<?xml version="1.0"?>
<feed xmlns="http://www.w3.org/2005/Atom" xml:lang="en">
	<id>https://www.sternwarte.uni-erlangen.de/wiki/index.php?action=history&amp;feed=atom&amp;title=Eletromagnetic_spectrum_%28xfig_example%29</id>
	<title>Eletromagnetic spectrum (xfig example) - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://www.sternwarte.uni-erlangen.de/wiki/index.php?action=history&amp;feed=atom&amp;title=Eletromagnetic_spectrum_%28xfig_example%29"/>
	<link rel="alternate" type="text/html" href="https://www.sternwarte.uni-erlangen.de/wiki/index.php?title=Eletromagnetic_spectrum_(xfig_example)&amp;action=history"/>
	<updated>2026-04-16T14:40:13Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.35.7</generator>
	<entry>
		<id>https://www.sternwarte.uni-erlangen.de/wiki/index.php?title=Eletromagnetic_spectrum_(xfig_example)&amp;diff=1424&amp;oldid=prev</id>
		<title>Niu: Created page with &quot;=== Eletromagnetic spectrum === center  &lt;pre&gt; require(&quot;isisscripts&quot;); %%%%%%%%%%%%%%%%%%%%%%%%%% %Define Constants   variable wavelength; % m variable...&quot;</title>
		<link rel="alternate" type="text/html" href="https://www.sternwarte.uni-erlangen.de/wiki/index.php?title=Eletromagnetic_spectrum_(xfig_example)&amp;diff=1424&amp;oldid=prev"/>
		<updated>2018-05-02T11:33:40Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;=== Eletromagnetic spectrum === &lt;a href=&quot;/wiki/index.php/File:Elmag.png&quot; title=&quot;File:Elmag.png&quot;&gt;800px|center&lt;/a&gt;  &amp;lt;pre&amp;gt; require(&amp;quot;isisscripts&amp;quot;); %%%%%%%%%%%%%%%%%%%%%%%%%% %Define Constants   variable wavelength; % m variable...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;=== Eletromagnetic spectrum ===&lt;br /&gt;
[[File:elmag.png|800px|center]]&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
require(&amp;quot;isisscripts&amp;quot;);&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
%Define Constants &lt;br /&gt;
&lt;br /&gt;
variable wavelength; % m&lt;br /&gt;
variable frequency; % 1/s = Hz&lt;br /&gt;
variable energy;&lt;br /&gt;
variable c = 299792458.0; %m/s&lt;br /&gt;
variable h_J = 6.62606957*10^(-34); % J·s&lt;br /&gt;
variable h_eV = 4.135667516*10^(-15); % eV*s&lt;br /&gt;
variable h_erg = 6.62606957*10^(-27); % erg*s&lt;br /&gt;
&lt;br /&gt;
variable give_wavelength=NULL;&lt;br /&gt;
variable give_frequency=22*10^9;&lt;br /&gt;
define to_rgb (r, g, b)&lt;br /&gt;
{&lt;br /&gt;
          return (r &amp;lt;&amp;lt; 16) | (g &amp;lt;&amp;lt; 8) | b;&lt;br /&gt;
}&lt;br /&gt;
xfig_new_color (&amp;quot;dark_gray&amp;quot;, 0x606060);&lt;br /&gt;
xfig_new_color (&amp;quot;orange&amp;quot;, 0xEF9F2E);&lt;br /&gt;
xfig_new_color (&amp;quot;dark_orange&amp;quot;, 0xF97305);&lt;br /&gt;
xfig_new_color (&amp;quot;pink&amp;quot;, 0xF90580);&lt;br /&gt;
xfig_new_color(&amp;quot;banana&amp;quot;,to_rgb(232,197,0));&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
define wavelength2frequency(wavelength)&lt;br /&gt;
{&lt;br /&gt;
frequency = (1./wavelength)*c;&lt;br /&gt;
return frequency;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define frequency2wavelength(frequency)&lt;br /&gt;
{&lt;br /&gt;
wavelength = (1./frequency)*c;&lt;br /&gt;
return wavelength;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
define frequency2energy_J(frequency)&lt;br /&gt;
{&lt;br /&gt;
energy = frequency*h_J;&lt;br /&gt;
return energy;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define frequency2energy_eV(frequency)&lt;br /&gt;
{&lt;br /&gt;
energy = frequency*h_eV;&lt;br /&gt;
return energy;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define frequency2energy_erg(frequency)&lt;br /&gt;
{&lt;br /&gt;
energy = frequency*h_erg;&lt;br /&gt;
return energy;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
define energy2frequency_J(energy)&lt;br /&gt;
{&lt;br /&gt;
frequency = energy/h_J;&lt;br /&gt;
return frequency;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define energy2frequency_eV(energy)&lt;br /&gt;
{&lt;br /&gt;
frequency = energy/h_eV;&lt;br /&gt;
return frequency;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define energy2frequency_erg(energy)&lt;br /&gt;
{&lt;br /&gt;
frequency = energy/h_erg;&lt;br /&gt;
return frequency;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
define energy2wavelength_J(energy)&lt;br /&gt;
{&lt;br /&gt;
wavelength = h_J*c/energy;&lt;br /&gt;
return wavelength;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define energy2wavelength_eV(energy)&lt;br /&gt;
{&lt;br /&gt;
wavelength = h_eV*c/energy;&lt;br /&gt;
return wavelength;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define energy2wavelength_erg(energy)&lt;br /&gt;
{&lt;br /&gt;
wavelength = h_erg*c/energy;&lt;br /&gt;
return wavelength;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
define wavelength2energy_J(wavelength)&lt;br /&gt;
{&lt;br /&gt;
energy = h_J*c/wavelength;&lt;br /&gt;
return energy;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define wavelength2energy_eV(wavelength)&lt;br /&gt;
{&lt;br /&gt;
energy = h_eV*c/wavelength;&lt;br /&gt;
return energy;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%&lt;br /&gt;
define wavelength2energy_erg(wavelength)&lt;br /&gt;
{&lt;br /&gt;
energy = h_erg*c/wavelength;&lt;br /&gt;
return energy;&lt;br /&gt;
}&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
&lt;br /&gt;
variable wavelength_range = [99., 1e-21];&lt;br /&gt;
variable plotwidth = 30;&lt;br /&gt;
variable wavecol = &amp;quot;black&amp;quot;;&lt;br /&gt;
variable freqcol=&amp;quot;black&amp;quot;; variable energycol = &amp;quot;black&amp;quot;; variable energycol2 = &amp;quot;black&amp;quot;;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
variable spectrum = xfig_plot_new(plotwidth,20);&lt;br /&gt;
&lt;br /&gt;
spectrum.world(0,20,0,20);&lt;br /&gt;
spectrum.x1axis(;off);spectrum.x2axis(;off);spectrum.y1axis(;off);spectrum.y2axis(;off);&lt;br /&gt;
&lt;br /&gt;
variable wave = xfig_plot_new(plotwidth,1);&lt;br /&gt;
wave.world(wavelength_range[0],wavelength_range[1],0,1; color=wavecol);&lt;br /&gt;
wave.y1axis(;off); wave.y2axis(;off);wave.x2axis(;off);&lt;br /&gt;
wave.xlabel(&amp;quot;$\lambda$ [m]&amp;quot;R; color= wavecol);&lt;br /&gt;
variable major_ticks = [wavelength_range[1]:0:100];&lt;br /&gt;
variable minor_ticks= [0:wavelength_range[1]:5];&lt;br /&gt;
&lt;br /&gt;
wave.x1axis(;log, color =wavecol, ticlabel_color=wavecol, major=major_ticks);&lt;br /&gt;
%if (give_wavelength!=NULL){wave.plot(give_wavelength, 0.1;sym=&amp;quot;+&amp;quot;, symcolor=&amp;quot;gray&amp;quot;);&lt;br /&gt;
%wave.xylabel(give_wavelength, 0.5, sprintf(&amp;quot;%.2e\n&amp;quot;,give_wavelength); color=&amp;quot;gray&amp;quot;);}&lt;br /&gt;
%if (give_frequency!=NULL){wave.plot(frequency2wavelength(give_frequency), 0.1;sym=&amp;quot;+&amp;quot;, symcolor=&amp;quot;gray&amp;quot;);&lt;br /&gt;
%wave.xylabel(frequency2wavelength(give_frequency), 0.5, sprintf(&amp;quot;%.2e\n&amp;quot;,frequency2wavelength(give_frequency)); color=&amp;quot;gray&amp;quot;);}&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
wave.plot([wavelength_range[0], 10*10^-3], [1, 1];color=&amp;quot;goldenrod&amp;quot;,forward_arrow, backward_arrow);&lt;br /&gt;
wave.xylabel(1,1.4, &amp;quot;RADIO&amp;quot;; color=&amp;quot;goldenrod&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
wave.add_object(xfig_new_polyline([10*10^-3,300*10^-6 ], [1, 1];forward_arrow, backward_arrow, color=&amp;quot;orange2&amp;quot;),&lt;br /&gt;
[10*10^-3,300*10^-6 ], [1, 1]) ; wave.xylabel(1.5*10^-3,1.4, &amp;quot;MICROWAVE&amp;quot;; color=&amp;quot;orange2&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
wave.add_object(xfig_new_polyline([300*10^-6, 750*10^-9], [1, 1];forward_arrow, backward_arrow, color=&amp;quot;red2&amp;quot;), &lt;br /&gt;
[300*10^-6, 750*10^-9], [1, 1]); wave.xylabel(10^-5,1.4, &amp;quot;IR&amp;quot;; color=&amp;quot;red2&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
wave.add_object(xfig_new_polyline([750*10^-9, 390*10^-9], [1, 1]; forward_arrow, backward_arrow,color=&amp;quot;purple&amp;quot;),&lt;br /&gt;
[750*10^-9, 390*10^-9], [1, 1]) ; wave.xylabel(550*10^-9,1.4, &amp;quot;OP&amp;quot;; color=&amp;quot;purple&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
wave.add_object(xfig_new_polyline([390*10^-9, 10^-8], [1, 1]; forward_arrow, backward_arrow,color=&amp;quot;blue4&amp;quot;),&lt;br /&gt;
[390*10^-9, 10^-8], [1, 1]) ; wave.xylabel(5*10^-8,1.4, &amp;quot;UV&amp;quot;; color=&amp;quot;blue4&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
wave.add_object(xfig_new_polyline([10^-8, 100*10^-12], [1, 1]; forward_arrow, backward_arrow, color=&amp;quot;dodgerblue&amp;quot;), &lt;br /&gt;
[10^-8, 100*10^-12], [1, 1]); wave.xylabel(10*10^-10,1.4, &amp;quot;soft&amp;quot;; color=&amp;quot;dodgerblue&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
wave.add_object(xfig_new_polyline([100*10^-12, 10*10^-12], [1, 1]; forward_arrow, backward_arrow,color=&amp;quot;teal&amp;quot;), &lt;br /&gt;
[100*10^-12, 10*10^-12], [1, 1]); wave.xylabel(35*10^-12,1.4, &amp;quot;hard X-rays&amp;quot;; color=&amp;quot;teal&amp;quot;);&lt;br /&gt;
wave.add_object(xfig_new_polyline([10*10^-12, wavelength_range[1]], [1, 1]; forward_arrow, backward_arrow, color=&amp;quot;forestgreen&amp;quot;), &lt;br /&gt;
[10*10^-12, wavelength_range[1]], [1, 1]);&lt;br /&gt;
wave.xylabel(10^-15,1.4, &amp;quot;$\gamma$-rays&amp;quot;R; color=&amp;quot;forestgreen&amp;quot;);&lt;br /&gt;
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%&lt;br /&gt;
spectrum.add_object(wave, 0 , 0 , 0 , 0);&lt;br /&gt;
%%%%&lt;br /&gt;
variable energy_range = xfig_plot_new(plotwidth,1);&lt;br /&gt;
energy_range.world(wavelength2energy_eV(wavelength_range[0]),wavelength2energy_eV(wavelength_range[1]),0,1; color=energycol);&lt;br /&gt;
energy_range.x1axis(;log, color=energycol, ticlabel_color=energycol); energy_range.y1axis(;off); energy_range.y2axis(;off);energy_range.x2axis(;off);&lt;br /&gt;
energy_range.xlabel(&amp;quot;E [eV]&amp;quot;R; color=energycol);&lt;br /&gt;
%if (give_wavelength!=NULL){energy_range.plot(wavelength2energy_eV(give_wavelength), 0.1;sym=&amp;quot;+&amp;quot;, symcolor=&amp;quot;gray&amp;quot;);&lt;br /&gt;
%energy_range.xylabel(wavelength2energy_eV(give_wavelength), 0.5, sprintf(&amp;quot;%.2e\n&amp;quot;,wavelength2energy_eV(give_wavelength)); color=&amp;quot;gray&amp;quot;);&lt;br /&gt;
%}&lt;br /&gt;
spectrum.add_object(energy_range, 0, 0, 0 , 1;depth=50);&lt;br /&gt;
&lt;br /&gt;
% variable energy_range2 = xfig_plot_new(plotwidth,1);&lt;br /&gt;
% energy_range2.world(wavelength2energy_erg(wavelength_range[0]),wavelength2energy_erg(wavelength_range[1]),0,1; color=energycol2);&lt;br /&gt;
% energy_range2.x1axis(;log, color=energycol2, ticlabel_color=energycol2); energy_range2.y1axis(;off); energy_range2.y2axis(;off);energy_range2.x2axis(;off);&lt;br /&gt;
% energy_range2.xlabel(&amp;quot;E [erg]&amp;quot;R; color=energycol2);&lt;br /&gt;
% if (give_wavelength!=NULL){energy_range2.plot(wavelength2energy_erg(give_wavelength), 0.1;sym=&amp;quot;+&amp;quot;, symcolor=&amp;quot;gray&amp;quot;);&lt;br /&gt;
% energy_range2.xylabel(wavelength2energy_erg(give_wavelength), 0.5, sprintf(&amp;quot;%.2e\n&amp;quot;,wavelength2energy_erg(give_wavelength)); color=&amp;quot;gray&amp;quot;);&lt;br /&gt;
% }&lt;br /&gt;
% spectrum.add_object(energy_range2, 0, 0, 0 , 2);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
% OPTIONAL AXIS&lt;br /&gt;
variable freq = xfig_plot_new(plotwidth,1);&lt;br /&gt;
freq.world(wavelength2frequency(wavelength_range[0]),wavelength2frequency(wavelength_range[1]),0,1; color=freqcol);&lt;br /&gt;
freq.x1axis(;log, color=freqcol, ticlabel_color=freqcol); freq.y1axis(;off); freq.y2axis(;off);freq.x2axis(;off);&lt;br /&gt;
freq.xlabel(&amp;quot;$\nu$ [Hz]&amp;quot;R; color=freqcol);&lt;br /&gt;
%if (give_wavelength!=NULL){freq.plot(wavelength2frequency(give_wavelength), 0.1;sym=&amp;quot;+&amp;quot;, symcolor=&amp;quot;gray&amp;quot;);&lt;br /&gt;
%freq.xylabel(wavelength2frequency(give_wavelength), 0.5, sprintf(&amp;quot;%.2e\n&amp;quot;,wavelength2frequency(give_wavelength)); color=&amp;quot;gray&amp;quot;);}&lt;br /&gt;
%if (give_frequency!=NULL){freq.plot(give_frequency, 0.1;sym=&amp;quot;+&amp;quot;, symcolor=&amp;quot;gray&amp;quot;);&lt;br /&gt;
%freq.xylabel(give_frequency, 0.5, sprintf(&amp;quot;%.2e\n&amp;quot;,give_frequency); color=&amp;quot;gray%&amp;quot;);}&lt;br /&gt;
spectrum.add_object(freq, 0, 0, 0 , 2;depth=50);&lt;br /&gt;
&lt;br /&gt;
%OPTIONAL EMPTY EM SPECTRUM&lt;br /&gt;
%spectrum.render(&amp;quot;spectrum.pdf&amp;quot;);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%OPTIONAL: HESS ENERGY RANGE&lt;br /&gt;
#iffalse&lt;br /&gt;
%%%%%%%%%%&lt;br /&gt;
% ADD GOOD HESS RANGES!&lt;br /&gt;
variable new = xfig_plot_new(plotwidth,6.5);&lt;br /&gt;
new.world(wavelength2frequency(wavelength_range[0]),wavelength2frequency(wavelength_range[1]),0,4; color=freqcol);&lt;br /&gt;
new.x1axis(;log, color=freqcol, ticlabel_color=freqcol,off); new.y1axis(;off); new.y2axis(;off);new.x2axis(;off);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
variable r_lo = 100e9;&lt;br /&gt;
variable r_hi=100e12;&lt;br /&gt;
new.shade_region(energy2frequency_eV(r_lo),energy2frequency_eV(r_hi),0,0.8;world10, fillcolor=&amp;quot;black&amp;quot;, fill=3,depth=2000);&lt;br /&gt;
spectrum.add_object(new, 0, 0, 0,0.25;depth=100);&lt;br /&gt;
spectrum.render(&amp;quot;spectrum_hess.pdf&amp;quot;);&lt;br /&gt;
#endiffalse&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%&lt;br /&gt;
%NEW! ADD GOOD RANGES!&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%%%%%%%%%&lt;br /&gt;
% ADD RANGES TANAMI&lt;br /&gt;
%%&lt;br /&gt;
variable new = xfig_plot_new(plotwidth,6.5);&lt;br /&gt;
new.world(wavelength2frequency(wavelength_range[0]),wavelength2frequency(wavelength_range[1]),0,4; color=freqcol);&lt;br /&gt;
new.x1axis(;log, color=freqcol, ticlabel_color=freqcol,off); new.y1axis(;off); new.y2axis(;off);new.x2axis(;off);&lt;br /&gt;
&lt;br /&gt;
variable tan_lo=8.4e9;&lt;br /&gt;
variable tan_hi = 22.3e9;&lt;br /&gt;
new.shade_region((tan_lo), (tan_hi),0,0.8;world10, color=&amp;quot;black&amp;quot;, fill=4,width=0,depth=2000);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%%%%%%%%%&lt;br /&gt;
% ADD RANGES OPTICAL&lt;br /&gt;
%%&lt;br /&gt;
variable ou_lo = 5468e-10;&lt;br /&gt;
variable ou_hi=1928e-10;&lt;br /&gt;
new.shade_region(wavelength2frequency(ou_lo), wavelength2frequency(ou_hi),0,0.8;world10, width=0,fillcolor=&amp;quot;black&amp;quot;, fill=4,depth=2000);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%%%%%%%%%&lt;br /&gt;
% ADD RANGES XRT&lt;br /&gt;
%%&lt;br /&gt;
variable x_lo = 0.5e3;&lt;br /&gt;
variable x_hi=10e3;&lt;br /&gt;
&lt;br /&gt;
new.shade_region(energy2frequency_eV(x_lo),energy2frequency_eV(x_hi),0,0.8;world10, width=0,fillcolor=&amp;quot;black&amp;quot;, fill=4,depth=2000);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%%%%%%%%%&lt;br /&gt;
% ADD RANGES BAT&lt;br /&gt;
%%&lt;br /&gt;
variable x_lob = 15e3;&lt;br /&gt;
variable x_hib=150e3;&lt;br /&gt;
&lt;br /&gt;
new.shade_region(energy2frequency_eV(x_lob),energy2frequency_eV(x_hib),0,0.8;world10, fillcolor=&amp;quot;dodgerblue&amp;quot;, fill=30,width=0,depth=2000);&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
%%%%%%%%%%%%%%%%%%&lt;br /&gt;
% ADD RANGES FERMI&lt;br /&gt;
%%&lt;br /&gt;
&lt;br /&gt;
variable f_lo = 20e6;&lt;br /&gt;
variable f_hi=300e9;&lt;br /&gt;
&lt;br /&gt;
new.shade_region(energy2frequency_eV(f_lo),energy2frequency_eV(f_hi),0,0.8;world10, width=0,fill=4,fillcolor=&amp;quot;black&amp;quot;,depth=2000);&lt;br /&gt;
&lt;br /&gt;
spectrum.add_object(new, 0, 0, 0,0.25;depth=100);&lt;br /&gt;
spectrum.render(&amp;quot;spectrum2.pdf&amp;quot;);&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Category:SLxfig]]&lt;/div&gt;</summary>
		<author><name>Niu</name></author>
	</entry>
</feed>