It is made up of multiple components which include;  Fresh gas outlet This connects the breathing system to the anaesthetic machine  Breathing tubes These allow gas to travel to and from the patient  Reservoir bag This allows for visualisation of respiration, accumulation of oxygen and anaesthetic gases and provide a method of ventilation.  Adjustable pressure limiting (APL) valve Allows fo...

We review recent developments in the physics of ultracold atomic and molecular gases in optical lattices. Such systems are nearly perfect realisations of various kinds of Hubbard models, and as such may very well serve to mimic condensed matter phenomena. We show how these systems may be employed as quantum simulators to answer some challenging open questions of condensed matter, and even high ...

A polypropylene hollow fiber membrane module is used for separating dissolved gases which contain dissolved oxygen from water. These dissolved gases can be used for underwater breathing. To be used for a human, the minimum amount of oxygen is essential. To increase separation of dissolved gases, much water and high surface area of hollow fibers are requested. For efficient separation system, pe...

This chapter describes modeling and animating procedural gases, liquids, and textures. Volume density functions are being used extensively in computer graphics for modeling and animating gases, fire, fur, liquids, and other ‘‘soft’’ objects. I have used them extensively for modeling and animating gases such as steam and fog [2, 5, 4, 3]. Hypertextures [16], metaballs [20](also called implicit s...

Background: Hazardous chemical agents in the welding operation are a mixture of metal fumes and toxic gases, the inhalation of which causes adverse health effects among welders. The emission of gases in the workplace is a logical cause for concern regarding the potential development of respiratory disease. The aim of the present study was to determine the concentration values of gases discharge...

Reactive sputtering when two reactive gases are used presents special problems. Both reactive gases affect the plasma conditions, which means that both affect common feedback control signals such as the cathode voltage and optical emission signals. Two reactive gases require that unique signals for each reactive gas be acquired and that control of each of the reactive gases is done separately. ...

Biotrickling filters (BTFs) are becoming very potential means to purify waste gases containing multiple VOC components, but the removal of the waste gases by BTF has been a major challenge due to the extremely complicated interactions among the components. Four biotrickling filters packed with polyurethane foam were employed to identify the interactions among four aromatic compounds (benzene, t...