The proximal end of the ulna articulates with the trochlea of the humerus. To enable movement at the elbow joint, the ulna has a specialised structure, with bony prominences for muscle attachment. Important landmarks of the proximal ulna are the olecranon, coronoid process, trochlear notch, radial notch and the tuberosity of ulna: 1  Olecranon â A large projection of bone that extends proximally, forming part of trochlear notch. 2  Coronoid process â This ridge of bone projects outwards anteriorly, forming part of the trochlear notch.
Metallurgical coke is produced by the destructive distillation of coal in coke ovens. Prepared. coal is heated in an oxygen-free atmosphere (âcokedâ) until most volatile components in the coal are. removed. The material remaining is a carbon mass called coke. Metallurgical coke is used in iron and steel industry processes (primarily in blast furnaces) to. reduce iron ore to iron. Over 90 percent of the total coke production is dedicated to blast furnace. operations.
The 3 types of fossil fuels that are used the most are coal, natural gas and oil. Coal is responsible for 43% of carbon dioxide emissions from fuel combustion, 36% is produced by oil and 20% from natural gas.Coal is the most carbon intensive fossil fuel.For every tonne of coal burned, approximately 2.5 tonnes of CO 2 e are produced.oal is responsible for 43% of carbon dioxide emissions from fuel combustion, 36% is produced by oil and 20% from natural gas. Coal is the most carbon intensive fossil fuel. For every tonne of coal burned, approximately 2.5 tonnes of CO 2 e are produced.