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Modeling the Sedimentation of Red Blood Cells in Flow under Strong External Magnetic Body Force Using a Lattice Boltzmann Fictitious DomainMethod

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Numerical Mathematics(Theory,Methods and Applications) 2014年第4期7卷 512-523页

作者： Xing Shi guang lin School of Aeronautics and Aerospace Zhejiang UniversityHangzhou310027P.R.China Department of Mathematics School of Mechanical EngineeringPurdue UniversityWest LafayetteIN 47907USA Computational Mathematics Group Fundamental and Computational Sciences DirectoratePacific Northwest National Laboratory902 Battelle Blvd.P.O.Box 999WA 99352USA.

Experimental observations show that a strong magnetic field has a dramatic influence on the sedimentation of RBCs,which motivates us to model the sedimentation of red blood cell(RBC)under strong external magnetic body *** model the sedimentation of a RBC in a square duct and a circular pipe,a recently developed technique derived from the lattice Boltzmann and the distributed Lagrange multiplier/fictitious domain methods(LBM-DLM/FD)is extended to employ the mesoscopic network model for simulations of the sedimentation of a RBC in *** flow is simulated by the LBM with a strong magnetic body force,while the network model is used for modeling RBC *** fluid-RBC interactions are enforced by the Lagrange *** sedimentation of RBC in a square duct and a circular pipe is simulated,which demonstrates the developed method’s capability to model the sedimentation of RBCs in various *** results illustrate that the terminal settling velocity increases incrementally with the exerted body *** deformation of RBC has a significant effect on the terminal settling velocity due to the change in the frontal *** larger the exerted force,the smaller the frontal area and the larger the RBC deformation ***,the wall effect on the motion and deformation of RBC is also investigated.

关键词： Sediment erythrocyte fictitious domain method lattice Boltzmann method flowstructure interaction red blood cell

Modeling and experimental validation of vertical landing reusable launch vehicle under symmetric landing conditions

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Chinese Journal of Aeronautics 2022年第12期35卷 156-172页

作者： Shuai YUE Qing lin guang ZHENG Zhonghua DU School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing 210094China Aerospace System Engineering Shanghai Shanghai 201109China Key Laboratory of Impact and Safety Engineering Ministry of EducationNingbo UniversityNingbo 315211China

This paper illustrates the dynamic modeling,experimental validation of Reusable Launch Vehicle under symmetric landing ***,a new quasi-3D dynamic landing model of vehicle under 2-2 and 1-2-1 symmetric landing mode is established,which can predict the plane motion of the main body and the spatial motion of landing struts and *** strut force,footpad-ground contact force and the liquid spring damper are also included in the ***,the landing impact experiments are performed for 2-2 and 1-2-1 symmetric landing *** main and auxiliary strut force are obtained,along with the force-stroke diagram of *** comparing with experimental data,the accuracy of simulation model is *** is found that the simulation model possesses good match with tested responses in damping stroke and main strut *** simulation and experiment also indicate the same trend in auxiliary strut force and main body *** main discrepancies attribute to the simplified structural flexibility and nonlinear contact。

关键词： Dynamics Impact Landing gear Launch vehicle Modeling

A New Sesquiterpene from the Alga Caloglossa Leprieurii

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Chinese Chemical Letters 2002年第10期13卷 953-954页

作者： Xiao Hua XU Chang Jian lin Jian Hua LU guang min YAO Yan ming LI Institute of Elemento-Organic Chemistry Nankai UniversityTianjin 300071

A new bromo-sesquiterpene 1, has been isolated from the alga Caloglossa leprieurii collected from the XiSha islands in south china sea. Its structure has been determined on the basis of spectral analysis. and The rela... 详细信息

关键词： Caloglossa leprieuriii hydroclathrol spectral analysis.

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客户端独立的IP地理定位研究综述

软件学报 2025年第1期36卷 321-340页

作者：林金磊李城龙宋光磊樊琳娜王之梁杨家海清华大学网络科学与网络空间研究院中关村实验室国防科技大学信息通信学院

准确、快速地获取IP地理定位信息对于各种网络应用而言至关重要. IP地理定位指将互联网实体的IP地址转换为其地理位置的技术.然而,互联网规模的迅速扩大和互联网应用的快速发展,给IP地理定位研究带来了巨大的挑战.首先,复杂的网络结构... 详细信息

准确、快速地获取IP地理定位信息对于各种网络应用而言至关重要. IP地理定位指将互联网实体的IP地址转换为其地理位置的技术.然而,互联网规模的迅速扩大和互联网应用的快速发展,给IP地理定位研究带来了巨大的挑战.首先,复杂的网络结构和网络环境导致IP定位技术的精确度远远无法满足实际的应用需求.其次,IP地理定位在各个领域的作用日益凸显,如何精准、高效、可靠地计算互联网主机的地理位置正在成为各行关注的焦点.因此,通过设备的IP地址对其进行地理定位以支撑复杂的上层应用尤为重要.自2001年以来,学术界和工业界围绕上述问题开展了大量的研究.系统地梳理客户端独立的IP地理定位方面的相关工作,系统地整理基于网络测量的IP地理定位研究分类方法.根据定位数据是否由主动测量产生,将相关研究分为主动的IP定位技术、被动的IP定位技术和主被动结合的IP定位技术.进一步,对每一类方法进行更细粒度的分类并分析其主要的优缺点.在此基础上,总结IP地理定位领域的最新进展和研究挑战,并展望其未来发展方向.

关键词：网络测量 IP地理定位地理定位地标

Suppression of Rayleigh-Taylor instability by gyroviscosity and sheared axial flow in imploding plasma pinches

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核聚变与等离子体物理 2007年第2期27卷 87-94页

作者： HUANG lin JIAN guang-de QIU Xiao-ming Southwestern In stitute of Physics Chengdu 610041

The synergistic stabilizing effect of gyroviscosity and sheared axial flow on the Rayleigh-Taylor instability in Z-pinch implosions is studied by means of the incompressible viscid magneto-hydrodynamic *** gyroviscosity(or finite Larmor radius) effects are introduced in the momentum equation through an anisotropic ion stress *** relation with the effect of a density discontinuity is *** results indicate that the short-wavelength modes of the Rayleigh-Taylor instability are easily stabilized by the gyroviscosity *** long wavelength modes are stabilized by the sufficient sheared axial ***,the synergistic effects of the finite Larmor radius and sheared axial flow can heavily mitigate the Rayleigh-Taylor *** synergistic effect can compress the Rayleigh-Taylor instability to a narrow wave number *** with a sufficient gyroviscosity and large enough flow velocity,the synergistic effect can completely suppressed the Rayleigh-Taylor instability in whole wave number region.

关键词：雷利-泰勒不稳定性回转粘性内向爆炸等离子体箍缩增敏作用有限拉莫尔旋进半径增长比率

Rapid Access to Free Phenols by Photocatalytic Acceptorless Dehydrogenation of Cyclohexanones at Room Temperature

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Chinese Journal of Chemistry 2023年第21期41卷 2773-2778页

作者： lin min Jiani lin Wei Shu Shenzhen Grubbs Institute Department of Chemistryand Guangdong Provincial Key Laboratory of CatalysisSouthern University of Science and TechnologyShenzhenGuangdong518055 China

Phenols are ubiquitous substructures in natural products and bioactive ***,practical methods for the direct construction of phenols under mild conditions remain ***,a photocatalytic acceptorless hydrogen-evolution aromatization of cyclohexanones or cyclohexenones at room temperature has been *** reaction features the visible-light and cobalt co-catalyzed sequential dehydrogenation of in-situ formed enol silyl ethers,which are regarded as a challenging *** operationally simple method enables the synthesis of a series of phenols with diverse substitution patterns from cyclohexanones or ***,diverse substituted 1,2-,1,3-,and 1,4-benzenediols were obtained from cyclohexanediones,providing a general and straightforward method for the synthesis of phenols from simple starting materials under mild conditions.

关键词： Phenols Photocatalysis Dehydrogenation Cyclohexanones Cobalt catalysis Radicals

White Noise Approach to The Construction of Φ_4~4 Quantum Fields(Ⅱ)

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Acta Mathematica Sinica,English Series 2007年第5期23卷 895-904页

作者： guang lin RANG Zhi Yuan HUANG College of Mathematics and Statistics Wuhan University Wuhan 430072 P. R. China Department of Mathematics Hubei University Wuhan 430062 P. R. China Department of Mathematics Huazhong University of Science and Technology Wuhan 430074 P. R. China

In this paper a complete proof for the existence of generalized operators satisfying abstract 02 dynamical equations of quantum motions δ^2/δt^2Ф（t, x）＋（ △- m^2）Ф（t, x） = -λ ：Ф^3（t, x）, subject to a suitable initial condition, is given under the framework of white noise analysis. Also some important commutation relations related to Ф44 quantum fields are discussed and proved in detail.

关键词： White noise calculus Generalized operator Ф4 4 quantum fields

The Effects of Cooling Mode on the Properties of Ti–Nb Microalloyed High-strength Hot-rolled Steels

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Journal of Wuhan University of Technology(Materials Science) 2019年第3期34卷 692-697页

作者： ZHU min XU guang The State Key Laboratory of Refractories and Metallurgy Key Laboratory for Ferrous Metallurgy and Resources Utilization of Ministry of EducationWuhan University of Science and TechnologyWuhan430081China Research and Development Center of Wuhan Iron and Steel(Group)Corp Wuhan430080China

The industrial trials of two cooling modes, i e, water cooling in forepart + air cooling in later part (WAC) and air cooling in forepart + water cooling in later part (AWC), were carried out for a Ti- Nb microalloyed steel. The average cooling rates and coiling temperature were the same for two modes. The continuous cooling transformation (CCT) curve of the tested steel was drawn. The effects of the cooling mode on the microstructure, precipitates, and properties of the steels were investigated. Results show that the strength of the steel in the WAC mode is significantly larger than that in the AWC mode, mainly because the smaller the grain size, the more and finer the grain precipitates. Therefore, when the average cooling rate is constant, the fast cooling in the forepart is an effective method to increase the strength of steels. However, the increase in the strength is accompanied by the decrease in toughness, so that the toughness of the steel should be considered when changing the cooling mode.

关键词： cooling mode strength toughness microalloyed steel fracture

国有资产改革对自然资源资产“两权”分离的启示与借鉴

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生态经济 2025年第1期41卷 195-200页

作者：林霖黄志豪康琴陈丹张敏王珂虞舟鲁中国计量大学人文与外语学院浙江杭州310018 浙江数治空间规划设计有限公司浙江杭州310030 浙江省测绘科学技术研究院浙江杭州310007 浙江大学环境与资源学院浙江杭州310058

我国国有资产管理体制经过了从统一到分散再到统一的改革历程。在此过程中,国务院设立国有资产监督管理委员会,并逐步推动国有资产管理方式从以管企业为主向以管资本为主转变,探索了国有资产所有权与监管权“两权”分离的路径。鉴于自... 详细信息

我国国有资产管理体制经过了从统一到分散再到统一的改革历程。在此过程中,国务院设立国有资产监督管理委员会,并逐步推动国有资产管理方式从以管企业为主向以管资本为主转变,探索了国有资产所有权与监管权“两权”分离的路径。鉴于自然资源资产管理与国有资产管理存在较强相似性,国有资产投资运营公司在促进国有资产“两权”分离中的关键作用,为自然资源资产所有权与监管权的分离提供了重要启示和借鉴。自然资源资产管理在完成委托代理机制试点后,建议管理方式由“资源管理”逐步转向“资产管理”,授权设立自然资源投资运营公司,以实现自然资源资产“两权”的有效分离,从“自然资源部门—自然资源资产”的二级管理体制转变为“自然资源部门—自然资源投资运营公司—自然资源资产”的三级管理体制,以期为推进自然资源资产的有效监管和资产增值提供改革思路与参考。

关键词：国有资产改革自然资源资产 “两权”分离投资运营公司