Ecological aspects of coal combustion utilization of CO2 from flue gas Slovakia belongs to the group of twenty worst polluters throughout the world, releasing 10 12 tons of carbon dioxide per capita, whereas the worldwide average value is about 5 tons. It is known that the big electric and thermal power stations produce only 25 % of the overall production of carbon dioxide in Slovakia, whereas ...

OBJECTIVES Compare the use of carbon dioxide contrast medium with iodine contrast medium for the endovascular treatment of ilio-femoral occlusive disease in patients without contraindications to iodine. MATERIALS AND METHODS From August 2012 to August 2014, 21 consecutive patients with ilio-femoral occlusive disease who were eligible for endovascular treatment and lacked contraindications to ...

BACKGROUND Carbon dioxide concentration under ophthalmic drapes increases during eye surgery under local anaesthesia. A new prototype has been designed which combines continuous suction of carbon dioxide enriched air and continuous oxygen insufflation under ophthalmic drapes to prevent carbon dioxide accumulation in spontaneously breathing patients undergoing cataract surgery. METHODS In a pr...

Carbon dioxide capture process has been simulated and studied under different process conditions. It has been shown that several process parameters such as lean amine temperature, number of adsorber stages, number of stripper stages and stripper pressure affect different process conditions and outputs such as carbon dioxide removal and reboiler duty. It may be concluded that the simulation of c...

Carbon dioxide capture from ambient air could compensate for all carbon dioxide emissions to the atmosphere. Such capture would, for example, make it possible to use liquid, carbon-based fuels in cars or airplanes without negatively impacting the climate. We present a specific approach based on a solid sorbent in the form of an anionic exchange resin, that absorbs carbon dioxide when dry and re...

Labeled sulfur dioxide was found to be extensively absorbed by spinach (Spinacea oleracea L.) leaves. Labeled sulfides detected in leaf blades following fumigations with sulfur dioxide in light indicated that photoreduction of sulfur dioxide had occurred. Measurable proportions of this labeled sulfur was localized within the chloroplast fraction. Suspensions of isolated chloroplasts supplied wi...

Quinoxaline 1,4-dioxide (4) is the historical prototype for modern heterocyclic N-oxide antitumor agents such as 3-amino-1,2,4-benzotriazine 1,4-dioxide (tirapazamine, 1) and 3-amino-2-quinoxalinecarbonitrile 1,4-dioxide (11). Early experiments in bacterial cell lines suggested that enzymatic, single-electron reduction of quinoxaline 1,4-dioxides under low-oxygen (hypoxic) conditions leads to D...

OBJECTIVE To explore the correlation and concordance between end-tidal carbon dioxide and arterial carbon dioxide partial pressure, and confirm the experience of the general consensus among service environments. DESIGN A prospective cross-sectional analysis. SETTING Two respiratory service units in Hong Kong. PARTICIPANTS Two hundred respiratory patients were recruited, in whom 219 sets o...

the simultaneous cross-linking and antimicrobial finishing of bleached cotton and cationized cotton by 3-chloro2-hydroxypropyl trimethyl ammonium chloride (quat-188) with butane tetracarboxylic acid and nano titanium dioxide is studied and explored in the current study. butane tetracarboxylic acid (btca) as a cross-linking agent can be linked to the cotton cellulosic chains by covalent bonds an...