• 不 限
  • 期刊论文
  • 硕博论文
  • 会议论文
  • 报 纸
  • 英文论文
  2. 您的位置
  3. 首页
  4. 期刊论文
  5. Natural Radioactivity Assessment and Radiological Hazards in Soils from Qarun Lake and Wadi El Rayan

Natural Radioactivity Assessment and Radiological Hazards in Soils from Qarun Lake and Wadi El Rayan

来源 :土壤科学期刊(英文) | 被引量 : 0次 | 上传用户：lifenfeng
【摘 要】
：
The activity concentrations of naturally occurring 238U, 232Th and 40K in surface soils along Qarun Lake and Wadi El Rayan located in Faiyum, Egypt were determi
【作 者】
：
Saher M. Darwish Samia M. El-B 
【机 构】
：
NuclearPhysicsLaboratory,PhysicsDepartment,PhysicsDepartment
【出 处】
：
土壤科学期刊(英文)
【发表日期】
：
2013年7期
【关键词】
：
Natural RADIOACTIVITY RADIOLOGICAL Hazards HPGE Detector GAMMA-RAY Spectrometry 
下载到本地 , 更方便阅读
下载此文 赞助VIP
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The activity concentrations of naturally occurring 238U, 232Th and 40K in surface soils along Qarun Lake and Wadi El Rayan located in Faiyum, Egypt were determined. The measurements were carried out through gamma-ray spectrometry using a coaxial HPGe dete
其他文献
Community Structure, Diversity, Biomass and Net Production in a Rehabilitated Subtropical Forest in
Gangetic alluvial plain in north India constitutes significant proportions of barren sodic lands. A representative site, where afforestation was carried out dur
期刊
DIVERSITYCommunityStructureConcentrationofDOMINANCEBIOMASSProductionLITT
Effect of Petroleum Products on Soil Catalase and Dehydrogenase Activities
The effect of refined petroleum products on the activities of selected enzymes (catalase and dehydrogenase) was studied. There was a significant decrease (p ker
期刊
CATALASEACTIVITYDEHYDROGENASEACTIVITYKEROSENEDIESELEngineOilPETROLCatal
如何在化学教学中培养学生的自主学习能力
本文主要从培养学习兴趣，激发学习动机，对学生进行预习指导，鼓励学生自主学习，开展探究式教学，培养自主学习能力等方面来阐述在初中化学教学中，如何培养学生的自主学习能力。
期刊
化学教学自主
Variations in Swells along Eastern Arabian Sea during the Summer Monsoon
A study was carried out to find the variation in wave characteristics along the eastern Arabian Sea and the influence of swells in the nearshore waves at 3 loca
期刊
SEASSwellsWindWAVESArabianSEAMixedSEAStateWaveSpectrumSeasSwellsWin
Forest Reproductive Material and Conservation of Forest Genetic Resources in Croatia
Conservation of genetic diversity of forest tree species represents the foundation for sustainable forest management and preservation of natural structure of fo
期刊
FORESTGeneticResourcesInSITUandEXSITUMethodsCONIFERSandBroadleavedSp
知识型中小企业创业者胜任特征分析
[摘要] 本研究采用胜任特征模型的设计方法，选取14名知识型中小企业创业阶段的创业者，通过行为事件访谈、内容编码以及统计分析，建立了包括创业者的动机、个性以及知识技能的一般胜任特征模型和区分优秀创业者和普通创业者的优秀胜任特征模型。最后提出了创业者胜任特征如何影响创业业绩的模式图。　　[关键词] 创业 一般胜任特征模型 优秀胜任特征模型　　　　在当今呼唤创业精神的时代，对于创业者要具备什么样的素质
期刊
创业一般胜任特征模型优秀胜任特征模型
Selection Strategy for Chestnut (<i>Castanea sativa</i>Mill.) Families O
Genetic material originating from contrasting European chestnut (Castanea sativa) populations of Greece, Italy and Spain was evaluated in a common garden test s
期刊
CASTANEAsativaGrowthTraitsFamilyVariationGENETICParametersGENETICGainC
Prediction of the Site Index for a Subtropical Broad-Leaved Forest on Okinawa Island Using Topograph
Subtropical “Yambaru” forest, situated in the northern part of Okinawa Island of Japan, has a precious ecosystem inhabited by many endemic species. However, t
期刊
FORESTPRODUCTIVITYFORESTManagementDigitalELEVATIONModel(DEM)Ge-ographic
创新型大企业的战略联盟伙伴的选择研究
针对创新型大企业选择战略联盟伙伴的实际需要,提出改进的模拟退火遗传算法,引入倒位算子和企业间协同系数矩阵,来增强选择联盟伙伴的科学性。
期刊
创新型大企业战略联盟伙伴模拟退火遗传算法
细长丝杠加工方法的改进
当丝杠的螺纹大径与其长度之比为1∶30及其以上时,称为细长丝杠.由于细长丝杠的刚性差,在切削力作用下,工件容易产生弯曲变形和振动,导致常规方法加工难以达到设计要求,甚至
期刊
细长丝杠加工方法改进振动弯曲变形