Marijuana withdrawal can be more intense than people sometimes realize. While heavy, chronic users may begin to exhibit signs of depression, many users experience insomnia, anxiousness, and irritability.
A New Era. Although diesel locomotives first came to American railroads in the 1920s, their use was confined to switch engines, and later to passenger train locomotives. It wasn't until 1940 that the Electro Motive Division of General Motors (EMD) demonstrated that diesels could practically replace steam locomotives in heavy-duty service.
The diesel engine is high compression, self-ignition engine. Fuel is ignited by the heat of high compression and no spark plug is used. The Indian Standard governing the properties of diesel fuels is IS 1460:2005 (5th Rev). Important characteristics are ignition characteristics, handling at low temperature, flash point.