Synonyms containing tube of toothpaste
We've found 1,750 synonyms:
|Test tube holder|
Test tube holder
A test tube holder is used to hold test tubes. It is used for holding a test tube in place when the tube is hot or should not be touched. For example, a test tube holder can be used to hold a test tube while it is being heated. Moreover, when heating the tube with liquid or solid contained inside, the tube holder ought to tightly hold a test tube in order for the tube to be safely held while heating.Particularly, for liquid heating, when holding a test tube holder with a test tube, hold it such that it aligns with the lab bench and also point the open end of the tube away from yourself or anyone nearby. Additionally, while using a test tube holder, the proper distance between the test tube holder and the top of the test tube is approximately 3 centimetres.
Gleem was a brand of toothpaste made by the Procter & Gamble company. It was discontinued in 2014. Procter & Gamble now markets the Gleem formulation under the brand name Crest Fresh and White. Advertisements in the 1950s stated that it has GL-70, a supposed odor- and bacteria-fighting compound. Gleem was introduced in 1952 as a competitor to top Colgate's then top Dental Cream, with advertising coordinated by Compton Advertising, Inc. The League Against Obnoxious TV Commercials included a Gleem toothpaste commercial in its list of the terrible 10 in May 1963. In 1958 Gleem had become number two in top toothpastes, with Colgate still first in sales and Crest in third place. By 1969, Gleem was a declining brand name. In an effort to obtain additional sales, Procter & Gamble assigned the account to the firm of Mary Wells Lawrence, Wells, Rich, Greene.When Gleem II with fluoride and "green sparkles" was introduced within several years, the brand achieved a 9% share of the toothpaste market. However, this portion declined to around 6% with the introduction of new competing brands. Gleem's main decline was promotion geared toward its take-over competitor, Crest. The difference between Gleem and Crest is Gleem was strictly a 'toothpaste' and originally contained no fluoride. Fluoride was later introduced into Gleem after Crest was first sold in 1955, as a form of consumer competition. While Gleem remained a toothpaste, Crest advanced into flavored 'pastes,' 'gels,' and so on. Until its discontinuance, the Gleem toothpaste package stated 'CONTAINS NO SUGAR' in bold print. Crest has been known to carry increments of sugar as well as artificial flavoring and coloring, aimed at coaxing young children and preteen enticement to prompt oral hygiene. In 1963, Gleem carried a 17-percent share of the toothpaste market in third place, with an advertising budget at $7.1 million. Gleem continued to become less prevalent when the American Dental Association granted Crest approval for the ADA logo. In addition, Crest contains stannous fluoride which has been said to strengthen and protect tooth enamel, calcium and fight gingivitis and bacterial infection, but is often irritant, abrasive and stains, while sodium fluoride (contained in Gleem) is more gentle, does not stain, but requires more application (longer or more brushings) to further prevent bacterial infections and can have little effect with calcium. In 1975, Gleem was supported by $6 million in television advertising alone. In August 1976, Procter & Gamble transferred Gleem from Wells, Rich, Greene to the Leo Burnett Company of Chicago, Illinois.
Toothpaste is a paste or gel dentifrice used with a toothbrush as an accessory to clean and maintain the aesthetics and health of teeth. Toothpaste is used to promote oral hygiene: it serves as an abrasive that aids in removing the dental plaque and food from the teeth, assists in suppressing halitosis, and delivers active ingredients to help prevent tooth and gum disease. Most of the cleaning is achieved by the mechanical action of the toothbrush, and not by the toothpaste. Salt and sodium bicarbonate are among materials that can be substituted for commercial toothpaste. Toothpaste is not intended to be swallowed, but is generally not very harmful if accidentally swallowed in small amounts; however, one should seek medical attention after swallowing toothpaste containing fluoride.
tūb, n. a pipe: a long hollow cylinder for the conveyance of fluids, &c.: a canal: the body of a musical instrument: a telescope: a cylindrical receptacle for holding semi-fluid substances, as pigments.—v.t. to furnish with, enclose in, a tube.—n. Tū′bage, the act or process of lining a heavy gun by insertion of a tube of wrought-iron, &c.: (med.) the insertion of a tube into the larynx, &c.—adjs. Tū′bal, Tū′bar.—n. Tube′-well, a pipe used to obtain water from beneath the ground, having a sharp point and a number of perforations just above the point.—adjs. Tubic′olar, Tū′bicole, Tubic′olous, inhabiting a tube: spinning a tubular web; Tū′biflorous, having tubular flowers; Tū′biform, shaped like a tube.—n. Tū′bing, the act of making tubes: tubes collectively: material for tubes.—adjs. Tū′būlar, having the form of a tube: having a sound like that made by the passage of air through a tube; Tūbūlā′rian, hydriform in tubular shape with wide disc; Tū′būlate, -d, Tū′būlous, Tū′būlose, formed like a tube: formed of tubes.—n. Tū′būle, a small tube.—adj. Tū′būliform, having the form of a small tube. [Fr.,—L. tubus, a pipe.]
— Chambers 20th Century Dictionary
The neural groove is a shallow median groove of the neural plate between the neural folds of an embryo. The neural plate is a thick sheet of ectoderm surrounded on either side by the neural folds, two longitudinal ridges in front of the primitive streak of the developing embryo.The groove gradually deepens as the neural folds become elevated, and ultimately the folds meet and coalesce in the middle line and convert the groove into a closed tube, the neural tube or canal, the ectodermal wall of which forms the rudiment of the nervous system. After the coalescence of the neural folds over the anterior end of the primitive streak, the blastopore no longer opens on the surface but into the closed canal of the neural tube, and thus a transitory communication, the neurenteric canal, is established between the neural tube and the primitive digestive tube. The coalescence of the neural folds occurs first in the region of the hind-brain, and from there extends forward and backward; toward the end of the third week the front opening (anterior neuropore) of the tube finally closes at the anterior end of the future brain, and forms a recess which is in contact, for a time, with the overlying ectoderm; the hinder part of the neural groove presents for a time a rhomboidal shape, and to this expanded portion the term sinus rhomboidalis has been applied. Before the neural groove is closed a ridge of ectodermal cells appears along the prominent margin of each neural fold; this is termed the neural crest or ganglion ridge, and from it the spinal and cranial nerve ganglia and the ganglia of the sympathetic nervous system are developed. By the upward growth of the mesoderm the neural tube is ultimately separated from the overlying ectoderm. The cephalic end of the neural groove exhibits several dilatations, which, when the tube is closed, assume the form of three vesicles; these constitute the three primary cerebral vesicles, and correspond respectively to the future fore-brain (prosencephalon), mid-brain (mesencephalon), and hind-brain (rhombencephalon). The walls of the vesicles are developed into the nervous tissue and neuroglia of the brain, and their cavities are modified to form its ventricles. The remainder of the tube forms the medulla spinalis or spinal cord; from its ectodermal wall the nervous and neuroglial elements of the medulla spinalis are developed while the cavity persists as the central canal.
In electronics, a Dekatron (or Decatron, or generically three-phase gas counting tube or glow-transfer counting tube or cold cathode tube) is a gas-filled decade counting tube. Dekatrons were used in computers, calculators and other counting-related products during the 1950s and 1960s. "Dekatron," now a generic trademark, was the brand name used by Ericsson Telephones Limited (ETL), of Beeston, Nottingham (not to be confused with the Swedish TelefonAB Ericsson of Stockholm). The dekatron was useful for computing, calculating and frequency-dividing purposes because one complete revolution of the neon dot in a dekatron means 10 pulses on the guide electrode(s), and a signal can be derived from one of the ten cathodes in a dekatron to send a pulse, possibly for another counting stage. Dekatrons usually have a maximum input frequency in the high kilohertz (kHz) range – 100 kHz is fast, 1 MHz is around the maximum possible. These frequencies are obtained in hydrogen-filled fast dekatrons. Dekatrons filled with inert gas are inherently more stable and have a longer life, but their counting frequency is limited to 10 kHz (1–2 kHz is more common). Internal designs vary by the model and manufacturer, but generally a dekatron has ten cathodes and one or two guide electrodes plus a common anode. The cathodes are arranged in a circle with a guide electrode (or two) between each cathode. When the guide electrode(s) is pulsed properly, the neon gas will activate near the guide pins then "jump" to the next cathode. Pulsing the guide electrodes (negative going pulses) repeatedly will cause the neon dot to move from cathode to cathode. Hydrogen dekatrons require high voltages ranging from 400 to 600 volts on the anode for proper operation; dekatrons with inert gas usually require ~350 volts. When a dekatron is first powered up, a glowing dot appears at a random cathode; the tube must then be reset to zero state, by driving a negative pulse into the designated starting cathode. The color of the dot depends on the type of gas that is in the tube. Neon-filled tubes display a red-orange dot; argon-filled tubes display a purple dot (and are much dimmer than neon). Counter (common-cathode) dekatrons have only one carry/borrow cathode wired to its own socket pin for multistage cascading and the remaining nine cathodes tied together to another pin; therefore they don't need bases with more than 9 pins. Counter/Selector (separate-cathode) dekatrons have each cathode wired to its own pin; therefore their bases have at least 13 pins. Selectors allow for monitoring the status of each cathode or to divide-by-n with the proper reset circuitry. This kind of versatility made such dekatrons useful for numerical division in early calculators. Dekatrons come in various physical sizes, ranging from smaller than a 7-pin miniature vacuum tube to as large as an octal base tube. While most dekatrons are decimal counters, models were also made to count in base-5 and base-12 for specific applications. The dekatron fell out of practical use when transistor-based counters became reliable and affordable. Today, dekatrons are used by electronic hobbyists in simple "spinners" that run off the mains frequency (50 Hz or 60 Hz) or as a numeric indicator for homemade clocks.
Draft Tube is a diverging tube fitted at the exit of runner of turbine and used to utilize the kinetic energy available with water at the exit of runner. '.This draft tube at the end of the turbine increases the pressure of the exiting fluid at the expense of its velocity. This means that the turbine can reduce pressure to a higher extent without fear of back flow from the tail race. In an impulse turbine the available head is high and there is no significant effect on the efficiency if the turbine is placed a couple of meters above the tail race. But in the case of reaction turbines, if the net head is low and if the turbine is installed above the tail race, there can be appreciable loss in available pressure head to power the turbine. Also, if the pressure of the fluid in the tail race is higher than at the exit of the turbine, a back flow of liquid into the turbine can result in significant damage. By placing a draft tube (also called a diffuser tube or pipe) at the exit of the turbine, the turbine pressure head is increased by decreasing the exit velocity, and both the overall efficiency and the output of the turbine can be improved. The draft tube works by converting some of the kinetic energy at the exit of the turbine runner into the useful pressure energy.Using a draft tube also has the advantages of placing the turbine structure above the tail race so that any required inspections can be made more easily and reducing the amount of excavation required for construction.
A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top, usually with a rounded U-shaped bottom. A large test tube designed specifically for boiling liquids is called a boiling tube. Test tubes are available in a multitude of lengths and widths, typically from 10 to 20 mm wide and 50 to 200 mm long. The top often features a flared lip to aid pouring out the contents; some sources consider that the presence of a lip is what distinguishes a test tube from a culture tube. A test tube has either a flat bottom, a round bottom, or a conical bottom. Some test tubes are made to accept a ground glass stopper or a screw cap. They are often provided with a small ground glass or white glaze area near the top for labeling with a pencil.
In gunnery, consists of a short tube of metal inserted into a hole near the top of a larger tube, and soldered in that position. The short tube is lined with a composition made by mixing together one part of chlorate of potassa and two of sulphuret of antimony, formed into a paste with gum-water. A serrated wire passes through the short tube and hole opposite to it in the side of the long one, the open end of the short tube being compressed with nippers, and the wire at the end of the serrated part doubled under to prevent displacement. The other end of the wire is doubled and twisted by machinery. The long tube is filled with rifle-powder, its upper end being covered with shellac-varnish blackened with lamp-black, and its lower end closed with shoemaker’s wax and dipped into varnish. One great advantage of the friction tube is that it gives an enemy at night no clue to the position of a piece as does the lighted port-fire or slow-match.
— Military Dictionary and Gazetteer
A "blob of toothpaste shaped like a wave", which is often depicted on toothpaste packaging.
A Nixie tube is an electronic device for displaying numerals or other information using glow discharge. The glass tube contains a wire-mesh anode and multiple cathodes, shaped like numerals or other symbols. Applying power to one cathode surrounds it with an orange glow discharge. The tube is filled with a gas at low pressure, usually mostly neon and often a little mercury or argon, in a Penning mixture. Although it resembles a vacuum tube in appearance, its operation does not depend on thermionic emission of electrons from a heated cathode. It is therefore called a cold-cathode tube, or a variant of neon lamp. Such tubes rarely exceed 40 °C even under the most severe of operating conditions in a room at ambient temperature. The most common form of Nixie tube has ten cathodes in the shapes of the numerals 0 to 9, but there are also types that show various letters, signs and symbols. Because the numbers and other characters are arranged one behind another, each character appears at a different depth, giving Nixie based displays a distinct appearance. A related device is the pixie tube, which uses a stencil mask with numeral-shaped holes instead of shaped cathodes. Some Russian Nixies, e.g. the IN-14, used an upside-down digit 2 as the digit 5, presumably to save manufacturing costs as there is no obvious technical or aesthetic reason.
|Clear Catheter Systems|
Clear Catheter Systems
Clear Catheter Systems is a Bend, Oregon based medical device company pioneering new technologies that will revolutionize medical tube drainage. The company is developing its anti-clogging platform of surgical drainage devices. The company's lead product is the PleuraFlowÂ® Active Tube Clearance™ System. By solving the clogging problem the company's products will allow doctors to manage bleeding and clogging in large diameter chest tubes in a safer fashion. A further benefit is that surgeons will be able to utilize minimally invasive drainage tubes, resulting in a reduction in concern for clogging and increased patient comfort. The company has a pipeline of products based on its proprietary tube clearance technology to treat tube clogging in other medical market segments, including its system for the urinary catheter drainage market, and GastroFlow catheter system, for the enteral feeding market sector as well as systems for standard surgical drains.
Autofrettage is a metal cold forming technique in which a pressure vessel is subjected to enormous pressure, causing internal portions of the part to yield plastically, resulting in internal compressive residual stresses once the pressure is released. The goal of autofrettage is to increase the durability of the final product. Inducing residual compressive stresses into materials can also increase their resistance to stress corrosion cracking; that is, non-mechanically-assisted cracking that occurs when a material is placed in a corrosive environment in the presence of tensile stress. The technique is commonly used in manufacture of high-pressure pump cylinders, warship and tank gun barrels, and fuel injection systems for diesel engines. While autofrettage will induce some work hardening, that is not the primary mechanism of strengthening. The start point is a single steel tube of internal diameter slightly less than the desired calibre. The tube is subjected to internal pressure of sufficient magnitude to enlarge the bore and in the process the inner layers of the metal are stretched in tension beyond their elastic limit. This means that the inner layers have been stretched to a point where the steel is no longer able to return to its original shape once the internal pressure has been removed. Although the outer layers of the tube are also stretched, the degree of internal pressure applied during the process is such that they are not stretched beyond their elastic limit. The reason why this is possible is that the stress distribution through the walls of the tube is non-uniform. Its maximum value occurs in the metal adjacent to the source of pressure, decreasing markedly towards the outer layers of the tube. The strain is proportional to the stress applied within the elastic limit; therefore the expansion at the outer layers is less than at the bore. Because the outer layers remain elastic they attempt to return to their original shape; however, they are prevented from doing so completely by the new permanently stretched inner layers. The effect is that the inner layers of the metal are put under compression by the outer layers in much the same way as though an outer layer of metal had been shrunk on as with a built-up gun. The next step is to subject the compressively strained inner layers to a low-temperature heat treatment which results in the elastic limit being raised to at least the autofrettage pressure employed in the first stage of the process. Finally, the elasticity of the barrel can be tested by applying internal pressure once more, but this time care is taken to ensure that the inner layers are not stretched beyond their new elastic limit. The end result is an inner surface of the gun barrel with a residual compressive stress able to counterbalance the tensile stress that would be induced when the gun is discharged. In addition the material has a higher tensile strength as a result of the heat treatment process.In early practice of autofrettage of a gun barrel, the barrel was pressurized hydraulically. In modern practice, a slightly oversized die is pushed slowly through the barrel by a hydraulically driven ram. The amount of initial underbore and oversize of the die are calculated to strain the material around the bore past its elastic limit into plastic deformation. A residual compressive stress remains on the barrel's inner surface, even after final honing and rifling. The technique has been applied to the expansion of tubular components down hole in oil and gas wells. The method has been patented by the Norwegian oil service company, Meta, which uses it to connect concentric tubular components with sealing and strength properties outlined above. The term autofrettage is also used to describe a step in manufacturing of composite overwrapped pressure vessel (COPV) where the liner is expanded (by plastic deformation), inside the composite overwrap.
The meniscus is the curve in the upper surface of a liquid close to the surface of the container or another object, caused by surface tension. It can be either convex or concave. A convex meniscus occurs when the molecules have a stronger attraction to each other than to the material of the container. This may be seen between mercury and glass in barometers and thermometers. Conversely, a concave meniscus occurs when the molecules of the liquid attract those of the container's, causing the surface of the liquid to cave downwards. This can be seen in a glass of water. Capillary action acts on concave menisci to pull the liquid up, increasing favorable contact area between liquid and container, and on convex menisci to pull the liquid down, reducing the amount of contact area. This phenomenon is important in transpirational pull in plants. Honey, water, milk etc. have a lower meniscus. When a tube of a narrow bore, often called a capillary tube, is dipped into a liquid and the liquid wets the tube, the liquid surface inside the tube forms a concave meniscus, which is a virtually spherical surface having the same radius, r, as the inside of the tube. The tube experiences a downward force of magnitude 2πrdσ.
The Eustachian tube, also auditory tube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear. In adult humans the Eustachian tube is approximately 35 mm long. It is named after the sixteenth-century anatomist Bartolomeo Eustachi. Some modern medical books call this the pharyngotympanic tube.