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| 1 | Progress in China's Unconventional Oil & Gas Exploration and Development and Theoretical Technologies显示文摘The new century has witnessed a strategic breakthrough in unconventional oil & gas.Hydrocarbon accumulated in micro-/nano-scale pore throat shale systems has become an important domain that could replace current oil & gas resources.Unconventional oil & gas plays an increasingly important role in our energy demand.Tight gas,CBM,heavy oil and asphaltic sand have served as a key domain of exploration & development,with tight oil becoming a 'bright spot' domain and shale gas becoming a 'hotspot' domain.China has made great breakthroughs in unconventional oil & gas resources,such as tight gas,shale gas,tight oil and CBM,and great progress in oil shale,gas hydrate,heavy oil and oil sand.China has an estimated(223-263)×10~8t of unconventional oil resources and(890-1260)×l0^(12)m^3 of gas resources.China has made a breakthrough for progress in unconventional oil & gas study.New progress achieved in fine-grained sedimentary studies related to continental open lacustrine basin large-scale shallow-water delta sand bodies,lacustrine basin central sandy clastic flow sediments and marine-continental fine-grained sediments provide a theoretical basis for the formation and distribution of basin central reservoir bodies.Great breakthroughs have been made in unconventional reservoir geology in respect of research methodology & technology,multi-scale data merging and physical simulation of formation conditions.Overall characterization of unconventional reservoirs via multi-method and multi-scale becomes increasingly popular and facilitates the rapid development of unconventional oil & gas geological theory,method and technology.The formation of innovative,continuous hydrocarbon accumulation theory,the establishment of the framework of the unconventional oil & gas geological theory system,and the determination of the implications,geological feature,formation mechanism,distribution rule and core technology of unconventional oil& gas geological study lays a theoretical foundation for extensive unconventional oil & gas exploration and development.Theories and technologies of unconventional oil & gas exploration and development developed rapidly,including some key evaluation techniques such as 'sweet spot zone' integrated evaluation and a six-property evaluation technique that uses hydrocarbon source,lithology,physical property,brittleness,hydrocarbon potential and stress anisotropy,and some key development &engineering technologies including micro-seismic monitoring,horizontal drilling & completion and 'factory-like' operation pattern, 'man-made reservoir' development,which have facilitated the innovative development of unconventional oil & gas.These breakthroughs define a new understanding in four aspects:①theoretical innovation;② key technologies;③ complete market mechanism and national policy support;and ④ well-developed ground infrastructure,which are significant for prolonging the life cycle of petroleum industry,accelerating the upgrade and development of theories and technologies and altering the global traditional energy structure. | ZOU Caineng YANG Zhi ZHU Rukai ZHANG Guosheng HOU Lianhua WU Songtao TAO Shizhen YUAN Xuanjun DONG Dazhong WANG Yuman WANG Lan HUANG Jinliang WANG Shufang | 2015 | Acta Geologica Sinica(English Edition)2015,89,3: | 27 |
| 2 | Mesenchymal stem cell transplantation in tight-skin mice identifies miR-151-5p as a therapeutic target for systemic sclerosis显示文摘全身的硬化(SSc ) ,自体免疫的疾病,可以由于 IL4R/mTOR 小径的激活引起重要 osteopenia。间充质的干细胞移植(MSCT ) 能改善在经由导致有免疫力的忍耐的 SSc 的有免疫力的混乱。然而, MSCT 是否在 SSc 救 osteopenia 显型,是未知的。这里,我们证明 MSCT 能有效地改善在由 rescuing 的 SSc 老鼠的 osteopenia 损害了接受者骨头髓 MSC 的系区别。机械学地,我们证明施主 MSC 在 SSc 老鼠把 miR-151-5p 转移到接受者骨头髓 MSC 禁止 IL4R 表示,这样提高 osteogenic 区别和还原剂 adipogenic 区别的 downregulating mTOR 小径激活。而且, miR-151-5p 的全身的交货能够在 SSc 老鼠的 rescuing osteopenia,损害骨头髓 MSC,紧密的皮,和有免疫力的混乱,建议那 miR-151-5p 可以是为 SSc 治疗的一个特定的目标。我们发现在把 miRNAs 转移到接受者干细胞改善识别 MSCT 的一个以前未被认出的角色经由 rescuing 的 osteopenia 一条非编码的 RNA 小径。 | Chider Chen Dandan Wang Alireza Moshaverinia Dawei Liu Xiaoxing Kou Wenjing Yu Ruili Yang Lingyun Sun Songtao Shi | 2017 | Cell Research2017,27,4: | 26 |
| 3 | Surveillance, epidemiology, and pathogen spectrum of hand, foot, and mouth disease in mainland of China from 2008 to 2017显示文摘Hand,foot and mouth disease(HFMD)was reported in May 2,2008 to be the 38th legally notifiable disease in China's National Notifiable Disease Reporting and Surveillance System.In order to solve the infection,an extensive three-level HFMD surveillance laboratory network was established.In this study,the framework of that network is assessed and the incidence of HFMD in China from 2008 to 2017 is reported using a descriptive epidemiologic method.During these 10 years,a series of techniques have been widely applied in all the network laboratories.Using information and material obtained from the network,a virus bank and database containing 18,238 viruses were established.Nationally,18,184,834 HFMD cases,including 152,436 severe cases and 3633 fatal cases,were reported in mainland of China.The average annual incidence in the population was 133.99/100,000 people,with a maximum incidence of 205.06/100,000 people in 2014.The incidence and mortality rates of HFMD were the highest in children aged 1–2 years.The numbers of reported cases fluctuated,with a high incidence observed every 2 years.An overall increase in the number of reported cases was also observed throughout the study period.Despite this,the incidence of severe cases and the mortality rate have been decreasing.High-risk regions are located in southern,eastern,and central China.Two peaks of HFMD infection cases were observed annually except for Northeast China.Different proportions of enterovirus serotypes were observed during the studied years.The predominant enterovirus varies from year to year,but the disease severity is always closely related to the specific serotype.EV-A71 is the dominant serotype associated with severe and fatal cases,with constituent ratios of 70.03%and 92.23%,respectively.The studied highly sensitive and efficient surveillance network provides information that is critical for prevention and control of the disease.It is extremely necessary and important to continuously conduct extensive virological surveillance for HFMD. | Tianjiao Ji Taoli Han Xiaojuan Tan Shuangli Zhu Dongmei Yan Qian Yang Yang Song Aili Cui Yan Zhang Naiying Mao Songtao Xu Zhen Zhu Dandan Niu Yong Zhang Wenbo Xu | 2019 | Biosafety and Health2019,1,1: | 26 |
| 4 | Circulating apoptotic bodies maintain mesenchymal stem cell homeostasis and ameliorate osteopenia via transferring multiple cellular factors显示文摘 | Dawei Liu Xiaoxing Kou Chider Chen Shiyu Liu Yao Liu Wenjing Yu Tingting Yu Ruili Yang Runci Wang Yanheng Zhou Songtao Shi | 2018 | Cell Research2018,28,9: | 17 |
| 5 | Achieve Personalized Anonymity Through Query Blocks Exchanging显示文摘In cyberspace security,the privacy in location-based services(LBSs) becomes more critical. In previous solutions,a trusted third party(TTP) was usually employed to provide disturbance or obfuscation,but it may become the single point of failure or service bottleneck. In order to cope with this drawback,we focus on another important class,establishing anonymous group through short-range communication to achieve k-anonymity with collaborative users. Along with the analysis of existing algorithms,we found users in the group must share the same maximum anonymity degree,and they could not ease the process of preservation in a lower one. To cope with this problem,we proposed a random-QBE algorithm to put up with personalized anonymity in user collaboration algorithms,and this algorithm could preserve both query privacy and location privacy. Then we studied the attacks from passive and active adversaries and used entropy to measure user's privacy level. Finally,experimental evaluations further verify its effectiveness and efficiency. | Chunguang Ma Lei Zhang Songtao Yang Xiaodong Zheng Pinhui Ke | 2016 | China Communications2016,13,11: | 13 |
| 6 | Evidence of the Near-Source Accumulation of the Tight Sandstone Gas in Northern Ordos Basin,North-Central China显示文摘The tight sandstone gas in Upper Paleozoic Formation of the northern Ordos Basin is a typical giant unconventional tight gas province. Evidences from geochemistry, reservoir geology and paleotectonic setting all verify that the present-day tight sandstone gas accumulation in the Ordos Basin is the result of near-source accumulation. The evidences are listed as following: tight sandstone gas is mainly distributed in the area with high gas-generating strength; gas composition was not subjected to fractionation; gas saturation significantly decreases with the distance away from the source rocks; gas isotopes suggest their origin is the same and maturity is consistent with in-place source rocks; reservoirs have experienced three types of densification digenesis, including intense compaction, siliceous cementation and calcareous cementation, which took place before the formation of a large amount of tight sandstone gas, forming tight reservoirs with low porosity and permeability, fine pore throat and great capillary resistance; the paleo-structural gradient ratio is small from the main hydrocarbon generation period to present. It is indicated the present distribution of tight sandstone gas in the northern Ordos Basin is the result of near-source and short-distance migration and accumulation. | YANG Zhi LI Qiyan WU Songtao LIN Senhu LIU Xinshen | 2017 | Acta Geologica Sinica(English Edition)2017,91,5: | 13 |
| 7 | Characteristics and Origin of Tight Oil Accumulations in the Upper Triassic Yanchang Formation of the Ordos Basin,North-Central China显示文摘The Upper Triassic oil accumulations in the Ordos Basin is the most successful tight oil play in China,with average porosity values of less than 10% and permeability values below 1.0 mD.This study investigated the geological characteristics and origin of the tight oil accumulations in the Chang 6 member of the Upper Triassic Yanchang Formation in the Shanbei area based on over 50,000 petrological,source-rock analysis,well logging and production data.The tight oil accumulation of the Chang 6 member is distributed continuously in the basin slope and the centre of the basin.The oilwater relationships are complex.Laumontite dissolution pores are the most important storage spaces,constituting 30%-60% of total porosity and showing a strong positive relationship with oil production.The pore-throat diameter is less than 1 μm,and the calculated critical height of the oil column is much larger than the tight sand thickness,suggesting that the buoyancy was probably of limited importance for oil migration.The pressure difference between the source rocks and sandstone reservoirs is inferred to have provided driving force for hydrocarbon migration.Two factors of source-reservoir configuration and laumontite dissolution contributed to the formation of the Chang 6 tight oil accumulations.Intense hydrocarbon generation and continuous sand bodies close to the hydrocarbon kitchen are the foundation for the large-scale oil distribution.Dissolution of feldspar-laumontite during the process of organic matter evolution generated abundant secondary pores and improved the reservoir quality. | WU Songtao ZOU Caineng ZHU Rukai YAO Jingli TAO Shizhen YANG Zhi ZHAI Xiufen CUI Jingwei LIN Senhu | 2016 | Acta Geologica Sinica(English Edition)2016,90,5: | 13 |
| 8 | Methods for Shale Gas Play Assessment: A Comparison between Silurian Longmaxi Shale and Mississippian Barnett Shale显示文摘Based on field work, organic geochemical analyses and experimental testing, a six-property assessment method for shale gas is proposed. These six properties include organic matter properies, lithofacies, petrophysical properties, gas content, brittleness and local stress field. Due to the features of continuous distribution over a large area and low resource abundance in shale plays, a sweet spot should have these following properties:(a) TOC>2%;(b) brittle minerals content(>40%) and clay minerals(<30%);(c) Ro(>1.1%);(d) porosity(>2%) and permeability(>0.000 1 m D), and(e) effective thickness(30–50 m). Applying these criteria in the Sichuan Basin, the Silurian Longmaxi shale consists of four prospecting sweet spots, including blocks of Changning, Weiyuan, Zhaotong and Fushun-Yongchuan. Although these four blocks have some similarities, different features were usually observed. After comprehensive analyses using the six-property assessment method, the Fushun-Yongan Block ranks the most favorable sweet spot, followed by the Weiyuan Block. For the other two blocks, the Changning Block is better than the Zhaotong Block. By comparing with the Mississippian Barnett shale, characteristics that are crucial for a high-yielding in the Sichuan Basin include a high content of organic matter(TOC>2.5%), a moderate thermal maturity(Ro=0.4%–2%), a high content of brittle minerals(quartz: 30%–45%), a high gas content(>2.5 m3?t-1), and types I and II1 kerogen. | Songqi Pan Caineng Zou Zhi Yang Dazhong Dong Yuman Wang Shufang Wang Songtao Wu Jinliang Huang Qun Liu Dule Wang Ziyuan Wang | 2015 | Journal of Earth Science2015,26,2: | 10 |
| 9 | Shale Gas Formation and Occurrence in China: An Overview of the Current Status and Future Potential显示文摘Shale gas is one of the most promising unconventional resources both in China and abroad. It is known as a form of self-contained source-reservoir system with large and continuous dimensions. Through years of considerable exploration efforts, China has identified three large shale gas fields in the Fuling, Changning and Weiyuan areas of the Sichuan Basin, and has announced more than 540 billion m^3 of proven shale gas reserves in marine shale systems. The geological theories for shale gas development have progressed rapidly in China as well. For example, the new depositional patterns have been introduced for deciphering the paleogeography and sedimentary systems of the Wufeng shale and Longmaxi shale in the Sichuan Basin. The shale gas storage mechanism has been widely accepted as differing from conventional natural gas in that it is adsorbed on organic matter or a mineral surface or occurs as free gas trapped in pores and fractures of the shale. Significant advances in the techniques of microstructural characterization have provided new insights on how gas molecules are stored in micro- and nano-scale porous shales. Furthermore, newly-developed concepts and practices in the petroleum industry, such as hydraulic fracturing, microseismic monitoring and multiwell horizontal drilling, have made the production of this unevenly distributed but promising unconventional natural gas a reality. China has 10–36 trillion m^3 of promising shale gas among the world's whole predicted technically recoverable reserves of 206.6 trillion m^3. China is on the way to achieving its goal of an annual yield of 30–50 billion m^3 by launching more trials within shale gas projects. | ZOU Caineng YANG Zhi PAN Songqi CHEN Yanyan LIN Senhu HUANG Jinliang WU Songtao DONG Dazhong WANG Shufang LIANG Feng SUN Shasha HUANG Yong WENG Dingwei | 2016 | Acta Geologica Sinica(English Edition)2016,90,4: | 9 |
| 10 | A subset of IL-17+ mesenchymal stem cells possesses anti-Candida albicans effect显示文摘骨头髓间充质的干细胞(MSC ) 与深刻 immunomodulatory 性质包括出生后的祖先房间的一张异构的人口,例如 Foxp3 + 的 upregulation 规章的 T 房间(Tregs ) 和 Th17 房间的 downregulation。然而,它是未知的是否不同 MSC subpopulations 拥有 immunomodulatory 的一样的范围功能。这里,我们证明生产 IL-17 的单个导出殖民地的 MSC 的一个子集与体积 MSC 人口不同因为它不能 upregulate Tregs, downregulate Th17 房间,或改善在一只大肠炎老鼠的疾病显型当模特儿。机械学地,我们揭示那 IL-17,由这些 MSC 生产了,激活 NFκ B 小径到 downregulate TGF-β在 MSC 的生产,导致基于 MSC 的 immunomodulation 的废除。而且,我们显示出那 NFκ B 能直接绑在 TGF-β倡导者区域将调整 TGF-β在 MSC 的表示。而且,这些 IL-17 + MSC 在 C 在 vitro 和治疗学的效果拥有 anti-Candida albicans 生长效果。感染 albicans 的老鼠。在摘要,这研究证明 MSC 包含能够禁止 C 的一个 IL-17 + 子集。albicans 生长,而是 attenuating 经由 NFκ 的基于 MSC 的免疫力的抑制; TGF-β 的调停 B 的 downregulation;。 | Ruili Yang Yi Liu Peyman Kelk Cunye Qu Kentaro Akiyama Chider Chen Ikiru Atsuta WanJun Chen Yanheng Zhou Songtao Shi | 2013 | Cell Research2013,23,1: | 8 |
| 11 | “Exploring petroleum inside source kitchen”: Shale oil and gas in Sichuan Basin显示文摘The Sichuan Basin is rich in shale oil and gas resources,with favorable geological conditions that the other shale reservoirs in China cannot match.Thus,the basin is an ideal option for fully'exploring petroleum inside source kitchen'with respect to onshore shale oil and gas in China.This paper analyzes the characteristics of shale oil and gas resources in the United States and China,and points out that maturity plays an important role in controlling shale oil and gas composition.US shale oil and gas exhibit high proportions of light hydrocarbon and wet gas,whereas Chinese marine and transitional shale gas is mainly dry gas and continental shale oil is generally heavy.A comprehensive geological study of shale oil and gas in the Sichuan Basin reveals findings with respect to the following three aspects.First,there are multiple sets of organic-rich shale reservoirs of three types in the basin,such as the Cambrian Qiongzhusi Formation and Ordovician Wufeng Formation-Silurian Longmaxi Formation marine shale,Permian Longtan Formation transitional shale,Triassic Xujiahe Formation lake-swamp shale,and Jurassic lacustrine shale.Marine shale gas enrichment is mainly controlled by four elements:Deep-water shelf facies,moderate thermal evolution,calcium-rich and silicon-rich rock association,and closed roof/floor.Second,the'sweet section'is generally characterized by high total organic carbon,high gas content,large porosity,high brittle minerals content,high formation pressure,and the presence of lamellation/bedding and natural microfractures.Moreover,the'sweet area'is generally characterized by very thick organic-rich shale,moderate thermal evolution,good preservation conditions,and shallow burial depth,which are exemplified by the shale oil and gas in the Wufeng-Longmaxi Formation,Longtan Formation,and Daanzhai Member of the Ziliujing Formation.Third,the marine,transitional,and continental shale oil and gas resources in the Sichuan Basin account for 50%,25%,and 30%of the respective types of shale oil and gas geological resources in China,with great potential to become the cradle of the shale oil and gas industrial revolution in China.Following the'Conventional Daqing-Oil'(i.e.,the Daqing oilfield in the Songliao Basin)and the'Western Daqing-Oil&Gas'(i.e.,the Changqing oilfield in the Ordos Basin),the Southwest oil and gas field in the Sichuan Basin is expected to be built into a'Sichuan-Chongqing Daqing-Gas'in China. | Caineng ZOU Zhi YANG Shasha SUN Qun ZHAO Wenhua BAI Honglin LIU Songqi PAN Songtao WU Yilin YUAN | 2020 | Science China Earth Sciences2020,63,7: | 6 |
| 12 | Maxingxiongting mixture attenuates hypoxia pulmonary arterial hypertension to improve right ventricular hypertrophy by inhibiting the rho-kinase signaling pathway显示文摘OBJECTIVE:To explore the mechanism of Maxingxiongting mixture(MXXTM)on pulmonary hypertension in a rat model established by intraperitoneal injection of monocrotaline solution,smoking and forced swimming.METHODS:A total of 30 male Sprague-Dawley rats were randomly divided into five groups:control group,model group,high-dose of MXXTM group(HM),low-dose of MXXTM group(LM),and fasudil group.The mean pulmonary artery pressure(m PAP)was measured by using a miniature catheter.Lung tissue and right ventricular tissue sections were stained with hematoxylin-eosin.The right ventricle(RV)and left ventricle+septum(LV+S)were weighted.RV/(LV+S)was calculated to reflect the degree of right ventricular hypertrophy.Rho/Rho-kinase signaling pathway key proteins(Rho A,ROCKⅠand ROCKⅡ)in rat right ventricular tissue were measured by Western blot analysis.The levels of serum hypoxia-inducible factor-1α(HIF-1α),vascular endothelial growth factor(VEGF)and the levels of plasma renin activity(PRA),angiotensinⅡ(ANG-Ⅱ),aldosterone(ALD)in rat anticoagulated plasma were all measured by enzyme-linked immunosorbent assay.RESULTS:Compared with the control group,the m PAP and RV/(LV+S)in the model group were significantly increased.Administration of fasudil resulted in a significant decrease of m PAP and RV/(LV+S).In the HM group and LM group,m PAP and RV/(LV+S)were significantly lower than the model group.Compared with the control group,the contents of HIF-1α,VEGF,PRA,ANG-Ⅱand ALD in the model group were significantly increased.The administration of fasudil and high-dose MXXTM significantly reduced the contents of HIF-1α,VEGF,PRA,ANG-II and ALD.Compared with the control group,the expression of Rho A,ROCKⅠand ROCKⅡin the right ventricle of the model group were significantly increased.The administration of fasudil and high-dose MXXTM significantly reduced the expression of Rho A and RockⅡproteins.Our results indicated that high-dose of MXXTM had similar effects on reducing pulmonary artery pressure and improving right ventricular remodeling to fasudil.However,MXXTM was unable to restore parameters above to control levels.CONCLUSIONS:MXXTM attenuates hypoxia pulmonary arterial hypertension to improve right ventricular hypertrophy by inhibiting the Rho-kinase signaling pathway. | An Xing Li Songtao Weng Xiangwen Wang Xian Wu Hao Zhang Xinyue Gao Jian Yang Renxu Peng Bo | 2020 | Journal of Traditional Chinese Medicine2020,40,6: | 4 |
| 13 | Applications of Light Stable Isotopes(C, O, H) in the Study of Sandstone Diagenesis: A Review显示文摘This article reviews the applications of light stable isotope, including carbon, oxygen and hydrogen, in thestudies on origin and formation temperature of authigenic carbonate, quartz and clay minerals. Theoretical knowledge andanalytical methods for major light stable isotopes are introduced in detail. Negative and positive δ^(13)C values indicatesignificant differences on the origin of carbonate cements. The δ^(18)O value is an effective palaeotemperature scale forauthigenic minerals formation. Various fractionation equations between δ^(18)O and temperature are proposed for carbonatecements, quartz cements and clay minerals, whose merit and demerit, applicable conditions are clarified clearly. Clumpedisotope analysis can reconstruct the temperature of carbonate precipitation with no requirement on the δ^(18)O of initial waters,which makes temperature calculation of carbonate cements formation more convenient and accurate. Hydrogen and oxygenisotopes mainly reflect the origin of diagenetic fluid for clay mineral formation, providing reliable evidence for diageneticenvironment analysis. This work aims at helping researchers for better understanding the applications of light stable isotopein sandstone diagenesis. | XI Kelai CAO Yingchang LIN Miruo LIU Keyu WU Songtao YUAN Guanghui YANG Tian | 2019 | Acta Geologica Sinica(English Edition)2019,93,1: | 4 |
| 14 | The separation and recovery of copper(Ⅱ), nickel(Ⅱ), cobalt(Ⅱ), zinc(Ⅱ),and cadmium(Ⅱ) in a sulfate-based solution using a mixture of Versatic 10 acid and Mextral 984H显示文摘We studied the separation and recovery of copper(Ⅱ), nickel(Ⅱ), cobalt(Ⅱ), zinc(Ⅱ), and cadmium(Ⅱ) from magnesium and calcium, using synergistic solvent extraction(SSX) in a typical hydrometallurgical waste solution. A mixture of Versatic 10 acid and Mextral 984 H, diluted with Mextral DT100, was used to obtain fundamental data on p H and distribution isotherms, as well as the kinetics of extraction and stripping. We also investigated the main effects and interactions of common solvent extraction factors: the extraction p H at equilibrium, the temperature, and the extractant concentration. The synergistic effect for extracting metals was confirmed. The results showed that the addition of Mextral 984 H enhanced the separation factors of copper, nickel, cobalt,zinc, and cadmium over magnesium and calcium. Compared with Versatic 10 acid alone, for a mixture of0.5 mol·L^(-1) Versatic 10 acid/0.5 mol·L^(-1)Mextral 984 H, Δp H50 values of copper, nickel, cobalt, zinc, and cadmium were found to be N 2.0, 3.30, 2.85, 0.95, and 1.32 p H units, respectively. The Δp H_(50)(Zn–Mg)and Δp H_(50)(Zn–Ca)values were 3.27 and 2.25, respectively, indicating easy separation and recovery of copper, nickel, zinc, cobalt,and cadmium. The extraction and stripping of copper, cobalt, zinc, and cadmium were fast, with 90% of the metal transferred in 2 min. We next studied whether the metals could be stripped from the extracted liquid selectively in sequence, by using sulfuric acid at different concentrations. The influence of the molecular structure of the oxime and carboxylic acid components upon the synergistic effects was identified by numerical analysis.Excellent separation of copper, nickel, cobalt, and zinc over magnesium and calcium was achieved with this synergistic solvent extraction system. | Yinxuan Qiu Limei Yang Songtao Huang Zhongguang Ji Yan Li | 2017 | Chinese Journal of Chemical Engineering2017,25,6: | 3 |
| 15 | Up-conversion fluorescence biosensor for sensitive detection of CA-125 tumor markers显示文摘Sensitive and specific bioassays of tumor markers are critical for early cancer detection and treatment.In recent years,lanthanide(Ln3+)doped upconversion nanoparticles(UCNPs)have attracted wide attentions in tumor markers detectio n.Herein,we co mbined NaYF4:Yb,Tm and silver nanoparticles,serving as energy donor and receptor,respectively,to form an up-conversion fluorescence based inhibitory tumor marker biosensor system.The tumor marker CA-125 molecules are labeled with silver NPs,and the energy transfer fluorescent signal can be detected between the UCNPs and the silver NP receptors.The biosensor shows good stability,high sensitivity and selectivity in the tumor marker concentration range from 5 to 100 ng/mL,as well as a detection limit of 120 pg/mL.Due to the advantage of ease of fabrication and operation,low cost and high information capacity,this technology holds great potential for the clinical applications. | Jingshi Liu Sai Xu Liheng Sun Songtao Hu Jiao Sun Min Liu Cui Ma Haipeng Liu Ziqing Wang Ying Yang Biao Dong Decheng Hong | 2019 | Journal of Rare Earths2019,37,9: | 3 |
| 16 | Gut microbiota from end-stage renal disease patients disrupt gut barrier function by excessive production of phenol显示文摘End stage renal disease (ESRD), an advanced stage of chronic kidney disease, has received increasing attention as a leading public health problem (Webster et al., 2017). Chronic kidney disease (CKD) and ESRD are invariably accompanied by chronic systemic inflammation which plays central roles in CKD progression (Cachofeiro et al., 2008) and the increased mortality due to cardiovascular disease (Landray et al., 2004). | Xifan Wang Yanling Hao Xiaoxue Liu Shoujuan Yu Weibo Zhang Songtao Yang Zhengquan Yu Fazheng Ren | 2019 | Journal of Genetics and Genomics2019,46,8: | 3 |
| 17 | Analysis and prediction of surface roughness for robotic belt grinding of complex blade considering coexistence of elastic deformation and varying curvature显示文摘Precision prediction of machined surface roughness is challenging facing the robotic belt grinding of complex blade,since this process is accompanied by significant elastic deformation.The resulting poor prediction accuracy,to a great extent,is attributed to the existing prediction model which less considers the dynamics.In this paper,an improved scallop height model is developed to predict and assess the machined surface roughness by taking into account the elastic deformation and the varying curvature of blade,then robotic belt grinding experiments are carried out to evaluate the proposed model from the perspective of surface roughness.Finally factors that influence the scallop height are analyzed,and the suitable empirical equation of surface roughness is proposed to assess and predict the surface quality from the aspect of blade concave and convex surface by adopting the constant scallop height machining. | XU XiaoHu YE SongTao YANG ZeYuan YAN SiJie ZHU DaHu DING Han | 2021 | Science China(Technological Sciences)2021,64,5: | 2 |
| 18 | Boosting Chemodynamic Therapy by the Synergistic Effect of Co‑Catalyze and Photothermal Effect Triggered by the Second Near‑Infrared Light显示文摘In spite of the tumor microenvironments responsive cancer therapy based on Fenton reaction(i.e.,chemodynamic therapy,CDT)has been attracted more attentions in recent years,the limited Fenton reaction efficiency is the important obstacle to further application in clinic.Herein,we synthesized novel FeO/MoS2 nanocomposites modified by bovine serum albumin(FeO/MoS2-BSA)with boosted Fenton reaction efficiency by the synergistic effect of co-catalyze and photothermal effect of MoS2 nanosheets triggered by the second near-infrared(NIR II)light.In the tumor microenvironments,the MoS2 nanosheets not only can accelerate the conversion of Fe3+ions to Fe2+ions by Mo4+ions on their surface to improve Fenton reaction efficiency,but also endow FeO/MoS2-BSA with good photothermal performances for photothermal-enhanced CDT and photothermal therapy(PTT).Consequently,benefiting from the synergetic-enhanced CDT/PTT,the tumors are eradicated completely in vivo.This work provides innovative synergistic strategy for constructing nanocomposites for highly efficient CDT. | Songtao Zhang Longhai Jin Jianhua Liu Yang Liu Tianqi Zhang Ying Zhao Na Yin Rui Niu Xiaoqing Li Dongzhi Xue Shuyan Song Yinghui Wang Hongjie Zhang | 2020 | Nano-Micro Letters2020,12,12: | 2 |
| 19 | Using unmanned aerial vehicles with thermal-image acquisition cameras for animal surveys:a case study on the Sichuan snub-nosed monkey in the Qinling Mountains显示文摘Following significant developments in technology,alternative devices have been applied in fieldwork for animal and plant surveys.Thermal-image acquisition cameras installed on unmanned aerial vehicles(UAVs)have been used in animal surveys in the wilderness.This article demonstrates an example of how UAVs can be used in high mountainous regions,presenting a case study on the Sichuan snub-nosed monkey with a detection rate of 65.19%for positive individual identification.It also presents a model that can prospectively predict population size for a given animal species,which is based on combined initial work using UAVs and traditional surveys on the ground.A great potential advantage of UAVs is significantly shortening survey procedures,particularly for areas with high mountains and plateaus,such as the Himalayas,the Qinghai-Tibet Plateau,Hengduan Mountains,the Yunnan-Gui Plateau and Qinling Mountains in China,where carrying out a traditional survey is extremely difficult,so that species and population surveys,particularly for critically endangered animals,are largely absent.This lack of data has impacted the management of endangered animals as well as the formulation and amendment of conservation strategies. | Gang HE Haitao YANG Ruliang PAN Yewen SUN Pengbin ZHENG Jinghua WANG Xuelin JIN Jingjie ZHANG Baoguo LI Songtao GUO | 2020 | Integrative Zoology2020,15,1: | 2 |
| 20 | Automatic radar antenna scan type recognition based on limited penetrable visibility graph显示文摘To address the problem of the weak anti-noise and macro-trend extraction abilities of the current methods for identifying radar antenna scan type,a recognition method for radar antenna scan types based on limited penetrable visibility graph(LPVG)is proposed.Firstly,seven types of radar antenna scans are analyzed,which include the circular scan,sector scan,helical scan,raster scan,conical scan,electromechanical hybrid scan and two-dimensional electronic scan.Then,the time series of the pulse amplitude in the radar reconnaissance receiver is converted into an LPVG network,and the feature parameters are extracted.Finally,the recognition result is obtained by using a support vector machine(SVM)classifier.The experimental results show that the recognition accuracy and noise resistance of this new method are improved,where the average recognition accuracy for radar antenna type is at least 90%when the signalto-noise ratio(SNR)is 5 dB and above. | LIU Songtao LEI Zhenshuo GE Yang WEN Zhenming | 2021 | Journal of Systems Engineering and Electronics2021,32,2: | 2 |