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Du X.-H.,Henan Medical College for Staff and Workers | Cui J.-H.,Zhengzhou Institute of Aeronautical Industry Management | Zhao J.-W.,Henan University
Rengong Jingti Xuebao/Journal of Synthetic Crystals

A novel coordination complex {[Mn(H2BCPBA)2 (H2O)4]}n(1, H3BCPBA=3, 5-bi(4-carboxy-phenoxy)-benzoic acid) was synthesized from H3BCPBA and Mn2+ by self-assembly method. The compound was characterized by elemental analysis, IR, UV spectroscopy and single crystal X-ray diffraction analysis. Single crystal X-ray analysis reveals that the title compound is crystallized in the triclinic system, space group P1̄ with a=0.58423(13) nm, b=1.3644(3) nm, c=1.3910(3) nm, α=109.173(2)°, β=98.927(3)°, γ=99.123(3)°, V=1.0082(4) nm, Mr=913.63, Z=1, Dc=1.505 g/cm3, μ=0.414 mm-1, F(000)=471.0 for 3470 observed reflections with I>2σ(I). TG shows that the title compound is stable under 410°C. UV spectroscopy study reveals that the complex exhibits weak ultraviolet absorption in the solid state at room temperature. Source

Li L.,Henan Institute of Engineering | Li W.-J.,Henan Medical College for Staff and Workers
2011 International Conference on System Science, Engineering Design and Manufacturing Informatization, ICSEM 2011

Wireless sensor networks (WSN) nodes are usually resource-constrained, and the energy resources can affect the entire sensing network lifetime, therefore, the energy consumption problem is usually needed to be considered in the sensor network data fusion. This article introduces several data fusion methods for WSN, especially analyzes several kinds data fusion methods based on routing protocol. In the case of non-full data fusion, choosing the route of low energy consumption has more advantages in reducing the data amount, reducing network congestion, and extending the network cycle. © 2011 IEEE. Source

Mao L.-N.,Henan Medical College for Staff and Workers
Zhonghua Shiyan Yanke Zazhi/Chinese Journal of Experimental Ophthalmology

Background: Endophthalmitis is a serious infectious eye disease. Efficient drug therapy plays a key role in the early stage. There have been few researches on teicoplanin treating endophthalmitis and pharmacokinetics in ocular tissue. Objective: The present study was to investigate the intraocular pharmacokinetic course and feature of intravitreal administration of teicoplanin. Methods: Thirty-three Japanese white rabbits were included in this study and randomized into 6 groups. The right eyes of the rabbits were used in experiment. 5 g/L of teicoplanin was injected into the vitreous cavity, and vitreous and aqueous humor samples were extracted after 15 minutes, 30 minutes, 1,2,4,6,12,24,48,96 and 192 hours, and the concentration of teicoplanin was determined by bioassay. Results: The logarithmic value of the concentration of teicoplanin was raised with the increase in the bacterial inhibition zone diameters, of which the equation of the regression curve was Y=0.174X-0.813 (R 2=0.999). A good linear relationship was presented within 1.0-80.0 mg/L. Single intravitreal injection of teicoplanin was compliant with the two-compartment model. Moreover, the distribution phase T α/2 and elimination phase T β1/2 of vitreous were 1.68 and 152.15 hours, separately. And T α/2 and T β1/2 of the aqueous humor were 2.83 hours and 70.56 hours, individually. The peak teicoplanin concentrations in the vitreous and aqueous humor were (358.47± 21.53)mg/L and(102.17±9.54) mg/L at 1 hour, respectively and remained at (4.38±0.68) mg/L and (2.38±0.38) mg/L, respectively 192 hours later. Conclusions: Intravitreal injection of 0.5 mg of teicoplanin can remain therapeutic concentration for a long time in the vitreous and aqueous humor. Source

Yang X.-Y.,Zhengzhou University of Light Industry | Li W.-J.,Henan Medical College for Staff and Workers
2011 International Conference on System Science, Engineering Design and Manufacturing Informatization, ICSEM 2011

Under the background of manufacturing service, the rapid development of this new technology: cloud computing make the emergence and formation of cloud manufacturing. This paper introduces the current research status of cloud manufacturing at home and abroad, and analyzes the characteristics and design principle of the management and control platform facing the cloud manufacturing services, puts forward several aspects of the principle which from the system cost, the convenience of resources using, system security and service. We put forward the system design functions of management and control platform of cloud manufacturing. Finally, taking the heat treatment furnace cloud monitoring service system for example, we realize the development of the management and control platform for cloud manufacturing services. © 2011 IEEE. Source

Chen F.-X.,Zhengzhou University | Zhao M.-R.,Henan Medical College for Staff and Workers | Ren B.-Z.,Zhengzhou University | Zhou C.-R.,Zhengzhou University | Peng F.-F.,Zhengzhou University
Journal of Chemical Thermodynamics

The solubility of diosgenin in methanol, ethanol (95%), isopropanol, acetone, acetic ether, and propyl acetate were measured at temperatures from (295.15 to 330.15) K using the synthetic method by a laser monitoring observation technique at atmospheric pressure. Its corresponding (solid + liquid) equilibrium data will provide essential support for industrial design and further theoretical studies. The solubility data of diosgenin in isopropanol, acetone, ethanol (95%), and acetic ether were correlated with Apelblat equation, and the experimental data of diosgenin in methanol and propyl acetate were also correlated with the λh model. The calculated values were good in agreement with the experimental values. © 2011 Elsevier Ltd. All rights reserved. Source

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