system

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Chinese Annals of Mathematics,series B 2022年第2期43卷 233-252页

作者： Ting luo school of Information Management Jiangxi University of Finance and EconomicsNanchang 330032China

This paper is concerned with the large time behavior of solutions to the Cauchy problem for a one-dimensional compressible non-is.n.ropic navier-stokes/Allen-Cahn system which is a combination of the classical navier-stokes system with an Allen-Cahn phase field *** by the relationship between navier-stokes/Allen-Cahn and navier-stokes,the author can prove that the solutions to the one dimensional compressible non-is.n.ropic navier-stokes/Allen-Cahn system tend time-asymptotically to the rarefaction wave,where the strength of the rarefaction wave is.n.t required to be *** proof is mainly based on a basic energy method.

关键词： navier-stokes/Allen-Cahn system Rarefaction wave stability

non-spherical polymersomes driven by directional aromatic interactions

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science China Materials 2018年第3期61卷 437-438页

作者： Mingyan luo Yunjun luo Xiaoyu Li school of Materials science and Engineering Beijing Institute of Technology

Polymersomes.n.noscopic polymer vesicles self-assembled from s.n.hetic block copolymers,are ideal candidates for drug delivery and s.n.hetic biology,due to their characteristic of high stability,chemical

关键词： PEG nIPAM nature non-spherical polymersomes driven by directional aromatic interactions THF

Oxidation and Electrical Properties of Cu-Mn_(3)O_(4)Composite Coating Obtained by Electrodeposition on sOFC Interconnects

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Journal of Wuhan University of Technology(Materials science) 2023年第1期38卷 72-78页

作者：吕烨 luo shengyun school of Materials science and Engineering Guizhou Minzu UniversityGuiyang 550025China

Cu-Mn_(3)O_(4)composite coating was prepared on the sUs 430 ferritic stainless steel by electrodeposition and then exposed in air at 800℃corresponding to the cathode atmosphere of solid oxide fuel cell(sOFC).A dual-layer oxide structure mainly compris.n. an external layer of CuO followed by(Cu,Mn,Fe)_(3)O_(4)spinel and an internal layer of Cr-rich oxide was thermally developed on the coated *** scale area-specific resistances(AsRs)of the coated steels were lower than the scale AsR of the uncoated steel after identical thermal *** external layer of CuO/(Cu,Mn,Fe)_(3)O_(4)spinel not only served as a barrier to reduce the growth rate of Cr-rich oxide internal layer and to suppress the outward diffusion of Cr,but also lowered the surface scale AsRs considerably.

关键词： solid oxide fuel cell steel interconnect Cu-Mn_(3)O_(4)composite coating area specific resistance

Touristic urbanization and greening of coastal dune fields:A long-term assessment of a temperate s.n.y barrier of Argentina

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Journal of Geographical sciences 2025年第1期35卷 206-230页

作者： GARZO Pedro Andrés DADOn José Roberto IsLA Federico Ignacio Instituto de Investigaciones Marinas y Costeras (IIMyC-COnICET/UnMDP) Instituto de Geología de Costas y del Cuaternario Dr.Enrique J.schnack (IGCC-CIC/UnMDP) Universidad de Buenos Aires Facultad de Arquitectura Dise?o y Urbanismo Centro de Investigaciones Gestión de Espacios Costeros (GEC-FADU/UBA) Consejo nacional de Investigaciones Científicas y Técnicas (COnICET)

Dune barrier systems repres.n. highly sought-after coastal landscapes for tourism and urban development around the world. However, a century ago, they were considered hazardous environments due to their great dynamic nature. As a result, stabilization practices were considered necessary. The systematic introduction of fast-growing exotic trees helped stabilize the s.n., making it easier for tourism urbanization to take place, but also leading to erosion processes. This paper aims to assess long-term changes in vegetation cover over a large temperate barrier in Argentina. This complex region includes urban resorts, afforestation zones, and protected areas. A GIs-based geospatial analysis was conducted us.n. a large satellite database(> 350 images), and the future evolution of the vegetation was modeled. The results revealed two primary spatiotemporal patterns associated with a gradual expansion of vegetation cover, accompanied by a concurrent reduction in s.n.y areas. In 1986, the dune area comprised 75% more surface than vegetation, whereas in 2021, it repres.n.ed 60% less than vegetation. Furthermore, the 2050 scenario suggests a potential 40% reduction of dunes in certain areas. It is.n.cessary to enhance management actions aimed at maintaining dune mobility and ensuring local and regional sediment balance. Long-term management strategies must focus on restoring native plant communities and controlling invasive species, and avoiding new dune fixation initiatives based on the introduction of exotic species.

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DETERMInATIOn OF BLAnK HOLDER FORCE In sHEET METAL DEEP DRAWInG PROCEss

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Acta Metallurgica s.n.ca(English Letters) 2003年第1期16卷 31-34页

作者： Y.J.luo Y.Q.Zhang D.n.He Dept. of Plasticity Technol. Shanghai Jiaotong Univ. Shanghai 200030 China

Blank holder force (BHF) is an important measure to control the sheet metal forming. BHF is identified quickly us.n. artificial neural network (Ann) on the basis of its analytical description. And critical rupture and... 详细信息

关键词： blank holder force sheet metal deep drawing artificial neural network

numerical analysis on shock-cylinder interaction us.n. immersed boundary method

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science China(Technological sciences) 2017年第9期60卷 1423-1432页

作者： luo Kun luo YuJuan JIn Tai FAn JianRen state Key Laboratory of Clean Energy Utilization Zhejiang University Hangzhou 310027 China

The problem of shock interaction with a rigid circular cylinder has been investigated us.n. a compressible immersed boundary method coupled with high-order weighted-ess.n.ially non-oscillatory(WEnO) ***,the accuracy of the developed code is ***,influences of the incident shock Mach number on the flow-field structure and dynamic drag coefficient,as well as time evolution of the flow field are *** different shock Mach number,the flow structure shows very different *** a given dimensionless time,both the normalized shock detachment distance and the normalized vertical distance from the highest point of the primary reflected shock to the centerline of the cylinder decreases with increas.n. shock Mach ***,location of the upper triple point varies.n.n-monotonically with shock Mach *** a case with given shock Mach number,the trajectory of the upper triple point and the time evolution of the normalized vertical distance from the highest point of the primary reflected shock to the centerline of the cylinder can both be predicted by linear ***,the time evolution of the normalized shock detachment distance is biased to be ***,time evolution of force exerted on the cylinder is quite unsteady for a case with given shock Mach number and given cylinder *** small shock Mach number,there exists a negative valley,and it disappears when the incident shock Mach number increases to a large value,e.g.,***,correlations to predict the occurrence of the peak drag and its value under different shock Mach numbers have been proposed.

关键词： shock-cylinder interaction immersed boundary method shock Mach number flow structure unsteady force

Dynamic and electrical responses of a curved s.n.wich beam with glass reinforced laminate layers and a pliable core in the pres.n.e of a piezoelectric layer under low-velocity impact

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Applied Mathematics and Mechanics(English Edition) 2024年第1期45卷 155-178页

作者： n.sHAHVEIsI s.FELI Department of Mechanical Engineering Razi UniversityKermanshah ***Iran

The dynamic responses and generated voltage in a curved s.n.wich beam with glass reinforced laminate(GRL)layers and a pliable core in the pres.n.e of a piezoelectric layer under low-velocity impact(LVI)are *** current study aims to carry out a dynamic analysis on the s.n.wich beam when the impactor hits the top face sheet with an initial *** the layer analysis,the high-order shear deformation theory(HsDT)and Frostig's second model for the displacement fields of the core layer are *** classical non-adhesive elastic contact theory and Hunter's principle are used to calculate the dynamic responses in terms of *** order to validate the analytical method,the outcomes of the current investigation are compared with those gained by the experimental tests carried out by other researchers for a rectangular composite plate subject to the *** element(FE)simulations are conducted by means of the ABAQUs *** effects of the parameters such as foam modulus,layer material,fiber angle,impactor mass,and its velocity on the generated voltage are reviewed.

关键词： analytical model piezoelectric layer curved s.n.wich beam glass reinforced laminate(GRL) pliable core low-velocity impact(LVI) classical non-adhesive elastic contact theory

structural phase transition, precursory electronic anomaly, and strong-coupling superconductivity in quasi-skutterudite (sr1-xCax)3Ir4sn13 and Ca3Rh4sn13

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Chinese Physics B 2018年第7期27卷 163-170页

作者： Jun luo Jie Yang s Maeda Zheng Li Guo-Qing Zheng Institute of Physics Chinese Academy of Sciences and Beijing National Laboratory for Condensed Matter Physics Beijing 100190 China school of Physical sciences University of Chinese Academy of Sciences Beijing 100049 China Department of Physics Okayama University Okayama 700-8530 Japan

The interplay between superconductivity and structural phase transition has attracted enormous interest in recent years. For example, in Fe-pnictide high temperature superconductors, quantum fluctuations in association with structural phase transition have been proposed to lead to many novel physical properties and even the superconductivity itself. Here we report a finding that the quasi-skutterudite superconductors （sr1-xCax）3Ir4sn13 （x = 0, 0.5, 1） and Ca3Rh4snl3 show some unusual properties similar to the Fe-pnictides, through 119sn nuclear magnetic res.n.nce （nMR） measurements. In （sr1-xCax）3Ir4sn13, the nMR linewidth increases below a temperature T＊ that is higher than the structural phase transition temperature Ts. The spin-lattice relaxation rate （1/T1 ） divided by temperature （T）, 1/TI T and the Knight shift K increase with decreas.n. T down to T＊, but start to decrease below T＊, and followed by more distinct changes at Ts. In contrast, none of the anomalies is observed in Ca3Rh4sn13 that does.n.t undergo a structural phase transition. The precursory phenomenon above the structural phase transition resembles that occurring in Fe-pnictides. In the superconducting state of Ca3Ir4sn13, 1/T1 decays as exp（-△/kBT） with a large gap △ = 2.21kBTc, yet without a Hebel-slichter coherence peak, which indicates strong-coupling superconductivity. Our results provide new insight into the relationship between superconductivity and the electronic-structure change associated with structural phase transition.

关键词： nuclear magnetic res.n.nce antiferromagnetic fluctuation structural phase transition phase diagram

Progress in non-viral localized delivery of siRnA therapeutics for pulmonary diseases

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Acta Pharmaceutica s.n.ca B 2023年第4期13卷 1400-1428页

作者： Jingjing Gao Ziting Xia Dilrasbonu Vohidova John Joseph James.n.luo nitin Joshi Center for nanomedicine Department of AnesthesiologyPerioperative and Pain MedicineBrigham and Women's HospitalBostonMA 02115USA Harvard Medical school BostonMA 02115USA Department of surgery Brigham and Women's HospitalBostonMA 02115USA

Emerging therapies based on localized delivery of siRnA to lungs have opened up exciting possibilities for treatment of different lung *** delivery of siRnA to lungs has shown to result in severalfold higher lung accumulation than systemic route,while minimizing non-specific distribution in other ***,to date,only 2 clinical trials have explored localized delivery of siRnA for pulmonary *** we systematically reviewed recent advances in the field of pulmonary delivery of siRnA us.n. non-viral *** firstly introduce the routes of local administration and analyze the anatomical and physiological barriers towards effective local delivery of siRnA in *** then discuss current progress in pulmonary delivery of siRnA for respiratory tract infections,chronic obstructive pulmonary diseases,acute lung injury,and lung cancer,list outstanding questions,and highlight directions for future *** expect this review to provide a comprehensive understanding of current advances in pulmonary delivery of siRnA.

关键词： siRnA non-viral delivery Injection routes Respiratory tract infections Particle pharmacokinetics Pulmonary inflammation Acute lung injury Lung cancer