Search results
Results From The WOW.Com Content Network
The diagram shows a typical reflux apparatus. It includes a water bath to indirectly heat the mixture. As many solvents used are flammable, direct heating with a Bunsen burner is not generally suitable, and alternatives such as a water bath, oil bath, sand bath, electric hot plate or heating mantle are employed. [6]
Synthesis of 1-methyltriazolobenzodiazepines (alprazolam type) is possible by heating 1,4-benzodiazepin-2-thiones with hydrazine and acetic acid in n-butanol under reflux. [ 1 ] References
Heartburn, also known as pyrosis, cardialgia or acid indigestion, [2] is a burning sensation in the central chest or upper central abdomen. [3] [4] [5] Heartburn is usually due to regurgitation of gastric acid (gastric reflux) into the esophagus.
Esophagitis is an inflammation of the esophagus, most commonly caused by gastroesophageal reflux disease . [6] It is defined by the sensation of "heartburn" or a burning sensation in the chest as a result of inappropriate relaxation of the lower esophageal sphincter at the site where the esophagus connects to the stomach. It is often treated ...
Gastroesophageal reflux disease (GERD) or gastro-oesophageal reflux disease (GORD) is a chronic upper gastrointestinal disease in which stomach content persistently and regularly flows up into the esophagus, resulting in symptoms and/or complications.
The inventors later incorporated under the name Zesto-Therm Inc. and patented the meal heating product (now called the ZT Energy Pad), and began selling it for civilian use. [ 1 ] : 2-4 In 1986 the U.S. Army evaluated the ZT Energy Pad and found that it did not always heat the food adequately and left a messy residue on the outside of the food ...
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
Hypocaust under the floor in a Roman villa in Vieux-la-Romaine, near Caen, France. A hypocaust (Latin: hypocaustum) is a system of central heating in a building that produces and circulates hot air below the floor of a room, and may also warm the walls with a series of pipes through which the hot air passes.