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| 1 | Deep carbon cycles constrained by a large-scale mantle Mg isotope anomaly in eastern China显示文摘Although deep carbon recycling plays an important role in the atmospheric CO_2 budget and climate changes through geological time,the precise mechanisms remain poorly understood.Since recycled sedimentary carbonate through plate subduction is the main light-δ^(26)Mg reservoir within deep-Earth,Mg isotope variation in mantle-derived melts provides a novel perspective when investigating deep carbon cycling.Here,we show that the Late Cretaceous and Cenozoic continental basalts from 13 regions covering the whole of eastern China have low δ^(26)Mg isotopic compositions,while the Early Cretaceous basalts from the same area and the island arc basalts from circum-Paciic subduction zones have mantle-like or heavy Mg isotopic characteristics.hus,a large-scale mantle low δ^(26)Mg anomaly in eastern China has been delineated,suggesting the contribution of sedimentary carbonates recycled into the upper mantle,but limited into the lower mantle.his large-scale spatial and temporal variation of Mg isotopes in the mantle places severe constraints on deep carbon recycling via oceanic subduction. | Shu-Guang Li Wei Yang Shah Ke Xunan Meng Hengci Tian Lijuan Xu Yongsheng He Jian Huang Xuan-Ce Wang Qunke Xia Weidong Sun Xiaoyong Yang Zhong-Yuan Ren Haiquan Wei Yongsheng Liu Fancong Meng Jun Yan | 2017 | National Science Review2017,4,1: | 23 |
| 2 | Satellite Image Matching Method Based on Deep Convolutional Neural Network显示文摘This article focuses on the first aspect of the album of deep learning: the deep convolutional method. The traditional matching point extraction algorithm typically uses manually designed feature descriptors and the shortest distance between them to match as the matching criterion. The matching result can easily fall into a local extreme value, which causes missing of the partial matching point. Targeting this problem, we introduce a two-channel deep convolutional neural network based on spatial scale convolution, which performs matching pattern learning between images to realize satellite image matching based on a deep convolutional neural network. The experimental results show that the method can extract the richer matching points in the case of heterogeneous, multi-temporal and multi-resolution satellite images, compared with the traditional matching method. In addition, the accuracy of the final matching results can be maintained at above 90%. | Dazhao FAN Yang DONG Yongsheng ZHANG | 2019 | Journal of Geodesy and Geoinformation Science2019,2,2: | 16 |
| 3 | Water contents and deformation mechanism in ductile shear zone of middle crust along the Red River fault in southwestern China显示文摘Using Fourier transform infrared spectroscopy (FTIR), we measured water contents of quartz and feldspar for four thin sections of felsic mylonite and two thin sections of banded granitic gneiss col- lected from a ductile shear zone of middle crust along the Red Rivers-Ailaoshan active fault. The ab- sorbance spectra and peak position suggest that water in quartz and feldspar of granitic gneiss and felsic mylonite occurs mainly as hydroxyl in crystal defect, but also contains inclusion water and grain boundary water. The water contents of minerals were calculated based on the absorbance spectra. Water content of feldspar in granitic gneiss is 0.05 wt%-0.15 wt%, and that of quartz 0.03 wt%-0.09 wt%. Water content of feldspar ribbon and quartz ribbon in felsic mylonite is 0.095 wt%-0.32 wt%, and those of fine-grained feldspar and quartz are 0.004 wt%-0.052 wt%. These data show that the water content of weakly deformed feldspar and quartz ribbons is much higher than that of strongly deformed fine-grained feldspar and quartz. This suggests that strong shear deformation leads to breakage of the structures of constitutional water, inclusion and grain boundary water in feldspar and quartz, and most of water in minerals of mylonite is released to the upper layer in the crust. | ZHOU YongSheng HE ChangRong YANG XiaoSong | 2008 | Science China Earth Sciences2008,51,10: | 14 |
| 4 | Spectral analysis and self-adjusting mechanism for oscillation phenomenon in hydrogen-oxygen continuously rotating detonation engine显示文摘The continuously rotating detonation engine(CRDE)is a new concept of engines for aircraft and spacecraft.Quasi-stable continuously rotating detonation(CRD)can be observed in an annular combustion chamber,but the sustaining,stabilizing and adjusting mechanisms are not yet clear.To learn more deeply into the CRDE,experimental studies have been carried out to investigate hydrogen-oxygen CRDE.Pressure histories are obtained during each shot,which show that stable CRD waves are generated in the combustor,when feeding pressures are higher than 0.5 MPa for fuel and oxidizer,respectively.Each shot can keep running as long as fresh gas feeding maintains.Close-up of the pressure history shows the repeatability of pressure peaks and indicates the detonation velocity in hydrogen–oxygen CRD,which proves the success of forming a stable CRD in the annular chamber.Spectrum of the pressure history matches the close-up analysis and confirms the CRD.It also shows multi-wave phenomenon and affirms the fact that in this case a single detonation wave is rotating in the annulus.Moreover,oscillation phenomenon is found in pressure peaks and a self-adjusting mechanism is proposed to explain the phenomenon. | Liu Yusi Wang Yuhui Li Yongsheng Li Yang Wang Jianping | 2015 | Chinese Journal of Aeronautics2015,28,3: | 14 |
| 5 | State-owned Enterprises' Outward Investment and the Structural Reform in China显示文摘自从中国在 2001 的 WTO 的就职,中国以从事向外直接的投资在一条陡峭的学习曲线上,并且国有企业(SOEs ) 在这个运动起了一个占优势的作用。我们主张根据它国内改革上的影响被担心,由 SOEs 海外的那项投资是一把双重的剑。投资海外提议机会在中国,而是如此的投资加深结构的改革能也加强一些 SOEs 的垄断位置,它与国内改革的目的不一致。因此,中国关于竞争,所有权和规定加深国内改革是重要的,到从海外投资最大化好处。现在的纸也讨论大楼市场兼容机机构怎么将导致增加的革新。这提供机会让中国公司有效地赶上先进技术在海外市场仍然保持竞争。 | Ligang Song Jidong Yang Yongsheng Zhang | 2011 | China & World Economy2011,19,4: | 13 |
| 6 | NASICON-structured Na3.1Zr1.95Mg0.05Si2PO12 solid electrolyte for solid-state sodium batteries显示文摘Using stable inorganic solid electrolyte to replace organic liquid electrolyte could significantly reduce potential safety risks of rechargeable batteries. Na-superionic conductor(NASICON)-structured solid electrolyte is one of the most promising sodium solid electrolytes and can be employed in solid-state sodium batteries. In this work, a NASICONstructured solid electrolyte Na_(3.1)Zr_(1.95)Mg_(0.05)Si_2PO_(12) was synthesized through a facile solid-state reaction, yielding high sodium-ionic conductivity of 1.33×10^(-3) S·cm^(-1) at room temperature. The results indicate that Mg^(2+)is a suitable and economical substitution ion to replace Zr^(4+), and this synthesis route can be scaled up for powder preparation with low cost. In addition to electrolyte material preparation, solid-state batteries with Na_(3.1)Zr_(1.95)Mg_(0.05)Si_2PO_(12) as electrolyte were assembled. A specific capacity of 57.9 mAh·g^(-1) is maintained after 100 cycles under a current density of 0.5 C rate at room temperature. The favorable cycling performance of the solid-state battery suggests that Na_(3.1)Zr_(1.95)Mg_(0.05)Si_2PO_(12) is an ideal electrolyte candidate for solid-state sodium batteries. | Jing Yang HongLi Wan ZhiHua Zhang GaoZhan Liu XiaoXiong Xu YongSheng Hu Xia-Yin Yao | 2018 | Rare Metals2018,37,6: | 10 |
| 7 | Research status of biodegradable metals designed for oral and maxillofacial applications:A review显示文摘The oral and maxillofacial regions have complex anatomical structures and different tissue types,which have vital health and aesthetic functions.Biodegradable metals(BMs)is a promising bioactive materials to treat oral and maxillofacial diseases.This review summarizes the research status and future research directions of BMs for oral and maxillofacial applications.Mg-based BMs and Zn-based BMs for bone fracture fixation systems,and guided bone regeneration(GBR)membranes,are discussed in detail.Zn-based BMs with a moderate degradation rate and superior mechanical properties for GBR membranes show great potential for clinical translation.Fe-based BMs have a relatively low degradation rate and insoluble degradation products,which greatly limit their application and clinical translation.Furthermore,we proposed potential future research directions for BMs in the oral and maxillofacial regions,including 3D printed BM bone scaffolds,surface modification for BMs GBR membranes,and BMs containing hydrogels for cartilage regeneration,soft tissue regeneration,and nerve regeneration.Taken together,the progress made in the development of BMs in oral and maxillofacial regions has laid a foundation for further clinical translation. | Dandan Xia Fan Yang Yufeng Zheng Yunsong Liu Yongsheng Zhou | 2021 | Bioactive Materials2021,6,11: | 9 |
| 8 | Enhancing the accuracy of area extraction in machine vision-based pig weighing through edge detection显示文摘The accuracy of extracting projected pig area is critical to the accuracy of the weight measurement of pigs by machine vision.The capability of both the conventional and the edge detection methods for extracting pig area was examined using the images of 47 pigs of different weights.Relationship between the threshold value and the extracted area was numerically analyzed for both methods.It was found that the accuracy of the conventional method depended heavily on the threshold value,while choice of threshold value in the edge detection approach had no influence on the extracted area over a wide range.In normal lighting conditions,both methods yielded comparable values of predicted weight;however,under variable light intensities,the edge detection method was superior to the conventional method,because the former was proven to be independent of light intensities.This makes edge detection an ideal method for area extraction during the walk-through weighing process where pigs are allowed to move around. | Yongsheng Wang Wade Yang Lloyd T.Walker Taha M.Rababah | 2008 | International Journal of Agricultural and Biological Engineering2008,1,1: | 9 |
| 9 | An overview of the configuration and manipulation of soft robotics for on-orbit servicing显示文摘Soft robots refer to robots that are softer and more flexible when compared with conventional rigidbodied robots. Soft robots are adapted to unstructured environments due to their flexibility, deformability and energy-absorbing properties. Thus, they have tremendous application prospects in on-orbit servicing(OOS).This study discusses the configuration and manipulation of soft robotics. Usually, learning from living beings is used to develop the configurations of most soft robots. In this study, typical soft robots are introduced based on what they mimic. The discussion of manipulation is divided into two parts, namely actuation and control.The study also involves describing and comparing several types of actuations. Studies on the control of soft robots are also reviewed. In this study, potential application of soft robotics for on-orbit servicing is analyzed.A hybrid configuration and manipulation of space soft robots for future research are proposed based on the current development of soft robotics, and some challenges are discussed. | Zhongliang JING Lingfeng QIAO Han PAN Yongsheng YANG Wujun CHEN | 2017 | Science China(Information Sciences)2017,60,5: | 8 |
| 10 | Discovery of coesite in eclogite from Keqike Jianggalesayi: new evidence for ultrahigh-pressure metamorphism in South Altyn Tagh, northwestern China显示文摘Coesite is a polymorph of Si O2formed at speci?c high-pressure conditions, and its presence in some crustal rocks as relicts marks the exhumation of deep subducted material to mantle depths, thus providing robust evidence for the hypothesis on ultrahigh pressur (UHP) metamorphism [1]. The discovery of coesite and other | Yongsheng Gai Liang Liu Chao Wang Wenqiang Yang Lei Kang Yuting Cao Xiaoying Liao | 2017 | Science Bulletin2017,62,15: | 8 |
| 11 | Experimental study on strain and deformation monitoring of reinforced concrete structures using PPP-BOTDA显示文摘Pulse-prepump Brillouin optical time domain analysis (PPP-BOTDA) is a novel technique for distributed strain measurements, in which a pre-pump pulse is inputted in front of the measuring pump pulse to stimulate the phonon, so that higher spatial resolution and measurement precision can be obtained. Principle, methodologies and technical parameters of the PPP-BOTDA are presented and the influence of temperature on measurements is discussed. Applications are made in the bond test of steel rebars and the bending test of concrete girders. Test results show that the PPP-BOTDA can provide a precise description on the strain distribution of steel rebar and concrete, exhibiting the ability for crack detection. Moreover, structural deformation can be obtained indirectly by accumulating the distributed strains along the optical fiber, thus the deflection curves of the concrete girder during the loading process are obtained. Suggestions with regards to the application of the PPP-BOTDA in strain measurements and crack monitoring for civil infrastructures are given. | GUO Tong LI AiQun SONG YongSheng ZHANG Biao LIU Yang YU NingSheng | 2009 | Science China(Technological Sciences)2009,52,10: | 7 |
| 12 | Analysis of Meteorological Causes of Serious Air Pollution in Xingtai City Based on Inversion Layer显示文摘Based on meteorological sounding data in 2011- 2014 and air pollution data in 2013 and 2014 from an environmental monitoring station in Xingtai City,the characteristics of inversion layer and air pollution and their correlation in Xingtai City were discussed. The results show that temperature inversion was very serious at 07: 00 in Xingtai City,and days with temperature inversion accounted for above 90%. There were obvious seasonal variations in air pollution in Xingtai City,and air pollution was the most serious in winter but the slightest in summer. The primary air pollutants in Xingtai City are PM_(10) and PM_(2. 5),and the primary air pollutants and AQI had close correlation with parameters of inversion layer. Stable ground inversion layer could hinder air convection and air capacity,so that air pollution become more serious with the discharge of pollutants. Inversion layer nearly appearing all the year around is an important meteorological reason for serious air pollution in Xingtai City. | Zhang Enzhong Yang Yunling Dong Xiaoyan Yang Yongsheng Nie Dongge Hao Jufei | 2015 | Meteorological and Environmental Research2015,6,7: | 7 |
| 13 | INHOMOGENEOUS BESOV AND TRIEBEL-LIZORKING SPACES ON SPACES OF HOMOGENEOUS TYPE显示文摘The authors introduce the inhomogeneous esov space and the inhomogeneous Triebel-Lizorkin space on spaces of homogeneous type; and present their atom and molecule decompositions, their dual spaces and the complex interpolation theorems. They also establishe the relation between the homogoeneous Besov space and the inhomogeneous one, and between the homogeneous Triebel-Lizorkin space and the inhomogeneous one. Moreover,they establish T1 theorems for these inhomogeneous spaces when a≠0, and applythese T1 theorems to give new characterizations of these | Yongsheng Han (1) Shanzhen Lu (2) Dachun Yang (2) | 1999 | Analysis in Theory and Applications1999,15,3: | 6 |
| 14 | Kiwifruit Genome Database(KGD):a comprehensive resource for kiwifruit genomics显示文摘Kiwifruit(Actinidia spp.)plants produce economically important fruits containing abundant,balanced phytonutrients with extraordinarily high vitamin C contents.Since the release of the first kiwifruit reference genome sequence in 2013,large volumes of genome and transcriptome data have been rapidly accumulated for a handful of kiwifruit species.To efficiently store,analyze,integrate,and disseminate these large-scale datasets to the research community,we constructed the Kiwifruit Genome Database(KGD;http://kiwifruitgenome.org/).The database currently contains all publicly available genome and gene sequences,gene annotations,biochemical pathways,transcriptome profiles derived from public RNA-Seq datasets,and comparative genomic analysis results such as syntenic blocks and homologous gene pairs between different kiwifruit genome assemblies.A set of user-friendly query interfaces,analysis tools and visualization modules have been implemented in KGD to facilitate translational and applied research in kiwifruit,which include JBrowse,a popular genome browser,and the NCBI BLAST sequence search tool.Other notable tools developed within KGD include a genome synteny viewer and tools for differential gene expression analysis as well as gene ontology(GO)term and pathway enrichment analysis. | Junyang Yue Jiacheng Liu Wei Tang Ya Qing Wu Xiaofeng Tang Wei Li Ying Yang Lihuan Wang Shengxiong Huang Congbing Fang Kun Zhao Zhangjun Fei Yongsheng Liu Yi Zheng | 2020 | Horticulture Research2020,7,1: | 6 |
| 15 | A 357.9 nm GaN/AlGaN multiple quantum well ultraviolet laser diode显示文摘Ultraviolet(UV)and deep-UV light emitters are prom-ising for various applications including bioagent detection,wa-ter and air purification,dermatology,high-density optical stor-age,and lithography.However,to achieve shorter UV laser di-odes(LDs),especially for the LDs with lasing wavelength less than 360 nm,requires high AlN mole fraction AlGaN clad-ding layer(CL)and waveguide(WG)layers,which usually leads to generate cracks in AlGaN epilayer due to lack of lat-tice-matched substrates.Meanwhile,due to high resistivity of high AlN mole fraction Mg doped AlGaN layers,only few groups have reported GaN-based LDs with emission wavelength shorter than 360 nm[1−8],and up to now,there is no room temperature continuous-wave(CW)operation UV LDs with a lasing wavelength shorter than 360 nm ever repor-ted.Previously,we have reported a UV LD with lasing wavelength of 366 nm[9].In this paper,a higher AlN mole frac-tion of AlGaN WG layers is employed to shorten the LD emis-sion wavelength to less than 360 nm.A lasing wavelength of 357.9 nm is achieved. | Jing Yang Degang Zhao Zongshun Liu Feng Liang Ping Chen Lihong Duan Hai Wang Yongsheng Shi | 2022 | Journal of Semiconductors2022,43,1: | 6 |
| 16 | GaN-based blue laser diode with 6.0 W of output power under continuous-wave operation at room temperature显示文摘In this work,we reported the room-temperature continuous-wave operation of 6.0 W GaN-based blue laser diode(LD),and its stimulated emission wavelength is around 442 nm.The GaN-based high power blue LD is grown on a c-plane GaN substrate by metal organic chemical vapor deposition(MOCVD),and the width and length of the ridge waveguide structure are 30 and 1200μm,respectively.The threshold current is about 400 mA,and corresponding threshold current density is 1.1 kA/cm2. | Feng Liang Degang Zhao Zongshun Liu Ping Chen Jing Yang Lihong Duan Yongsheng Shi Hai Wang | 2021 | Journal of Semiconductors2021,42,11: | 6 |
| 17 | Fabrication of room temperature continuous-wave operation GaN-based ultraviolet laser diodes显示文摘Two kinds of continuous-wave GaN-based ultraviolet laser diodes(LDs) operated at room temperature and with different emission wavelengths are demonstrated.The LDs epitaxial layers are grown on GaN substrate by metalorganic chemical vapor deposition,with a 10 × 600 μm^2 ridge waveguide structure.The electrical and optical characteristics of the ultraviolet LDs are investigated under direct-current injection at room temperature.The stimulated emission peak wavelength of first LD is 392.9 nm,the threshold current density and voltage is 1.5kA/cm^2 and 5.0 V,respectively.The output light power is 80 mW under the 4.0 kA/cm^2 injection current density.The stimulated emission peak wavelength of second LD is 381.9 nm,the threshold current density the voltage is2.8 kA/cm^2 and 5.5 V,respectively.The output light power is 14 mW under a 4.0 kA/cm^2 injection current density. | Degang Zhao Jing Yang Zongshun Liu Ping Chen Jianjun Zhu Desheng Jiang Yongsheng Shi Hai Wang Lihong Duan Liqun Zhang Hui Yang | 2017 | Journal of Semiconductors2017,38,5: | 6 |
| 18 | Deep-water Riser Fatigue Monitoring Systems Based on Acoustic Telemetry显示文摘Marine risers play a key role in the deep and ultra-deep water oil and gas production. The vortex-induced vibration(VIV) of marine risers constitutes an important problem in deep water oil exploration and production. VIV will result in high rates of structural failure of marine riser due to fatigue damage accumulation and diminishes the riser fatigue life. In-service monitoring or full scale testing is essential to improve our understanding of VIV response and enhance our ability to predict fatigue damage. One marine riser fatigue acoustic telemetry scheme is proposed and an engineering prototype machine has been developed to monitor deep and ultra-deep water risers' fatigue and failure that can diminish the riser fatigue life and lead to economic losses and eco-catastrophe. Many breakthroughs and innovation have been achieved in the process of developing an engineering prototype machine. Sea trials were done on the 6th generation deep-water drilling platform HYSY-981 in the South China Sea. The inclination monitoring results show that the marine riser fatigue acoustic telemetry scheme is feasible and reliable and the engineering prototype machine meets the design criterion and can match the requirements of deep and ultra-deep water riser fatigue monitoring. The rich experience and field data gained in the sea trial which provide much technical support for optimization in the engineering prototype machine in the future. | LI Baojun WANG Haiyan SHEN Xiaohong YAN Yongsheng YANG Fuzhou HUA Fei | 2014 | Journal of Ocean University of China2014,13,6: | 5 |
| 19 | Activating interfacial S sites of MoS_(2) boosts hydrogen evolution electrocatalysis显示文摘The hydrogen evolution reaction(HER)of molybdenum disulfide(MoS_(2))is limited in alkaline and acid solution because the active sites are on the finite edge with extended basal plane remaining inert.Herein,we activated the interfacial S sites by coupling with Ru nanoparticles on the inert basal plane of MoS_(2)nanosheets.The density functional theory(DFT)calculation and experimental results show that the interfacial S electronic structure was modulated.And the results of∆G H*demonstrate that the adsorption of H on the MoS_(2)was also optimized.With the advantage of interfacial S sites activation,the Ru-MoS_(2)needs only overpotential of 110 and 98 mV to achieve 10 mA·cm^(–2)in both 0.5 M H_(2)SO_(4)and ^(1) M KOH solution,respectively.This strategy paves a new way for activating the basal plane of other transition metal sulfide electrocatalysts for improving the HER performance. | Shuo Geng Fenyang Tian Menggang Li Yequn Liu Jie Sheng Weiwei Yang Yongsheng Yu Yanglong Hou | 2022 | Nano Research2022,15,3: | 5 |
| 20 | Functionalized graphene oxide based on p-phenylenediamine as spacers and nitrogen dopants for high performance supercapacitors显示文摘p-Phenylenediamine(PPD)functionalized graphene oxide(GO)materials(PPDG)were prepared through a one-step solvothermal process and their application as supercapacitors(SCs)were studied.The PPD is not only as the spacers to prevent aggregating and restacking of the graphene sheets in the preparing process but also as nitrogen sources to obtain the nitrogen-doped graphene.The structures of PPDG were characterized by Fourier transformed infrared spectroscopy(FT-IR),X-ray diffraction spectroscopy(XRD),Raman spectroscopy and X-ray photoelectron spectroscopy(XPS)and the results show that the nitrogen-doped graphene was achieved with nitrogen content as high as 10.85 at.%.The field emission scanning electron microscopy(FE-SEM)and high resolution transmission electron microscopy(HR-TEM)have confirmed that the morphologies of PPDG were loose layered with less aggregation,indicating that PPD molecules,as spacers,effectively prevent the graphene sheets from restacking during the solvothermal reaction.The special loose textures make PPDG materials exhibit excellent electrochemical performance for symmetric SCs with superior specific capacitance(313 F/g at 0.1 A/g),rate capability and cycling stability.The present synthesis method is convenient and may have potential applications as ultrahigh performance SCs. | Yanhong Lu Yi Huang Fan Zhang Long Zhang Xi Yang Tengfei Zhang Kai Leng Mingjie Zhang Yongsheng Chen | 2014 | Chinese Science Bulletin2014,59,16: | 5 |