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A ultrasensitive nonenzymatic glucose sensor based on Cu_2O polyhedrons modified Cu electrode

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Chinese Chemical Letters 2012年第8期23卷 953-956页

作者： Zhi Jun luo ting ting Han Ling Ling Qu Xiang Yang Wu School of The Environment Jiangsu UniversityZhenjiang 212013China School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang 212013China

A novel nonenzymatic glucose sensor was successfully fabricated based on the Cu2O polyhedrons covered Cu foil. The Cu2O polyhedrons covered Cu foil was constructed via a facile, low-cost and larger scale producible method. The Cu2O polyhedrons covered Cu foil can be directly used as the working electrode of nonenzymatic glucose sensor, which present good stability and flexibility. The results indicated that the Cu2O polyhedrons modified Cu electrode （Cu2O/Cu electrode） showed high electrocatalytic activity for the oxidation of glucose in alkaline solution. There are two linear regions of glucose concentration for the glucose sensor based on Cu2O/Cu electrode, respectively in 10μmol/L to 0.53 mmol/L （sensitivity： 3029.33 μA （mmol/ L）^-1 cm^-2） and in 0.53-7.53 mmol/L （sensitivity： 728.67 μA （rnmol/L）^-1 cm^-2）.

关键词： Cuprous oxide film Nonenzymatic sensor Glucose Electrocatalytic oxidation

Bi2WO6 doped with rare earth ions:Preparation,characterization and photocatalytic activity under simulated solar irradiation

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Journal of Rare Earths 2021年第1期39卷 58-66,I0003页

作者： Chunying Wang Chuantao Gu ting Zeng Qingqing Zhang Xianping luo College of Resource and Environmental Engineering Jiangxi University of Science and TechnologyGanzhou 341000China School of Chemistry and Chemical Engineering Xiamen UniversityXiamen 361005China

Rare-earth modification Bi2WO6 composites(RE/Bi2WO6)were studied by experimental performance and theory computation based on the different 4 f orbits of selected rare earth elements(La,Ce,Gd,and Yb).The prepared RE/Bi2WO6 was characterized by XRD,SEM/TEM,XPS,UV-vis DRS,and N2 adsorption to learn their physical-chemical *** dye Rhodamine B(RhB)was photodegraded as a target pollutant to investigate the photocatalytic activity of prepared RE/Bi2WO6 *** results of experiment and computation show that four rare earth elements with different electron configurations retain the phase and morphology of Bi2 WO6 and enhance the removal efficiency of RhB under simulated solar *** optimum doping contents are 0.01%,0.05%,0.05%and 0.01%for La-,Ce-,Gd-,and Yb-doped Bi2WO6,***,light rare earth La and Ce doped composites indicate some difference in visible light adso rption capacity and mineralization on RhB co mpared with heavy rare earth Gd and Yb doped *** La/Bi2WO6 and Ce/Bi2 WO6 possess larger pore size and higher mineralization ability than Gd/Bi2 WO6 and Yb/Bi2WO6 under the same experimental conditions while Gd/Bi2WO6 and Yb/Bi2WO6 show stronger red shift to the visible light due to the more 4 f *** hole oxidation plays a major role in the photodegradation of RhB by all RE/Bi2WO6.

关键词： Rare earth Bi2WO6 Rhodamine B Hole oxidation 4f orbit

Magnetite/N-doped carboxylate-rich carbon spheres:Synthesis,characterization and visible-light-induced photocatalytic properties

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Chinese Chemical Letters 2013年第1期24卷 63-66页

作者： Hong-Jun Tang ting-ting Han Zhi-Jun luo Xiang-Yang Wu School of Chemistry and Chemical Engineering Jiangsu University School of the Environment Jiangsu University State Key Laboratory of Coordination Chemistry Nanjing University

A novel magnetically separable visible-light-photocatalyst, magnetite/N-doped carboxylate-rich carbon spheres （N-MCRCSs）, was synthesized by a facile ultrasonic method using the magnetite/carboxylate- rich carbon spheres （MCRCSs） as precursors. N element has been successfully doped into the MCRCSs in a HN03 aqueous solution via an ultrasonic treatment, which were demonstrated by the FT-IR and XPS. N- MCRCSs exhibit more intensive absorption over MCRCSs in the entire UV and visible region. N-MCRCSs can not only be easily recycled by applying an external magnetic field, but also exhibit powerful visible light photocatalytic activity.

关键词： Visible-light-photocatalystFerricarboxylate complexesMagnetiteN-doped carbon

Vibration-based synchronous sampling and its application in wind-turbine drive-train-condition monitoring

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Clean Energy 2021年第1期5卷 79-92页

作者： ting Hu Hongyi Wan Huageng luo National Institute of Clean-and-Low-Carbon Energy China EnergyFuture Science CityChangping DistrictBeijing 102211P.R.China United Power Sida Company China EnergyWest 4th Ring Middle RoadHaidian DistrictBeijing 100039P.R.China Xiamen University 4221–134 Xiang’an South RoadXiang’an DistrictXiamenFujian 361102P.R.China

Utilizing shaft-speed information to analyse vibration signals is an important method for fault diagnosis and condition monitoring of rotating machineries,especially for those running at variable ***,in many cases,shaft-speed information is not always available,for a variety of ***,in most of the measurements,the shaft-speed information is embedded in the vibration response in many different forms,such as in the format of the fundamental shaft-rotation-frequency response and its harmonics,and the gear-meshing-frequency response and its harmonics,*** signal processing can be used to extract the shaft instantaneous speed from the measured vibration *** existing instantaneous shaft-speed-identification methods,a narrow-bandpass filtering technique is used explicitly or *** a complex gearbox system,such as that used in a wind turbine,the gear-meshing-response component could be modulated by many other shaft speeds,due to the configuration of the gearbox or due to the existence of component *** a result,it is very difficult to isolate a single vibration-response component for instantaneous shaft-speed *** this paper,an innovative approach is *** instantaneous shaft speed is extracted based on maxima tracking from the vibration-response spectrogram.A numerical integration scheme is employed to obtain the shaft instantaneous ***-domain synchronous resampling is then applied to the vibration data by using the instantaneous phase *** to the nature of noise suppression in the numerical integration,the accuracy of synchronous sampling is greatly *** proposed approach demonstrates the feasibility and engineering applicability through a controlled laboratory test case and two field wind-turbine *** detailed results and conclusions of this research are presented at the end of this paper.

关键词： wind turbine condition monitoring tacho-less instantaneous speed instantaneous phase synchronous sampling time synchronous averaging

Network Pharmacology in Research of Chinese Medicine Formula: Methodology, Application and Prospective

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Chinese Journal of Integrative Medicine 2020年第1期26卷 72-80页

作者： luo ting-ting LU Yuan YAN Shi-kai XIAO Xue RONG Xiang-lu GUO Jiao Institute of Traditional Chinese Medicine Guangdong Pharmaceutical UniversityGuangzhou 510006China Guangdong Metabolic Diseases Research Center of Integrated Chinese and Western Medicine Guangzhou 510006China School of Pharmacy Shanghai Jiao Tong UniversityShanghai 200240China

Chinese medicine(CM) is usually prescribed as CM formula to treat disease. The lack of effective research approach makes it difficult to elucidate the molecular mechanisms of CM formula owing to its complicated chemical compounds. Network pharmacology is increasingly applied in CM formula research in recent years, which is identified suitable for the study of CM formula. In this review, we summarized the methodology of network pharmacology, including network construction, network analysis and network verification. The aim of constructing a network is to achieve the interaction between the bioactive compounds and targets and the interaction between various targets, and then find out and validate the key nodes via network analysis and network verification. Besides, we reviewed the application in CM formula research, mainly including targets discovery, bioactive compounds screening, toxicity evaluation, mechanism research and quality control research. Finally, we proposed prospective in the future and limitations of network pharmacology, expecting to provide new strategy and thinking on study for CM formula.

关键词： network pharmacology Chinese medicine formula targets discovery mechanism research quality control research

Clinical outcomes of transcatheter selective superior mesenteric artery urokinase infusion therapy vs transjugular intrahepatic portosystemic shunt in patients with cirrhosis and acute portal vein thrombosis

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World Journal of Gastroenterology 2017年第41期23卷 7470-7477页

作者： ting-ting Jiang Xiao-Ping luo Jian-Ming Sun Jian Gao Department of Gastroenterology and Hepatology Second Affiliated HospitalChongqing Medical University Department of Radiology Second Affiliated HospitalChongqing Medical University Department of Vascular Surgery Second Affiliated HospitalChongqing Medical University

AIM To compare the outcomes of transcatheter superior mesenteric artery(SMA) urokinase infusion and transjugular intrahepatic portosystemic shunt(TIPS) for acute portal vein thrombosis(PVT) in *** From January 2013 to December 2014, patients with liver cirrhosis and acute symptomatic PVT who met the inclusion criteria were randomly assigned to either an SMA group or a TIPS group. The two groups accepted transcatheter selective SMA urokinase infusion therapyand TIPS, respectively. The total follow-up time was24 mo. The primary outcome measure was the change in portal vein patency status which was evaluated by angio-computed tomography or Doppler *** outcomes were rebleeding and hepatic *** A total of 40 patients were enrolled, with 20 assigned to the SMA group and 20 to the TIPS group. The symptoms of all patients in the two groups improved within 48 h. PVT was improved in 17(85%) patients in the SMA group and 14(70%) patients in the TIPS group. The main portal vein(MPV) thrombosis was significantly reduced in both groups(P < 0.001), and there was no significant difference between them(P= 0.304). In the SMA group, superior mesenteric vein(SMV) thrombosis and splenic vein(SV) thrombosis were significantly reduced(P = 0.048 and P = 0.02),which did not occur in the TIPS group. At 6-, 12-,and 24-mo follow-up, in the SMA group and the TIPS group, the cumulative rates free of the first episode of rebleeding were 80%, 65%, and 45% vs 90%, 80%,and 60%, respectively(P = 0.320); the cumulative rates free of the first episode of hepatic encephalopathy were 85%, 80%, and 65% vs 50%, 40%, and 35%,respectively(P = 0.022).CONCLUSION Transcatheter selective SMA urokinase infusion and TIPS are safe and effective for acute symptomatic PVT in cirrhosis.

关键词： Cirrhosis Portal vein thrombosis Superior mesenteric artery Urokinase Transjugular intrahepatic portosystemic shunt

ASSESSING WORKING MEMORY IN REAL-LIFE SITUATIONS WITH FUNCTIONAL NEAR-INFRARED SPECTROSCOPY

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Journal of Innovative Optical Health Sciences 2009年第4期2卷 423-430页

作者： ting LI LI LI QINGMING luo HUI GONG Britton Chance Center for Biomedical Photonics National Laboratory for Optoelectronics Huazhong University of Science and Technology Wuhan 430074 P.R.China

Working memory is one of the most important functions in our brain,which has been widely studied with unreal-life measured technologies.A functional near-infrared spectroscopy(fNIRS)instrument with a portable and low-cost design is developed,which is capable of providing hemodynamic measurement associated with brain function in real-life *** this instrument,we performed working memory studies involved in Chinese words encoding,verbal,and spatial stem recognition,which are mainly studied with other *** results show that fNIRS can well assess working memory activities,in comparison with the reported results mainly using other ***,we find that hemodynamic change in the prefrontal cortex during all working memory tasks is highly associated with subjects’behavioral *** is shown to be a promising alternative to the current methodologies for studying or assessing functional brain activities in natural condition.

关键词： Functional near-infrared spectroscopy(fNIRS) working memory prefrontal cortex(PFC) oxy-hemoglobin deoxy-hemoglobin

Experimental and numerical study on a micro jet cooling solution for high power LEDs

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Science China(Technological Sciences) 2007年第4期50卷 478-489页

作者： luo XiaoBing LIU Sheng JIANG XiaoPing CHENG ting School of Energy and Power Engineering Huazhong University of Science&TechnologyWuhan 430074China Wuhan National Lab of Optoelectronics Huazhong University of Science&TechnologyWuhan 430074China Institute of Microsytems Huazhong University of Science&TechnologyWuhan430074China

An active cooling solution based on close-looped micro impinging jet is proposed for high power light emitting diodes (LEDs). In this system, a micro pump is utilized to enable the fluid circulation, impinging jet is used for heat exchange between LED chips and the present system. To check the feasibility of the present cooling system, the preliminary experiments are conducted without the intention of parameter optimization on micro jet device and other system components. The experiment results demonstrate that the present cooling system can achieve good cooling effect. For a 16.4 W input power, the surface temperature of 2 by 2 LED array is just 44.2°C after 10 min operation, much lower than 112.2°C, which is measured without any active cooling techniques at the same input power. Experimental results also show that increase in the flow rate of micro pump will greatly enhance the heat transfer efficiency, however, it will increase power consumption. Therefore, it should have a trade-off between the flow rate and the power consumption. To find a suitable numerical model for next step parameter optimization, numerical simulation on the above experiment system is also conducted in this paper. The comparison between numerical and experiment results is presented. For two by two chip array, when the input power is 4 W, the surface average temperature achieved by a steady numerical simulation is 34°C, which is close to the value of 32.8°C obtained by surface experiment test. The simulation results also demonstrate that the micro jet device in the present cooling system needs parameter optimization.

关键词： high power LEDs closed system micro impinging jets thermal management

Experimental Study of Nd^(3+):KGd(WO_(4))_(2) Laser Pumped by Laser Diode

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Chinese Physics Letters 1996年第3期13卷 178-181页

作者： ZHAO ting-jie TU Chao-yang luo Zun-du Fufian Institute of Research on the Structure of Matter Chinese Academy of SciencesFuzhou 350002

This paper presents the cw output characteristics of Nd^(3+):KGd(WO_(4))_(2)(KGW)laser crystal with different NcP+concentration grown in our *** laser output at 1.067 μm of KGW crystal(3×3×6 mm)was obtained to be 6... 详细信息

关键词： pumped laser diode