14 research outputs found

    A company's OA System Analysis and Design

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    为了能更好地管理公司业务,满足公司在线处理各种办公业务的需求,开发了该软件系统——OA协同办公系统。 随着网络的发展,现在的办公也都逐步转向网上在线服务,这样可以很方便地进行各种办公业务的处理。办公自动化(OfficeAutomation,简称OA)是将现代化办公和计算机网络功能结合起来的一种新型的办公方式。企业办公自动化系统在此基础上实现企业的快速运转和交流,进而有效提高企业办公效率。 本系统采用Struts、JSP、JavaBean技术设计开发并采用数据库Mysql完成数据库设计及连接。最终实现一个能够满足企业办公网络化,自动化的管理需求,提高企业内部的管理水平的系统。该系统能全面提升...In order to better manage the company's business, to meet the needs of online processing various kinds of office business, has developed the software system, OA office system together. With the development of the network, the office is now gradually turned to online service, it can be easily for the processing of various kinds of office business. OA (Office Automation, hereinafter referred to as ...学位:工程硕士院系专业:软件学院_工程硕士(软件工程)学号:X201323235

    宜昌庙河钙结岩记录的古环境变化

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    对位于三峡地区黄陵背斜核部的宜昌庙河钙结岩体进行了沉积学、岩石学分析,识别出土壤钙结岩和地下水钙结岩。对土壤钙结岩进行了胶结物的分离、ESR年龄测试和碳氧稳定同位素分析,结果表明,庙河土壤钙结岩中方解石胶结物的&delta;~(13)C值相对围岩而言明显偏负,多数样品&delta;~(18)O值则呈不同程度偏正的趋势。土壤钙结岩主要形成于冰期,计算表明它们形成时期的古气温多为8~12℃,年均降雨量多为760~770mm,C_4植物占约84%的绝对优势。由于钙结岩的形成过程涉及到诸多影响碳酸盐化学过程和相应土壤碳酸盐稳定同位素组成的因素,得出的认识可能存在一定程度的不确定性。</p

    Enhancement of Coastal Blue Carbon: Concepts, Techniques, and Future Suggestions

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    The blue carbon function and carbon sequestration potential of coastal ecosystems, such as salt marshes, mangroves and seagrass beds, have emerged as one of the long-term solutions to mitigate global climate change. However, the blue carbon sequestration technology has been neglected in most ecological protection and restoration projects of coastal ecosystems. Besides, in the process of project implementation and management, the dynamic monitoring and systematic evaluation of carbon sink are imperfect. This study proposes the concept of enhancement of coastal blue carbon, focusing on four key technologies of soil carbon emission reduction technology, plant carbon sequestration technology, soil microbial carbon sequestration technology, and carbon deposition and burial technology, to explore the technology system and approach to enhance coastal blue carbon. This study suggests accelerating forward-looking layout and system research, mainly by developing technologies of coastal blue carbon sequestration, achieving synergies between ecological conservation and restoration and carbon sequestration, strengthening the monitoring and evaluation of carbon sequestration and sink enhancement, and establishing a longterm management mechanism for the development of coastal blue carbon sink, which would provide theoretical and technical support for the formulation of coastal blue carbon and the enhancement of carbon sink function, and play an active role in enhancing ecological carbon sink capacity and achieving the goal of carbon peak and carbon neutrality in the future

    表面化学分子吸附增强多孔硅发光效率

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    报道了HNO_3氧化的多孔硅表面吸附9-氰基蒽(9-CA)分子后的发光增强现象

    北疆矿产资源开发与可持续发展的环境问题研究

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    在新疆矿产资源开发过程中,存在着较为严重的环境污染、生态破坏、资源浪费和国有资产流失问题,而且生态破坏和国有资产流失问题比环境污染问题更为严重。课题首次对额尔齐斯河流域金矿和稀有金属矿的氰化物、汞和放射性污染问题进行了较为系统的定量研究,国内外首次对自然生态环境中氰化物的自然讲解规律进行了定量研究和模式研究。为根据氰化物的环境容量,制定防灾措施和环境保护标准提供了依据,提出了矿业活动中防止氰化物、汞和放射性污染的具体技术和管理建议,提出了整治额尔齐斯河流域生态环境的建议,提出了改革矿业体制,实现矿业可持续发展的政策性建议。 成果类别: 基础理

    硅多条两维位置灵敏探测器的研制

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    描述了用平面工艺技术研制基于硅多条的两维位置灵敏探测器的制备工艺技术及性能测试初步结果。这种探测器的灵敏面积为50 mm×50 mm。P掺杂面被等分成相互平行的长度为50mm,宽度为3mm的16条,相邻条之间的间隔为100μm。硅条P掺杂层是一层均匀分布的电阻层,利用电荷分除法,可以得到入射粒子在该条上的位置(Y位置)。当探测器工作在全耗尽偏压下时,大部分单条的反向漏电流<30nA。对239Puα粒子得到能量分辨率<2.5%,位置分辨<0.5 mm
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