Institute of NBC Defence

Taikang, China

Institute of NBC Defence

Taikang, China
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Xu J.,Institute of NBC Defence | Yan C.,Institute of NBC Defence | Liu C.,Institute of NBC Defence | Zhou C.,Institute of NBC Defence | And 2 more authors.
IOP Conference Series: Materials Science and Engineering | Year: 2017

Nowadays the photonic crystal hydrogel materials have shown great promise in the detection of different chemical analytes, including creatinine, glucose, metal ions and so on. In this paper, we developed a novel three-dimensional photonic crystal hydrogel, which was hydrolyzed by sodium hydroxide (NaOH) and immobilized with butyrylcholinesterase (BuChE) by 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride(EDC). They are demonstrated to be excellent in response to sarin and a limit of detection(LOD) of 1×10-9 mg mL-1 was achieved. © Published under licence by IOP Publishing Ltd.

Sun X.,Institute of NBC Defence | Xiao H.,Institute of NBC Defence
Applied Mechanics and Materials | Year: 2014

To solve the harmony problem of accuration, real-time with anti-noise capability on edge detection of smokescreen, the edge detection algorithm of smokescreen based on multi-scale mathematical morphological is designed, and the algorithm can effectively reduce the noise of the smokescreen image. Compared with the results of classical edge detection operator: Sobel, Roberts, Prowitt and Canny etc, it is concluded that the algorithm designed has obvious advantages in continuity, smoothness, image recognition, practical complexity, operation time and other related parameters. © (2014) Trans Tech Publications, Switzerland.

Sun X.,Institute of NBC Defence | Wang X.Y.,Institute of NBC Defence | Li W.,Institute of NBC Defence | Liu Z.L.,Institute of NBC Defence
Advances in Energy Science and Equipment Engineering - Proceedings of International Conference on Energy Equipment Science and Engineering, ICEESE 2015 | Year: 2015

The result of the combination of mixed reality and three-dimensional digital battlefield is just the DBBMR (Digital Battlefield Based on Mixed Reality). The paper proposed a definite concept, formation and research framework on the DBBMR, and in addition, conducted a detailed discussion. The paper also stated the design and implementation of the DBBMR, elaborated the involved data organization, integration of video and the terrain of digital battlefield, etc., and introduced its application and development trend. Through a combined utilization of these techniques, a DBBMR model was developed and the relevant test was conducted. © 2015 Taylor & Francis Group, London.

Ge W.,Institute of NBC Defence | Ge W.,Public Security Fire Forces College | Chen J.,Institute of NBC Defence | Zong L.,Institute of NBC Defence | And 5 more authors.
Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities | Year: 2017

Hemin was used as a catalyst for the oxidation of thiols to corresponding disulfides. The addition of N,N-diisopropylethylamine(DIEA) can enhance the hemin catalytic activity and decrease the hemin self-oxidative degradation during the catalytic process. The methyl thioglycolate was quickly oxidized to corresponding disulfide product(completed 90% in 20 min) in the presence of 1/4 hemin in aqueous solution(pH=8.0) and DIEA involved in the reaction as an axial ligand. The oxidation was carried out at room temperature(ca. 20℃) under atmosphere condition. And this catalytic system was also successfully applied in disulfide bond formation in peptide synthesis. Oxytocin and linaclotide were used as model peptide. Compared with conventional oxidation reagents, the notable feature of this catalytic system is green and efficient, which provides an alternative way to formating disulfide bond in peptide synthesis. © 2017, Higher Education Press. All right reserved.

Sun J.,Institute of NBC Defence | Li J.,Institute of NBC Defence | Zhou T.,Institute of NBC Defence | Yang K.,China Electric Power Research Institute | And 6 more authors.
Nano Energy | Year: 2016

The toxicity analysis of combustion products from commercialized Li-ion batteries was performed in this work. More than 100 emitted gaseous products are identified, most of which are hazardous to the human beings and trigger negative impact on the environment. Moreover, the states of charge of battery was found to significantly affect the types of toxic combustion products, and the 100% state of charge even led to the most serious toxicity. The relationship between the concentration of toxic combustion products and battery capacity was also investigated. Interestingly, the concentration of carbon monoxide rose up rapidly up on the increase of the capacity instead of the toxic organic products. This investigation suggests that the efforts on effective battery emergency response could be potentially simplified to achieve cost down for manufacturers. © 2016 Elsevier Ltd

Ma L.,Institute of NBC Defence | Tang H.,Institute of NBC Defence | Zhou C.,Institute of NBC Defence | Zhang H.,Institute of NBC Defence | And 6 more authors.
International Journal of Nanoscience | Year: 2014

A kind of typical metal-organic frameworks (MOFs) material, HKUST-1 was prepared by hydrothermal method and characterized by XRD and SEM. The results of characterizations manifested that HKUST-1 showed a regular octahedral crystal structure. The as-prepared HKUST-1 was modified by several kinds of organic base materials and the CO2 adsorption behaviors of modified HKUST-1 materials were evaluated. The CO2 adsorption capacities of different base modified HKUST-1 varied with the base intensity of modified organic base materials. © 2014 World Scientific Publishing Company.

Xu J.-Y.,Institute of NBC Defence | Yan C.-X.,Institute of NBC Defence | Hu X.-C.,Institute of NBC Defence | Liu C.,Institute of NBC Defence | And 3 more authors.
International Journal of Nanoscience | Year: 2015

There is intense interest in the applications of photonic crystal hydrogel materials for the detection of glucose, metal ions, organophosphates and so on. In this paper, monodisperse polystyrene spheres with diameters between 100 ~ 440 nm were synthesized by emulsion polymerization. Highly charged polystyrene spheres readily self-assembled into crystalline colloidal array because of electrostatic interactions. Photonic crystal hydrogel materials were formed by polymerization of acrylamide hydrogel around the crystalline colloidal arrays of polystyrene spheres. After chemical modification of hydrogel backbone with carboxyl groups, our photonic crystals hydrogel materials are demonstrated to be excellent in response to pH and ionic strength changes. © 2015 World Scientific Publishing Company.

Zhou Q.,Central South University | Chen L.,Beijing Institute of Radiation Medicine | Yin H.-J.,Beijing Institute of Radiation Medicine | Li B.,Beijing Institute of Radiation Medicine | And 7 more authors.
Journal of Asian Natural Products Research | Year: 2014

Two new flavonols, 6-p-hydroxybenzyl kaempferol (1) and 6-p-hydroxybenzyl quercetin (2), together with six known compounds were isolated from the roots of Cudrania cochinchinensis and their structures elucidated on the basis of spectroscopic methods. Their antioxidant capacities were evaluated by 1,1-diphenyl-2-picryl-hydrazyl and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) radical-scavenging assays. The results suggested that compounds 2, 4, and 7 showed significant radical-scavenging activities. © 2014 Taylor & Francis.

Yang M.,Chinese Academy of Sciences | He J.,Chinese Academy of Sciences | Hu M.,Chinese Academy of Sciences | Hu M.,University of Chinese Academy of Sciences | And 3 more authors.
Sensors and Actuators, B: Chemical | Year: 2015

Copper oxide nanoparticles were prepared by the solvothermal method, and characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption-desorption measurements. The as-prepared CuO nanoparticles functionalized QCM resonators were fabricated and explored for HCN sensing under varied humidity conditions. When the humidity of air containing HCN is the same as that of environmental air, a characteristic positive frequency shift of CuO nanoparticles functionalized QCM resonator is always observed towards HCN because of a reversible surface redox reaction between CuO and HCN. The sensitivity of CuO nanoparticles functionalized QCM resonators increases with increase of relative humidity in the range of 9-51%. These results provide an important guidance for further developing HCN gas sensors towards practical applications. © 2015 Elsevier B.V. All rights reserved.

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