Air is contained in a test tube (A) standing over a large quantity of weak alkali (B), and an electric spark is sent across wires (D) insulated by U-shaped glass tubes (C) passing through the liquid and around the mouth of the test tube. The spark oxidizes the nitrogen in the air...
Despite its name, mustard gas is technically a liquid and forms a mist of small droplets in the air when released. History British chemist Frederick Guthrie is generally recognized as the scientist responsible for the synthesis of mustard gas, in 1860. While synthesizing the compound, he ...
Natural gas with a relatively high proportion of liquefiable heavy hydrocarbons is described as ‘wet’ or ‘rich’, while gas with a low proportion of heavy hydrocarbons, or gas that has been processed to remove liquefiable heavy hydrocarbons, is described as ‘dry’ or ‘lean’. Natural gas...
A typical set-up of a domestic boiler fired with pellets is described in [27]. The pellets collected in a hopper are provided by means of a top-screw feeder to a basket at a rate regulated by the boiler load. An electrical resistance close to the basket aids the combustion process. ...
Connecting chemical properties to various wine characteristics is of great interest to the science of olfaction as well as the wine industry. We explored whether Bordeaux wine chemical identities and vintages (harvest year) can be inferred from a common and affordable chemical analysis, namely, a co...
This paper presents a physics-informed neural network (PINN) approach for monitoring the health of diesel engines. The aim is to evaluate the engine dynamics, identify unknown parameters in a “mean value” model, and anticipate maintenance requirements.
Unfortunately for drivers, we often see the highest gas prices during the summer, starting around Memorial Day. In May 2022, U.S. consumers paid an average of $1.50 per gallon more than they were at the same time in 2021, according to AAA.
The construction course of pipelines,and their operation and supervision modes in foreign countries were described. The construction,feasibility study,and the management of gas pipelines in China and foreign countries were compared. According to the problems and disparities after comparison , enlightenments...
General characteristics The prime mover of virtually all jet engines is a gasturbine. Variously called the core, gas producer, gasifier, or gas generator, the gas turbine converts the energy derived from the combustion of a liquid hydrocarbon fuel tomechanical energyin the form of a high-pressur...
Each constituent is described in more detail in the following subsections. 8.3.2 Carrier Gas The mobile phase in a gas chromatographic system is referred to as the carrier gas. The carrier gas is inert and does not interact with the analytes. This is different from most other chromatographic ...