What's the difference between dynamics and kinematics?

Dynamics


Definition:

  • (n.) That branch of mechanics which treats of the motion of bodies (kinematics) and the action of forces in producing or changing their motion (kinetics). Dynamics is held by some recent writers to include statics and not kinematics.
  • (n.) The moving moral, as well as physical, forces of any kind, or the laws which relate to them.
  • (n.) That department of musical science which relates to, or treats of, the power of tones.

Example Sentences:

  • (1) Models able to describe the events of cellular growth and division and the dynamics of cell populations are useful for the understanding of functional control mechanisms and for the theoretical support for automated analysis of flow cytometric data and of cell volume distributions.
  • (2) Local embolism, vertebral distal-stump embolism, the dynamics of hemorrhagic infarction and embolus-in-transit are briefly described.
  • (3) Therefore, we have developed a powerful new microcomputer-based system which permits detailed investigations and evaluation of 3-D and 4-D (dynamic 3-D) biomedical images.
  • (4) Brain damage may be followed by a number of dynamic events including reactive synaptogenesis, rerouting of axons to unusual locations and altered axon retraction processes.
  • (5) Thus, mechanical restitution of the ventricle is a dynamic process that can be assessed using an elastance-based approach in the in situ heart.
  • (6) Time-series analysis and multiple-regression modeling procedures were used to characterize changes in the overall incidence rate over the study period and to describe the contribution of additional measures to the dynamics of the incidence rates.
  • (7) These results provide evidence that trait selection can change gonadotrophin receptor concentration and the dynamics of hormone secretion during the oestrous cycle of the mouse.
  • (8) Full consideration should be given to the dynamics of motion when assessing risk factors in working tasks.
  • (9) We describe both the three supportive psychotherapeutic steps, which may last months to years including subsequent dynamically psychotherapeutic strategies as well as the reactions of the auxiliary therapist function on the students.
  • (10) The dynamics has a hierarchical structure which has at least two levels.
  • (11) It may, however, be useful to compare local wall dynamics in the more isometrically-contracting basal segment with those in the middle portion which brings about most of the emptying of the ventricle.
  • (12) Echocardiography makes possible the analysis of cardiac structures and their dynamics.
  • (13) The design of a simple dynamic knee simulator is described.
  • (14) The most important causal factor, well illustrated by pressure studies, was the presence of a dynamic or static deformity leading to local areas of peak pressure on insensitive skin.
  • (15) The dynamic influence of continuously administered fentanyl (0.040 mg.kg-1.h-1 i.v.
  • (16) Dynamics in the changes was established among the workers from the production of "Synthetic rubber and latex", associated with the duration of occupational exposure to styrene and divinyl.
  • (17) Our dynamic study indicated that: 1) a bolus injection of contrast medium with our method of CTA (CTA-B) produced an attenuation difference between liver and tumor which was about double that obtained with standard methods for CTA, and 2) marked tumor-liver attenuation differences (above 20 HU) persisted for more than 60 s in CTA-B and for not more than 20 s with conventional methods for CTA.
  • (18) The paper develops a model as a framework for monitoring the course of the program through the policy cycle and recommends that the policy process be considered as dynamic, interactive, and evolutionary.
  • (19) These results suggest that the central shift in blood volume with WI reduces the sympathoadrenal response to high-intensity dynamic exercise.
  • (20) A variant of the FitzHugh-Nagumo model is proposed in order to fully make use of the computational properties of intraneuronal dynamics.

Kinematics


Definition:

  • (n.) The science which treats of motions considered in themselves, or apart from their causes; the comparison and relation of motions.

Example Sentences:

  • (1) The present study examines kinematic details of the laryngeal articulatory gesture in 2 deaf speakers and a control subject using transillumination of the larynx.
  • (2) The calculation, based on analytical expression derived by Cowley, has been shown previously to give an almost quantitative description of kinematical diffraction from linear chain systems.
  • (3) The study deals with 3 d-Kinematics and stability patterns according to a knee joint testing machine.
  • (4) Biomechanical analysis of the crosscountry techniques has developed from rather simple 2-dimensional kinematic descriptions of diagonal stride to complex measurement of skating forces and 3-dimensional motion.
  • (5) EMG of several flexor and extensor muscles was recorded together with the kinematics of the movement (EL.I.TE.
  • (6) The relationship between semitendinosus muscle force and knee joint kinematics during isometric torque production was examined in the frog (Rana pipiens) hindlimb.
  • (7) Possible relationships between acoustic and kinematic factors were also explored.
  • (8) Thirteen knees with Kinematic type total knee arthroplasty in 10 rheumatoid patients who were over 70 years of age were also reviewed.
  • (9) The apparatus was designed for kinematic analysis of gait from 16 mm movie film, but it will also permit a variety of other records to be taken.
  • (10) Second, I evaluated the vertical mobility of the condyle by the gap between opening path and closing path of the condyle in sagittal border movement and the location of the kinematic axis point.
  • (11) The kinematic parameters of push time, push angle, and abduction showed differences between 3 and 6 degrees camber.
  • (12) The force-length relationship was calculated from the signals of the components of the ground reaction forces and the kinematic data obtained from the high-speed film records.
  • (13) These neurons received polyarticular input, and it is suggested that they may be involved in the kinematic encoding of polyarticular movements.
  • (14) At present, little data exists describing the meniscal kinematics of the intact knee.
  • (15) Kinematic gait analysis is a rapidly growing field of veterinary research promising to become even more important in coming years.
  • (16) This study suggests that the results of Kinematic I TKA are superior to those of Oxford Meniscal TKA; that patellofemoral resurfacing is advisable; and that Kinematic I TKA yields 5-year data comparable to those of total hip arthroplasty.
  • (17) Upper lip (UL), lower lip (LL), and jaw (J) kinematics for nonstuttered speech behaviours in stutterers and normal speakers were examined using quantitative indices of normal multiple movement coordination reported in recent studies of gait, reaching, grasping, and speech.
  • (18) The kinematic analysis revealed non-significant results for hip, knee and ankle joint angles at touchdown for the various stride rates.
  • (19) zygapophysiales structurally represent a force locked, kinematically contrained four-bar-chain (link quadrangle).
  • (20) The purpose of the investigation was to determine whether: (1) deafferented animals display kinematic abnormalities similar to those of decerebellate animals, and (2) a combination of these two lesions results in cumulative motor disorders.