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In mathematics , a Ringschluss ( German : Beweis durch Ringschluss , lit. 'Proof by ring-inference') is a mathematical proof technique where the equivalence of several statements can be proven without having to prove all pairwise equivalences directly. In English it is also sometimes called a cycle of implications , [ ... | https://en.wikipedia.org/wiki/Ringschluss |
Ringwoodite is a high-pressure phase of Mg 2 SiO 4 (magnesium silicate) formed at high temperatures and pressures of the Earth's mantle between 525 and 660 km (326 and 410 mi) depth. It may also contain iron and hydrogen . It is polymorphous with the olivine phase forsterite (a magnesium iron silicate ).
Ringwoodite i... | https://en.wikipedia.org/wiki/Ringwoodite |
Ringworld is a 1970 science fiction novel by Larry Niven , set in his Known Space universe and considered a classic of science fiction literature. Ringworld tells the story of Louis Wu and his companions on a mission to the Ringworld, an enormous rotating ring, an alien construct in space 186 million miles (299 million... | https://en.wikipedia.org/wiki/Ringworld |
The Rio Grande Project is a United States Bureau of Reclamation irrigation , hydroelectricity , flood control , and interbasin water transfer project serving the upper Rio Grande basin in the southwestern United States . The project irrigates 193,000 acres (780 km 2 ) along the river in the states of New Mexico and Tex... | https://en.wikipedia.org/wiki/Rio_Grande_Project |
A Riordan array is an infinite lower triangular matrix , D {\displaystyle D} , constructed from two formal power series , d ( t ) {\displaystyle d(t)} of order 0 and h ( t ) {\displaystyle h(t)} of order 1, such that d n , k = [ t n ] d ( t ) h ( t ) k {\displaystyle d_{n,k}=[t^{n}]d(t)h(t)^{k}} .
A Riordan array is a... | https://en.wikipedia.org/wiki/Riordan_array |
A riparian buffer or stream buffer is a vegetated area (a " buffer strip ") near a stream , usually forested , which helps shade and partially protect the stream from the impact of adjacent land uses . It plays a key role in increasing water quality in associated streams, rivers , and lakes , thus providing environment... | https://en.wikipedia.org/wiki/Riparian_buffer |
A riparian zone or riparian area is the interface between land and a river or stream . [ 2 ] In some regions, the terms riparian woodland , riparian forest , riparian buffer zone , riparian corridor , and riparian strip are used to characterize a riparian zone. The word riparian is derived from Latin ripa , meaning " r... | https://en.wikipedia.org/wiki/Riparian_zone |
The Ripper Method , developed in 1898, [ 1 ] is an analytical chemistry technique used to determine the total amount of sulfur dioxide (SO 2 ) in a solution. This technique uses iodine standard and a starch indicator to titrate the solution and determine the concentration of free SO 2 . The titration is done again with... | https://en.wikipedia.org/wiki/Ripper_Method |
Ripple20 is a set of vulnerabilities discovered in 2020 in a software library that implemented a TCP/IP stack . The security concerns were discovered by JSOF, which named the collective vulnerabilities for how one company's code became embedded into numerous products. The software library was created around 1997 and ha... | https://en.wikipedia.org/wiki/Ripple20 |
In physics , a ripple tank is a shallow glass tank of water used to demonstrate the basic properties of waves . It is a specialized form of a wave tank . The ripple tank is usually illuminated from above, so that the light shines through the water. Some small ripple tanks fit onto the top of an overhead projector , i.e... | https://en.wikipedia.org/wiki/Ripple_tank |
In computer science , more particularly in automated theorem proving , rippling [ 1 ] is a group of meta-level heuristics , developed primarily in the Mathematical Reasoning Group in the School of Informatics at the University of Edinburgh , and most commonly used to guide inductive proofs in automated theorem proving ... | https://en.wikipedia.org/wiki/Rippling |
In symbolic computation , the Risch algorithm is a method of indefinite integration used in some computer algebra systems to find antiderivatives . It is named after the American mathematician Robert Henry Risch , a specialist in computer algebra who developed it in 1968.
The algorithm transforms the problem of integr... | https://en.wikipedia.org/wiki/Risch_algorithm |
The rise in core ( RIC ) method is an alternate reservoir wettability characterization method described by S. Ghedan and C. H. Canbaz in 2014. The method enables estimation of all wetting regions such as strongly water wet, intermediate water, oil wet and strongly oil wet regions in relatively quick and accurate measur... | https://en.wikipedia.org/wiki/Rise_in_core |
In electronics , when describing a voltage or current step function , rise time is the time taken by a signal to change from a specified low value to a specified high value. [ 1 ] These values may be expressed as ratios [ 2 ] or, equivalently, as percentages [ 3 ] with respect to a given reference value. In analog elec... | https://en.wikipedia.org/wiki/Rise_time |
A riser clamp is a type of hardware used by mechanical building trades for pipe support in vertical runs of piping (risers) at each floor level. The devices are placed around the pipe, and integral fasteners are then tightened to clamp them onto the pipe. [ 1 ] [ 2 ] The friction between the pipe and riser clamp transf... | https://en.wikipedia.org/wiki/Riser_clamp |
The Harari–Shupe preon model (also known as rishon model , RM ) is the earliest effort to develop a preon model to explain the phenomena appearing in the Standard Model (SM) of particle physics . [ 1 ] It was first developed independently by Haim Harari and by Michael A. Shupe [ 2 ] and later expanded by Harari and his... | https://en.wikipedia.org/wiki/Rishon_model |
A rising film or vertical long tube evaporator is a type of evaporator that is essentially a vertical shell and tube heat exchanger. The liquid being evaporated is fed from the bottom into long tubes and heated with steam condensing on the outside of the tube from the shell side. This is to produce steam and vapour wit... | https://en.wikipedia.org/wiki/Rising_film_evaporator |
Rising Step Load Testing (or RSL testing ) is a testing system that can apply loads in tension or bending to evaluate hydrogen-induced cracking (also called hydrogen embrittlement ). It was specifically designed to conduct the accelerated ASTM F1624 [ 1 ] step-modified, slow strain rate tests on a variety of test coup... | https://en.wikipedia.org/wiki/Rising_step_load_testing |
Risk-sensitive foraging models help to explain the variance in foraging behaviour in animals. This model allows powerful predictions to be made about expected foraging behaviour for individual groups of animals. Risk sensitive foraging is based on experimental evidence that the net energy budget level of an animal is p... | https://en.wikipedia.org/wiki/Risk-sensitive_foraging_models |
Risk Evaluation and Mitigation Strategies ( REMS ) is a program of the US Food and Drug Administration for the monitoring of medications with a high potential for serious adverse effects . REMS applies only to specific prescription drugs, but can apply to brand-name or generic drugs. [ 1 ] The REMS program was formaliz... | https://en.wikipedia.org/wiki/Risk_Evaluation_and_Mitigation_Strategies |
Risk aversion is a preference for a sure outcome over a gamble with higher or equal expected value. Conversely, rejection of a sure thing in favor of a gamble of lower or equal expected value is known as risk-seeking behavior.
The psychophysics of chance induce overweighting of sure things and of improbable events, r... | https://en.wikipedia.org/wiki/Risk_aversion_(psychology) |
A risk management plan is a document to foresee risks, estimate impacts, and define responses to risks. It also contains a risk assessment matrix . According to the Project Management Institute , a risk management plan is a "component of the project, program, or portfolio management plan that describes how risk managem... | https://en.wikipedia.org/wiki/Risk_management_plan |
Risks of astronomical suffering , also called suffering risks or s-risks , are risks involving much more suffering than all that has occurred on Earth so far. [ 2 ] [ 3 ] They are sometimes categorized as a subclass of existential risks . [ 4 ]
According to some scholars, s-risks warrant serious consideration as they ... | https://en.wikipedia.org/wiki/Risk_of_astronomical_suffering |
Ristocetin is a glycopeptide antibiotic , obtained from Amycolatopsis lurida , previously used to treat staphylococcal infections . It is no longer used clinically because it caused thrombocytopenia and platelet agglutination . It is now used solely to assay those functions in vitro in the diagnosis of conditions such... | https://en.wikipedia.org/wiki/Ristocetin |
The Rittenhouse Medal is awarded by the Rittenhouse Astronomical Society for outstanding achievement in the science of Astronomy. [ 1 ] The medal was one of those originally minted to commemorate the Bi-Centenary of the birth of David Rittenhouse on April 8, 1932. In 1952 the Society decided to establish a silver medal... | https://en.wikipedia.org/wiki/Rittenhouse_Medal |
The Ritter reaction (sometimes called the Ritter amidation ) is a chemical reaction that transforms a nitrile into an N -alkyl amide using various electrophilic alkylating reagents. The original reaction formed the alkylating agent using an alkene in the presence of a strong acid . [ 1 ] [ 2 ] [ 3 ] [ 4 ]
The Ritter r... | https://en.wikipedia.org/wiki/Ritter_reaction |
Rituximab , sold under the brand name Rituxan among others, is a monoclonal antibody medication used to treat certain autoimmune diseases and types of cancer . [ 17 ] It is used for non-Hodgkin lymphoma , chronic lymphocytic leukemia (in children and adults, but not recommended in elderly patients), rheumatoid arthriti... | https://en.wikipedia.org/wiki/Rituximab |
River bank erosion along the Ganges in Malda and Murshidabad districts focusses on river bank erosion along the main channel of the Ganges in Malda and Mushidabad districts of West Bengal , India .
The Ganges is a long river carrying a huge discharge of 70,000 m 3 /s. However, the river bank erosion problems are restr... | https://en.wikipedia.org/wiki/River_bank_erosion_along_the_Ganges_in_Malda_and_Murshidabad_districts |
River bank failure can be caused when the gravitational forces acting on a bank exceed the forces which hold the sediment together. Failure depends on sediment type, layering, and moisture content . [ 1 ]
All river banks experience erosion , but failure is dependent on the location and the rate at which erosion is occ... | https://en.wikipedia.org/wiki/River_bank_failure |
The river barrier hypothesis is a hypothesis seeking to partially explain the high species diversity in the Amazon Basin , first presented by Alfred Russel Wallace in his 1852 paper On Monkeys of the Amazon . [ 1 ] It argues that the formation and movement of the Amazon and some of its tributaries presented a significa... | https://en.wikipedia.org/wiki/River_barrier_hypothesis |
River bifurcation (from Latin : furca , fork) occurs when a river (a bifurcating river ) flowing in a single channel separates into two or more separate streams (called distributaries ) which then continue downstream . Some rivers form complex networks of distributaries, typically in their deltas . If the streams event... | https://en.wikipedia.org/wiki/River_bifurcation |
A river delta is a landform , archetypically triangular, created by the deposition of the sediments that are carried by the waters of a river , where the river merges with a body of slow-moving water or with a body of stagnant water. [ 1 ] [ 2 ] The creation of a river delta occurs at the river mouth , where the river ... | https://en.wikipedia.org/wiki/River_delta |
River ecosystems are flowing waters that drain the landscape, and include the biotic (living) interactions amongst plants, animals and micro-organisms, as well as abiotic (nonliving) physical and chemical interactions of its many parts. [ 1 ] [ 2 ] River ecosystems are part of larger watershed networks or catchments, w... | https://en.wikipedia.org/wiki/River_ecosystem |
River engineering is a discipline of civil engineering which studies human intervention in the course, characteristics, or flow of a river with the intention of producing some defined benefit. People have intervened in the natural course and behaviour of rivers since before recorded history—to manage the water resource... | https://en.wikipedia.org/wiki/River_engineering |
River linking is a project of linking two or more rivers by creating a network of manually created reservoirs and canals , and providing land areas that otherwise does not have river water access and reducing the flow of water to sea using this means. It is based on the assumptions that surplus water in some rivers can... | https://en.wikipedia.org/wiki/River_linking |
A river mile is a measure of distance in miles along a river from its mouth . River mile numbers begin at zero and increase further upstream. The corresponding metric unit using kilometers is the river kilometer . They are analogous to vehicle roadway mile markers , except that river miles are rarely marked on the phys... | https://en.wikipedia.org/wiki/River_mile |
A river mouth is where a river flows into a larger body of water , such as another river, a lake / reservoir , a bay / gulf , a sea , or an ocean . [ 1 ] At the river mouth, sediments are often deposited due to the slowing of the current, reducing the carrying capacity of the water. [ 1 ] The water from a river can ent... | https://en.wikipedia.org/wiki/River_mouth |
A Rivlin–Ericksen temporal evolution of the strain rate tensor such that the derivative translates and rotates with the flow field. The first-order Rivlin–Ericksen is given by
where
Higher-order tensor may be found iteratively by the expression
The derivative chosen for this expression depends on convention. The u... | https://en.wikipedia.org/wiki/Rivlin–Ericksen_tensor |
Radon difluoride ( RnF 2 ) is a compound of radon , a radioactive noble gas . Radon reacts readily with fluorine to form a solid compound, but this decomposes on attempted vaporization and its exact composition is uncertain. [ 1 ] [ 2 ] Calculations suggest that it may be ionic , [ 3 ] unlike all other known binary no... | https://en.wikipedia.org/wiki/RnF2 |
Ro05-4082 ( N-methylclonazepam , ID-690 ) is a benzodiazepine derivative developed in the 1970s. It has sedative and hypnotic properties, and has around the same potency as clonazepam itself. [ 1 ] It was never introduced into clinical use. It is a structural isomer of meclonazepam (3-methylclonazepam), and similarly h... | https://en.wikipedia.org/wiki/Ro05-4082 |
The reduction-oxidation sensitive green fluorescent protein ( roGFP ) is a green fluorescent protein engineered to be sensitive to changes in the local redox environment. roGFPs are used as redox -sensitive biosensors .
In 2004, researchers in S. James Remington 's lab at the University of Oregon constructed the first... | https://en.wikipedia.org/wiki/RoGFP |
The Restriction of Hazardous Substances Directive 2002/95/EC ( RoHS 1 ), short for Directive on the restriction of the use of certain hazardous substances in electrical and electronic equipment , was adopted in February 2003 by the European Union . [ 2 ]
The initiative was to limit the amount of hazardous chemicals in... | https://en.wikipedia.org/wiki/RoHS |
In graph theory the road coloring theorem , known previously as the road coloring conjecture , deals with synchronized instructions . The issue involves whether by using such instructions, one can reach or locate an object or destination from any other point within a network (which might be a representation of city str... | https://en.wikipedia.org/wiki/Road_Coloring_Conjecture |
The Road and Waterway Construction Service Corps [ 1 ] ( Swedish : Väg- och vattenbyggnadskåren , VVK) was during the years 1851–2010 a military administrative corps of reserve personnel in the Swedish Army , who was responsible for in the case of war provide the Swedish Armed Forces with specially trained personnel to... | https://en.wikipedia.org/wiki/Road_and_Waterway_Construction_Service_Corps |
In graph theory the road coloring theorem , known previously as the road coloring conjecture , deals with synchronized instructions . The issue involves whether by using such instructions, one can reach or locate an object or destination from any other point within a network (which might be a representation of city str... | https://en.wikipedia.org/wiki/Road_coloring_theorem |
Road curves are irregular bends in roads to bring a gradual change of direction. Similar curves are on railways and canals . [ 1 ]
Curves provided in the horizontal plane are known as horizontal curves and are generally circular or parabolic. Curves provided in the vertical plane are known as vertical curve.
Five typ... | https://en.wikipedia.org/wiki/Road_curve |
Road debris , a form of road hazard, is debris that accumulates on or off a road . Road debris includes substances, materials, and objects that are foreign to the normal roadway environment. Debris may be produced by vehicular or non-vehicular sources, although in all cases it is considered litter , a form of solid was... | https://en.wikipedia.org/wiki/Road_debris |
A road maintenance depot is a depot used by road maintenance agencies for storing works equipment and organising maintenance operations. Road maintenance depots can range in size from small sheds storing just a few pieces of equipment, to vast buildings housing computer and closed-circuit television systems, allowing o... | https://en.wikipedia.org/wiki/Road_maintenance_depot |
Soil stabilizers and road recyclers are engineering vehicles that were once similar machines; however, they are now specialised pieces of road making machinery and have developed into different machines. Other terms that are sometimes used are: road profiler, road reclaimer, road miller, road planer and pavement profil... | https://en.wikipedia.org/wiki/Road_recycler |
A road roller (sometimes called a roller-compactor , or just roller [ 1 ] ) is a compactor -type engineering vehicle used to compact soil , gravel , concrete , or asphalt in the construction of roads and foundations . [ 1 ] Similar rollers are used also at landfills or in agriculture.
Road rollers are frequently refer... | https://en.wikipedia.org/wiki/Road_roller |
Road salt (also known as de-icing salt , rock salt , or snow salt ) is a salt used mainly as an anti-slip agent in winter road conditions , but also to prevent dust and snow build-up on roads . [ 1 ] Various kinds of salts are used as road salt, but calcium chloride and sodium chloride (rock salt) are among the most co... | https://en.wikipedia.org/wiki/Road_salt |
Road slipperiness is a condition of low skid resistance due to insufficient road friction. It is a result of snow , ice , water , loose material and the texture of the road surface on the traction produced by the wheels of a vehicle . [ 1 ]
Road slipperiness can be measured either in terms of the friction between a fr... | https://en.wikipedia.org/wiki/Road_slipperiness |
A road surface ( British English ) or pavement ( North American English ) is the durable surface material laid down on an area intended to sustain vehicular or foot traffic , such as a road or walkway . In the past, gravel road surfaces, macadam , hoggin , cobblestone and granite setts were extensively used, but these ... | https://en.wikipedia.org/wiki/Road_surface |
A road train , also known as a land train or long combination vehicle (LCV) is a semi-trailer used to move road freight more efficiently than single-trailer semi-trailers. It consists of one semi-trailer or more connected together with or without a prime-mover . [ 1 ] It typically has to be at least three trailers and ... | https://en.wikipedia.org/wiki/Road_train |
In business travel, a road warrior is a remote worker that uses mobile devices such as tablet computers , laptops , smartphones , and Internet access while traveling to conduct business. [ 1 ] The term has often been used with regard to salespeople who travel often and who seldom are in the office. Today it is used for... | https://en.wikipedia.org/wiki/Road_warrior_(computing) |
A road is a thoroughfare used primarily for movement of traffic . Roads differ from streets , whose primary use is local access. They also differ from stroads , which combine the features of streets and roads. Most modern roads are paved .
The words "road" and "street" are commonly considered to be interchangeable, bu... | https://en.wikipedia.org/wiki/Roadbed |
A roadheader , also called a boom-type roadheader , road header machine , road header or just header machine , is a piece of excavating equipment consisting of a boom-mounted cutting head, a loading device usually involving a conveyor, and a crawler travelling track to move the entire machine forward into the rock face... | https://en.wikipedia.org/wiki/Roadheader |
Roadkill is a wild animal that has been killed by collision with motor vehicles. Wildlife-vehicle collisions (WVC) have increasingly been the topic of academic research to understand the causes, and how they can be mitigated. [ 1 ] [ 2 ] [ 3 ]
Essentially non-existent before the advent of mechanized transport, roadki... | https://en.wikipedia.org/wiki/Roadkill |
The roadometer was a 19th-century device like an odometer for measuring mileage, mounted on a wagon wheel. One such device was invented in 1847 by William Clayton , Orson Pratt , and Appleton Harmon, pioneers of the Church of Jesus Christ of Latter-day Saints .
Brass odometers were used by many pioneers making the wes... | https://en.wikipedia.org/wiki/Roadometer_(odometer) |
Roadworthiness [ 1 ] or streetworthiness is a property or ability of a car , bus , truck or any kind of automobile to be in a suitable operating condition or meeting acceptable standards for safe driving and transport of people, baggage or cargo in roads or streets , being therefore street-legal .
In Europe, roadworth... | https://en.wikipedia.org/wiki/Roadworthiness |
Roald Hoffmann (born Roald Safran ; July 18, 1937) [ 2 ] is a Polish-American theoretical chemist who won the 1981 Nobel Prize in Chemistry . He has also published plays and poetry. He is the Frank H. T. Rhodes Professor of Humane Letters Emeritus at Cornell University . [ 3 ] [ 4 ] [ 5 ] [ 6 ]
Hoffmann was born in Zł... | https://en.wikipedia.org/wiki/Roald_Hoffmann |
Roam is a California -based productivity and note-taking application developed by Roam Research Inc. The system is built on a directed graph, which frees it from the constraints of the classic filesystem tree. [ 1 ] It is viewed as a competitor to Notion . [ 2 ] [ 3 ]
This business software article is a stub . You can... | https://en.wikipedia.org/wiki/Roam_(software) |
A roaming SIM is a mobile phone SIM card that operates on more than one network within its home country. Roaming SIMs currently have two main applications, the least cost call routing for roaming mobile calls and machine to machine .
Using a normal network locked SIM , travelers can use their own roaming enabled mobil... | https://en.wikipedia.org/wiki/Roaming_SIM |
A railgrinder (or rail grinder) is a maintenance of way vehicle or train used to restore the profile and remove irregularities from worn tracks to extend its life and to improve the ride of trains using the track. Rail grinders were developed to increase the lifespan of the tracks being serviced for rail corrugation. R... | https://en.wikipedia.org/wiki/Roaring_rails |
Roark's Formulas for Stress and Strain is a mechanical engineering design book written by Richard G. Budynas and Ali M. Sadegh. It was first published in 1938 and the most current ninth edition was published in March 2020. [ 1 ]
The book covers various subjects, including bearing and shear stress , experimental stress... | https://en.wikipedia.org/wiki/Roark's_Formulas_for_Stress_and_Strain |
Roasting is a process of heating a sulfide ore to a high temperature in the presence of air. It is a step in the processing of certain ores . More specifically, roasting is often a metallurgical process involving gas–solid reactions at elevated temperatures with the goal of purifying the metal component(s). Often bef... | https://en.wikipedia.org/wiki/Roasting_(metallurgy) |
Simon's reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It reacts with secondary amines like MDMA and methamphetamine to give a blue solution.
The primary use of this reagent is for detecting secondary amines, such as MDMA and methamphetamine , and is typically use... | https://en.wikipedia.org/wiki/Robadope_reagent |
In abstract algebra , a Robbins algebra is an algebra containing a single binary operation , usually denoted by ∨ {\displaystyle \lor } , and a single unary operation usually denoted by ¬ {\displaystyle \neg } satisfying the following axioms :
For all elements a , b , and c :
For many years, it was conjectured, but u... | https://en.wikipedia.org/wiki/Robbins_algebra |
A Robel pole is a device consisting of a 1 to 2 m (3 ft 3 in to 6 ft 7 in) vertical pole possessing alternating horizontal bands and a 4 m (13 ft) line of rope or cord. It is used by range ecologists, field biologists and other scientists to measure the density of vegetation and to quantify the volume of ground cover i... | https://en.wikipedia.org/wiki/Robel_pole |
Robert "Bob" Swanson (1947–1999) was an American venture capitalist who co-founded Genentech in 1976 with Herbert Boyer . Genentech is one of the leading biotechnology companies in the world. He was CEO of Genentech from 1976 to 1990, and chairman from 1990 to 1996.
Swanson graduated from the Massachusetts Institute o... | https://en.wikipedia.org/wiki/Robert_A._Swanson |
Robert Blanché (1898–1975) was an associate professor of philosophy at the University of Toulouse . He wrote many books addressing the philosophy of mathematics .
Robert Blanché died in 1975. Nine years before, in 1966, he published with Vrin: Structures intellectuelles . Therein, he deals with the logical hexagon . W... | https://en.wikipedia.org/wiki/Robert_Blanché |
Robert Burns Woodward ForMemRS HonFRSE (April 10, 1917 – July 8, 1979) was an American organic chemist . He is considered by many to be the preeminent synthetic organic chemist of the twentieth century, [ 3 ] having made many key contributions to the subject, especially in the synthesis of complex natural products and ... | https://en.wikipedia.org/wiki/Robert_Burns_Woodward |
Robert Joseph Cava (born 1951) [ 4 ] is a solid-state chemist at Princeton University where he holds the title Russell Wellman Moore Professor of Chemistry . [ 5 ] Previously, Professor Cava worked as a staff scientist at Bell labs from 1979–1996, where earned the title of Distinguished Member of the Technical Staff. A... | https://en.wikipedia.org/wiki/Robert_Cava |
Robert Day Shannon (born 1935) is a retired research chemist formerly at DuPont de Nemours, Inc. [ 1 ]
Shannon received his B.S. and M.S. degrees in Ceramic Engineering from the University of Illinois in 1957 and 1959. He then went on to receive his Ph.D. in Ceramic Engineering from the University of California at Ber... | https://en.wikipedia.org/wiki/Robert_D._Shannon |
Robert Eugene Rundle (1915 – 9 October 1963) was an American chemist and crystallographer . He was a professor at Iowa State University and fellow of the American Physical Society .
Rundle was born in Orleans, Nebraska in 1915. [ 1 ] [ 2 ] He attended University of Nebraska where he completed a bachelor of science in ... | https://en.wikipedia.org/wiki/Robert_E._Rundle |
Robert Gerard Wilhelm (born June 27, 1960) is an American mechanical engineer.
Wilhelm holds the Kate Foster professorship in Mechanical and Materials Engineering at the University of Nebraska — Lincoln . From 2018 to 2023 he served as the Vice Chancellor for Research and Economic Development at UNL. [ 1 ]
Before joi... | https://en.wikipedia.org/wiki/Robert_G._Wilhelm |
Robert Goulston Gilbert (born 1946) is a polymer chemist whose most significant contributions have been in the field of emulsion polymerisation . In 1970 he gained his PhD from the Australian National University , and worked at the University of Sydney from then until 2006. In 1982, he was elected a fellow of the Royal... | https://en.wikipedia.org/wiki/Robert_Gilbert_(chemist) |
Robert Guillaumont [ 1 ] (born 26 February 1933 in Lyon) is a French chemist and honorary professor at the University of Paris-Saclay in Orsay (1967-1998), Member of the French Academy of Sciences [ 2 ] and the French Academy of Technologies [ 3 ]
Robert Guillaumont is a specialist in radiochemistry and actinide chemi... | https://en.wikipedia.org/wiki/Robert_Guillaumont |
Robert Brill is an American archaeologist, best known for his work on the chemical analysis of ancient glass . Born in the US in 1929, Brill attended West Side High School in Newark, New Jersey, before going on to study for his B.S. degree at Upsala College (Brill 1993a, Brill 2006, Getty Conservation Institute 2009). ... | https://en.wikipedia.org/wiki/Robert_H._Brill |
Robert Howard Crabtree FRS [ 2 ] (born 17 April 1948) is a British-American chemist . He is serving as Conkey P. Whitehead Professor Emeritus of Chemistry at Yale University in the United States. He is a naturalized citizen of the United States. [ 3 ] Crabtree is particularly known for his work on " Crabtree's catalyst... | https://en.wikipedia.org/wiki/Robert_H._Crabtree |
Robert Miller Hazen (born November 1, 1948) is an American mineralogist and astrobiologist . He is a research scientist at the Carnegie Institution of Washington 's Geophysical Laboratory and Clarence Robinson Professor of Earth Science at George Mason University , in the United States . Hazen is the Executive Director... | https://en.wikipedia.org/wiki/Robert_Hazen |
Sir Robert Howson Pickard FRS (27 September 1874 – 18 October 1949) was a chemist who did pioneering work in stereochemistry and also for the cotton industry in Lancashire . He was also involved in educational administration and was Vice Chancellor of the University of London from 1937-1939. [ 1 ] He was Principal of B... | https://en.wikipedia.org/wiki/Robert_Howson_Pickard |
Robert Hurst , CBE , GM (3 January 1915 – 16 May 1996) was a New Zealand -born scientist. He was the first director of the experimental fast-breeder reactor complex at Dounreay , and later the director of the British Ship Research Association. During World War II , he worked in bomb disposal and mine detection, and w... | https://en.wikipedia.org/wiki/Robert_Hurst_(nuclear_chemist) |
The Robert J. Trumpler Award of the Astronomical Society of the Pacific is given annually to a recent recipient of the Ph.D degree whose thesis is judged particularly significant to astronomy. [ 1 ] The award is named after Robert Julius Trumpler , a notable Swiss-American astronomer (1886–1956).
Source: ASP | https://en.wikipedia.org/wiki/Robert_J._Trumpler_Award |
Robert Travis Kennedy is an American chemist specializing in bioanalytical chemistry including liquid chromatography , capillary electrophoresis , and microfluidics . He is currently the Hobart H. Willard Distinguished University Professor of Chemistry and the chair of the department of chemistry at the University of M... | https://en.wikipedia.org/wiki/Robert_Kennedy_(chemist) |
Robert Nicholas "Bob" Klein II is a stem cell advocate. He initiated California Proposition 71 , which succeeded in establishing the California Institute for Regenerative Medicine , of which Klein was the chairman of the governing board. [ 1 ]
Before getting involved in stem cell advocacy, he was a housing developer a... | https://en.wikipedia.org/wiki/Robert_N._Klein_II |
Robert Elliot Pollack (born September 2, 1940) is an American academic, administrator, biologist, and philosopher, who served as a long-time Professor of Biological Sciences at Columbia University .
Born in Brooklyn , Pollack earned a Bachelor of Arts in physics at Columbia College in 1961. He received a PhD in Biolog... | https://en.wikipedia.org/wiki/Robert_Pollack_(biologist) |
Robert 'Bob' Ramage FRS [ 1 ] (4 October 1935 — 16 October 2019) was an organic chemist , born in Glasgow , who specialised in the synthesis and biosynthesis of natural products , peptides , and proteins .
Following his undergraduate degree in chemistry and the University of Glasgow , he stayed on for a PhD in organic... | https://en.wikipedia.org/wiki/Robert_Ramage_(chemist) |
Robert S. Roth (August 21, 1926 – July 16, 2012) was an American materials scientist known for his comprehensive research into the phase diagrams of ceramic materials and the structures of nonstoichiometric compounds . [ 1 ]
Roth studied geology at Coe College and University of Illinois Urbana-Champaign , where he obt... | https://en.wikipedia.org/wiki/Robert_S._Roth |
Robert Sidney Cahn (9 June 1899 – 15 June 1981) was a British chemist, best known for his contributions to chemical nomenclature and stereochemistry , particularly by the Cahn–Ingold–Prelog priority rules , which he proposed in 1956 with Christopher Kelk Ingold and Vladimir Prelog . [ 1 ] Cahn was the first to report t... | https://en.wikipedia.org/wiki/Robert_Sidney_Cahn |
Robert Vaßen is a German physicist and holds a teaching professorship at the Ruhr University Bochum at the Institute of Materials in the Department of Ceramics Technology. [ 1 ] He is head of the department "Materials for High Temperature Technologies" and deputy head of the Institute of Energy Materials and Devices (I... | https://en.wikipedia.org/wiki/Robert_Vaßen |
Robert W. Bussard (August 11, 1928 – October 6, 2007) was an American physicist who worked primarily in nuclear fusion energy research. He was the recipient of the Schreiber-Spence Achievement Award for STAIF-2004. [ 1 ] He was also a fellow of the International Academy of Astronautics and held a Ph.D. from Princeton U... | https://en.wikipedia.org/wiki/Robert_W._Bussard |
Robert William Holley (January 28, 1922 – February 11, 1993) was an American biochemist . He shared the Nobel Prize in Physiology or Medicine in 1968 (with Har Gobind Khorana and Marshall Warren Nirenberg ) for describing the structure of alanine transfer RNA , linking DNA and protein synthesis .
Holley was born in Ur... | https://en.wikipedia.org/wiki/Robert_W._Holley |
The Roberts loom was a cast-iron power loom introduced by Richard Roberts in 1830. It was the first loom that was more viable than a hand loom and was easily adjustable and reliable, which led to its widespread use in the Lancashire cotton industry.
Roberts was born at Llanymynech , on the border between England and W... | https://en.wikipedia.org/wiki/Roberts_Loom |
The Roberval balance is a weighing scale presented to the French Academy of Sciences by the French mathematician Gilles Personne de Roberval in 1669.
In this scale, two identical horizontal beams are attached, one directly above the other, to a vertical column, which is attached to a stable base. On each side, both ho... | https://en.wikipedia.org/wiki/Roberval_balance |
Robinose is a disaccharide composed of 6″-O-α- rhamnopyranosyl -β- galactopyranoside . The sugar can be found in Acalypha hispida . [ 1 ]
Robinin is a kaempferol -3- O -robinoside-7- O -rhamnoside.
This biochemistry article is a stub . You can help Wikipedia by expanding it . | https://en.wikipedia.org/wiki/Robinose |
Robinson's joint consistency theorem is an important theorem of mathematical logic . It is related to Craig interpolation and Beth definability .
The classical formulation of Robinson's joint consistency theorem is as follows:
Let T 1 {\displaystyle T_{1}} and T 2 {\displaystyle T_{2}} be first-order theories . If T ... | https://en.wikipedia.org/wiki/Robinson's_joint_consistency_theorem |
The Robinson annulation is a chemical reaction used in organic chemistry for ring formation. It was discovered by Robert Robinson in 1935 as a method to create a six membered ring by forming three new carbon–carbon bonds. [ 1 ] The method uses a ketone and a methyl vinyl ketone to form an α,β-unsaturated ketone in a cy... | https://en.wikipedia.org/wiki/Robinson_annulation |
In mathematics , Robinson arithmetic is a finitely axiomatized fragment of first-order Peano arithmetic (PA), first set out by Raphael M. Robinson in 1950. [ 1 ] It is usually denoted Q .
Q is almost [ clarification needed ] PA without the axiom schema of mathematical induction . Q is weaker than PA but it has the sam... | https://en.wikipedia.org/wiki/Robinson_arithmetic |
The Robinson oscillator is an electronic oscillator circuit originally devised for use in the field of continuous wave (CW) nuclear magnetic resonance (NMR). It was a development of the marginal oscillator . Strictly one should distinguish between the marginal oscillator and the Robinson oscillator, although sometimes ... | https://en.wikipedia.org/wiki/Robinson_oscillator |
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