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In class-based programming, downcasting, or type refinement, is the act of casting a base or parent class reference, to a more restricted derived class reference. [1] This is only allowable if the object is already an instance of the derived class, and so this conversion is inherently fallible. In many environments, type introspection can be ...
A sough is a drainage tunnel to take water from coal mines without the need to pump it to the surface. [1] An example is the Great Haigh Sough. Spoil tip. Gin Pit Colliery 's old spoil tip or rucks. A spoil tip is a pile built of accumulated spoil - the overburden or other waste rock removed during coal and ore mining.
t. e. In the field of psychology, cognitive dissonance is described as the mental disturbance people feel when they realize their cognitions and actions are inconsistent or contradictory. This may ultimately result in some change in their cognitions or actions to cause greater alignment between them so as to reduce this dissonance. [1]
CTD stands for conductivity, temperature, and depth. A CTD instrument is an oceanography sonde (French for probe) used to measure the electrical conductivity, temperature, and pressure of seawater. The pressure is closely related to depth. Conductivity is used to determine salinity. The CTD may be incorporated into an array of Niskin bottles ...
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In computer programming, a code smell is any characteristic in the source code of a program that possibly indicates a deeper problem. [1][2] Determining what is and is not a code smell is subjective, and varies by language, developer, and development methodology. The term was popularized by Kent Beck on WardsWiki in the late 1990s. [3]
Flattery, also called adulation or blandishment, is the act of giving excessive compliments, generally for the purpose of ingratiating oneself with the subject. It is also used in pick-up lines when attempting to initiate sexual or romantic courtship. Historically, flattery has been used as a standard form of discourse when addressing a king or ...
Underground mine ventilation provides a flow of air to the underground workers of a mine with sufficient volume to dilute and remove dust and noxious gases (typically NO x, SO 2, methane, CO 2 and CO) and to regulate temperature. The source of these gases are equipment that runs on diesel engines, blasting with explosives, [1] and the orebody ...