The Research of Marketting Sale's Tactics For PS Sheet In Chinalco

随着中国市场经济体制改革的进一步深化，各行各业的竞争逾演逾烈，作为印刷用PS版基市场更是如此。该产品是属于铝加工板块中技术含量较高的品种，不仅是一个资金密集型产品，还是一个必须具备较高技术工艺水平的产品。 在20世纪90年代以前，我国印刷行业所使用的印刷用PS版基主要被德国、日本等发达国家的企业所垄断。90年代以后，随着中国铝加工行业的技术进步和设备更新，有为数不多的中国企业，如中国铝业公司下属的中铝西南、中铝瑞闽可以生产该产品，这在一定程度上冲击了进口产品的垄断经营。这些企业为民族工业的发展起到积极的作用，而且在价格上很有竞争优势，产品供不应求，具有较高的附加值。 进入21世纪以来，随着...With the deepening of the marketing economic system innovation in China, the competition in all fields is very acuity. So is the PS sheet market. This product is the high-technical required in the aluminium process, not only huge amount needed, but also high-grade technical supported. Before the nineties of the zoth century, this market was controlled by the developed country such as Germany a...学位：工商管理硕士院系专业：管理学院工商管理教育中心（MBA中心）_工商管理硕士(MBA)学号：X20021545

Heavy metal levels in seafood from Honghai Bay and its human dietary exposure assessment

分析了广东红海湾13种海产品肌肉组织中8种重金属铬(Cr)、钴(CO)、镍(nI)、铜(Cu)、锌(zn)、砷(AS)、镉(Cd)和铅(Pb)的浓度水平,并利用单因子污染指数法(Pn)评价其污染状况。利用美国环保署提出的人体健康风险评价模式进行人体重金属暴露风险评估,同时利用金属污染指数(XMPI)研究生物体的重金属富集效应。结果显示:红海湾生物总体污染水平较低,Cr在软体类生物中属于轻度污染;nI在甲壳类生物中属于轻度污染;Cu和zn在鱼类中属于轻度污染;Cr在鱼类和甲壳类中都属于中度污染。口虾蛄OrATOSQuIllA OrATOrIA对Cd、Cu、zn存在潜在的严重积累作用,且AS含量超过了食用的参考剂量,需引起重视。人体暴露风险评估表明,食用红海湾海产品(口虾蛄除外)对人体潜在的健康风险相对较低,建议食用海产品量控制在25 g·d？1以内。Concentrations of 8 kinds of heavy metals including Cr, Co, Ni, Cu, As, Zn, Cd and Pb in the muscles of thirteen seafood from Honghai Bay were determined.Single factor pollution index(Pn) was applied to evaluate the contamination status of these organisms.Human health risk assessment model by US EPA was employed to evaluate the human dietary exposure.Metal pollution index(XMPI) was used for the enrichment effect of heavy metals on seafood.The results showed that the level of heavy metal in the marine organisms from Honghai Bay was low.Ni in crustacean and Cu, Zn in fish and Cr in mollusk were slightly polluted while Cr in fish and crustacean was moderately polluted.It should be highlighted that Oratosquilla oratoria showed a strong accumulative capacity for Cu, Zn and Cd.The level of As was beyond the reference dose.The results of human exposure risk assessment indicated that consumption of seafood(except Oratosquilla oratoria) would not pose a risk to humans.Suggested daily amount of seafood consumption should be limited to be less than 25 g·d?1.中国博士后科学基金(2012M510201); 中国科学院百人计划资助项

Nursing of a patient undergoing confocal laser endomicroscopy (1例共聚焦激光显微内镜检查术患者的护理配合体会)

To retrospectively analyze the clinical data of a patient with confocal laser endomicroscopy, and summarize nursing measures such as preoperative preparation, intraoperative coordination, postoperative care of adverse reaction care, psychological care and other targeted nursing interventions. It is required to carried comprehensive nursing interventions to reduce patient discomfort and ensure the success of confocal laser endomicroscopy. (本文总结1例行共聚焦激光显微内镜检查术患者的护理配合要点, 包括术前准备、术中配合以及术后常规护理、不良反应护理、心理护理等针对性护理措施, 以减轻患者不适症状, 保障患者共聚焦激光显微内镜检查的顺利完成。

黄腹角雉的人工繁殖和雏鸟生长发育

黄腹角雉 （Tragopan cobati） 是列入世界濒危物种的我国特产珍禽,国家一类保护动物。由于典型自然栖息地急剧缩小以及自然繁殖率极低 （郑光美等,1985）,探索在人工饲养下繁育是拯救这一濒危物种的一项迫切任务。黄腹角难在饲养条件下很难获得受精卵,国内动物园尚无繁殖成功的记录