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GAPIT Version 3: Boosting Power and Accuracy for Genomic Association and Prediction

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Genomics, Proteomics & Bioinformatics 2021年第4期19卷 629-640页

作者： Jiabo Wang Zhiwu zhang Key Laboratory of Qinghai-Tibetan Plateau Animal Genetic Resource Reservation and Utilization Sichuan Province and Ministry of EducationSouthwest Minzu UniversityChengdu 610041China Department of Crop and Soil Sciences Washington State UniversityPullmanWA 99164USA

Genome-wide association study(GWAS)and genomic prediction/selection(GP/GS)are the two essential enterprises in genomic *** to the great magnitude and complexity of genomic and phenotypic data,analytical methods and their associated software packages are frequently *** is a widely-used genomic association and prediction integrated tool as an R *** first version was released to the public in 2012 with the implementation of the general linear model(GLM),mixed linear model(MLM),compressed MLM(CMLM),and genomic best linear unbiased prediction(g BLUP).The second version was released in 2016 with several new implementations,including enriched CMLM(ECMLM)and settlement of MLMs under progressively exclusive relationship(SUPER).All the GWAS methods are based on the single-locus *** the first time,in the current release of GAPIT,version 3 implemented three multi-locus test methods,including multiple loci mixed model(MLMM),fixed and random model circulating probability unification(Farm CPU),and Bayesian-information and linkage-disequilibrium iteratively nested keyway(BLINK).Additionally,two GP/GS methods were implemented based on CMLM(named compressed BLUP;c BLUP)and SUPER(named SUPER BLUP;s BLUP).These new implementations not only boost statistical power for GWAS and prediction accuracy for GP/GS,but also improve computing speed and increase the capacity to analyze big genomic ***,we document the current upgrade of GAPIT by describing the selection of the recently developed methods,their implementations,and potential *** documents,including source code,user manual,demo data,and tutorials,are freely available at the GAPIT website(http://***/GAPIT).

关键词： GWAS Genomic selection Software R GAPIT

Towards a bisimulation theory for open synchronized networks of automata

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Science China(Information Sciences) 2016年第5期59卷 21-23页

作者： Eric MADELAINE Min zhang INRIA 2004 rte des Lucioles Shanghai Key Laboratory of Trustworthy Computing MOE IntalJoint Laboratory of Trustworthy SoftwareECNU

Dear editor,Open parameterised Networks of synchronized automata(p Nets)are new semantic objects that we propose for defining the semantics of simple or complex composition operators for distributed *** p Nets have an operational semantics,using open transitions that include symbolic hypotheses on the behavior of the p Nets"holes".We discuss when this semantics can be finite and how to compute it *** define bisimulation equivalences between open p Nets,and we explore under which hypotheses these equivalences are compatible with composition and are decidable.

关键词： Towards a bisimulation theory for open synchronized networks of automata

Dynamic alliance target tracking based on genetic algorithms in wireless sensor networks

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China Communications 2007年第4期4卷 55-60页

作者： zhang Shi zhang Zhe Zhu Jichang NE Univ Inst Elect Informat Engn Shenyang 110004 Peoples R China

Dynamic alliance(DA),namely,virtual corporations (VCs),is an enterprise management method. It means a temporary union formed by some independent commercial processes or ***, genetic algorithms(GA) is applied to the research of nodes DA selection optimization in wireless sensor networks(WSN) target tracking(TT) *** detailed optimized selection method is presented in the paper and a typical simulation is conducted to verify the effectiveness of our model.

关键词： dynamic alliance wireless sensor networks genetic algorithms target tracking

Investigation on steelmaking dust recycling and iron oxide red preparing

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Journal of University of Science and Technology Beijing 2008年第1期15卷 24-28页

作者： Pingfeng Fu Qiang zhang College of Arts ＆ Science Beijing Union University Beijing 100083 China School of Civil and Environmental Engineering University of Science and Technology Beijing Beijing 100083 China

To investigate the physical and chemical properties of the steelmaking dust, wet sieve separation, XRD, SEM, EDS, and traditional chemical analysis were carded out to obtain the particle size distribution, mineralogy, morphology, and the chemical composition of the dust. The dust with a total Fe content of 64.08wt% has coarse metallic iron, magnetite and hematite grains, while free clay minerals with a size of 〈38 μm are mainly iosidefite, calcium silicate, and calcite, which are conglomerated to each other. By following the procedures of wet magnetic separation, acid leaching, and oxidization calcination, magnetic materials were recycled and further prepared as iron oxide red with a productivity of 0.54 ton per unit ton of the dust. Middle iron concentrate with an Fe content of 65.92wt% can be reused as feeding material in the ironmaking industry. Additionally, washed water from acid leaching with an Fe^3＋ ion content of less than 5 g·L^-1 was recovered as feeding water in the wet magnetic separation procedure. 2008 University of Science and Technology Beijing. All fights reserved.

关键词： steelmaking dust iron oxide red wet magnetic separation acid leaching

Fluidization: An Important Process in the Formation of the Qiyugou Au-bearing Breccia Pipes in Central China

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Acta Geologica Sinica(English Edition) 2007年第2期81卷 226-238页

作者： zhang Yuanhou zhang Shihong Franco PIRAJNO College of Earth Sciences Jilin University Changchun Jilin 130061 China State Key Laboratory of Geological Processes and Mineral Resources China University of Geosciences Beijing 100083 China Geological Survey of Western Australia 100 Plain Street Perth WA6004 Australia

Fluidization processes based on experiments are reviewed to gain some useful insights and comparisons with those that occur in hydrothermal systems. Field and petrographic work, and microscope observation were carried out on samples from the Qiyugou Au-bearing breccia pipes from the East Qinling region, Henan Province. Evidence from macro- and micro-textures suggests that the style of breccias in the Qiyugou area can be grouped into three types：（1） jigsaw fit-stockwork texture, in which the interval between clasts is marked by fractures or filled with calcite or quartz veins; （2） larger breccias that are supported by smaller breccias, rock flour and alteration materials; in this type clasts moved over short distances, creating open spaces; （3） fluidized texture, where the clasts of different lithologies have rounded shapes. These observations are compared with those resulting from experiments on fluidization processes. The results of this comparison suggest that fluidization is an important geological process in the formation of the Qiyugou Au-bearing breccia pipes and gold mineralization. In addition, fluidization processes such as expansion, bubbling, slugging, channeling and spouting must have contributed to the formation of the pipes and were conducive to the development of gold mineralization. In the Qiyugou breccia pipes, gold mineralization occurs as disseminations, in stockwork veins, and open space infills. The ore zones form subparallel sheets that are nearly perpendicular to the walls of the pipes.

关键词： fluidization breccia pipe gold mineralization Qiyugou Cretaceous Henan Qinling China

Interspecific competition effects on phosphorus accumulation by Hydrilla verticillata and Vallisneria natans

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Journal of Environmental Sciences 2011年第8期23卷 1274-1278页

作者： Xiufeng zhang Zhengwen Liu Institute of Hydrobiology of Jinan University Guangzhou 510632 China. State Key Laboratory of Lake Science and Environment Nanjing Institute of Geography and LimnologyChinese Academy of Sciences Nanjing 210008 China

The competition between submersed plants has been recognized as an important factor influencing the structure of plant communities in shallow lakes. The ability of different species to take up and store nutrients from the surrounding ambience varies, and hence plant community structure might be expected to affect the cycling of nutrients in lake ecosystems. In this study, the uptake of phosphorus by Hydrilla verticillata and Vallisneria natans was studied and compared in monoculture and competitive mixed-culture plantings. Results showed that for both studied species the phosphorus concentrations of different tissues and of whole plants was unaffected by competition. However, the quantity of phosphorus accumulated by whole plants of 1-1. verticillata was significantly higher in mixture culture than in monoculture, while that of V. natans was lower in the mixed culture. The results indicated that 11. verticillata has a competitive advantage over V. natans, when the two species are grown in competition, and is able to accumulate a greater quantity of phosphorus.

关键词： interspecific competition submersed plants phosphorus storage

Optimal design of self-propagating high temperature one-dimensional nano-SnO_2 synthesis

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Acta Metallurgica Sinica(English Letters) 2011年第4期24卷 321-325页

作者： Nian LIU Guodonq zhang Department of Materials Engineering and Center for Electron Microscopy Wuhan UniversityWuhan 430072 China

The success in synthesizing high purity SnO2 nanobelts via self-propagating high tem- perature synthesis was achieved. According to the experimental results, a relationship between the residual heat of the reaction system at 2848 K and SnO2 nanobelts yield was identified. The most appropriate formula for this self-propagating high tempera- ture synthesis method is turned out to be composed of Sn powder and thermite with weight ratio of 1：1.

关键词： Optimal design Self-propagating high temperature synthesis Nano-Sn02

Preparation and gas sensing performances of palladium surface-modified flower-like SnO_2 nanopowders

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Particuology 2013年第6期11卷 743-747页

作者： Wanli Jiao Lei zhang School of Material Science and Engineering Shandong University of Technology

Flower-like SnO2 nanopowders prepared by a hydrothermal method were surface modified with palla- dium via impregnation. The crystal structure, morphology, and surface chemistry states of the samples were characterized by means of X-ray diffraction （XRD）, scanning electron microscopy （SEM）, and X-ray photoelectron spectroscopy （XPS）, respectively. The gas sensing performances were also investigated. For a hydrothermal temperature of 220 ℃, flower-like SnO2 nanoparticles consist of nanorods with diameters of 40 nm and lengths of 100 nm. The XPS and XRD results reveal that palladium exists in the Pd0 chemical state but the crystal is too small to be detected. The 0.3 wt% Pd modified SnO2 sensor shows better sensi- tivity, up to 21, for 70 μL/L ethanol gas at an optimal working temperature of 250 ℃. The quick response time （3 s） and fast recovery time （-20 s） are the main characteristics of this sensor.

关键词： SnO2 nanopowders Flower-like structure Hydrothermal method Impregnation Palladium Gas sensing

An overview of non-noble metal electrocatalysts and their associated air cathodes for Mg-air batteries

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Materials Reports(Energy) 2021年第1期1卷 88-100页

作者： Lei zhang Qinsi Shao Jiujun zhang Institute for Sustainable Energy College of SciencesShanghai UniversityShanghai200444China Energy Mining&EnvironmentNational Research Council of CanadaVancouverV6T 1W5Canada

Although metal-air batteries(MABs)including Mg-air batteries possess high theoretical energy densities and are promising in energy storage systems,the poor performances and high cost of corresponding electrocatalysts and air cathodes significantly limit practical *** on this,the present review gives a summary of the recent progress in the development of cost effective non-noble metal electrocatalysts and their associated air cathodes for MABs,with a particular focus on Mg-air batteries including the aspects of corresponding catalyst synthesis and characterization,catalyzed oxygen reduction reaction(ORR)mechanism,air cathode fabrication and performance *** paper also provides an analysis on the issues that challenge the development of advanced electrocatalysts and the associated air cathodes for Mg-air batteries,as well as a discussion of potential research directions that may help resolve these issues and facilitate the practical application of Mg-air batteries.

关键词： Metal-air battery Magnesium-air battery Primary battery Electrocatalyst Cathode Oxygen reduction Electrolyte