What's the difference between extensometer and stress?
Extensometer
Definition:
(n.) An instrument for measuring the extension of a body, especially for measuring the elongation of bars of iron, steel, or other material, when subjected to a tensile force.
Example Sentences:
(1) Strain across the supraspinous and anterior longitudinal ligaments was measured with two extensometers that were attached at the spondylolisthetic level and at the intact motion segments adjacent to the fixed level.
(2) Intervertebral displacements between L2 and L4 were continuously recorded utilizing an extensometer with the knife edges placed directly adjacent to the L3 corpectomy defect during testing.
(3) However, the crosshead displacement measurements diverged from the extensometer measurements as the compressive load increased.
(4) Mean Young's modulus determined by the extensometer technique was 689 MPa, but was 871 MPa when determined by the optical technique (mean difference = 182 MPa, SED = 50 MPa, p less than 0.002).
(5) Uniaxial load-deformation measurements were carried out with a non-invasive extensometer and utilized in formulating the model.
(6) Uneven strain distribution due to lack of support of cut vertical trabeculae at the anvil-specimen interface is believed to be causing the underestimation of Young's modulus measured by the extensometer technique.
(7) Using an anterior extensometer, intervertebral displacement at the second, third, and fourth lumbar levels, and thus across the corpectomy defect at the third lumbar level, was recorded "on line" during testing in flexion and axial load.
(8) Measurements of the skin extensibility at the treated sites were made using a uniaxial extensometer.
(9) At 770 N, the crosshead measurement was nearly twice the extensometer displacement.
(10) The superficial flexor tendon was exposed and fitted with an extensometer and a buckle-type force transducer.
(11) The preparation efficiency was evaluated by comparing strains measured from gauges and from an extensometer with sharp edges.
(12) Force simulating abductor muscle pull was applied to the trochanter in the plane of section while its displacement was measured continuously with an extensometer.
(13) Extensometers were used to measure motion at the prosthesis-bone interface.
(14) The extensometer is a new device with potential in the field of respiratory pattern analysis.
(15) Changes in the mechanical properties of pig skin have been studied in vivo, using a dermal extensometer, after irradiation with a single dose of 18 Gy of X rays.
(16) Parasagittal joint rotation, as measured by the extensometers, was minimal--less than one half of one degree.
(17) The other method consisted of extensometers mounted to bone at the joint line.
(18) A new skin extensometer, constructed with digital stepper motors and controlled with a microcomputer, is described to measure these properties for both skin and its subcutaneous attachments.
(19) Strain was measured by an extensometer attached to the compression anvils close to the specimen and by an optical system covering the central half of the specimens.
(20) The Extensometer is a new device capable of continuous accurate measurement of length over convex surfaces with a rapid response rate.
Stress
Definition:
(n.) Distress.
(n.) Pressure, strain; -- used chiefly of immaterial things; except in mechanics; hence, urgency; importance; weight; significance.
(n.) The force, or combination of forces, which produces a strain; force exerted in any direction or manner between contiguous bodies, or parts of bodies, and taking specific names according to its direction, or mode of action, as thrust or pressure, pull or tension, shear or tangential stress.
(n.) Force of utterance expended upon words or syllables. Stress is in English the chief element in accent and is one of the most important in emphasis. See Guide to pronunciation, // 31-35.
(n.) Distress; the act of distraining; also, the thing distrained.
(v. t.) To press; to urge; to distress; to put to difficulties.
(v. t.) To subject to stress, pressure, or strain.
Example Sentences:
(1) It is supposed that delta-sleep peptide along with other oligopeptides is one of the factors determining individual animal resistance to emotional stress, which is supported by significant delta-sleep peptide increase in hypothalamus in stable rats.
(2) Stress is laid on certain principles of diagnostic research in the event of extra-suprarenal pheochromocytomas.
(3) It also provides mechanical support for the collateral ligaments during valgus or varus stress of the knee.
(4) When you have been out for a month you need to prepare properly before you come back.” Pellegrini will make his own assessment of Kompany’s fitness before deciding whether to play him in the Bournemouth game, which he is careful to stress may not be the foregone conclusion the league table might suggest.
(5) The most common reasons cited for relapse included craving, social situations, stress, and nervousness.
(6) The intent of this study was to investigate, by three-dimensional photoelastic analysis, the stress transmission that occurs with four commonly used retentive systems.
(7) Studies were conducted to evaluate the effects of acute (24 h) thermal stress on anterior pituitary function in hens.
(8) The temporary loss of a family member through deployment brings unique stresses to a family in three different stages: predeployment, survival, and reunion.
(9) These results indicate that during IPPV the increased Pcv attenuates the pressure gradient for venous return and decreases CO and that the compensatory increase in Psf is caused by a blood shift from unstressed to stressed blood volume.
(10) Rigidly fixing the pubic symphysis stiffened the model and resulted in principal stress patterns that did not reflect trabecular density or orientations as well as those of the deformable pubic symphysis model.
(11) Subtle differences between Chicago urban and Grand Forks rural climates are reflected in arthritic subjects' degree of pain and their perception of pain-related stress.
(12) He stressed the importance of the motivation to the mother for breast feeding and the independence between levels of instruction and frequency of breast feeding.
(13) Since this test is easily performed and hardly stresses the patient, it should routinely be the initial one for the diagnosis of renal osteopathy.
(14) The structure of L-carnitine resembles the chemical structure of other substances that have been described as being able to protect living cells against osmotic stress.
(15) Recognition and prompt treatment of this potentially fatal dermatological crisis is stressed.
(16) In this sense, there is evidence that in genetically susceptible individuals, environmental stresses can influence the long-term level of arterial pressure via the central and peripheral neural autonomic pathways.
(17) The stress-induced increase in ACTH and corticosterone secretion was potentiated by SG.
(18) The pathoanatomy and factors associated with transient mitral regurgitation (MR) induced by myocardial ischemic stress are unknown.
(19) We reviewed the pre-Vietnam contents of the service medical and personnel records of 250 Vietnam combat veterans, in an attempt to identify factors predisposing to the development of posttraumatic stress disorder (PTSD).
(20) Small and medium fish swim up when stressed, whereas larger fish swim down.