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15篇 您的检索式:作者名="Guangyu Fu"
    题名 作者 年代 出处 被引量
1Contemporary crustal tectonic movement in the southern Sichuan-Yunnan block based on dense GPS observation data显示文摘We analyzed 360 permanent and campaign GPS data from 1999 to 2017 in the southern Sichuan-Yunan block, and obtained crustal horizontal deformation in this region.Then, we derived the strain rate using a multi-scale spherical wavelet method.Results reveal a complex pattern of tectonic movement in the southern Sichuan-Yunnan block.Compared to the stable Eurasian plate, the maximum rate of the horizontal deformation in the southern Sichuan-Yunnan block is approximately 22 mm/a.The Xiaojiang fault shows a significantly lower deformation—a left-lateral strike-slip movement of 9.5 mm/a.The Honghe fault clearly shows a complex segmental deformation from the north to south.The northern Honghe fault shows 4.3 mm/a right strike-slip with 6.7 mm/a extension; the southern Honghe fault shows 1.9 mm/a right strike-slip with 1.9 mm/a extension; the junction zone in the Honghe and Lijiang–Xiaojinhe faults shows an obvious clockwise-rotation deformation.The strain calculation results reveal that the maximum shear-strain rate in this region reaches 70 nstrain/a, concentrated around the Xiaojiang fault and at the junction of the Honghe and Lijiang–Xiaojinhe faults.We note that most of the earthquakes with magnitudes of 4 and above that occurred in this region were within the high shear strain-rate zones and the strain rate gradient boundary zone, which indicates that the magnitude of strain accumulation is closely related to the seismic activities.Comparison of the fast shear-wave polarization direction of the upper-crust with the upper-mantle anisotropy and the direction of the surface principal compressive strain rate obtained from the inversion of the GPS data reveals that the direction of the surface principal compressive strain is basically consistent with the fast shear-wave polarization direction of the upper crust anisotropy, but different from the polarization direction of the upper mantle.Our results support the hypothesis that the principal elements of the deformation mechanism in the southern Sichuan-Yunnan block are decoupling between the upper and lower crust and ductile flow in the lower crust.HongLin Jin Yuan Gao XiaoNing Su GuangYu Fu 2019Earth and Planetary Physics2019,3,1:18
2Significant isostatic imbalance near the seismic gap between the M8.0 Wenchuan and M7.0 Lushan earthquakes显示文摘A gravity network with 302 observation points has been established in the western Sichuan Foreland Basin(SFB) to explore Bouguer gravity anomalies(BGAs). Our observational results reveal that the BGAs are negative as a whole, with a maximum value of-220 m Gal(10-5m s-2)at the northwest region of the study area. The real Moho depths beneath the SFB revealed by BGA data change smoothly from 39.5 km in the southeast to 43.7 km in the northwest of the monitoring region. However, the isostatic ones deduced from Airy isostatic model and topographical data vary approximately 39.5–42.0 km. The maximum differences of 2.7 km between the real and isostatic Moho depths are found near the seismic gap between the M8.0Wenchuan and M7.0 Lushan earthquakes, where the crust is in the greatest isostatic imbalance of the monitoring region. Analysis of the isostatic state indicates that the deep dynamic environment near the seismic gap between these two earthquakes indicates an M C 7.0 earthquake in the future. This study indicates that we can use isostasy as a potential approach to study the dynamic process of crustalmaterial movement and to analyze regional potential seismic risks.Guangyu Fu Guoqing Zhang 2014Chinese Science Bulletin2014,59,34:7
3Effects of Earth's curvature and radial heterogeneity in dislocation studies:Case studies of the 2008 Wenchuan earthquake and the 2004 Sumatra earthquake显示文摘Recently,effects of Earth's curvature and radial heterogeneity on coseismic deformations are often investigated based on the 2004 Sumatra earthquake.However,such effects are strongly related to earthquake types.As a low dip angle event,the 2004 Sumatra earthquake is not a good seismic case for such a topic since the effects for moderate dip angle events are much bigger.In this study,the half-space and spherical dislocation theories are used,respectively,to calculate coseismic displacements caused by the 2008 Wenchuan earthquake and the 2004 Sumatra earthquake.Effects of Earth's curvature and stratification are investigated through the discrepancies of results calculated using the two dislocation theories.Results show that the effects of Earth's curvature and stratification for the 2008 Wenchuan earthquake are much larger than those for the 2004 Sumatra earthquake.Ignoring the effects will cause errors up to 100%-200% in far field displacements for a moderate dip angle event like the 2008 Wenchuan earthquake.Such great effects are much bigger than those conclusions of previous studies.Besides,comparison with observations verifies that spherical dislocation theories yield better results than half-space ones in far fields.Guangyu Fu Wenke Sun Yoichi Fukuda Shanghua Gao Takashi Hasegawa 2010Earthquake Science2010,23,4:4
4Solitary beam propagation in periodic layered Kerr media enables high-efficiency pulse compression and mode self-cleaning显示文摘Generating intense ultrashort pulses with high-quality spatial modes is crucial for ultrafast and strong-field science and can be achieved by nonlinear supercontinuum generation(SCG)and pulse compression.In this work,we propose that the generation of quasi-stationary solitons in periodic layered Kerr media can greatly enhance the nonlinear lightmatter interaction and fundamentally improve the performance of SCG and pulse compression in condensed media.With both experimental and theoretical studies,we successfully identify these solitary modes and reveal their unified condition for stability.Space-time coupling is shown to strongly influence the stability of solitons,leading to variations in the spectral,spatial and temporal profiles of femtosecond pulses.Taking advantage of the unique characteristics of these solitary modes,we first demonstrate single-stage SCG and the compression of femtosecond pulses from 170 to 22 fs with an efficiency>85%.The high spatiotemporal quality of the compressed pulses is further confirmed by highharmonic generation.We also provide evidence of efficient mode self-cleaning,which suggests rich spatiotemporal self-organization of the laser beams in a nonlinear resonator This work offers a route towards highly efficient,simple,stable and highly flexible SCG and pulse compression solutions for state-of-the-art ytterbium laser technology.Sheng Zhang Zongyuan Fu Bingbing Zhu Guangyu Fan Yudong Chen Shunjia Wang Yaxin Liu Andrius Baltuska Cheng Jin Chuanshan Tian Zhensheng Tao 2021Light(Science & Applications)2021,10,4:3
5Polyamine oxidase 3 is involved in salt tolerance at the germination stage in rice显示文摘Soil salinity inhibits seed germination and reduces seedling survival rate,resulting in significant yield reductions in crops.Here,we report the identification of a polyamine oxidase,OsPAO3,conferring salt tolerance at the germination stage in rice(Oryza sativa L.),through map-based cloning approach.OsPAO3 is up-regulated under salt stress at the germination stage and highly expressed in various organs.Overexpression of OsPAO3 increases activity of polyamine oxidases,enhancing the polyamine content in seed coleoptiles.Increased polyamine may lead to the enhance of the activity of ROS-scavenging enzymes to eliminate over-accumulated H;O;and to reduce Na;content in seed coleoptiles to maintain ion homeostasis and weaken Na;damage.These changes resulted in stronger salt tolerance at the germination stage in rice.Our findings not only provide a unique gene for breeding new salt-tolerant rice cultivars but also help to elucidate the mechanism of salt tolerance in rice.Guangyu Liu Wanxia Jiang Lei Tian Yongcai Fu Lubin Tan Zuofeng Zhu Chuanqing Sun Fengxia Liu 2022Journal of Genetics and Genomics2022,49,5:2
6Modeling of Spatial Distributions of Farmland Density and Its Temporal Change Using Geographically Weighted Regression Model显示文摘This study used spatial autoregression(SAR)model and geographically weighted regression(GWR)model to model the spatial patterns of farmland density and its temporal change in Gucheng County,Hubei Province,China in 1999 and 2009,and discussed the difference between global and local spatial autocorrelations in terms of spatial heterogeneity and non-stationarity.Results showed that strong spatial positive correlations existed in the spatial distributions of farmland density,its temporal change and the driving factors,and the coefficients of spatial autocorrelations decreased as the spatial lag distance increased.SAR models revealed the global spatial relations between dependent and independent variables,while the GWR model showed the spatially varying fitting degree and local weighting coefficients of driving factors and farmland indices(i.e.,farmland density and temporal change).The GWR model has smooth process when constructing the farmland spatial model.The coefficients of GWR model can show the accurate influence degrees of different driving factors on the farmland at different geographical locations.The performance indices of GWR model showed that GWR model produced more accurate simulation results than other models at different times,and the improvement precision of GWR model was obvious.The global and local farmland models used in this study showed different characteristics in the spatial distributions of farmland indices at different scales,which may provide the theoretical basis for farmland protection from the influence of different driving factors.ZHANG Haitao GUO Long CHEN Jiaying FU Peihong GU Jianli LIAO Guangyu 2014Chinese Geographical Science2014,24,2:2
7Selectively Chemocatalytic Conversion of Fructose to 1,2-Propylene Glycol over Ru-WOx/Hydroxyapatite Catalyst显示文摘The conversion of fructose to 1,2-propylene glycol(PG)is an important process from cellulosic biomass to high-value added chemicals.Herein,Ru-WOx/hydroxyapatite(HAP)catalyst was employed for this reaction and reached up to 91.3%yield of PG at 180℃,1 MPa initial hydrogen for 8 h in water.On this catalyst,Ru and WOx were highly dispersed on HAP support and they interacted with each other to form a special catalytic center.The lack of isolated Ru or RuW alloy site led to a moderate activity for hydrogenolysis and hindered the further conversion of PG to propanol.The weak basic HAP support efficiently prevented the humin formation.This precisely controlled catalyst has potential in green PG production.Chuang Li Guangyue Xu Xiang Zhang Yao Fu 2020Chinese Journal of Chemistry2020,38,5:2
8General Formulations of Global Co-seismic Deformations Caused by an Arbitrary Dislocation in a Spherically Symmetric Earth Model-Applicable to Deformed Earth Surface and Space-Fixed Point显示文摘Sun Wenke Okubo S Fu Guangyu 2009Geophysical Journal International2009,177,3:1
9Co-seismic Coulomb stress changes on the northern Tanlu fault zone caused by the Tohoku-Oki M_(W)9.0 earthquake显示文摘Based on the spherical earth dislocation theory and a fault slip model of the Tohoku-Oki M_(W)9.0 earthquake,the co-seismic Coulomb failure stress changes(ΔCFS)on the northern Tanlu fault zone at depths of 0–40 km are calculated.By comparing two sets of results from the spherical earth dislocation theory and the semi-infinite space one,the effect of earth curvature on the calculation results is analyzed quantitatively.First,we systematically summarize previous researches related to the northern Tanlu fault zone,divide the fault zone as detailed as possible,give the geometric parameters of each segment,and establish a segmented structural model of the northern Tanlu fault zone.Second,we calculate the Coulomb stress changes on the northern Tanlu fault zone by using the spherical earth dislocation theory.The result shows the Coulomb stress changes are no more than 0.003 MPa,which proves the great earthquake did not significantly change the stress state of the fault zone.Finally,we quantitatively analyze the disparities between the results of semi-infinite space dislocation theory and the spherical earth one.The average disparity between them is about 7.7%on the northern Tanlu fault zone and is 16.8%on the Fangzheng graben,the maximum disparity on this graben reaches up to 25.5%.It indicates that the effect of earth curvature can not be ignored.So it’s necessary to use the spherical earth dislocation theory instead of the semi-infinite space one to study the Coulomb stress change in the far field.Fei Chen Tai Liu Yawen She Xing Huang Guangyu Fu 2020Earthquake Science2020,33,1:1
10Far-field deformations caused by the 2004 Sumatra earthquake显示文摘2004 苏门答腊地震在四川云南区域引起的理论水平排水量根据一个球形的脱臼理论被计算了,地震差错 model.The 重新适合理论排水量与在 situ.On 的 GPS 观察基本上一致的表演这个基础,我们计算了co地震的排水量,紧张,包括中国大陆和附近,严肃的变化和整个地球的大地水准面由这地震引起了。Guangyu Fu Wenke Sun 2010Geodesy and Geodynamics2010,1,1:1
11Advances in the research and application of neurokinin-1 receptor antagonists显示文摘Recently,the substance P(SP)/neurokinin-1 receptor(NK-1R)system has been found to be involved in various human pathophysiological disorders including the symptoms of coronavirus disease 2019(COVID-19).Besides,studies in the oncological field have demonstrated an intricate correlation between the upregulation of NK-1R and the activation of SP/NK-1R system with the progression of multiple carcinoma types and poor clinical prognosis.These findings indicate that the modulation of SP/NK-1R system with NK-1R antagonists can be a potential broad-spectrum antitumor strategy.This review updates the latest potential and applications of NK-1R antagonists in the treatment of human diseases and cancers,as well as the underlying mechanisms.Furthermore,the strategies to improve the bioavailability and efficacy of NK-1R antagonist drugs are summarized,such as solid dispersion systems,nanonization,and nanoencapsulation.As a radiopharmaceutical therapeutic,the NK-1R antagonist aprepitant was originally developed as radioligand receptor to target NK-1R-overexpressing tumors.However,combining NK-1R antagonists with other drugs can produce a synergistic effect,thereby enhancing the therapeutic effect,alleviating the symptoms,and improving patients’quality of life in several diseases and cancers.Xiangyu HONG Junjie MA Shanshan ZHENG Guangyu ZHAO Caiyun FU 2024Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)2024,25,2:0
12New Discovery of the Devonian Orthoclase Granite of Nenjiang–Heihe Structural belt, China and its Zircon U-Pb Data显示文摘Objective The Nenjiang–Heihe structural belt is located in the eastern Xing’anling Mongolian Orogenic Belt between the Songnen block and Xiang’an block.This structural belt has long been the focus of geological scholars(Miao Laicheng et al.,2003;Liang Chenyue et al.,2011;Li Chao et al.,2017),which has complex geological condition,YANG Fan NA Fuchao ZHANG Guangyu WANG Yan FU Junyu SUN Wei CHEN Jingsheng LI Bin LIU Miao PANG Xuejiao SHI Yi SHI Lu 2018Acta Geologica Sinica(English Edition)2018,92,2:0
13CACA Guidelines for Holistic Integrative Management of Breast Cancer显示文摘Purpose:Breast cancer is now the most common malignant tumor worldwide.About one-fourth of female cancer patients all over the world sufer from breast cancer.And about one in six female cancer deaths worldwide is caused by breast cancer.In terms of absolute numbers of cases and deaths,China ranks frst in the world.The CACA Guidelines for Holistic Integrative Management of Breast Cancer were edited to help improve the diagnosis and comprehensive treatment in China.Methods:The Grading of Recommendations Assessment,Development and Evaluation(GRADE)was used to classify evidence and consensus.Results:The CACA Guidelines for Holistic Integrative Management of Breast Cancer include the epidemiology of breast cancer,breast cancer screening,breast cancer diagnosis,early breast cancer treatment,advanced breast cancer treatment,follow-up,rehabilitation,and traditional Chinese medicine treatment of breast cancer patients.Conclusion:We to standardize the diagnosis and treatment of breast cancer in China through the formulation of the CACA Guidelines.Jiong Wu Daiming Fan Zhimin Shao Binghe Xu Guosheng Ren Zefei Jiang Yongsheng Wang Feng Jin Jin Zhang Qingyuan Zhang Fei Ma Jinli Ma Zhonghua Wang Shusen Wang Xiaojia Wang Shu Wang Haibo Wang Tao Wang Xiang Wang Jing Wang Jia Wang Biyun Wang Li Fu Hongyuan Li Yehui Shi Lu Gan Yunjiang Liu Jian Liu Zhenzhen Liu Qiang Liu Qiang Sun Wenwu Cheng Keda Yu Zhongsheng Tong Xinhong Wu Chuangui Song Jianguo Zhang Jian Zhang Junjie Li Bin Li Man Li Huiping Li Wentao Yang Hongjian Yang Benlong Yang Hong Bu Juping Shen Zhenzhou Shen Yiding Chen Ceshi Chen Da Pang Zhimin Fan Ying Zheng Xiaoli Yu Guangyu Liu Xichun Hu Yiqun Ling Jinhai Tang Yongmei Yin Cuizhi Geng Peng Yuan Yajia Gu Cai Chang Xuchen Cao Yuan Sheng Yuanxi Huang Jian Huang Weijun Peng Xiaohua Zeng Yuntao Xie Ning Liao Committee of Breast Cancer Society,Chinese Anti-Cancer Association 2022Holistic Integrative Oncology2022,1,1:0
14Co-seismic strain changes of Wenchuan Mw7.9 earthquake recorded by borehole strainmeters on Tibetan plateau显示文摘Co-seismic strain changes of the Wenchuan Mw7.9 earthquake recorded with three four-component borehole strainmeters showed NW-SE and roughly EW extensions, respectively, at two locations in the interior and northern part of Tibetan plateau, and NS shortening at a location south of the epicenter, in agreement with the tectonic stress field of this region. The observed values of as much as 10-7 are, however, larger than theoretical values obtained with half-space and spherical-earth dislocation theories, implying the existence of other effects, such as local crustal structure and initial stress.Fu Guangyu Shen Xuzhang Fukuda Yoichi Gao Shanghua Yoshii Satoshi 2011Geodesy and Geodynamics2011,2,3:0
15Lithospheric Equilibrium and Anisotropy around the 2021 Yangbi Ms 6.4 Earthquake in Yunnan,China显示文摘Using the gravity/GNSS data of 318 stations observed in 2020,this paper optimizes the Bouguer and free-air gravity anomalies around the 2021 Yangbi Ms 6.4 Earthquake,inverses the lithospheric density structure of the focal area,and obtains the distribution of isostatic additional force borne by the lithosphere.The results show that the Bouguer gravity anomaly in western Yunnan varies from-120 to-360 m Gal.As a whole the anomalies are large in the north and small in the south,and the value in the source area of the 2021 Yangbi Ms 6.4 Earthquake is about-260 m Gal.Significant lateral differences indicates that the crust around the great earthquake does not belong to a solid and stable tectonic unit.The lithosphere in the source area is basically in equilibrium,indicating that the occurrence of the great event is not relative to the lithospheric equilibrium,but to the differential movement of the crust in the horizontal direction.In addition,we obtain the teleseismic SKS phases of 51 stations.As a whole,the polarization direction of fast wave in western Yunnan is approximately vertical to the maximum gradient change direction of regional Bouguer gravity anomaly that reflects the change of Moho.Guangyu Fu Zhenyu Wang Jingsong Liu Yun Wang 2023Journal of Earth Science2023,34,4:0
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