Difference between revisions of "Team:NEFU China/Background"

 
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<link href="https://2018.igem.org/wiki/index.php?title=Template:NEFU_China/CSS-background-layer-bottom&action=raw&ctype=text/css" rel="stylesheet" type="text/css">
 
<link href="https://2018.igem.org/wiki/index.php?title=Template:NEFU_China/CSS-background-layer-bottom&action=raw&ctype=text/css" rel="stylesheet" type="text/css">
 
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<link href="https://2018.igem.org/wiki/index.php?title=Template:NEFU_China/CSS-background-banner&action=raw&ctype=text/css" rel="stylesheet" type="text/css">
−
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−
 
+
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#top_title, #sideMenu{
 
     display: none;
 
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−
}
+
}            
  
 
div #content {
 
div #content {
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}
 
}
  
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 +
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 +
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 +
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 +
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 +
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 +
    line-height:32px;
 +
    display:block;
 +
    padding:0 5px;
 +
    font-size: 25px!important;
 +
font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji' !important;
 +
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 +
.layer-bottom {
 +
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 +
position: absolute;
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</style>
  
 
</head>
 
</head>
 
<body>
 
<body>
−
<div id="menu" style="background-color:white!important">
+
<!--menu-->
−
<li id="nav">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
+
 
−
<!--<a class="menu1" href="#" style="text-align: right;">☰</a>-->
+
<div id="menu" style="background-color:rgba(0,0,0,0.6)!important">
 +
<li id="nav" style="left: 8%!important; width: 100%!important;">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;
 +
 
<ul class="firstmenu" style="float: left">
 
<ul class="firstmenu" style="float: left">
 
 
Line 41: Line 170:
 
<ul id="sub_02">
 
<ul id="sub_02">
 
<li><a href="https://2018.igem.org/Team:NEFU_China/Background" target="_self">BACKGROUND</a></li>
 
<li><a href="https://2018.igem.org/Team:NEFU_China/Background" target="_self">BACKGROUND</a></li>
−
<li><a href="https://2018.igem.org/Team:NEFU_China/Description" target="_self">DESCRIPTION</a></li>
+
<li><a href="https://2018.igem.org/Team:NEFU_China/Description" target="_self">DESCRIPTION &amp; DESIGN</a></li>
−
<li><a href="https://2018.igem.org/Team:NEFU_China/Design" target="_self">DESIGN</a></li>
+
<li><a href="https://2018.igem.org/Team:NEFU_China/Coding book" target="_self">CODE BOOK</a></li>
−
<li><a href="https://2018.igem.org/Team:NEFU_China/Coding book" target="_self">CODING BOOK</a></li>
+
 
  </ul>
 
  </ul>
 
  </li>
 
  </li>
−
 
−
 
 
<li class="mainlevel" id="mainlevel_03">
 
<li class="mainlevel" id="mainlevel_03">
−
  <a href="https://2018.igem.org/Team:NEFU_China/Experiment"><img id="parts" src="https://static.igem.org/mediawiki/2018/6/62/T--NEFU_China--_RESULTS.png">EXPERIMENT</a>
+
  <a href="https://2018.igem.org/Team:NEFU_China/Demonstrate"><img id="parts" src="https://static.igem.org/mediawiki/2018/6/62/T--NEFU_China--_RESULTS.png">EXPERIMENTS</a>
 
  <ul id="sub_03">
 
  <ul id="sub_03">
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Basic parts" target="_self">BASIC PARTS</a></li>
 
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Composite parts" target="_self">COMPOSITE PARTS</a></li>
 
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Improve" target="_self">IMPROVEMENT PARTS</a></li>
 
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Parts collection" target="_self">PARTS COLLECTION</a></li>
 
−
  <hr>
 
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Lock_Key" target="_self">LOCK &amp; KEY</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Lock_Key" target="_self">LOCK &amp; KEY</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Suicide" target="_self">SUICIDE</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Suicide" target="_self">INFORMATION DESTRUCTION</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Splicing" target="_self">SPLICING</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Splicing" target="_self">Pre-RNA SPLICING</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Demonstrate" target="_self">DEMONSTRATE</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Demonstrate" target="_self">DEMONSTRATE</a></li>
 
  <hr>
 
  <hr>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Notebook" target="_self">OVERVIRW</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Basic_Part" target="_self">BASIC PARTS</a></li>
 +
  <li><a href="https://2018.igem.org/Team:NEFU_China/Composite_Part" target="_self">COMPOSITE PARTS</a></li>
 +
  <li><a href="https://2018.igem.org/Team:NEFU_China/Improve" target="_self">IMPROVEMENT PARTS</a></li>
 +
  <li><a href="https://2018.igem.org/Team:NEFU_China/Part_Collection" target="_self">PARTS COLLECTION</a></li>
 +
  <hr>
 +
  <li><a href="https://2018.igem.org/Team:NEFU_China/Notebook" target="_self">NOTEBOOK</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Protocol" target="_self">PROTOCOL</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Protocol" target="_self">PROTOCOL</a></li>
 
  </ul>
 
  </ul>
 
  </li>
 
  </li>
−
  <!--
+
   
−
  <li class="mainlevel" id="mainlevel_03">
+
−
  <a href="https://2018.igem.org/Team:NEFU_China/Basic parts"><img id="parts" src="https://static.igem.org/mediawiki/2018/5/58/T--NEFU_China--_PARTS.png">PARTS</a>
+
−
  <ul id="sub_03">
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Basic parts" target="_self">BASIC PARTS</a></li>
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Composite parts" target="_self">COMPOSITE PARTS</a></li>
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Improve" target="_self">IMPROVEMENT PARTS</a></li>
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Parts collection" target="_self">PARTS COLLECTION</a></li>
+
−
  </ul>
+
−
  </li>
+
−
      <li class="mainlevel" id="mainlevel_04">
+
−
  <a href="https://2018.igem.org/Team:NEFU_China/Lock_Key"><img id="results" src="https://static.igem.org/mediawiki/2018/6/62/T--NEFU_China--_RESULTS.png">RESULTS</a>
+
−
  <ul id="sub_04">
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Lock_Key" target="_self">LOCK &amp; KEY</a></li>
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Suicide" target="_self">SUICIDE</a></li>
+
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Splicing" target="_self">SPLICING</a></li>
+
−
  </ul>
+
−
  </li>
+
−
            -->
+
 
  <li class="mainlevel" id="mainlevel_05">
 
  <li class="mainlevel" id="mainlevel_05">
 
  <a href="https://2018.igem.org/Team:NEFU_China/Model"><img id="model" src="https://static.igem.org/mediawiki/2018/0/0c/T--NEFU_China--_MODEL.png">MODEL</a>
 
  <a href="https://2018.igem.org/Team:NEFU_China/Model"><img id="model" src="https://static.igem.org/mediawiki/2018/0/0c/T--NEFU_China--_MODEL.png">MODEL</a>
 
  <ul id="sub_05">
 
  <ul id="sub_05">
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Model" target="_self">OVERVIEW</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Model" target="_self">OVERVIEW</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Model1" target="_self">MODEL1</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Model1" target="_self">CORRESPONDING COEFFICIENT</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Model2" target="_self">MODEL2</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Model2" target="_self">KILLING MODEL</a></li>
 
  </ul>
 
  </ul>
 
  </li>
 
  </li>
Line 96: Line 204:
 
  <ul id="sub_06">
 
  <ul id="sub_06">
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software" target="_self">OVERVIEW</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software" target="_self">OVERVIEW</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software1" target="_self">SOFTWARE1</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software1" target="_self">CODING</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software2" target="_self">SOFTWARE2</a></li>
+
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software2" target="_self">MISLEADING</a></li>
 +
  <li><a href="https://2018.igem.org/Team:NEFU_China/Software3" target="_self">WORDSEGMENT</a></li>
 
  </ul>
 
  </ul>
 
  </li>
 
  </li>
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  <li><a href="https://2018.igem.org/Team:NEFU_China/Attributions" target="_self">ATTRIBUTIONS</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Attributions" target="_self">ATTRIBUTIONS</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Members" target="_self">MEMBERS</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Members" target="_self">MEMBERS</a></li>
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Sponsoring" target="_self">SPONSORING</a></li>
 
 
  </ul>
 
  </ul>
 
  </li>
 
  </li>
Line 111: Line 219:
 
  <a href="https://2018.igem.org/Team:NEFU_China/Human_Practices"><img id="humanpractice" src="https://static.igem.org/mediawiki/2018/9/91/T--NEFU_China--_HUMANPRACTICE.png">HUMAN PRACTICE</a>
 
  <a href="https://2018.igem.org/Team:NEFU_China/Human_Practices"><img id="humanpractice" src="https://static.igem.org/mediawiki/2018/9/91/T--NEFU_China--_HUMANPRACTICE.png">HUMAN PRACTICE</a>
 
  <ul id="sub_08">
 
  <ul id="sub_08">
 +
  <li><a href="https://2018.igem.org/Team:NEFU_China/Human_Practices" target="_self">OVERVIEW</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Gold_integrated" target="_self">GOLD INTEGRATED</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Gold_integrated" target="_self">GOLD INTEGRATED</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Silver" target="_self">SILVER</a></li>
 
  <li><a href="https://2018.igem.org/Team:NEFU_China/Silver" target="_self">SILVER</a></li>
Line 117: Line 226:
 
  </ul>
 
  </ul>
 
  </li>
 
  </li>
−
<!--
 
−
  <li class="mainlevel" id="mainlevel_09">
 
−
  <a href="https://2018.igem.org/Team:NEFU_China/Notebook"><img id="notebook" src="https://static.igem.org/mediawiki/2018/c/cb/T--NEFU_China--_NOTEBOOK.png">NOTEBOOK</a>
 
−
  <ul id="sub_09">
 
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Notebook" target="_self">OVERVIRW</a></li>
 
−
  <li><a href="https://2018.igem.org/Team:NEFU_China/Protocol" target="_self">PROTOCOL</a></li>
 
−
  </ul>
 
−
  </li>
 
−
-          -->
 
 
 
 
</ul>
 
</ul>
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</div>
 
</div>
 
<div id="banner">  
 
<div id="banner">  
−
<img src="https://static.igem.org/mediawiki/2018/0/05/T--NEFU_China--DNA.png" alt="banner" id="banner-img">
+
<img src="https://static.igem.org/mediawiki/2018/0/06/T--NEFU_China--background-title01.png" alt="banner" id="banner-img">
 
</div>
 
</div>
 +
 +
 +
<div class="layer-bottom">
 +
 +
<canvas id="canvas" style="background:#000000"></canvas>
 +
 +
<script type="text/javascript">
 +
 +
window.onload = function(){
 +
var canvas = document.getElementById("canvas");
 +
var context =canvas.getContext("2d");
 +
var W = window.innerWidth;
 +
                        var H = 2600;
 +
//var H = window.innerHeight*1.5;
 +
canvas.width = W;
 +
canvas.height = H;
 +
var fontSize = 20;
 +
var colunms = Math.floor(W /fontSize);
 +
var drops = [];
 +
for(var i=0;i<colunms;i++){
 +
drops.push(0);
 +
}
 +
 +
 +
var str1 = "ATCG";
 +
                        var str2 = "01";
 +
function draw(){
 +
context.fillStyle = "rgba(0,0,0,0.2)";
 +
context.fillRect(0,0,W,H);
 +
context.font = "700 "+fontSize+"px  微软雅黑";
 +
context.fillStyle = "#003544";
 +
for(var i=0;i<colunms/2;i++){
 +
var index = Math.floor(Math.random() * str1.length);
 +
var x = i*fontSize;
 +
var y = drops[i] *fontSize;
 +
context.fillText(str1[index],x,y);
 +
if(y >= canvas.height){
 +
drops[i] = 0;
 +
}
 +
                                        if(Math.random() > 0.99){
 +
                                                drops[i] = 0;
 +
}
 +
drops[i]++;
 +
}
 +
                                for(var i=colunms/2;i<colunms;i++){
 +
var index = Math.floor(Math.random() * str2.length);
 +
var x = i*fontSize;
 +
var y = drops[i] *fontSize;
 +
context.fillText(str2[index],x,y);
 +
if(y >= canvas.height){
 +
drops[i] = 0;
 +
}
 +
                                        if(Math.random() > 0.99){
 +
                                                drops[i] = 0;
 +
}
 +
drops[i]++;
 +
}
 +
};
 +
 +
function randColor(){
 +
var r = Math.floor(Math.random() * 256);
 +
var g = Math.floor(Math.random() * 256);
 +
var b = Math.floor(Math.random() * 256);
 +
return "rgb("+r+","+g+","+b+")";
 +
}
 +
 +
draw();
 +
setInterval(draw,60);
 +
};
 +
 +
</script>
 +
 +
           
 +
 +
</div>
 +
 
<div id="background-content">
 
<div id="background-content">
−
<h1>Background</h1>
+
<h1 style="font-size: 65px;color: orange!important;height: 84px;">Background</h1>
−
    <p>
+
 
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.<br>
+
−
        But since few have marked down their own prices in line with the metal's fall, they will be able to recoup much of the difference. Not so the producers, whose income is directly related to the fluctuating daily price on the London Metal Exchange.<br>
+
−
        The Japanese have their electronics, the Germans their engineering. But when it comes to command of global markets, the U.S. owns the service sector.<br>
+
−
        Meanwhile, pressure has been growing from the car companies. GM ships about 60% of its cars and trucks with Ryder, while Chrysler ships some 40%.<br>
+
−
        First of all, current modest demand growth will not support any more increases that large. Second, now that manufacturers have worked to get their inventories lower, they will be cautious about adding goods in coming months.<br>
+
−
These are two steps:
+
−
</p>
+
−
<ol>
+
−
<li>
+
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.
+
−
</li>
+
−
<li>
+
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.
+
−
</li>
+
−
</ol>
+
 
<p>
 
<p>
−
The Japanese have their electronics, the Germans their engineering. But when it comes to command of global markets, the U.S. owns the service sector.<br>
+
Since ancient time, people have been seeking for safe ways of information storage and transfer to combat message leaks that have recently become a public security problem and greatly concerns all over the world. To overcome this, encryption technologies have been developed and widely used to ensure the safety of important information.
−
</p>
+
−
<img src="https://static.igem.org/mediawiki/2018/5/58/T--NEFU_China--Figure_1.png" alt="Figure1" id="Figure1-img">
+
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<h2 id="Figure1-title">Figure 1: This is Figure 1.</h2>
+
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<p>
+
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.<br>
+
 
</p>
 
</p>
 
<br>
 
<br>
 
<hr>
 
<hr>
−
 
 
<br>
 
<br>
−
<h1>Background first title</h1>
 
−
<p>
 
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.<br>
 
−
<br>
 
−
</p>
 
 
<table id="table1">
 
<table id="table1">
−
<td valign="top">
+
<td valign="top" width="60%">
 +
 +
<p>
 +
    For example, the <i>Da Vinci code cylinder</i> was recorded in the <i>Da Vinci </i>manuscript. If the messages were retrieved in a wrong way, the letter with the white phosphorus would be self-destroyed.
 +
        </p>
 +
 +
</td>
 +
<td valign="top" width="40%">
 +
<img style="width: 330px;" src="https://static.igem.org/mediawiki/2018/4/47/T--NEFU_China--Introduction01.png" alt="Figure1" id="Figure1-img">
 +
 
 +
 +
</td>
 +
</table>
 +
    <br>
 +
<table id="table2" >
 +
<td valign="top" width="35%">
 +
<img style="width:330px;" src="https://static.igem.org/mediawiki/2018/b/bc/T--NEFU_China--Introduction04.png" alt="Figure2" id="Figure2-img">
 +
 +
</td>
 +
<td valign="top" width="65%">
 +
 
 +
 +
<p>
 +
    However, these self-destruction approaches could not provide sufficient confidentiality. Then the steganography technique was developed, by which the information could only be present after special treatments, like dipped in alum water, instead of being read directly with naked eyes.
 +
        </p>
 +
</td>
 +
</table>
 +
<br>
 +
<table id="table3">
 +
<td valign="top" width="65%">
 +
 
<p>
 
<p>
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.<br>
+
In 1854, the Playfair cipher invented by Charles Wheatstone made the English alphabet frequency statistical analysis useless. This method is convenient and safe to be used, which also provides a great reference to our password books.
−
So far, the national trends in costs for wages, salaries, and benefits have glossed over these concerns. The growth in labor costs continued to slow in the second quarter - a pattern that held true in all major regions. However, the slowdown in labor costs is due solely to sharp cutbacks in what companies, mainly large corporations, are paying for benefits, which make up about a fourth of total compensation costs nationally. Because of slower growth in health care costs, workers' compensation, and state unemployment insurance, benefits grew only 2.6% during the past year, the lowest pace on record.<br>
+
 
</p>
 
</p>
 
</td>
 
</td>
−
<td valign="top">
+
<td valign="top" width="35%" style="text-align: center;
−
<img src="https://static.igem.org/mediawiki/2018/2/2f/T--NEFU_China--Figure_2.png" alt="Figure2" id="Figure2-img">
+
">
−
<h2 id="Figure2-title">Figure 2: This is Figure 2.</h2>
+
<img style="width:300px;" src="https://static.igem.org/mediawiki/2018/b/b1/T--NEFU_China--Introduction03.png" alt="Figure3" id="Figure3-img">
 +
 
</td>
 
</td>
 
</table>
 
</table>
−
<p>
+
<br>
−
The Japanese have their electronics, the Germans their engineering. But when it comes to command of global markets, the U.S. owns the service sector.<br>
+
<table id="table4">
 +
<td valign="top" width="65%">
 +
 +
<p>
 +
    Recently, two biological encryption systems built on the spores of <i>Bacillus subtilis</i> have been used to safely send a key and an encrypted message, respectively. Based on the previous work, we planned to establish a DNA-based information storage and transmission system of high safety using the knowledge and techniques of synthetic biology and computer science, and this time, we used yeast to achieve our goal.
 +
        </p>
 +
</td>
 +
<td valign="top" width="35%" style="text-align: center;
 +
">
 +
<img style="width:300px;text-align: center;" src="https://static.igem.org/mediawiki/2018/1/10/T--NEFU_China--Introduction02.png" alt="Figure4" id="Figure4-img">
 +
 +
</td>
 +
</table>
 +
<p style="color: white">
 +
In this project, we built an information storage and transfer system with high security on using yeast spores, which consists of six modules, including<span style="color:orange"> “CODING”, “WRITE IN”, “LOCKING”, “MISLEADING”, “TIME DELAY SUICIDE” and “READ OUT”</span>. Together with the computation methods developed in this project, we designed and incorporated a considerable number of genetic parts into the six modules above to ensure the safety of information stored in and transferred using our system. <br>
 
</p>
 
</p>
−
<br><br><br>
+
<table id="table5">
−
</div>
+
<td valign="top" width="100%" style="text-align: center;
−
<div id="background-reference">
+
">
−
<h1>Reference</h1>
+
<img style="width:100%;text-align: center;" src="https://static.igem.org/mediawiki/2018/5/5b/T--NEFU_China--background-bottom.png" alt="Figure4" >
−
<p> <a href="#"> [1] Pu, Jinyue and Zinkus-Boltz, Julia and Dickinson, Bryan C. (2017) Evolution of a split RNA polymerase as a versatile biosensor platform. <em><em>Nat Chem Biol 13</em></em> , 432-438 </a>
+
−
<br>
+
−
<a href="#"> [2] Pu, Jinyue and Zinkus-Boltz, Julia and Dickinson, Bryan C. (2017) Evolution of a split RNA polymerase as a versatile biosensor platform. <em><em>Nat Chem Biol 13</em></em> , 432-438 </a>
+
−
<br>
+
−
<a href="#"> [3] Pu, Jinyue and Zinkus-Boltz, Julia and Dickinson, Bryan C. (2017) Evolution of a split RNA polymerase as a versatile biosensor platform. <em><em>Nat Chem Biol 13</em></em> , 432-438 </a>
+
−
<br>
+
−
<a href="#"> [4] Pu, Jinyue and Zinkus-Boltz, Julia and Dickinson, Bryan C. (2017) Evolution of a split RNA polymerase as a versatile biosensor platform. <em><em>Nat Chem Biol 13</em></em> , 432-438 </a>
+
−
<br>
+
−
<a href="#"> [5] Pu, Jinyue and Zinkus-Boltz, Julia and Dickinson, Bryan C. (2017) Evolution of a split RNA polymerase as a versatile biosensor platform. <em><em>Nat Chem Biol 13</em></em> , 432-438 </a>
+
−
<br>
+
−
<a href="#"> [6] Pu, Jinyue and Zinkus-Boltz, Julia and Dickinson, Bryan C. (2017) Evolution of a split RNA polymerase as a versatile biosensor platform. <em><em>Nat Chem Biol 13</em></em> , 432-438 </a>s
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</p>
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<div class="background-foot">
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<div id="foot-title">
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<table frame="void">
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<td>
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<h1>Userfull links</h1>
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<h2>
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<a href="https://2018.igem.org/Team:NEFU_China/NEFU_China">Home</a>
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&nbsp;&nbsp;&nbsp;&nbsp;
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<a href="https://2018.igem.org/Team:NEFU_China/MODEL/Overview">Model</a>
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&nbsp;&nbsp;&nbsp;
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<a href="https://2018.igem.org/Team:NEFU_China/PROJECT/Description">Project</a>
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    <a href="https://2018.igem.org/Team:NEFU_China/SOFTWARE/Overview">Software</a>
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</h2>
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<h2>
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<a href="https://2018.igem.org/Team:NEFU_China/PARTS/Basic parts">Parts</a>
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&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
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<a href="https://2018.igem.org/Team:NEFU_China/TEAM/Members">Teams</a>
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&nbsp;&nbsp;
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<a href="https://2018.igem.org/Team:NEFU_China/RESULTS/Leaders">Results</a>
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&nbsp;
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<a href="https://2018.igem.org/Team:NEFU_China/NOTEBOOK/Overview">Notebook</a>
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</h2>
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<h2>
+
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<a href="https://2018.igem.org/Team:NEFU_China/HUMAN PRACTICE/Gold_integrated">Human &nbsp;Practice</a>
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</h2>
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</td>
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<td style="padding-left: 70px!important;">
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<h1>Follow us</h1>
+
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<img alt="facebook" src="https://static.igem.org/mediawiki/2018/b/b5/T--NEFU_China--facebook.png">
+
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&nbsp;&nbsp;&nbsp;
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        <img alt="twitter" src="https://static.igem.org/mediawiki/2018/3/36/T--NEFU_China--twitter.png">
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&nbsp;&nbsp;&nbsp;
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<img alt="wehchat" src="https://static.igem.org/mediawiki/2018/c/ca/T--NEFU_China--wechat.png">
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        <br>
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        <img alt="facebook" src="https://static.igem.org/mediawiki/2018/b/b5/T--NEFU_China--facebook.png">
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&nbsp;&nbsp;&nbsp;
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        <img alt="twitter" src="https://static.igem.org/mediawiki/2018/3/36/T--NEFU_China--twitter.png">
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&nbsp;&nbsp;&nbsp;
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<img alt="wehchat" src="https://static.igem.org/mediawiki/2018/c/ca/T--NEFU_China--wechat.png">
+
 
 
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</td>
+
</td>
−
<td style="padding-left: 70px!important;">
+
</table>
−
<h1>Contact us</h1>
+
−
<h2>iGEM-NEFU_China2018</h2>
+
−
<h2>Email: hexinglu@nefu.edu.cn</h2>
+
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<h3>No.26 Hexing Road, Xiangfang <br>District, Harbin, Heilongjiang <br>Province 150000</h3>
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Latest revision as of 21:34, 17 October 2018

Background

Background

Since ancient time, people have been seeking for safe ways of information storage and transfer to combat message leaks that have recently become a public security problem and greatly concerns all over the world. To overcome this, encryption technologies have been developed and widely used to ensure the safety of important information.



For example, the Da Vinci code cylinder was recorded in the Da Vinci manuscript. If the messages were retrieved in a wrong way, the letter with the white phosphorus would be self-destroyed.

Figure1

Figure2

However, these self-destruction approaches could not provide sufficient confidentiality. Then the steganography technique was developed, by which the information could only be present after special treatments, like dipped in alum water, instead of being read directly with naked eyes.


In 1854, the Playfair cipher invented by Charles Wheatstone made the English alphabet frequency statistical analysis useless. This method is convenient and safe to be used, which also provides a great reference to our password books.

Figure3

Recently, two biological encryption systems built on the spores of Bacillus subtilis have been used to safely send a key and an encrypted message, respectively. Based on the previous work, we planned to establish a DNA-based information storage and transmission system of high safety using the knowledge and techniques of synthetic biology and computer science, and this time, we used yeast to achieve our goal.

Figure4

In this project, we built an information storage and transfer system with high security on using yeast spores, which consists of six modules, including “CODING”, “WRITE IN”, “LOCKING”, “MISLEADING”, “TIME DELAY SUICIDE” and “READ OUT”. Together with the computation methods developed in this project, we designed and incorporated a considerable number of genetic parts into the six modules above to ensure the safety of information stored in and transferred using our system.

Figure4