(n.) An apparatus for measuring the amount of heat contained in bodies or developed by some mechanical or chemical process, as friction, chemical combination, combustion, etc.
(n.) An apparatus for measuring the proportion of unevaporated water contained in steam.
Example Sentences:
(1) The subjects were all apparently healthy, had a mean body weight of 66 kg and had spent the preceding day in the calorimeter performing different fixed physical activity programmes.
(2) The heat uptake that resulted from immersing the hand and wrist into a water-filled calorimeter maintained at temperatures between 37-40 degrees C was measured under standard conditions in a group of eight subjects of either sex.
(3) The indirect calorimeter system included an air-temperature-controlled chamber and heart rate monitor.
(4) The values of Ngas determined with the calorimeter are within 1% of Ngas calculated according to the AAPM protocol, using the 60Co exposure-calibration factor.
(5) A multifrequency calorimeter has been designed to measure the amplitude and time regime of the enthalpic fluctuations associated with structural or conformational transitions in biological macromolecular systems.
(6) The pigs were placed individually into an open-circuit, indirect calorimeter and connected to an arteriovenous (A-V) O2 difference analyzer for hourly simultaneous measurements of O2 consumption by W and PVDO.
(7) A calorimeter suitable for measuring human energy expenditure has been assembled by the US Department of Agriculture in Beltsville, Maryland.
(8) Thermopile heat conduction calorimeters normally have high time constants.
(9) It is essential to train each hen before a series of calorimeter experiments.
(10) Thermoregulatory sweating was minimized by adjusting cooling in the calorimeter suit.
(11) Mechanical efficiency during a step test was measured in chronically energy-deficient (CED) individuals and compared to well-nourished subjects using a whole-body indirect calorimeter.
(12) Their rate is comparable to the velocity of temperature change in a calorimeter, which is the cause of non-equilibrium effects in a calorimetric experiment.
(13) The intrinsic instrumental component is always present and its effect on the shape of the experimental curve depends on the magnitude of the calorimeter response time.
(14) Daily energy expenditure (determined in a whole room calorimeter) was significantly correlated with both fat-free mass (FFM) and aerobic fitness (estimated from maximum aerobic capacity or VO2max).
(15) A rapid-response stopped-flow calorimeter for small samples of reagents is described.
(16) A transportable, whole body indirect calorimeter, designed for use in the tropics, is described.
(17) The irreversible thermal denaturation of the association complexes of bovine beta-trypsin with soybean trypsin inhibitor or ovomucoid was observed with a differential scanning calorimeter.
(18) There were no differences (P greater than .05) in 8- to 24-h fasting O2 and CO2 measurements determined on d 16, 19, 20 and 21, indicating that adaptation to calorimeters was not needed by the pigs.
(19) The shape of the thermogram and the total heat output of aerobically growing cultures of Klebsiella aerogenes depend on the nature and state of the inoculum, the composition of the growth medium, aeration in the fermentor and in the calorimeter, and the pump rate of the culture through the microcalorimeter cell.
(20) The results showed no detectable heat defect in graphite after prolonged periods of exposing the calorimeter to air at atmospheric pressure.
Colorimeter
Definition:
(n.) An instrument for measuring the depth of the color of anything, especially of a liquid, by comparison with a standard liquid.
Example Sentences:
(1) The colorimeter output is several orders of magnitude above the lower limit of detection of the photon counter.
(2) An elution electrophoresis system in which a porous packed bed is used for separation and a flow photometer or colorimeter for continuous monitoring of the eluate may be capable of rapid, high-resolution analysis of serum proteins and other protein mixtures with very little manual labor.
(3) The results of the assay can be read either with a simple colorimeter or the naked eye.
(4) A simple vertical-beam colorimeter is described (useful in the Micro-SIA) which can be easily assembled by the user from commonly available components.
(5) The examination of each sample consisted of three parts: (1) apparent specific gravity analysis (porosity); (2) tristimulus colorimeter analysis; and (3) subjective observer color analysis.
(6) Micro colorimeters, equipped with appropriate interference filters and small-volume (2-8 mu 1) flow cells, are used as detectors.
(7) The Minolta tri-stimulus colorimeter CR-200 was used to quantify the blanching effect of topical corticosteroids in a non-occluded vasoconstriction test.
(8) In other rats, total protein concentration of peritubular capillary blood plasma was determined before, during, and after these same infusions with a newly described submicroliter fiber-optic colorimeter.
(9) The irritant skin response was quantified by visual scoring as well as by the following noninvasive methods: measurement of transepidermal water loss (TEWL) by an evaporimeter, measurement of skin color by a colorimeter, measurement of superficial blood flow by laser Doppler flowmetry, and measurement of edema in the skin by ultrasound A-scan.
(10) The following noninvasive measuring methods were used for evaluation of the skin before and after exposure to irritants: measurement of transepidermal water loss by an evaporimeter, measurement of electrical conductance by a hydrometer, measurement of skin blood flow by laser Doppler flowmetry, measurement of skin colour by a colorimeter and measurement of skin thickness by ultrasound A-scan.
(11) We designed and built a simple colorimeter that facilitated rapid direct visual comparison of unknown samples with known color standards.
(12) Using a Wright colorimeter the ordinary long-term, long-wave cone dark-adaptation curve was measured at 0, 2, 4, 7, 17, 25, 40 and 49 degrees nasally in the visual field.
(13) This paper describes a combined unit, consisting of an analog to digital converter and a personal computer, which was connected in parallel with the chart recorder and the analyser's 570 nm channel of the colorimeter.
(14) Divers were required to color match stimuli using either a Burnham-type colorimeter or the Munsell Limit Color Cascade.
(15) A colorimeter-based swim-up (SU) technique was developed and compared with a Hamilton Thorn Motility Analyser (HTM) for the evaluation of ram semen.
(16) Such modifications helped obtain compatible results of optic density measurements and DI values with photoelectric colorimeters of various brands.
(17) The effect of opacity on the colorimetric responses of large-area and small-area colorimeters was determined using an elastomer intended for maxillofacial prosthetics use and containing various pigments at different concentrations.
(18) The colorimeter setting is then matched by a combination of tinted trial lenses.
(19) This double-blind study evaluated the Rembrandt Lightening Gel and Whitening Toothpaste for shade change, colorimeter shade change.
(20) With both colorimeters a positive movement of the alpha-axis (toward red, P less than 0.001) and a negative movement on the L-axis (toward dark, P less than 0.01) were registered.