From Lujiazui in Shanghai to New East Area in Chongqing--An exploration on Urban Land Use Form Oriented by the Public Traffic     

LIN Zhong- yu  HU Wen 《保鲜与加工》2006,(3):7-11

To develop the public traffic and setup a city form coordinated with the development of the public traffic has become a common sense in the full achievement of the city sustainable development. Due to the particularity of the exploration procedure and some difficulties in urban development, the policy on developing public traffic has not been realized in our country. Now it is on edge to solve these problems, particularly in the new area of development. In this article, the authors intend to find a practical way of establishing a ciity development mode with adapting the public traffic development by contrasting Lujiazui new area in Shanghai and the new east area in Chongqing.  相似文献   

Study on Design of Bio-clean Operating Room     

YANG Zhi wei  LI Bi yu 《保鲜与加工》2001,(4):20-25

The design of Bio-clean operating room in modern hospital is quite different from that of traditional operating room. This paper discusses three aspects of Bio-clean operating room design: air clean standard and air purification, interior equipment system and interior finish. It is hoped that this discussion will conduce to later designs.  相似文献   

The Application of Pre-splitting Blasting to Excavation on High Slope in Soft Rock Section     

KANG Hui ming  LI Xiao hong  LI Tong lin  JIN Xiao guang  LU Yi yu 《保鲜与加工》2001,(1):47-50

Based on analyzing about blasting mode of slope in the construction of road, the paper shows that pre splitting blasting is mostly suitable in the section of severely weathering soft rock with developed joints and fractures, introduced the laying out about the hole of pre splitting blasting that can apply in the high slope of the expressway in the section, and designed the parameter. The practice shows that it gained favourable effect by this method.  相似文献   

Brightness and Its Application     

CHEN Zhong lin  LIU Wei  YANG Chun yu 《保鲜与加工》2001,(6):30-32

This paper provides a conception of brightness and puts stress upon application of brightness to science of illuminating engineering and actual illuminating engineering.  相似文献   

Study on Genetic Fingerprinting Technique of Microbial Communities     

YE Jiang yu  LUO Gu yuan 《保鲜与加工》2003,(3):147-153

The 99% of all microorganisms in naturecannot be isolated by standard culture methods without conspicuous external characters to classify them morphologically. In addition, classification based on physiological or biochemical features are often fuzzy. Molecular techniques are used for uncultured microorganisms to explore the diversity of microbial communities and novel resources without the need of cultivation. DNA dynamics and cloning of PCR products obtained from environmental DNA is now routinely used to identify microbial populations in microbial ecology. For practical reasons the approach is not suited to study the complex dynamics of microbial communities in environment. Genetic fingerprinting techniques are better tools, which give complement for the traditional microbiological methods. The methods are rapid and relatively easy to perform, and they allow the simultaneous analysis of multiple samples, which makes it possible to compare the genetic diversity of microbial communities from different habitats, or to study the behaviour of individual communities over time.  相似文献   

江苏省水稻节水灌溉技术推广模式     

俞双恩  张展羽  陶长生  王菊 《灌溉排水学报》2001,20(3):33-36,40

针对江苏省稻作区水资源、土壤、气候的特点 ,选择浅湿灌溉、浅湿调控灌溉、控制灌溉、水稻旱作灌溉等 4种技术因地制宜进行推广。在灌溉过程中 ,建立和完善了一整套的组织措施和技术措施 ,形成了江苏省水稻节水灌溉技术推广模式 ,取得了显著的效果 ,丰富了水稻节水灌溉技术推广的内容  相似文献   

植物生长调节剂、基质对三个品种费约果扦插生根的影响     

钟亚丽  王丹  张猛  韩俐羽  崔正旭 《中国果业信息》2018,47(3)

选取五年生健壮费约果树为母株,采用L9(33)正交设计法研究植物生长调节剂、基质对三个品种费约果半木质化枝条扦插生根的影响。本试验结果表明：不同品种、植物生长调节剂和基质处理的生根的影响呈显著性水平。影响费约果扦插枝条生根率因素的主次顺序为品种>植物生长调节剂>基质;影响根长因素的主次顺序为基质>植物生长调节剂>品种;影响插穗根数的因素主次顺序品种>基质>植物生长调节剂。Gemini品种经1000 mg/L ABT浸泡两分钟,以腐叶土+珍珠岩为基质,生根效果最好,生根率为70.00%,平均根长为8.85 cm,平均根数为10.22条/穗;Unique品种经1000 mg/L ABT浸泡两分钟,以腐叶土+蛭石为基质,生根效果较好,生根率为56.67%,平均根长为9.32 cm,平均根数为12.33条/穗;Coolidge品种生根率低,均≤20 %。  相似文献   

澜沧江囊谦段夏秋季浮游植物群落结构初步研究   总被引：5，自引：1，他引：5  

陈燕琴  申志新  刘玉婷  李柯懋 《水生态学杂志》2012,33(3):60-67

2011年夏季(6月)和秋季(9月)对澜沧江囊谦段的浮游植物进行初步研究。结果表明,澜沧江囊谦段浮游植物共计4门、57种(属);其中,硅藻门种类最多,为33种(属),占总种类数的57.9%;其次是绿藻门,为13种(属),占22.8%,蓝藻门10种(属),占17.5%,甲藻门仅检到1种,占1.8%。夏秋两季澜沧江囊谦段均以喜低温的硅藻为主,绿藻、蓝藻种类秋季多于夏季,甲藻仅在夏季出现。浮游植物优势种以硅藻为主,占75.0%,种类有尖针杆藻(Synedra acus)、普通等片藻(Diatoma vulgare)、舟形藻(Navicula sp.)、桥弯藻(Cymbella sp.)、曲壳藻(Achnanthes sp.)、异极藻(Gomphonem sp.)、颤藻(Oscillatoria sp.)和席藻(Phormidium sp.)。浮游植物数量为13.26×104～375.59×104个/L,平均数量99.36×104个/L;生物量为0.0445～1.9972mg/L,平均0.4915mg/L。浮游植物数量和生物量均以硅藻最高,分别占总数量的61.2%和总生物量的71.3%。分析显示,各采样点浮游植物多样性指数、均匀度指数较高,均值分别为2.24、0.48;表明该河段浮游植物群落比较稳定,种类分布较为均匀,体现了贫营养型河流的特征,水域环境良好。  相似文献   

稻、鱼、鸭、菜复合生态模式的建立与应用   总被引：4，自引：0，他引：4  

唐洪玉  雷大强 《水产科学》2001,20(3):19-20

1998－1999年在贵州省石阡县进行了稻、鱼、鸭、菜复 生态模式示范，示范面积12hm^2，获得了平均产鲜鱼750kg/hm^2、瓜果1650kg/hm^2、成鸭225只／hm^2，增产水稻750kg/hm^2的良好效益。本文阐述了“稻、鱼、鸭、菜”多元复合系统的生态学原理及生产技术要点。  相似文献   

辽宁省葠窝水库水质现状与渔业性能评价   总被引：1，自引：0，他引：1  

齐鹤  于伟君  石俊艳  王晓光  寇凌霄  魏洪祥  宣明春 《水生态学杂志》2011,32(1):129-133

近年来,葠窝水库流域综合管理提高了水库水质状况,为了给下一步的渔业生产提供科学依据,在2008-2009年对葠窝水库6个代表性断面进行了4次采样调查和实验室分析,并采用水质综合评价方法对葠窝水库水质进行评价。检测结果表明水质状况总体有所好转,主要污染物为非离子氨和重金属铜,其他指标正常。采用流域综合水质指数法对水库总体水质状况进行评价,水库水质指数为4.33,为Ⅳ类水质;综合考虑水库理化特征、库龄和形态等,评价葠窝水库属中营养类型。通过对葠窝水库进行渔业水质分析发现,库区大部分地区符合水产养殖基本要求,建议在局部科学发展渔业生产。  相似文献