What's the difference between buoyancy and caisson?

Buoyancy


Definition:

  • (n.) The property of floating on the surface of a liquid, or in a fluid, as in the atmosphere; specific lightness, which is inversely as the weight compared with that of an equal volume of water.
  • (n.) The upward pressure exerted upon a floating body by a fluid, which is equal to the weight of the body; hence, also, the weight of a floating body, as measured by the volume of fluid displaced.
  • (n.) Cheerfulness; vivacity; liveliness; sprightliness; -- the opposite of heaviness; as, buoyancy of spirits.

Example Sentences:

  • (1) And with our prayers and our love, and the buoyancy of hope, it will rise again now as a place of peace.
  • (2) Microbiologic examination of 29 juvenile green sea turtles with a buoyancy abnormality revealed pulmonary infection with Sporotrichium sp, Cladosporium sp, and Paecilomyces sp.
  • (3) Nevertheless, the buoyancy-mass relationship revealed that they maintain the same degree of positive buoyancy (approximately 10% above the neutral level) at surface as do Korean women divers who adjust counterweights.
  • (4) Morphological mutants of Caulobacter crescentus were isolated by selecting for cells that did not possess normal, buoyancy-conferring stalks.
  • (5) preparations composed of a directly compressed layer and a chitosan H membrane layer enclosing carbon dioxide (a foamy membrane layer), quickly developed buoyancy and also provided sustained release of drug.
  • (6) Plasma from these patients could induce an in vitro decrease of buoyancy in neutrophils with normal buoyant density.
  • (7) The lipid components of porpoise lipokeratinocytes appear to subserve not only barrier function in a hypertonic milieu, but also underlie the unique buoyancy, streamlining, insulatory, and caloric properties exhibited as adaptations to the cetacean habitat.
  • (8) Buoyancy was evaluated by the hydrostatic lift (HL), i.e., the maximal weight just necessary to maintain the swimmer in a balanced position under the water after a maximal inspiration.
  • (9) The Cs depends on performance level, body size, buoyancy, swimming technique and v.
  • (10) This "body density probe" carries several measuring rods of different diameter on its upper end, which lead to an increase of buoyancy when sinking deeper into the water after additional weights have been put on the device.
  • (11) However, vertical movements and gas-spitting responses indicated a possible hypothalamic control of buoyancy.
  • (12) From the experimental and analytical results, we conclude that, for this deformation, the regional volume-local transpulmonary pressure curve closely follows the pressure-volume curve because negative horizontal strains nearly balance the positive vertical strain caused by the buoyancy force.
  • (13) The full story here: U.S. consumer sentiment unexpectedly falls in November 3.00pm GMT Markets round-up Stock markets are digesting the much stronger-than-expected US non-farm payrolls numbers for October with traders trying to decide whether to buy on economic buoyancy or sell on the prospect of the Federal Reserve tapering its stimulus programme sooner rather than later.
  • (14) In contrast to our previous studies on the submersion of scuba divers in a state of neutral buoyancy, neither plasma beta-endorphin-like immunoreactivity (beta-EIR) nor affective feelings were significantly changes in scuba divers by mimicking diving pressures of 2 feet (0.6 m) and 50 feet (15.2 m) for 20 min in a hyperbaric chamber.
  • (15) Plasma beta-EIR was measured by radioimmunoassay in male scuba divers before and immediately after remaining motionless 10 ft under water in a state of neutral buoyancy.
  • (16) Archimedes' law of buoyancy has been extended to the preoperative bedside assessment of volume differences between breasts, whatever their cause.
  • (17) The specific gravity and buoyancy of 98 men were calculated at various lung volumes.
  • (18) The volume changes of hardening cements are measured with the buoyancy method.
  • (19) And if one will hold on, he will discover that God walks with him, and that God is able to lift you from the fatigue of despair to the buoyancy of hope, and transform dark and desolate valleys into sunlit paths of inner peace.” Reverend Pinckney and his congregation understood that spirit.
  • (20) Anatomic features of the pericardium and its fibrous attachments, and the physical principle of buoyancy account for this observation.

Caisson


Definition:

  • (n.) A chest to hold ammunition.
  • (n.) A four-wheeled carriage for conveying ammunition, consisting of two parts, a body and a limber. In light field batteries there is one caisson to each piece, having two ammunition boxes on the body, and one on the limber.
  • (n.) A chest filled with explosive materials, to be laid in the way of an enemy and exploded on his approach.
  • (n.) A water-tight box, of timber or iron within which work is carried on in building foundations or structures below the water level.
  • (n.) A hollow floating box, usually of iron, which serves to close the entrances of docks and basins.
  • (n.) A structure, usually with an air chamber, placed beneath a vessel to lift or float it.
  • (n.) A sunk panel of ceilings or soffits.

Example Sentences:

  • (1) We describe an operating table in which the whole patient, apart from the eye undergoing surgery, is enclosed in a caisson within which the barometric pressure can be lowered at any time during surgery.
  • (2) Pneumatic caisson work in Japan has been in operation since 1924.
  • (3) On bed rest days 3, 7 and 14 the following rheological and hemodynamic parameters were measured: blood dynamic viscosity, Caisson viscosity, yield limit, red blood cell aggregation, stroke volume, cardiac output, and total peripheral resistance.
  • (4) Investigations into the etiology of caisson disease of bone have shown evidence for an increase in marrow fat cell size resulting from hyperoxia.
  • (5) So unmanned caisson work is considered as a better technique for such high pressure work, even though people must enter into hyperbaric working fields for maintenance or repair of unmanned operated machinery and materials.
  • (6) Compressed air works have been used as the safest construction work for the basic underground or underwater compressed shield or caisson works in Japan; however, the workers who were exposed to the compressed fields must have put themselves at risk of decompression sickness.
  • (7) Accordingly unmanned caisson work is considered as a better technique for such higher pressurized work, even though workers must enter into hyperbaric working fields for maintenance or repair of unmanned operated machinery and materials.
  • (8) Nineteen caisson workers had been exposed to metallic mercury vapours while digging tubes underneath the first district of Vienna (exposure between 470 and 2440 min; mean 1621 min).
  • (9) According to obtain the purpose, the effect of respiratory protection has been investigated and work load under hyperbaric caisson work has also been studied.
  • (10) The results have confirmed a high informative value of the complex of parameters of rotational viscosimetry: the limit of blood fluidity, apparent blood viscosity, caisson viscosity of the blood, and the coefficient of erythrocyte cohesion (A) and of the parameters of aggregation of the formed elements of the blood, this complex allowing an objective differentiation between microcirculatory peculiarities in patients with initial manifestations of cerebral blood supply insufficiency (IMCBSI) versus patients with ischemic stroke (IS).
  • (11) Eleven Wistar rats were stimulated daily in a caisson and all stimulations were delivered after 30 min of diving at 3 ATA of air.
  • (12) A caisson worker with symmetrical bone infarcts in the tibiae demonstrated a malignant transformation of one of the bone infarcts with wide-spread metastases to the lungs and viscera.
  • (13) Discussed are coal miners' nystagmus, scrotal cancer in chimney sweeps, phossy jaw, hatters' shakes, painters' colic, potters' rot, chauffeurs' knee, glanders, caisson disease, and others.
  • (14) The caisson, drawn by six black horses, was the same vessel that in 1937 carried the coffin of Tomáš Garrigue Masaryk, Czechoslovakia's first president after the country was founded in 1918.
  • (15) Four of the patients had caisson disease, three had what is probably an hereditary bone dysplasia, one had sickle cell disease and eight had infarcts of unknown etiology.
  • (16) Pneumatic caisson work in Japan has come into operation since 1924.
  • (17) Extensive data concerning the incidence of decompression sickness among workers participating in the deepest caisson operation in Japan to date have been collected and analyzed for the period April through August, 1976.
  • (18) Progression of dysbaric osteonecrosis of the femoral and humeral heads was evaluated in 15 caisson workers.
  • (19) The number of exposures of workers was 23,737 in caisson work and 75,244 in shield work.
  • (20) Routine radiographs on Caisson workers have shown a rare form of osteopathy in the femoral neck due to decompression and which is not associated with symptoms.