| 5 | Technical modifications & management innovations in exporting nuclear reactor projects显示文摘As a main channel for the foreign economic cooperation of China nuclear industry,China Zhongyuan Engineering Corporation (CZEC) has been constantly engaged in technical modifications and management innovations in its exporting nuclear reactor projects.In the implementation of heavy water research reactor contract in Algeria,CZEC had established a complete and adequate design standards system in compliance with the international standards,and made significant modifications to the reference reactor in the aspects of reactor power and reactor safety,solved quite some technical issues which affected the reactor technical performance.The modifications and improvements enabled the technical parameters,safety features,reactor multipurpose application to attain to the advanced level in the world.In the 300 MWe PWR NPPs in Pakistan,safety features had been updated in line with upgrading regulatory requisites.The design philosophy and technology application demonstrated CZEC's creation and innovation on basis of constant safety enhancement of nuclear power projects.Efforts had also been made by CZEC in promoting China made equipment items and components exportation. | Mao Xiaoming Qin xijiu Ding Hu Xue Zhaoqun Wen Shengjun | 2009 | Engineering Sciences2009，7，4： | 1 |
| 7 | Expression of prostaglandin E_2 receptors in rat hippocampus显示文摘BACKGROUND: Prostaglandin E2(PGE2)can directly regulate toxic injury of hippcampal neurons throgh particpation by its receptor.Increase of excitability of hippocampal membrane and long-term synaptic elasticity are closely related to PGE2,PGD2 and PGF2A.This suggests that PGE2 may be a key molecule of neuronal signal passage and regulate the existence of neurons theough its receptor.However,which isoforms of PGE2 recptor expressing in hippocampal neurons is still unclear.OBJECTIVE: To research the subtype expression of PGE2 receptor in hippocampus of rats throgh mRNA transcription and protein interpretation.DESIGN: Animal studies with random,control and operator and designer double-blind methods.SETTING: University of South Carolina,Animal Center.MATERIALS: Sprague-Dawley rats,aged 12 weeks ,weighing 200 g,females 48 and males 48 ,were selected from Animal Center in South Carolina University,Tri ReagentTM kit was provided by Molecular Research Center,USA.METHODS:The experiment was carried out in Animal Center in South Carolina University from January to December 2005.The expression of the PGE2 receptors was profiled and compared in rat hippocampus using real-time RT-PCR and Western-blot techniques.MAIN OUTCOME MEASURES:Expression of PGE2 receptors in various isoforms of hippocampal neurons of rats.RESULTS:mRNAs of all four Ep1-4 subtypes were detected in the hippocampus.Western-blot data showed consistently detectable bands at approximately Mr 50 000 of EP1,Mr 40 000 and Mr 52 000 of EP2,Mr 45 000,M 57 000 and Mr 105 000 of EP3, and Mr 46 000 of EP4.CONCLUSION:Identifying four subtypes of Eps heterogeneously expresses in the hippocampus. | Fang Liu1,2, Weidong Xu1, Xijiu Fu1, Jie Li1, Yanrong Song1, Xiaolin Li1, Xiaoxin He1, Dong Han1, Qiuxia Li1, Yuhua Chen3 1Department of Neurology, Fengtian Hospital, Shenyang Medical College, Shenyang 110024, Liaoning Province, China 2University of South Carolina, USA 3Department of Development, China Medical University, Shenyang 110024, Liaoning Province, China | 2006 | Neural Regeneration Research2006，1，7： | 0 |
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