相关实验视频

Updated: Sep 21, 2026

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry
08:23

Real-time Breath Analysis by Using Secondary Nanoelectrospray Ionization Coupled to High Resolution Mass Spectrometry

Published on: March 9, 2018

9.0K

在15年期间 (2006-2021) 用PM2.5受体建模评估中国大城市的空气质量变化 (2006-2021年)

A Canals-Angerri1, W Lv2, X Zhuang3

  • 1Institute of Environmental Assessment and Water Research (IDAEA), CSIC, Barcelona, Spain; Department of Chemical Engineering and Analytical Chemistry, Universitat de Barcelona, Spain.

Environmental pollution (Barking, Essex : 1987)
|October 27, 2023
PubMed
概括

武汉通过控制措施显著降低了颗粒物 (PM2.5) 污染,PM2.5减少了65%. 然而,二次颗粒物和逃逸排放需要进一步采取行动,以满足卫生标准.

关键词:
大气中的颗粒物.地质化学 地质化学在PM中{2.5)来源分配的分配方式城市背景 城市背景武汉 武汉 武汉 武汉 武汉

更多相关视频

Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India09:33

Visualizing Field Data Collection Procedures of Exposure and Biomarker Assessments for the Household Air Pollution Intervention Network Trial in India

Published on: December 23, 2022

2.3K
Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters05:18

Measuring Carbon Content in Airway Macrophages Exposed to Carbon-Containing Particulate Matters

Published on: July 12, 2024

324

相关概念视频

Linear Approximations01:23

Linear Approximations

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...