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	<title>TecnoBlog &#187; Tecnologies de la informació</title>
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	<description>e-spai de Tecnologia a l'IES Bellvitge</description>
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		<title>TecnoBlog &#187; Tecnologies de la informació</title>
		<link>http://tecnobloc.wordpress.com</link>
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		<title>Identificació per radiofreqüència</title>
		<link>http://tecnobloc.wordpress.com/2009/11/01/identificacio-per-radiofrequencia/</link>
		<comments>http://tecnobloc.wordpress.com/2009/11/01/identificacio-per-radiofrequencia/#comments</comments>
		<pubDate>Sun, 01 Nov 2009 19:25:28 +0000</pubDate>
		<dc:creator>Carolina</dc:creator>
				<category><![CDATA[GENERAL]]></category>
		<category><![CDATA[Tecnologies de la informació]]></category>
		<category><![CDATA[RFID]]></category>

		<guid isPermaLink="false">http://tecnobloc.wordpress.com/?p=3945</guid>
		<description><![CDATA[La tecnologia RFID (Radio Frequency Identification) permet identificar objectes mitjançant transmissions de radiofreqüència entre un lector (interrogador) i un trasponedor (etiqueta). No cal una visió directa entre emissor i receptor, però la distància entre ells no pot ser molt gran.


Com funciona el sistema RFID
L’objecte en qüestió porta acoblada una etiqueta RFID que conté les seves [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tecnobloc.wordpress.com&blog=1680497&post=3945&subd=tecnobloc&ref=&feed=1" />]]></description>
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			<media:title type="html">funcionament del sistema RFID</media:title>
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			<media:title type="html">etiqueta RFID</media:title>
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		<item>
		<title>RFID, Biometria i + per evitar el robatori de bicis</title>
		<link>http://tecnobloc.wordpress.com/2009/10/17/idees-per-evitar-el-robatori-de-bicis/</link>
		<comments>http://tecnobloc.wordpress.com/2009/10/17/idees-per-evitar-el-robatori-de-bicis/#comments</comments>
		<pubDate>Sat, 17 Oct 2009 18:24:04 +0000</pubDate>
		<dc:creator>Carolina</dc:creator>
				<category><![CDATA[Smart Move]]></category>
		<category><![CDATA[Tecnologies de la informació]]></category>
		<category><![CDATA[bicicleta]]></category>

		<guid isPermaLink="false">http://tecnobloc.wordpress.com/?p=3576</guid>
		<description><![CDATA[No només a nosaltres ens fa por treure la bici al carrer i exposar-la a ser robada. A ciutats com Amsterdam o Copenhague, on tothom es mou en bici també es pateix aquest problema. Us presento unes quantes propostes, que inclouen algunes de les nostres idees. Informeu-vos!

Universitat de Portsmouth: programa WASP (Wireless Asset Security Protection)
Consisteix a [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tecnobloc.wordpress.com&blog=1680497&post=3576&subd=tecnobloc&ref=&feed=1" />]]></description>
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			<media:title type="html">Copenhague</media:title>
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			<media:title type="html">Bike Tree</media:title>
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		<title>Apollo 11. Ja fa 40 anys</title>
		<link>http://tecnobloc.wordpress.com/2009/07/21/apollo-11-ja-fa-40-anys-2/</link>
		<comments>http://tecnobloc.wordpress.com/2009/07/21/apollo-11-ja-fa-40-anys-2/#comments</comments>
		<pubDate>Tue, 21 Jul 2009 16:24:33 +0000</pubDate>
		<dc:creator>Carolina</dc:creator>
				<category><![CDATA[Notícies]]></category>
		<category><![CDATA[Propostes]]></category>
		<category><![CDATA[Tecnologies de la informació]]></category>
		<category><![CDATA[Apollo 11]]></category>

		<guid isPermaLink="false">http://tecnobloc.wordpress.com/?p=2759</guid>
		<description><![CDATA[Fa 40 anys que l’home va arrivar a la Lluna. Increíble la tecnologia que va fer possible no només arrivar, també tornar i, a més, desenvolupar una xarxa de comunicacions entre la Terra i la Lluna quan es trevallava en format analògic i les comunicacions depeníen d’instal·lacions cablejades.


Curiós també és l’ordinador de navegació emprat, l’AGC [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tecnobloc.wordpress.com&blog=1680497&post=2759&subd=tecnobloc&ref=&feed=1" />]]></description>
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			<media:title type="html">Apollo Guidance Computer</media:title>
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			<media:title type="html">Apollo11. papercraft</media:title>
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			<media:title type="html">apollo11-moon-landing</media:title>
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			<media:title type="html">We Choose The Moon</media:title>
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		<title>Com funciona una caixa negra</title>
		<link>http://tecnobloc.wordpress.com/2009/06/04/com-funciona-una-caixa-negra/</link>
		<comments>http://tecnobloc.wordpress.com/2009/06/04/com-funciona-una-caixa-negra/#comments</comments>
		<pubDate>Thu, 04 Jun 2009 17:23:41 +0000</pubDate>
		<dc:creator>Carolina</dc:creator>
				<category><![CDATA[Tecnologies de la informació]]></category>
		<category><![CDATA[caixa negra]]></category>
		<category><![CDATA[tecnologia]]></category>

		<guid isPermaLink="false">http://tecnobloc.wordpress.com/?p=1813</guid>
		<description><![CDATA[Allò que anomenem caixa negra són en realitat dos dispositius d&#8217;enregistrament de dades i de color taronja que porten tots els avions comercials: el CVR (Cockpit Voice Recorder) registra les converses i els sons de la cabina, i el FDR (Flight Data Recorder) registra un munt de paràmetres tècnics del vol.


Dissenyats per resistir pràcticament qualsevol [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tecnobloc.wordpress.com&blog=1680497&post=1813&subd=tecnobloc&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">black blox 1</media:title>
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			<media:title type="html">black box </media:title>
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			<media:title type="html">interior d'unaaixa negra</media:title>
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			<media:title type="html">black box</media:title>
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			<media:title type="html">interior de la caixa negra</media:title>
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			<media:title type="html">flux de dades en un avió</media:title>
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		<title>refrigeració de microprocessadors</title>
		<link>http://tecnobloc.wordpress.com/2008/10/12/refrigeracio-de-microprocessadors/</link>
		<comments>http://tecnobloc.wordpress.com/2008/10/12/refrigeracio-de-microprocessadors/#comments</comments>
		<pubDate>Sun, 12 Oct 2008 05:36:17 +0000</pubDate>
		<dc:creator>Carolina</dc:creator>
				<category><![CDATA[Tecnologies de la informació]]></category>

		<guid isPermaLink="false">http://tecnobloc.wordpress.com/?p=612</guid>
		<description><![CDATA[Un microprocessador està format per milions de transistors canviant d&#8217;estat constantment. Quant més alta sigui la seva freqüència de processat (MHz) més canvis d&#8217;estat es produiran per unitat de temps. Cada cop que un transistor canvia d&#8217;estat, una part de l&#8217;energia elèctrica que consumeix es transforma en calor.
Així doncs, un microprocessador emet una gran quantitat [...]<img alt="" border="0" src="http://stats.wordpress.com/b.gif?host=tecnobloc.wordpress.com&blog=1680497&post=612&subd=tecnobloc&ref=&feed=1" />]]></description>
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		<slash:comments>0</slash:comments>
	
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			<media:title type="html">microprocessador1</media:title>
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			<media:title type="html">refrigeracio_liquida1</media:title>
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