http://atmoschem.org.cn/index.php?action=history&feed=atom&title=ESE5102_lab_1 2026-05-09T13:01:13Z Revision history for this page on the wiki MediaWiki 1.23.17 http://atmoschem.org.cn/index.php?title=ESE5102_lab_1&diff=2845&oldid=prev 2024-02-13T01:01:23Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr style='vertical-align: top;'> <td colspan='2' style="background-color: white; color:black; text-align: center;">← Older revision</td> <td colspan='2' style="background-color: white; color:black; text-align: center;">Revision as of 01:01, 13 February 2024</td> </tr><tr><td colspan="2" class="diff-lineno">Line 18:</td> <td colspan="2" class="diff-lineno">Line 18:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Resources==</div></td><td class='diff-marker'>&#160;</td><td style="background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;"><div>==Resources==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>*<del class="diffchange diffchange-inline">拟合可以用Excel粗略完成。也可以用Matlab等软件的</del>[https://cn.mathworks.com/help/optim/ug/least-squares-model-fitting-algorithms.html?requestedDomain=www.mathworks.com 拟合工具库]做最小方差拟合。</div></td><td class='diff-marker'>+</td><td style="color:black; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>*<ins class="diffchange diffchange-inline">推荐用Python画图及拟合。也可以用Matlab等软件的</ins>[https://cn.mathworks.com/help/optim/ug/least-squares-model-fitting-algorithms.html?requestedDomain=www.mathworks.com 拟合工具库]做最小方差拟合。</div></td></tr> </table>

Atmoschem http://atmoschem.org.cn/index.php?title=ESE5102_lab_1&diff=2838&oldid=prev 2024-02-12T05:30:38Z

<p>Created page with &quot;=Size distributions, integral quantities, and fitting to a lognormal distribution= ==Dataset== The dataset contains actual aerosol size distributions measured by the Scannin...&quot;</p> <p><b>New page</b></p><div>=Size distributions, integral quantities, and fitting to a lognormal distribution=<br /> <br /> <br /> ==Dataset==<br /> The dataset contains actual aerosol size distributions measured by the Scanning Mobility Particle Sizer (SMPS). Sent out by email.<br /> <br /> <br /> ==Questions==<br /> 任选观测期间的一个观测时间点：<br /> #根据资料画出n_N, n_N^e （以ln D为自变量的粒径分布）,n_N^o （以log D为自变量的粒径分布）。<br /> #根据资料画出n_N^o, n_S^o, n_V^o。<br /> #根据画出的n_N^o，做lognormal拟合（自选模态数）。说明你的拟合步骤。把拟合结果与观测的n_N^o画在同一张图上，比较观测和拟合结果的异同。<br /> #根据上题拟合出来的lognormal distributions，推算出S（S&amp;P Eq 8.49）和V（S&amp;P Eq 8.52）的理论分布。并把这两个分布与观测的n_S^o、n_V^o画在同一张图上，比较观测和理论分布的异同。<br /> <br /> '''''注意所有图形中，需标示清楚变量、单位、线条、观测时间等。'''''<br /> <br /> <br /> <br /> ==Resources==<br /> *拟合可以用Excel粗略完成。也可以用Matlab等软件的[https://cn.mathworks.com/help/optim/ug/least-squares-model-fitting-algorithms.html?requestedDomain=www.mathworks.com 拟合工具库]做最小方差拟合。</div>

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