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Recent issues have covered topics such as high pressure technology, micro system technology, modelling, parameter estimation, corrosion, and emission and pollution control. • Stay current with the latest articles through Early View – updated almost daily. • Be notified when a new article on your favorite topic, or a new issue is available. • Download articles and issues for offline perusal. • Save your favorite articles for quick and easy access. • Access your personal or institutional subscription on your device.  CURRENT SUBSCRIBERS to Chemical Engineering & Technology can “pair” their device with their personal or institutional subscription to enjoy full access in this iPad edition.  Chemical Engineering & Technology subscriptions automatically renew within 24 hours of the end of your subscription period for $399. 99 (US) unless auto-renew is turned off at least 24 hours before the end of the subscription period.  Chemical Engineering & Technology is supported by Gesellschaft Deutscher Chemiker (GDCH), Gesellschaft für Chemische Technik und Biotechnologie e. V. (DECHEMA) and VDI-Gesellschaft Verfahrenstechnik und Chemieingenieurwesen (VDI).  Note that subscriptions cannot be cancelled during the term of the subscription, but you can still turn off auto-renew to prevent automatic renewal of your subscription.  This is the journal for chemical engineers looking for first-hand information in all areas of chemical and process engineering—and it is now available on your iPad and iPhone.  SUBSCRIBE IN THE APP: Annual Subscriptions (12 issues) for the iPad-only edition are available for $399. 99 (US) per year.  To turn off auto-renew, go to your iTunes account settings after purchase.  Topical because its articles treat the very latest developments in the field.  Payment is charged to your iTunes account after confirmation of purchase.  Competent with contributions written and refereed by outstanding professionals from around the world.  Essential because it is an international forum for the exchange of ideas and experiences.  The journal is published twelve times per year.  Note that any unused portion of a free trial period, if offered, will be forfeited when you purchases a subscription.