C. K. Liaskos - 's personal web site @ Aristotle University of Thessaloniki.

!Virtual lab on antenna positioning and coverage completed!

The first of the five virtual labs on WCM and WSN has been completed today! 
Topics covered are power patterns of several antenna types, radio coverage, antenna positioning and field measurements.
Visit [[this page|http://www.tech.ihu.edu.gr/index.php/projects/virtual-labs/156-wireless-telecommunication-and-sensor-networks.html]] for more.

[[Progress Report #1|http://users.auth.gr/~cliaskos/files/apps/p_report1.zip]]

//Screenshots://

[img(400+,400+)[http://users.auth.gr/~cliaskos/images/vlabs1.jpg]]

#<<tiddler confERA-EDTA11>>
#<<tiddler confISCC11>>
#<<tiddler confBMSB11>>
#<<tiddler confSCVT2010>>
#<<tiddler confMELECON10>>
#<<tiddler confICUMT09>>
#<<tiddler confISADS09>>
#<<tiddler confSCVT08>>

>Liaskos Christos
>[[Computer Architecture and Communications Lab|http://caclab.csd.auth.gr]]
>[[Dept. of Informatics|http://www.csd.auth.gr]]
>[[Aristotle University of Thessaloniki|http://www.auth.gr]]
>''ZIP Code'':54124
>''P.O.Box'': 888
>Thessaloniki, Macedonia, GREECE
>''Tel.:''+30-2310-998705
>''Fax:''+30-2310-998221
>
>''E-mail:'' [[cliaskos@csd.auth.gr|mailto:cliaskos@csd.auth.gr]]
>''Map:'' [[Directions to visit the lab|DirectionsToTheLab]]

!Links
[[go|http://www.auth.gr/home/index_en.html]]2[img(100+,100+)[http://users.auth.gr/~cliaskos/images/auth_logo.jpg]], [[go|http://www.csd.auth.gr/index.en.php]]2[img(200+,100+)[http://users.auth.gr/~cliaskos/images/csd_logo.jpg]], [[go|http://caclab.csd.auth.gr/English_Version.html]]2 [img(265+,100+)[http://users.auth.gr/~cliaskos/images/caclab_logo.jpg]], [[go|http://lomiweb.med.auth.gr/index.php?q=en]]2[img(144+,100+)[http://users.auth.gr/~cliaskos/images/promesip_logo.gif]], [[go|http://www.ihu.edu.gr]]2[img[http://www.ihu.edu.gr/templates/jsn_epic_pro/images/logo.png]], [[go|http://www.ee.auth.gr/]]2[img[http://users.auth.gr/~cliaskos/images/logoEeAuth.png]]

|![img[http://users.auth.gr/~cliaskos/images/mugshot.jpg]] |! I was born in 1982, in Thessaloniki, Macedonia. I am Greek and Christian Orthodox. I currently reside in Polihni, Thessaloniki, Greece. I believe that all people should be able to freely express themselves openly, peacefully, democratically, without prejudice or stereotypes.|

Computer technology in almost every form has been a major interest since childhood. I have worked successively as a computer technician, 
web designer and desktop applications programmer. A favor the Windows^^TM^^ OS family over the alternatives. C++ and [[Ruby|href="http://www.ruby-lang.org/en/]] are my programming languages of choice, and Microsoft Visual Studio^^TM^^ the IDE that I find most user friendly.

I received the Diploma degree in electrical and computer engineering in 2004 and the M.S. degree in medical informatics in 2008 from the Aristotle University of Thessaloniki, Macedonia, Greece. From September 2008 till today I am working towards my Ph.D. degree in communication networks under the advisory of prof. Papadimitriou Georgios, at the Department of Informatics of the Aristotle University of Thessaloniki.

I am a member of the [[IEEE|http://www.ieee.org]] and the [[Technical Chamber of Greece|http://www.tee.gr]]

I am very interest in:
*wireless networks and broadcast-based applications,
*compressive sensing and its applcations in communications
*fractal compression algorithms.
[[More..|CV Details]]

!Studies
*@@Graduate studies:@@ Electrical & Computers’ Engineer, Faculty of Engineering,Aristotle University of Thessaloniki (2004)
*@@Postgraduate studies:@@  ''~MSc'' in Medical Informatics, School of Medicine, Aristotle University of Thessaloniki (2008), ''~PhD candidate'', Department of Informatics, Aristotle University of Thessaloniki (2008-today)
!Research
See [[Publications|PUBLICATIONS]]
!Professional Experience
*Computers’ Engineer (1/5/2003 - 30/5/2004)
*Programmer (7/2004 - 11/2004)
*Military Service (11/2005 - 11/2006)
*Programmer (2/2007 - 6/2009)
*Programming Instructor (11/2008-6/2009)
*Programmer by contract for the International Hellenic University (2/2010-11/2010)
!Teaching Experience 
*"Medical Informatics", 1st semester, School of Medicine, Aristotle University of Thessaloniki (2006-2007)
*"Dental Informatics", 1st semester, Dental School, Aristotle University of Thessaloniki (2006-2007)
*"Communication Networks" 5th semester, Dept. of Informatics, Aristotle University of Thessaloniki (2008- 2009, 2009-2010, 2010-2011,2011-2012)
*"Digital Communications" 4th semester, Dept. of Informatics, Aristotle University of Thessaloniki (2008- 2009, 2009-2010)
!Honors
*Aristotle University ~PhD scholarship 2010
*"Heracletus II" National/EU ~PhD scholarship 2010-2013
*Praise for exceptional research activity, 5^^th^^ scientific conference, School of Medicine, Aristotle University of Thessaloniki, 2009
*TPC member, CITS 2012
!Reviewing Activities
*IEEE Transactions on Wireless Communications
*IEEE Transactions on Systems, Man, and Cybernetics
*IEEE Transactions on Computers
*IEEE Transactions on Vehicular Technology
*IEEE Sensors Journal
*International Journal of Digital Multimedia Broadcasting
*International Journal of Computer Science
*IEEE GLOBECOM 2011
*IEEE ICT 2011
*IEEE ISCC 2011
*IEEE BFIC 2011
*WWIC 2012

Background: #fff
Foreground: #000
PrimaryPale: #8cf
PrimaryLight: #18f
PrimaryMid: #04b
PrimaryDark: #014
SecondaryPale: #ffc
SecondaryLight: #fe8
SecondaryMid: #db4
SecondaryDark: #841
TertiaryPale: #eee
TertiaryLight: #ccc
TertiaryMid: #999
TertiaryDark: #666
Error: #f88

*[[Wake up Saru|http://users.auth.gr/~cliaskos/WAKESARU.EXE]] [img[offline|http://sophia.csd.auth.gr:13131/online.gif]]
*[[check map|http://users.auth.gr/~cliaskos/eye.rb]]
*[[update|http://users.auth.gr/~cliaskos/update.exe]]
*Enable RW: <<tiddler ToggleReadOnly>>

!VLABS officially hosted at the International Hellenic University site.

Check out the official web page of "Virtual Laboratories on Wireless Communications and Sensor Networks" project [[here|http://rad.ihu.edu.gr/index.php?id=28]].

Lots of VLABS on other research fields are also available [[here|http://rad.ihu.edu.gr]].

!Medical Application: Differential diagnosis of functioning from non-functioning arteriovenous fistula in hemodialysis patients with the help of sound assessment.

The medical research of Dr. Malindretos Pavlos (MD) is implemented. The application can be used for automatic detection of malfunctioning fistulas in hemodialysis patients in real time. See the medical research (MSc Thesis) of Dr. Malindretos [[here|http://invenio.lib.auth.gr/record/110401]].

Contact: [[pavlosmm@hotmail.com|mailto:pavlosmm@hotmail.com]].
Information on any other software specific, //technical// aspect can be supplied by yours truly.. 

//Screenshots://
[img(400+,350+)[http://users.auth.gr/~cliaskos/images/fistoula.png]]

!Computer Networks - Cisco equipment Lab

Added the following material at the [[lab's webpage:|http://caclab.csd.auth.gr/lesson6.html]]
 
*[[Static routing example|http://caclab.csd.auth.gr/ip_route_ex.pdf]]
*[[Description and workaround for the "cannot assign IP address to L2 links" error.|http://caclab.csd.auth.gr/solution1.pdf]]	  
*[[Cisco 871W architecture|http://caclab.csd.auth.gr/layout.pdf]]
*[[Updated version of the "Getting started" material.|http://caclab.csd.auth.gr/yliko_eksoikeiwshs.pdf]]

!Computer Networks - Additional material offline

The links to the additinal material for the Computer Networks course have been removed permanently.
Additionally, some more exercises will be solved in THEORY class.

As a temporary workaround for the inconvenient (for us too!) delay in the coursebook's distribution,
I ADVISE you yet again to download the book via a ~P2P program such as emule.
The book title is "Computer Networks", 4th Edition by Tanenbaum.
   
//(I remind that you can find the solutions to all book exercises along with it).//

!Applications - ~Volte-Tel & Quest site ripper

While designing an e-shop, a need to automatically grab products from other sites
and auto-update ours came up. This program scans the Volte-tel and Quest supplier sites
(main suppliers of technology products to Greek market) for products (full descriptions,
images, prices, everything!) and stores them to simple .csv files ready to be installed
to your e-shop automatically! Specially designed for the popular ~CS-Cart system.
Freely available for download below.
Package contains installer, manual, instructions and prerequisites.

 //(Programmed in Codegear RAD studio 2010 and Ruby.
If you are interested in the source code mail me).//
  
[[VolteTel - Quest site ripper 2009|http://users.auth.gr/~cliaskos/files/apps/VolteTel-QuestRipper.zip]][img[http://users.auth.gr/~cliaskos/images/package.gif]]

!Computer Networks - Cisco Lab

Two of the ~ADVANCED-SECURITY-IOS machines were upgraded to ~ADVANCED-API-IOS.
The former had a maximum of 2 VLANS limitation, while the latter can have up to 4.
The total number of machines having the ~ADVANCED-API-IOS is now 5, thus covering
the requirements of exercise 4.
    
Check the [[course webpage|http://caclab.csd.auth.gr/lesson6.html]] for more.

!Application - HTTP Automation

An application for web automation. Posts queries to pages with data retrieved
from a database, and scans the returned HTTP pages for useful data through custom ~RegExps.
The data are saved to a user-defined file.

//(Programmed in Codegear RAD studio 2010. ~IndySockets ~TidHTTP and ~BOOST ~RegExp
usage example. If you are interested in the source code mail me).//

[[Application - HTTP Automation|http://users.auth.gr/~cliaskos/files/apps/HTTPautoSetup.zip]][img[http://users.auth.gr/~cliaskos/images/package.gif]]

[[WELCOME]]

Enter the ''Aristotle University Campus'' either from ''Egnatia'' or ''Ag. Dimitriou'' street. Follow the signs to the School of Sciences (''Sholi Thetikon Epistimon''). The ''Computer Architecture and Communications Lab'' is located on the H-floor of the ''department of Informatics'', which is shown on the map below:

<html><div id="map" style="width: 600px; height: 420px"></div></html>
<script>
var map = new GMap(document.getElementById("map"));
map.addControl(new GSmallMapControl());
map.addControl(new GMapTypeControl());  
var point = new GLatLng(40.6332, 22.9573);
map.setCenter(point, 10);
var marker = new GMarker(point);
map.addOverlay(marker);
map.centerAndZoom(new GPoint(22.9573, 40.6332), 1);    
</script>

!Sign your PDF documents! It's easy.

Authoring PDF files is one thing. Certifying your authorship and making sure your work is not tampered with is another. By digitaly signing a PDF file you effectively enable the end user to verify that:

*You are indeed the author of this document.
*The document has not been changed after the signing (e.g. by a virus).

It turns out that the procedure of signing is pretty easy and straightforward:
*Get a private digital certificate from a trusted public authority. E.g. members of the Aristotle University of Thessaloniki can get a personal certificate [[here|http://noc.auth.gr/services/personal/certificates/index.html]]. A certificate is essentially a statement that 'Organization (X) certifies that your are (who you say you are)'. ''A personal certificate is much like an ID: keep it safe-don't share it!'' 
*Install the certificate. In Windows, simply execute the //.cert// file that you got from the public authority.
*Produce a PDF document. Any way you like (LaTEX, PDF printers, etc.) is fine.
*Download and install [[DigiSigner|http://noc.auth.gr/services/personal/certificates/index.html]] (freeware).
*From within the DigiSigner GUI, open your PDF file and click on //'Signature'// or //'Visible Signature'//. And that's it! The difference between the two choices is that the latter adds a small, visible icon on the PDF (e.g. on page 1) that serves as a warning that this document is signed: 

[img(290+,290+)[http://users.auth.gr/~cliaskos/images/sign.png]]

Both choices have the same functionality though.

After that, a reader may validate your authorship and the document's integrity by simply opening the PDF file. If you have added a visible signature, the reader can also validate the document by clicking on the visible icon.  

//Links://

Special thanks to the [[Network Operations Center|http://noc.auth.gr]] of the [[Aristotle University of Thessaloniki|http://www.auth.gr]] for yet another useful and practical [[post|http://noc.auth.gr/manuals2/certificates/signpdf/]]!

!I.H.U. School of Science: Virtual Laboratories on WCM and WSN

Development of the virtual labs software on wireless communications and sensor networks has started! 

A relevant [[page|http://www.tech.ihu.edu.gr/index.php/projects/virtual-labs/156-wireless-telecommunication-and-sensor-networks.html]] has been created at the website of the School of Science and Technology.

(Host: [[International Hellenic University|http://www.ihu.edu.gr]]).

/***
|Name|ImageSizePlugin|
|Source|http://www.TiddlyTools.com/#ImageSizePlugin|
|Version|1.2.1|
|Author|Eric Shulman|
|License|http://www.TiddlyTools.com/#LegalStatements|
|~CoreVersion|2.1|
|Type|plugin,formatter|
|Requires||
|Overrides|'image' formatter|
|Description|adds support for resizing images|
This plugin adds optional syntax to scale an image to a specified width and height and/or interactively resize the image with the mouse.
!!!!!Usage
<<<
The extended image syntax is:
{{{
[img(w+,h+)[...][...]]
}}}
where ''(w,h)'' indicates the desired width and height (in CSS units, e.g., px, em, cm, in, or %). Use ''auto'' (or a blank value) for either dimension to scale that dimension proportionally (i.e., maintain the aspect ratio). You can also calculate a CSS value 'on-the-fly' by using a //javascript expression// enclosed between """{{""" and """}}""". Appending a plus sign (+) to a dimension enables interactive resizing in that dimension (by dragging the mouse inside the image). Use ~SHIFT-click to show the full-sized (un-scaled) image. Use ~CTRL-click to restore the starting size (either scaled or full-sized).
<<<
!!!!!Examples
<<<
{{{
[img(100px+,75px+)[images/meow2.jpg]]
}}}
[img(100px+,75px+)[images/meow2.jpg]]
{{{
[<img(34%+,+)[images/meow.gif]]
[<img(21% ,+)[images/meow.gif]]
[<img(13%+, )[images/meow.gif]]
[<img( 8%+, )[images/meow.gif]]
[<img( 5% , )[images/meow.gif]]
[<img( 3% , )[images/meow.gif]]
[<img( 2% , )[images/meow.gif]]
[img(  1%+,+)[images/meow.gif]]
}}}
[<img(34%+,+)[images/meow.gif]]
[<img(21% ,+)[images/meow.gif]]
[<img(13%+, )[images/meow.gif]]
[<img( 8%+, )[images/meow.gif]]
[<img( 5% , )[images/meow.gif]]
[<img( 3% , )[images/meow.gif]]
[<img( 2% , )[images/meow.gif]]
[img(  1%+,+)[images/meow.gif]]
{{tagClear{
}}}
<<<
!!!!!Revisions
<<<
2009.02.24 [1.2.1] cleanup width/height regexp, use '+' suffix for resizing
2009.02.22 [1.2.0] added stretchable images
2008.01.19 [1.1.0] added evaluated width/height values
2008.01.18 [1.0.1] regexp for "(width,height)" now passes all CSS values to browser for validation
2008.01.17 [1.0.0] initial release
<<<
!!!!!Code
***/
//{{{
version.extensions.ImageSizePlugin= {major: 1, minor: 2, revision: 1, date: new Date(2009,2,24)};
//}}}
//{{{
var f=config.formatters[config.formatters.findByField("name","image")];
f.match="\\[[<>]?[Ii][Mm][Gg](?:\\([^,]*,[^\\)]*\\))?\\[";
f.lookaheadRegExp=/\[([<]?)(>?)[Ii][Mm][Gg](?:\(([^,]*),([^\)]*)\))?\[(?:([^\|\]]+)\|)?([^\[\]\|]+)\](?:\[([^\]]*)\])?\]/mg;
f.handler=function(w) {
	this.lookaheadRegExp.lastIndex = w.matchStart;
	var lookaheadMatch = this.lookaheadRegExp.exec(w.source)
	if(lookaheadMatch && lookaheadMatch.index == w.matchStart) {
		var floatLeft=lookaheadMatch[1];
		var floatRight=lookaheadMatch[2];
		var width=lookaheadMatch[3];
		var height=lookaheadMatch[4];
		var tooltip=lookaheadMatch[5];
		var src=lookaheadMatch[6];
		var link=lookaheadMatch[7];

		// Simple bracketted link
		var e = w.output;
		if(link) { // LINKED IMAGE
			if (config.formatterHelpers.isExternalLink(link)) {
				if (config.macros.attach && config.macros.attach.isAttachment(link)) {
					// see [[AttachFilePluginFormatters]]
					e = createExternalLink(w.output,link);
					e.href=config.macros.attach.getAttachment(link);
					e.title = config.macros.attach.linkTooltip + link;
				} else
					e = createExternalLink(w.output,link);
			} else 
				e = createTiddlyLink(w.output,link,false,null,w.isStatic);
			addClass(e,"imageLink");
		}

		var img = createTiddlyElement(e,"img");
		if(floatLeft) img.align="left"; else if(floatRight) img.align="right";
		if(width||height) {
			var x=width.trim(); var y=height.trim();
			var stretchW=(x.substr(x.length-1,1)=='+'); if (stretchW) x=x.substr(0,x.length-1);
			var stretchH=(y.substr(y.length-1,1)=='+'); if (stretchH) y=y.substr(0,y.length-1);
			if (x.substr(0,2)=="{{")
				{ try{x=eval(x.substr(2,x.length-4))} catch(e){displayMessage(e.description||e.toString())} }
			if (y.substr(0,2)=="{{")
				{ try{y=eval(y.substr(2,y.length-4))} catch(e){displayMessage(e.description||e.toString())} }
			img.style.width=x.trim(); img.style.height=y.trim();
			config.formatterHelpers.addStretchHandlers(img,stretchW,stretchH);
		}
		if(tooltip) img.title = tooltip;

		// GET IMAGE SOURCE
		if (config.macros.attach && config.macros.attach.isAttachment(src))
			src=config.macros.attach.getAttachment(src); // see [[AttachFilePluginFormatters]]
		else if (config.formatterHelpers.resolvePath) { // see [[ImagePathPlugin]]
			if (config.browser.isIE || config.browser.isSafari) {
				img.onerror=(function(){
					this.src=config.formatterHelpers.resolvePath(this.src,false);
					return false;
				});
			} else
				src=config.formatterHelpers.resolvePath(src,true);
		}
		img.src=src;
		w.nextMatch = this.lookaheadRegExp.lastIndex;
	}
}

config.formatterHelpers.addStretchHandlers=function(e,stretchW,stretchH) {
	e.title=((stretchW||stretchH)?'DRAG=stretch/shrink, ':'')
		+'SHIFT-CLICK=show full size, CTRL-CLICK=restore initial size';
	e.statusMsg='width=%0, height=%1';
	e.style.cursor='move';
	e.originalW=e.style.width;
	e.originalH=e.style.height;
	e.minW=Math.max(e.offsetWidth/20,10);
	e.minH=Math.max(e.offsetHeight/20,10);
	e.stretchW=stretchW;
	e.stretchH=stretchH;
	e.onmousedown=function(ev) { var ev=ev||window.event;
		this.sizing=true;
		this.startX=!config.browser.isIE?ev.pageX:(ev.clientX+findScrollX());
		this.startY=!config.browser.isIE?ev.pageY:(ev.clientY+findScrollY());
		this.startW=this.offsetWidth;
		this.startH=this.offsetHeight;
		return false;
	};
	e.onmousemove=function(ev) { var ev=ev||window.event;
		if (this.sizing) {
			var s=this.style;
			var currX=!config.browser.isIE?ev.pageX:(ev.clientX+findScrollX());
			var currY=!config.browser.isIE?ev.pageY:(ev.clientY+findScrollY());
			var newW=(currX-this.offsetLeft)/(this.startX-this.offsetLeft)*this.startW;
			var newH=(currY-this.offsetTop )/(this.startY-this.offsetTop )*this.startH;
			if (this.stretchW) s.width =Math.floor(Math.max(newW,this.minW))+'px';
			if (this.stretchH) s.height=Math.floor(Math.max(newH,this.minH))+'px';
			clearMessage(); displayMessage(this.statusMsg.format([s.width,s.height]));
		}
		return false;
	};
	e.onmouseup=function(ev) { var ev=ev||window.event;
		if (ev.shiftKey) { this.style.width=this.style.height=''; }
		if (ev.ctrlKey)  { this.style.width=this.originalW; this.style.height=this.originalH; }
		this.sizing=false;
		clearMessage();
		return false;
	};
	e.onmouseout=function(ev) { var ev=ev||window.event;
		this.sizing=false;
		clearMessage();
		return false;
	};
}
//}}}

/***
|Name|InlineJavascriptPlugin|
|Source|http://www.TiddlyTools.com/#InlineJavascriptPlugin|
|Documentation|http://www.TiddlyTools.com/#InlineJavascriptPluginInfo|
|Version|1.9.6|
|Author|Eric Shulman|
|License|http://www.TiddlyTools.com/#LegalStatements|
|~CoreVersion|2.1|
|Type|plugin|
|Description|Insert Javascript executable code directly into your tiddler content.|
''Call directly into TW core utility routines, define new functions, calculate values, add dynamically-generated TiddlyWiki-formatted output'' into tiddler content, or perform any other programmatic actions each time the tiddler is rendered.
!!!!!Documentation
>see [[InlineJavascriptPluginInfo]]
!!!!!Revisions
<<<
2010.12.15 1.9.6 allow (but ignore) type="..." syntax
|please see [[InlineJavascriptPluginInfo]] for additional revision details|
2005.11.08 1.0.0 initial release
<<<
!!!!!Code
***/
//{{{
version.extensions.InlineJavascriptPlugin= {major: 1, minor: 9, revision: 6, date: new Date(2010,12,15)};

config.formatters.push( {
	name: "inlineJavascript",
	match: "\\<script",
	lookahead: "\\<script(?: type=\\\"[^\\\"]*\\\")?(?: src=\\\"([^\\\"]*)\\\")?(?: label=\\\"([^\\\"]*)\\\")?(?: title=\\\"([^\\\"]*)\\\")?(?: key=\\\"([^\\\"]*)\\\")?( show)?\\>((?:.|\\n)*?)\\</script\\>",
	handler: function(w) {
		var lookaheadRegExp = new RegExp(this.lookahead,"mg");
		lookaheadRegExp.lastIndex = w.matchStart;
		var lookaheadMatch = lookaheadRegExp.exec(w.source)
		if(lookaheadMatch && lookaheadMatch.index == w.matchStart) {
			var src=lookaheadMatch[1];
			var label=lookaheadMatch[2];
			var tip=lookaheadMatch[3];
			var key=lookaheadMatch[4];
			var show=lookaheadMatch[5];
			var code=lookaheadMatch[6];
			if (src) { // external script library
				var script = document.createElement("script"); script.src = src;
				document.body.appendChild(script); document.body.removeChild(script);
			}
			if (code) { // inline code
				if (show) // display source in tiddler
					wikify("{{{\n"+lookaheadMatch[0]+"\n}}}\n",w.output);
				if (label) { // create 'onclick' command link
					var link=createTiddlyElement(w.output,"a",null,"tiddlyLinkExisting",wikifyPlainText(label));
					var fixup=code.replace(/document.write\s*\(/gi,'place.bufferedHTML+=(');
					link.code="function _out(place,tiddler){"+fixup+"\n};_out(this,this.tiddler);"
					link.tiddler=w.tiddler;
					link.onclick=function(){
						this.bufferedHTML="";
						try{ var r=eval(this.code);
							if(this.bufferedHTML.length || (typeof(r)==="string")&&r.length)
								var s=this.parentNode.insertBefore(document.createElement("span"),this.nextSibling);
							if(this.bufferedHTML.length)
								s.innerHTML=this.bufferedHTML;
							if((typeof(r)==="string")&&r.length) {
								wikify(r,s,null,this.tiddler);
								return false;
							} else return r!==undefined?r:false;
						} catch(e){alert(e.description||e.toString());return false;}
					};
					link.setAttribute("title",tip||"");
					var URIcode='javascript:void(eval(decodeURIComponent(%22(function(){try{';
					URIcode+=encodeURIComponent(encodeURIComponent(code.replace(/\n/g,' ')));
					URIcode+='}catch(e){alert(e.description||e.toString())}})()%22)))';
					link.setAttribute("href",URIcode);
					link.style.cursor="pointer";
					if (key) link.accessKey=key.substr(0,1); // single character only
				}
				else { // run script immediately
					var fixup=code.replace(/document.write\s*\(/gi,'place.innerHTML+=(');
					var c="function _out(place,tiddler){"+fixup+"\n};_out(w.output,w.tiddler);";
					try	 { var out=eval(c); }
					catch(e) { out=e.description?e.description:e.toString(); }
					if (out && out.length) wikify(out,w.output,w.highlightRegExp,w.tiddler);
				}
			}
			w.nextMatch = lookaheadMatch.index + lookaheadMatch[0].length;
		}
	}
} )
//}}}

// // Backward-compatibility for TW2.1.x and earlier
//{{{
if (typeof(wikifyPlainText)=="undefined") window.wikifyPlainText=function(text,limit,tiddler) {
	if(limit > 0) text = text.substr(0,limit);
	var wikifier = new Wikifier(text,formatter,null,tiddler);
	return wikifier.wikifyPlain();
}
//}}}

// // GLOBAL FUNCTION: $(...) -- 'shorthand' convenience syntax for document.getElementById()
//{{{
if (typeof($)=='undefined') { function $(id) { return document.getElementById(id.replace(/^#/,'')); } }
//}}}

#<<tiddler journalTOC>>
#<<tiddler journalBTS_Hovering>>
#<<tiddler journalTNET1>>
#<<tiddler journalTBC1>>
#<<tiddler journalTVT1>>
#<<tiddler journalWCM1>>

!Internation Hellenic University: Virtual Laboratories

The [[International Hellenic University|http://www.ihu.edu.gr]] is incorporating
virtual laboratories courses into its programme. Covered subjects are:

*Decision Support Systems and Knowledge Management,
*Wireless Telecommunication and Sensor Networks,
*Multimedia Systems in Telecommunication,
*Medicine and Remote Sensing applications,
*Environmental Monitoring & Energy Efficiency.

For more information visit [[this link.|http://www.tech.ihu.edu.gr/index.php/projects/virtual-labs.html]]

//All produced software will be publically available for free use and modification.//

!Virtual lab #3 (a.k.a. Test Drive) completed!

The third virtual lab covers the case of designing telecommunication systems for hilly environment macrocell. 
A 3D test-drive of a vehicle measuring field data over a hilly terrain is included. 
Visit [[this page|http://www.tech.ihu.edu.gr/index.php/projects/virtual-labs/156-wireless-telecommunication-and-sensor-networks.html]] for more.

[[Progress Report #3|http://users.auth.gr/~cliaskos/files/apps/p_report3.zip]]

//Screenshots://

[img(400+,400+)[http://users.auth.gr/~cliaskos/images/vlabs3.jpg]]

@@Quick access:@@ <<tag log>>

<<tiddler "Mar 3, 2011">>
<<tiddler "Feb 22, 2011">>
<<tiddler "Dec 16, 2010">>
<<tiddler "Dec 1, 2010">>
<<tiddler "Nov 15, 2010">>
<<tiddler "Oct 1, 2010">>
<<tiddler "Sept 3, 2010">>
<<tiddler "July 31, 2010">>
<<tiddler "May 30, 2010">>
<<tiddler "April 17, 2010">>
<<tiddler "February 15, 2010">>
<<tiddler "January 5, 2010">>
<<tiddler "December 22, 2009">>
<<tiddler "December 20, 2009">>
<<tiddler "December 28, 2009">>
<<tiddler "December 07, 2009">>
<<tiddler "December 04, 2009">>
<<tiddler "November 23, 2009">>
<<tiddler "November 20, 2009">>
<<tiddler "November 19, 2009">>

A mathematical markup language and a converting program from textual input to various graphical formats (like pdf). It produces beautiful mathematical texts. LaTeX is the standard way (in the scientific world) to write scientific texts (and presentations). It is also a way of expressing mathematics in text. Mathematical expressions are tagged with a dollar sign

Examples: 

$f(x) = \sum_{i=1}^N \frac{i}{N}a_i x^i$

Array environment with a single doesn't appear to render correctly:
 
! This works
$$ \mathbf{A} = \left[ \begin{array}{cccc} 1-x & 0 & 0 & e \\ 0 & 1-x & 0 & f \\ 0 & 0 & 1-x & g \end{array} \right]$$
 
! Just the first line: Notes missing "1" in first entry and displays ampersand
$$ \mathbf{A} = \left[ \begin{array}{cccc}  1-x & 0 & 0 & e  \end{array} \right]$$
 
! If you add a final slash-slash it doesn't display amps, but still missing "1"
$$ \mathbf{A} = \left[ \begin{array}{cccc}  1-x & 0 & 0 & e \\  \end{array} \right]$$
 
 
$$ \mathbf{A} = \left[  1-x \; 0 \; 0 \; e \right]$$

$x_1+3-\frac{5}{4}$
$\DD\left(\frac{4}{3}\pir^3\right)=4\pir^2$ $$x_2$$
$x_1 e^{-x^2/2}$ $$x_2\in\R$$
Surround  ~LaTeX formulas with {{{$}}}-signs:  $\sum_{i=1}^ni=\frac{n(n+1)}{2}$
$$\int_0^{\pi/2} \sin x\,dx=1$$

[[WELCOME]]
[[CV]]
[[PUBLICATIONS]]
[[LOG]]
[[CONTACT]]

!MATLAB to C++/STL.

Thinking in C++/STL terms in not straighforward. It requires a considerable amount of time to become familiar with the iterators, types, adaptors,
containers and algorithms. It is usually much easier to express a mathematical formula in script languages. The MATLAB language is a very popular example of this case: 

any mathematical expression can usually fit in a sigle, tidy line of code, allowing you to focus on the problem itself, rather than the programming language.

Keeping track of what is going on in the code is also easier for the same reason. This ease comes at a price though: notoriously slow run times. MATLAB is known to be typically 10 (or more) times slower than a //very sloppy// corresponding C++/STL implementation. Is it possible to combine the ease of expression of MATLAB with the performance benefits of C++? 

The impeding C++ standard (C++0x) introduces expressiveness improvements which enable you to ''think in MATLAB'' while ''writing in C++/STL''. 
See [[this document|http://users.auth.gr/~cliaskos/files/etc/MATLABtoCppSTL.pdf]].

!The Lorenz Equations
\[\begin{eqnarray}
\dot{x} & = & \sigma(y-x) \\
\dot{y} & = & \rho x - y - xz \\
\dot{z} & = & -\beta z + xy
\end{eqnarray}\]
!The ~Cauchy-Schwarz Inequality
\[ \left( \sum_{k=1}^n a_k b_k \right)^2 \leq \left( \sum_{k=1}^n a_k^2
\right) \left( \sum_{k=1}^n b_k^2 \right) \]
!A Cross Product Formula
\[\mathbf{V}_1 \times \mathbf{V}_2 =  \left|\begin{array}{ccc}
\mathbf{i} & \mathbf{j} & \mathbf{k} \\
\frac{\partial X}{\partial u} &  \frac{\partial Y}{\partial u} & 0 \\ 
             \frac{\partial X}{\partial v} &  \frac{\partial Y}{\partial v}
& 0
\end{array}\right|  \]
!The probability of getting \(k\) heads when flipping \(n\) coins is: 
\[P(E)   = {n \choose k} p^k (1-p)^{ n-k} \]
!An Identity of Ramanujan
\[ \frac{1}{\left(\sqrt{\phi \sqrt{5}}-\phi\right) e^{\frac25 \pi}} =
1+\frac{e^{-2\pi}} {1+\frac{e^{-4\pi}} {1+\frac{e^{-6\pi}}
{1+\frac{e^{-8\pi}} {1+\ldots} } } } \]
!A ~Rogers-Ramanujan Identity
\[  1 +  \frac{q^2}{(1-q)}+\frac{q^6}{(1-q)(1-q^2)}+\cdots =
\prod_{j=0}^{\infty}\frac{1}{(1-q^{5j+2})(1-q^{5j+3})},
\quad\quad \textrm{for}\quad |q|<1. \]
!Maxwell's Equations
\[\begin{eqnarray}
\nabla \times \vec{\mathbf{B}} -\, \frac1c\,\frac{\partial\vec{\mathbf{E}}}{\partial t} & = & \frac{4\pi}{c}\vec{\mathbf{j}} \\
\nabla \cdot \vec{\mathbf{E}} & = & 4 \pi \rho \\
\nabla \times \vec{\mathbf{E}}\, +\, \frac1c\,\frac{\partial\vec{\mathbf{B}}}{\partial t} & = &\vec{\mathbf{0}} \\
\nabla \cdot \vec{\mathbf{B}} & = & 0
\end{eqnarray}\]
Finally, while display equations look good for a page of samples, the ability to mix math and text in a paragraph is also important. This expression \(\sqrt{3x-1}+(1+x)^2\) is an example of an inline equation.  As you see, ~MathJax equations can be used this way as well, without unduly disturbing the spacing between lines.

This is a [[wiki]] (a web page that can be edited) that can be saved on web or locally, so that it can serve as a personal notebook. Moreover, it is possible to add mathematical expressions and plots, so it is can be used as a mathematical notebook, useful for distributing notes of scientific courses and for personal contributions. 

It is based on [[TiddlyWiki|http://www.tiddlywiki.com]] (a wiki in a page), powered by [[TiddlySpot|http://www.tiddlyspot.com]] (a TiddlyWiki repository), with the [[MathSVGPlugin]] plugin by [[Paulo Soares|http://www.math.ist.utl.pt/~psoares/MathSVG.html]].

[>img[figuras/MSVGlogo.png]] (:graph({width:100,height:120,scales:[0,3,-2,1.8],coords:"none"})
grid({dx:0.5});
text([0,0.15],"$\\Sigma$",{fontsize:80,fontfill:"grey",pos:"e"});
text([0,0.1],"$\\Sigma$",{fontsize:76,fontfill:"#afc6e9",pos:"e"});
text([0,-1.75],"MathSVG",{fontsize:19,fill:"black",fontweight:"bold",pos:"e"});
text([1.3,0.1],"$x^2+\\frac{b}{a}=0$",{fontsize:10,fontfill:"red",pos:"e"});
text([0.05,-1.2],"$(a,b]= \\{x \\in \\R$",{fontsize:12,fontfill:"red",pos:"e"});
circle([2.5,1.1],0.4,{stroke:"orange",strokewidth:2,fill:"#eee"});
text([2.5,1.1],"1.0",{fontfill:"blue",fontsize:11});
:)

The ~MathSVG part of the plugin in this ~TidddlyWiki is minified in order to minimize the plugin's size. The original version of that code can be download [[here|MathSVG.js]].

/***
|''Name:''|MathSVGPlugin|
|''Description:''|This plugin translates a subset of the LaTeX math notation to MathML with a customisable  image fallback when MathML is not supported. It also provides an easy way to produce mathematical SVG graphics with dynamical features and animation.|
|''Version:''|1.2.2|
|''Date:''|2009-06-25|
|''Source:''|http://www.math.ist.utl.pt/~psoares/mathsvg.html|
|''Author:''|Paulo Soares|
|''License:''|[[GNU Lesser General Public License|http://www.gnu.org/licences/lgpl.html]]|
|''~CoreVersion:''|2.5.0|
!Original copyright notice
{{{
ASCIIMathML.js
==============
Version 2.1 Oct 8, 2008, (c) Peter Jipsen http://www.chapman.edu/~jipsen
This version extends ASCIIMathML.js with LaTeXMathML.js and ASCIIsvg.js.
Latest version at http://www.chapman.edu/~jipsen/mathml/ASCIIMathML.js
If you use it on a webpage, please send the URL to jipsen@chapman.edu

The LaTeXMathML modifications were made by Douglas Woodall, June 2006.
(for details see header on the LaTeXMathML part in middle of file)
Extensive clean-up and improvements by Paulo Soares, Oct 2007.

This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or (at
your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT 
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License 
(at http://www.gnu.org/licences/lgpl.html) for more details.
}}}
!~MathSVG code (minified)
***/
//{{{
Math.sec=function(a){return 1/Math.cos(a)};Math.csc=function(a){return 1/Math.sin(a)};Math.cot=function(a){return 1/Math.tan(a)};Math.asec=function(a){return Math.acos(1/a)};Math.acsc=function(a){return Math.asin(1/a)};Math.acot=function(a){return Math.atan(1/a)};Math.sinh=function(a){return(Math.exp(a)-Math.exp(-a))/2};Math.cosh=function(a){return(Math.exp(a)+Math.exp(-a))/2};Math.tanh=function(a){return(Math.exp(a)-Math.exp(-a))/(Math.exp(a)+Math.exp(-a))};Math.sech=function(a){return 1/Math.cosh(a)};Math.csch=function(a){return 1/Math.sinh(a)};Math.coth=function(a){return 1/Math.tanh(a)};Math.asinh=function(a){return Math.log(a+Math.sqrt(a*a+1))};Math.acosh=function(a){return Math.log(a+Math.sqrt(a*a-1))};Math.atanh=function(a){return Math.log((1+a)/(1-a))/2};Math.sech=function(a){return 1/Math.cosh(a)};Math.csch=function(a){return 1/Math.sinh(a)};Math.coth=function(a){return 1/Math.tanh(a)};Math.asech=function(a){return Math.acosh(1/a)};Math.acsch=function(a){return Math.asinh(1/a)};Math.acoth=function(a){return Math.atanh(1/a)};Math.sign=function(a){return(a===0?0:(a<0?-1:1))};Math.step=function(a,c,b){return(a<0?(b?b:0):(c?c:1))};Math.root=function(a,b){return Math.pow(a,1/b)};Math.factorial=function(b){if(b===0){return 1}if(b<0){if((b%1)===0){return}if(b>-1){return Math.factorial(b+1)/(b+1)}return -Math.PI/(Math.factorial(-1-b)*Math.sin(Math.PI*b))}var a=b;if((b%1)===0){while(b>1){b=b-1;a=a*b}}else{a=Math.exp((b+0.5)*Math.log(b+1)-b-b*(0.1121105+b*0.08106103)/(1.452342+b*(2.410858+b)))}return a};Math.Gamma=function(a){return Math.factorial(a-1)};Math.Beta=function(a,b){return Math.Gamma(a)*Math.Gamma(b)/Math.Gamma(a+b)};Math.C=function(a,b){var c=1/((a+1)*Math.Beta(b+1,a-b+1));return c};Math.truncate=function(a,c){var b=c||0;return Math.floor(a*Math.pow(10,b))/Math.pow(10,b)};Math.randomString=function(a,g){var f=(g||"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz").split("");var e=[],c=Math.random;var d=f.length;for(var 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rm $\mathrm{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
rm $\mathrm{abcdefghijklmnopqrstuvwxyz}$

it $\mathit{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
it $\mathit{abcdefghijklmnopqrstuvwxyz}$

sf $\mathsf{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
sf $\mathsf{abcdefghijklmnopqrstuvwxyz}$

tt $\mathtt{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
tt $\mathtt{abcdefghijklmnopqrstuvwxyz}$

bf $\mathbf{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
bf $\mathbf{abcdefghijklmnopqrstuvwxyz}$

bb $\mathbb{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
bb $\mathbb{abcdefghijklmnopqrstuvwxyz}$

frak $\mathfrak{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
frak $\mathfrak{abcdefghijklmnopqrstuvwxyz}$

cal $\mathcal{ABCDEFGHIJKLMNOPQRSTUVWXYZ}$
cal $\mathcal{abcdefghijklmnopqrstuvwxyz}$

!Virtual lab on channel characteristics completed!

The second of the five virtual labs is completed. 
Topics covered are Rayleigh Channels, Rice Channels, Statistical generation of wireless channels, 
First order fading statistics, Second order fading statistics, Narrowband channel modeling and Wideband channel modeling
Visit [[this page|http://www.tech.ihu.edu.gr/index.php/projects/virtual-labs/156-wireless-telecommunication-and-sensor-networks.html]] for more.

[[Progress Report #2|http://users.auth.gr/~cliaskos/files/apps/p_report2.zip]]

//Screenshots://
[img(400+,400+)[http://users.auth.gr/~cliaskos/images/vlabs2.jpg]]

<span class='SVGgraph' options='width:300> axes(); plot("sin(x)"); </span>

<div class='SVGgraph' options='width:300,height:200,scales:[-3,3,-2,2]'>
axes();
grid({dx:0.5,dy:0.5});
plot("(x-2)*(x-1)*x*(x+1)*(x+2)/2",{min:-2.5,max:2.5});
</div>

$\diagup X\ind Y \tilde{A} \varnothing$

$A = \left(\begin{array}{ccc}
1-x & 0 & 0 \\ 0 & 1-x & 0 \\ 0 & 0 & 1-x \end{array}\right)$

$\sum a_i + \sum_{i=0}^{+\infty} b_i$

$f(x) = \left\{\begin{array}{ll}
x^2 \sin \frac1x & \textrm{if} x \ne 0, \\
0 & \textrm{if} x = 0 .
\end{array}\right.$

$\displaystyle{ \lim_{x\to\infty} f(x) = k \choose r + \frac{a}{b} \sum_{n=1}^{+\infty} a_n + \left\{ \frac{1}{13} \sum_{n=1}^{+\infty} b_n \right\} }$

!VLABS project completion

The "Virtual Laboratories on Wireless Communications and Sensor Networks" project has been completed today, with the addition of two more simulation scenarios: 

*DVB-T Network planning (Two test cases),
*Indoors Network planning.  

[[Dr. George Koutitas|mailto:g.koutitas@ihu.edu.gr]] contributed material from his past research studies for both of these labs. Special thanks for his beta testing efforts on all VLABS. 

//Screenshots://
[img(400+,350+)[http://users.auth.gr/~cliaskos/images/DVB-T.png]]
[img(400+,350+)[http://users.auth.gr/~cliaskos/images/indoors.png]]

!Initial Post

The section is Operational! 
I will be posting material about the undergraduate courses 
"Computer Networks" and "Communication Networks" of the Dept. of Informatics, A.U.Th. soon.

!Computer Networks - Extra Material

Added some extra exercises for chapters 4 (IP) and 5 (TCP).
We'd like to thank the [[Hellenic Open University|http://www.hou.gr/]] for supplying some of them.
Also added the solutions manual for the Tanenbaum's course book.
Download links are available below.

@@(Links have been purposedly removed)@@

!Computer Networks - Translated Exercises

The translated coursebook exercises have been added.
Available for download below.

@@(Links have been purposedly removed)@@

!Extensible, open, multi-purpose, node-based, point'n'click GUI for MATLAB

In the process of standardizing all future virtual laboratories (which will soon include DVB-T and indoors-WiFi planning) we have produced a generic GUI that provides a complete way of viewing/editing/placing/criteria-based-selecting custom node types and defining corresponding interactions between them. A node represents any entity of a system in general, even though we had communication systems in mind mostly. The user may also set global environmental variables and define user-triggered actions. 

This will be soon freely available through the [[I.H.U. site|http://www.tech.ihu.edu.gr/]], alongside the corresponding documentation, as part of the virtual labs that employ it. If you are interested though, mail me and I will provide the complete current source code. Hopefully, it will make your work a bit easier!

//Screenshots://
[img(400+,350+)[http://users.auth.gr/~cliaskos/images/paci.png]]

Find by year: <<tag 2008>> <<tag 2009>> <<tag 2010>> <<tag 2011>> <<tag 2012>>
Find by type: <<tag conference>> <<tag journal>>
(Show [[CONFERENCES]] only) - (Show [[JOURNALS]] only)
!JOURNALS
<<tiddler JOURNALS>>
!CONFERENCES
<<tiddler CONFERENCES>>
|This research has been co-ﬁnanced by the European Union (European Social Fund – ESF) and Greek national funds through the Operational Program "Education and Lifelong Learning" of the National Strategic Reference Framework (NSRF) - Research Funding Program: ''Heracleitus II''. Investing in knowledge society through the European Social Fund.|[img[European Union-European Social Fund|http://users.auth.gr/cliaskos/images/eu.jpg]]|

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<div id='displayArea'>
<div id='messageArea'></div>
<div id='tiddlerDisplay'></div>
</div>

*Shift + left mouse button (LMB) click -- show/hide toolbar
*LMB drag and drop -- pan
*Mouse wheel -- zoom in/out (also available in the toolbar)
*Shift + Mouse wheel -- resize (also available in the toolbar)

!Virtual lab #4 (Sensor Networks Lab) completed!

The fourth virtual lab covers Topology Maintenance, Topology Control, Battery Models and Ad-Hoc Routing Protocol design considerations. It will comprise of two separate applications, written in JAVA and MATLAB. They are based on well-known published simulator engines, freely available through GNU/GLP. 

Visit [[this page|http://www.tech.ihu.edu.gr/index.php/projects/virtual-labs/156-wireless-telecommunication-and-sensor-networks.html]] for more.
Soon to be available to anyone interested, for absolutely free testing, use, or simple comments. 

Stay tuned at the [[I.H.U. site|http://www.tech.ihu.edu.gr/]] for more.

<<search>><<closeAll>><<permaview>><<newTiddler>><<newJournal "DD MMM YYYY" "journal">><<saveChanges>><<slider chkSliderOptionsPanel OptionsPanel "options »" "Change TiddlyWiki advanced options">> <<tiddler ToggleRightSidebar>> [[TiddlyWikiCheatSheet]] [[Control Panel]]

<<tabs txtMainTab "Timeline" "Timeline" TabTimeline "All" "All tiddlers" TabAll "Tags" "All tags" TabTags "More" "More lists" TabMore>>

/***
|Name|SinglePageModePlugin|
|Source|http://www.TiddlyTools.com/#SinglePageModePlugin|
|Documentation|http://www.TiddlyTools.com/#SinglePageModePluginInfo|
|Version|2.9.7|
|Author|Eric Shulman|
|License|http://www.TiddlyTools.com/#LegalStatements|
|~CoreVersion|2.1|
|Type|plugin|
|Description|Show tiddlers one at a time with automatic permalink, or always open tiddlers at top/bottom of page.|
This plugin allows you to configure TiddlyWiki to navigate more like a traditional multipage web site with only one tiddler displayed at a time.
!!!!!Documentation
>see [[SinglePageModePluginInfo]]
!!!!!Configuration
<<<
<<option chkSinglePageMode>> Display one tiddler at a time
><<option chkSinglePagePermalink>> Automatically permalink current tiddler
><<option chkSinglePageKeepFoldedTiddlers>> Don't close tiddlers that are folded
><<option chkSinglePageKeepEditedTiddlers>> Don't close tiddlers that are being edited
<<option chkTopOfPageMode>> Open tiddlers at the top of the page
<<option chkBottomOfPageMode>> Open tiddlers at the bottom of the page
<<option chkSinglePageAutoScroll>> Automatically scroll tiddler into view (if needed)

Notes:
* The "display one tiddler at a time" option can also be //temporarily// set/reset by including a 'paramifier' in the document URL: {{{#SPM:true}}} or {{{#SPM:false}}}.
* If more than one display mode is selected, 'one at a time' display takes precedence over both 'top' and 'bottom' settings, and if 'one at a time' setting is not used, 'top of page' takes precedence over 'bottom of page'.
* When using Apple's Safari browser, automatically setting the permalink causes an error and is disabled.
<<<
!!!!!Revisions
<<<
2010.11.30 2.9.7 use story.getTiddler()
2008.10.17 2.9.6 changed chkSinglePageAutoScroll default to false
| Please see [[SinglePageModePluginInfo]] for previous revision details |
2005.08.15 1.0.0 Initial Release.  Support for BACK/FORWARD buttons adapted from code developed by Clint Checketts.
<<<
!!!!!Code
***/
//{{{
version.extensions.SinglePageModePlugin= {major: 2, minor: 9, revision: 7, date: new Date(2010,11,30)};
//}}}
//{{{
config.paramifiers.SPM = { onstart: function(v) {
	config.options.chkSinglePageMode=eval(v);
	if (config.options.chkSinglePageMode && config.options.chkSinglePagePermalink && !config.browser.isSafari) {
		config.lastURL = window.location.hash;
		if (!config.SPMTimer) config.SPMTimer=window.setInterval(function() {checkLastURL();},1000);
	}
} };
//}}}
//{{{
if (config.options.chkSinglePageMode==undefined)
	config.options.chkSinglePageMode=false;
if (config.options.chkSinglePagePermalink==undefined)
	config.options.chkSinglePagePermalink=true;
if (config.options.chkSinglePageKeepFoldedTiddlers==undefined)
	config.options.chkSinglePageKeepFoldedTiddlers=false;
if (config.options.chkSinglePageKeepEditedTiddlers==undefined)
	config.options.chkSinglePageKeepEditedTiddlers=false;
if (config.options.chkTopOfPageMode==undefined)
	config.options.chkTopOfPageMode=false;
if (config.options.chkBottomOfPageMode==undefined)
	config.options.chkBottomOfPageMode=false;
if (config.options.chkSinglePageAutoScroll==undefined)
	config.options.chkSinglePageAutoScroll=false;
//}}}
//{{{
config.SPMTimer = 0;
config.lastURL = window.location.hash;
function checkLastURL()
{
	if (!config.options.chkSinglePageMode)
		{ window.clearInterval(config.SPMTimer); config.SPMTimer=0; return; }
	if (config.lastURL == window.location.hash) return; // no change in hash
	var tids=decodeURIComponent(window.location.hash.substr(1)).readBracketedList();
	if (tids.length==1) // permalink (single tiddler in URL)
		story.displayTiddler(null,tids[0]);
	else { // restore permaview or default view
		config.lastURL = window.location.hash;
		if (!tids.length) tids=store.getTiddlerText("DefaultTiddlers").readBracketedList();
		story.closeAllTiddlers();
		story.displayTiddlers(null,tids);
	}
}


if (Story.prototype.SPM_coreDisplayTiddler==undefined)
	Story.prototype.SPM_coreDisplayTiddler=Story.prototype.displayTiddler;
Story.prototype.displayTiddler = function(srcElement,tiddler,template,animate,slowly)
{
	var title=(tiddler instanceof Tiddler)?tiddler.title:tiddler;
	var tiddlerElem=story.getTiddler(title); // ==null unless tiddler is already displayed
	var opt=config.options;
	var single=opt.chkSinglePageMode && !startingUp;
	var top=opt.chkTopOfPageMode && !startingUp;
	var bottom=opt.chkBottomOfPageMode && !startingUp;
	if (single) {
		story.forEachTiddler(function(tid,elem) {
			// skip current tiddler and, optionally, tiddlers that are folded.
			if (	tid==title
				|| (opt.chkSinglePageKeepFoldedTiddlers && elem.getAttribute("folded")=="true"))
				return;
			// if a tiddler is being edited, ask before closing
			if (elem.getAttribute("dirty")=="true") {
				if (opt.chkSinglePageKeepEditedTiddlers) return;
				// if tiddler to be displayed is already shown, then leave active tiddler editor as is
				// (occurs when switching between view and edit modes)
				if (tiddlerElem) return;
				// otherwise, ask for permission
				var msg="'"+tid+"' is currently being edited.\n\n";
				msg+="Press OK to save and close this tiddler\nor press Cancel to leave it opened";
				if (!confirm(msg)) return; else story.saveTiddler(tid);
			}
			story.closeTiddler(tid);
		});
	}
	else if (top)
		arguments[0]=null;
	else if (bottom)
		arguments[0]="bottom";
	if (single && opt.chkSinglePagePermalink && !config.browser.isSafari) {
		window.location.hash = encodeURIComponent(String.encodeTiddlyLink(title));
		config.lastURL = window.location.hash;
		document.title = wikifyPlain("SiteTitle") + " - " + title;
		if (!config.SPMTimer) config.SPMTimer=window.setInterval(function() {checkLastURL();},1000);
	}
	if (tiddlerElem && tiddlerElem.getAttribute("dirty")=="true") { // editing... move tiddler without re-rendering
		var isTopTiddler=(tiddlerElem.previousSibling==null);
		if (!isTopTiddler && (single || top))
			tiddlerElem.parentNode.insertBefore(tiddlerElem,tiddlerElem.parentNode.firstChild);
		else if (bottom)
			tiddlerElem.parentNode.insertBefore(tiddlerElem,null);
		else this.SPM_coreDisplayTiddler.apply(this,arguments); // let CORE render tiddler
	} else
		this.SPM_coreDisplayTiddler.apply(this,arguments); // let CORE render tiddler
	var tiddlerElem=story.getTiddler(title);
	if (tiddlerElem&&opt.chkSinglePageAutoScroll) {
		// scroll to top of page or top of tiddler
		var isTopTiddler=(tiddlerElem.previousSibling==null);
		var yPos=isTopTiddler?0:ensureVisible(tiddlerElem);
		// if animating, defer scroll until after animation completes
		var delay=opt.chkAnimate?config.animDuration+10:0;
		setTimeout("window.scrollTo(0,"+yPos+")",delay); 
	}
}

if (Story.prototype.SPM_coreDisplayTiddlers==undefined)
	Story.prototype.SPM_coreDisplayTiddlers=Story.prototype.displayTiddlers;
Story.prototype.displayTiddlers = function() {
	// suspend single/top/bottom modes when showing multiple tiddlers
	var opt=config.options;
	var saveSPM=opt.chkSinglePageMode; opt.chkSinglePageMode=false;
	var saveTPM=opt.chkTopOfPageMode; opt.chkTopOfPageMode=false;
	var saveBPM=opt.chkBottomOfPageMode; opt.chkBottomOfPageMode=false;
	this.SPM_coreDisplayTiddlers.apply(this,arguments);
	opt.chkBottomOfPageMode=saveBPM;
	opt.chkTopOfPageMode=saveTPM;
	opt.chkSinglePageMode=saveSPM;
}
//}}}

's personal web site @ Aristotle University of Thessaloniki<<tiddler ToggleRightSidebar with: ".">>

[img[A.U.Th. Logo|./images/auth_logo.gif]][img[http://caclab.csd.auth.gr/~cliaskos/separator.gif]]@@color(cyan):C. K.@@ //Liaskos//

body {
 background: #464646;
 color: #000;
}

h1,h2,h3,h4,h5 {
 color: #000;
 background: #eee;
}

#sidebar {
 color: #000;
 background: #eeb;
 border-right: 3px solid #bb8;
 border-bottom: 3px solid #520;
}

#sidebarOptions .sliderPanel {
 background: #fff;
}

#sidebarOptions .sliderPanel a {
 border: none;
 color: #700;
}

#sidebarOptions .sliderPanel a:hover {
 color: #fff;
 background: #700;
}

#sidebarOptions .sliderPanel a:active {
 color: #700;
 background: #fff;
}

#sidebarOptions a {
 color: #700;
 border: none;
}

#sidebarOptions a:hover, #sidebarOptions a:active {
 color: #fff;
 background: #700;
}


#messageArea {
 border-right: 3px solid #da1;
 border-bottom: 3px solid #a80;
 background: #ffe72f;
 color: #014;
}


.popup {
 background: #cf6;
 border: none;
}

.popup hr {
 color: #000;
}

.popup li.disabled {
 color: #666;
 background: #cf6;
}

.popup li a, .popup li a:visited {
 color: #000;
 border: 1px outset #cf6;
 background: #cf6;
}

.popup li a:hover {
 color: #000;
 border: 1px outset #cf6;
 background: #ef9;
}


.tiddler {
 background: #fff;
 border-right: 0px solid #aaa;
 border-bottom: 30px solid #464646;
}

.title {
 color: #900;
}


.toolbar {
 color: #000;
}

.toolbar .button {
 background: #eeb /*#cf6*/;
 border: 1px outset #eeb /*#cf6*/;
}

.toolbar .button:hover {
 background: #ef9;
 color: #fff;
}


#mainMenu a.button, #mainMenu a.tiddlyLink, #mainMenu a.externalLink {
 color: #fff;
 border: 2px solid  #464646;
 background-color:  #464646;
}

#mainMenu a:hover,
#mainMenu a.button:hover {
 border: 2px solid #b00;
 color: #fff;
 background-color: #b00;
}

[img[Cheat Sheet|./images/tiddlyCheat.PNG]]

/%
|Name|ToggleReadOnly|
|Source|http://www.TiddlyTools.com/#ToggleReadOnly|
|Version|2.0.0|
|Author|Eric Shulman|
|License|http://www.TiddlyTools.com/#LegalStatements|
|~CoreVersion|2.5|
|Type|transclusion|
|Description|enable/disable global read-only state without reloading your document|

Usage: 
	<<tiddler ToggleReadOnly>> OR
	<<tiddler ToggleReadOnly with: label tip>>

!show
<html><nowiki><span class='button' style='cursor:pointer'
	onclick="this.getElementsByTagName('input')[0].click();" title="$2">
<input type='checkbox' style="margin:0;padding:0;" onclick="
	window.readOnly=this.checked;
	window.showBackstage=!window.readOnly;
	config.macros.option.propagateOption('chkHttpReadOnly','checked',window.readOnly,'input');
	if(showBackstage && !backstage.area) backstage.init();
	backstage.button.style.display=showBackstage?'block':'none';
	backstage.hide();
	story.switchTheme(config.options.txtTheme);
	refreshAll(); story.refreshAllTiddlers(true); // FORCE RE-DISPLAY
	return false;
">$1</span></html><<tiddler {{
	var chk=place.lastChild.getElementsByTagName('input')[0];
	chk.checked=window.readOnly;
'';}}>>
!end

%/<<tiddler ToggleReadOnly##show with:
	{{"$1"=="$"+"1"?"read-only":"$1"}}
	{{"$2"=="$"+"2"?"enable/disable editing functions":"$2"}}
>>

/%
!info
|Name|ToggleRightSidebar|
|Source|http://www.TiddlyTools.com/#ToggleRightSidebar|
|Version|2.0.0|
|Author|Eric Shulman|
|License|http://www.TiddlyTools.com/#LegalStatements|
|~CoreVersion|2.1|
|Type|transclusion|
|Description|show/hide right sidebar (SideBarOptions)|
Usage
<<<
{{{
<<tiddler ToggleRightSidebar>>
<<tiddler ToggleRightSidebar with: label tooltip>>
}}}
Try it: <<tiddler ToggleRightSidebar##show
	with: {{config.options.chkShowRightSidebar?'►':'◄'}}>>
<<<
Configuration:
<<<
copy/paste the following settings into a tiddler tagged with <<tag systemConfig>> and then modify the values to suit your preferences:
{{{
config.options.chkShowRightSidebar=true;
config.options.txtToggleRightSideBarLabelShow="◄";
config.options.txtToggleRightSideBarLabelHide="►";
}}}
<<<
!end
!show
<<tiddler {{
	var co=config.options;
	if (co.chkShowRightSidebar===undefined) co.chkShowRightSidebar=true;
	var sb=document.getElementById('sidebar');
	var da=document.getElementById('displayArea');
	if (sb) {
		sb.style.display=co.chkShowRightSidebar?'block':'none';
		da.style.marginRight=co.chkShowRightSidebar?'':'1em';
	}
'';}}>><html><nowiki><a href='javascript:;' title="$2"
onmouseover="
	this.href='javascript:void(eval(decodeURIComponent(%22(function(){try{('
	+encodeURIComponent(encodeURIComponent(this.onclick))
	+')()}catch(e){alert(e.description?e.description:e.toString())}})()%22)))';"
onclick="
	var co=config.options;
	var opt='chkShowRightSidebar';
	var show=co[opt]=!co[opt];
	var sb=document.getElementById('sidebar');
	var da=document.getElementById('displayArea');
	if (sb) {
		sb.style.display=show?'block':'none';
		da.style.marginRight=show?'':'1em';
	}
	saveOptionCookie(opt);
	var labelShow=co.txtToggleRightSideBarLabelShow||'&#x25C4;';
	var labelHide=co.txtToggleRightSideBarLabelHide||'&#x25BA;';
	if (this.innerHTML==labelShow||this.innerHTML==labelHide) 
		this.innerHTML=show?labelHide:labelShow;
	this.title=(show?'hide':'show')+' right sidebar';
	var sm=document.getElementById('storyMenu');
	if (sm) config.refreshers.content(sm);
	return false;
">$1</a></html>
!end
%/<<tiddler {{
	var src='ToggleRightSidebar';
	src+(tiddler&&tiddler.title==src?'##info':'##show');
}} with: {{
	var co=config.options;
	var labelShow=co.txtToggleRightSideBarLabelShow||'&#x25C4;';
	var labelHide=co.txtToggleRightSideBarLabelHide||'&#x25BA;';
	'$1'!='$'+'1'?'$1':(co.chkShowRightSidebar?labelHide:labelShow);
}} {{
	var tip=(config.options.chkShowRightSidebar?'hide':'show')+' right sidebar';
	'$2'!='$'+'2'?'$2':tip;
}}>>

Welcome to my personal page!

You may access: 
*A short [[curriculum vitae|CV]].
*[[Publications|PUBLICATIONS]] in international journals and conferences in which I had the honor of contributing as an author.
*A [[log|LOG]] in which you may find unofficial material regarding:
**Working technical hints and tips that I had a hard time finding.
**A personal application design calendar + souce code which I hope you will find usefull.
**Undergraduate courses that I have been assigned to co-teach as a ~PhD student.
**Information on events of interest.
**A list of research topics and related links that I find interesting.

Feel free to [[contact me|CONTACT]] for any subject related to the contents of this web page!

^^(This page is powered by the [[TiddlyWiki|http://www.tiddlywiki.com]] engine).^^

<<tiddler SiteTitle>> - <<tiddler SiteSubtitle>>

//C. Liaskos//, G. Papadimitriou, ''Minimizing mean client serving time and broadcast schedule cost in wireless push systems'', __ In Proceedings of the International Symposium on Broadcast Multimedia Systems and Broadcasting (IEEE BMSB'11)__, Nuremberg, Germany, 2011. (d.o.i.:[[10.1109/BMSB.2011.5954928 |http://dx.doi.org/10.1109/BMSB.2011.5954928]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/confBMSB2011.pdf]])

P. Malindretos, P. Bamidis, //C. Liaskos//, A. Papagiannis, D. Vrochides, C. Frantzidis, P. Sarafidis, A. Lasaridis, I. Chryssogonidis, P. Nikolaidis, ''Sound Assessment and Sound Analysis of Arteriovenous Fistula (AVF) in Hemodialysis Patients'', __ In Proceedings of the XLVIII European Renal ~Association-European Dialysis and Transplant Association Congress (~ERA-EDTA 2011)__, Prague, Czech Republic, June 2011. ([[conference program|http://www.eraedta2011.org/finalprogramme.html]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, ''A New Approach to the Design of Wireless Data Broadcasting Systems: An Analysis - Based, Cost - Effective Scheme'', __ In Proceedings of the 1^^st^^ International Conference on Ultra Modern Telecommunications (IEEE ICUMT'09)__, St. Petersburg, Russia, October, 2009. (d.o.i.:[[10.1109/ICUMT.2009.5345463 |http://dx.doi.org/10.1109/ICUMT.2009.5345463]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/confICUMT09.pdf]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, P. Nicopolitidis and A. Pomportsis, ''An analytical approach to the design of wireless broadcast disks systems'', __ In Proceedings of the 9^^th^^ International Symposium on Autonomous Decentralized Systems (IEEE ISADS'09)__, Athens, Greece, March, 2009. (d.o.i.:[[10.1109/ISADS.2009.5207371|http://dx.doi.org/10.1109/ISADS.2009.5207371]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/confISADS09.pdf]])

//C. Liaskos//, A. Xeros, G. Papadimitriou , A. Pitsillides, ''Information Hovering: A New Approach for Performance Acceleration of Wireless Push Systems'', __In Proceedings of the 16^^th^^ Symposium on Computers and Communications (IEEE ISCC'11)__, Corfu, Greece, 2011. (d.o.i.:[[10.1109/ISCC.2011.5983941 |http://dx.doi.org/10.1109/ISCC.2011.5983941]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/confISCC11.pdf]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, ''Combining Optimal Performance with Cost-efficiency in Adaptive Wireless Broadcast-based Systems'', __ In Proceedings of the 15^^th^^ Mediterranean Electrotechnical Conference (IEEE MELECON'10)__, Valetta, Malta, 2010. (d.o.i.:[[10.1109/MELCON.2010.5475915 |http://dx.doi.org/10.1109/MELCON.2010.5475915]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/confMELECON10.pdf]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, P. Nicopolitidis, M.S. Obaidat and A. Pomportsis, ''A Novel Clustering - Driven Approach to Wireless Data Broadcasting'', __ In Proceedings of the 15^^th^^ Symposium on Communications and Vehicular Technology in the Benelux (IEEE SCVT'08)__, Antwerpen, Belgium, November, 2008. ([[direct link|http://users.auth.gr/cliaskos/files/mypapers/confSCVT08.pdf]])

//C. Liaskos//, G. Papadimitriou, ''Ultra lightweight adaptation processes for scheduling servers in push-based systems'', __ In Proceedings of the 17^^th^^ Symposium on Communications and Vehicular Technology in the Benelux (IEEE SCVT'10)__, Enschede, Netherlands, 2010. (d.o.i.:[[10.1109/SCVT.2010.5720465|http://dx.doi.org/10.1109/SCVT.2010.5720465]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/confSCVT10.pdf]])

//C. Liaskos//, A. Xeros, G. Papadimitriou, M. Lestas and A. Pitsillides, ''Balancing Wireless Data Broadcasting and Information Hovering for Efﬁcient Information Dissemination'', __IEEE Transactions on Broadcasting__, Accepted for publication, (d.o.i:[[10.1109/TBC.2011.2163449 |http://dx.doi.org/10.1109/TBC.2011.2163449]])  ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/journalBTShover.pdf]])

//C. Liaskos//, S. Petridou and G. Papadimitriou, ''Cost - Aware Wireless Data Broadcasting'', __IEEE Transactions on Broadcasting__, vol. 56, issue 1, pp 66-76, 2010. (d.o.i:[[10.1109/TBC.2009.2039521|http://dx.doi.org/10.1109/TBC.2009.2039521]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/journalBTS.pdf]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, ''Towards Realizable, Low Cost Broadcast Systems for Dynamic Environments'', __IEEE Transactions on Networking__, vol. 19, issue 2, pp 383-392, 2011. (d.o.i.:[[10.1109/TNET.2010.2062534|http://dx.doi.org/10.1109/TNET.2010.2062534]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/journalTON.pdf]])

//C. Liaskos// and G. Papadimitriou, ''Generalizing the Square Root Rule for Optimal Periodic Scheduling in Push-based Wireless Environments,'' __IEEE Transactions on Computers__, 19 Jan. 2012. IEEE computer Society Digital Library. IEEE Computer Society, (d.o.i:[[10.1109/TC.2012.30|http://doi.ieeecomputersociety.org/10.1109/TC.2012.30]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/journalTOC.pdf]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, P. Nicopolitidis and A. Pomportsis, ''On the Analytical Performance Optimization of Wireless Data Broadcasting'', __IEEE Transactions on Vehicular Technology__, vol. 59, issue 2, pp 884-895, 2010. (d.o.i:[[10.1109/TVT.2009.2035357|http://dx.doi.org/10.1109/TVT.2009.2035357]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/journalTVT.pdf]])

//C. Liaskos//, S. Petridou, G. Papadimitriou, P. Nicopolitidis, M.S. Obaidat and A. Pomportsis, ''Clustering - driven Wireless Data Broadcasting'', __IEEE Wireless Communications Magazine__, vol. 16, issue 6, pp 80-87, 2009. (d.o.i:[[10.1109/MWC.2009.5361182|http://dx.doi.org/10.1109/MWC.2009.5361182]]) ([[preprint|http://users.auth.gr/cliaskos/files/mypapers/journalWCM.pdf]])

if(config.options.txtUserName != "admin") {
        config.options.chkSinglePageMode= false;
        config.options.chkShowRightSidebar=false;
	readOnly = true;
	showBackstage = false;
}