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This research considers the mathematical relationship between concentration of Chla and seven environmental factors, i.e. Lake water temperature (T), Secci-depth (SD), pH, DO, CODMn, Total Nitrogen (TN), Total Phosphorus (TP).Stepwise linear regression of 1997 to 1999 monitoring data at each sampling point of Qiandaohu Lake yielded the multivariate regression models presented in this paper. The concentration of Chla as simulation for the year 2000 by the regression model was similar to the observed value. The suggested mathematical relationship could be used to predict changes in the lakewater environment at any point in time. The results showed that SD, TP and pH were the most significant factors affecting Chla concentration. 相似文献
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赵晓慧 《小学生作文辅导(作文与阅读版)》2006,(5)
从cón$前qián,有yǒu一yí座zuò美měi丽lì的de大dà花huā园yuán。里lǐ面miàn长zhǎn$着zhe一yì群qún小xiǎo松sōn$树shù,小xiǎo松sōn$树shù的de周zhōu围wéi还hái有yǒu一yì些xiē美měi丽lì而ér名mín$贵$uì的de花huā草cǎo。有yǒu一yì天tiān,一yì 相似文献
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赵晓慧 《教育界(基础教育)》2019,(3):97-98
医学遗传学属于实践性、综合性、专业性较强的一门学科,其内容抽象,深奥,且涉及面广,采用传统授受制教学模式效果欠佳。病案导入法是提升学生综合素质与课堂教学质量的一种新型教学模式,对提高医学遗传学教学质量具有积极的促进作用。文章探究了病案导入法在医学遗传学教学中的应用策略,旨在全面提升医学遗传学教学质量。 相似文献
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面对每天都要上下的楼梯,你会想到什么呢?作者的断想令人眼前一亮。他将“上楼”“下楼”“拐角”“顶楼”四个方面与人生联系作比.赋予了平凡的楼梯以许多不平凡的意义。所比都形象贴切,蕴涵着深刻的人生哲理,发人深思,耐人寻味。文章巧妙的构思、精致的结构值得同学们学习、体会。[第一段] 相似文献
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This research considers the mathematical relationship between concentration of Chla and seven environmental factors, i.e. Lake water temperature (T), Secci-depth (SD), pH, DO, CODMn, Total Nitrogen (TN), Total Phosphorus (TP). Stepwise linear regression of 1997 to 1999 monitoring data at each sampling point of Qiandaohu Lake yielded the multi-variate regression models presented in this paper. The concentration of Chla as simulation for the year 2000 by the regression model was similar to the observed value. The suggested mathematical relationship could be used to predict changes in the lakewater environment at any point in time. The results showed that SD, TP and pH were the most significant factors affecting Chla concentration. 相似文献
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素质教育要求教师把学生从传统的被动的受教育地位转变到主动的求知地位上来.在教学活动中,做到“教、学、做”合一。教师不仅要向学生传授知识。更要引导学生养成自觉地寻求知识、获取知识的能力。因此。如何在课堂教学中发挥学生的主体作用,应成为教师课堂教学的一项重要内容。本文试就这一问题作一肤浅的探究。 相似文献
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