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Neural Regeneration Research 2025年第10期20卷 2895-2897页

作者： Nicolas Hugues yu luo Department of Molecular and Cellular Biosciences University of CincinnatiCincinnatiOHUSA Neuroscience Graduate Program University of CincinnatiCincinnatiOHUSA Division of Immunobiology Cincinnati Children’s Hospital Medical CenterUniversity of Cincinnati College of MedicineCincinnatiOHUSA

Adult microglia,by continuously sensing changes in their environment and communicating with nearly all brain cell types,are considered to be the immune sentinels of the *** the healthy central nervous system(CNS),microglia display a unique molecular homeostatic signature(i.e.,Tmem119,P2ry12,Sall1,Siglech,Gpr34,and Hexb)(Figure 1A).

关键词： Figure signature critical

Light People:*** John Pendry,father of metamaterials,spoke about the future of meta

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Light(Science & Applications) 2023年第3期12卷 329-334页

作者： Chenzi Guo yu luo Changchun Institute of Optics Fine Mechanics and PhysicsChinese Academy of SciencesChangchunChina School of Electrical and Electronic Engineering Nanyang Technological UniversitySingaporeSingapore

When consulting with the Marconi company in 1995,*** John Pendry uncovered exotic structures that gave negative permittivity and negative permeability,*** 1999,*** introduced split ring resonators(SRRs),and later in 2000,*** Smith and *** Schultz experimentally showed that periodic array of SRRs and continuous wires previously proposed by *** could exhibit simultaneously negative values of effective permeability and permittivity at the same *** after,*** revealed that a slab of material with simultaneous negative permittivity and permeability could challenge the Abbe diffraction limit on traditional lenses and focus all Fourier components of a point object onto a perfect image,leading to a"perfect lens".The vision of a perfect lens attracted extensive research interest and opened a new field which was later widely known as *** two decades on,the explosion of metamaterials has revolutionized numerous researches in physics,materials science,chemistry,and *** shed light on the research direction of metamaterials,Light:Science&Applications invited Sir John Pendry,father and living legend of metamaterials,to speak about the future of *** original interview can be accessed in Supplementary video.

关键词： perfect simultaneous limit

Mapping the urban natural ventilation potential by hydrological simulation

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Building Simulation 2021年第2期14卷 351-364页

作者： Ziyu Tong yu luo Juelun Zhou School of Architecture and Urban Planning Nanjing UniversityNanjing210093China

Urban wind environments are closely related to air pollution and outdoor human *** urban natural ventilation potential(NVP)is an important factor in urban planning and ***,for ventilation studies on urban scales,neither macroscale numerical simulations(i.e.,WRF,MM5,etc.)nor microscale computational fluid dynamics(CFD)simulations can conduct efficient *** on the similarity between water flows and airflows,an efficient approach is proposed in this paper to map the urban *** integrating the urban terrain model,urban form model,and prevailing wind pressure model,an airflow digital elevation model(AF-DEM),which represents the resistance to airflow and can be used for a hydrological simulation,is generated and applied to evaluate the urban airflow patterns under different terrain,urban form and ambient wind *** objective was to develop a simulation platform that can efficiently predict the distribution of natural ventilation corridor and *** stream network calculated through the simulation is regarded as potential ventilation corridors within the city,and an index calculated from the coverage rate of wind corridors(CRW)is proposed for evaluating the relative *** Nanjing as a case study,8 AF-DEMs based on different wind directions and wind speed conditions are generated,and their corresponding ventilation corridor maps are *** results are in good agreement with the empirical evidence,indicating that the hydrological model,though a rudimentary approximation of the actual airflows,was effective in revealing the natural ventilation corridor and characterize the relative ***,the implementation of this novel method is simple and convenient,and it has great application potential and value in urban design and management.

关键词： urban natural ventilation potential hydrological simulation airflow DEM local climate zone

What is the right way to quench star formation in semi-analytic models of galaxy formation?

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Research in Astronomy and Astrophysics 2017年第2期17卷 7-16页

作者： yu luo Xi Kang Purple Mountain Observatory the Partner Group of MPI für Astronomie Graduate School University of the Chinese Academy of Sciences

Semi-analytic models of galaxy formation are powerful tools to study the evolution of a galaxy population in a cosmological context. However, most models overpredict the number of low- mass galaxies at high redshifts and the colors of model galaxies are not right in the sense that low-mass satellite galaxies are too red and centrals are too blue. The recent version of the L-Galaxies model by Henriques et al. （H15） is a step forward to solve these problems by reproducing the evolution of stellar mass function and the overall fraction of red galaxies. In this paper we compare the two model predictions of L-Galaxies （the other is Guo et al., G13） to SDSS data in detail. We find that in the H15 model the red fraction of central galaxies now agrees with the data due to their implementation of strong AGN feedback, but the stellar mass of centrals in massive halos is now slightly lower than what is indicated by the data. For satellite galaxies, the red fraction of low-mass galaxies （log M./M~ 〈 10） also agrees with the data, but the color of massive satellites （10 〈 logM,/M~ 〈 11） is slightly bluer. The correct color of centrals and the bluer color of massive satellites indicate that quenching in massive satellites is not strong enough. We also find that there are too many red spirals and less bulge-dominated galaxies in both H15 and G13 models. Our results suggest that additional mechanisms, such as more minor mergers or disk instability, are needed to slightly increase the stellar mass of the central galaxy in massive galaxies, mainly in the bulge component, and bulge dominated galaxies will be quenched not only by minor mergers, but also by some other mechanisms.

关键词： galaxies: evolution -- galaxies: formation- galaxies: star formation

Improved delayed detached-eddy simulation of massive separation around triple cylinders

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Acta Mechanica Sinica 2015年第6期31卷 799-816页

作者： Zhi-Xiang Xiao Kun-yu luo School of Aerospace Engineering Tsinghua University

The massively separated flow past triple cylin- ders （TriC） in tandem arrangement is simulated using the improved delayed detached-eddy simulation （IDDES） method based on the shear stress transport （SST） model, coupled with the high order adaptive dissipation scheme. The spacing between adjacent cylinders is sub-critical （1.435D）. IDDES prediction of two cylinders （TC） with the same spacing is compared to experimental data for validation, and the numerical results agree well with the available measurements, except for the asymmetry in the gap region. The flow past TriC is investigated using the same method. Generally, the mean flow quantities past TriC, such as the velocity, pressure, and vorticity, are similar to the corresponding components of TC. However, the pressure fluctuations on the TriC surface are uniformly larger than those on TC. Meanwhile, the instantaneous flows past TriC are much more complex. The periodical blockage in the first gap region is found in the TriC case and leads to the up-and-down movement of shear layer in the second gap region.

关键词： Triple cylinders - Massive separation. IDDES ·Hybrid RANS/LES methods

Performances of a Balanced Hydraulic Motor with Planetary Gear Train

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Chinese Journal of Mechanical Engineering 2012年第4期25卷 760-767页

作者： yu Hongying luo Changjie WANG Huimin School of Mechatronics Engineering Harbin Institute of Technology Harbin 150001 China

The current research of a balanced hydraulic motor focuses on the characteristics of the motor with three planet *** of a balanced hydraulic motor with more than three planet gears are hardly *** order to study the characteristics of a balanced hydraulic motor with planetary gear train that includes more than three planet gears,on the basis of analysis of the structure and working principle of a balanced hydraulic motor with planetary gear train,formulas are deduced for calculating the hydraulic motor＇s primary performance indexes such as displacement,unit volume displacement,flowrate fluctuation ratio,*** of the gears＇ tooth number on displacement and flowrate characteristics are *** order to guarantee the reliability of sealing capability,the necessary conditions that tooth number of the sun gear and the planet gears should satisfy are *** large unit volume displacement and small displacement fluctuation ratio as designing objectives,a balanced hydraulic motor with three planet gears and a common gear motor are designed under the conditions of same displacement,tooth addendum coefficien and clearance *** comparing the unit volume displacement and fluctuation ratio of the two motors,it can be seen that the balanced hydraulic motor with planetary gear train has the advantages of smaller fluctuation ratio and larger unit volume *** results provide theoretical basis for choosing gear tooth-number of this kind of hydraulic motor.

关键词： planetary gear mechanism hydraulic motor tooth number selection

Quantifying quantum non-Markovianity via max-relative entropy

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Chinese Physics B 2019年第4期28卷 56-60页

作者： yu luo Yongming Li College of Computer Science Shaanxi Normal University

We investigate the non-Markovian behavior in open quantum systems from an information-theoretic perspective. Our main tool is the max-relative entropy, which quantifies the maximum probability with which a state ρ can appear in a convex decomposition of a state σ. This operational interpretation provides a new view for the non-Markovian *** also find that max-relative entropy can be the witness and measure of non-Markovian processes. As applications, some examples are also given and compared with other measures in this paper.

关键词： non-Markovian max-relative entropy open systems

Linearly Polarized Polarization-Maintaining Er^(3+)-Doped Fluoride Fiber Laser in the Mid-Infrared

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Journal of Electronic Science and Technology 2022年第1期20卷 1-8页

作者： Hong-yu luo Yong-Zhi Wang State Key Laboratory of Electronic Thin Films and Integrated Devices School of Optoelectronic Science and EngineeringUniversity of Electronic Science and Technology of ChinaChengdu 610054

We demonstrated the~2.8-μm and~3.5-μm linearly polarized continuous wave(CW)laser outputs from a polarization-maintaining(PM)Er^(3+)-doped fluoride fiber *** introducing a film polarizer into the cavity to select the laser polarization orientation,the~2.8-μm linearly polarized CW laser with a high polarization extinction ratio(PER)of~23 dB and maximum output power of 2.37 W was achieved under double-end pumping at 976 *** adding another 1981-nm pump source simultaneously,the~3.5-μm linearly polarized CW laser was also obtained,giving higher PER of~27 dB and maximum output power of 307 mW which is only limited by the available power of 1981-nm *** the best of our knowledge,this is the first report on a mid-infrared linearly polarized CW PM fiber laser in the>2.5-μm mid-infrared *** work not only opens up opportunities for some new mid-infrared applications,but also provides a promising platform for developing high-stability and versatile mid-infrared laser sources.

关键词： Fiber laser linearly polarized mid-infrared polarization-maintaining(PM)

Indian monsoon drove the dispersal of the thoracica group of Scytodes spitting spiders

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Zoological Research 2024年第1期45卷 152-159页

作者： yu-Fa luo Shu-Qiang Li School of Life and Environmental Sciences Shaoxing UniversityShaoxingZhejiang 312000China Key Laboratory of Zoological Systematics and Evolution Institute of ZoologyChinese Academy of SciencesBeijing 100101China Southeast Asia Biodiversity Research Institute Chinese Academy of SciencesYezinNay Pyi Taw 05282Myanmar

We examined the global biogeography of the Scytodes thoracica group of spitting spiders based on 23 years of sampling at the species level(61 species in the thoracica group and 84 species of Scytodes)using DNA data from six *** results indicated that the thoracica group initially dispersed from Southeast Asia to East Africa between 46.5 and 33.0 million years ago,and dispersal events intensified between Southeast/South Asia and East/South Africa from the early to late *** timing of these events indicates that Asian-African faunal exchange of the thoracica group was driven by the Indian monsoon,and the pattern of dispersal suggests that colonialization took root when the Indian monsoon shifted from a North-South direction to an East-West direction from the middle Eocene.

关键词： Geological event Climate change Ballooning organism Faunal exchange Species distribution

A Simple Proof of ACC for Minimal Log Discrepancies for Surfaces

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Acta Mathematica Sinica,English Series 2024年第2期40卷 425-434页

作者： Jing Jun HAN yu Jie luo Shanghai Center for Mathematical Sciences Fudan UniversityJiangwan CampusShanghai 200438P.R.China Department of Mathematics Johns Hopkins UniversityBaltimoreMD 21218USA

Following Shokurov's idea,we give a simple proof of the ACC conjecture for minimal log discrepancies for surfaces.

关键词： Ascending chain condition minimal log discrepancies minimal model program surface