A5038669433- Sensor Technology and Measurement Systems
- X-ray Diffraction in Crystallography
- Transport Systems and Technology
- Crystallization and Solubility Studies
- Scientific Measurement and Uncertainty Evaluation
- Geoscience and Mining Technology
- Organic Electronics and Photovoltaics
- Grouting, Rheology, and Soil Mechanics
- Advanced Memory and Neural Computing
- Perovskite Materials and Applications
- Luminescence and Fluorescent Materials
- Advanced biosensing and bioanalysis techniques
- Water Quality Monitoring Technologies
- Conducting polymers and applications
- Radioactive Decay and Measurement Techniques
- Advanced Measurement and Detection Methods
- Advanced Sensor Technologies Research
- Geomechanics and Mining Engineering
- Flow Measurement and Analysis
- Calibration and Measurement Techniques
- Multidisciplinary Science and Engineering Research
- Electrochemical sensors and biosensors
- Statistical and numerical algorithms
- Metal-Organic Frameworks: Synthesis and Applications
- Landslides and related hazards
South China University of Technology
2020-2021
National Institute of Metrology
2013-2017
Nanjing University of Science and Technology
2016
A Zr-based metal–organic framework with zinc tetrakis(carboxyphenyl)-porphyrin (ZnTCPP) groups (MOF-525-Zn) was utilized to develop a novel electrochemiluminescence (ECL) biosensor for highly sensitive protein kinase activity assay. In this work, in terms of ECL measurements and cyclic voltammetry, the cathodic behaviors MOF-525-Zn aqueous media were thoroughly investigated first time. The photoelectric active ZnTCPP on frameworks could promote generation singlet oxygen (1O2) via series...
We report an organic lamellar single crystal as a versatile optoelectronic material in optical pumping and light-emitting transistors. The styrene derivative crystals with intrinsically ordered stacking structures, low impurities, high photoluminescence efficiency offer threshold energy of 21 μJ cm–2 for amplified spontaneous emission extraordinary device performance terms striking external quantum 3.63%, far exceeding the benchmark value this field.
Cyano-substituted oligo(<italic>p</italic>-phenylene vinylene) derivatives with π–π interactions and intermolecular hydrogen bonds in orthogonal directions were synthesised, demonstrated very low defect density by OFETs.
The measurement value of weight volume is important for correcting buoyancy influence in the mass measurement. Traditional method hydrostatic method. It most accurate currently, but it a complicated process requiring to be wetted reference fluid. To eliminate liquid against determination method, based on acoustics introduced paper. results from 1 kg 20 show accuracy system enough measuring class E weight. relative extend uncertainty less than 8×10 -4 .
Magnetic interactions may lead to errors in precision mass metrology. There are two factors named magnetic susceptibility and polarization which need be determined before First four methods compared analyzed suitable range, requirement, uncertainty note comparison process. Then given out, description of differences between normal weights micro-gram standards presented the paper. It is easy become magnetized if weight not well protected manufacture or daily using. So it important control its...
According to the measurement principle of magnetic parameter weight, influence reading stability for measuring magnetism weight is analyzed, and key presented in process. The measured by susceptometer with capacity 5.1g resolution 0.1 mg. At same time change environmental vibration at laboratory fluctuating ambient field are respectively. experimental results show that measurement.
In order to reach the object of test requirements non-automatic weighing instruments, an automatic measurement method on instruments is proposed, and a disseminating system developed. The includes loading unloading function without impact adhesion. Therefore type evaluation tests with maximum capacity from 50 kg 3000 such as indication error test, repeatability tare static temperature Damp heat can be finished automatically by system. solve problem that above not performed means personnel....
<div>The acoustic volume measuring method is a promising non-contact for determination of mass weights. To improve the accuracy with method, an system two chambers newly designed to compensate non-linearity errors. When reducing remaining air in chamber, can be greatly reduced. The volumes standards ranging from 100 g 5 kg are tested evaluate errors measurement. relative uncertainties below 7.0 ×10<sup>-4</sup> (<em>k</em>=2).</div>
CCM.M-K4 is a key international comparison organized by the Bureau International des Poids et Mesures (BIPM) to verify measurement ability of 1kg stainless weights. This paper reports process analysis mass determination during in NIM, China. The gravity correction and air bouncy are discussed, measuring uncertainties evaluated. Mass difference between test standards 0.0015 mg, average both 0.013 mg. standard uncertainty weights
In this paper, the volumes of mass weights ranging from 500 g to 1 are calibrated with a fused quartz solid density standard using hydrostatic weighing device developed by Lab Volume and Density in NIM, China. The stability liquid temperature is discussed. And also measurement uncertainty densities evaluated based on calibration models.
Abstract The large water inrush during excavation construction is a prominent problem in tunnels because of their fractured surrounding rock conditions and complex lithology, which seriously affects the tunnel progress safety. Advanced grouting ideas combining plugging draining, mainly involving draining supplementing plugging, have been put forward according to different geological conditions. In this study, we used three advanced techniques dispose from palm face, block points time,...
Abstract A DG hydropower station is studied in a high-altitude area, where the air thin and fault fracture zone develops on left right banks of dam foundation riverbed section. To ensure quality pit blasting excavation reduce disturbance to surrounding unexcavated rock mass, bench test conducted relaxation depth detection adopted for excavation. The average attenuation rate acoustic wave velocity before after all control points mass meets relevant standards specifications, overall...