Malvern Process Systems, the on-line particle sizing division of Malvern Instruments, has expanded its sales team in the U.S. with the appointments of Richard Ferraro as sales manager and Lionel Rouzic as project engineer. Ferraro will coordinate and support the company's commercial activities in the Americas. He holds a bachelor's of science degree in chemical engineering and has extensive experience in the dry powder processing industry. Rouzic will support instrument installation and commissioning, assist in project definition, and carry out instrument performance audit functions. He holds a bachelor's of science degree in chemical engineering and a master's degree in environmental science. He has experience in service, support and product management in process instrumentation.