An increase in the rate of speed.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
A gelatinous membrane overlying the acoustic maculae of SACCULE AND UTRICLE. It contains minute crystalline particles (otoliths) of CALCIUM CARBONATE and protein on its outer surface. In response to head movement, the otoliths shift causing distortion of the vestibular hair cells which transduce nerve signals to the BRAIN for interpretation of equilibrium.
A decrease in the rate of speed.
Acceleration produced by the mutual attraction of two masses, and of magnitude inversely proportional to the square of the distance between the two centers of mass. It is also the force imparted by the earth, moon, or a planet to an object near its surface. (From NASA Thesaurus, 1988)
A reflex wherein impulses are conveyed from the cupulas of the SEMICIRCULAR CANALS and from the OTOLITHIC MEMBRANE of the SACCULE AND UTRICLE via the VESTIBULAR NUCLEI of the BRAIN STEM and the median longitudinal fasciculus to the OCULOMOTOR NERVE nuclei. It functions to maintain a stable retinal image during head rotation by generating appropriate compensatory EYE MOVEMENTS.
Motion of an object in which either one or more points on a line are fixed. It is also the motion of a particle about a fixed point. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A continuing periodic change in displacement with respect to a fixed reference. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
Voluntary or involuntary motion of head that may be relative to or independent of body; includes animals and humans.
The act, process, or result of passing from one place or position to another. It differs from LOCOMOTION in that locomotion is restricted to the passing of the whole body from one place to another, while movement encompasses both locomotion but also a change of the position of the whole body or any of its parts. Movement may be used with reference to humans, vertebrate and invertebrate animals, and microorganisms. Differentiate also from MOTOR ACTIVITY, movement associated with behavior.
An oval, bony chamber of the inner ear, part of the bony labyrinth. It is continuous with bony COCHLEA anteriorly, and SEMICIRCULAR CANALS posteriorly. The vestibule contains two communicating sacs (utricle and saccule) of the balancing apparatus. The oval window on its lateral wall is occupied by the base of the STAPES of the MIDDLE EAR.
Process whereby a cell, bodily structure, or organism (animal or plant) receives or detects a gravity stimulus. Gravity sensing plays an important role in the directional growth and development of an organism (GRAVITROPISM).
The storing or preserving of video signals for television to be played back later via a transmitter or receiver. Recordings may be made on magnetic tape or discs (VIDEODISC RECORDING).
Three long canals (anterior, posterior, and lateral) of the bony labyrinth. They are set at right angles to each other and are situated posterosuperior to the vestibule of the bony labyrinth (VESTIBULAR LABYRINTH). The semicircular canals have five openings into the vestibule with one shared by the anterior and the posterior canals. Within the canals are the SEMICIRCULAR DUCTS.
An activity in which the body is propelled by moving the legs rapidly. Running is performed at a moderate to rapid pace and should be differentiated from JOGGING, which is performed at a much slower pace.
Elements of limited time intervals, contributing to particular results or situations.
The position or attitude of the body.
Manner or style of walking.
The upper part of the human body, or the front or upper part of the body of an animal, typically separated from the rest of the body by a neck, and containing the brain, mouth, and sense organs.
Condition wherein the force of gravity is greater than or is increased above that on the surface of the earth. This is expressed as being greater than 1 g.
The apparent deflection (Coriolis acceleration) of a body in motion with respect to the earth, as seen by an observer on the earth, attributed to a fictitious force (Coriolis force) but actually caused by the rotation of the earth. In a medical context it refers to the physiological effects (nausea, vertigo, dizziness, etc.) felt by a person moving radially in a rotating system, as a rotating space station. (From Random House Unabridged Dictionary, 2d ed & McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
The rate dynamics in chemical or physical systems.
Voluntary or reflex-controlled movements of the eye.
Recording of the changes in electric potential of muscle by means of surface or needle electrodes.
The vestibular part of the 8th cranial nerve (VESTIBULOCOCHLEAR NERVE). The vestibular nerve fibers arise from neurons of Scarpa's ganglion and project peripherally to vestibular hair cells and centrally to the VESTIBULAR NUCLEI of the BRAIN STEM. These fibers mediate the sense of balance and head position.
Movement or the ability to move from one place or another. It can refer to humans, vertebrate or invertebrate animals, and microorganisms.
Qualitative and quantitative measurement of MOVEMENT patterns.
Theoretical representations that simulate the behavior or activity of biological processes or diseases. For disease models in living animals, DISEASE MODELS, ANIMAL is available. Biological models include the use of mathematical equations, computers, and other electronic equipment.
A POSTURE in which an ideal body mass distribution is achieved. Postural balance provides the body carriage stability and conditions for normal functions in stationary position or in movement, such as sitting, standing, or walking.
The use of wings or wing-like appendages to remain aloft and move through the air.
The real or apparent movement of objects through the visual field.
An activity in which the body is propelled through water by specific movement of the arms and/or the legs. Swimming as propulsion through water by the movement of limbs, tail, or fins of animals is often studied as a form of PHYSICAL EXERTION or endurance.
Eye movements that are slow, continuous, and conjugate and occur when a fixed object is moved slowly.
Personal devices for protection of heads from impact, penetration from falling and flying objects, and from limited electric shock and burn.
Recorded electrical responses from muscles, especially the neck muscles or muscles around the eyes, following stimulation of the EAR VESTIBULE.
The use of electronic equipment to observe or record physiologic processes while the patient undergoes normal daily activities.
A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.
Measurement of intracardiac blood flow using an M-mode and/or two-dimensional (2-D) echocardiogram while simultaneously recording the spectrum of the audible Doppler signal (e.g., velocity, direction, amplitude, intensity, timing) reflected from the moving column of red blood cells.
Water waves caused by the gravitational interactions between the EARTH; MOON; and SUN.
An occupational disorder resulting from prolonged exposure to vibration, affecting the fingers, hands, and forearms. It occurs in workers who regularly use vibrating tools such as jackhammers, power chain saws, riveters, etc. Symptoms include episodic finger blanching, NUMBNESS, tingling, and loss of nerve sensitivity.
Methods of creating machines and devices.
The four cellular masses in the floor of the fourth ventricle giving rise to a widely dispersed special sensory system. Included is the superior, medial, inferior, and LATERAL VESTIBULAR NUCLEUS. (From Dorland, 27th ed)
The region of the upper limb between the metacarpus and the FOREARM.
Computer-based representation of physical systems and phenomena such as chemical processes.
Computer-assisted processing of electric, ultrasonic, or electronic signals to interpret function and activity.
Hyperextension injury to the neck, often the result of being struck from behind by a fast-moving vehicle, in an automobile accident. (From Segen, The Dictionary of Modern Medicine, 1992)
Also known as articulations, these are points of connection between the ends of certain separate bones, or where the borders of other bones are juxtaposed.
Four or five slender jointed digits in humans and primates, attached to each HAND.
An activity in which the body advances at a slow to moderate pace by moving the feet in a coordinated fashion. This includes recreational walking, walking for fitness, and competitive race-walking.
Pathological processes of the VESTIBULAR LABYRINTH which contains part of the balancing apparatus. Patients with vestibular diseases show instability and are at risk of frequent falls.
Two membranous sacs within the vestibular labyrinth of the INNER EAR. The saccule communicates with COCHLEAR DUCT through the ductus reuniens, and communicates with utricle through the utriculosaccular duct from which the ENDOLYMPHATIC DUCT arises. The utricle and saccule have sensory areas (acoustic maculae) which are innervated by the VESTIBULAR NERVE.
Any device or element which converts an input signal into an output signal of a different form. Examples include the microphone, phonographic pickup, loudspeaker, barometer, photoelectric cell, automobile horn, doorbell, and underwater sound transducer. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed)
The neck muscles consist of the platysma, splenius cervicis, sternocleidomastoid(eus), longus colli, the anterior, medius, and posterior scalenes, digastric(us), stylohyoid(eus), mylohyoid(eus), geniohyoid(eus), sternohyoid(eus), omohyoid(eus), sternothyroid(eus), and thyrohyoid(eus).
Either of two extremities of four-footed non-primate land animals. It usually consists of a FEMUR; TIBIA; and FIBULA; tarsals; METATARSALS; and TOES. (From Storer et al., General Zoology, 6th ed, p73)
A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.
Sensory functions that transduce stimuli received by proprioceptive receptors in joints, tendons, muscles, and the INNER EAR into neural impulses to be transmitted to the CENTRAL NERVOUS SYSTEM. Proprioception provides sense of stationary positions and movements of one's body parts, and is important in maintaining KINESTHESIA and POSTURAL BALANCE.
The superior part of the upper extremity between the SHOULDER and the ELBOW.
A value equal to the total volume flow divided by the cross-sectional area of the vascular bed.
The essential part of the hearing organ consists of two labyrinthine compartments: the bony labyrinthine and the membranous labyrinth. The bony labyrinth is a complex of three interconnecting cavities or spaces (COCHLEA; VESTIBULAR LABYRINTH; and SEMICIRCULAR CANALS) in the TEMPORAL BONE. Within the bony labyrinth lies the membranous labyrinth which is a complex of sacs and tubules (COCHLEAR DUCT; SACCULE AND UTRICLE; and SEMICIRCULAR DUCTS) forming a continuous space enclosed by EPITHELIUM and connective tissue. These spaces are filled with LABYRINTHINE FLUIDS of various compositions.
Traumatic injuries to the cranium where the integrity of the skull is not compromised and no bone fragments or other objects penetrate the skull and dura mater. This frequently results in mechanical injury being transmitted to intracranial structures which may produce traumatic brain injuries, hemorrhage, or cranial nerve injury. (From Rowland, Merritt's Textbook of Neurology, 9th ed, p417)
Involuntary rhythmical movements of the eyes in the normal person. These can be naturally occurring as in end-position (end-point, end-stage, or deviational) nystagmus or induced by the optokinetic drum (NYSTAGMUS, OPTOKINETIC), caloric test, or a rotating chair.
Physical motion, i.e., a change in position of a body or subject as a result of an external force. It is distinguished from MOVEMENT, a process resulting from biological activity.
The distal part of the arm beyond the wrist in humans and primates, that includes the palm, fingers, and thumb.
Improvement of the quality of a picture by various techniques, including computer processing, digital filtering, echocardiographic techniques, light and ultrastructural MICROSCOPY, fluorescence spectrometry and microscopy, scintigraphy, and in vitro image processing at the molecular level.
The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.
The time from the onset of a stimulus until a response is observed.
The entities of matter and energy, and the processes, principles, properties, and relationships describing their nature and interactions.
The number of times the HEART VENTRICLES contract per unit of time, usually per minute.
The sole family in the order Sphenisciformes, comprised of 17 species of penguins in six genera. They are flightless seabirds of the Southern Hemisphere, highly adapted for marine life.
A competitive team sport played on a rectangular field. This is the American or Canadian version of the game and also includes the form known as rugby. It does not include non-North American football (= SOCCER).
A statistical technique that isolates and assesses the contributions of categorical independent variables to variation in the mean of a continuous dependent variable.
A usually four-wheeled automotive vehicle designed for passenger transportation and commonly propelled by an internal-combustion engine using a volatile fuel. (Webster, 1973)
The central part of the body to which the neck and limbs are attached.
The coordination of a sensory or ideational (cognitive) process and a motor activity.
Contractile activity of the MYOCARDIUM.
The statistical reproducibility of measurements (often in a clinical context), including the testing of instrumentation or techniques to obtain reproducible results. The concept includes reproducibility of physiological measurements, which may be used to develop rules to assess probability or prognosis, or response to a stimulus; reproducibility of occurrence of a condition; and reproducibility of experimental results.
That branch of medicine dealing with the studies and effects of flight through the atmosphere or in space upon the human body and with the prevention or cure of physiological or psychological malfunctions arising from these effects. (from NASA Thesaurus)
Information application based on a variety of coding methods to minimize the amount of data to be stored, retrieved, or transmitted. Data compression can be applied to various forms of data, such as images and signals. It is used to reduce costs and increase efficiency in the maintenance of large volumes of data.
A species of the genus MACACA inhabiting India, China, and other parts of Asia. The species is used extensively in biomedical research and adapts very well to living with humans.
Innate response elicited by sensory stimuli associated with a threatening situation, or actual confrontation with an enemy.
Large aggregates of CELESTIAL STARS; COSMIC DUST; and gas. (From McGraw Hill Dictionary of Scientific and Technical Terms, 6th ed)
A genus of long-legged, swift-moving felines (FELIDAE) from Africa (and formerly Asia) about the size of a small leopard.
The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)
A system in which the functions of the man and the machine are interrelated and necessary for the operation of the system.
Investigative technique commonly used during ELECTROENCEPHALOGRAPHY in which a series of bright light flashes or visual patterns are used to elicit brain activity.
Methods developed to aid in the interpretation of ultrasound, radiographic images, etc., for diagnosis of disease.
A nonspecific term used to describe transient alterations or loss of consciousness following closed head injuries. The duration of UNCONSCIOUSNESS generally lasts a few seconds, but may persist for several hours. Concussions may be classified as mild, intermediate, and severe. Prolonged periods of unconsciousness (often defined as greater than 6 hours in duration) may be referred to as post-traumatic coma (COMA, POST-HEAD INJURY). (From Rowland, Merritt's Textbook of Neurology, 9th ed, p418)
The evaluation of incidents involving the loss of function of a device. These evaluations are used for a variety of purposes such as to determine the failure rates, the causes of failures, costs of failures, and the reliability and maintainability of devices.
Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.
Transmission of the readings of instruments to a remote location by means of wires, radio waves, or other means. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
An activity in which the organism plunges into water. It includes scuba and bell diving. Diving as natural behavior of animals goes here, as well as diving in decompression experiments with humans or animals.
Act of eliciting a response from a person or organism through physical contact.
Sensory cells in the acoustic maculae with their apical STEREOCILIA embedded in a gelatinous OTOLITHIC MEMBRANE. These hair cells are stimulated by the movement of otolithic membrane, and impulses are transmitted via the VESTIBULAR NERVE to the BRAIN STEM. Hair cells in the saccule and those in the utricle sense linear acceleration in vertical and horizontal directions, respectively.
Use of electric potential or currents to elicit biological responses.
Condition in which no acceleration, whether due to gravity or any other force, can be detected by an observer within a system. It also means the absence of weight or the absence of the force of gravity acting on a body. Microgravity, gravitational force between 0 and 10 -6 g, is included here. (From NASA Thesaurus, 1988)
The muscles that move the eye. Included in this group are the medial rectus, lateral rectus, superior rectus, inferior rectus, inferior oblique, superior oblique, musculus orbitalis, and levator palpebrae superioris.
The process of generating three-dimensional images by electronic, photographic, or other methods. For example, three-dimensional images can be generated by assembling multiple tomographic images with the aid of a computer, while photographic 3-D images (HOLOGRAPHY) can be made by exposing film to the interference pattern created when two laser light sources shine on an object.
The physical activity of a human or an animal as a behavioral phenomenon.
Theoretical representations that simulate the behavior or activity of the neurological system, processes or phenomena; includes the use of mathematical equations, computers, and other electronic equipment.
Transport of the OVUM or fertilized ovum (ZYGOTE) from the mammalian oviduct (FALLOPIAN TUBES) to the site of EMBRYO IMPLANTATION in the UTERUS.
A basic element found in nearly all organized tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.
Process of using a rotating machine to generate centrifugal force to separate substances of different densities, remove moisture, or simulate gravitational effects. It employs a large motor-driven apparatus with a long arm, at the end of which human and animal subjects, biological specimens, or equipment can be revolved and rotated at various speeds to study gravitational effects. (From Websters, 10th ed; McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
The hollow, muscular organ that maintains the circulation of the blood.
The study of those aspects of energy and matter in terms of elementary principles and laws. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The rear surface of an upright primate from the shoulders to the hip, or the dorsal surface of tetrapods.
The physical state of supporting an applied load. This often refers to the weight-bearing bones or joints that support the body's weight, especially those in the spine, hip, knee, and foot.
The measurement of magnetic fields generated by electric currents from the heart. The measurement of these fields provides information which is complementary to that provided by ELECTROCARDIOGRAPHY.
A technique of inputting two-dimensional images into a computer and then enhancing or analyzing the imagery into a form that is more useful to the human observer.
A class of devices combining electrical and mechanical components that have at least one of the dimensions in the micrometer range (between 1 micron and 1 millimeter). They include sensors, actuators, microducts, and micropumps.
The rotational force about an axis that is equal to the product of a force times the distance from the axis where the force is applied.
Determination of the quantity of a material present in a mixture by measurement of its effect on the electrical conductivity of the mixture. (Webster, 3d ed)
The study of the deformation and flow of matter, usually liquids or fluids, and of the plastic flow of solids. The concept covers consistency, dilatancy, liquefaction, resistance to flow, shearing, thixotrophy, and VISCOSITY.
Surface resistance to the relative motion of one body against the rubbing, sliding, rolling, or flowing of another with which it is in contact.
The gradual irreversible changes in structure and function of an organism that occur as a result of the passage of time.
A change in, or manipulation of, gravitational force. This may be a natural or artificial effect.
Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.
A number of tests used to determine if the brain or balance portion of the inner ear are causing dizziness.
The hemodynamic and electrophysiological action of the HEART VENTRICLES.
Monitoring of FETAL HEART frequency before birth in order to assess impending prematurity in relation to the pattern or intensity of antepartum UTERINE CONTRACTION.
Awareness of oneself in relation to time, place and person.
The distal extremity of the leg in vertebrates, consisting of the tarsus (ANKLE); METATARSUS; phalanges; and the soft tissues surrounding these bones.
Equipment required for engaging in a sport (such as balls, bats, rackets, skis, skates, ropes, weights) and devices for the protection of athletes during their performance (such as masks, gloves, mouth pieces).
Naturally occurring or experimentally induced animal diseases with pathological processes sufficiently similar to those of human diseases. They are used as study models for human diseases.
Restoration of integrity to traumatized tissue.
Locomotor behavior not involving a steering reaction, but in which there may be a turning random in direction. It includes orthokinesis, the rate of movement and klinokinesis, the amount of turning, which are related to the intensity of stimulation.
A family of hoofed MAMMALS consisting of HORSES, donkeys, and zebras. Members of this family are strict herbivores and can be classified as either browsers or grazers depending on how they feed.
The projecting part on each side of the body, formed by the side of the pelvis and the top portion of the femur.
Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others.
Automotive safety devices consisting of a bag designed to inflate upon collision and prevent passengers from pitching forward. (American Heritage Dictionary, 1982)
Four clusters of neurons located deep within the WHITE MATTER of the CEREBELLUM, which are the nucleus dentatus, nucleus emboliformis, nucleus globosus, and nucleus fastigii.
The most diversified of all fish orders and the largest vertebrate order. It includes many of the commonly known fish such as porgies, croakers, sunfishes, dolphin fish, mackerels, TUNA, etc.
A type of stress exerted uniformly in all directions. Its measure is the force exerted per unit area. (McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed)
The two dissimilar sized ribonucleoprotein complexes that comprise a RIBOSOME - the large ribosomal subunit and the small ribosomal subunit. The eukaryotic 80S ribosome is composed of a 60S large subunit and a 40S small subunit. The bacterial 70S ribosome is composed of a 50S large subunit and a 30S small subunit.
Statistical models in which the value of a parameter for a given value of a factor is assumed to be equal to a + bx, where a and b are constants. The models predict a linear regression.
Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)
Disorder caused by motion, as sea sickness, train sickness, car sickness, air sickness, or SPACE MOTION SICKNESS. It may include nausea, vomiting and dizziness.
Normal nystagmus produced by looking at objects moving across the field of vision.
Laboratory mice that have been produced from a genetically manipulated EGG or EMBRYO, MAMMALIAN.
An oviparous burrowing mammal of the order Monotremata native to Australia, Tasmania, and New Guinea. It has hair mingled with spines on the upper part of the body and is adapted for feeding on ants.
Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.
Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.
The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.
A purely physical condition which exists within any material because of strain or deformation by external forces or by non-uniform thermal expansion; expressed quantitatively in units of force per unit area.
Devices or objects in various imaging techniques used to visualize or enhance visualization by simulating conditions encountered in the procedure. Phantoms are used very often in procedures employing or measuring x-irradiation or radioactive material to evaluate performance. Phantoms often have properties similar to human tissue. Water demonstrates absorbing properties similar to normal tissue, hence water-filled phantoms are used to map radiation levels. Phantoms are used also as teaching aids to simulate real conditions with x-ray or ultrasonic machines. (From Iturralde, Dictionary and Handbook of Nuclear Medicine and Clinical Imaging, 1990)
The posterior part of the temporal bone. It is a projection of the petrous bone.
The species Oryctolagus cuniculus, in the family Leporidae, order LAGOMORPHA. Rabbits are born in burrows, furless, and with eyes and ears closed. In contrast with HARES, rabbits have 22 chromosome pairs.
The study of systems which respond disproportionately (nonlinearly) to initial conditions or perturbing stimuli. Nonlinear systems may exhibit "chaos" which is classically characterized as sensitive dependence on initial conditions. Chaotic systems, while distinguished from more ordered periodic systems, are not random. When their behavior over time is appropriately displayed (in "phase space"), constraints are evident which are described by "strange attractors". Phase space representations of chaotic systems, or strange attractors, usually reveal fractal (FRACTALS) self-similarity across time scales. Natural, including biological, systems often display nonlinear dynamics and chaos.
A relatively common sequela of blunt head injury, characterized by a global disruption of axons throughout the brain. Associated clinical features may include NEUROBEHAVIORAL MANIFESTATIONS; PERSISTENT VEGETATIVE STATE; DEMENTIA; and other disorders.

Visual motion analysis for pursuit eye movements in area MT of macaque monkeys. (1/829)

We asked whether the dynamics of target motion are represented in visual area MT and how information about image velocity and acceleration might be extracted from the population responses in area MT for use in motor control. The time course of MT neuron responses was recorded in anesthetized macaque monkeys during target motions that covered the range of dynamics normally seen during smooth pursuit eye movements. When the target motion provided steps of target speed, MT neurons showed a continuum from purely tonic responses to those with large transient pulses of firing at the onset of motion. Cells with large transient responses for steps of target speed also had larger responses for smooth accelerations than for decelerations through the same range of target speeds. Condition-test experiments with pairs of 64 msec pulses of target speed revealed response attenuation at short interpulse intervals in cells with large transient responses. For sinusoidal modulation of target speed, MT neuron responses were strongly modulated for frequencies up to, but not higher than, 8 Hz. The phase of the responses was consistent with a 90 msec time delay between target velocity and firing rate. We created a model that reproduced the dynamic responses of MT cells using divisive gain control, used the model to visualize the population response in MT to individual stimuli, and devised weighted-averaging computations to reconstruct target speed and acceleration from the population response. Target speed could be reconstructed if each neuron's output was weighted according to its preferred speed. Target acceleration could be reconstructed if each neuron's output was weighted according to the product of preferred speed and a measure of the size of its transient response.  (+info)

Velocity associated characteristics of force production in college weight lifters. (2/829)

OBJECTIVE: To determine velocity specific isokinetic forces and cross sectional areas of reciprocal muscle groups in Olympic weight lifters. METHODS: The cross sectional area of the flexor or extensor muscles of the elbow or knee joint was determined by a B-mode ultrasonic apparatus in 34 college weight lifters and 31 untrained male subjects matched for age. Maximum voluntary force produced in the flexion and extension of the elbow and knee joints was measured on an isokinetic dynamometer at 60, 180, and 300 degrees/s. RESULTS: The average cross sectional area was 31-65% higher, and the force was 19-62% higher in weight lifters than in the untrained subjects. The ratio of force to cross sectional area was the same in both groups. The weight lifters showed a lower velocity associated decline in force than untrained subjects in the elbow and knee flexors but not in the extensors. CONCLUSIONS: These results indicate that for muscle contractions with velocities between 60 degrees/s and 300 degrees/s the difference in isokinetic force between weight lifters and untrained subjects can be primarily attributed to the difference in the muscle cross sectional area. However, the lower velocity associated decline in force implies that weight lifters may have a higher force per cross sectional area than untrained subjects at velocities above 300 degrees/s.  (+info)

Effects of tilt of the gravito-inertial acceleration vector on the angular vestibuloocular reflex during centrifugation. (3/829)

Effects of tilt of the gravito-inertial acceleration vector on the angular vestibuloocular reflex during centrifugation. Interaction of the horizontal linear and angular vestibuloocular reflexes (lVOR and aVOR) was studied in rhesus and cynomolgus monkeys during centered rotation and off-center rotation at a constant velocity (centrifugation). During centered rotation, the eye velocity vector was aligned with the axis of rotation, which was coincident with the direction of gravity. Facing and back to motion centrifugation tilted the resultant of gravity and linear acceleration, gravito-inertial acceleration (GIA), inducing cross-coupled vertical components of eye velocity. These components were upward when facing motion and downward when back to motion and caused the axis of eye velocity to reorient from alignment with the body yaw axis toward the tilted GIA. A major finding was that horizontal time constants were asymmetric in each monkey, generally being longer when associated with downward than upward cross coupling. Because of these asymmetries, accurate estimates of the contribution of the horizontal lVOR could not be obtained by simply subtracting horizontal eye velocity profiles during facing and back to motion centrifugation. Instead, it was necessary to consider the effects of GIA tilts on velocity storage before attempting to estimate the horizontal lVOR. In each monkey, the horizontal time constant of optokinetic after-nystagmus (OKAN) was reduced as a function of increasing head tilt with respect to gravity. When variations in horizontal time constant as a function of GIA tilt were included in the aVOR model, the rising and falling phases of horizontal eye velocity during facing and back to motion centrifugation were closely predicted, and the estimated contribution of the compensatory lVOR was negligible. Beating fields of horizontal eye position were unaffected by the presence or magnitude of linear acceleration during centrifugation. These conclusions were evaluated in animals in which the low-frequency aVOR was abolished by canal plugging, isolating the contribution of the lVOR. Postoperatively, the animals had normal ocular counterrolling and horizontal eye velocity modulation during off-vertical axis rotation (OVAR), suggesting that the otoliths were intact. No measurable horizontal eye velocity was elicited by centrifugation with angular accelerations +info)

Vertical eye position-dependence of the human vestibuloocular reflex during passive and active yaw head rotations. (4/829)

Vertical eye position-dependence of the human vestibuloocular reflex during passive and active yaw head rotations. The effect of vertical eye-in-head position on the compensatory eye rotation response to passive and active high acceleration yaw head rotations was examined in eight normal human subjects. The stimuli consisted of brief, low amplitude (15-25 degrees ), high acceleration (4,000-6,000 degrees /s2) yaw head rotations with respect to the trunk (peak velocity was 150-350 degrees /s). Eye and head rotations were recorded in three-dimensional space using the magnetic search coil technique. The input-output kinematics of the three-dimensional vestibuloocular reflex (VOR) were assessed by finding the difference between the inverted eye velocity vector and the head velocity vector (both referenced to a head-fixed coordinate system) as a time series. During passive head impulses, the head and eye velocity axes aligned well with each other for the first 47 ms after the onset of the stimulus, regardless of vertical eye-in-head position. After the initial 47-ms period, the degree of alignment of the eye and head velocity axes was modulated by vertical eye-in-head position. When fixation was on a target 20 degrees up, the eye and head velocity axes remained well aligned with each other. However, when fixation was on targets at 0 and 20 degrees down, the eye velocity axis tilted forward relative to the head velocity axis. During active head impulses, the axis tilt became apparent within 5 ms of the onset of the stimulus. When fixation was on a target at 0 degrees, the velocity axes remained well aligned with each other. When fixation was on a target 20 degrees up, the eye velocity axis tilted backward, when fixation was on a target 20 degrees down, the eye velocity axis tilted forward. The findings show that the VOR compensates very well for head motion in the early part of the response to unpredictable high acceleration stimuli-the eye position- dependence of the VOR does not become apparent until 47 ms after the onset of the stimulus. In contrast, the response to active high acceleration stimuli shows eye position-dependence from within 5 ms of the onset of the stimulus. A model using a VOR-Listing's law compromise strategy did not accurately predict the patterns observed in the data, raising questions about how the eye position-dependence of the VOR is generated. We suggest, in view of recent findings, that the phenomenon could arise due to the effects of fibromuscular pulleys on the functional pulling directions of the rectus muscles.  (+info)

Cervical electromyographic activity during low-speed rear impact. (5/829)

Whiplash motion of the neck is characterized by having an extension-flexion motion of the neck. It has been previously assumed that muscles do not play a role in the injury. Eight healthy males were seated in a car seat mounted on a sled. The sled was accelerated by a spring mechanism. Muscle electromyographic (EMG) activity was measured by wire electrodes in semi-spinalis capitis, splenius capitis, and levator scapulae. Surface EMG activity was measured over trapezius and sternocleidomastoideus. Wavelet analysis was used to establish the onset of muscle activity with respect to sled movement. Shorter reaction times were found to be as low as 13.2 ms from head acceleration and 65.6 ms from sled acceleration. Thus the muscles could influence the injury pattern. It is of interest that clinical symptoms are often attributed to muscle tendon injuries.  (+info)

Transformations in flagellar structure of Rhodobacter sphaeroides and possible relationship to changes in swimming speed. (6/829)

Rhodobacter sphaeroides is a photosynthetic bacterium which swims by rotating a single flagellum in one direction, periodically stopping, and reorienting during these stops. Free-swimming R. sphaeroides was examined by both differential interference contrast (DIC) microscopy, which allows the flagella of swimming cells to be seen in vivo, and tracking microscopy, which tracks swimming patterns in three dimensions. DIC microscopy showed that when rotation stopped, the helical flagellum relaxed into a high-amplitude, short-wavelength coiled form, confirming previous observations. However, DIC microscopy also revealed that the coiled filament could rotate slowly, reorienting the cell before a transition back to the functional helix. The time taken to reform a functional helix depended on the rate of rotation of the helix and the length of the filament. In addition to these coiled and helical forms, a third conformation was observed: a rapidly rotating, apparently straight form. This form took shape from the cell body out and was seen to form directly from flagella that were initially in either the coiled or the helical conformation. This form was always significantly longer than the coiled or helical form from which it was derived. The resolution of DIC microscopy made it impossible to identify whether this form was genuinely in a straight conformation or was a low-amplitude, long-wavelength helix. Examination of the three-dimensional swimming pattern showed that R. sphaeroides changed speed while swimming, sometimes doubling the swimming speed between stops. The rate of acceleration out of stops was also variable. The transformations in waveform are assumed to be torsionally driven and may be related to the changes in speed measured in free-swimming cells. The roles of and mechanisms that may be involved in the transformations of filament conformations and changes in swimming speed are discussed.  (+info)

Horizontal vestibuloocular reflex evoked by high-acceleration rotations in the squirrel monkey. I. Normal responses. (7/829)

The horizontal angular vestibuloocular reflex (VOR) evoked by high-frequency, high-acceleration rotations was studied in five squirrel monkeys with intact vestibular function. The VOR evoked by steps of acceleration in darkness (3,000 degrees /s(2) reaching a velocity of 150 degrees /s) began after a latency of 7.3 +/- 1.5 ms (mean +/- SD). Gain of the reflex during the acceleration was 14.2 +/- 5.2% greater than that measured once the plateau head velocity had been reached. A polynomial regression was used to analyze the trajectory of the responses to steps of acceleration. A better representation of the data was obtained from a polynomial that included a cubic term in contrast to an exclusively linear fit. For sinusoidal rotations of 0.5-15 Hz with a peak velocity of 20 degrees /s, the VOR gain measured 0.83 +/- 0.06 and did not vary across frequencies or animals. The phase of these responses was close to compensatory except at 15 Hz where a lag of 5.0 +/- 0.9 degrees was noted. The VOR gain did not vary with head velocity at 0.5 Hz but increased with velocity for rotations at frequencies of >/=4 Hz (0. 85 +/- 0.04 at 4 Hz, 20 degrees /s; 1.01 +/- 0.05 at 100 degrees /s, P < 0.0001). No responses to these rotations were noted in two animals that had undergone bilateral labyrinthectomy indicating that inertia of the eye had a negligible effect for these stimuli. We developed a mathematical model of VOR dynamics to account for these findings. The inputs to the reflex come from linear and nonlinear pathways. The linear pathway is responsible for the constant gain across frequencies at peak head velocity of 20 degrees /s and also for the phase lag at higher frequencies being less than that expected based on the reflex delay. The frequency- and velocity-dependent nonlinearity in VOR gain is accounted for by the dynamics of the nonlinear pathway. A transfer function that increases the gain of this pathway with frequency and a term related to the third power of head velocity are used to represent the dynamics of this pathway. This model accounts for the experimental findings and provides a method for interpreting responses to these stimuli after vestibular lesions.  (+info)

Horizontal vestibuloocular reflex evoked by high-acceleration rotations in the squirrel monkey. II. Responses after canal plugging. (8/829)

The horizontal angular vestibuloocular reflex (VOR) evoked by high-frequency, high-acceleration rotations was studied in four squirrel monkeys after unilateral plugging of the three semicircular canals. During the period (1-4 days) that animals were kept in darkness after plugging, the gain during steps of acceleration (3, 000 degrees /s(2), peak velocity = 150 degrees /s) was 0.61 +/- 0.14 (mean +/- SD) for contralesional rotations and 0.33 +/- 0.03 for ipsilesional rotations. Within 18-24 h after animals were returned to light, the VOR gain for contralesional rotations increased to 0. 88 +/- 0.05, whereas there was only a slight increase in the gain for ipsilesional rotations to 0.37 +/- 0.07. A symmetrical increase in the gain measured at the plateau of head velocity was noted after animals were returned to light. The latency of the VOR was 8.2 +/- 0. 4 ms for ipsilesional and 7.1 +/- 0.3 ms for contralesional rotations. The VOR evoked by sinusoidal rotations of 0.5-15 Hz, +/-20 degrees /s had no significant half-cycle asymmetries. The recovery of gain for these responses after plugging was greater at lower than at higher frequencies. Responses to rotations at higher velocities for frequencies >/=4 Hz showed an increase in contralesional half-cycle gain, whereas ipsilesional half-cycle gain was unchanged. A residual response that appeared to be canal and not otolith mediated was noted after plugging of all six semicircular canals. This response increased with frequency to reach a gain of 0.23 +/- 0.03 at 15 Hz, resembling that predicted based on a reduction of the dominant time constant of the canal to 32 ms after plugging. A model incorporating linear and nonlinear pathways was used to simulate the data. The coefficients of this model were determined from data in animals with intact vestibular function. Selective increases in the gain for the linear and nonlinear pathways predicted the changes in recovery observed after canal plugging. An increase in gain of the linear pathway accounted for the recovery in VOR gain for both responses at the velocity plateau of the steps of acceleration and for the sinusoidal rotations at lower peak velocities. The increase in gain for contralesional responses to steps of acceleration and sinusoidal rotations at higher frequencies and velocities was due to an increase in the gain of the nonlinear pathway. This pathway was driven into inhibitory cutoff at low velocities and therefore made no contribution for rotations toward the ipsilesional side.  (+info)

Strong relationships were identified between cadence and peak vertical acceleration (r = .96, P , .05) and peak loading rate (r = .98, P , .05). Regression analyses indicated cadences of 157 ± 12 steps/min (2.6 ± 0.2 steps/s) and 122 ± 10 steps/min (2.0 ± 0.2 steps/s) corresponded with the 4.9 g peak vertical acceleration and 43 BW/s peak loading rate thresholds, respectively. ...
Abstract: We study the effects of acceleration on fermionic Gaussian states of localized modes of a Dirac field. We consider two wave-packets in a Gaussian state and transform these to an accelerated frame of reference. In particular, we formulate the action of this transformation as a fermionic quantum channel. Having developed the general framework for fermions, we then investigate the entanglement of the vacuum, as well as the entanglement in Bell states. We find that with increasing acceleration vacuum entanglement increases, while the entanglement of Bell states decreases. Notably, our results have an immediate operational meaning given the localization of the modes ...
Tri-axial accelerometers are high-level output transducers requiring no additional amplification since the amplifier is built into the transducer. They
Reference: Avenirova E.D., Savin B.M., Sytinskii Ia., Effect of oxygen starvation and acceleration on the glutaminic and gamma-aminobutyric acid content in the brain tissue, Voprosy meditsinskoi khimii, 1964, vol: 10(6), 595-600 ...
Background: Aspects of physical functioning, including balance and gait, are affected after surgery for lower limb musculoskeletal tumors. These are not routinely measured but likely are related to how well patients function after resection or amputation for a bone or soft tissue sarcoma. Small, inexpensive portable accelerometers are available that might be clinically useful to assess balance and gait in these patients, but they have not been well studied.. Questions/purposes: In patients treated for lower extremity musculoskeletal tumors, we asked: (1) Are accelerometer-based body-worn monitor assessments of balance, gait, and timed up and go tests (TUG) feasible and acceptable? (2) Do these accelerometer-based body-worn monitor assessments produce clinically useful data (face validity), distinguish between patients and controls (discriminant validity), reflect findings obtained using existing clinical measures (convergent validity) and standard manual techniques in clinic (concurrent ...
Contact Instrumented Sensor Technology for acceleration data loggers, recorders and monitors for a variety of monitoring applications.
Dive into the research topics of Mobile sensor agent to acquire acceleration data for structural health monitoring. Together they form a unique fingerprint. ...
1] The first in situ sounding of a post-seismic infrasound wavefront is presented, using data from the GOCE mission. The atmospheric infrasounds following the great Tohoku earthquake (on 11 March 2011) induce variations of air density and vertical acceleration of the GOCE platform. These signals are detected at two positions along the GOCE orbit corresponding to a crossing and a doubling of the infrasonic wavefront created by seismic surface waves. Perturbations up to 11% of air density and 1.35 × 10 − 7 m/s2 of vertical acceleration are observed and modeled with two different solid-atmosphere coupling codes. These perturbations are a due to acoustic waves creating vertical velocities up to 130 m/s. Amplitudes and arrival times of these perturbations are reproduced respectively within a factor 2, and within a 60 s time window. Waveforms present a good agreement with observed data. The vertical acceleration to air density perturbation ratio is higher for these acoustic waves than for gravity ...
Abstract. Pine Island Glacier, Antarctica, has been undergoing several related changes for at least two decades; these include acceleration, thinning and grounding line retreat. During the first major ground-based study between 2006 and 2008, GPS receivers were used to monitor ice flow from 55 km to 171 km inland, along the central flowline. At four sites both acceleration and thinning rates over the last two years exceeded rates observed at any other time over the last two decades. At the downstream site acceleration was 6.4% over 2007 and thinning was 3.5±0.5 ma−1. Acceleration and thinning have spread rapidly inland with the acceleration 171 km inland at 4.1% over 2007, greater than any measured annual flow increase along the whole glacier prior to 2006. Increases in surface slope, and hence gravitational driving stress, correlate well with the acceleration and no sustained change in longitudinal stress gradient is needed to explain the force balance. There is no indication that the ...
MR Safe accelerometer for tri-axial measurements and subject feedback. This high level output transducer (±5 G) is optimal for measuring accelerations when performing slow movements, subtle gestures, or tapping responses and can be used as a feedback transducer for subjects in the MRI. The transducer provides three outputs, simultaneously measuring acceleration along the X-, Y- and Z-axes
A simply formed speed change transmission device capable of continuously changing an engine drive force in each of speed ranges classified in multiple stages by utilizing a continuously variable transmission (10) and planetary transmission mechanisms (P1, P2, P3), and clutches (C1, C2). The speed change transmission device includes a main transmission device (B) for synthesizing an output from the continuously variable transmission (10) with a drive force from an engine (1) by the first, second, and third planetary transmission mechanisms (P1, P2, P3), and outputting the synthesized drive force from an output shaft (41) through a clutch part (C) having the first and second clutches (C1, C2). The speed change transmission device further includes an auxiliary transmission device (20) for changing and outputting the drive force of the main transmission device (B) from the output shaft (41).
A high acceleration cockpit design test/evaluation program was conducted, using a full scale design aid. Alternate configurations were compared using this full scale design aid in a formally structured evaluation including mission related task elements. Test criteria considered evaluation of control/display and cockpit design options, including seat location, motion, and pilot anthropometry, with a balance between the physical and operational test measures and objectives using Air Force provided pilot subjects. (Author)*Jet fighters
Last week benchmarks were published of Intel`s New Sandy Bridge Acceleration architecture (SNA) that showed several performance improvements for 2D and 3D, but the new acceleration architecture still wasn`t mature with a few regressions compared to the normal UXA back-end. While the focus of this SNA support is on speeding up operations for Sandy Bridge (SNB) and forthcoming Ivy Bridge (IVB) hardware, SNA is supported for older Intel graphics processors too. Here are some benchmarks of the Sandy Bridge New Acceleration architecture when using the Ironlake and Gen3 back-ends. Business software left the office and moved into the home long ago. If youve ever lost the password to Word, ZIP or PDF file in misguided attempt to protect data from prying eyes, this guide to Decrypting Document and File Passwords is a life saver. PCSTATS Tips ...
You can run a series of commands on your Terminal to disable the mouse acceleration feature in Mac OS X. In this regard, here are the steps you need to follow: Step 1: Open the Terminal on your Mac computer-from the Utility folder in Applications. Alternatively, you could just press the Command + Spacebar keys combination on your keyboard to open the Spotlight Search bar.. Now type Terminal into this search bar then press the Enter key to run the search. Select Terminal-the first entry on the search results-to launch the utility tool.. Step 2: Check the current mouse acceleration setting on your computer by running the following command (Just type the command into the Terminal and then press the Enter key on the keyboard to run it):. defaults read .GlobalPreferences com.apple.mouse.scaling. This will display a hidden preference setting that you can change by altering the number at the end. If the mouse acceleration feature is enabled, the above command should display a value between 0 and 3. ...
Accumulated signal noise will cause the integrated values to drift from the true value when measuring orientation angles of wearable sensors. This work proposes a novel method to reduce the effect of this drift to accurately measure human gait using wearable sensors. Firstly, an infinite impulse response (IIR) digital 4th order Butterworth filter was implemented to remove the noise from the raw gyro sensor data. Secondly, the mode value of the static state gyro sensor data was subtracted from the measured data to remove offset values. Thirdly, a robust double derivative and integration method was introduced to remove any remaining drift error from the data. Lastly, sensor attachment errors were minimized by establishing the gravitational acceleration vector from the acceleration data at standing upright and sitting posture. These improvements proposed allowed for removing the drift effect, and showed an average of 2.1°, 33.3°, 15.6° difference for the hip knee and ankle joint flexion/extension angle,
The rank list will be prepared on the basis of the results declared by the university. So, the candidates can also check the RINL VSP Jr Medical Officer Sectional Cutoff. www.imu.ac.in IMU CET Result … Campus Placements Campus Placement Brochure 2019-20. The cut-off will be prepared on the basis of number of applicants applied for counselling, difficulty level of exam and availability of seats in the institutions. Please give the cutoff mark for general UG category. IMU CET Result 2018. I have12150 rank in imu cet can i take admission in any government collage for marrin enginiring course 4year. IMU CET 2020 exam is organised in online mode only. there is my name in the qualified student list, my rank is 319 mba/msc . The IMU has its headquarters at Chennai and has its regional campuses at Mumbai, Cochin, Visakhapatnam, and Kolkata and the new headquarters building is being worked at 300 acres of land arrive apportioned to IMU at Semmancherry, Chennai which lies in the middle of East Coast ...
Contents of the 15 Chapter for This High Performance Inertial Sensors Market Study:-. Chapter 1: to describe Global High Performance Inertial Sensors Market Introduction, product scope, market overview, market opportunities, market risk, market driving force;. Chapter 2: to analyze the top manufacturers of Global High Performance Inertial Sensors Market, with sales, revenue, and price of Global High Performance Inertial Sensors Market, in 2016 and 2017;. Chapter 3: to display the competitive situation among the top manufacturers, with sales, revenue and market share in 2016 and 2017;. Chapter 4: to show the Global High Performance Inertial Sensors market by regions, with sales, revenue and market share of Global High Performance Inertial Sensors Market, for each region, from 2012 to 2017;. Chapter 5, 6, 7, 8 and 9: to analyze the key regions, with sales, revenue and market share by key countries in these regions;. Chapter 10 and 11: to show the market by type and application, with sales market ...
Thinking Science, the Cognitive Acceleration through Science Education (CASE) curriculum, is a program designed for 11-14 year olds (in the first two years of secondary school) which encourages them to reflect on their own thinking and to develop their reasoning power in tackling novel problems. This study presents results that represent the first large-scale long-term test of the process of raising standards in schools by concentrating on a thinking skill approach. Overall, about 4,500 pupils in the CASE schools have been featured in the data in this report. Seventeen schools data have been compared with added-value data from a greater number of control schools. Results indicate that the CASE methodology, even when tried for the first time, produced an average increase on the order of half as much gain in the percentage of pupils obtaining C-grade and above at the GCSE examination (an increase from a National average of 44% to 63% for science in 1996, and an increase from 43% to 57% in ...
Can anyone run Mpv with hardware acceleration? mpv --hwdec=vdpau [FILE] I m facing the following error need to call Mpv from terminal : libva info: Trying to open usr lib64 dri nvidia_drv_ libva error: usr lib64 dri nvidia_drv_ has no function __vaDr..
SANTA CLARA, Calif., February 6, 2013 - Silver Peak Systems , a leader in accelerating data over distance, today announced its first multi-gigabit-per-second (Gbps) data acceleration solution for Windows Server Hyper-V environments. Silver Peaks virtual offering for Windows Server Hyper-V now extends from small remote offices to large data centers, giving Microsoft Corp.s
‎B2B Revenue Acceleration: The Podcast for Technology Leaders is a podcast dedicated to helping software executives stay on the cutting edge of sales and marketing in their industry. Whether youre looking to follow emerging trends in B2B technology, learn from venture capital experts about their lat…
Figure Electromechanical Market Size and CAGR 2013-2018 (Million USD) Figure Electromechanical Market Size and CAGR 2013-2018 (Volume) Figure Electromechanical Market Forecast and CAGR 2019-2025 (Million USD) Figure Electromechanical Market Forecast and CAGR 2019-2025 (Volume) Figure Digital Market Size and CAGR 2013-2018 (Million USD) Figure Digital Market Size and CAGR 2013-2018 (Volume) Figure Digital Market Forecast and CAGR 2019-2025 (Million USD) Figure Digital Market Forecast and CAGR 2019-2025 (Volume) Figure Other Digital Meters Market Size and CAGR 2013-2018 (Million USD) Figure Other Digital Meters Market Size and CAGR 2013-2018 (Volume) Figure Other Digital Meters Market Forecast and CAGR 2019-2025 (Million USD) Figure Other Digital Meters Market Forecast and CAGR 2019-2025 (Volume) Figure Power Industry Market Size and CAGR 2013-2018 (Million USD) Figure Power Industry Market Size and CAGR 2013-2018 (Volume) Figure Power Industry Market Forecast and CAGR 2019-2025 (Million USD) ...
Figure Emulsifiers Market Size and CAGR 2013-2018 (Million USD) Figure Emulsifiers Market Size and CAGR 2013-2018 (Volume) Figure Emulsifiers Market Forecast and CAGR 2019-2025 (Million USD) Figure Emulsifiers Market Forecast and CAGR 2019-2025 (Volume) Figure Enzymes Market Size and CAGR 2013-2018 (Million USD) Figure Enzymes Market Size and CAGR 2013-2018 (Volume) Figure Enzymes Market Forecast and CAGR 2019-2025 (Million USD) Figure Enzymes Market Forecast and CAGR 2019-2025 (Volume) Figure Oxidizing Agents Market Size and CAGR 2013-2018 (Million USD) Figure Oxidizing Agents Market Size and CAGR 2013-2018 (Volume) Figure Oxidizing Agents Market Forecast and CAGR 2019-2025 (Million USD) Figure Oxidizing Agents Market Forecast and CAGR 2019-2025 (Volume) Figure Reducing Agents Market Size and CAGR 2013-2018 (Million USD) Figure Reducing Agents Market Size and CAGR 2013-2018 (Volume) Figure Reducing Agents Market Forecast and CAGR 2019-2025 (Million USD) Figure Reducing Agents Market Forecast ...
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By embracing the latest technological innovations and streamlining back-office operations, retailers can accelerate their online growth and...
GROMACS is a popular choice for scientists simulating molecular interactions. With NVIDIA Tesla K40 GPUs, its common to see 2X and 3X speedups compared to the latest multi-core CPUs.
You would not make a constant-acceleration assumption in this case. You would typically do that if you had no means of measuring the systems acceleration, but you say that it is observable for your case. The most obvious way to model this system would be using the state vector. $$ \mathbf{x_k} = \left [ \begin{array}{c}x_k \\ \dot{x}_k \\ \ddot{x}_k \end{array} \right ] = \left [ \begin{array}{c}x_k \\ v_k \\ a_k \end{array} \right ] $$. where $x_k$ is the position, $v_k$ is the velocity, and $a_k$ is the acceleration of the system at time instant $k$. Since you say that you can measure the position and acceleration of the system, the measurement vector $\mathbf{z_k}$ would be:. $$ \mathbf{z_k} = \mathbf{Hx_k} + \mathbf{v_k} $$. with. $$ \mathbf{H} = \left[ \begin{array}{cc} 1 && 0 && 0 \\ 0 && 0 && 1 \end{array} \right] $$. resulting in the measurement model:. $$ \mathbf{z_k} = \left[ \begin{array}{c} x_k \\ a_k \end{array} \right] + \mathbf{v_k} $$. where $\mathbf{v_k}$ is the (Gaussian) ...
In the present paper, the magnetohydrodynamics effects on flow parameters of blood carrying magnetic nanoparticles flowing through a stenosed artery under the influence of periodic body acceleration are investigated. Blood is assumed to behave as a Casson fluid. The governing equations are nonlinear and solved numerically using finite difference schemes. The effects of stenotic height, yield stress, magnetic field, particle concentration and mass parameters on wall shear stress, flow resistance and velocity distribution are analysed. It is found that wall shear stress and flow resistance values are considerably enhanced when an external magnetic field is applied. The velocity values of fluid and particles are appreciably reduced when a magnetic field is applied on the model. It is significant to note that the presence of nanoparticles, magnetic field and yield stress tend to increase the plug core radius. Increased wall shear stress and flow resistance affects the circulation of blood in the human
For evaluating physical function or physical activity, wearable sensors must capture kinematic or dynamic dimensions such as translational and rotational accelerations, velocities and displacements or forces and moments. Sensor measurement is captured either directly or indirectly and then further processed using additional information (e.g. boundary conditions) including those of human kinetics computer models.. The most commonly-used wearable sensors are inertial measurement units (IMUs). They contain individual or combined one-, two- or three-dimensional accelerometers and gyroscopes and have become accessible regarding measurement accuracy, size, cost, energy consumption or onboard pre-processing power through mass production, for example for automotive stability programmes and smartphones. Also magnetometers, GPS and barometer sensors are available, mostly in sensor fusion with an IMU. Wearable sensors that measure forces are yet less common and in orthopaedic publications seem restricted ...
Think about the momentum in the two situations. In any closed system, momentum must be conserved. When you accelerate a car, you push the Earth in the opposite direction with exactly the same momentum. When you want to slow down (which again is acceleration, just in direction opposite to motion), you again push the Earth, and it will be accelerated in the opposite direction. Since the Earth is much more massive than the car, the acceleration on the Earth is tiny, which makes Earth easy to push from (compare jumping on concrete with jumping on a bit of foam - the concrete is almost unyielding, which gives you a lot of leverage).. The braking and acceleration are symmetric in this case - when accelerating, you make the car move faster relative to the ground, when braking, you make it slower relative to the ground. Slowing a fast thing down on a slow thing allows you to extract useful work, pretty much the same way you can extract work from, say, an interface between a high temperature and low ...
Obesity treatment and prevention in youth is challenging. Thus, we are developing the KNOWME Network, a suite of wearable, Bluetooth-enabled wireless devices for monitoring obesity-related behaviors in minority youth. Here we present the Bluetooth-enabled Accelerometer (BEA), developed to address a lack of Bluetooth-enabled, research-quality accelerometers. The BEA provides information about body movement and orientation using an accelerometer and gyroscope combination that interfaces directly with a mobile phone/computer in real time. The accuracy of BEA-based models was assessed by estimating walking speed. Purpose: To develop personalized models for estimating treadmill walking speed using the BEA. Methods: Five subjects (4 male, 1 female; age 35 ± 12) walked at 7 speeds ranging from 2.5 to 4.0 miles per hour (mph) for 5 minutes per speed while wearing the BEA on the right hip. The BEA recorded motion information with a tri-axial accelerometer and tri-axial gyroscope and transmitted it via ...
The weight of the object at the south pole is greater than its weight at the equator because the Earths gravitational acceleration at the south pole is greater than the Earths gravitational acceleration at ...
ActiGraph is dedicated to providing our clients with highly accurate, innovative, and cost effective objective monitoring solutions to help them achieve their research and clinical data collection, analysis, and management objectives. Through close collaborative relationships with our clients, we strive to proactively identify emerging trends and understand the changing landscape of our industry, allowing us to deliver cutting edge hardware, software, and data management solutions to meet the evolving needs of the scientific community.
Velocity is the rate of motion in a specified direction and acceleration is a change in an objects velocity. Both velocity and acceleration are vector quantities in that they are based on a magnitude AND a specified direction (i.e., the car is traveling north at 55 mph). Speed, on the other hand, is an objects rate of motion. Speed is a scalar quantity and is based only on a magnitude (i.e., the car is traveling at 55 mph). Whenever there is a force, there is acceleration according to Newtons second law of motion (F = ma). A force is required to change an objects speed, and a force is required to change an objects direction. Since velocity is a quantity of speed and direction, a change in an objects speed OR a change in its direction, or both cause the object to accelerate. The force can change the speed of the object without affecting its direction (linear acceleration), or the force can change the direction of the object with or without affecting its speed (centripetal ...
So lets see... If this thing lands at the same vertical height it was launched at then (Vsin theta)^2/(2*y_max)=g and the horizontal distance is Vi^2*sin(2*theta)/g and V*cos(theta)=distance in x/time. 3 equations, 3 unknowns ...
We are already familiar with the concepts of linear velocity and linear acceleration, so angular velocity and angular acceleration are not too difficult to understand. Angular velocity is, quite sim
Research was conducted involving a series of impacts on the AFRL Horizontal Impulse Accelerator HIA, as part of a research collaboration agreement between NASA and AFRL. The purpose of the effort was to evaluate and conduct a comparison of the biodynamic response of different sized ATD head and neck configurations to support the development of computational models used to evaluate crew injury risk and aid in the design of seat and restraint systems for NASAs space vehicles and USAF air vehicles. Testing was completed using a head and neck combination from a 5th Hybrid III female aerospace ATD, a 50th Hybrid III male aerospace ATD, and a 95th Hybrid III male aerospace ATD. A test matrix was developed to assess each ATD as a function of both impact orientation, magnitude of the impact acceleration input pulse 8 to 16 G dependent on impact orientation, and rise-time or time-to-peak of the impact acceleration input pulse 50 or 100 ms. Secondary independent test variables included tests with or with-out a
Disables mouse acceleration on a computer. As written, the script disables acceleration; however, if you want to enable acceleration, just change the strValue variable to = 1.
Strategy Since we know how the potential energy changes as a function of x, we can substitute for U (x) U (x) in Equation 8. You must also increase the video memory slider to at least 128 MB. Using several examples, The Physics Classroom shows how to calculate the acceleration using a free-body diagram and Newtons second law of motion. Speed and distance-time graphs Speed is measured in metres per second (m/s) or kilometres per hour (km/h). How do you find angular acceleration? Find the initial and final angular velocity in radians/s. Find the speed and position as functions of time while. Read the velocity and time at the initial and final times you used in the previous step. To find the velocity function based on displacement, use the first derivative of f(x) = 2 1. Calculate the acceleration of the bicycle in both the cases. 1% ± 1% 4 5 4-100-- AVERAGE To collect data: On the labquest, click collect, toss the ball above the motion sensor and catch it. In physics, gravitational acceleration ...
At present, the problem of population aging has become a hot spot of international concern, especially in China, and the international community urgently needs a universally applicable health care system for the elderly. Recent research shows that falling is the biggest threat to the health of the elderly. Based on thihe physiological and behavioral characteristics of the elderly, the paper discusses an algorithm for the recognition of motion state and fall detection of elderly applied to wearable devices to ensure timely rescue after a fall. The algorithm continuously acquires acceleration information during the movement of the elderly through a six-axis acceleration sensor. Firstly, the acceleration data is filtered, then the combined acceleration is calculated, and multiple features of the continuous data are extracted, and then the softmax method is used to classify the different motion states to realize the alarm of the fall. The algorithm extracts the feature vector by the magnitude of the ...
The chain of a workshop crane is 50 m long and has a mass of 3 kg/m. It is partially wound on a drum and the effective radius from the axis of the drum to the chain centre line is 0.2 m. The drum itself, including shaft and gear wheel has a mass of 100 kg and has a radius of gyration of 0.15 m. A steel block with a mass of 500 kg is to be lifted from a point 20 m below the level of the axis of the drum. If a torque of 1.3 kNm is applied to the drum, what will be the initial vertical acceleration of the steel block ...
The speed or a velocity of an object is rarely constant. For example, it is extremely unlikely that you drive at a perfectly constant speed when you travel in your car. You have to pull out of your driveway and speed up to the speed limit. You will then have to stop at red lights and then start driving again when the light turns green. You constantly change your speed when you drive.. Acceleration is changing velocity. Velocity has two components:Speed and direction. If we change the speed of an object than the acceleration of that object will change. If we change the direction of an object than the acceleration of that object will change. If we change both speed and direction of an object than the acceleration of that object will change.. To properly measure the acceleration of an object we must also account for how quickly the object changes its velocity. If the object changes velocity quickly we can say it had a very great acceleration. So acceleration can be better described as how velocity ...
The developed method for detecting physical activity types showed a high sensitivity and specificity for sitting, standing, walking, running, walking stairs, and cycling in a standardized setting and for sitting posture during free living.
We investigated the individual muscle contribution to arm motion to better understand the complex muscular coordination underlying three-dimensional (3D) reaching tasks of the upper limb (UL). The individual contributions of biceps, triceps, deltoid anterior, medius, posterior and pectoralis major to the control of specific degrees of freedom (DOFs) were examined: using a scaled musculoskeletal model, the muscle excitations that reproduce the kinematics were calculated using computed muscle control and a forward simulation was generated. During consequent perturbation analyses, the muscle excitation of selected muscles was instantaneously increased and the resulting effect on the specific DOF was studied to quantify the muscle contribution. The calculated muscle contributions were compared to the responses elicited during electrical stimulation experiments. Innovative in our findings is that muscle action during reaching clearly depended on the reaching trajectory in 3D space. For the majority of the
You use data model acceleration to accelerate all of the fields defined in a data model. When a data model is accelerated, any pivot or report generated by that data model should complete much quicker than it would without the acceleration, even if the data model represents a significantly large dataset. There are two types of data model acceleration, ad hoc and persistent. Ad hoc acceleration applies to a single dataset, is run over all time, and exists for the duration of a users pivot session, while persistent acceleration is turned on by an admin, happens in the background, and can be scoped to shorter time ranges such as a week or a month. Persistent acceleration is used any time a search is run against a dataset in an acceleration-enabled data model. Data model acceleration makes use of Splunks high performance analytics store (HPAS) technology, which, in a manner similar to that of report acceleration, builds summaries alongside the buckets in your indexes. Also like report ...
In conclusion, none of the metrics as evaluated systematically outperformed all other metrics across a wide range of standardised kinematic conditions. However, choice of metric explains different degrees of variance in daily human physical activity.
Measures taken from the chest and left leg indicate low risk of injuries to these body regions in a crash of this severity. Forces on the head when the dummy moved forward into the airbag indicate that injuries to the head would be possible. A high head acceleration occurred when the dummys head hit the window sill/B-pillar, indicating that further injuries to the head would be possible. Forces on the right tibia and acceleration on the right foot indicate that injuries to the lower leg and foot would be possible.. ...
Measures taken from the chest and left leg indicate low risk of injuries to these body regions in a crash of this severity. Forces on the head when the dummy moved forward into the airbag indicate that injuries to the head would be possible. A high head acceleration occurred when the dummys head hit the window sill/B-pillar, indicating that further injuries to the head would be possible. Forces on the right tibia and acceleration on the right foot indicate that injuries to the lower leg and foot would be possible.. ...
s, turning it on globally should not cause any adverse drawing effects. However, because hardware acceleration is not supported for all of the 2D drawing operations, turning it on might affect some of your custom views or drawing calls. Problems usually manifest themselves as invisible elements, exceptions, or wrongly rendered pixels. To remedy this, Android gives you the option to enable or disable hardware acceleration at multiple levels. See Control hardware acceleration.. If your application performs custom drawing, test your application on actual hardware devices with hardware acceleration turned on to find any problems. The Unsupported drawing operations section describes known issues with hardware acceleration and how to work around them.. Also see OpenGL with the Framework APIs and Renderscript. ...
s, turning it on globally should not cause any adverse drawing effects. However, because hardware acceleration is not supported for all of the 2D drawing operations, turning it on might affect some of your custom views or drawing calls. Problems usually manifest themselves as invisible elements, exceptions, or wrongly rendered pixels. To remedy this, Android gives you the option to enable or disable hardware acceleration at multiple levels. See Control hardware acceleration.. If your application performs custom drawing, test your application on actual hardware devices with hardware acceleration turned on to find any problems. The Unsupported drawing operations section describes known issues with hardware acceleration and how to work around them.. Also see OpenGL with the Framework APIs and Renderscript. ...
Abalkin, Leonid Ivanovich (1986). Kursom uskoreniya [The strategy of acceleration]. Moscow: Politizdat. Albuquerque, Cesar ( ... "acceleration"). Gorbachev and his team of economic advisors then introduced more fundamental reforms, which became known as ...
AD263072) Maccabee, B. (1997). Acceleration.[1] Archived December 11, 2006, at the Wayback Machine Industry Observer. // ...
This is a demonstration of cartoon physics, since such acceleration would be impossible in real life. The sequence where Bugs ... "Acceleration". Science in Popular Culture: A Reference Guide. Greenwood Publishing Group. ISBN 978-0313318221. Beck, Jerry; ...
Acceleration is defined as the rate of change of velocity with respect to time. Acceleration is the second derivative of ... In case of constant acceleration, the four physical quantities acceleration, velocity, time and displacement can be related by ... is the tangential acceleration, which is the component of the acceleration that is parallel to the motion. In contrast, the ... The area under a graph of acceleration versus time is equal to the change in velocity. The following table refers to rotation ...
However, Acceleration in Zolder, Acceleration at Paul Ricard, and Acceleration at Grobnik were cancelled on 27 June 2014 and ... Acceleration". Archived from the original on 2014-04-09. Retrieved 2014-04-27. "Welcome to Acceleration , Acceleration". ... Next to LSC, there was the Formula Acceleration 1, based on the former A1 Grand Prix, the MW-V6 Pickup Series, based on the ... Legend SuperCup (LSC) was a part of Acceleration 2014, a series of festivals combining top class car and bike racing with music ...
Acceleration. The load is accelerating but there still is a relatively large difference between impeller and turbine speed. ... During the stall and acceleration phases, in which torque multiplication occurs, the stator remains stationary due to the ... unlocking when the throttle was floored for quick acceleration or as the vehicle slowed. This feature was also present in some ... generally increasing efficiency during the acceleration phase and low efficiency in the coupling phase. The loss of efficiency ...
". "Welcome to Acceleration , Acceleration". Acceleration14.com. Retrieved 17 May 2014. "Acceleration 2014 verkrijgt FIA ... So far, he has only participated during Acceleration in Monza. It is unknown whether he will enter more races in the ... Currently, Schothorst is competing in Acceleration 2014, a multi-day festival combining top class car and bike racing with live ...
... acceleration; shock and transport shock; gunfire vibration; and random vibration. The standard describes environmental ... Method 510.6 Sand and Dust Test Method 511.6 Explosive Atmosphere Test Method 512.5 Immersion Test Method 513.7 Acceleration ...
Acceleration!" In the "Slither" episode we can hear the songs: "Why Do I Worry?" by Lay Low "What the Water Gave me" by ...
The album was released on April 1, 2008 with a symbolic title Ubrzanje! (Acceleration!). The album featured several producers: ...
"Acceleration , Awards & Grants". American Library Association. February 11, 2010. Retrieved September 22, 2022. Gilbert, ...
acceleration'). Gorbachev reinvigorated the party ideology, adding new concepts and updating older ones. Positive consequences ...
Van Ripper, A. Bowdoin (2002). "Acceleration". Science in Popular Culture: A Reference Guide. Greenwood Publishing Group. ISBN ...
"Linux Cryptographic Acceleration on an i.MX6" (PDF). Linux Foundation. February 2017. Archived from the original (PDF) on 2019- ... "Hardware Acceleration". www.veracrypt.fr. "aes - The Go Programming Language". golang.org. Retrieved 2020-06-26. Shimpi, Anand ... See Crypto API (Linux).) The following chips, while supporting AES hardware acceleration, do not support AES-NI: AMD Geode LX ... throughput from approximately 28.0 cycles per byte to 3.5 cycles per byte with AES/GCM versus a Pentium 4 with no acceleration ...
"Acceleration Sensing". IoT One. Retrieved 21 March 2017. "IoT Terms Database". IoT One. Retrieved 21 March 2017. "Quick Guide ...
"Acceleration" (PDF). Radio & Records. May 8, 1987. p. 56. Retrieved March 3, 2021. "Polish Eagles Show" (PDF). Broadcasting, ...
Verity, John W. (2012-09-19). "Non-Volatile DRAM Is Poised to Give Apps a Big Boost". Datacenter Acceleration. Archived from ...
Innovation Acceleration; Beauty Packaging; Page 14; Dec. 2012 Powder Coating: The Complete Finisher's Handbook; The Powder ...
Peter Rubin, James (2000-06-12). "Business Acceleration". Wall Street Journal. ISSN 0099-9660. Retrieved 2021-06-23. "Rave ...
The acceleration of the P90D can reach 1.1g, described by Tesla as "faster than falling". In June 2017, Tesla discontinued ... "Acceleration chart". Lambert, Fred (June 2, 2017). "Tesla will discontinue the 90 kWh battery pack next week". Electrek. ... The resulting AWD car offered comparable power and acceleration to the rear wheel drive. The 85D offered a 2% (5-mile) range ... it might take several minutes before the battery is warm enough to provide full acceleration. Biello, David. "How Tesla Motors ...
In 1980, Chandler and Blair47 showed significant increases in knee extension strength, acceleration, anaerobic capacity, time ... Increased acceleration • Increased alertness and attention to task Frati P, Kyriakou C, Del Rio A, Marinelli E, Vergallo GM, ...
Upon the German software firm SAP reporting its earnings for the same quarter totaling to €7.52 Billion, Acceleration Economy ... Acceleration Economy. Retrieved August 31, 2022. "Companies ranked by Market Cap - CompaniesMarketCap.com". companiesmarketcap. ...
In healthy people at oral therapeutic doses, amphetamine has been shown to increase muscle strength, acceleration, athletic ... In 1980, Chandler and Blair47 showed significant increases in knee extension strength, acceleration, anaerobic capacity, time ... Increased acceleration • Increased alertness and attention to task Westfall DP, Westfall TC (2010). "Miscellaneous ...
"Constant Acceleration". Retrieved 24 May 2011. U.S. Air Force Research Report no. AU ARI 93-8: LEO On The Cheap. Retrieved ... Forms of ground launch limited to a given maximum acceleration (such as due to human g-force tolerances if intended to carry ... For both Gen 1-2 systems, the mouth of the tube would be open during vehicle acceleration, with air kept out by ... space exploration and space colonization with a maximum of 3 g acceleration. One proposed design is a freestanding tower ...
Increased acceleration • Increased alertness and attention to task Acheson KJ, Zahorska-Markiewicz B, Pittet P, Anantharaman K ...
... for the same acceleration. For rugged objects, much higher accelerations may suffice, allowing a far shorter track, potentially ... Its nominal design acceleration is 5000 m/s2, for a final velocity of 112 m/s. IEEE Transactions on Magnetics, Vol Mag-18, No. ... The maximum acceleration part spaces the coils at constant distances, and synchronizes the coil currents to the bucket. In this ... Each deceleration and acceleration of the mass contributes to the momentum of the spacecraft. The lightweight, fast spacecraft ...
In healthy people at oral therapeutic doses, amphetamine has been shown to increase muscle strength, acceleration, athletic ... In 1980, Chandler and Blair47 showed significant increases in knee extension strength, acceleration, anaerobic capacity, time ... Increased acceleration • Increased alertness and attention to task "Adderall XR- dextroamphetamine sulfate, dextroamphetamine ...
Forms of acceleration Academic and social/emotional effects of acceleration Talent Search STEM acceleration Acceleration with ... This report supplies the evidence that no other educational intervention works as well as acceleration for gifted students. It ... A Nation Empowered is a national, research-based report on utilizing academic acceleration for advanced learners published by ... and includes profiles of students and families who have benefited from academic acceleration. Volume II contains the research ...
In 1980, Chandler and Blair47 showed significant increases in knee extension strength, acceleration, anaerobic capacity, time ... Increased acceleration • Increased alertness and attention to task Bracken NM (January 2012). "National Study of Substance Use ... acceleration, anaerobic exercise performance, power output at fixed levels of perceived exertion, and endurance. ...
Centripetal acceleration . Centripetal force A force acting against rotational acceleration. Centroid The average point of ... Acceleration The rate at which the velocity of a body changes with time, and the direction in which that change is acting. Acid ... Angular acceleration Is the rate of change of angular velocity. In three dimensions, it is a pseudovector. In SI units, it is ... For example, the SI unit of velocity is the metre per second, m⋅s−1; of acceleration is the metre per second squared, m⋅s−2; ...
The Health and Sustainable Development Goals Advisory Meeting in Copenhagen, Denmark, on 18-19 June 2019 discussed and revised a draft SDG guide, its associated technical resources and their applicability. The following ...
Cite this: COVID-19 Tied to Acceleration of Alzheimers Pathology - Medscape - Jul 30, 2021. ... perhaps suggesting that folks with COVID infection and neurological sequelae may have an acceleration of AD symptoms and ...
The Health and Sustainable Development Goals Advisory Meeting in Copenhagen, Denmark, on 18-19 June 2019 discussed and revised a draft SDG guide, its associated technical resources and their applicability. The following ...
Acceleration Calculator Simple acceleration unit converter Acceleration Calculator Acceleration Conversion calculator converts ... These components are called the tangential acceleration and the normal or radial acceleration (or centripetal acceleration in ... In mechanics, acceleration is the rate of change of the velocity of an object with respect to time. Accelerations are vector ... Proper acceleration, the acceleration of a body relative to a free-fall condition, is measured by an instrument called an ...
An acceleration clause is included in certain loan agreements allowing the lender to end a contract and demand payment if the ... What Is an Acceleration Clause? An acceleration clause is a contract provision that allows a lender to require a borrower to ... Acceleration Clause Explained An acceleration clause allows the lender to require payment before the standard terms of the loan ... Acceleration Covenant An acceleration covenant is a clause in certain loan agreements allowing the lender to end a contract and ...
The Mathematical Acceleration Subsystem (MASS) libraries provide an accelerated set of frequently used mathematical functions ... The Mathematical Acceleration Subsystem (MASS) libraries provide an accelerated set of frequently used mathematical functions ... Business Unit:{code:BU050,label:BU NOT IDENTIFIED},Product:{code:SSVKBV,label:Mathematical Acceleration ...
Heres the latest on the Toyota "sudden acceleration" problem:. Momentum is building for a rule requiring automakers to install ... If you got a report of sudden acceleration, youd have to take it seriously. The old saw about the driver panicking wouldnt ... My sense, though, it that there was probably a reason for that: drivers have been complaining about sudden acceleration in a ... At a Senate Commerce Committee hearing on Toyotas sudden-acceleration problem Tuesday, Sen. John D. Rockefeller IV (D-W.Va.) ...
... Speed Comparison tool Try the speed comparison tool to get a preview of the performance benefit from ... Amazon S3 Transfer Acceleration can speed up content transfers to and from Amazon S3 by as much as 50-500% for long-distance ... S3 Transfer Acceleration (S3TA) reduces the variability in Internet routing, congestion and speeds that can affect transfers, ...
... is the rate of change of the velocity of an object with respect to time. ... Acceleration is the rate of change of the velocity of an object with respect to time. ...
Using materials acceleration platforms (MAPs), also known as self-driving laboratories, the AC will rapidly design and discover ... Acceleration Consortium, University of Toronto [email protected] Sean Bettam Communications + Media Relations Specialist ... Acceleration Consortium applies artificial intelligence to discovery of advanced materials New collaboration on self-driving ... TORONTO, ON - The Acceleration Consortium, a new global collaboration between academia, industry and government, based at the ...
Similar acceleration patterns can be seen in online education, nearshoring, and remote working, to name but a few areas. All ... What we are seeing is a great acceleration of trends that existed before the crisis. For example, online deliverys volume ... Regardless of your context, given the speed at which this crisis has been unfolding and the great acceleration of trends ... Whats the unique window of opportunity this great acceleration presents for your particular business? ...
As the audience of the Next Generation Water Action SemiFinals or Finals, you have the chance to award selected teams with mentor sessions to accelerate the teams solution after our finals with your expertise, network and support ...
Position / Velocity / Acceleration. 2020 AB2. Working with a table of velocity values: Given a table of velocity values for a ... Position / Velocity / Acceleration. 2022 BC2. This problem presents the first derivatives of the x and y coordinate positions ... Position / Velocity / Acceleration. 2021 BC2. Particle motion in the coordinate plane: Given the vector-valued velocity and ... Position / Velocity / Acceleration. 2019 AB2. Velocity table: This problem involves two particles motion along the x-axis. ...
Calculating the Acceleration. *Force and Motion activity 2: Relating graphs and free body diagrams using Moving Man and Forces ... To study the dependance of time period on (i) length of the pendulum and (ii) acceleration due to gravity ... Balanced and Unbalanced Forces - What Causes Acceleration. *Ladybug Motion 2D Vector controls for circle/elliptical motion ( ...
Enabling hardware acceleration. Because some users machines may not be able to support hardware acceleration with acceptable ... To re-enable hardware acceleration, just save your work, close ArcMap and reopen it. The hardware acceleration setting will be ... To try hardware acceleration in ArcMap, go to the Customize menu and choose ArcMap Options. Go to the Data View tab. Here ... Display options for Hardware Acceleration and Remote Desktop. A big part of our efforts to improve the display performance of ...
The DPU-based Acceleration for VMware NSX solution supports leading server and DPU vendors. We continue to expand access to the ... DPU-based Acceleration for NSX runs networking and security services on Data Processing Units connected to hosts, offering ... Networking and Security Powered by SmartNICs DPU-based Acceleration for NSX Enable accelerated networking, performant security ... Utilizing accelerators on the DPU to run network overlays, network acceleration, and load balancing enhances performance while ...
Suggested for: Uniform acceleration Determine the displacement of an object moving with uniform acceleration ... Can you think of any kinematic (constant acceleration) equations that might apply? ...
Database Acceleration for AWS - Free eBook News Staff · May 25, 2020 14:46 EDT with 0 comments ... Database Acceleration for AWS - Free eBook Offered by NetApp, view their other free resources , Limited time offer ...
... it simply doesnt make sense to run a network of our size and complexity without Riverbeds optimization and SaaS Acceleration ...
Harness the power of technology to transform communications and operations.
Dont estimate acceleration by fitting a quadratic…. Dont estimate acceleration by fitting a quadratic…. 20 Nov 2012. by ... Often 2a is called the acceleration. That is because when we are talking about acceleration, it is the rate of rise that is of ... He kept harping on no acceleration and I finally told him it was a red herring and strawman to use "no SLR acceleration" to ... and I was not in dispute with him on his lack-of-acceleration point, but told him that lack of SLR acceleration to date (if it ...
Intel Acceleration Stack for Intel Xeon CPU with FPGAs Version 1.3.1 Release Notes: Intel FPGA Programmable Acceleration Card ... Intel Acceleration Stack for Intel Xeon CPU with FPGAs Version 1.3.1 Release Notes: Intel FPGA Programmable Acceleration Card ... Intel Acceleration Stack for Intel Xeon CPU with FPGAs Version 1.3.1 Release Notes: Intel FPGA Programmable Acceleration Card ... Intel Acceleration Stack for Intel Xeon CPU with FPGAs Version 1.3.1 Release Notes: Intel FPGA Programmable Acceleration Card ...
Ford Focus RS Acceleration Battle Is Brutally Tight. 8 Jan 2018, 12:54 UTC · By: Andrei Tutu / The all-wheel-drive hot ... Peugeot 208 GTi Acceleration Test Shows Little Guys Can Punch. 18 Jan 2017, 17:35 UTC · By: Vlad Mitrache / Two small cars with ... C8 Corvette Acceleration Sound Is Unmistakably V8 Rumble. 17 May 2019, 20:32 UTC · By: Mircea Panait / If you were wondering ... Continental GT V8 0-174 MPH Acceleration Battle Gets Tight. 10 Apr 2017, 21:24 UTC · By: Andrei Tutu / The most interesting bit ...
The Business Acceleration Program is funded by the Ontario Ministry of Research and Innovation, and coordinated by MaRS. ... The Business Acceleration Program (BAP) supports the growth and development of regional innovation ecosystems across Ontario. ... Launched in October 2013 as part of the Ontario Youth Jobs Strategy, the Youth Business Acceleration Program supports the ... this extension of the Business Acceleration Program equips young entrepreneurs with the tools and skills required to start and ...
Learn how to analyze and tune your software for optimal performance after it is ported to your target, post-release GPU using Intel® VTune™ Profiler.
... Share this:. *Click to share on Facebook (Opens in new window) ... Hundreds of lawsuits were filed against Toyota after the automaker began recalling millions of vehicles because of acceleration ... has moved to dismiss hundreds of lawsuits over claims stemming from sudden acceleration in its vehicles. ...
VMware Entitlement Policy Regarding Acceleration Kits , VMware BE ... DPU-based Acceleration for NSX NSX NSX Advanced Load Balancer ... Acceleration Kit (Product Set) Customers. For customers who have an active SnS contract for Acceleration Kit product sets, your ... All the individual products in the "From" Acceleration Kit are upgraded to the products in the "To" Acceleration Kit. ... defined upgrade paths offered by VMware that allow a customer to upgrade an entire Acceleration Kit to a different Acceleration ...

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