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DESI Legacy Imaging Surveys Data Release 9:Cosmological constraints from galaxy clustering and weak lensing using the minimal bias model

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Science China(Physics,Mechanics & Astronomy) 2023年第12期66卷 230-254页

作者： Haojie Xu hekun Li Jun Zhang Xiaohu Yang Pengjie Zhang min he Yizhou Gu Jian Qin Zhaozhou Li Antonios Katsianis Ji Yao Zhaoyu Wang Yirong Wang Liping Fu Department of Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Particle Astrophysics and Cosmology(MOE)/Shanghai Key Laboratory for Particle Physics and Cosmology Shanghai 200240China Tsung-Dao Lee Institute Shanghai Jiao Tong UniversityShanghai 201210China CAS Key Laboratory of Optical Astronomy National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China Centre for Astrophysics and Planetary Science Racah Institute of PhysicsThe Hebrew UniversityJerusalem 91904Israel Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Shanghai Key Lab for Astrophysics Shanghai Normal UniversityShanghai 200234China

We present a tentative constraint on cosmological parameters Ω_(m) and σ_(8) from a joint analysis of galaxy clustering and galaxygalaxy lensing from DESI Legacy Imaging Surveys Data Release 9(DR9),covering approximately 10000 square degrees and spanning the redshift range of 0.1 to *** study the dependence of cosmological parameters on lens redshift,we divide lens galaxies into seven approximately volume-limited samples,each with an equal width in photometric *** retrieve the intrinsic projected correlation function w_(p)(r_(p))from the lens samples,we employ a novel method to account for redshift ***,we measured the galaxy-galaxy lensing signal ΔΣ(r_(p))for each lens sample,using source galaxies selected from the shear catalog by applying our Fourier Quad pipeline to DR9 *** model these observables within the flatΛCDM framework,employing the minimal bias *** ensure the reliability of the minimal bias model,we apply conservative scale cuts:r_(p)>8 and 12 h^(-1)Mpc,for w_(p)(r_(p))and ΔΣ(r_(p)),*** findings suggest a mild tendency that S_(8)=σ_(8)√Ω_(m)/0.3increases with lens redshift,although this trend is only marginally *** we combine low redshift samples,the value of S8is determined to be 0.84±0.02,consistent with the Planck results but significantly higher than the 3×2 pt analysis by 2-5σ.Despite the fact that further refinements in measurements and modeling could improve the accuracy of our results,the consistency with standard values demonstrates the potential of our method for more precise and accurate cosmology in the future.

关键词： spatial distribution of galaxies statistical and correlative studies of properties observational cosmology

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FCC DeSO_x and DeNO_x additive technology

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Journal of Environmental Sciences 2000年第3期12卷 310-318页

作者： WEN Bin he min-yuan Research Institute of Petroleum Processing SINOPECBeijing 100083China.

The fluid catalytic cracking(FCC) is the principal gasoline producing process in the refinery. Considerable amounts of harmful sulfur oxides and nitrogen oxides (SO x and NO x) are generated with the FCC operation. Impacted by strengthening environmental regulations and the current global emphasis on environmental protection and pollution abatement, refiners have been meaning to look for effective ways to control and reduce SO x and NO x emissions. FCC DeSO x and DeNO x additives is the most promising measure. The present paper reviews the developments in FCC DeSO x and DeNO x additive technology based on the respective authors' works, the future directions of the technology are also discussed.

关键词： FCC DeSO_x SO_x DeSO_x additive DeNO_x additive

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Total Duration of Negative Surplus for a Brownian Motion Risk Model with Interest

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Acta Mathematica Sinica,English Series 2014年第1期30卷 163-168页

作者： Wei WANG Jing min he College of Mathematical Science Tianjin Normal University College of Science Tianjin University of Technology

In this paper,we consider the Brownian motion risk model with *** Laplace transform of the first exit time from the upper barrier before hitting the lower barrier is *** the obtained result and exploiting the limitati... 详细信息

关键词： First exit time confluent hypergeometric function negative surplus ruin probability

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On the Gerber-Shiu Discounted Penalty Function for a Surplus Process Described by PDMPs

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Acta Mathematica Sinica,English Series 2010年第5期26卷 951-962页

作者： Jing min he Rong WU College of Science Tianjin University of Technology Tianjin 300384 P. R. China School of Mathematical Sciences Nankai University Tianjin 300071 P. R. China

In this paper, we investigate the Gerber-Shiu discounted penalty function for the surplus process described by a piecewise deterministic Markov process （PDMP）. We derive an integral equation for the Gerber-Shiu discounted penalty function, and obtain the exact solution when the initial surplus is zero. Dickson formulae are also generalized to the present surplus process.

关键词： Gerber-Shiu discounted penalty function piecewise deterministic Markov process ulti- mate ruin probability Volterra integral equation

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Preparation and Properties of Doped Lanthanum Gallate Film on a Ni/SDC Porous Anode Support

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Chemical Research in Chinese Universities 2006年第5期22卷 643-646页

作者： he Qiang he Tian-min PEI Li JI Yuan College of Physics Jilin University Changchun 130023 P. R. China

A 65. 8-μm dense doped lanthanum gallate La0.8Sr0.2 Ga0.85 Mg0.15 O2.825（LSGM）film was prepared on a porous Ni/SDC（samarium doped ceria, Ce0.8Sm0.2O1.9 ） anode support by colloid susponsion deposition with incomplete crystallization LSGM powder as a starting material. The phase composition and micromorphology of the LSGM film were characterized by X-ray diffraction and scanning electron microscopy. The electrical properties of the LSGM film and the performances of the LSGM film solid oxide fuel cell were also analyzed. The results show that beth the dense LSGM film on the porous anode support, and the required phase composition of the LSGM film were obtained simultaneously by sintering at 1400 ℃ for 6 h. The adhesion between the LSGM film and the porous anode support is very strong. The electrical conductivities of the LSGM film on the porous anode support are 0. 113 and 0. 173 S/cm at 800 and 850℃, respectively. The maximum output power density of the LSGM film cell is 177 mW/cm^2 at 700℃.

关键词： Doped lanthanum gallate Film Electrical property Solid oxide fuel cell Anode support

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The constitutions of terpenoids and hormones of leaves in red-flesh citrus mutants and their wild types

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Horticultural Plant Journal 2022年第3期8卷 297-310页

作者： Cuihua Liu min he Juan Xu College of Horticulture Northwest A&F UniversityYangling 712100ShaanxiChina Key Laboratory of Horticultural Plant Biology(ministry of Education) College of Horticulture and ForestryHuazhong Agricultural UniversityWuhan 430070China

To study the profiles and relationships of terpenoids and phytohormones in leaves of red-flesh citrus,we examined four red-flesh mutants that accumulate lycopene in the fruit and their corresponding wild *** compared their contents of monoterpenoid and sesquiterpenoid volatiles,triterpenoid limonoid aglycones,and tetraterpenoid *** types and concentrations of these terpenoids in the leaves varied among genotypes,and the leaf terpenoid profiles differed between red-fleshmutants and theirwild ***,lycopenewas not detected in citrus leaves of all eight varieties,including the *** to phytohormone accumulation in the leaves,the citrus varieties could be classified into a low-phytohormone group(‘Red Anliu’sweet orange,‘Anliu’sweet orange,and‘Cara Cara’navel orange),a high-phytohormone group(‘Seike’navel orange),and a high-jasmonic acid group(‘Red-flesh Guanxi’pummelo,‘Guanxi’pummelo,‘Chuhong’pummelo,and‘Feicui’pummelo).The contents of terpenoid volatiles were very low in leaves of‘Red-flesh Guanxi’and‘Guanxi’pummelo;therefore,they are ideal materials for verifying the functions of genes related to terpenoid volatiles in overexpression *** volatiles were positively correlated with phytohormones of abscisic acid,jasmonic acid,and salicylic *** together,lycopene was undetected in the leaves of redflesh citrus mutants with abundant lycopene in their juice sacs,which suggested a tissue-specific accumulation pattern of lycopene in citrus red-flesh ***,leaf volatile profiles could be suitable to develop fingerprint chromatograms of citrus resources,since leaf volatile profiles were dominated by several compounds that varied among genotypes in their combinations and concentrations.

关键词： Citrus Carotenoid Terpenoid volatile Limonoid aglycone Hormone Leaf

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Integration of InSAR and GPS for hydraulic engineering

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Science China(Technological Sciences) 2007年第Z1期50卷 111-124页

作者： he XiuFeng LUO HaiBin HUANG QiHuan he min Institute of Satellite Navigation & Spatial Information System Hohai UniversityNanjing 210098China Institute of Satellite Navigation & Spatial Information SystemHohai UniversityNanjing 210098China Institute of Satellite Navigation & Spatial Information SystemHohai UniversityNanjing 210098China Institute of Satellite Navigation & Spatial Information SystemHohai UniversityNanjing 210098China

Interferometric synthetic aperture radar (InSAR) is a potential earth observation approach, and it has been demonstrated to have a variety of applications in measuring ground movement, urban subsidence and landslides. Currently InSAR provides the ability to map accurate DEM and measure ground deformation to sub-centimeter accuracy. However, many factors affect InSAR to measure ground movement since dam constructions are built in a large scale area with a complicated climate and unstable geology. This paper discusses potential applications of integrated InSAR and GPS to monitor a large-scale ground movement due to hydropower developments. The integration of InSAR and GPS can provide a cost-effective means for monitoring deformation of hydropower developments. Moreover, two novel methods, both the improved spatial interpolating method and estimation of 3D surface motion velocities method, are proposed and the experimental results and analysis are given in this paper.

关键词： InSAR GPS hydraulic and hydropower engineering slides monitoring

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Responses of Alpine Wetlands to Climate Changes on the Qinghai-Tibetan Plateau Based on Remote Sensing

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Chinese Geographical Science 2020年第2期30卷 189-201页

作者： WANG Rui he min NIU Zhenguo State Key Laboratory of Remote Sensing Science Aerospace Information Research InstituteChinese Academy of SciencesBeijing 100101China School of Electronic Electrical and Communication EngineeringUniversity of Chinese Academy of SciencesBeijing 100049China

The alpine wetlands in QTP(Qinghai-Tibetan Plateau)have been profoundly impacted along with global climate *** employ satellite datasets and climate data to explore the relationships between alpine wetlands and climate changes based on remote sensing *** show that:1)the wetland NDVI(Normalized Difference Vegetation Index)and GPP(Gross Primary Production)were more sensitive to air temperature than to precipitation *** wetland ET(evapotranspiration)across alpine wetlands was greatly correlated with precipitation rate.2)Alpine wetlands responses to climate changes varied spatially and temporally due to different geographic environments,variety of wetland formation and human disturbances.3)The vegetation responses of the Zoige wetland was the most noticeable and related to the temperature,while the GPP and NDVI of the Qiangtang Plateau and Gyaring-Ngoring Lake were significantly correlated with both temperature and precipitation.4)ET in the Zoige wetland showed a significantly positive trend,while ET in Maidika wetland and the Qiangtang plateau showed a negative trend,implying wetland degradation in those two wetland *** complexities of the impacts of climate changes on alpine wetlands indicate the necessity of further study to understand and conserve alpine wetland ecosystems.

关键词： Qinghai-Tibetan Plateau(QTP) alpine wetlands climate change Moderate-resolution Imaging Spectroradiometer(MODIS) remote sensing

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Modification of the spectra of correlated charm-anticharm quark pairs in the quark-gluon plasma

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Chinese Physics C 2020年第5期44卷 56-62页

作者： Ismat Ullah min he Department of Applied Physics Nanjing University of Science and TechnologyNanjing 210094China

heavy quarks play an important role in probing the properties of strongly interacting quark-gluon plasma(QGP)created in ultra-relativistic heavy-ion *** study the interactions of single heavy(charm)quarks and correlated charm and anticharm(ccˉ)quark pairs with the medium constituents of QGP by performing fireball+Langevin simulations of the pertinent Brownian motion with elastic *** studying the traditional observables,the nuclear modification factor and the elliptic flow of single heavy quarks in QGP for different thermal relaxation rates,we also study the broadening of the azimuthal correlations of charm and anticharm quark pairs in the QGP medium for different relaxation rates and transverse momenta *** quantified the smearing of ccˉpair azimuthal correlations with an increasing thermal relaxation rate:while the(nearly)back-to-back correlations among ccˉpairs are almost completely washed out at low transverse momentum(pT),these correlations at high pT largely survive the pair *** provides a novel observable for diagnosing the properties of QGP.

关键词： quark-gluon plasma heavy quarks Brownian motion Langevin simulation

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Global Stability of a Time-delayed Malaria Model with Standard Incidence Rate

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Acta Mathematicae Applicatae Sinica 2023年第2期39卷 211-221页

作者： Song-bai GUO min he Jing-an CUI School of Science Beijing University of Civil Engineering and ArchitectureBeijing 102616China Academy of Mathematics and Systems Science Chinese Academy of SciencesBeijing 100190China

A four-dimensional delay differential equations(DDEs)model of malaria with standard incidence rate is *** utilizing the limiting system of the model and Lyapunov direct method,the global stability of equilibria of the model is obtained with respect to the basic reproduction number R_(0).Specifically,it shows that the disease-free equilibrium E^(0)is globally asymptotically stable(GAS)for R_(0)he endemic equilibrium E^(*)is GAS and E^(0)is unstable for R_(0)>***,to obtain the global stability of the equilibrium E^(*)for R_(0)>1,the weak persistence of the model is proved by some analysis techniques.

关键词： malaria model delay differential equations Lyapunov functional weak persistence global stability

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