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Multi-scenario Simulation and Spatial-temporal Analysis of LUCC in China's Coastal Zone Based on Coupled SD-FLUS Model

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Chinese Geographical Science 2024年第4期34卷 579-598页

作者： HOU Xiyong SONG Baiyuan zhang xueying WANG Xiaoli LI Dong Yantai Institute of Coastal Zone Research Chinese Academy of SciencesYantai 264003China Shandong Key Laboratory of Coastal Environmental Processes Yantai 264003China CAS Key Laboratory of Coastal Environmental Processes and Ecological Remediation Yantai Institute of Coastal Zone ResearchChinese Academy of SciencesYantai 264003China Shanghai Fuxiong Environmental Technology Corporation Shanghai 200433China

Increased human activities in China's coastal zone have resulted in the depletion of ecological land ***,conducting current and future multi-scenario simulation research on land use and land cover change(LUCC)is crucial for guiding the healthy and sustainable development of coastal *** dynamic(SD)-future land use simulation(FLUS)model,a coupled simulation model,was developed to analyze land use dynamics in China's coastal *** model encompasses five scenarios,namely,SSP1-RCP2.6(A),SSP2-RCP4.5(B),SSP3-RCP4.5(C),SSP4-RCP4.5(D),and SSP5-RCP8.5(E).The SD model simulates land use demand on an annual basis up to the year ***,the FLUS model determines the spatial distribution of land use for the near term(2035),medium term(2050),and long term(2100).Results reveal a slowing trend in land use changes in China's coastal zone from 2000–*** these changes,the expansion rate of construction land was the highest and exhibited an annual *** 2100,land use predictions exhibit high accuracy,and notable differences are observed in trends across *** summary,the expansion of production,living,and ecological spaces toward the sea remains *** A emphasizes reduced land resource dependence,benefiting ecological land *** B witnesses an intensified expansion of artificial *** C sees substantial land needs for living and production,while Scenario D shows coastal forest and grassland ***,in Scenario E,the conflict between humans and land *** study presents pertinent recommendations for the future development,utilization,and management of coastal areas in *** research contributes valuable scientific support for informed,long-term strategic decision making within coastal regions.

关键词： land use and land cover change(LUCC) multi-scenario simulation system dynamic-future land use simulation(SD-FLUS)model SSP-RCP scenarios model coupling China's coastal zone

A Contact SPH Method with High-Order Limiters for Simulation of Inviscid Compressible Flows

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Communications in Computational Physics 2013年第7期14卷 425-442页

作者： xueying zhang Haiyan Tian Leihsin Kuo Wen Chen College of Science Hohai UniversityNanjingJiangsu 210098P.R.China Department of Mathematics University of Southern MississippiHattiesburgMS 39406USA Department of Engineering Mechanics Hohai UniversityNanjingJiangsu 210098P.R.China

In this paper,we study a class of contact smoothed particle hydrodynamics(SPH)by introducing Riemann solvers and using high-order *** particular,a promising concept ofWENO interpolation as limiter is presented in the reconstruction *** physical values relating interactional particles used as the initial values of the Riemann problemcan be reconstructed by the Taylor series *** contact solvers of the Riemann problem at contact points are incorporated in SPH *** order to keep the fluid density at the wall rows to be consistent with that of the inner fluid wall boundaries,several lines of dummy particles are placed outside of the solid walls,which are assigned according to the initial *** last,the method is applied to compressible flows with sharp discontinuities such as the collision of two strong shocks and the interaction of two blast waves and so *** numerical results indicate that the method is capable of handling sharp discontinuity and efficiently reducing unphysical oscillations.

关键词： Meshless method SPH method the Riemann solution high-order limiter Taylor series

Effects of short photoperiod on energy intake,thermogenesis,and reproduction in desert hamsters(Phodopus roborovskii)

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Integrative Zoology 2015年第2期10卷 207-215页

作者： xueying zhang Zhijun ZHAO Nina VASILIEVA Anastasia KHRUSHCHOVA Dehua WANG State Key Laboratory of Integrated Management for Pest Insects and Rodents Institute of ZoologyChinese Academy of SciencesBeijingChina A.N.Severtsov Institute of Ecology and Evolution Russian Academy of SciencesMoscowRussia College of Life and Environmental Science Wenzhou UniversityWenzhouChina

Desert hamsters(Phodopus roborovskii)are the least known species in the genus Phodopus with respect to ecology and physiology,and deserve scientific attention,particularly because of their small body ***,the responses of energy metabolism and reproductive function to short photoperiods in desert hamsters were *** and female desert hamsters were acclimated to either long day(LD)(L:D 16:8 h)or short day(SD)photoperiods(L:D 8:16 h)for three months,and then the females were transferred back to an LD photoperiod for a further five months,while at the end of the SD acclimation the males were killed and measurements were taken for serum leptin as well as molecular markers for *** found that like the other two species from the genus Phodopus,the desert hamsters under SD decreased body mass,increased adaptive thermogenesis as indicated by elevated mitochondrial protein content and uncoupling protein-1 content in brown adipose tissue,and suppressed reproduction compared to those under ***,different from the other two species,desert hamsters did not show any differences in energy intake or serum leptin concentration between LD and *** data suggest that different species from the same genus respond in different ways to the environmental signals,and the desert adapted species are not as sensitive to change in photoperiod as the other two species.

关键词： desert hamster(Phodopus roborovskii) energy intake leptin reproductive function uncoupling protein-1

Perpendicular magnetic anisotropy based spintronics devices in Pt/Co stacks under different hard and flexible substrates

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Science China(Information Sciences) 2023年第2期66卷 256-266页

作者： Sylvain EIMER Houyi CHENG Jinji LI xueying zhang Chao ZHAO Weisheng ZHAO Hefei Innovation Research Institute Anhui High Reliability Chips Engineering LaboratoryBeihang University Fert Beijing Institute MIIT Key Laboratory of Spintronics School of Integrated Circuit Science and EngineeringBeihang University School of Physics and Quantum Information Research Center Southeast University Truth Instruments Co.Ltd. Beihang-Geortek Joint Microelectronics Institute Qingdao Research InstituteBeihang University Beijing Superstring Academy of Memory Technology

The magnetic properties in substrate/Pt/Co multilayers, such as perpendicular magnetic anisotropy(PMA), are of particular interest for spintronic devices. In particular, it is important to obtain a strong PMA on the flexible substrate in the field of wearable devices and structural health ***, the different stacks deposition and regulation conditions on the magnetic properties of the films lack systematic research. Here, we investigate the magnetic properties in Pt/Co structures with different hard and flexible substrates, layer thicknesses, and the different deposition temperatures of the buffer *** found that the coercive field and magnetodynamic behavior of the films change with these factors. Moreover, depositing the buffer layer under high temperature can effectively adjust the crystalline state of the films, thus affecting the performance of the films. After depositing the buffer layer at 800℃, our films can obtain a better crystalline state and PMA. The measurement results of the magneto-optical Kerr microscope show that the magnetic domain wall motion of the films can be controlled by different substrate and buffer layer conditions. It was expected that ultra-fast magnetic moment switching can be achieved by optimizing the conditions to reduce the power consumption of the device. The experimental results also show that the optimized film conditions can also obtain strong PMA on the flexible substrate. These findings help to understand magnetic properties in these structures and show the promising prospect for wearable devices and other spintronic devices.

关键词： Pt/Co stacks perpendicular magnetic anisotropy magnetodynamic behavior spintronics flexible devices high temperature deposition

Identification of a Putative Tetrasporophyte-Specific Gene in Gracilaria lemaneiformis(Gracilariales,Rhodophyte)

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Journal of Ocean University of China 2008年第3期7卷 299-303页

作者： REN xueying zhang Xuecheng College of Marine Life Sciences Ocean University of China Qingdao 266003 P. R. China

A putative tetrasporophyte-specific gene,designated as SSH466(GenBank accession No. DQ019223) ,was one of the genes identified in this work using suppression subtractive hybridization(SSH) method in Gracilaria lemaneiformis. The full length of the gene was obtained using SMART RACE strategy. Sequence analysis revealed that the gene had 1 019 nucleotides,including an open reading frame of 498 nucleotides encoding 166 amino acid residues,158 nucleotides of 5' untranslated region and 363 nucleotides of 3' non-coding region. Protein motif and secondary structure prediction showed that there existed a transmembrane domain with a unique β-sheet. Thus,SSH466 protein might be a cross-membrane protein. Sequence homology search in the public GenBank databases did not reveal any significant match with SSH466. Virtual Northern blot analysis confirmed that it was a tetrasporophyte-specific gene.

关键词： suppression subtractive hybridization (SSH) tetrasporophyte female gametophyte Virtual Northern blot

Fecal microbiota transplantation: standardization or diversification?

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Science China(Life Sciences) 2019年第12期62卷 1714-1716页

作者： xueying zhang Hongliang Tian Qiyi Chen Huanlong Qin Ning Li Intestinal Microenvironment Treatment Center Shanghai Tenth People’s Hospital Tongji University School of Medicine

Call for standardization of fecal microbiota transplantation(FMT)The gut microbiota plays an important role in human health and *** is often recognized in patients with diseases of the digestive and other systems(Blaser,2019;Li et al.,2018b;Qin et al.,2018).FMT refers to the administration of fecal material containing distal gut microbiota from a healthy person(donor)to a patient(recipient)to restore the gut microecology of the recipient(Kelly et al.,2015).Clinical guidelines have strongly recommended FMT for the treatment of relapsed or refractory Clostridium difficile infection(CDI)(Mullish et al.,2018).FMT has also shown potential clinical benefits in many other diseases related to dysbiosis,including inflammatory bowel disease(IBD),irritable bowel syndrome(IBS),functional constipation(FC),liver diseases,metabolic syndrome,autism,and cancer(Huang et al.,2018;Li et al.,2018a;zhang et al.,2018).Because of its broad curative potential,FMT has become a topic of great *** than 3,000 published articles have reported treatment of different diseases with FMT,and over 380 FMT trials have been registered on the *** website.

关键词： donor standardization registered

Geometric Mean Maximum FSVMI Model and Its Application in Carotid Artery Stenosis Risk Prediction

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Chinese Journal of Electronics 2021年第5期30卷 824-832页

作者： zhang xueying GUO Yuling LI Fenglian WEI Xin HU Fengyun HUI Haisheng JIA Wenhui College of Information and Computer Taiyuan University of Technology Department of Neurology Shanxi Province People's Hospital

Carotid artery stenosis is a serious medical condition that can lead to stroke. Using machine learning method to construct classifier model, carotid artery stenosis can be diagnosed with transcranial doppler data. We propose an improved fuzzy support vector machine model to predict carotid artery stenosis, with the maximum geometric mean as the optimization *** fuzzy membership function is obtained by combining information entropy with the normalized class-center distance. Experimental results showed that the proposed model was superior to the benchmark models in sensitivity and geometric mean criteria.

关键词： blood vessels machine learning method fuzzy set theory improved fuzzy support vector machine model pattern classification geometric mean maximum FSVMI model maximum geometric mean classifier model support vector machines carotid artery stenosis risk prediction geometric mean criteria learning (artificial intelligence) entropy

Removal of fluoride from water using titanium-based adsorbents

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Frontiers of Environmental Science & Engineering 2010年第4期4卷 414-420页

作者： Zhijian LI Shubo DENG xueying zhang Wei ZHOU Jun HUANG Gang YU Department of Environmental Science and Engineering POPs Research CenterTsinghua UniversityBeijing 100084China

Three adsorbents including TiO_(2),Ti-Ce,and Ti-La hybrid oxides were prepared to remove fluoride from aqueous *** Ti-Ce and Ti-La hybrid adsorbents obtained by the hydrolysis-precipitation method had much higher sorption capacity for fluoride than the TiO_(2) adsorbent prepared through *** earth(Ce and La)oxides and TiO_(2) exhibited a synergistic effect in the hybrid adsorbents for fluoride *** sorption equilibrium of fluoride on the three adsorbents was achieved within 4 h,and the pseudo-second-order model described the sorption kinetics *** sorption isotherms fitted the Langmuir model well,and the adsorption capacities of fluoride on the Ti-Ce and Ti-La adsorbents were about 9.6 and 15.1 mg·g^(-1),respectively,at the equilibrium fluoride concentration of 1.0 mg·L^(-1),much higher than the 1.7 mg·g^(-1) on the TiO_(2).The sorption capacities of fluoride on the three adsorbents decreased significantly when the solution pH increased from 3 to *** electrostatic interaction played an important role in fluoride removal by the three adsorbents,and Fourier transform infrared(FTIR)analysis indicated that the hydroxyl groups on the adsorbent surface were involved in fluoride adsorption.

关键词： fluoride adsorption titanium dioxide titanium-based adsorbent sorption mechanism

A New Method of Designing Waveform Codebook

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通信学报 1998年第5期19卷 93-96页

作者： zhang xueying zhang Gang (TaiYuan University of Technology, TaiYuan 030024) 太原工业大学山西太原

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