What's the difference between adiabatic and isobaric?
Adiabatic
Definition:
(a.) Not giving out or receiving heat.
Example Sentences:
(1) The myocardium was assumed to be composed of a nonlinear viscoelastic, inhomogeneous, anisotropic (transversely isotropic) and incompressible material operating under adiabatic and isothermal conditions.
(2) The method involves a procedure in which the static pressure of the sample is altered in a short period of time, to approximate an adiabatic process, during which the ultrasonic velocity is measured.
(3) The technique is simple; one uses the echo generated by any pair of identical selective adiabatic inversion pulses.
(4) The following hydration parameters for the atomic groups of the nucleosides, reflecting the state of water in the hydration shells of these groups, have been analyzed: (1) the contribution of ribose to the values of the concentration increment of ultrasound velocity A, the apparent molar volumes phi v and apparent molar adiabatic compressibilities phi ks of nucleosides; (2) contributions of the CH3, NH2 and O = ... -H groups of nucleic bases to the A, phi v and phi ks values of nucleosides and free nucleic bases; (3) contributions of the 2'-OH group of ribose to the values of A, phi v and phi ks nucleosides; (4) changes in the A values of nucleosides and free nucleic bases upon their protonation and deprotonation.
(5) We also have designed a two-dimensional adiabatic pulse that inverts selectively in frequency and in one spatial dimension.
(6) As compared to an air-filled plethysmograph, its advantages were greater sensitivity, less thermal drift, and no change from adiabatic to isothermal conditions after a stepwise change of pressure.
(7) Thermal denaturation of natural DNA in the absence and presence of antitumor anthracycline antibiotics has been studied by adiabatic differential scanning calorimetry.
(8) The rat carcasses were subsequently analysed for TBN by Kjeldahl digestion, for total body water (TBW) by loss of weight after freeze-drying and for body fat by adiabatic bomb calorimetry after subtraction of protein energy.
(9) The adiabatic compressibility of oxidized thioredoxin was also much larger (9.8-18 x 10(-12) cm2 dyne-1) than that of the reduced protein (3.8-7.3 x 10(-12)).
(10) Adiabatic pulses were employed to provide homogeneous B1 excitation and frequency selective refocusing over the volume of the rat brain.
(11) NMR data were acquired in a transmural fashion by restricting the signal to a column perpendicular to the heart wall using B0 gradients and obtaining spectroscopic spatial resolution along the third dimension using the B1 gradient and adiabatic excitation.
(12) When these systems mutually form a feedback loop under the adiabatic condition, the rate equation of self-organization is described by a generalized Gibbs' free energy change delta U (delta x) followed by the reaction.
(13) Using the technique of separable k-space excitation, we have designed a two-dimensional selective adiabatic pulse that inverts magnetization from a square region in the xy plane with insensitivity to RF variations.
(14) The construction of an adiabatic flow calorimeter using water as the working substance is described.
(15) After adiabatic relaxation with rigid geometry, the map with ECEPP, and the map with AMBER using a distance-dependent dielectric constant, agreed fairly well apart from differences in the relative energies of the alpha R, alpha L, and C7ax regions.
(16) Thermodynamic studies on highly purified viroid preparations were carried out with the help of a very sensitive adiabatic microcalorimeter.
(17) Ensembles of trajectories were calculated for each of the five local minimum energy conformations identified in the adiabatic conformational energy mapping of this molecule.
(18) Thermal denaturation of chromatin has been investigated in the presence of Ca2+ ions by adiabatic scanning microcalorimetryc and thermomechanical methods.
(19) The flexibility of the oligomers and of their complexes is calculated by adiabatic mapping with respect to the total winding angle.
(20) All experiments were executed with adiabatic pulses which induced uniform spin excitation despite the inhomogeneous radiofrequency field distribution produced by the surface coil transmitter.
Isobaric
Definition:
(a.) Denoting equal pressure; as, an isobaric line; specifically, of or pertaining to isobars.
Example Sentences:
(1) The mean spread of sensory blockade with isobaric bupivacaine was 16.95 segments (T6).
(2) Model predictions based upon these data compare favorably with published reports of isobaric inert gas supersaturation, as well as several previously unpublished observations.
(3) The appearance of isobaric HPNS during the switch might be due to the disappearance of the narcotic substance which suppressed or masked the clinical symptoms; it might also be due to the sudden increase in the partial pressure of He, which was equivalent to a fast compression.
(4) These results suggest that pre-existing hypertension can be recognized as an important factor to explain blood pressures changes during isobaric bupivacaine spinal anesthesia in elderly patients.
(5) This paper is concerned with the theretical background and implications of isobaric supersaturation and bubble formation in the microcirculation following an abrupt shift from one inspired inert gas to another.
(6) We suggest the results can be explained on the basis of the time-varying elastance concept: systolic elastance is the same for isovolumic and isobaric beats but depends on contractility.
(7) The decrease in mean arterial pressure was significantly more severe in the hyperbaric (30%) than in either the isobaric (18%) or hypobaric (14%) groups.
(8) These ions, which are referred to as (B-16) ions, permit differentiation between the isobaric amino acids lysine and glutamine in peptide mass spectra.
(9) The upper margin of analgesic zone at 15min and 60min after the subarachnoid injection of bupivacaine was higher in the hyperbaric groups, but it receded thereafter and significant differences were found at 120min compared with the isobaric group.
(10) Sixteen animal exposures (8 dives, 2 animals per dive) to a sudden isobaric gas switch from saturation on N2 to He were conducted; 8 saturations occurred at 132 fsw and 8 at 198 fsw.
(11) Group 1 patients received 3 ml of 0.5% isobaric bupivacaine.
(12) The duration of analgesia and the cardiovascular changes during anesthesia of spinal blockade with isobaric bupivacaine were examined in 36 patients between 21 and 75 years old undergoing percutaneous nephro-ureterolithotomy.
(13) In addition 3 ml isobaric bupivacaine in doses of 7.5 mg (0.25%), 15 mg (0.5%) and 22.5 mg (0.75%).
(14) These further signals may be useful in differentiating peptides containing lysine from those containing the isobaric glutamine.
(15) Individual diameter- and compliance-pressure curves extrapolated from the measured diameter and mean pressure point with a logarithmic elastic model permitted calculation of isobaric diameter and compliance at the same pressure in each subject.
(16) At isobaric intervals, compliance did not differ between control and myopathic ventricles.
(17) Because of the absence of a defined zone of analgesia, the small volumes required and the "ready for use" preparation, intrathecal isobaric morphine therapy will lead to easy self-administration via an implanted pump in the future.
(18) However, by measuring arterial compliance at the same pressure, its isobaric values were found to be unchanged.
(19) The 9 former premature received 0.6 ml isobaric bupivacaine 0.5%, and the child born on term with diaphragmatic hernia 0.8 ml isobaric bupivacaine 0.5%.
(20) Overall, measured isobaric diameters and measured compliance correlated with systolic, diastolic, and mean blood pressure values (p less than 0.001), whereas isobaric compliance correlated only with systolic (p less than 0.05) and pulse (p less than 0.01) pressure values.