基于主成分分析法的浑河抚顺段多环芳烃来源分析
nP/(nP+BaP)、BaA(BaA+Chry)和Fla(Fla+Pyr)等比值法进行分析,其标准为:InP/(InP+BghiP)
数形结合思想在解题中的应用
The application of the combination of number and shape in solving problemsAbstract Mathematics is a science that studies the relationship between numbers and spatial forms.The idea...
OntheEffectiveApplicationofCommunicativeLanguageTeachinginMiddleSchoolEnglishTeaching
毕业论文(设计)AcknowlegementsI would like to express thanks to all the people who helped mein the process of writing this thesis.First of all,special gratitude should be shown to...
从《刮痧》看中美文化的差异
北京理工大学珠海学院2020届本科生毕业论文毕业论文诚信承诺书本人郑重承诺:我所呈交的毕业论文Differences betweenChinese and American Culture in Guasha是在指导教师的指导下,独立开展研...
城镇化进程中失地农民生活现状研究——以四川省资阳市雁江区失地农民为例
研究结果分析。根据统计和处理的数据结果,结合实地考察的经历,对资阳市雁江区失地农民问题进行讨并得出结果。第六部分是对策建议。在对现状、问题及原因进行深入分析的基础上,分别从制度层面...
环境会计信息披露存在的问题与对策分析
AbstractFrom the development of environmental accounting in the world,is the first intothe practice of environmental accounting information disclosure in our country.Thetheory of e...
α-半乳糖苷酶基因工程菌的开发
北京理工大学珠海学院16届本科生毕业论文Development of a-galactosidase producing strainAbstracta -Galactosidase (EC 3.2.1.22),is one kind of enzyme that hydrolyze non-reducingtermina...
非晶合金的热塑性成型以及在微透镜模具中的应用
AbstractAmorphous alloy is a kind of metal material formed under the condition of fast cooling.Compared with the traditional crystalline alloy,amorphous alloy has excellent mechani...
基于原始-对偶内点法寻优的波阻抗稀疏反演方法
ABSTRACTABSTRACTThe deconvolution of seismic data and impedance inversion are keytechnologies to improve the resolution,reservoir prediction and discrimination.Impedance is the phy...
数学核心素养下的中考几何解答题的分析研究–以福建中考为例
AbstractThis paper mainly analyzes and studies the geometry problems in middleschools from the perspective of the core accomplishment of mathematics.First of all,it introduces the ...












