Having personally witnessed the destruction at the World Trade Center on 11 September 2001, this paper presents my personal feelings and observations as an observer of both disaster and terror. Aside from the unimaginable horror as a result of the carnage, a feeling of helplessness was particularly prominent due to the inability to be able to care for casualties since most victims were fataliti...

The tragic events of 9/11 and the concerns about the potential for a terrorist or hostile state attack with weapons of mass destruction have led to an increased emphasis on risk analysis for homeland security. Uncertain hazards (natural and engineering) have been successfully analyzed using probabilistic risk analysis (PRA). Unlike uncertain hazards, terrorists and hostile states are intelligen...

The paper presents the design of bridge blasting demolition scheme. methods has become preferred method for not only in war period but also where service life is exceeded. Compared with other method, evince more advantages as higher demolishing progress, lower cost and easier construction safety control. scheme contents position, parameters protections.

BACKGROUND In recent years the generation rate of construction and demolition waste (C&D) has significantly augmented. The aim of this study was to assessed the quality and quantity of construction and demolition waste in Tehran (capital of Iran). METHODS Questionnaire methods were used for estimating the amount of generated C&D wastes national statistical data and typical waste generation da...

in this paper, a location allocation (la) problem in construction and demolition (c&d;) waste management (wm) is studied. a bi-level model for this problem under a fuzzy random environment is presented where the upper level is the governments who sets up the processing centers, and the lower level are the administrators of different construction projects who control c&d; waste and the after tre...

NATO’s strategic transformation will have an important impact on the Alliance’s approach to the Mediterranean and on the future of its Mediterranean Initiative. During the Cold War, NATO’s strategy, doctrine, and military capabilities were oriented toward deterring a military threat from the Soviet Union. Today, the threats and challenges are more diverse—and more indirect. They range from ethn...