While experimenting, Pascal invented the syringe and created the hydraulic press, an instrument based upon the principle that became known as Pascal's principle: pressure applied to a confined liquid is transmitted undiminished through the liquid in all directions regardless of the area to which the pressure is applied.
Many scholars have studied the principles of pressure relief during mining, changes in permeability of coal seams, and the scope of the pressure-relief area (Sun et al. 1996; Xu and Qian 2000; Tu et al. 2004; Esterhuizen and Karacan 2005; Whittlesa et al. 2006; Zhou and Jiao 2006; Sang et al. 2010).
The structural arraignment and technical principles of pressure relief via surface drilling are discussed.
To illustrate these principles, capacitive pressure sensor arrays have been designed, fabricated, and characterized.
Basic principles of Pressure Swing Adsorption (PSA) separation processes are described.
The design and operation principles of pressure and shape monitoring systems are presented for gas filling, gas displacement by water, and water displacement by scintillator.
Design for boiling and condensation on one side is also described, and an outline of approach for reactor design is given, together with a summary of principles of pressure containment.
A laboratory-scale gas sampling and impurity enrichment device (GSIED) based on the principles of pressure swing adsorption (PSA) has been designed, fabricated, and tested to show that such a device provides an effective method to enrich trace impurity species in hydrogen by a factor of 10 or more.
Every prediction method is based on the same principles: low pressure brings rain, and major weather systems move from west to east.
"Under conflicting principles and pressures," Mr. Feinberg approved multimillion-dollar packages for many executives, the audit said.
