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Updated: Jun 26, 2026

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基于叶片图像的空气中的颗粒物在城市地区的表征及其对整治的影响

Ankesh Tiwari1,2, Triratnesh Gajbhiye3, Mohineeta Pandey1

  • 1Department of Botany, Guru Ghasidas Vishwavidyalaya, (A Central University) Koni, Bilaspur, C.G, 495009, India.

Scientific reports
|January 17, 2025
PubMed
概括

塞纳Siamea和Dalbergia Sissoo工厂有效地去除城市地区的空气中的颗粒物 (PM). 扫描电子显微镜确定这些物种是改善空气质量和创造可持续环境的最佳表现者.

关键词:
重金属是一种重金属.图片 J 图片 J 图片这就是为什么RSPM RSPM.这就是SEM-EDS.有毒元素 有毒元素城市绿化 城市绿化

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Linear Approximations01:23

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For a differentiable function of two variables, linear approximation estimates values near a known point by replacing the curved surface with its tangent plane. Consider the function\begin{equation*}f(x,y)=x^2+3y^2\end{equation*}near the point (2, 1). The exact value at this point is f(2, 1) = 22 + 3(1)2 = 4 + 3 = 7.The linear approximation of f(x, y)) near (a, b) is\begin{equation*}L(x,y)=f(a,b)+f_x(a,b)(x-a)+f_y(a,b)(y-b)\end{equation*}First, compute the partial derivatives: fx(x, y) = 2x and...