Summary: In engineering, the transition from idea to product requires that the engineer produce clear proposals demonstrating the idea's practicality and economic feasibility. Smelser describes how writing is a key element in this process. Engineers don't need to know how to write.
Cradle to gate Cradle to gate is a boundary condition associated with embodied carbon, carbon footprint and LCA studies. A study to these boundaries considers all activities starting with the extraction of materials from the earth (the cradle), their transportation, refining, processing and fabrication activities until the material or product is ready to leave the factory gate.
When barriers are selected and installed properly, they can represent not only a physical impediment but also a psychological deterrent to an attacker. Manmade structural barriers and natural barriers are two general types of barriers. Often, both types are used to secure Forest Service facilities.Other types of barriers (human barriers, such as guards; animal barriers, such as dogs) are beyond the scope of this Web site.hen barriers are selected and installed properly, they can represent not only a physical impediment but also a psychological deterrent to an attacker. Manmade structural barriers and natural barriers are two general types of barriers. Often, both types are used to secure Forest Service facilities.