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Hypobaric Chamber
A hypobaric chamber, or altitude chamber, is a chamber used during aerospace or high terrestrial altitude research or training to simulate the effects of high altitude on the human body, especially hypoxia (low oxygen) and hypobaria (low ambient air pressure). Some chambers also control for temperature and relative humidity. Procedure One or more subjects (usually, pilots or crew members, though anyone interested in the effects of high altitude can usually arrange a visit) are placed in the chamber. Before "ascending" to the desired altitude, subjects breathe oxygen from oxygen masks to purge nitrogen from their bloodstream so decompression sickness (DCS) does not occur. With masks in place, the atmospheric pressure inside the chamber is then reduced to simulate altitudes of up to tens of thousands of feet. The subjects then remove their oxygen masks and experience the symptoms of hypoxia. An inside safety observer, breathing oxygen by mask, should always be present to pla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cambra Hipobàrica
In British legend, Cambra was the daughter of Belinus the Great, a legendary king of the Britons, and married to Antenor, the second King of the Cimmerians. The Cimmerians changed the name of their tribe to Sicambri in honor of Cambra. Cambra's son by Antenor, Priamus the Younger, succeeded his father when he was twenty-six. According to Johannes Trithemius, John Tritemicus, Cambra was so beautiful and wise that the Frankish monarchy obeyed her as if she was an Oracle, and she converted the people to civility from barbarianism. The Saxons, who apparently identified Cambra with the same status as that of a King or priest, developed the proverb ''Sy Camber'', used to refer to any man who spoke as wisely as Cambra. According to John Lewis's history of Great Britain, Cambra taught Noblemen to build cities and castles; she taught women how to dress properly and to use modest countenance, how to sow flax and hemp, and to convert it into cloth; she gave laws and upright judgement to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Of The United States
The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. The president of the United States is the commander-in-chief of the armed forces and forms military policy with the Department of Defense (DoD) and Department of Homeland Security (DHS), both federal executive departments, acting as the principal organs by which military policy is carried out. All six armed services are among the eight uniformed services of the United States. From their inception during the American Revolutionary War, the U.S. Armed Forces have played a decisive role in the history of the United States. They helped forge a sense of national unity and identity through victories in the First Barbary War and the Second Barbary War. They played a critical role in the American Civil War, keeping the Confederacy from seceding from the republic and preserving the unio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cleveland
Cleveland ( ), officially the City of Cleveland, is a city in the U.S. state of Ohio and the county seat of Cuyahoga County. Located in the northeastern part of the state, it is situated along the southern shore of Lake Erie, across the U.S. maritime border with Canada, northeast of Cincinnati, northeast of Columbus, and approximately west of Pennsylvania. The largest city on Lake Erie and one of the major cities of the Great Lakes region, Cleveland ranks as the 54th-largest city in the U.S. with a 2020 population of 372,624. The city anchors both the Greater Cleveland metropolitan statistical area (MSA) and the larger Cleveland–Akron–Canton combined statistical area (CSA). The CSA is the most populous in Ohio and the 17th largest in the country, with a population of 3.63 million in 2020, while the MSA ranks as 34th largest at 2.09 million. Cleveland was founded in 1796 near the mouth of the Cuyahoga River by General Moses Cleaveland, after whom the city was named ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Hospitals Cleveland Medical Center
University Hospitals Cleveland Medical Center (UH Cleveland Medical Center) is a large not-for-profit academic medical complex in Cleveland, Ohio, United States. University Hospitals Cleveland Medical Center is the main affiliate hospital of Case Western Reserve University. UH Cleveland Medical Center is the main campus of the University Hospitals Health System. With 150 locations throughout the Cleveland metropolitan area, the University Hospitals Health System encompasses hospitals, outpatient centers, and primary care physicians. UH Cleveland Medical Center is home to world-class clinical and research centers, including cancer care, pediatrics, women's health, orthopedics, spine, radiology, radiation oncology, neurosurgery, neuroscience, psychiatry, cardiology, cardiovascular surgery, organ transplantation, and human genetics. Locations The main campus of the University Hospitals system is centered on the UH Cleveland Medical Center and is located in the University Circle n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RAF Centre Of Aviation Medicine
The RAF Centre of Aviation Medicine (RAF CAM) is a medical organisation run by the Royal Air Force and based at RAF Henlow in Bedfordshire. It is the main organisation conducting aviation medicine research in the UK. History Formation The centre was formed on 1 December 1998 as a result of the merger of the School of Aviation Medicine based at Farnborough in Hampshire and the Aviation Medicine Training Centre based at RAF North Luffenham in Rutland. The centre's predecessor was the RAF Institute of Aviation Medicine (RAF IAM), which closed in 1994. Expansion The RAF Medical Board and RAF Institute of Health moved from RAF Halton in Buckinghamshire to the centre on 1 June 2000, becoming the Occupation and Environmental Medicine Wing. It was formerly part of RAF Personnel and Training Command, becoming part of RAF Air Command in 2007. In April 2022, the centre retired its two BAE Systems Hawk T1 which were based at MOD Boscombe Down in Wiltshire. The aircraft were used for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John D
John is a common English name and surname: * John (given name) * John (surname) John may also refer to: New Testament Works * Gospel of John, a title often shortened to John * First Epistle of John, often shortened to 1 John * Second Epistle of John, often shortened to 2 John * Third Epistle of John, often shortened to 3 John People * John the Baptist (died c. AD 30), regarded as a prophet and the forerunner of Jesus Christ * John the Apostle (lived c. AD 30), one of the twelve apostles of Jesus * John the Evangelist, assigned author of the Fourth Gospel, once identified with the Apostle * John of Patmos, also known as John the Divine or John the Revelator, the author of the Book of Revelation, once identified with the Apostle * John the Presbyter, a figure either identified with or distinguished from the Apostle, the Evangelist and John of Patmos Other people with the given name Religious figures * John, father of Andrew the Apostle and Saint Peter * Pope Jo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of North Dakota
The University of North Dakota (also known as UND or North Dakota) is a public research university in Grand Forks, North Dakota. It was established by the Dakota Territorial Assembly in 1883, six years before the establishment of the state of North Dakota. The university has the only schools olawanmedicinein the state of North Dakota. The John D. Odegard School of Aerospace Sciences was the first in the country to offer a degree iunmanned aircraft systems operation Several national research institutions are on the university's campus including the Energy and Environmental Research Center, the School of Medicine and Health Sciences, and the USDA Human Nutrition Research Center. It is classified among "R2: Doctoral Universities – High research activity". The National Science Foundation ranks UND #151 in the nation. History Founding UND was founded in 1883, six years before North Dakota became a state. UND was founded with a liberal arts foundation and expanded to include s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sheppard Air Force Base
Sheppard Air Force Base is a United States Air Force (USAF) base located north of the central business district of Wichita Falls, Texas, Wichita Falls, in Wichita County, Texas, United States. It is the largest training base and most diversified in Air Education and Training Command. The base is named in honor of Texas Senator John Morris Sheppard, a supporter of military preparations before World War II. The host unit at Sheppard is the 82d Training Wing (82 TRW), which provides specialized technical training and field training for officers, airmen and civilians of all branches of the United States Armed Forces, U.S. military, other United States Department of Defense, Department of Defense agencies and foreign nationals. The 80th Flying Training Wing (80 FTW), also at Sheppard, conducts the Euro-NATO Joint Jet Pilot Training (ENJJPT) program, a multi-nationally manned and managed flying training program chartered to produce combat pilots for both USAF and NATO. This inter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natick, Massachusetts
Natick ( ) is a town in Middlesex County, Massachusetts, United States. It is near the center of the MetroWest region of Massachusetts, with a population of 37,006 at the 2020 census. west of Boston, Natick is part of the Greater Boston area. Massachusetts's center of population was in Natick at the censuses of 2000-2020, most recently in the vicinity of Hunters Lane. Name The name ''Natick'' comes from the language of the Massachusett Native American tribe and is commonly thought to mean "Place of Hills." A more accurate translation may be "place of ursearching," after John Eliot's successful search for a location for his Praying Indian settlement. History Natick was settled in 1651 by John Eliot, a Puritan missionary born in Widford, England, who received a commission and funds from England's Long Parliament to settle the Massachusett Indians called Praying Indians on both sides of the Charles River, on land deeded from the settlement at Dedham. Natick was the first of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Research Institute Of Environmental Medicine
The U.S. Army Research Institute of Environmental Medicine (USARIEM) is the U.S Army’s main institution and facility for military environmental medicine and exercise physiology research. It is located at Natick, Massachusetts, within the U.S. Army Soldier Systems Center (SSC) installation, but is a subordinate lab of the U.S. Army Medical Research and Materiel Command (USAMRMC), headquartered at Fort Detrick, Maryland, USA. Mission USARIEM’s ''Mission Statement'' mandates that the Institute: The Institute has four divisions, each relating to military human performance as it relates to the environment — Biophysical and Biomedical Modeling, Military Nutrition, Military Performance, and Thermal and Mountain Medicine. Research in the divisions focuses on three elements: the ''servicemember'' (acclimation; body size; gender; race; age; health; hydration; nutrition; fitness; and sleep status), the ''environment'' (temperature; wind; humidity; and altitude), and the ''mis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boyle's Law
Boyle's law, also referred to as the Boyle–Mariotte law, or Mariotte's law (especially in France), is an experimental gas law that describes the relationship between pressure and volume of a confined gas. Boyle's law has been stated as: The absolute pressure exerted by a given mass of an ideal gas is inversely proportional to the volume it occupies if the temperature and amount of gas remain unchanged within a closed system.Levine, Ira. N. (1978), p. 12 gives the original definition. Mathematically, Boyle's law can be stated as: or where is the pressure of the gas, is the volume of the gas, and is a constant. Boyle's Law states that when the temperature of a given mass of confined gas is constant, the product of its pressure and volume is also constant. When comparing the same substance under two different sets of conditions, the law can be expressed as: :P_1 V_1 = P_2 V_2. showing that as volume increases, the pressure of a gas decreases proportionally, and vic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valsalva Maneuver
The Valsalva maneuver is performed by a forceful attempt of exhalation against a closed airway, usually done by closing one's mouth and pinching one's nose shut while expelling air out as if blowing up a balloon. Variations of the maneuver can be used either in medical examination as a test of cardiac function and autonomic nervous control of the heart, or to clear the ears and sinuses (that is, to equalize pressure between them) when ambient pressure changes, as in scuba diving, hyperbaric oxygen therapy, or air travel. A modified version is done by expiring against a closed glottis. This will elicit the cardiovascular responses described below but will not force air into the Eustachian tubes. History The technique is named after Antonio Maria Valsalva, a 17th-century physician and anatomist from Bologna whose principal scientific interest was the human ear. He described the Eustachian tube and the maneuver to test its patency (openness). He also described the use of this ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
