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Case-hardening or carburization is the process of introducing carbon to the surface of a low-carbon iron, or more commonly a low-carbon steel object, in order to harden the surface. Iron which has a carbon content greater than ~0.02% is known as steel .
Food safety (or food hygiene) is used as a scientific method/discipline describing handling, preparation, and storage of food in ways that prevent foodborne illness. The occurrence of two or more cases of a similar illness resulting from the ingestion of a common food is known as a food-borne disease outbreak. [ 1 ]
Individual Aid Kit. The U.S. Army Combat Lifesaver Course is an official medical training course conducted by the United States Army.The course is intended to provide an intermediate step between the buddy aid-style basic life support taught to every soldier and the advanced life support skills that are taught to US Army Combat medics and to US Army Special Forces medical sergeants [citation ...
The case depth can be specified in two ways: total case depth or effective case depth. The total case depth is the true depth of the case. For most alloys, the effective case depth is the depth of the case that has a hardness equivalent of HRC50; however, some alloys specify a different hardness (40-60 HRC) at effective case depth; this is ...
As described above, many jurisdictions have different levels of paramedic training, leading to variations in what procedures different paramedics may perform depending upon their qualifications. Three common general divisions of paramedic training are the basic technician, general paramedic or advanced technician, and advanced paramedic.
Certified flight paramedic emblem. A certified flight paramedic (FP-C) is a person who has met the advanced certification requirements for flight paramedics established for this designation by the International Board of Specialty Certification (IBSC), [1] a not-for-profit organization responsible for the administration and development of specialty certification exams for critical care ...
Tempering is usually performed after hardening, to reduce some of the excess hardness, and is done by heating the metal to some temperature below the critical point for a certain period of time, then allowing it to cool in still air. The exact temperature determines the amount of hardness removed, and depends on both the specific composition of ...
The strain hardening exponent (also called the strain hardening index), usually denoted , is a measured parameter that quantifies the ability of a material to become stronger due to strain hardening. Strain hardening (work hardening) is the process by which a material's load-bearing capacity increases during plastic (permanent) strain , or ...