Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision

Hangzhou, China

Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision

Hangzhou, China
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Zhang D.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Li G.,Zhejiang Provincial Subordinate Architectural Design Institute | Xiang J.,Research Institute of Narada Power Source Co.
Materials Research Bulletin | Year: 2017

Design/fabrication of highly conductive porous metal phosphides is very attractive for construction of advanced cathodes for alkaline batteries. In this work, we report a facile hydrothermal-phosphorization method for fabrication of conductive porous Ni2P nanowall arrays. Cross-linked nanoparticles work together forming interconnected Ni2P nanowall arrays on nickel foam. Coupled with activated carbon (AC) anode, the integrated Ni2P nanowall arrays cathode exhibits notable energy storage performance with high capacity (125 mAh g−1), good high-rate ability and long-term cycling stability (99% retention after 6000 cycles at 1 Ag−1) due to the conductive nanowall configuration with fact reaction kinetics. It is prospected that the proposed synthetic strategy is useful for rational construction of next-generation advanced metal phosphides for applications in sensing, catalysis and energy storage. © 2016 Elsevier Ltd


Ma H.,Shandong Normal University | Liu X.,Wenzhou Environmental Monitoring Center Station | Zhang D.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Xiang J.,Research Institute of Narada Power Source Co.
Materials Research Bulletin | Year: 2017

Synthesis of multicomponent core/branch arrays is important for development of advanced energy storage devices. Herein we fabricate porous CoO@Co core/branch arrays by successive hydrothermal+electrodeposition methods CoO nanoflakes branch is uniformly coated on the Co nanowire core forming composite core/branch arrays (CBAs). The CoO@Co CBAs possess combined properties of highly porous structure and strong mechanical stability. As cathode for alkaline batteries, the obtained CoO@Co CBAs exhibit good electrochemical performances with high a capacity of 91.5mAhg-1 at 1Ag-1 and stable high-rate cycling life (73.5mAhg-1 after 12,000 cycles at 10Ag-1). The hierarchical core/branch architecture provides positive roles in the enhancement of electrochemical properties with fast electronic transportation path, and short diffusion channels of ions. Our finding offers a new way to construct high-performance cathode of alkaline batteries. © 2017 Elsevier Ltd.


Ma H.,Shandong Normal University | Liu X.,Wenzhou Environmental Monitoring Center Station | Zhang D.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Xiang J.,Research Institute of Narada Power Source Co.
Materials Research Bulletin | Year: 2017

Developing conducting polymer/oxide composites are of great importance to construct advanced electrochemical devices. In this work, we report a successive electrodeposition methods to fabricate polyaniline (PANI) on nickel oxide (NiO) nanoflake forming composite core-shell arrays. A thin layer of PANI of ∼10nm is successfully coated on the surface of NiO nanoflake core. High porosity and enhanced conductivity are obtained in this composite electrode. As anode materials for lithium ion batteries, the NiO/PANI core-shell arrays exhibit weaker polarization and better cycling performance as compared to the bare NiO film. The second discharge capacity of NiO/PANI composite arrays is about 780mAhg-1 at 0.1Ag-1, higher than that of the bare NiO film (679mAhg-1). The improvements of the electrochemical properties are attributed to the PANI, which forms a uniform conductive network leading to improved electrochemical performance. © 2017 Elsevier Ltd.


Lu W.,Kunming University of Science and Technology | Chen J.,Kunming University of Science and Technology | Li W.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Yu J.,Kunming University of Science and Technology | Liu Z.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision
Procedia Engineering | Year: 2012

In this paper, we calculate and analyze the structure and electronic states of Ag(111)/O2 surface by the first-principle calculation. There are four adsorbed surface structure listed as follow: top site, single bridge site, double bridge site and hollow site, which were calculated the relaxation properties, the adsorbed energy, work function and so on. The results presented in this work show that the optimum structure is double bridge site, and it's adsorbed energy is the lowest. O2 behave 1πg* in Ag(111). © 2011 Published by Elsevier Ltd.


He Z.,Zhejiang University | Xiao H.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Tang L.,Zhejiang University | Min H.,Zhejiang University | Lu Z.,Zhejiang University
Bioresource Technology | Year: 2013

HD-1, a stable microbial consortium capable of mineralizing di-. n-butyl phthalate (DBP), was developed from activated sludge. The dominant microorganisms in the consortium, Gordonia sp., Burkholderia sp. and Achromobacter sp., were identified by denaturing gradient gel electrophoresis (DGGE). The consortium could mineralize approximately 90% of 1200. mg/L DBP after 48. h of cultivation. The optimal DBP degradation conditions were 25-30°C and pH 8.0-9.0. The addition of yeast (0.5. g/L), sodium acetate (0.5. g/L, 1.0. g/L), Brij 35 (0.2%, 0.5%, 1.0%), or Triton X-100 (0.2%) enhanced DBP degradation. The DBP degradation rate was influenced by the presence of dimethyl phthalate (DMP) and diethyl phthalate (DEP). Only one main intermediate, phthalic acid, could be monitored by gas chromatography-mass spectrometry (GC-MS) during the degradation process. The HD-1 consortium also utilized phenol, o-dihydroxybenzene as the sole carbon and energy source. The results indicate the consortium may represent a promising application for DBP bioremediation. © 2012 Elsevier Ltd.


Fang J.,Zhejiang University | Xu H.,Zhejiang University | Wang Z.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Wu X.,Zhejiang University
Guangxue Xuebao/Acta Optica Sinica | Year: 2016

Based on the imaging principle of cameras, a transformation equation among response value under different capture settings is established, and a colorimetric characterization model based on the homogeneous polynomial regression is proposed, which avoids errors caused by the nonlinear extrapolation in the traditional polynomial model. A Nikon D3x digital camera is employed to conduct the colorimetric characterization experiment under variable capture settings and the effect of different numbers of terms on characterization accuracy is analyzed. The experimental results show that the homogeneous polynomial model is applicable to describing the colorimetric characterization of cameras with varible capture settings, and it shows the best performance with 6 or 7 terms. In the experiment of 28 kinds of LED light resources with 4 kinds of color temperature and 7 illumination levels, but under fixed color temperature and variable illumination, the predicted color accuracy is superior to 1.5 CIELAB units and it is comparable to the accuracy from the polynomial model with fixed parameters and light sources. In contrast, under the simultaneous change of color temperature and illumination levels, the average chromatic aberration is less than 2.0 CIELAB units, which fulfills the colorimetric accuracy requirement in the practical application of cameras. © 2016, Chinese Lasers Press. All right reserved.


Li Z.F.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Xu Z.L.,China Jiliang University
Applied Mechanics and Materials | Year: 2013

According to the problems of slow weighing speed and low precision resulting from sticky foods caking in quantitative packing weighting, the mechanical structure, the circuit system and the software algorithm were designed in this paper. To improve the weighing speed and precision of sticky foods, the double-tube spiral feeding machine and a special structure of scale bucket were adopted in mechanical structure; a programmable AD8555 was used as weak signal amplifier of weighing sensor and a 32-bit microprocessor LP2134 was utilized as the core of the circuit system; the piecewise weighing method, FIR software filter and the differential algorithm are applied to send command to executive mechanism in program design. © (2013) Trans Tech Publications, Switzerland.


Li Z.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Xu Z.,China Jiliang University
Applied Mechanics and Materials | Year: 2012

In order to solve the problem of siphon rainfall recorder's hard to control automaticly and the measurement error when siphoning, we research the Automatic forecasting system based on double barrel double siphon rainfall recorder and ARM processing terminal. By using double barrel double siphon structure and weighing cell, we eliminate the rainfall error caused by siphon loss, and achieve the automatic collection of rainfall data. © (2012) Trans Tech Publications, Switzerland.


Shen C.,China Jiliang University | Chu J.,China Jiliang University | Qian F.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision | Zou X.,China Jiliang University | And 3 more authors.
Journal of Modern Optics | Year: 2012

To improve the poor color rendering index (CRI) of YAG:Ce-based white light-emitting diode (LED) due to the lack of red spectral component, core/shell/shell CdSe/CdS/ZnS quantum dots (QDs) were synthesized and blended into nano-YAG:Ce 3+ phosphors. Prominent spectral evolution has been achieved by increasing the content of QDs. A white LED combining a blue LED with the blends of nano-YAG phosphors and orange-and red-emission QDs with a weight ratio of 1:1:1 was obtained. This kind of white LED showed excellent white light with luminescent efficiency, color coordinates, CRI and correlated color temperature (CCT) of 82.5lm/W, (0.3264, 0.3255), 91 and 4580K, respectively. © 2012 Taylor & Francis.


Jiang X.,Hangzhou Institute of Calibration and Testing for Quality and Technical Supervision
Zhongguo yi liao qi xie za zhi = Chinese journal of medical instrumentation | Year: 2012

This paper briefly introduces the basic principle of non-invasive automated sphygmomanometers, discusses its accuracy and influence factors and analyzes the Calibration test methods and its Inadequacies in application process as well.

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