a valve closes with the pressure
121Glossary of nautical terms — This is a glossary of nautical terms; some remain current, many date from the 17th 19th century. See also Wiktionary s nautical terms, Category:Nautical terms, and Nautical metaphors in English. Contents: A B C D E F G H I J K L M N O P Q R …
122reproductive system, animal — Introduction any of the organ systems by which animals reproduce. The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …
123prosthesis — prosthetic /pros thet ik/, adj. prosthetically, adv. /pros thee sis/ for 1; /pros theuh sis/ for 2, n., pl. prostheses / seez/ for 1; / seez / for 2. 1. a device, either external or implanted, that substitutes for or supplements a missing or… …
124October 2007 — is the tenth month of that year. It began on a Monday and 31 days later, ended on a Wednesday. International holidays October 2 – Gandhi Jayanti (India) October 3 – Last third of Ramadan which includes Laylat al Qadr (Islamic) October 3 – end of… …
125Pulmonary circulation — is the portion of the cardiovascular system which carries oxygen depleted blood away from the heart, to the lungs, and returns oxygenated blood back to the heart. The term is contrasted with systemic circulation.CourseIn the pulmonary circulation …
126Damper (architecture) — A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air handler, or other air handling equipment. A damper may be used to cut off central air conditioning (heating or cooling) to an unused room,… …
127Damper (flow) — This article is about the architectural element. For other uers, see Damper (disambiguation). Opposed blade dampers in a mixing duct. A damper is a valve or plate that stops or regulates the flow of air inside a duct, chimney, VAV box, air… …
128Negative feedback — Most endocrine hormones are controlled by a physiologic negative feedback inhibition loop, such as the glucocorticoids secreted by the adrenal cortex. The hypothalamus secretes corticotropin releasing hormone (CRH), which directs the anterior… …
