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    题名 作者 年代 出处 被引量
1XA23 Is an Executor R Protein and Confers Broad-Spectrum Disease Resistance in Rice显示文摘Chunlian Wang Xiaoping Zhang Yinglun Fan Ying Gao Qinlong Zhu Chongke Zheng Tengfei Qin Yanqiang Li Jinying Che Mingwei Zhang Bing Yang Yaoguang Liu Kaijun Zhao 2015Molecular Plant2015,8,2:55
2Alkaline modification of ZSM-5 catalysts for methanol aromatization: The effect of the alkaline concentration显示文摘ZSM-5 催化剂的物理性质上并且在他们为到 aromatics 变换的甲醇的活动的碱的处理的效果被调查了。一个温和碱的处理(0.2 和 0.3 mol/L NaOH ) 在酸味上没有明显的效果在父母沸石创造了 mesopores。mesopores 的存在为 aromatics 给催化剂更长的一生和更高的选择。有 0.4 mol/L NaOH 的处理减少了 Br 的数字 ? nsted 酸地点由于 dealumination 和 desilication,它导致了更低的释放率。另外,更多的 mesopores 比与温和碱的处理被生产。作为结果,与 0.4 mol/L NaOH 对待的样品的一生是乘父母 ZSM-5 的的几乎五。有更高碱的集中(0.5 mol/L ) 的处理极大地减少了 Br 的数字 ? nsted 酸地点和导致不完全的甲醇变换的 micropores 的数字。当碱对待的催化剂与酸被洗时,一些孔被恢复,为 aromatics 的选择的细微增加被获得。Zhenhao Wei Tengfei Xia Minghui Liu Qingsheng Cao Yarong Xu Kake Zhu Xuedong Zhu 2015Frontiers of Chemical Science and Engineering2015,9,4:18
3Graphene-based Li-ion hybrid supercapacitors with ultrahigh performance显示文摘有一个成长要求让混合 supercapacitor 系统克服存在产生的精力密度限制电的双层电容器(EDLC ) ,在力量与最小的牺牲导致下 generation-II supercapacitors 密度和周期生活。这里,一个先进基于 graphene 的混合系统,由插入 graphene 的 Li4Ti5O12 (LTO ) 组成合成阳极(G-LTO ) 和三维的多孔的 graphene 蔗糖阴极,为两个都联合 Li 离子电池(精力来源) 和 supercapacitors (力量来源) 的好处的目的被制作了。基于 Graphene 的材料关于混合 supercapacitor 的高效在两个电极起一个重要作用。例如,与 175Kai Leng Fan Zhang Long Zhang Tengfei Zhang Yingpeng Wu Yanhong Lu Yi Huang Yongsheng Chen 2013Nano Research2013,6,8:15
4Sinomenine ester derivative inhibits glioblastoma by inducing mitochondria-dependent apoptosis and autophagy by PI3K/AKT/mTOR and AMPK/mTOR pathway显示文摘Glioblastoma multiforme(GBM)in the central nervous system is the most lethal advanced glioma and currently there is no effective treatment for it.Studies of sinomenine,an alkaloid from the Chinese medicinal plant,Sinomenium acutum,showed that it had inhibitory effects on several kinds of cancer.Here,we synthesized a sinomenine derivative,sino-wcj-33(SW33),tested it for antitumor activity on GBM and explored the underlying mechanism.SW33 significantly inhibited proliferation and colony formation of GBM and reduced migration and invasion of U87 and U251 cells.It also arrested the cell cycle at G2/M phase and induced mitochondria-dependent apoptosis.Differential gene enrichment analysis and pathway validation showed that SW33 exerted anti-GBM effects by regulating PI3 K/AKT and AMPK signaling pathways and significantly suppressed tumorigenicity with no obvious adverse effects on the body.SW33 also induced autophagy through the PI3 K/AKT/mTOR and AMPK/mTOR pathways.Thus,SW33 appears to be a promising drug for treating GBM effectively and safely.Xiangjin Zheng Wan Li Huanli Xu Jinyi Liu Liwen Ren Yihui Yang Sha Li Jinhua Wang Tengfei Ji Guanhua Du 2021Acta Pharmaceutica Sinica B2021,11,11:15
5Effect of barium sulfate modification on the SO2 tolerance of V2O5/TiO2 catalyst for NH3-SCR reaction显示文摘Sulfur poisoning of V_2O_5/BaSO_4–TiO_2(VBT),V_2O_5/WO_3–TiO_2(VWT) and V_2O_5/BaSO_4–WO_3–TiO_2(VBWT) catalysts was performed in wet air at 350℃ for 3 hr,and activities for the selective catalytic reduction of NO_x with NH_3 were evaluated for 200–500℃.The VBT catalyst showed higher NO_x conversions after sulfur poisoning than the other two catalysts.The introduction of barium sulfate contributed to strong acid sites for the as-received catalyst,and eliminated the redox cycle of active vanadium oxide to some extent,which resulted in a certain loss of activity.Readily decomposable sulfate species formed on VBT-S instead of inactive sulfates on VWT-S.These decomposable sulfates increased the number of strong acid sites significantly.Some sulfate species escaped during catalyst preparation and barium sulfate was reproduced during sulfur poisoning,which protects vanadia from sulfur oxide attachment to a great extent.Consequently,the VBT catalyst exhibited the best resistance to sulfur poisoning.Tengfei Xu Xiaodong Wu Xuesong Liu Li Cao Qiwei Lin Duan Weng 2017Journal of Environmental Sciences2017,29,7:14
6Ultrafast and broadband photodetectors based on a perovskite/organic bulk heterojunction for large-dynamic-range imaging显示文摘Organic-inorganic hybrid perovskite(OIHP)photodetectors that simultaneously achieve an ultrafast response and high sensitivity in the near-infrared(NIR)region are prerequisites for expanding current monitoring,imaging,and optical communication capbilities.Herein,we demonstrate photodetectors constructed by OIHP and an organic bulk heterojunction(BHJ)consisting of a low-bandgap nonfullerene and polymer,which achieve broadband response spectra up to 1μm with a highest external quantum efficiency of approximately 54%at 850 nm,an ultrafast response speed of 5.6 ns and a linear dynamic range(LDR)of 191 dB.High sensitivity,ultrafast speed and a large LDR are preeminent prerequisites for the practical application of photodetectors.Encouragingly,due to the high-dynamicrange imaging capacity,high-quality visible-NIR actual imaging is achieved by employing the OIHP photodetectors.We believe that state-of-the-art OIHP photodetectors can accelerate the translation of solution-processed photodetector applications from the laboratory to the imaging market.Chenglong Li Hailu Wang Fang Wang Tengfei Li Mengjian Xu Hao Wang Zhen Wang Xiaowei Zhan Weida Hu Liang Shen 2020Light(Science & Applications)2020,9,1:13
7Short-Impending Earthquake Anomaly Index Extraction of GNSS Continuous Observation Data in Yunnan,Southwestern China显示文摘This paper presents a comprehensive area expansion prediction index method to apply GNSS for short-impending prediction of earthquakes. Based on continuous GNSS observation data from Yunnan Province, a displacement field was detected after data cycle-slip repair using precision data processing software and geophysical field effect model correction. The Yunnan area was divided into 56 grid cells for displacement field interpolation to obtain a more uniform displacement field and a strain field variation time series. The pre-earthquake response of each grid-cell expansion time series was evaluated and synthesized to extract a short-impending earthquake anomaly identification index. The results show that this index indicated occurrence times and hypocenter for earthquakes of magnitude M≥5. Fourteen earthquakes were predicted accurately, and there were five false reports. This index can therefore be used for the short-impending prediction of earthquakes.Min Hong Desheng Shao Tengfei Wu Shuangxi Zhang Yong Zhang Lingli Wang Xiaodong Qian 2018Journal of Earth Science2018,29,1:13
8Patterns,magnitude,and controlling factors of hydraulic redistribution of soil water by Tamarix ramosissima roots显示文摘Tamarix spp.(Saltcedar)is a facultative phreatophyte that can tolerate drought when groundwater is not accessed.In addition to deep water uptake,hydraulic redistribution(HR)is another factor contributing to the drought tolerance of Tamarix spp.In this study,data on soil volumetric moisture content(θ),lateral root sap flow,and relevant climate variables were used to investigate the patterns,magnitude,and controlling factors of HR of soil water by roots of Tamarix ramosissima Ledeb.in an extremely arid land in Northwest China.Results showed evident diurnal fluctuations in θ at the depths of 30 and 50 cm,indicating 'hydraulic lift'(HL).θ increased remarkably at 10 and 140 cm but decreased at 30 and 50 cm and slightly changed at 80 cm after rainfall,suggesting a possible 'hydraulic descent'(HD).However,no direct evidence was observed in the negative flow of lateral roots,supporting HR(including HL and HD)of T.ramosissima.The HR pathway unlikely occurred via lateral roots;instead,HR possibly occurred through adventitious roots with a diameter of 2-5 mm and a length of 60-100 cm.HR at depths of 20-60 cm ranged from 0.01-1.77 mm/d with an average of 0.43 mm/d,which accounted for an average of 22% of the estimated seasonal total water depletion at 0-160 cm during the growing season.The climate factors,particularly vapor pressure deficit and soil water potential gradient,accounted for at least 33% and 45% of HR variations with depths and years,respectively.In summary,T.ramosissima can be added to the wide list of existing species involved in HR.High levels of HR may represent a considerable fraction of daily soil water depletion and substantially improve plant water status.HR could vary tremendously in terms of years and depths,and this variation could be attributed to climate factors and soil water potential gradient.TengFei YU Qi FENG JianHua SI HaiYang XI Wei LI 2013Journal of Arid Land2013,5,3:12
9Comparison of three evapotranspiration models with eddy covariance measurements for a Populus euphratica Oliv.forest in an arid region of northwestern China显示文摘The accurate estimation of evapotranspiration(ET) in arid regions is important for improving the water use efficiency of vegetation. Based on successive observations from May to October of 2014, we estimated the ET of a Populus euphratica Oliv. forest during the growing season in an extremely arid region using the PM(Penman-Monteith), SW(Shuttleworth-Wallace) and SSW(an improved canopy transpiration model) models. Estimated ET values were compared with those of the eddy covariance measurements. Results indicated that the actual ET of the P. euphratica forest was always overestimated by the PM model. The accuracy of the SW model was higher than that of the PM model. However, some data were not easily obtained because of the complicated structure of the SW model. The newly proposed SSW model gave the most accurate ET values, and its accuracy was higher at hourly than at daily time scale. In conclusion, the SSW model is more suitable for sparse vegetation system at large scales in extremely arid regions.GAO Guanlong ZHANG Xiaoyou YU Tengfei LIU Bing 2016Journal of Arid Land2016,8,1:12
10Lumbar pedicle cortical bone trajectory screw显示文摘Song Tengfei Wellington K Hsu Ye Tianwen 2014Chinese Medical Journal2014,,21:11
11Coking kinetics and influence of reaction-regeneration on acidity, activity and deactivation of Zn/HZSM-5 catalyst during methanol aromatization显示文摘The coking kinetics and reaction-regeneration on Zn/HZSM-5(Zn/HZ) catalyst in the conversion of methanol to aromatics were investigated.The highest initial benzene, toluene and xylene(BTX) yield of ca. 67.7% was obtained on fresh Zn/HZ catalyst, which showed the worst catalytic stability. The cycle of reaction-regeneration significantly modified the texture and acidity of Zn/HZ catalyst, which in turn affected its catalytic performance and coking behavior in methanol conversion to BTX. The residual carbon located on the surface of Zn/HZ catalyst led to the decrease of acid sites and the change on the acid sites distribution, which played an important roles on its activity and deactivation. It was found that the high B/L ratio and the low total acid sites concentration of the Zn/HZ catalyst favored to the high BTX yield and good catalytic stability in methanol conversion.Guiquan Zhang Xin Zhang Ting Bai Tengfei Chen Wentao Fan 2015Journal of Energy Chemistry2015,24,1:11
12Raindrop Size Distribution Parameters Retrieved from Guangzhou S-band Polarimetric Radar Observations显示文摘According to the statistical shape–slope(μ–Λ) relationship observed for the first time by several 2 D-Video-Distrometers(2 DVD) in southern China, a constrained gamma(C-G) model was proposed for the retrieval of rain drop size distributions(DSDs) from Guangzhou S-band polarimetric radar observations. Two typical precipitation processes were selected to verify the accuracy of the retrieval scheme. The μ–Λ relationship: Λ = 0.0241μ2 + 0.867μ + 2.453 was obtained based on the 2 DVD observation results from at Huizhou Longmen station, which is a very representative location in the area. Relying on the Guangzhou polarimetric radar measurements of radar reflectivity(ZHH) and differential reflectivity(ZDR), the gamma(Γ) size distribution parameters(N0, μ, and Λ) can be retrieved by the C-G model retrieval scheme. The results show that the Guangzhou polarimetric radar retrievals of DSDs were close to the2 DVD observations at Guangzhou Maofengshan station. The rain rate, mass mean diameter, and normalized intercept parameter of radar retrievals were in good agreement with the 2 DVD observations, and the relative errors were less than 10%. The overall accuracy of the retrieval scheme was high. The retrieval scheme has established the relationship between the polarimetric radar measurements and gamma size distribution parameters. It will be helpful to in-depth research and application of the dual-polarization radar data in microphysical precipitation processes analysis,as well as convection-resolved numerical model data assimilation and prediction effect evaluation.Xiantong LIU Qilin WAN Hong WANG Hui XIAO Yu ZHANG Tengfei ZHENG Lu FENG 2018Journal of Meteorological Research2018,32,4:11
13Novel Water-Based Drilling and Completion Fluid Technology to Improve Wellbore Quality During Drilling and Protect Unconventional Reservoirs显示文摘The efficient exploration and development of unconventional oil and gas are critical for increasing the self-sufficiency of oil and gas supplies in China.However,such operations continue to face serious problems(e.g.,borehole collapse,loss,and high friction),and associated formation damage can severely impact well completion rates,increase costs,and reduce efficiencies.Water-based drilling fluids possess certain advantages over oil-based drilling fluids(OBDFs)and may offer lasting solutions to resolve the aforementioned issues.However,a significant breakthrough with this material has not yet been made,and major technical problems continue to hinder the economic and large-scale development of unconventional oil and gas.Here,the international frontier external method,which only improves drilling fluid inhibition and lubricity,is expanded into an internal-external technique that improves the overall wellbore quality during drilling.Bionic technologies are introduced into the chemical material synthesis process to imitate the activity of life.A novel drilling and completion fluid technique was developed to improve wellbore quality during drilling and safeguard formation integrity.Macroscopic and microscopic analyses indicated that in terms of wellbore stability,lubricity,and formation protection,this approach could outperform methods that use typical OBDFs.The proposed method also achieves a classification upgrade from environmentally protective drilling fluid to an ecologically friendly drilling fluid.The developed technology was verified in more than 1000 unconventional oil and gas wells in China,and the results indicate significant alleviation of the formation damage attributed to borehole collapse,loss,and high friction.It has been recognized as an effective core technology for exploiting unconventional oil and gas resources.This study introduces a novel research direction for formation protection technology and demonstrates that observations and learning from the natural world can provide an inexhaustible source of ideas and inspire the creation of original materials,technologies,and theories for petroleum engineering.Guancheng Jiang Jinsheng Sun Yinbo He Kaixiao Cui Tengfei Dong Lili Yang Xukun Yang Xingxing Wang 2022Engineering2022,,11:11
14Geologic investigation and mapping of the Sinus Iridum quadrangle from Clementine, SELENE, and Chang’e-1 data显示文摘The objectives of lunar satellite remote sensing are to study lunar surface characteristics, inner structure, and its evolution history. The contents of TiO 2 and FeO are assessed from Clementine UV/VIS data for Sinus Iridum. The geologic stratigraphic units and crates are interpreted visually based on SELENE Terrain Camera (TC) images and the spatial resolution of which is up to 10 m. And the geologic ages of different stratigraphic units are calculated by the crater size-frequency distributions measurements. The gravity anomaly is generated from SELENE gravity model (SGM90d) to show its difference from Mare Imbrium. Furthermore, the thickness of lunar regolith is also derived from microwave radiometer data of Chang’e-1 satellite. Integrating these results, it shows that the Sinus Iridum is different from the Mare Imbrium in inner structure and surface sedimentation. And its history of subsidence, deposition, volcanism, and impact is described. It makes sense to the future soft-landing and sampling at potential Sinus Iridum by remote sensing geologic analysis.CHEN ShengBo , MENG ZhiGuo, CUI TengFei, LIAN Yi, WANG JingRan & ZHANG XuQing College of Geoexploration Science and Technology, Jilin University, Changchun 130026, China 2010Science China(Physics,Mechanics & Astronomy)2010,53,12:10
15Economic Optimization Dispatching Strategy of Microgrid for Promoting Photoelectric Consumption Considering Cogeneration and Demand Response显示文摘A system combining photovoltaic power generation and cogeneration is proposed to improve the photoelectric absorption capacity. First, a time-of-use price strategy is adopted to guide users to change their electricity consumption habits for participation in the demand response, and a demand response model is established. Then, particle swarm optimization(PSO)is used with the aim of minimizing the operation cost of the microgrid to achieve economic dispatching of the microgrid. This considers power balance equation constraints, unit operation constraints, energy storage constraints, and heat storage constraints. Finally, the simulation results show the improved level of photoelectric consumption using the proposed scheme and the economic benefits of the microgrid.Chunxia Dou Xiaohan Zhou Tengfei Zhang Shiyun Xu 2020Journal of Modern Power Systems and Clean Energy2020,8,3:10
16Influence of Nitrogen Flow Ratio on the Microstructure, Composition, and Mechanical Properties of DC Magnetron Sputtered Zr-B-O-N Films显示文摘Nanocrystalline ZrB 2 film and nanocomposite Zr-B-O-N films were prepared by non-reactive as well as reactive magnetron sputtering techniques, respectively. By means of X-ray diffraction analysis, electron probe microanalysis, X-ray photoelectron spectroscopy, and scanning electron microscopy, the influence of nitrogen flow ratio on the film microstructure and characteristics were investigated systematically, including the deposition rate, chemical compositions, phase constituents, grain size, chemical bonding, as well as cross-sectional morphologies. Meanwhile, the hardness and adhesion of above films were also evaluated by micro-indentation method and a scratch tester. With increasing the nitrogen flow ratio, the deposition rate of above films decreased approximately linearly, whereas the contents of N and O in the films increased gradually and tended to saturation. Moreover, the film microstructure was also altered gradually from a fine columnar microstructure to a featureless glass-structure. As the nitrogen flow ratio was 11.7%, the Zr-B-O-N film possessed an typical nanocomposite structure and presented good mechanical properties. During the process of reactive sputtering of metal borides, the introduction of nitrogen can show a pronounced suppression of columnar grain growth and strong nanocomposite structure forming ability.Tie-Gang Wang Yanmei Liu Tengfei Zhang Doo-In Kim KwanKHo Kim 2012Journal of Materials Science & Technology2012,28,11:10
17Parameter sensitivity and inversion analysis of a concrete faced rock-fill dam based on HS-BPNN algorithm显示文摘Considering the complex nonlinear relationship between the material parameters of a concrete faced rock-fill dam(CFRD) and its displacements, the harmony search(HS) algorithm is used to optimize the back propagation neural network(BPNN), and the HS-BPNN algorithm is formed and applied for the inversion analysis of the parameters of rock-fill materials. The sensitivity of the parameters in the Duncan and Chang's E-B model is analyzed using the orthogonal test design. The case study shows that the parameters φ0, K, Rf, and Kb are sensitive to the deformation of the rock-fill dam and the inversion analysis for these parameters is performed by the HS-BPNN algorithm. Compared with the traditional BPNN, the HS-BPNN algorithm exhibits the advantages of high convergence precision, fast convergence rate, and strong stability.SUN PengMing BAO TengFei GU ChongShi JIANG Ming WANG Tian SHI ZhongWen 2016Science China(Technological Sciences)2016,59,9:9
18An overview of 10-year observation of the South China Sea branch of the Pacific to Indian Ocean throughflow at the Karimata Strait显示文摘Besides the Indonesian throughflow(ITF), the South China Sea throughflow(SCSTF) also contributes to the water transport from the Pacific to the Indian Ocean. However, this South China Sea(SCS) branch at the Karimata Strait is poorly observed until 2007, even though its importance has been suggested by numerical studies for decades. In this paper, we review the nearly 10-year field measurement in the Karimata Strait by the execution of the projects of 'SCS-Indonesian Seas Transport/Exchange(SITE) and Impacts on Seasonal Fish Migration' and 'The Transport, Internal Waves and Mixing in the Indonesian Throughflow regions(TIMIT) and Impacts on Marine Ecosystem', which extend the observations from the western Indonesian seas to the east to include the main channels of the ITF, is introduced. Some major achievements from these projects are summarized.Zexun Wei Shujiang Li R.Dwi Susanto Yonggang Wang Bin Fan Tengfei Xu Budi Sulistiyo T.Rameyo Adi Agus Setiawan A.Kuswardani Guohong Fang 2019Acta Oceanologica Sinica2019,38,4:9
19Response of Populus euphratica Oliv.sap flow to environmental variables for a desert riparian forest in the Heihe River Basin,Northwest China显示文摘Being an important desert riparian forest in the lower reaches of the Heihe River Basin,Populus euphratica Oliv.forest functions as a natural barrier in maintaining and preserving the stability of local oases.Accordingly,accurately estimating the water use of P.euphratica is important for vegetation protection and water resource allocation.To date,little data are available for evaluating the hysteretic effects between sap flow and environmental variables,and for estimating the water use of desert riparian forest.In this study,we measured the sap flow velocity(V_s)of P.euphratica using the heat ratio method during the growing season of 2012.Based on the response of V_s to solar radiation(R_s)and vapor pressure deficit(VPD),we estimated the hourly Vsand daily V_s using the multivariable linear regression and a modified Jarvis-Stewart(JS)model,respectively.Hysteretic response of V_s to environmental variables was then evaluated using a sap flow model.We found the thresholds of V_s responses to R_s and VPD at both hourly and daily scales during the growing season,and successfully estimated the seasonal variations of hourly V_s and daily V_s using the JS model.At an hourly scale,the maximum V_s occurred earlier than the maximum VPD by approximately 0.5 h but later than the maximum R_s by approximate 1.0 h.At a daily scale,the maximum V_s lagged behind the maximum VPD by approximately 2.5 h while occurred earlier than the maximum R_s by approximately 2 h.However,hysteretic response of V_swas weakened when R_s and VPD were measured together using the JS model at both hourly and daily scales.Consequently,short-term and intensive field campaigns,where V_s and environmental variables can be measured,may be used to estimate short-run sap flow and stand transpiration using only two environmental variables.LI Wei SI Jianhua YU Tengfei LI Xiaoyan 2016Journal of Arid Land2016,8,4:9
20Interleukin-12 Gene Modification Exerts Anti-Tumor Effects on Murine Mammary Sarcoma Cell Line in vivo显示文摘The aim of this project was to investigate the anti-tumor effect of an IL-12 gene modified mammary sarcoma murine cell line, EMT6/IL-12, in mouse model. In this study, we transfected the recombinant eukaryotic plasmid encoding IL-12 gene (pcDNA6-p70) into EMT6 and obtained the IL-12 expressing EMT6/IL-12 cell line. Then EMT6/IL-12 cells were s.c. inoculated into mice. The recombinant vector treatment group was set as control. We then evaluated the inhibition of tumor growth and the anti-tumor immunity function in vivo such as cytotoxicity, proliferation of splenocytes and serial IFN-γ level. And the percentage of IFN-γ producing CD4 or CD8 T cells among splenocytes was also analyzed in tumor bearing mice. Our results showed that the growth of tumors was obviously inhibited in EMT6/IL-12 group. Moreover, the capacities of anti-tumor immunity were all significantly higher in EMT6/IL-12 group compared to the controls. The results of the present investigation support the notion that EMT6/IL-12 could exert gene therapy in tumor model by improving the anti-tumor cellular immunity.Dan Li Hong Yu Tengfei Xu Jinghua Li Yunfang Sun Wenqing Zhang 2008Cellular & Molecular Immunology2008,5,3:9
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