中年自损话防范     

沈启学  徐利芬  应雪明 《台州学院学报》1996,(3)

中年人处于成果最多阶级,是事业的黄金时期。也是机体由盛转衰时期。为了使他们能发挥更大的作用,做好中年的自损保健预防工作,是我国当前一项非常重要的有现实意义的工作。  相似文献   

Effects of light and temperature conditions on flowering in Mat Rush     

沈伟其  张国平  奚利峰  桂文光 《浙江大学学报(A卷英文版)》2002,3(5):611-616

The effects of photoperiod and light intensity on flowering in Mat Rush cv. Gangshan 3 were studied. The results showed that treatments with longer day length stimulated flowering significantly and increased stem flowering percentage (SFP). Plants treated with low light intensity at early stage had substantially reduced florets per cyme, SFP, tillers per plant and stem length. At middle and late stage, low light intensity significantly reduced SFP. The principal climatic factors affecting SFP were as follows: mean temperatures (MT) of the third ten-day period (TDP) in December and of the second TDP in February, actual sunlight hours (SH) of the third TDP in February and precipitation of the third TDP in March. A nonlinear simulation model for SFP was established with experimental results and corresponding climatic data (see Eq. (2)). Simulation by the above equation yielded values the same as those observed from 1992 to 2000, indicating its accuracy in describing the relationship between flowering and light and temperature conditions. The interaction between vernalization and SH is also discussed in this paper. Project (No. 981105) supported by the Ningbo City Science Foundation, China  相似文献   

在改革创新中实现我国职业教育的科学发展     

翟玉荣  莘国保 《继续教育研究》2011,(6):32-34

针对目前我国职业教育存在的问题,应从富民、强国、提升国民素质的角度充分认识职业教育改革和发展的重要性,把职业教育作为我国教育发展的重点。面向经济社会发展要求,职业教育改革创新应当以制度为保障,提高职业教育管理水平;以质量为核心,完善职业教育体系;以改革为动力,增强职业教育的办学活力,实现我国职业教育的科学发展。  相似文献   

现代科技馆人才驱动平台发展模式研究:以山西省科学技术馆为例          下载免费PDF全文

路建宏  孙昕唱  周慎  仝鲜梅 《科学传播与科学教育》2023,(1):98-112

科学技术馆作为我国实施“科教兴国”战略的重要基础设施,是我国科普事业的重要组成部分,其展览、教育、培训、休闲等功能使其成为天然的科学聚集地和扩散场,肩负着普及科学知识、弘扬科学精神、传播科学方法的重要使命。本文采用传播学的传者视角,以山西省科学技术馆为个案,就其建立以人才驱动的发展模式,内容侧的展陈丰富性与脉络逻辑性,形式侧的方式多样性与展示互动性的独特科学传播平台进行深入探讨,并从以人才为核心、主题选择、分众化传播和科技馆生态体系构建等方面对科技馆科学普及和社会教育功能进行优化重组,为培养新时代科学传播人才、建立科学合理的运行机制、形成多元包容的传播生态提供可行案例基础和实践路径。  相似文献   

南阳市园林植物灯下昆虫群落结构分析   总被引：1，自引：0，他引：1  

申光豫  王刘豪  王运兵 《河南职业技术师范学院学报》2011,(4):32-35,41

通过对南阳市园林绿地植物7~8月份诱虫灯下昆虫群落的调查,摸清了其常见的昆虫种类,结果表明：园林绿地植物灯下昆虫群落包括5个目,21科,50种;其中有害虫45种,害虫天敌4种和杂食性昆虫1种.同时,根据害虫的发生数量及对园林绿地植物的危害程度,从群落的角度分析了园林绿地植物害虫的优势种（类）,主要有暗黑鳃金龟、淡剑夜蛾、茶长卷蛾、斜纹夜蛾、土蝽等;从生态功能分类的角度把这些绿地害虫分为植食性昆虫、肉食性昆虫、传粉昆虫、杂食性昆虫4大类,其中这些害虫主要来自于鳞翅目、同翅目、直翅目、鞘翅目、半翅目五个目,为园林绿地植物在群落水平上进行综合治理提供了理论依据.  相似文献   

狗血浆中哌唑嗪的含量测定方法及其在药代动力学中的应用     

张妮萍  余书勤  王辉  申艳艳  徐师  张玲  许茜 《东南大学学报》2011,(2):217-221

建立并评价了一种简单灵敏的方法测定狗血浆中PZS的含量.该方法利用HPLC-FLD结合乙醚萃取的前处理方法,采用C18色谱柱(150 mm×4.6 mm,5 μm),流动相为30％乙腈和70％乙酸-乙酸钠缓冲液(pH=3.6),荧光检测器的激发波长为258 nm,发射波长为387 nm,在流动相流速为1.0 mL/mi...  相似文献   

一种认知无线电自适应双门限能量检测算法     

苏倩  宋铁成  胡静  沈连丰 《东南大学学报》2011,(4):351-356

针对传统频谱感知方法易受噪声波动影响的缺点,提出了一种认知无线电自适应双门限能量检测算法.该算法基于双门限能量检测,通过比较认知用户接收的能量值和预定义的门限值,判断当前信道状态并自适应地选择一轮感知或两轮感知.推导了所提算法的检测概率、虚检概率和感知时间的性能表达式,并采用蒙特卡洛仿真得到信噪比与检测概率、感知时间的...  相似文献   

分簇无线传感器网络中提高网络连通性的协作算法     

李文峰  邵震洪  沈连丰 《东南大学学报》2011,27(1):1-7

针对分簇无线传感器网络提出了一种基于虚拟天线阵列的协作算法.该算法通过节点间的协作来提高网络连通性,所有节点均按照泊松Voronoj网格模型进行分簇,簇首根据通信链路决定是否激活节点协作;若节点协作算法被激活,簇首从其成员中选择适合的节点作为协作节点共同组成虚拟天线阵列.通过协作,可扩展簇间的通信范围从而与远方节点直接...  相似文献   

Ecological Mural as Community Reconnection     

Young Imm Kang Song  Jo Ann Gammel 《The International Journal of Art & Design Education》2011,30(2):266-278

Murals are particularly visually captivating forms of public art due to their size and accessibility. Mural images also capture public attention and provoke viewers to explore layers of meaning and find hidden stories. They are often in places that people come to visit, study, play, congregate and discuss matters that may relate to the content of the mural. To this end, murals can be effective tools for helping communities think about their environmental issues. This article discusses the Mystic River mural project in Somerville, Massachusetts, USA. It addresses how the local art councils, mural artists, local students, community members and non‐profit organisations collaborated to carry out this ongoing mural project. The purpose of this research is to examine how Mystic River eco‐murals were created, what challenges and benefits the eco‐murals provided, how local social concerns were represented through the eco‐murals, how eco‐murals can continue to promote environmental awareness and inspire youth about their community and the local environment, and how the mural can continue to reflect or affect the meaning of the place. This process can serve as an example for other communities that seek to address their environmental concerns through public art.  相似文献   

就业、创业教育模式新探——以赛扶教育为例   总被引：2，自引：1，他引：1  

佴康 《扬州大学学报(高教研究版)》2011,15(2):51-54

赛扶又称＂全球大学生企业家联盟＂,是一个全球性的大学生公益创业实践组织,对大学生的创业、就业素质培养和实践教育具有重要作用。探求赛扶组织成功的奥秘,用心理学、教育学的方法配合调查问卷结果分析其利用社会资源,构建就业、创业教育实践平台模式;体验式就业、创业教育的模式;创业精英意识培养的模式,并对现在的就业、创业教育中的瓶颈问题提出可行性方案,可以帮助学生更好地进行创业、就业。  相似文献