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| 1 | Direct electrochemistry of glucose oxidase on the hydroxyapatite/Nafion composite film modified electrode and its application for glucose biosensing显示文摘A novel glucose biosensor was constructed by immobilizing the glucose oxidase(GOD) on a hydroxyapatite(HAp)/Nafion composite film modified glassy carbon electrode(GCE) and applied to the highly selective and sensitive determination of glucose.With the cooperation of HAp and Nafion,the composite film played an important role in enhancing the stability and sensitivity of the biosensor.The results demonstrate that the GOD adsorbed onto the HAp/Nafion composite film exhibits a pair of welldefined nearly reversible redox peaks and fine catalysis to the oxidation of glucose companied with the consumption of dissolved oxygen.On the basis of the decrease of the reduction current of dissolved oxygen at the applied potential of -0.80 V(vs.SCE) upon the addition of glucose,the concentration of glucose could be detected sensitively and selectively.The decreased reduction current was linear with the concentration of glucose in the range of 0.12―2.16 mM.The detection limit and sensitivity were 0.02 mM(S/N=3) and 6.75 mA·M-1,respectively.All the results demonstrate that HAp/Nafion composite film provides a novel and efficient platform for the immobilization of enzymes and realizes the direct electrochemistry.The composite materials should have potential applications in the fabrication of third-generation biosensors. | MA RongNa WANG Bin LIU Yan LI Jing ZHAO Qian WANG GuoTao JIA WenLi WANG HuaiSheng | 2009 | Science China Chemistry2009，52，11： | 3 |
| 2 | The first discovery of Permian conodont fauna from peri-Gondwana cool water facies in Tibet,China显示文摘The Angjie Formation and Xiala Formation,present in the Shiquanhe area of Gar County in the western part of Gangdise,Tibet,belong to the Gangdise stratigraphic subregion. Conodonts have been found in the Angjie Formation,and they permit an age determination of Early to Middle Permian for that formation. The age of the Xiala Formation could be late Middle Permian. Whether the Late Permian marine deposits are present in this area still needs to be determined,but it is possible that the lower part of the Xiala Formation overlaps partly the upper part of the Angjie Formation. More importantly,the study has brought about a finding of typical peri-Gondwana cool water facies conodonts,namely,Vjalovognathus sp. nov. x. This is the first report and brief description of a conodont fauna from peri-Gondowana cool water facies in China. It indicates that the Gangdise stratigraphic subregion can be subdivided;the western part belongs to peri-Gondwana cool water facies,and the eastern part belongs to Tethys. | ZHENG YouYe XU RongKe WANG ChengYuan MA GuoTao | 2007 | Chinese Science Bulletin2007，52，9： | 3 |
| 3 | China pursues a strict water resources management system显示文摘 | Qiting Zuo Runfang Jin Junxia Ma Guotao Cui | 2014 | Environmental Earth Sciences2014，，6： | 2 |
| 4 | Fast start-up of ANAMMOX reactor: Operational strategy and some characteristics as indicators of reactor performance显示文摘 | Huosheng Li Shaoqi Zhou Weihao Ma Guotao Huang Bin Xu | 2011 | Desalination2011，，： | 2 |
| 5 | Jitter Detection for Synchronization Control in Wireless Multimedia Sensor Networks显示文摘 | ZHAO Guotao MA Huadong SUN Yan LUO Hong LIU Liang | 2013 | Chinese Journal of Electronics2013，22，3： | 1 |
| 6 | Fast start-up of ANAMMOX reactor: Operational strategy and some characteristics as indicators of reactor performance显示文摘 | Huosheng Li Shaoqi Zhou Weihao Ma Guotao Huang Bin Xu | 2011 | Desalination2011，，： | 1 |
| 7 | Investigating low-permeability sandstone based on physical experiments and predictive modeling显示文摘An innovative method is proposed for preparing low-permeability sandstone with different moisture saturation.The permeability of the prepared low-permeability sandstone sample is measured under different confinement and seepage pressures.Based on the experimental results,10 types of different machine-learning models combined with optimization algorithms are established to predict the permeability of low-permeability sandstone.A comprehensive evaluation and comparison of the 10 types of machine-learning models are conducted to identify the machine-learning model with the best performance.Next,a sensitivity analysis is conducted on the factors influencing the permeability of low-permeability sandstone to elucidate the internal mechanism according to the established machinelearning model.The following conclusions are drawn.With an increase in the confinement pressure,the permeability of lowpermeability sandstone with different moisture-saturation levels decreases,and the permeability of low-permeability sandstone decreases with an increase in the moisture saturation.The hybrid particle swarm optimization algorithm-backpropagation artificial neural network(PSO-BPANN)model provides the best results for predicting the permeability of low-permeability sandstone.The established PSOBPANN model is also reliable for predicting the permeability of low-permeability sandstone from other engineering sites.Among the influencing factors,moisture saturation has the largest effect on the permeability of low-permeability sandstone,followed by the confinement pressure. | Zhiming Chao Guotao Ma Kun He Meng Wang | 2021 | Underground Space2021，6，4： | 1 |
| 8 | Surgical Treatment of Left Atrial Dissection and Severe Mitral Valve Obstruction显示文摘Left atrial dissection is a rare complication of mitral valve replacement surgery.Here,a case of left atrial dissection followed by mitral valvular obstruction was presented.It is suspected that the dissection was caused by trematodiases infection.Cardiac surgery was finally performed,which not only confirmed the diagnosis but also acted as an effective treatment.Especially,surgery is of essential value to confirm the perforation locating at the basal posterior wall of the left ventricle,to repair the atrial dissection,and to relieve the mitral valvular obstruction. | Antian Chen Guotao Ma Deyan Yang Chenyu Wang Yingxian Liu | 2021 | Cardiology Discovery2021，1，2： | 0 |
| 9 | Bubble dynamics properties of B-particles in a quasi-2D gas-solid fluidized bed:Computational particle fluid dynamics numerical simulation and post-processed by digital image analysis technique显示文摘Bubble dynamics properties play a crucial and significant role in the design and optimization of gas-solid fluidized beds.In this study,the bubble dynamics properties of four B-particles were investigated in a quasi-two-dimensional(quasi-2D)fluidized bed,including bubble equivalent diameter,bubble size distribution,average bubble density,bubble aspect ratio,bubble hold-up,bed expansion ratio,bubble radial position,and bubble velocity.The studies were performed by computational particle fluid dynamics(CPFD)numerical simulation and post-processed with digital image analysis(DIA)technique,at superficial gas velocities ranging from 2u_(mf) to 7u_(mf).The simulated results shown that the CPFD simulation combining with DIA technique post-processing could be used as a reliable method for simulating bubble dynamics properties in quasi-2D gas-solid fluidized beds.However,it seemed not desirable for the simulation of bubble motion near the air distributor at higher superficial gas velocity from the simulated average bubble density distribution.The superficial gas velocity significantly affected the bubble equivalent diameter and evolution,while it had little influence on bubble size distribution and bubble aspect ratio distribution for the same particles.Both time-averaged bubble hold-up and bed expansion ratio increased with the increase of superficial gas velocity.Two core-annular flow structures could be found in the fluidized bed for all cases.The average bubble rising velocity increased with the increasing bubble equivalent diameter.For bubble lateral movement,the smaller bubbles might be more susceptible,and superficial gas velocity had a little influence on the absolute lateral velocity of bubbles.The simulated results presented a valuable and novel approach for studying bubble dynamics properties.The comprehensive understanding of bubble dynamics behaviors in quasi-2D gas-solid fluidized beds would provide support in the design,operation,and optimization of gas-solid fluidized bed reactors. | Zemin Yuan Zhong Huang Guotao Qin Guanjia Zhao Suxia Ma Hairui Yang Guangxi Yue | 2024 | Particuology2024，86，3： | 0 |
| 10 | Xixiang Biota——Another Rare Scientific Window of the Cambrian Explosion显示文摘Objective The Xixiang biota is a specially preserved micro oryctocoenose discovered in the Lower Cambrian Kuanchuanpu member of Dengying Formation at Zhangjiagou section of Xixiang County in southern Shaanxi Province.The Kuanchuanpu member is a set of neritic carbonate sedimentary formation containing phosphorus and silicon.Its lithology is mainly | LIU Yunhuan WANG Qi SHAO Tiequan DONG Junyan TANG Hanhua ZHANG Yanan JIANG Kaituo HU Bo WANG Zhaojing PANG Guotao MA Yingying FAN Ziyang | 2016 | Acta Geologica Sinica(English Edition)2016，90，3： | 0 |
| 11 | Genesis of the Nuri Cu-W-Mo Deposit,Tibet,China:Constraints from in situ Trace Elements and Sr Isotopic Analysis of Scheelite显示文摘The Nuri deposit is the only Cu-W-Mo polymetallic deposit with large-scale WO3 resources in the eastern section of the Gangdese metallogenic belt,Tibet,China.However,the genetic type of this deposit has been controversial since its discovery.Based on a study of the geological characteristics of the deposit,this study presents mineralization stages,focusing on the oxide stage and the quartz-sulfide stage where scheelite is mainly formed,referred to as Sch-A and Sch-B,respectively.Through LA-ICP-MS trace element and Sr isotope analyses,the origin,evolutionary process of the oreforming fluid and genesis of the ore deposit are investigated.Scanning Electron Microscope-Cathodoluminescence(SEMCL)observations reveal that Sch-A consists of three generations,with dark gray homogenous Sch-A1 being replaced by relatively lighter and homogeneous Sch-A2 and Sch-A3,with Sch-A2 displaying a gray CL image color with vague and uneven growth bands and Sch-A3 has a light gray CL image color with hardly any growth band.In contrast,Sch-B exhibits a‘core-rim’structure,with the core part(Sch-B1)being dark gray and displaying a uniform growth band,while the rim part(Sch-B2)is light gray and homogeneous.The normalized distribution pattern of rare earth elements in scheelite and Sr isotope data suggest that the early ore-forming fluid in the Nuri deposit originated from granodiorite porphyry and,later on,some country rock material was mixed in,due to strong water-rock interaction.Combining the O-H isotope data further indicates that the ore-forming fluid in the Nuri deposit originated from magmatic-hydrothermal sources,with contributions from metamorphic water caused by water-rock interaction during the mineralization process,as well as later meteoric water.The intense water-rock interaction likely played a crucial role in the precipitation of scheelite,leading to varying Eu anomalies in different generations of scheelite from the oxide stage to the quartz-sulfide stage,while also causing a gradual decrease in oxygen fugacity(fO2)and a slow rise in pH value.Additionally,the high Mo and low Sr contents in the scheelite are consistent with typical characteristics of magmatic-hydrothermal scheelite.Therefore,considering the geological features of the deposit,the geochemical characteristics of scheelite and the O-H isotope data published previously,it can be concluded that the genesis of the Nuri deposit belongs to porphyry-skarn deposit. | WANG Yiyun WU Zhishan CHEN Wenqing DU Qing’an TANG Liwei SHI Hongzhao MA Guotao ZHANG Zhi LIANG Wei WU Bo MIAO Hengyi | 2024 | Acta Geologica Sinica(English Edition)2024，98，1： | 0 |
| 12 | Hollow polyhedron structure of amorphous Ni-Co-S/Co(OH)_(2) for high performance supercapacitors显示文摘In power storage technology,ion exchange is widely used to modify the electronic structures of electrode materials to stimulate their electrochemical properties.Here,we proposed a multistep ion exchange(cation exchange and anion exchange) strategy to synthesize amorphous Ni-Co-S and β-Co(OH)_(2) hybrid nanomaterials with a hollow polyhedron structures.The synergistic effects of different components and the remarkable superiorities of hollow structure endow Ni-Co-S/Co(OH)_(2) electrode with outstanding electrochemical performance,including ultra-high specific capacity(1440.0 C/g at 1 A/g),superior capacitance retention rate(79.1% retention at 20 A/g) and long operating lifespan(81.4% retention after5000 cycles).Moreover,the corresponding hybrid supercapacitor enjoys a high energy density of 58.4 Wh/kg at the power density of 0.8 kW/kg,and a decent cyclability that the capacitances are maintained at80.8% compared with the initial capacitance.This research presents a high-performance electrode material and provides a promising route for the construction of electrode materials for supercapacitors with both structural and component advantages. | Xixi Zhang Guangmeng Qu Zonghua Wang Guotao Xiang Shuhua Hao Xiaoke Wang Xijin Xu Wenxuan Ma Gang Zhao | 2021 | Chinese Chemical Letters2021，32，8： | 0 |
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