Lund University, The Faculty of Engineering

The Faculty of Engineering at Lund University is among the leading engineering faculties in Europe, with more than 7000 undergraduates and 800 postgraduates.

Research Institute / Laboratory / School

LTH is one of few complete engineering faculties in Sweden. Besides the traditional engineering programmes we offer architecture, industrial design and fire safety engineering.

The research carried is of high international standard and is world-leading in several areas, such as nano-technology, combusting engineering and mobile communications, water resources, automatic control, laser physics and biotechnology.

Thanks to the fact that LTH belongs to a large university, cooperation between different disciplines is stimulated in a unique way. Consequently, LTH is recognized for its cross disciplinary research, e.g. between the medical and technical sciences.

LTH has close contact to business life. Ideon, Sweden’s first Research Park, is our neighbour. Moreover, international companies as Alfa Laval, Ericsson, Gambro and Tetra Pak are based in Lund.

Lund University, The Faculty of Engineering Postings

1 technical article »

Heat Management in Printed Circuit Boards

Dec 16, 2010 | Jakob Dieterle

This report discusses the significance of heat management in the design of printed circuit boards (PCB). After an introduction into the basics of PCBs the crucial mechanisms of heat transfer are discussed with regard to significance and typical design par...

Error Occurred While Processing Request The web site you are accessing has experienced an unexpected error.
Please contact the website administrator.


The following information is meant for the website developer for debugging purposes.
Error Occurred While Processing Request

Error Executing Database Query.

Could not create connection to database server. Attempted reconnect 3 times. Giving up.
 
The error occurred in /var/www/smtnet/adsystem/adsystem_mod.cfm: line 154
Called from /var/www/smtnet/adsystem/adsystem_mod.cfm: line 1
Called from /var/www/smtnet/dsp_global_layout.cfm: line 422
Called from /var/www/smtnet/dsp_global_layout.cfm: line 389
Called from /var/www/smtnet/dsp_global_layout.cfm: line 1
Called from /var/www/smtnet/company/dsp_layout.cfm: line 1
Called from /var/www/smtnet/company/index.cfm: line 260
Called from /var/www/smtnet/company/index.cfm: line 120
Called from /var/www/smtnet/company/index.cfm: line 11
Called from /var/www/smtnet/company/index.cfm: line 1
152 : 				</CFIF>
153 : 				<CFIF IsDefined('ATTRIBUTES.adid')>
154 : 					AND adid in (#ATTRIBUTES.adid#)
155 : 				</CFIF>
156 : 	</CFQUERY>

SQLSTATE   08001
DATASOURCE   admanager_mysql
SQL    SELECT start_date, adid, end_date, camp_views, image_name, alt_text, views, targeted FROM adsystem WHERE section = 'company_1' AND active = 1 AND adsize = 'Text' AND start_date <= Now()
Resources:

Browser   claudebot
Remote Address   3.94.99.173
Referrer  
Date/Time   29-Mar-24 08:17 AM
Stack Trace
at cfadsystem_mod2ecfm1546098271._factor16(/var/www/smtnet/adsystem/adsystem_mod.cfm:154) at cfadsystem_mod2ecfm1546098271.runPage(/var/www/smtnet/adsystem/adsystem_mod.cfm:1) at cfdsp_global_layout2ecfm1131192918._factor1(/var/www/smtnet/dsp_global_layout.cfm:422) at cfdsp_global_layout2ecfm1131192918._factor27(/var/www/smtnet/dsp_global_layout.cfm:389) at cfdsp_global_layout2ecfm1131192918.runPage(/var/www/smtnet/dsp_global_layout.cfm:1) at cfdsp_layout2ecfm507669117.runPage(/var/www/smtnet/company/dsp_layout.cfm:1) at cfindex2ecfm100786478._factor4(/var/www/smtnet/company/index.cfm:260) at cfindex2ecfm100786478._factor36(/var/www/smtnet/company/index.cfm:120) at cfindex2ecfm100786478._factor37(/var/www/smtnet/company/index.cfm:11) at cfindex2ecfm100786478.runPage(/var/www/smtnet/company/index.cfm:1)

com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Could not create connection to database server. Attempted reconnect 3 times. Giving up.
	at sun.reflect.GeneratedConstructorAccessor917.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:395)
	at com.mysql.jdbc.Util.getInstance(Util.java:370)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:999)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:904)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2369)
	at com.mysql.jdbc.ConnectionImpl.createNewIO(ConnectionImpl.java:2290)
	at com.mysql.jdbc.ConnectionImpl.<init>(ConnectionImpl.java:818)
	at com.mysql.jdbc.JDBC4Connection.<init>(JDBC4Connection.java:31)
	at sun.reflect.GeneratedConstructorAccessor85.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:395)
	at com.mysql.jdbc.ConnectionImpl.getInstance(ConnectionImpl.java:400)
	at com.mysql.jdbc.NonRegisteringDriver.$fr$connect(NonRegisteringDriver.java:346)
	at com.mysql.jdbc.NonRegisteringDriver.connect(NonRegisteringDriver.java)
	at coldfusion.server.j2ee.sql.pool.JDBCPool.createPhysicalConnection(JDBCPool.java:614)
	at coldfusion.server.j2ee.sql.pool.ConnectionRunner$RunnableConnection.run(ConnectionRunner.java:67)
	at java.lang.Thread.run(Thread.java:748)
Caused by: com.mysql.jdbc.exceptions.jdbc4.MySQLNonTransientConnectionException: Data source rejected establishment of connection,  message from server: "Too many connections"
	at sun.reflect.GeneratedConstructorAccessor917.newInstance(Unknown Source)
	at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
	at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
	at com.mysql.jdbc.Util.handleNewInstance(Util.java:395)
	at com.mysql.jdbc.Util.getInstance(Util.java:370)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:999)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:973)
	at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:959)
	at com.mysql.jdbc.MysqlIO.doHandshake(MysqlIO.java:1112)
	at com.mysql.jdbc.ConnectionImpl.coreConnect(ConnectionImpl.java:2467)
	at com.mysql.jdbc.ConnectionImpl.connectWithRetries(ConnectionImpl.java:2308)
	... 13 more