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This week , as we celebrate the role of engineers in making the world a better place , Engineers Without Borders stands as a shining example of social responsibility , humanitarian outreach , and global good will . Federally mandated by the government after 9/11 , the purpose of a VA is to analyze a utility 's water system to determine its most vulnerable points to malicious attack . He is assisting in the development of a number of prototype solar electric systems , a passive solar tracker , and a process for producing low cost photovoltaic cells . Engineers Without Borders , like ASME , encourages volunteerism and accomplishes outstanding work with engineers serving as positive and supportive mentors to students . David Youmans , a mechanical engineer with Green Mountain Engineering in San Francisco , California , develops cutting edge clean technologies ranging from solid hydrogen storage to passive solar trackers . CYCLE The optional CYCLE keyword may be used to enable the sequence to continue when the maxvalue or minvalue has been reached by an ascending or descending sequence respectively . The optional arguments send_function and receive_function are used when the application program requesting Postgres services resides on a different machine . Thank you , Engineers Without Borders , for your outstanding accomplishments — and for raising the stature of the engineering profession . They aided British Army Engineers in restoring power to the critical port in Umm Qasr so humanitarian supplies could begin to flow into the country ; repaired the power plant at Baghdad International Airport and restored power there ; restored power to the Green Zone , including the Iraqi Forum ( now seat of the Interim Iraqi Government ) and the Palace of the Four Seasons ( initially the location of the Office of Reconstruction and Humanitarian Assistance , then headquarters of Paul Bremer ’ s Coalition Provisional Authority , now the US Embassy in Iraq ) ; and saved the gigantic Hadithah Hydroelectric Dam from being destroyed by sabotage . The optional INHERITS clause specifies a collection of class names from which this class automatically inherits all fields . The default distribution does not contain this optional file , so you will create it using a text editor of your choice .