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Progress on the Preparation of Ultra-pure Hydrogen Peroxide
Guo-Yan Luan,Wei-Ping Gao,Ping-Jing Yao 한국공업화학회 2007 Journal of Industrial and Engineering Chemistry Vol.13 No.7
Progress on the preparation of ultra-pure hydrogen peroxide is reviewed. The technologies include distillation and relative technologies, combination methods of ion exchange and adsorption resin, membrane separation and relative technologies, crystallization, flocculation, and adding addition agents as so well. Distillation is reliable and easy to industrialize, while purity of hydrogen peroxide distilled is not high enough. Crystallization, flocculation, and adding addition agents can only be used as accessory technologies. It is safe for membrane separation, but the life of membrane is short. Ion exchange and adsorption resin processes are simple and the product purity is high, but ion exchange resin is easy to be oxidized. It is the tendency for the preparation of ultra-pure hydrogen peroxide that distillation is used firstly and then the combination of membrane separation technologies or ion exchange and adsorption resin processes are followed.
Dynamic Analysis of Catapult Availability Based on CBM
Xia Guo-Qing,Luan Tian-Tian,Sun Ming-Xiao,Liu Yan-Wen 보안공학연구지원센터 2016 International Journal of Hybrid Information Techno Vol.9 No.10
The repair of catapult is a complicated engineering. In this paper, the method of Condition Based Maintenance is applied into the repair system based on the catapult maintenance of system analysis. In view of the application of Condition Based Maintenance in the modern aviation equipment, the catapult availability is the final goal. The structure of catapult maintenance system is analyzed. The structure model of system dynamic feedback is established by using system dynamics method. Simulation is based on the "Nimitz" actual data of the Surge operation in 1997. The results prove the effectiveness and rationality of the proposed method. Through the analysis of the simulation evaluation results, the method applying Condition Based Maintenance into catapult repair system can improve catapult availability.
Xiu-Li Wang,Na Han, Hong-Yan Lin,Chuang Xu,Jian Luan,Guo-Cheng Liu 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.11
A novel 3D compound {[Cu(L)(H2O)4][Cu2(SIP)2(L)2]}·2H2O (1) (L = N,N-bis(4-pyridinecarboxamide)-1,4- butane, SIP = 5-sulfoisophthalate) is hydrothermally synthesized. X-ray diffraction analysis reveals that compound 1 is composed of 2D anionic [Cu2(SIP)2(L)2]n 2n− double-layers and discrete 1D cationic [CuL(H2O)4]n 2n+ polymeric chains, which represents a rare 3D polypseudo-rotaxane MOF from intercalation of 1D and 2D framework. In addition, the luminescent property and electrochemical behavior of compound 1 have been investigated.
Wang, Xiu-Li,Han, Na,Lin, Hong-Yan,Xu, Chuang,Luan, Jian,Liu, Guo-Cheng Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.11
A novel 3D compound $\{[Cu(L)(H_2O)_4][Cu_2(SIP)_2(L)_2]\}{\cdot}2H_2O$ (1) (L = N,N-bis(4-pyridinecarboxamide)-1,4-butane, SIP = 5-sulfoisophthalate) is hydrothermally synthesized. X-ray diffraction analysis reveals that compound 1 is composed of 2D anionic $[Cu_2(SIP)_2(L)_2]_n{^{2n-}}$ double-layers and discrete 1D cationic $[CuL(H_2O)_4]_n{^{2n+}}$ polymeric chains, which represents a rare 3D polypseudo-rotaxane MOF from intercalation of 1D and 2D framework. In addition, the luminescent property and electrochemical behavior of compound 1 have been investigated.