CEP: September 2009 Many of my fondest memories are of vacations enjoying America's natural wonders. I'm partial to some of the national parks out west - Yellowstone, Grand Canyon, Arches, Bryce, Zion. I could sit for hours next to an ocean, a waterfall or a babbling brook... Share Choose the Right Gas Sensor September2009InstrumentationSandra BarnesSelecting a sensor for continuous monitoring involves many considerations. This article discusses the types of sensors available, their applicability and limitations, and how to choose an appropriate sensor to protect people and equipment. Whatever Happened to the Class of 2009? September2009News FeatureGordon EllisRegardless of their current employment status and personal outlook, the new class of chemical engineering graduates is con?dent that they possess a unique versatility and capacity to make good and do good. What Does It Mean To Be Green? September2009OpinionPhillip E. Savage, P.E. Sustainability encompasses green chemistry and green engineering, among other concepts. This article explores some of the principles of sustainability and provides a framework for developing a lifecycle approach to chemical engineering. A Pre-Flight Check for a Smooth Landing September2009Career CatalystLisa L. Walker Handle Bulk Solids Safely and Effectively September2009Fluids and Solids HandlingEric Maynard, Greg Mehos and Eric MaynardFollow these guidelines for proper design of bins, hoppers, and feeders to avoid operational and safety problems. Choosing Trays and Packings for Distillation September2009Back To BasicsBruce S. Holden , Mark PillingTower-related problems can be difficult, time-consuming, and expensive to diagnose and fix. Here’s how to avoid difficulties and improve operating efficiency. Copyright Permissions: Would you like to reuse content from CEP Magazine? It’s easy to request permission to reuse content. Simply click here to connect instantly to licensing services, where you can choose from a list of options regarding how you would like to reuse the desired content and complete the transaction.