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22篇 您的检索式:作者名="SUN Shufeng"
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1Age and genesis of the Myanmar jadeite:Constraints from U-Pb ages and Hf isotopes of zircon inclusions显示文摘Myanmar jadeite (jadeitite) is well known for its economical value and distinctive tectonic locality within the collisional belt between India and Eurasian plates. However, it is less studied for its genesis and geodynamic implications due to precipitous topography, adverse weather and local military conflicts in the area. By means of combined ICP-MS and LA-MC-ICPMS techniques, we have carried out in-situ trace elements, U-Pb and Lu-Hf isotopes for zircon inclusions in a piece of jadeite gem sample. CL imaging suggests that the zircons are metasomatic in origin, and contain mineral inclusions of jadeite and omphacite. Seventy-five analyses on 16 grains of the zircons yield a U-Pb age of 158 ± 2 Ma. The Myanmar zircons differ from other types in that they have no significant Eu anomalies despite high HREE concentrations. Measured 176Hf/177Hf ratios range from 0.282976 to 0.283122, with an average value of 0.283066 ± 7; εHf(t) value of 13.8 ± 0.3 (n=75). These results indicate that the Myanmar jadeite was formed in the Late Jurassic, probably by interaction of fluid released from subducted oceanic slab with mantle wedge. Therefore, its formation has no genetic relationship to the continental collision between Indian and Euroasian plates.QIU ZhiLi WU FuYuan YANG ShuFeng ZHU Min SUN JinFeng YANG Ping 2009Chinese Science Bulletin2009,54,4:9
2Coastal blue carbon: Concept, study method, and the application to ecological restoration显示文摘Coastal blue carbon refers to the carbon taken from atmospheric CO2; fixed by advanced plants(including salt marsh,mangrove, and seagrass), phytoplankton, macroalgae, and marine calcifiers via the interaction of plants and microbes; and stored in nearshore sediments and soils; as well as the carbon transported from the coast to the ocean and ocean floor. The carbon sequestration capacity per unit area of coastal blue carbon is far greater than that of the terrestrial carbon pool. The mechanisms and controls of the carbon sink from salt marshes, mangroves, seagrasses, the aquaculture of shellfish and macroalgae, and the microbial carbon pump need to be further studied. The methods to quantify coastal blue carbon include carbon flux measurements, carbon pool measurements, manipulative experiments, and modeling. Restoring, conserving, and enhancing blue carbon will increase carbon sinks and produce carbon credits, which could be traded on the carbon market. The need to tackle climate change and implement China's commitment to cut carbon emissions requires us to improve studies on coastal blue carbon science and policy. The knowledge learned from coastal blue carbon improves the conservation and restoration of salt marshes,mangroves, and seagrasses; enhances the function of the microbial carbon pump; and promotes sustainable aquaculture, such as ocean ranching.Jianwu TANG Shufeng YE Xuechu CHEN Hualei YANG Xiaohong SUN Faming WANG Quan WEN Shaobo CHEN 2018Science China Earth Sciences2018,61,6:8
3Modern power systems control centers:From EMS to AEMS显示文摘Traditional energy management system (EMS) plays an indispensable role in control centers of electric power systems. However, it also has several shortcomings, including lack of real-time closed-loop control, unreliable functional modules, and difficult to exchange data. The electric hybrid control theory (EHCT) has been proposed as an innovative and effective means to overcome these shortcomings. This paper argues that the EHCT provides a theoretical foundation for the advanced energy management system (AEMS) that can achieve multi-objective, near-optimal, and closed-loop control of electric power grids. This paper also discusses the significance for control centers to evolve from the traditional EMS to the AEMS. Furthermore, this paper points out that the traditional EMS can be considered as an integral part of the AEMS and that the AEMS can be built upon the traditional EMS. Thus, the resources that are currently available can be fully utilized to achieve near-optimal and closed-loop control of power system operations.HE GuangYu SUN YingYun RUAN QianTu WANG Wei DONG ShuFeng 2009Science China(Technological Sciences)2009,52,2:5
4Genome-wide identification of agronomically important genes in outcrossing crops using OutcrossSeq显示文摘Many important crops(e.g.,tuber,root,and tree crops)are cross-pollinating.For these crops,no inbred lines are available for genetic study and breeding because they are self-incompatible,clonally propagated,or have a long generation time,making the identification of agronomically important genes difficult,particularly in crops with a complex autopolyploid genome.In this study,we developed a method,OutcrossSeq,for mapping agronomically important loci in outcrossing crops based on whole-genome low-coverage resequencing of a large genetic population,and designed three computation algorithms in OutcrossSeq for different types of outcrossing populations.We applied OutcrossSeq to a tuberous root crop(sweet potato,autopolyploid),a tree crop(walnut tree,highly heterozygous diploid),and hybrid crops(double-cross populations)to generate high-density genotype maps for the outcrossing populations,which enable precise identification of genomic loci underlying important agronomic traits.Candidate causative genes at these loci were detected based on functional clues.Taken together,our results indicate that OutcrossSeq is a robust and powerful method for identifying agronomically important genes in heterozygous species,including polyploids,in a cost-efficient way.The OutcrossSeq software and its instruction manual are available for downloading at www.xhhuanglab.cn/tool/OutcrossSeq.html.Mengjiao Chen Weijuan Fan Feiyang Ji Hua Hua Jie Liu Mengxiao Yan Qingguo Ma Jiongjiong Fan Qin Wang Shufeng Zhang Guiling Liu Zhe Sun Changgeng Tian Fengling Zhao Jianli Zheng Qi Zhang Jiaxin Chen Jie Qiu Xin Wei Ziru Chen Peng Zhang Dong Pei Jun Yang Xuehui Huang 2021Molecular Plant2021,14,4:4
5Woody species Rhus chinensis Mill. seedlings tolerance to Pb:Physiological and biochemical response显示文摘Screening potential plant species is a crucial consideration in phytoremediation technology.Our previous study demonstrated that Rhus chinensis Mill. seedlings had potentials for phytoremediation of Pb contaminated soil. However, its bioaccumulation and tolerance characteristics remain unclear. Seedling growth, LMWOAs secreted by roots, Pb subcellular distribution and chemical forms, and mineral elements in R. chinensis tissues were evaluated under different Pb concentrations(0, 25, 50, 100, 200 and 400 mg/L) in culture solution at14 days after planting. R. chinensis did not show visual symptoms of Pb toxicity under lower Pb treatments; however, Pb significantly declined the growth of seedlings under higher Pb treatments. Higher Pb stress also decreased the concentrations of nitrogen in leaves, but increased the concentrations of P and K in roots. Pb stress also decreased Mn concentrations in leaves. A great quantity of Pb was uptake and mostly retained in R. chinensis roots.Nonetheless, R. chinensis can still concentrate 459.3 and 1102.7 mg/kg Pb in leaves and stems,respectively. Most of Pb in R. chinensis tissues was stored in the cell wall with HAc-, HCl-, and NaC l-extractable form. LMWOAs secreted by R. chinensis roots showed a strong positive correlation with Pb concentrations in all plant tissues and with P in roots. Our results suggested that Pb deposited in the cell wall and integration with phosphate or oxalate might be responsible for the tolerance of R. chinensis under Pb stress in short period.Xiang Shi Shufeng Wang Dongxue Wang Haijing Sun Yitai Chen Jianfeng Liu Zeping Jiang 2019Journal of Environmental Sciences2019,31,4:3
6Confined-solution process for high-quality CH3NH3PbBr3 single crystals with controllable morphologies显示文摘Yitan Li Lu Han Qiao Liu Wei Wang Yuguang Chen Min Lyu Xuemei Li Hao Sun Hao Wang Shufeng Wang Yan Li 2018Nano Research2018,11,6:2
7Estimating the Parental Magma Composition and Temperature of the Xiaohaizi Cumulate-Bearing Ultramafic Rock: Implication for Magma Evolution of the Tarim Large Igneous Province, Northwestern China显示文摘The ultramafic dikes in the Tarim large igneous province(Tarim LIP), exposed in the Xiaohaizi area in the northwestern Tarim Basin of northwestern China, have porphyritic textures, and the olivine and clinopyroxene are as the major phenocryst phases. The groundmass therein consists of clinopyroxene, plagioclase and Fe-Ti oxides, with the cryptocrystalline texture. The olivine phenocrysts in one typical ultramafic dike have Fo(Mg/(Mg+Fe)) numbers ranging from 73 to 85, which are not in equilibrium with the olivine(Mg# of 89) from the host rock crystalized. Combined with microscope observation, both the olivine and clinopyroxene phenocrysts as well as some Fe-Ti oxides in the ultramafic rock are accounted as cumulates. The liquid(parental magma) composition of SiO_2 of 45.00 wt.%–48.82 wt.%, MgO of 9.93 wt.%– 18.56 wt.%, FeO of 5.85 wt.%–14.17 wt.%, CaO of 7.54 wt.%–11.52 wt.%, Al_2O_3 of 8.70 wt.%–11.62 wt.% and TiO_2 of 0.00 wt.%–3.43 wt.% in the Xiaohaizi ultramafic rock was estimated by mass balance, and the results show a reasonable liquid proportion in the cumulate-bearing ultramafic dike(ca. 45%–60% in the whole rock). The estimated parental magma composition corresponds to a melting temperature of 1 300–1 550 oC, which is equal or higher than those of a normal asthenosphere mantle, supporting the involvement of a mantle plume. Combined with other previous studies, an evolution model for the formation processes of the Xiaohaizi ultramafic dike of the Tarim LIP is proposed.Haowei Sun Yinqi Li Zilong Li Siyuan Zou Charles H.Langmuir Hanlin Chen Shufeng Yang Zhongyuan Ren 2016Journal of Earth Science2016,27,3:2
8Application of loop-mediated isothermal amplification for detection of Yersinia enterocolitica in pork meat显示文摘Hongwei Gao Zhiwen Lei Juntao Jia Shufeng Wang Ying Chen Min Sun Chengzhu Liang 2009Journal of Microbiological Methods2009,,2:1
9An innovative method for surface defects prevention in micro milling and its imple- mentation perspectives 显示文摘Wan Y Cheng K Sun Shufeng 2013Journal of Engineering Tribolo- gy2013,227,12:1
10Research on encoding and decoding of non-binary polar codes over GF(2m)显示文摘Binary Polar Codes (BPCs) have advantages of high-efficiency and capacity-achieving but suffer from large latency due to the Successive-Cancellation List (SCL) decoding. Non-Binary Polar Codes (NBPCs) have been investigated to obtain the performance gains and reduce latency under the implementation of parallel architectures for multi-bit decoding. However, most of the existing works only focus on the Reed-Solomon matrix-based NBPCs and the probability domain-based non-binary polar decoding, which lack flexible structure and have a large computation amount in the decoding process, while little attention has been paid to general non-binary kernel-based NBPCs and Log-Likelihood Ratio (LLR) based decoding methods. In this paper, we consider a scheme of NBPCs with a general structure over GF(2m). Specifically, we pursue a detailed Monte-Carlo simulation implementation to determine the construction for proposed NBPCs. For non-binary polar decoding, an SCL decoding based on LLRs is proposed for NBPCs, which can be implemented with non-binary kernels of arbitrary size. Moreover, we propose a Perfect Polarization-Based SCL (PPB-SCL) algorithm based on LLRs to reduce decoding complexity by deriving a new update function of path metric for NBPCs and eliminating the path splitting process at perfect polarized (i.e., highly reliable) positions. Simulation results show that the bit error rate of the proposed NBPCs significantly outperforms that of BPCs. In addition, the proposed PPB-SCL decoding obtains about a 40% complexity reduction of SCL decoding for NBPCs.Shufeng Li Mingyu Cai Robert Edwards Yao Sun Libiao Jin 2022Digital Communications and Networks2022,8,3:1
11Conditioning strategies of indoor thermal environment in warm climates显示文摘Zhao Rongyi Sun Shufeng Ding Rongyi 2004Energy and Buildings2004,36,12:1
12Fabrication of high-strength Ti materials by in-process solid solution strengthening of oxygen via P/M methods显示文摘Bin Sun Shufeng Li Hisashi Imai Takanori Mimoto Junko Umeda Katsuyoshi Kondoh 2013Materials Science & Engineering A2013,,:1
13Tailings dam stability analysis of the process of recovery显示文摘YANG Yi SUN Wei LI Shufeng 2011Procedia Engineering2011,26,:1
14Electrochemistry of hemoglobin entrapped in a Nafion/nano-ZnO film on carbon ionic liquid electrode显示文摘Wei Sun ZiQin Zhai DanDan Wang ShuFeng Liu Kui Jiao 2008Bioelectrochemistry2008,,2:1
15Characteristics of source rocks and hydrocarbon resource prospects of Permian Linxi Formation in northern Songliao Basin显示文摘In order to explore the oil and gas resource prospects in the Carboniferous–Permian strata in northern Songliao Basin,geological survey boreholes(HFD 1 and HFD 2)were drilled in the area,and thick dark mudstone and slate of the Upper Permian Linxi Formation were encountered.Source rock geochemistry analysis of the samples show that the organic matter abundance of the Upper Permian Linxi Formation source rock in the north of Songliao Basin is high,which belongs to medium to good source rock.The organic matter belongs to type Ⅱ,and it is in the evolution stage of highly mature to over mature.The Pr/Ph ratios of the source rocks range from 0.16 to 0.93,with an average of 0.53.The phytane predominance is obvious,and indicates a strong reduction to reduction sedimentary environment,which is conducive to the preservation of organic matter.Pr/nC_(17),Ph/nC_(18) and C_(27)–C_(28)–C_(29) regular steranes indicate that the organic matter was derived from a mixture of vascular plants and aquatic organisms such as algae,and is mainly contributed by phytoplankton.Through comprehensive analysis,it is considered that the source rocks of the Upper Permian Linxi Formation in northern Songliao Basin have entered the gas generation stage and have shale gas exploration prospects.ZHANG Haihua GENG Shufeng ZHANG Jian SUN Lei CHEN Shuwang SU Fei ZHENG Yuejuan ZHANG Dejun BIAN Xiongfei 2022Global Geology2022,25,3:1
16A Novel Magnetic Separation Oxygen-enriched Method and the Influence of Temperature and Magnetic Field on Enrichment显示文摘一个新奇充实氧的方法被介绍。与某些距离在二个磁铁的磁性的杆对面使用二形成在它的边阶附近有一个领域紧张坡度的一个磁性的空格。当空气经由它的边阶从磁性的空间注入了磁性的空间流出时,没有阻碍者,在空中的氧分子将经历坡度磁场,而是氮分子愿望流出的拦截效果。从而,连续的氧丰富被认识到。当磁性的流动密度和域紧张坡度的最大的产品是 563T2/m 时,结果证明氧集中的最大的增长在 298 K 到达 0.49% 。丰富水平被煤气的温度和磁场显著地影响。当煤气的温度升起到 343 K 时,氧集中的最大的增长落下到 0.16% ,并且当磁性的流动密度和坡度的最大的产品从 563 T2/m 被归结为 101 T2/m 时,落下到 0.09% 。Li WANG Jun CAI Ping WU Lige TONG Shufeng SUN 2007Journal of Thermal Science2007,16,1:1
17Pre‑rainy Season Rainstorms in South China—Risk Perception of the 11 April 2019 Rainstorm in Shenzhen City显示文摘With the acceleration of urbanization in South China, rainstorms and floods are threatening the safety of people in urban areas. The 11 April 2019(4·11 hereafter)rainstorm in Shenzhen City was a typical pre-rainy season rainstorm that caused great damage, yet such pre-rainy season events have not attracted sufficient attention in research.Risk perception of the public may indirectly affect their disaster preparedness, which is important for disaster management. In this study, we conducted a questionnaire survey that considered demographic factors and the level of risk perception, knowledge of risk, impact of the 4·11 rainstorm event on public risk perception, and degree of trust in the government. We used a two-factor model of risk perception to evaluate the factors that influenced public risk perception of the 4·11 rainstorm in Shenzhen. The main conclusions are: The 4·11 rainstorm improved public awareness of both risk and impact through the medium term, but the public’s perceived low probability of disaster occurrence and lack of knowledge of the pre-rainy season rainstorm phenomenon led to serious losses during this event. Although the public has high trust in the Shenzhen government, the management of rainstorm disasters in the pre-rainy season needs to be further improved.Xuran Sun Wei Zhou Guoming Zhang Lianyou Liu Guangpeng Wang Mingzhu Xiang Yuting Xiao Shufeng Qu Shouwei Li Jiaxue Li 2022International Journal of Disaster Risk Science2022,13,6:0
18Chromosome-scale genome assembly of Prunus pusilliflora provides novel insights into genome evolution, disease resistance, and dormancy release in Cerasus L.显示文摘Prunus pusilliflora is a wild cherry germplasm resource distributed mainly in Southwest China.Despite its ornamental and economic value,a high-quality assembled P.pusilliflora genome is unavailable,hindering our understanding of its genetic background,population diversity,and evolutionary processes.Here,we de novo assembled a chromosome-scale P.pusilliflora genome using Oxford Nanopore,Illumina,and chromosome conformation capture sequencing.The assembled genome size was 309.62 Mb,with 76 scaffolds anchored to eight pseudochromosomes.We predicted 33035 protein-coding genes,functionally annotated 98.27%of them,and identified repetitive sequences covering 49.08%of the genome.We found that P.pusilliflora is closely related to Prunus serrulata and Prunus yedoensis,having diverged from them∼41.8 million years ago.A comparative genomic analysis revealed that P.pusilliflora has 643 expanded and 1128 contracted gene families.Furthermore,we found that P.pusilliflora is more resistant to Colletotrichum viniferum,Phytophthora capsici,and Pseudomonas syringae pv.tomato(Pst)DC3000 infections than cultivated Prunus avium.P.pusilliflora also has considerably more nucleotide-binding site-type resistance gene analogs than P.avium,which explains its stronger disease resistance.The cytochrome P450 and WRKY families of 263 and 61 proteins were divided into 42 and 8 subfamilies respectively in P.pusilliflora.Furthermore,81 MADS-box genes were identified in P.pusilliflora,accompanying expansions of the SVP and AGL15 subfamilies and loss of the TM3 subfamily.Our assembly of a high-quality P.pusilliflora genome will be valuable for further research on cherries and molecular breeding.Songtao Jiu Baozheng Chen Xiao Dong Zhengxin Lv Yuxuan Wang Chunjin Yin Yan Xu Sen Zhang Jijun Zhu Jiyuan Wang Xunju Liu Wanxia Sun Guoqian Yang Meng Li Shufeng Li Zhuo Zhang Ruie Liu Lei Wang Muhammad Aamir Manzoor Quero-García José Shiping Wang Yahui Lei Ling Yang Elisabeth Dirlewanger Yang Dong Caixi Zhang 2023Horticulture Research2023,10,5:0
19Extraction of uranium (VI) from nitric acid with N-decanoylpyrrolidine (DPOD) in toluene显示文摘The extraction behaviors of uranium (VI) from nitric acid by N-decanoylpyrrolidine (DPOD) in toluene has been studied at varying concentrations of nitric acid, extractant, salting out agent LiNO3 and at different temperatures. The mechanism of extraction is discussed in the light of the results obtained.HAN Jingtian SUN Guoxin BAO Borong (Shanghai Institute of Nuclear Research, the Chinese Academy of Sciences, Shanghai 201800) CHEN Shufeng SHEN Yunxiu (Binzhou Medical College, Binzhou 256603) 1999Nuclear Science and Techniques1999,10,1:0
20Remarkable mechanochromism and force-induced thermally activated delayed fluorescence enhancement from white-light-emitting organic luminogens with aggregation-induced emission显示文摘The development of organic materials with white-light emission and thermally activated delayed fluorescence(TADF)properties in the solid state remain a challenge.Herein,a series of white-light-emitting organic luminogens have been developed and are found to show aggregation-induced delayed fluorescence(AIDF)characteristics.The AIDF emitters present dual-emission consisted of prompt fluorescence and TADF in the crystalline state.Their white-light emissions can be easily tuned by altering the chemical structure and connecting position of the heterocyclic aromatic substituent.Under the stimuli of mechanical force and solvent vapor,the compounds exhibit remarkable and reversible mechanochromism,in which their emission colors are switchable between white and yellow.Upon grinding,they also display linearly tunable luminescence colors,as well as force-induced TADF enhancement,which may be associated with the more compact molecular packing and the restriction of intramolecular motions.The results from time-resolved emission scanning and theoretical calculation suggest that the dual-emission of the AIDF luminogens likely results from the twisted intramolecular charge transfer transitions of the molecules,and the reversible mechanochromism properties probably stem from the interconversion of the quasi-axial and the quasi-equatorial conformations.Yitao Zheng Lingqi Zuo Letian Zhang Zihao Huang Shufeng Li Zhan Yang Zhu Mao Suilian Luo Cong Liu Fengqiang Sun Guang Shi Zhenguo Chi Bingjia Xu 2022Chinese Chemical Letters2022,33,10:0
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