Tag: screening

Screening, in medicine, is a strategy used in a population to identify an unrecognized disease in individuals without signs or symptoms. This can include individuals with pre-symptomatic or unrecognized symptomatic disease.

Benefits of Training Operators With Simulators

Benefits of Training Operators With Simulators

Engineers don’t usually have the opportunity to actually operate the earthmoving equipment being used to turn their designs into reality. But any engineer with field experience can’t help but respect the operators of these machines. These are complicated, sophisticated pieces of equipment that make high demands on the skill and

The Physics of CHP Cogeneration and Heat Engine Efficiency

The Physics of CHP Cogeneration and Heat Engine Efficiency

How does CHP work? To understand CHP you have to begin with the Carnot cycle, and how it describes the function and efficacy of any heat engine. The thermodynamic Carnot cycle (proposed by Nicolas Carnot in 1824) is a four-stage process that describes the reciprocal operations of a heat engine

The Evolution of the Transfer Station

The Evolution of the Transfer Station

Transfer stations initially became the answer to the problem of moving urban trash to rural landfill locations, efficiently and cost effectively. But changing attitudes of the public and government regulations are causing transfer stations to become so much more. During the Great Recession, municipal solid waste (MSW) generation rates actually

Modern Millstones—Material Reduction

Modern Millstones—Material Reduction

Waste is inevitable in any construction or development project. Whether it’s clearing and grubbing, new construction and building, improvements to infrastructure, or demolition, waste is the deliberate or indirect result of these operations. Clearing and grubbing operations produce large quantities of a homogenous waste (a.k.a. green waste).

The Elements of Waste Transfer Operations

The Elements of Waste Transfer Operations

Transfer trailers exist because of transfer stations. Transfer trailer trucks financially justify the building and operating of transfer stations, since their larger capacities achieve the necessary economies of scale that minimize the overall costs of over land bulk transport. Common sense and accounting show that it is less expensive to

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