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Rheology

Index Rheology

Rheology (from Greek ῥέω rhéō, "flow" and -λoγία, -logia, "study of") is the study of the flow of matter, primarily in a liquid state, but also as "soft solids" or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an applied force. [1]

125 relations: Acrylic paint, Ancient Greek, Aphorism, Bingham plastic, Biology, Blood plasma, Body fluid, Cement, Chemical engineering, Chemistry, Chocolate, Civil engineering, Colloid, Concrete, Condensation, Continuum mechanics, Cosmetics, Deborah number, Deformation (mechanics), Density, Die swell, Dilatant, Dimensionless quantity, Dispersion (chemistry), Emulsion, Engineering, Eugene C. Bingham, Farris effect (rheology), Filler (materials), Flow velocity, Fluid, Fluid dynamics, Fluid mechanics, Food additive, Food rheology, Food science, Force, Gel, Geophysics, Glass transition, Granite, Granular material, Hematocrit, Hemorheology, Heraclitus, Hydrolysis, Inertia, Interdisciplinarity, Inviscid flow, Isaac Newton, ..., Kelvin–Voigt material, Ketchup, Lafayette College, Laminar flow, Lava, Liquid, List of rheologists, Markus Reiner, Materials science, Maxwell material, Mechanical engineering, Mechanical equilibrium, Medicine, Microrheology, Molecule, Mortar (masonry), Mud, Natural gum, Natural rubber, Newtonian fluid, Non-Newtonian fluid, Optics, Paint, Pectin, Personal care, Pharmaceutics, Physics, Physiology, Plasticity (physics), Platelet, Polymer, Polysaccharide, Protein, Ratio, Red blood cell, Refractory, Reynolds number, Rheid, Rheological weldability, Rheometer, Rheometry, Rheopecty, Sensor, Shear stress, Silicone, Silly Putty, Similitude (model), Simplicius of Cilicia, Sludge, Soft matter, Sol (colloid), Sol–gel process, Solid, Solid mechanics, Space Shuttle Challenger, Space Shuttle Solid Rocket Booster, Starch, Strain rate, Strength of materials, Stress (mechanics), Superplasticizer, Surface finishing, Suspension (chemistry), Synaeresis, Thermal insulation, Thickening agent, Thixotropy, Transport phenomena, Turbulence, Viscoelasticity, Viscosity, Vitreous body, White blood cell, Yield (engineering), Yogurt. Expand index (75 more) »

Acrylic paint

Acrylic paint is a fast-drying paint made of pigment suspended in acrylic polymer emulsion.

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Ancient Greek

The Ancient Greek language includes the forms of Greek used in ancient Greece and the ancient world from around the 9th century BC to the 6th century AD.

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Aphorism

An aphorism (from Greek ἀφορισμός: aphorismos, denoting "delimitation", "distinction", and "definition") is a concise, terse, laconic, and/or memorable expression of a general truth or principle.

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Bingham plastic

A Bingham plastic is a viscoplastic material that behaves as a rigid body at low stresses but flows as a viscous fluid at high stress.

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Biology

Biology is the natural science that studies life and living organisms, including their physical structure, chemical composition, function, development and evolution.

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Blood plasma

Blood plasma is a yellowish coloured liquid component of blood that normally holds the blood cells in whole blood in suspension; this makes plasma the extracellular matrix of blood cells.

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Body fluid

Body fluid, bodily fluids, or biofluids are liquids within the bodies of living people.

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Cement

A cement is a binder, a substance used for construction that sets, hardens and adheres to other materials, binding them together.

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Chemical engineering

Chemical engineering is a branch of engineering that uses principles of chemistry, physics, mathematics and economics to efficiently use, produce, transform, and transport chemicals, materials and energy.

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Chemistry

Chemistry is the scientific discipline involved with compounds composed of atoms, i.e. elements, and molecules, i.e. combinations of atoms: their composition, structure, properties, behavior and the changes they undergo during a reaction with other compounds.

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Chocolate

Chocolate is a typically sweet, usually brown food preparation of Theobroma cacao seeds, roasted and ground.

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Civil engineering

Civil engineering is a professional engineering discipline that deals with the design, construction, and maintenance of the physical and naturally built environment, including works such as roads, bridges, canals, dams, airports, sewerage systems, pipelines, and railways.

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Colloid

In chemistry, a colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance.

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Concrete

Concrete, usually Portland cement concrete, is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens over time—most frequently a lime-based cement binder, such as Portland cement, but sometimes with other hydraulic cements, such as a calcium aluminate cement.

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Condensation

Condensation is the change of the physical state of matter from gas phase into liquid phase, and is the reverse of vapourisation.

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Continuum mechanics

Continuum mechanics is a branch of mechanics that deals with the analysis of the kinematics and the mechanical behavior of materials modeled as a continuous mass rather than as discrete particles.

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Cosmetics

Cosmetics are substances or products used to enhance or alter the appearance of the face or fragrance and texture of the body.

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Deborah number

The Deborah number (De) is a dimensionless number, often used in rheology to characterize the fluidity of materials under specific flow conditions.

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Deformation (mechanics)

Deformation in continuum mechanics is the transformation of a body from a reference configuration to a current configuration.

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Density

The density, or more precisely, the volumetric mass density, of a substance is its mass per unit volume.

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Die swell

Die swell, also known as extrudate swell or Barus effect, is a common phenomenon in polymer processing.

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Dilatant

A dilatant (also termed shear thickening) material is one in which viscosity increases with the rate of shear strain.

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Dimensionless quantity

In dimensional analysis, a dimensionless quantity is a quantity to which no physical dimension is assigned.

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Dispersion (chemistry)

A dispersion is a system in which particles are dispersed in a continuous phase of a different composition (or state).

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Emulsion

An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable).

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Engineering

Engineering is the creative application of science, mathematical methods, and empirical evidence to the innovation, design, construction, operation and maintenance of structures, machines, materials, devices, systems, processes, and organizations.

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Eugene C. Bingham

Eugene Cook Bingham (8 December 1878 – 6 November 1945) was a professor and head of the department of chemistry at Lafayette College.

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Farris effect (rheology)

In rheology, the Farris Effect describes the decrease of the viscosity of a suspension upon increasing the dispersity of the solid additive, at constant volume fraction of the solid additive.

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Filler (materials)

Fillers are particles added to material (plastics, composite material, concrete) to lower the consumption of more expensive binder material or to better some properties of the mixtured material.

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Flow velocity

In continuum mechanics the macroscopic velocity, also flow velocity in fluid dynamics or drift velocity in electromagnetism, is a vector field used to mathematically describe the motion of a continuum.

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Fluid

In physics, a fluid is a substance that continually deforms (flows) under an applied shear stress.

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Fluid dynamics

In physics and engineering, fluid dynamics is a subdiscipline of fluid mechanics that describes the flow of fluids - liquids and gases.

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Fluid mechanics

Fluid mechanics is a branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them.

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Food additive

Food additives are substances added to food to preserve flavor or enhance its taste, appearance, or other qualities.

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Food rheology

Food rheology is the study of the rheological properties of food, that is, the consistency and flow of food under tightly specified conditions.

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Food science

Food science is the applied science devoted to the study of food.

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Force

In physics, a force is any interaction that, when unopposed, will change the motion of an object.

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Gel

A gel is a solid jelly-like material that can have properties ranging from soft and weak to hard and tough.

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Geophysics

Geophysics is a subject of natural science concerned with the physical processes and physical properties of the Earth and its surrounding space environment, and the use of quantitative methods for their analysis.

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Glass transition

The glass–liquid transition, or glass transition, is the gradual and reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials), from a hard and relatively brittle "glassy" state into a viscous or rubbery state as the temperature is increased.

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Granite

Granite is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.

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Granular material

A granular material is a conglomeration of discrete solid, macroscopic particles characterized by a loss of energy whenever the particles interact (the most common example would be friction when grains collide).

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Hematocrit

The hematocrit (Ht or HCT), also known by several other names, is the volume percentage (vol%) of red blood cells in blood.

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Hemorheology

Hemorheology, also spelled haemorheology (from the Greek ‘αἷμα, haima "blood" and rheology), or blood rheology, is the study of flow properties of blood and its elements of plasma and cells.

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Heraclitus

Heraclitus of Ephesus (Hērákleitos ho Ephésios) was a pre-Socratic Greek philosopher, and a native of the city of Ephesus, then part of the Persian Empire.

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Hydrolysis

Hydrolysis is a term used for both an electro-chemical process and a biological one.

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Inertia

Inertia is the resistance of any physical object to any change in its position and state of motion.

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Interdisciplinarity

Interdisciplinarity or interdisciplinary studies involves the combining of two or more academic disciplines into one activity (e.g., a research project).

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Inviscid flow

Inviscid flow is the flow of an inviscid fluid, in which the viscosity of the fluid is equal to zero.

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Isaac Newton

Sir Isaac Newton (25 December 1642 – 20 March 1726/27) was an English mathematician, astronomer, theologian, author and physicist (described in his own day as a "natural philosopher") who is widely recognised as one of the most influential scientists of all time, and a key figure in the scientific revolution.

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Kelvin–Voigt material

A Kelvin–Voigt material, also called a Voigt material, is a viscoelastic material having the properties both of elasticity and viscosity.

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Ketchup

Ketchup (also catsup) is a condiment.

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Lafayette College

Lafayette College is a private liberal arts college based in Easton, Pennsylvania, with a campus in New York City, New York.

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Laminar flow

In fluid dynamics, laminar flow (or streamline flow) occurs when a fluid flows in parallel layers, with no disruption between the layers.

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Lava

Lava is molten rock generated by geothermal energy and expelled through fractures in planetary crust or in an eruption, usually at temperatures from.

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Liquid

A liquid is a nearly incompressible fluid that conforms to the shape of its container but retains a (nearly) constant volume independent of pressure.

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List of rheologists

This is a list of notable rheologists.

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Markus Reiner

Markus Reiner (מרכוס ריינר, born 5 January 1886, died 25 April 1976) was an Israeli scientist and a major figure in rheology.

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Materials science

The interdisciplinary field of materials science, also commonly termed materials science and engineering is the design and discovery of new materials, particularly solids.

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Maxwell material

A Maxwell material is a viscoelastic material having the properties both of elasticity and viscosity.

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Mechanical engineering

Mechanical engineering is the discipline that applies engineering, physics, engineering mathematics, and materials science principles to design, analyze, manufacture, and maintain mechanical systems.

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Mechanical equilibrium

In classical mechanics, a particle is in mechanical equilibrium if the net force on that particle is zero.

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Medicine

Medicine is the science and practice of the diagnosis, treatment, and prevention of disease.

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Microrheology

Microrheology is a technique used to measure the rheological properties of a medium, such as microviscosity, via the measurement of the trajectory of a flow tracer (a micrometre-sized particle).

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Molecule

A molecule is an electrically neutral group of two or more atoms held together by chemical bonds.

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Mortar (masonry)

Mortar is a workable paste used to bind building blocks such as stones, bricks, and concrete masonry units together, fill and seal the irregular gaps between them, and sometimes add decorative colors or patterns in masonry walls.

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Mud

Mud is a liquid or semi-liquid mixture of water and any combination of different kinds of soil (loam, silt, and clay).

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Natural gum

Natural gums are polysaccharides of natural origin, capable of causing a large increase in a solution’s viscosity, even at small concentrations.

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Natural rubber

Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds, plus water.

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Newtonian fluid

In continuum mechanics, a Newtonian fluid is a fluid in which the viscous stresses arising from its flow, at every point, are linearly proportional to the local strain rate—the rate of change of its deformation over time.

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Non-Newtonian fluid

A non-Newtonian fluid is a fluid that does not follow Newton's law of viscosity.

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Optics

Optics is the branch of physics which involves the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it.

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Paint

Paint is any liquid, liquefiable, or mastic composition that, after application to a substrate in a thin layer, converts to a solid film.

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Pectin

Pectin (from πηκτικός, "congealed, curdled") is a structural heteropolysaccharide contained in the primary cell walls of terrestrial plants.

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Personal care

Personal care or toiletries are consumer products used in personal hygiene and for beautification.

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Pharmaceutics

Pharmaceutics is the discipline of pharmacy that deals with the process of turning a new chemical entity (NCE) or old drugs into a medication to be used safely and effectively by patients.

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Physics

Physics (from knowledge of nature, from φύσις phýsis "nature") is the natural science that studies matterAt the start of The Feynman Lectures on Physics, Richard Feynman offers the atomic hypothesis as the single most prolific scientific concept: "If, in some cataclysm, all scientific knowledge were to be destroyed one sentence what statement would contain the most information in the fewest words? I believe it is that all things are made up of atoms – little particles that move around in perpetual motion, attracting each other when they are a little distance apart, but repelling upon being squeezed into one another..." and its motion and behavior through space and time and that studies the related entities of energy and force."Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, and its main goal is to understand how the universe behaves."Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physics. (...) You will come to see physics as a towering achievement of the human intellect in its quest to understand our world and ourselves."Physics is an experimental science. Physicists observe the phenomena of nature and try to find patterns that relate these phenomena.""Physics is the study of your world and the world and universe around you." Physics is one of the oldest academic disciplines and, through its inclusion of astronomy, perhaps the oldest. Over the last two millennia, physics, chemistry, biology, and certain branches of mathematics were a part of natural philosophy, but during the scientific revolution in the 17th century, these natural sciences emerged as unique research endeavors in their own right. Physics intersects with many interdisciplinary areas of research, such as biophysics and quantum chemistry, and the boundaries of physics are not rigidly defined. New ideas in physics often explain the fundamental mechanisms studied by other sciences and suggest new avenues of research in academic disciplines such as mathematics and philosophy. Advances in physics often enable advances in new technologies. For example, advances in the understanding of electromagnetism and nuclear physics led directly to the development of new products that have dramatically transformed modern-day society, such as television, computers, domestic appliances, and nuclear weapons; advances in thermodynamics led to the development of industrialization; and advances in mechanics inspired the development of calculus.

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Physiology

Physiology is the scientific study of normal mechanisms, and their interactions, which work within a living system.

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Plasticity (physics)

In physics and materials science, plasticity describes the deformation of a (solid) material undergoing non-reversible changes of shape in response to applied forces.

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Platelet

Platelets, also called thrombocytes (from Greek θρόμβος, "clot" and κύτος, "cell"), are a component of blood whose function (along with the coagulation factors) is to react to bleeding from blood vessel injury by clumping, thereby initiating a blood clot.

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Polymer

A polymer (Greek poly-, "many" + -mer, "part") is a large molecule, or macromolecule, composed of many repeated subunits.

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Polysaccharide

Polysaccharides are polymeric carbohydrate molecules composed of long chains of monosaccharide units bound together by glycosidic linkages, and on hydrolysis give the constituent monosaccharides or oligosaccharides.

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Protein

Proteins are large biomolecules, or macromolecules, consisting of one or more long chains of amino acid residues.

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Ratio

In mathematics, a ratio is a relationship between two numbers indicating how many times the first number contains the second.

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Red blood cell

Red blood cells-- also known as RBCs, red cells, red blood corpuscles, haematids, erythroid cells or erythrocytes (from Greek erythros for "red" and kytos for "hollow vessel", with -cyte translated as "cell" in modern usage), are the most common type of blood cell and the vertebrate's principal means of delivering oxygen (O2) to the body tissues—via blood flow through the circulatory system.

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Refractory

A refractory mineral is a mineral that is resistant to decomposition by heat, pressure, or chemical attack.

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Reynolds number

The Reynolds number is an important dimensionless quantity in fluid mechanics used to help predict flow patterns in different fluid flow situations.

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Rheid

A rheid is a substance whose temperature is below the melting point and whose deformation by viscous flow during the time of observation is at least three orders of magnitude (1,000×) greater than the elastic deformation under the given conditions.

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Rheological weldability

Rheological weldability (RW) is proposed as a criterion to determine reliably weldability of thermoplastics.

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Rheometer

A rheometer is a laboratory device used to measure the way in which a liquid, suspension or slurry flows in response to applied forces.

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Rheometry

Rheometry (from the Greek ῥέος – rheos, ''n'', meaning "stream") generically refers to the experimental techniques used to determine the rheological properties of materials, that is the quantitative and qualitative relationships between deformations and stresses and their derivatives.

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Rheopecty

Rheopecty or rheopexy is the rare property of some non-Newtonian fluids to show a time-dependent increase in viscosity (time-dependent viscosity); the longer the fluid undergoes shearing force, the higher its viscosity.

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Sensor

In the broadest definition, a sensor is a device, module, or subsystem whose purpose is to detect events or changes in its environment and send the information to other electronics, frequently a computer processor.

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Shear stress

A shear stress, often denoted by (Greek: tau), is the component of stress coplanar with a material cross section.

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Silicone

Silicones, also known as polysiloxanes, are polymers that include any inert, synthetic compound made up of repeating units of siloxane, which is a chain of alternating silicon atoms and oxygen atoms, combined with carbon, hydrogen, and sometimes other elements.

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Silly Putty

Silly Putty is a toy based on silicone polymers that have unusual physical properties.

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Similitude (model)

Similitude is a concept applicable to the testing of engineering models.

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Simplicius of Cilicia

Simplicius of Cilicia (Σιμπλίκιος ὁ Κίλιξ; c. 490 – c. 560) was a disciple of Ammonius Hermiae and Damascius, and was one of the last of the Neoplatonists.

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Sludge

Sludge is a semi-solid slurry and can be produced as sewage sludge from wastewater treatment processes or as a settled suspension obtained from conventional drinking water treatment and numerous other industrial processes.

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Soft matter

Soft matter or soft condensed matter is a subfield of condensed matter comprising a variety of physical systems that are deformed or structurally altered by thermal or mechanical stress of the magnitude of thermal fluctuations.

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Sol (colloid)

A sol is a colloidal solution suspension of very small solid particles in a continuous liquid medium.

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Sol–gel process

In materials science, the sol–gel process is a method for producing solid materials from small molecules.

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Solid

Solid is one of the four fundamental states of matter (the others being liquid, gas, and plasma).

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Solid mechanics

Solid mechanics is the branch of continuum mechanics that studies the behavior of solid materials, especially their motion and deformation under the action of forces, temperature changes, phase changes, and other external or internal agents.

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Space Shuttle Challenger

Space Shuttle Challenger (Orbiter Vehicle Designation: OV-099) was the second orbiter of NASA's space shuttle program to be put into service, after ''Columbia''.

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Space Shuttle Solid Rocket Booster

The Space Shuttle Solid Rocket Boosters (SRBs) were the first solid fuel motors to be used for primary propulsion on a vehicle used for human spaceflight and provided the majority of the Space Shuttle's thrust during the first two minutes of flight.

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Starch

Starch or amylum is a polymeric carbohydrate consisting of a large number of glucose units joined by glycosidic bonds.

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Strain rate

Strain rate is the change in strain (deformation) of a material with respect to time.

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Strength of materials

Strength of materials, also called mechanics of materials, is a subject which deals with the behavior of solid objects subject to stresses and strains.

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Stress (mechanics)

In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighboring particles of a continuous material exert on each other, while strain is the measure of the deformation of the material.

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Superplasticizer

Superplasticizers, also known as high range water reducers, are chemical admixtures used where well-dispersed particle suspension is required.

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Surface finishing

Surface finishing is a broad range of industrial processes that alter the surface of a manufactured item to achieve a certain property.

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Suspension (chemistry)

In chemistry, a suspension is a heterogeneous mixture that contains solid particles sufficiently large for sedimentation.

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Synaeresis

In linguistics, synaeresis (also spelled syneresis) is a phonological process of sound change in which two adjacent vowels within a word are combined into a single syllable.

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Thermal insulation

Thermal insulation is the reduction of heat transfer (i.e. the transfer of thermal energy between objects of differing temperature) between objects in thermal contact or in range of radiative influence.

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Thickening agent

A thickening agent or thickener is a substance which can increase the viscosity of a liquid without substantially changing its other properties.

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Thixotropy

Thixotropy is a time-dependent shear thinning property.

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Transport phenomena

In engineering, physics and chemistry, the study of transport phenomena concerns the exchange of mass, energy, charge, momentum and angular momentum between observed and studied systems.

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Turbulence

In fluid dynamics, turbulence or turbulent flow is any pattern of fluid motion characterized by chaotic changes in pressure and flow velocity.

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Viscoelasticity

Viscoelasticity is the property of materials that exhibit both viscous and elastic characteristics when undergoing deformation.

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Viscosity

The viscosity of a fluid is the measure of its resistance to gradual deformation by shear stress or tensile stress.

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Vitreous body

The vitreous body is the clear gel that fills the space between the lens and the retina of the eyeball of humans and other vertebrates.

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White blood cell

White blood cells (WBCs), also called leukocytes or leucocytes, are the cells of the immune system that are involved in protecting the body against both infectious disease and foreign invaders.

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Yield (engineering)

The yield point is the point on a stress–strain curve that indicates the limit of elastic behavior and the beginning of plastic behavior.

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Yogurt

Yogurt, yoghurt, or yoghourt (or; from yoğurt; other spellings listed below) is a food produced by bacterial fermentation of milk.

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References

[1] https://en.wikipedia.org/wiki/Rheology

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