HOME TheInfoList.com
Providing Lists of Related Topics to Help You Find Great Stuff
[::MainTopicLength::#1500] [::ListTopicLength::#1000] [::ListLength::#15] [::ListAdRepeat::#3]

picture info

MPa
The PASCAL (symbol: Pa) is the SI derived unit
SI derived unit
of pressure used to quantify internal pressure , stress , Young\'s modulus and ultimate tensile strength . It is defined as one newton per square metre . It is named after the French polymath Blaise Pascal
Blaise Pascal
. Common multiple units of the pascal are the hectopascal (1 hPa = 100 Pa) which is equal to one millibar , and the kilopascal (1 kPa = 1000 Pa) which is equal to one centibar. The unit of measurement called standard atmosphere (atm) is defined as 101,325 Pa and approximates to the average pressure at sea-level at the latitude 45° N. Meteorological reports typically state atmospheric pressure in hectopascals
[...More...]

"MPa" on:
Wikipedia
Google
Yahoo

picture info

Geophysics
GEOPHYSICS /dʒiːoʊfɪzɪks/ is a subject of natural science concerned with the physical processes and physical properties of the Earth
Earth
and its surrounding space environment, and the use of quantitative methods for their analysis. The term geophysics sometimes refers only to the geological applications: Earth's shape ; its gravitational and magnetic fields ; its internal structure and composition ; its dynamics and their surface expression in plate tectonics , the generation of magmas , volcanism and rock formation. However, modern geophysics organizations use a broader definition that includes the water cycle including snow and ice; fluid dynamics of the oceans and the atmosphere ; electricity and magnetism in the ionosphere and magnetosphere and solar-terrestrial relations; and analogous problems associated with the Moon
Moon
and other planets
[...More...]

"Geophysics" on:
Wikipedia
Google
Yahoo

picture info

Earth
EARTH is the third planet from the Sun
Sun
and the only object in the Universe
Universe
known to harbor life . According to radiometric dating and other sources of evidence, Earth
Earth
formed over 4 billion years ago . Earth\'s gravity interacts with other objects in space, especially the Sun
Sun
and the Moon
Moon
, Earth's only natural satellite . Earth
Earth
revolves around the Sun
Sun
in 365.26 days, a period known as an Earth
Earth
year . During this time, Earth
Earth
rotates about its axis about 366.26 times. Earth's axis of rotation is tilted, producing seasonal variations on the planet's surface
[...More...]

"Earth" on:
Wikipedia
Google
Yahoo

picture info

Elastography
ELASTOGRAPHY is a medical imaging modality that maps the elastic properties and stiffness of soft tissue . The main idea is that whether the tissue is hard or soft will give diagnostic information about the presence or status of disease . For example, cancerous tumours will often be harder than the surrounding tissue, and diseased livers are stiffer than healthy ones. The most prominent techniques use ultrasound or magnetic resonance imaging (MRI) to make both the stiffness map and an anatomical image for comparison. Tactile imaging composed from acquired stress-strain data reveals elasticity and anatomical features
[...More...]

"Elastography" on:
Wikipedia
Google
Yahoo

picture info

Medical Ultrasonography
MEDICAL ULTRASOUND (also known as DIAGNOSTIC SONOGRAPHY or ULTRASONOGRAPHY) is a diagnostic imaging technique based on the application of ultrasound . It is used to see internal body structures such as tendons , muscles , joints, vessels and internal organs. Its aim is often to find a source of a disease or to exclude any pathology . The practice of examining pregnant women using ultrasound is called obstetric ultrasound , and is widely used. Ultrasound
Ultrasound
is sound waves with frequencies which are higher than those audible to humans (>20,000 Hz). Ultrasonic images also known as sonograms are made by sending pulses of ultrasound into tissue using a probe . The sound echoes off the tissue; with different tissues reflecting varying degrees of sound. These echoes are recorded and displayed as an image to the operator. Many different types of images can be formed using sonographic instruments
[...More...]

"Medical Ultrasonography" on:
Wikipedia
Google
Yahoo

US Customary System
A CONVENTION is a set of agreed, stipulated, or generally accepted standards, norms , social norms , or criteria, often taking the form of a custom . Certain types of rules or customs may become law and regulatory legislation may be introduced to formalize or enforce the convention (for example, laws that define on which side of the road vehicles must be driven). In a social context , a convention may retain the character of an "unwritten law" of custom (for example, the manner in which people greet each other, such as by shaking each other's hands). In physical sciences , numerical values (such as constants, quantities, or scales of measurement) are called conventional if they do not represent a measured property of nature, but originate in a convention, for example an average of many measurements, agreed between the scientists working with these values
[...More...]

"US Customary System" on:
Wikipedia
Google
Yahoo

picture info

Imperial Measurement System
The system of IMPERIAL UNITS or the IMPERIAL SYSTEM (also known as BRITISH IMPERIAL or EXCHEQUER STANDARDS of 1825) is the system of units first defined in the British Weights and Measures Act of 1824, which was later refined and reduced. The Imperial units
Imperial units
replaced the Winchester Standards, which were in effect from 1588 to 1825. The system came into official use across the British Empire
British Empire
. By the late 20th century, most nations of the former empire had officially adopted the metric system as their main system of measurement, although some imperial units are still used in the United Kingdom, Canada
Canada
and other countries formerly part of the British Empire. The imperial system developed from what were first known as English units
English units
, as did the related system of United States customary units
United States customary units

[...More...]

"Imperial Measurement System" on:
Wikipedia
Google
Yahoo

picture info

International Union Of Pure And Applied Chemistry
The INTERNATIONAL UNION OF PURE AND APPLIED CHEMISTRY (IUPAC) /ˈaɪjuːpæk/ or /ˈjuːpæk/ is an international federation of National Adhering Organizations that represents chemists in individual countries. It is a member of the International
International
Council for Science (ICSU). IUPAC is registered in Zürich
Zürich
, Switzerland
Switzerland
, and the administrative office, known as the "IUPAC Secretariat", is in Research Triangle Park , North Carolina
North Carolina
, United States
United States
. This administrative office is headed by IUPAC's executive director, currently Lynn Soby. IUPAC was established in 1919 as the successor of the International Congress of Applied Chemistry
Chemistry
for the advancement of chemistry
[...More...]

"International Union Of Pure And Applied Chemistry" on:
Wikipedia
Google
Yahoo

picture info

Pressure Gauge
Many techniques have been developed for the measurement of pressure and vacuum . Instruments used to measure and display pressure in an integral unit are called PRESSURE GAUGES or VACUUM GAUGES. A MANOMETER is a good example as it uses a column of liquid to both measure and indicate pressure. Likewise the widely used Bourdon gauge is a mechanical device which both measures and indicates, and is probably the best known type of gauge. A vacuum gauge is an absolute pressure gauge used to measure the pressures lower than the ambient atmospheric pressure. Other methods of pressure measurement involve sensors which can transmit the pressure reading to a remote indicator or control system (telemetry )
[...More...]

"Pressure Gauge" on:
Wikipedia
Google
Yahoo

CJK Compatibility
CJK COMPATIBILITY is a Unicode block containing square symbols (both CJK and Latin alphanumeric) encoded for compatibility with east Asian character sets
[...More...]

"CJK Compatibility" on:
Wikipedia
Google
Yahoo

Deprecate
In several fields, DEPRECATION is the discouragement of use of some terminology, feature, design, or practice; typically because it has been superseded or is no longer considered efficient or safe – but without completely removing it or prohibiting its use. CONTENTS * 1 Etymology * 2 Software deprecation * 3 Other usage * 4 See also * 5 References * 6 External links ETYMOLOGYIn general English usage, the infinitive "to deprecate" means "to express disapproval of (something)". It derives from the Latin
Latin
verb deprecare, meaning "to ward off (a disaster ) by prayer". In current technical usage, for one to state that a feature is deprecated is merely a recommendation against using it. It is still possible to produce a program or product without heeding the deprecation
[...More...]

"Deprecate" on:
Wikipedia
Google
Yahoo

picture info

Magnetic Resonance Imaging
MAGNETIC RESONANCE IMAGING (MRI) is a medical imaging technique used in radiology to form pictures of the anatomy and the physiological processes of the body in both health and disease. MRI scanners use strong magnetic fields , radio waves , and field gradients to generate images of the organs in the body. MRI does not involve x-rays , which distinguishes it from computed tomography (CT or CAT). While the hazards of x-rays are now well-controlled in most medical contexts, MRI still may be seen as superior to CT in this regard. MRI often may yield different diagnostic information compared with CT. There may be risks and discomfort associated with MRI scans. Compared with CT, MRI scans typically take greater time, are louder, and usually require that the subject go into a narrow, confined tube. In addition, people with some medical implants or other non-removable metal inside the body may be unable to undergo an MRI examination safely
[...More...]

"Magnetic Resonance Imaging" on:
Wikipedia
Google
Yahoo

picture info

Shear Modulus
In materials science , SHEAR MODULUS or MODULUS OF RIGIDITY, denoted by G, or sometimes S or μ, is defined as the ratio of shear stress to the shear strain : G = d e f x y x y = F / A x / l = F l A x {displaystyle G {stackrel {mathrm {def} }{=}} {frac {tau _{xy}}{gamma _{xy}}}={frac {F/A}{Delta x/l}}={frac {Fl}{ADelta x}}} where x y = F / A {displaystyle tau _{xy}=F/A,} = shear stress F {displaystyle F} is the force which acts A {displaystyle A} is the area on which the force acts x y {displaystyle gamma _{xy}} = shear strain
[...More...]

"Shear Modulus" on:
Wikipedia
Google
Yahoo

picture info

Energy Density
ENERGY DENSITY is the amount of energy stored in a given system or region of space per unit volume . Colloquially it may also be used for energy per unit mass , though the accurate term for this is specific energy . Often only the useful or extractable energy is measured, which is to say that inaccessible energy (such as rest mass energy) is ignored. In cosmological and other general relativistic contexts, however, the energy densities considered are those that correspond to the elements of the stress–energy tensor and therefore do include mass energy as well as energy densities associated with the pressures described in the next paragraph
[...More...]

"Energy Density" on:
Wikipedia
Google
Yahoo

picture info

Electric Potential Energy
ELECTRIC POTENTIAL ENERGY, or ELECTROSTATIC POTENTIAL ENERGY, is a potential energy (measured in joules ) that results from conservative Coulomb forces and is associated with the configuration of a particular set of point charges within a defined system . An object may have electric potential energy by virtue of two key elements: its own electric charge and its relative position to other electrically charged objects. The term "electric potential energy" is used to describe the potential energy in systems with time-variant electric fields , while the term "electrostatic potential energy" is used to describe the potential energy in systems with time-invariant electric fields
[...More...]

"Electric Potential Energy" on:
Wikipedia
Google
Yahoo

picture info

Gravitational Energy
GRAVITATIONAL ENERGY is the GRAVITATIONAL POTENTIAL ENERGY a body with mass has in relation to another massive object. It is potential energy associated with the gravitational field . Gravitational energy is dependent on the masses of two bodies, their distance apart and the gravitational constant (G). In cases where the acceleration is fairly constant, such as dropping a ball on Earth, the Newtonian formula – for the gravitational energy of one of the bodies relative to the other – can be reduced to: E = m g h {displaystyle E=mgh} where E {displaystyle E} is the gravitational energy (in Joules
Joules
), m {displaystyle m} is the mass of the object accelerating (in kilograms ), g {displaystyle g} is the acceleration of the object (in meters per second per second ) and h {displaystyle h} is the distance between the bodies (in meters )
[...More...]

"Gravitational Energy" on:
Wikipedia
Google
Yahoo
.