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31篇 您的检索式:作者名="Song Yuling"
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1Study on the velocity structure of the crust in Southwest Yunnan of the north-south seismic belt—Results from the Menghai-Gengma-Lushui deep seismic sounding profile显示文摘Southwest Yunnan, located in the southern segment of the north-south seismic belt, is one of the regions with strong tectonic movement and seismic activity in China. Study on the characteristics of tectonic setting and deep geophysical field in the region is an important issue in basic science. In 2013, we conducted a 600-km-long Menghai-Gengma-Lushui profile of deep seismic wide-angle reflection/refraction and high-resolution seismic refraction in Southwest Yunnan. In this paper, we use 6 groups of clear intracrustal P-wave phases picked from the seismic record sections of 11 shots to build a velocity structure model of basement and 2D crustal P-wave of the region by using finite difference inversion and ray travel time forward fitting technology. The results show that, from south to north, the crust gradually thickens along the profile and its basement shows a significant lateral heterogeneity. In the vicinity of the Nanting River fault, the basement structure shows the character of alternate depressions and uplifts, and the shallowest basement is about 1.0 km. In the vicinity of Tengchong and Lancang, the basement is about 5.0 km deep. The velocity of the middle and lower crust in the region generally increases with the increasing of depth. At the block boundary and beneath the fault tectonic belt, the velocity contours show apparent irregularity and the P-wave velocity changes sharply. In this region, the Moho gradually deepens from south to north with relatively large lateral undulations. The shallowest point of the Moho is located near Menghai at a depth of about 32.0 km. The deepest point of the Moho is located near Tengchong at a depth of about 40.5 km. Between Gengma and Yongde, the Moho shows significantly fast uplifting and depressing with an amplitude of about 4.0 km. Beneath the Nanting River fault, Longling-Ruili fault, Dayingjiang fault and Tengchong volcano, the basement velocity structure, 2D crustal P-wave velocity structure, distribution of average profile velocity and intracrustal interface spreading also show significant changes from the basement to the top of the Moho, indicating that the crustal velocity and medium physical properties beneath the fault tectonic belt are apparently different from the crustal materials on its both sides, which suggests that these faults should be in a certain scale and may extend to the lower crust or the top of the upper mantle. The earthquakes in the region mainly occurred at a depth of 10–20 km, and the seismic activity is related to the intracrustal medium velocity difference and fault belt distribution. The results can serve as the important data of the crust-mantle structure for the analysis of the deep tectonic setting, earthquake precise positioning, seismogenic structure modeling of the seismic activities in Southwest Yunnan, as well as the important reference for the evaluation of seismic hazard and the planning of earthquake disaster mitigation of this region.WANG ShuaiJun LIU BaoJin ZHANG JianShi LIU BaoFeng DUAN YuLing SONG XiangHui DENG XiaoGuo MA CeJun ZANG YiRan 2015Science China Earth Sciences2015,58,12:13
2Characterizing CO_2 fluxes for growing and non-growing seasons in a shrub ecosystem on the Qinghai-Tibet Plateau显示文摘To assess carbon budget for shrub ecosystems on the Qinghai-Tibet Plateau, CO2flux was measured with an open-path eddy covariance system for an alpine shrub ecosystem during growing and non-growing seasons. CO2 flux dynamics was distinct between the two seasons. During the growing season from May to September, the ecosystem exhibited net CO2uptake from 08:00 to 19:00 (Beijing Standard Time), but net CO2 emission from 19:00 to 08:00.Maximum CO2 uptake appeared around 12:00 with values of 0.71, 1.19, 1.46 and 0.67 g CO2m-2 h-1 for June, July, August and September, respectively. Diurnal fluctuation of CO2 flux showed higher correlation with photosynthetic photon flux density than temperature. The maximum net CO2 influx occurred in August with a value of 247 g CO2 m-2. The total CO2 uptake by the ecosystem was up to 583 g CO2 m-2 for the growing season. During the non-growing season from January to April and from October to December, CO2 flux showed small fluctuation with the largest net CO2 efflux of 0.30 g CO2 m-2 h-1 in April. The diurnal CO2 flux was close to zero during most time of the day, but showed a small net CO2 efflux from 11:00 to 18:00. Diurnal CO2 flux, is significantly correlated to diurnal temperature in the non-growing season. The maximum monthly net CO2 efflux appeared in April, with a value of 105 g CO2 m-2. The total net CO2 efflux for the whole non-growing season was 356 g CO2 m-2.XU Shixiao, ZHAO Xinquan, FU Yuling, ZHAO Liang, LI Yingnian, CAO Guangmin, GU Song, WANG Qinxue & DU Mingyuan Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining 810001, China Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China Graduate School of the Chinese Academy of Sciences, Beijing 100136, China National Institute for Environmental Studies, Tsukuba 305-8569, Japan National Institute for Agro-Environmental Science, Tsukuba 305-8604, Japan 2005Science China Earth Sciences2005,48,z1:12
3Rod-shape inorganic biomimetic mutual-reinforcing MnO2-Au nanozymes for catalysis-enhanced hypoxic tumor therapy显示文摘Biomimetic nanozymes possessing natural enzyme-mimetic activities have been extensively applied in nanocatalytic tumor therapy.However,engineering hybrid biomimetic nanozymes to achieve superior nanozyme activity remained to be an intractable challenge in hypoxic tumors.Herein,a rod-like biomimetic hybrid inorganic MnO2-Au nanozymes are developed,where MnO2 and ultrasmall Au nanoparticles(NPs)are successively deposited on the mesoporous silica nanorod to cooperatively improve the O2 content and thermal sensitivity of hypoxic solid tumors guided by multi-modal imaging.Under the catalyzing of MnO2,the intratumoral H2O2 is decomposed to greatly accelerate O2 generation,which could boost the curative effect of radiation therapy(RT)and further enhance the Au-catalyzed glucose oxidation.Mutually,the Au NPs can steadily and efficiently catalyze the oxidation of glucose in harsh tumor microenvironment,thus sensitizing tumor cells to thermal ablation for mild photothermal therapy and further promoting the catalytic efficiency of MnO2 with the self-supplied H2O2/H+.As a result,this mutual-reinforcing cycle can endow the nanoplatform with accelerated O2 generation,thus alleviating hypoxic environment and further boosting RT effect.Furthermore,acute glucose consuming can induce downregulation expression of heat shock protein(HSP),achieving starvation-promoted mild photothermal therapy.This synthesized hybrid nanozymes proves to be a versatile theranostic agent for nanocatalytic cancer therapy.Lifang Yang Chuchu Ren Min Xu Yilin Song Qianglan Lu Yule Wang Yan Zhu Xinxing Wang Nan Li 2020Nano Research2020,13,8:5
4Precipitation changes in the mid-latitudes of the Chinese mainland during 1960–2014显示文摘Based on daily precipitation data from 163 meteorological stations, this study investigated precipitation changes in the mid-latitudes of the Chinese mainland(MCM) during 1960–2014 using the climatic trend coefficient, least-squared regression analysis, and a non-parametric Mann-Kendall test.According to the effects of the East Asian summer monsoon on the MCM and the climatic trend coefficient of annual precipitation during 1960–2014, we divided the MCM into the western MCM and eastern MCM. The western MCM was further divided into the western MCM1 and western MCM2 in terms of the effects of the East Asian summer monsoon. The main results were as follows:(1) During the last four decades of the 20^(th) century, the area-averaged annual precipitation presented a significant increasing trend in the western MCM, but there was a slight decreasing trend in the eastern MCM, where a seesaw pattern was apparent. However, in the 21^(st) century, the area-averaged annual precipitation displayed a significant increasing trend in both the western and eastern MCM.(2) The trend in area-averaged seasonal precipitation during 1960–2014 in the western MCM was consistent with that in the eastern MCM in winter and spring. However, the trend in area-averaged summer precipitation during1960–2014 displayed a seesaw pattern between the western and eastern MCM.(3) On an annual basis,both the trend in rainstorms and heavy rain displayed a seesaw pattern between the western and eastern MCM.(4) The precipitation intensity in rainstorms, heavy rain, and moderate rain made a greater contribution to changes in the total precipitation than precipitation frequency. The results of this study will improve our understanding of the trends and differences in precipitation changes in different areas of the MCM. This is not only useful for the management and mitigation of flood disasters, but is also beneficial to the protection of water resources across the MCM.HU Yuling WANG Shigong SONG Xuping WANG Jiaxin 2017Journal of Arid Land2017,9,6:4
5Molecularly imprinted stir bar sorptive extraction coupled with high performance liquid chromatography for trace aaalysis of sulfa drugs in complex samples显示文摘XU Zhigang SONG Chaoyong HU Yuling 2011Talanta2011,85,1:1
6NIR-II driven plasmon-enhanced cascade reaction for tumor microenvironment-regulated catalytic therapy based on bio-breakable Au-Ag nanozyme显示文摘Emerging nanozymes with natural enzyme-mimicking catalytic activities have inspired extensive research interests due to their high stability,low cost,and simple preparation,especially in the field of catalytic tumor therapy.Here,bio-breakable nanozymes based on glucose-oxidase(GOx)-loaded biomimetic Au–Ag hollow nanotriangles(Au–Ag–GOx HTNs)are designed,and they trigger an near-infrared(NIR)-II-driven plasmon-enhanced cascade catalytic reaction through regulating tumor microenvironment(TME)for highly efficient tumor therapy.Firstly,GOx can effectively trigger the generation of gluconic acid(H+)and hydrogen peroxide(H2O2),thus depleting nutrients in the tumor cells as well as modifying TME to provide conditions for subsequent peroxidase(POD)-like activity.Secondly,NIR-II induced surface plasmon resonance can induce hot electrons to enhance the catalytic activity of Au–Ag–GOx HTNs,eventually boosting the generation of hydroxyl radicals(•OH).Interestingly,the generated H2O2 and H+can simultaneously induce the degradation of Ag nanoprisms to break the intact triangle nanostructure,thus promoting the excretion of Au–Ag–GOx HTNs to avoid the potential risks of drug metabolism.Overall,the NIR-II driven plasmon-enhanced catalytic mechanism of this bio-breakable nanozyme provides a promising approach for the development of nanozymes in tumor therapy.Min Xu Qianglan Lu Yiling Song Lifang Yang Chuchu Ren Wen Li Ping Liu Yule Wang Yan Zhu Nan Li 2020Nano Research2020,13,8:1
7Study of an ele- vated carbohydrate antigen 19-9 concentration in a large health check-up cohort in China显示文摘Tong Yuling Song Zhenya Zhu Weihua 2013Clinical Chemistry and Laboratory Medicine : CCLM/FESCC2013,51,7:1
8Fiber-in-tube solid-phase microextraction with molecularly imprinted coating for sensitive analysis of antibiotic drugs by high performance liquid chromatography显示文摘Yuling Hu Chaoyong Song Gongke Li 2012Journal of Chromatography A2012,,:1
9Rare earth elements of aeolian deposits in Northern China and their implications for determining the provenance of dust storms in Beijing显示文摘Xiaoping Yang Yongsheng Liu Chaozhu Li Yuling Song Heping Zhu Xindi Jin 2006Geomorphology2006,,4:1
10Effects of Micronutrient Niacin on Treatment Efficiency of Textile Wastewater显示文摘纺织品废水作为 mostdifficultly 要对待的废水之一众所周知。纺织品废水处理效率上的烟碱酸的效果被 1.0 mg 中心点L~的连续增加学习(-1)烟碱酸,水样品的物理、化学的索引例如货到付款,氨和脱氢酶活动,与标准方法每天被分析,并且在废水处理性能的明显的改进被完成。Theexact 结果显示出那:(1 ) 烟碱酸能与是的移动率 signifcantly 改进 COD 移动效率控制系统的至于那些的 1.31 次;(2 ) 在这个试验性的条件下面,烟碱酸的增加没几乎在氨的移动上有效果;(3 ) 烟碱酸的增加能在 130% 改进脱氢酶的活动。它证明纺织品废水处理系统的生物处理性能能可能通过微量元素烟碱酸补充被优化。LIANG Wei HU Hongying GU Xin CHE Yuling WANG Hui GUO Yufeng SONG Yudong 2006Wuhan University Journal of Natural Sciences2006,11,3:1
11Involvement of ERK,Bcl-2 family and cospase-3 in recombinant human activin A- induced apoptosis in A549显示文摘WANG Balding FENG Yuling SONG Xingbo 2009Toxicology2009,258,23:1
12Water stable metal-organic framework packed microcolumn for online sorptive extraction and direct analysis of naproxen and its metabolite from urine sample显示文摘Yuling Hu Chaoyong Song Jia Liao Zelin Huang Gongke Li 2013Journal of Chromatography A2013,,:1
13Moving target defense of routing randomization with deep reinforcement learning against eavesdropping attack显示文摘Eavesdropping attacks have become one of the most common attacks on networks because of their easy implementation. Eavesdropping attacks not only lead to transmission data leakage but also develop into other more harmful attacks. Routing randomization is a relevant research direction for moving target defense, which has been proven to be an effective method to resist eavesdropping attacks. To counter eavesdropping attacks, in this study, we analyzed the existing routing randomization methods and found that their security and usability need to be further improved. According to the characteristics of eavesdropping attacks, which are “latent and transferable”, a routing randomization defense method based on deep reinforcement learning is proposed. The proposed method realizes routing randomization on packet-level granularity using programmable switches. To improve the security and quality of service of legitimate services in networks, we use the deep deterministic policy gradient to generate random routing schemes with support from powerful network state awareness. In-band network telemetry provides real-time, accurate, and comprehensive network state awareness for the proposed method. Various experiments show that compared with other typical routing randomization defense methods, the proposed method has obvious advantages in security and usability against eavesdropping attacks.Xiaoyu Xu Hao Hu Yuling Liu Jinglei Tan Hongqi Zhang Haotian Song 2022Digital Communications and Networks2022,8,3:1
14Hybrid algorithm based on particle swarm optimization and artificial fish swarm algorithm显示文摘Jiang Jingqing Bo Yuling Song Chuyi 2012Lecture Notes in Computer Science2012,7367,:1
15Nonlinear vibration semi-active control of automotive steering using magneto-rheological damper 显示文摘Wang Wei Song Yuling 2012Meccanica2012,47,8:1
16Body weights in Han Chinese populations显示文摘The body weights of 26,954 Han Chinese adults in 67 areas(16,503 in rural areas and 10,451 in urban areas) across China were measured from 2009 to2013.The results showed that in China,the three areas(north China,northeast China,and Jianghuai Plain) were with the greatest body weight.Northwest Han Chinese populations were heavier.Southwestern dialect groups were at the middle level and lighter than northern Han Chinese populations,but were heavier among southern Han Chinese populations.Chinese Han who located in areas of Hangjiahu were the general level,and similar to southwestern dialect groups.The mean values of body weight in Hunan Han and Fujian Han were greater than other Han groups in southern China.Gan dialect groups and Cantonese dialect groups showed the minimum body weightvalue in all Chinese Han groups.Besides,the mean body weight of Hakka was heavier than Gan dialect groups and Cantonese dialect groups which were adjacent to Hakka.Body weight increases with an increase in height,bone diameter,subcutaneous fat on the limbs and trunk,chest circumference,and abdomen circumference.This study revealed that northern Han men were heavier than southern Han men,because the former were taller and had a larger waist circumference as well as thicker subcutaneous fat on their backs.Among women,height,bone diameter of the upper limbs,chest and abdomen circumferences,and subcutaneous fat on the limbs and trunks of northern Han exceeded those of rural southern Han.Consequently,body weight values of northern Han women were higher than those of southern Han women.While a significant difference in these values was found between urban and rural men,no significant difference occurred between urban and rural women.Body weight was associated with age in urban and rural men only in the case of minority groups.However,there was a positive correlation between body weight and age in the majority groups of both urban and rural women.The particular composition of genes involved in body weight traits of Han populations across the country has created a genetic foundation accounting for varying body weights of different Han populations.Environmental factors also play a role.As the Han are widely dispersed,their habitation areas vary according to factors such as topography,temperature,precipitation,humidity,and light.Moreover,labor intensity,food composition,and the intake of various nutrients also differ across Han populations.All of these factors have affected the development of body weight in Han populations living in different locations.Yonglan Li Lianbin Zheng Huanjiu Xi Keli Yu Shunhua Lu Jinyuan Tian Xue Song Jinping Bao Yuling Li Xinghua Zhang Youfeng Wen Fu Ren 2014Chinese Science Bulletin2014,59,35:1
17Involvement of ERK, Bcl-2 family and caspase 3 in recombinant human activin A-induced apoptosis in A549 显示文摘WANG Baiding FENG Yuling SONG Xingbo 2009Toxicology2009,258,23:1
18Evaluation on the safety and efficacy of tirofiban in the treatment of acute coronary syndrome显示文摘SONG Yule 2007Journal of Hua- zhong University of Science and Technology2007,27,2:1
19Load-Balance Policy in Two Level-Cluster File System显示文摘In this paper, we explored a load-balancing algorithm in a cluster file system contains two levels of metadata-server,primary-level server quickly distributestasks to second-level servers depending on the closest load-balancing information. At the same time, we explored a method which accurately reflect I/O traffic and storage of storage-node: computing the heat-value of file, according to which we realized a more logical storage allocation. According to the experiment result, we conclude that this new algorithm shortens the executing time of tasks and improves the system performance compared with other load algorithm.LIU Yuling SONG Weiwei MA Xiaoxue 2006Wuhan University Journal of Natural Sciences2006,11,6:0
20Design and Implementation of Two-Level Metadata Server in Small-Scale Cluster File System显示文摘The reliability and high performance of metadata service is crucial to the store architecture. A novel design of a two-level metadata server file system (TTMFS) is presented, which behaves high reliability and performance. The merits both centralized management and distributed management are considered simultaneously in our design. In this file system, the advanced-metadata server is responsible for manage directory metadata and the whole namespace. The double-metadata server is responsible for maintaining file metadata. And this paper uses the Markov return model to analyze the reliability of the two-level metadata server. The experiment data indicates that the design can provide high throughput.LIU Yuling YU Hongfen SONG Weiwei 2006Wuhan University Journal of Natural Sciences2006,11,6:0
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