Gas injection into carbonate formations is one of the most important activities to protect oil reserves that can guarantee a steady production. On-time injection of enough gas can result in the recovery of billions barrels of oil. In addition, it can preserve a huge amount of gas for the next generations. If the reservoir depth is shallow, or the reservoir fluid has a little amount of intermedi...

In this work, the time development of plasmas produced by interaction laser pulses, with a nitrogen gas, was investigated. The took place inside small portion dense gas injected temporarily into chamber filled under low pressure. High-temperature directly pulse were source soft x rays and charged particles, ionizing exciting surrounding gas. way, low-temperature produced. formation high-tempera...

This Report describes biomolecular structural studies using the injected-ion mobility/MS approach. Several examples will illustrate how these methods can be used to resolve and characterize conformations, examine the dynamics of protein unfolding and folding in the gas phase, and complement MS methods for characterizing oligosaccharide isomers. [The development and application of these methods ...

A very simple, rapid and sensitive dispersive liquid-liquid microextraction (DLLME) followed by gas chromatography and flame ionization detection (GC-FID) was developed for the determination of phenol and carvacrol in honey samples. A mixture of 100 µl dichloromethane (extraction solvent) and 0.5 ml acetonitrile (disperser solvent) was rapidly injected into sample solution. Thereby a cloudy sol...

One significant factor in the operation of a fluidized bed combustor is the manner in which coal particles disperse and mix with the bed material upon entering the bed. A thermal tracing technique was used to study the mixing characteristics in a 1/4 scale model of a pressurized bubbling fluidized bed combustor. Particles cooled by liquid nitrogen are injected into the bed in the same way that ...

Nitrogen and oxygen gases were injected into mouse subcutaneous chambers which contained virulent Treponema pallidum. The effect of each gas on the viability and survival of T. pallidum in an in vivo system was determined. In comparison with the effects in nontreated control mice, injection of nitrogen enhanced both motility and survival time, but oxygen exerted a deleterious effect.

A new concept for liquid manipulation has been developed and implemented in surface-micromachined fluid channels. It is based on the surface tension directed injection of a gas into the liquid flow through micrometer-sized holes in the microchannel wall. The injected gas is directed to an exhaust by a cross-sectional asymmetry of the microchannel and thereby moves minute liquid volumes. Success...

A lot of oil and gas reservoirs have been or will be abandoned in petroleum industry. In this study, we pointed out that these oil and gas reservoirs might be transferred into exceptional enhanced geothermal reservoirs with very high temperatures by oxidizing the residual oil with injected air. A concept to generate power from these exceptional enhanced geothermal reservoirs by using geothermal...

A 52-year-old man developed severe vision loss in the right eye due to a large retinal detachment. Vitrectomy was performed in that eye, with 15% C3F8 perfluoropropane gas injected into the posterior chamber.1 He transiently regained hand-motion acuity. Posterior chamber paracentesis was performed for elevated intraocular pressure; endophthalmitis was treated with intraocular antibiotics. After...

Background: The current study aimed at investigating the effect of using entonox gas during sedation and analgesia induction in pediatric candidates of bone marrow aspiration. Methods: It was a single-blind, randomized clinical trial. All pediatric candidates of 1st time bone marrow aspiration were included and allocated to either group 1 or 2, using a random number table. In group 1, a combina...