相关实验视频

Updated: Jul 25, 2026

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace
09:03

Assessment of Methane and Nitrous Oxide Fluxes from Paddy Field by Means of Static Closed Chambers Maintaining Plants Within Headspace

Published on: September 6, 2018

13.0K

农业来源对巴基斯坦拉合尔空气质量的影响,基于CMAQ模拟

Arshad Abbasi1,2,3, Chunsheng Fang4,5,6, Ju Wang1,2,3

  • 1Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun, 130021, China.

Environmental science and pollution research international
|October 8, 2025
PubMed
概括

农业活动对拉合尔的空气质量产生重大影响,对PM2.5污染作出了重大贡献,特别是在高峰期. 这项研究使用先进的建模量化了这些排放,以告知缓解策略.

关键词:
农业来源 农业来源拉合尔 拉合尔 拉合尔场景模拟的场景模拟.源排放量库存 源排放量库存 源排放量库存这是WRF-CMAQQ.

更多相关视频

Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure06:52

Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure

Published on: July 19, 2018

6.8K
Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions05:45

Composition and Distribution Analysis of Bioaerosols Under Different Environmental Conditions

Published on: January 7, 2019

12.0K

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...