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• Simulation and Practical Investigation of a Digital PID Controller in a Servo Drive for DC Motor
  crossref Todor Iliev Nedelchev, Prodan Ivanov Prodanov 2025-07-22T18:01:37Z 置信度 0.70
• [A two-stage regulatory system for pressure-constant perfusion of coronary vessels].
  This paper describes a double-loop servo-controlled pump system for the constant-pressure perfusion of a coronary artery. Due to the transient nature of changes in coronary vasomotor tone, such a perfusion system must have a fast regulatory response. In the fi…
  pubmed Skyschally A, Schulz R, Linder C, Heusch G 1991 Jun 置信度 0.82
• Servo-controlled indenter for determining the transverse stiffness of ventricular muscle.
  Regional ventricular wall stress is a critical determinant of cardiac function. There are, however, no validated methods for accurately estimating this stress. We have shown in the isolated ventricular septum that, during steady-state indentations, the transve…
  pubmed Halperin HR, Tsitlik JE, Gelfand M, Downs J 等 1991 Jun 置信度 0.82
• Vestibular and cerebellar modulation of expiratory motor activities in the cat.
  1. The purpose of our investigation was to evaluate the hypothesis that components of the vestibular and cerebellar systems regulate efferent respiratory-modulated activities of cranial and spinal nerves. The hypothesis was based upon the observation that spin…
  pubmed Huang Q, Zhou D, St John WM 1991 May 置信度 0.82
• Effects of torque disturbances on elbow joint movements evoked in unanesthetized cats by microstimulation of the motor cortex.
  Flexion and extension movements were evoked in the elbow joint of unanesthetized cats by intracortical microstimulation (ICMS) applied to deep layers of the motor cortex (areas 4 and 6). Pulse trains with duration up to 3-4 s, current intensities of 15-50 micr…
  pubmed Kostyukov AI, Tal'nov AN 1991 置信度 0.82
• Observations on the motor control of brief teeth clenching in man.
  Without artificial feedback control, maximum voluntary isometric contractions were performed for about 1 s by six subjects. Randomly selected surface electromyograms of the anterior temporalis and masseter muscles suggested that, in some cases, the motor contr…
  pubmed Christensen LV, Carr AB, Donegan SJ, Ziebert GJ 1991 Jan 置信度 0.82
• [The effect of microstimulation of the motor cortex on the myotatic muscle reflexes of the elbow joint in the nonanesthetized cat].
  Influence of the motor cortex microstimulation on the myotatic reflexes of the elbow joint muscles was studied on unanesthetized cats. The reflexes were evoked by the servo-controlled changes in torque or joint angle. Biceps and triceps muscles were usually co…
  pubmed Tal'nov AN, Kostiukov AI 1991 置信度 0.82
• [The hysteretic properties of single-joint movements evoked in nonanesthetized cats by the method of microstimulation of the motor cortex].
  Hysteretic aftereffects in the elbow joint movements were studied on unanaesthetized cats. Flexor and extensor movements were evoked by microstimulation of the motor cortex. The cortically evoked movements were tested mechanically by applying the servo-control…
  pubmed Tal'nov AN, Kostiukov AI 1991 置信度 0.82
• Factors determining segmental reflex action in normal and decerebrate cats.
  1. In the companion paper the gain of the stretch reflex in the ankle extensor muscles of normal cats was shown to increase after decerebration. The objectives of this study were 1) to identify the origin of the increased reflex and 2) to evaluate the contribu…
  pubmed Sinkjaer T, Hoffer JA 1990 Nov 置信度 0.82
• Influence of phasic volume feedback on abdominal expiratory nerve activity.
  Our purpose was to examine the influence of phasic lung volume feedback on the activities of motor nerves innervating the diaphragm and transversus abdominis muscles during hypercapnia and hypoxia. We studied seventeen decerebrate cats that were paralyzed and …
  pubmed Fregosi RF, Bartlett D Jr, St John WM 1990 Nov 置信度 0.82
• In-series compliance of gastrocnemius muscle in cat step cycle: do spindles signal origin-to-insertion length?
  1. It has been claimed that stretch in the non-contractile (extramysial) portion of muscles is substantial, and may produce large discrepancies between the origin-to-insertion muscle length and the internal length variations 'seen' by muscle spindle endings. 2…
  pubmed Elek J, Prochazka A, Hulliger M, Vincent S 1990 Oct 置信度 0.82
• Generating precise mechanical stimuli and recording chordotonal organ discharge patterns using a microcomputer.
  A computer-controlled system for the investigation of the response properties of the tibio-femoral chordotonal organ in the locust is described. The computer is used to generate small amplitude sinusoidal movements of the tibia via a small servo-controlled mot…
  pubmed Stephen RO, Shelton PM, Bradshaw MS 1990 Jul 置信度 0.82
• Marked sex differences on a fine motor skill task disappear when finger size is used as covariate.
  Purdue Pegboard performance of 16 male and 25 female right-handed college students were compared, and results were replicated with 25 male and 28 female subjects. In agreement with the literature, women performed significantly better than men. When measures of…
  pubmed Peters M, Servos P, Day R 1990 Feb 置信度 0.82
• Adjustments of fast goal-directed movements in response to an unexpected inertial load.
  Subjects made fast goal-directed elbow flexion movements against an inertial load. Target distance was 8 or 16 cm, randomly chosen. To exert a force in the direction of the movement subjects had to activate flexors of both shoulder and elbow, but shoulder flex…
  pubmed Smeets JB, Erkelens CJ, Denier van der Gon JJ 1990 置信度 0.82
• Subclassification of non-pathological left-handers poses problems for theories of handedness.
  The throwing performance of 104 right-handers, and 96 left-handers with inconsistent and consistent hand preferences, as classified by the procedure used by Ponton (Neuropsychologia 25, 305-311, 1987), was examined. Left-handers with inconsistent hand preferen…
  pubmed Peters M 1990 置信度 0.82
• A perceptual analysis of stiffness.
  The perception of stiffness was studied in ten human subject using two servo-controlled electromagnetic linear motors with computer-controlled stiffness, one motor coupled to each wrist of the subject. Using the contralateral limb-matching procedure in which s…
  pubmed Jones LA, Hunter IW 1990 置信度 0.82
• Performance of subgroups of left-handers and right-handers.
  Fifty-three left-handers with consistent left-hand preferences (CLH), 65 left-handers with inconsistent hand preferences (ILH), and 57 right-handers (RH) were given unimanual and bimanual performance tests involving skill, speed, and strength as well as tests …
  pubmed Peters M, Servos P 1989 Sep 置信度 0.82
• Activities of pulmonary stretch receptors during ventilatory cycles without lung inflation.
  When lung inflation is temporarily withheld in paralyzed, ventilated cats with intact vagi, the activities of inspiratory motor nerves are greater during the second cycle without inflation than during the first. This response is not easily attributable to incr…
  pubmed Zhou D, St John WM, Bartlett D Jr 1989 Aug 置信度 0.82
• Space Sled--a device for the investigation of the physiological effects of weightlessness.
  Space Sled is a device for providing controlled linear acceleration stimuli in the microgravity environment of orbital flight. The scientific objectives of the experiments which used Space Sled on the D-1 Spacelab mission were to study aspects of otolith organ…
  pubmed Harry NA, Benson AJ 1989 置信度 0.82
• Biofeedback gait training system for temporal and distance factors.
  A biofeedback gait-training system has been developed which can deal with the gait problems of all subjects in any phase of rehabilitation: measurement, analysis, training and/or evaluation. The system is composed of a measuring walkway and a training walker. …
  pubmed Hirokawa S, Matsumura K 1989 Jan 置信度 0.82
• Electromechanical analogs of human reflexes.
  The conclusion to be drawn from our modeling is that the combined stretch and tendon reflexes alone can endow artificial muscle with a springlike feel as well as give it a baseline tone. In response to questions that motor physiologists often ask as to what va…
  pubmed Littman MG, Liker M, Stubbeman W, Russakow J 等 1989 置信度 0.82
• [Original survey and analysis method of the vestibulo-ocular transfer using the microcomputer. Contribution to the diagnosis of vestibular pathology].
  This report presents a new and well-tolerated technique that quickly tests the labyrinthic system by moving the head, via a helmet mounted on a servo controlled torque motor, with a sinusoidal stimulus small enough (10 to 15 degrees of amplitude) to avoid the …
  pubmed Lavalle R, Delhaye M 1989 置信度 0.82
• [Interaction of transcranial magnetic stimulation and mechanical stimuli].
  The influence of different mechanical stimuli on the excitability of spinal motoneurones was investigated in 5 different experiments using transcranial magnetic brain stimulation. A servo controlled moving coil was used to deliver rectangular mechanical stimul…
  pubmed Claus D, Mills KR, Murray NM 1988 Dec 置信度 0.82
• Respiratory-modulated activities of motor units of the facial nerve.
  The purpose of this work was to characterize the influence of activity of vagal pulmonary receptors upon the discharge pattern of motor units of the facial nerve. Decerebrate and paralyzed cats were ventilated with a servo-respirator which produced pulmonary i…
  pubmed Hwang JC, St John WM 1988 Aug 置信度 0.82
• Intraneuronal laminin-like molecule in the central nervous system: demonstration of its unique differential distribution.
  Laminin, an extracellular matrix glycoprotein rich in basement membrane, is a multifunctional molecule of approximately 1000 kDa and is known to possess a potent neurotrophic activity. Laminin-like immunoreactivity (LLI) was for the first time demonstrated in …
  pubmed Yamamoto T, Iwasaki Y, Yamamoto H, Konno H 等 1988 Mar 置信度 0.82
• Influence of pulmonary inflations on discharge of pontile respiratory neurons.
  The purpose of this study was to characterize the influence of pulmonary inflations on the discharge patterns of rostral pontile respiratory neurons. Decerebrate and paralyzed cats were ventilated with a servo-respirator which produced patterns of pulmonary in…
  pubmed St John WM 1987 Dec 置信度 0.82
• Interaction of hypercapnia and phasic volume feedback on motor control of the upper airway.
  The effect of hypercapnia on the suppression of efferent hypoglossal and recurrent laryngeal nerve activity by phasic volume feedback was studied in decerebrate paralyzed intubated cats ventilated with a phrenic-driven servo-respirator. The gain of the respira…
  pubmed Kuna ST 1987 Nov 置信度 0.82
• Influence of pulmonary inflations on discharge patterns of phrenic motoneurons.
  The purpose of this study was to assess the influence of pulmonary inflations on activities of single phrenic motoneurons. Studies were performed in decerebrate and paralyzed cats; activities of phrenic nerve and single phrenic motoneurons were recorded. Anima…
  pubmed Hwang JC, St John WM, Bartlett D Jr 1987 Oct 置信度 0.82
• A computer-controlled system to perturb the ankle joint of freely standing cats trained to maintain a given force.
  A computer-based system was developed to (1) train freely standing cats to match various target forces with the left hindlimb, (2) perturb the left ankle joint when the cat was maintaining a desired force and (3) compare reflex responses before and after decer…
  pubmed Sinkjaer T, Hoffer JA 1987 Oct 置信度 0.82
• Alterations of hypoglossal motoneuronal activities during pulmonary inflations.
  Preventing pulmonary inflation during inspiration results in greater augmentations in activity of the hypoglossal nerve than in the phrenic nerve. Our purpose was to characterize the hypoglossal motoneuronal activities which underlie these augmentations. Activ…
  pubmed Hwang JC, St John WM 1987 Sep 置信度 0.82
• Spinal inhibition of phrenic motoneurones by stimulation of afferents from leg muscle in the cat: blockade by strychnine.
  1. Phrenic nerve responses to stimulation of calf muscle receptors or their afferents were studied in paralysed high (C1) spinal cats whose phrenic nerve activity was evoked by activation of the intercostal-to-phrenic reflex. End-tidal PCO2 was maintained at a…
  pubmed Eldridge FL, Millhorn DE, Waldrop T 1987 Aug 置信度 0.82
• A ladder paradigm for studying skilled and adaptive locomotion in the cat.
  A circular horizontal ladder is described which is suitable for studying skilled and adaptive locomotion in the cat. Four mechanisms built into the ladder require the animal to adapt its normal walking by making either corrective manoeuvres following an unpred…
  pubmed Amos A, Armstrong DM, Marple-Horvat DE 1987 Aug 置信度 0.82
• Coronary artery stenosis controlled by distal perfusion pressure: description of the servo-system and time-dependent changes in regional myocardial blood flow.
  An animal model for the induction of coronary artery stenosis is described. In this model the degree of stenosis, as induced with commercially available hydraulic occluders, can be easily controlled by keeping constant the mean perfusion pressure (pcor) distal…
  pubmed Prinzen FW, Alewijnse R, van der Vusse GJ, Kruger RT 等 1987 Jul-Aug 置信度 0.82
• A system for the analysis of posture and stance in quadrupeds.
  This paper describes a system for the quantitative analysis of posture and stance in the freely standing quadruped. The focal point of the system is a moving force platform operated by hydraulic servos under computer control. Cats are trained to stand on a sup…
  pubmed Macpherson JM, Lywood DW, Van Eyken A 1987 May 置信度 0.82
• A phrenic nerve-actuated electronically controlled positive-pressure ventilator.
  We have constructed an electronically controlled positive-pressure ventilator actuated by phrenic neural activity for use in open-chested or paralyzed experimental animals for the study of breathing pattern. A Bird Mark 14 positive-pressure ventilator was modi…
  pubmed Schertel ER, Schneider DA, Howard DL, Green JF 1987 May 置信度 0.82
• Systems for producing precise movements of a joint over a wide range of speeds and displacements for tests of a static-position sense.
  This report describes 3 types of apparatus that were used to produce precise movements of a joint over a wide range of speeds and angles. The designs feature an ability for ultra slow rotation of the joint (fractions of a degree per min) with a minimum of extr…
  pubmed Clark FJ, Burgess RC 1987 Mar 置信度 0.82
• A model of the motor servo: incorporating nonlinear spindle receptor and muscle mechanical properties.
  A model for the stretch reflex is proposed incorporating a nonlinear description of muscle receptor behavior, a delay in the reflex loop and a model of muscle mechanical properties. The model adequately describes the nonlinear response properties of EMG and fo…
  pubmed Gielen CC, Houk JC 1987 置信度 0.82
• Reflex pathways from group II muscle afferents. 3. Secondary spindle afferents and the FRA: a new hypothesis.
  A hypothesis is forwarded regarding the role of secondary spindle afferents and the FRA (flexor reflex afferents) in motor control. The hypothesis is based on evidence (cf. Lundberg et al. 1987a, b) summarized in 9 introductory paragraphs. Group II excitation.…
  pubmed Lundberg A, Malmgren K, Schomburg ED 1987 置信度 0.82
• The force-velocity relation of the rabbit digastric muscle.
  In 30 animals, the digastric was made to pull actively against a slide loaded by a servo-controlled linear motor. Force and velocity were recorded at the end of active shortening to the in-situ (jaw-closed) muscle length. Passive and active force-length relati…
  pubmed Anapol FC, Muhl ZF, Fuller JH 1987 置信度 0.82
• Increased active elastic stiffness in tetanized papillary muscles from hypertrophied rabbit hearts.
  Studies of skeletal muscle suggest that the ratio of stiffness to tension will increase in the presence of a slower rate of crossbridge head rotation from the attached perpendicular state (non-force generating) to the attached 45 degree angle state (force gene…
  pubmed Hultgren PB, Hamrell BB 1986 Sep-Oct 置信度 0.82
• [Description of electromyograms using a mathematical model of single joint movement].
  A mathematical model for motor control over one-joint fast and slow movements is proposed based on the equilibrium point (EP) hypothesis. Equations describing a reaction of the muscle with its servo to an EP shift are presented. EMG level is estimated as a fun…
  pubmed Abdusamatov RM, Fel'dman AG 1986 May-Jun 置信度 0.82
• Inhibition of inspiratory upper airway motoneuron activity by phasic volume feedback.
  The effects of phasic volume feedback on efferent hypoglossal, recurrent laryngeal and phrenic nerve activity were studied in decerebrate, paralyzed intubated cats ventilated with a phrenic-driven servo-respirator. The gain of the respirator was altered for si…
  pubmed Kuna ST 1986 Apr 置信度 0.82
• The Newmarket pump: a new suction pump for external negative pressure ventilation.
  A new electronically controlled pump has been developed for use with a cuirass in providing external negative pressure ventilation. It is smaller, lighter, and more versatile than currently available pumps and operates on a servo principle. A rotary valve betw…
  pubmed Kinnear WJ, Shneerson JM 1985 Sep 置信度 0.82
• Servo-controlled air pump for calibration of respiratory measurement systems.
  We describe a servo-controlled piston pump driven by a stepping motor. The analogue controller is a single non-linear second-order feedback loop with adjustable speed and acceleration limits. This system, designed to simulate slowly-moving, active and non-line…
  pubmed Saumon G, Loiseau A, Delavault E 1985 Apr 置信度 0.82
• Simulated spontaneous breathing. A new model for testing anaesthetic circuits.
  A carbon-dioxide-producing lung model capable of simulating spontaneous breathing is presented. It consists of a piston in a cylinder, a mixing chamber and a dead space volume. The piston is driven by a direct-current motor controlled by a micro-processor and …
  pubmed Zetterström H, Jonsson LO, Kronander H 1985 Apr 置信度 0.82
• The regulation of flow of pulmonary fluid in fetal sheep.
  The flow of fluid within the trachea of fetal sheep (121-135 days) has been measured using a newly developed flowmeter. The flowmeter, which is basically a miniature servo-controlled peristaltic pump, is connected in series with an extra-corporeal tracheal loo…
  pubmed Harding R, Sigger JN, Wickham PJ, Bocking AD 1984 Jul 置信度 0.82
• Dependence of EMG responses evoked by imposed wrist displacements on pre-existing activity in the stretched muscles.
  The relationship between the segmented EMG activity in flexor carpi radialis evoked by imposed angular wrist displacement was studied with respect to the level of pre-existing background activity in 30 normal human subjects. Input-output response planes demons…
  pubmed Bedingham W, Tatton WG 1984 May 置信度 0.82
• The dependence of force and shortening velocity on substrate concentration in skinned muscle fibres from Rana temporaria.
  The force-velocity relation was determined in fully activated skinned fibres from frog muscle at concentrations of the substrate, magnesium adenosine triphosphate (MgATP), ranging from 10 microM to 10 mM. The ionic strength of the solutions was 200 mM, tempera…
  pubmed Ferenczi MA, Goldman YE, Simmons RM 1984 May 置信度 0.82
• Diagnosis of cavernous haemangiomas by computed tomography and angiography.
  Computed tomography and angiographical findings of cavernous haemangiomas of the brain are reported on the basis of six cases of the authors, and a review of the literature. Computed tomography showed well demarcated, round densities with tiny calcifications, …
  pubmed Servo A, Porras M, Raininko R 1984 置信度 0.82
• Response of respiratory motoneurons to release from vagal inhibition in the rabbit.
  Long-lasting effects of vagal input on phrenic (Phr) and external intercostal (EI) motoneuronal output were studied on 16 anesthetized rabbits breathing spontaneously or paralysed and ventilated by a phrenic nerve-driven pump. Withholding of ventilation by tra…
  pubmed Budzińska K, Głowicki K, Romaniuk JR 1984 置信度 0.82
• Viscoelastic properties of the wrist motor servo in man.
  Viscoelastic properties play an important role in posture and movement. Such properties arise from muscle mechanics and from stretch-reflex actions. We describe experiments designed to characterize both linear and nonlinear elastic and viscous properties of th…
  pubmed Gielen CC, Houk JC, Marcus SL, Miller LE 1984 置信度 0.82
• Mechanical behavior of pressurized in vitro prearteriolar vessels determined with a video system.
  The muscular resistance arteries of the mesentery and brain serve two different control functions in the cardiovascular system. The former are representative vessels of vascular beds that influence total peripheral resistance and blood pressure; the latter are…
  pubmed Halpern W, Osol G, Coy GS 1984 置信度 0.82
• Integrity of arterial endothelium following acute exposure to high shear stress.
  Shear-induced injury or denudation of arterial endothelium has been implicated in atherogenesis. This study reports on an in vitro technique for imposing high, controlled shear stresses on endothelium. Samples of dog aorta were mounted in a chamber so that the…
  pubmed Langille LB 1984 置信度 0.82
• Interpretation of fusimotor activity in cat masseter nerve during reflex jaw movements.
  Simultaneous recordings were made from fusimotor axons in the central ends of filaments of the masseter nerve, and from masseter and temporalis spindle afferents in the mesencephalic nucleus of the fifth cranial nerve in lightly anaesthetized cats. Fusimotor a…
  pubmed Gottlieb S, Taylor A 1983 Dec 置信度 0.82
• Response to sudden torques about ankle in man: V effects of peripheral ischemia.
  Sudden dorsiflexions and plantar flexions of the foot were imposed by a torque motor while blood flow to the lower leg was occluded by a sphygmomanometer cuff. Seated subjects were instructed to resist the torques and restore the foot to its original position …
  pubmed Gottlieb GL, Agarwal GC, Jaeger RJ 1983 Jul 置信度 0.82
• A new simulation method to deduce fusimotor activity from afferent discharge recorded in freely moving cats.
  Direct recordings from identified and classified fusimotor gamma-motoneurons in freely moving animals have not so far been achieved, and present knowledge on fusimotor activity during natural movements is based on qualitative inferences made from spindle affer…
  pubmed Hulliger M, Prochazka A 1983 Jun 置信度 0.82
• Acute and chronic servo-control of renal perfusion pressure.
  We describe a servo-control system for acute and chronic regulation of renal perfusion pressure or pressures in other parts of the circulation. The system employs a Dacron-reinforced inflatable silastic occluder of sufficient strength and durability to produce…
  pubmed Hester RL, Granger JP, Williams J, Hall JE 1983 Apr 置信度 0.82
• The behaviour of the long-latency stretch reflex in patients with Parkinson's disease.
  The size of the long-latency stretch reflex was measured in a proximal (triceps) and distal (flexor pollicis longus) muscle in 47 patients with Parkinson's disease, and was compared with that seen in a group of 12 age-matched normal control subjects. The patie…
  pubmed Rothwell JC, Obeso JA, Traub MM, Marsden CD 1983 Jan 置信度 0.82
• Effect of fusimotor stimulation on ia discharge during shortening of cat soleus muscle at different speeds.
  1. In barbiturate-anaesthetized cats, the L7 and S1 dorsal and ventral roots were dissected to isolate functionally single afferents identified as primary endings of soleus muscle spindles, and motor filaments which exerted a fusimotor action on the afferents …
  pubmed Appenteng K, Prochazka A, Proske U, Wand P 1982 Aug 置信度 0.82
• [On vibration hazards of chipping-hammer operators in an iron foundry. Part 2. Results of the hygienic control].
  We previously reported that the working and health conditions of vibrating tool operators in an iron foundry were investigated in 1975 and vibration hazards were observed to occur frequently in workers operating chipping-hammers powered by compressed air. Afte…
  pubmed Harada N, Matsumoto T, Yamada S, Kobayashi F 1982 Jan 置信度 0.82
• [Characteristics of the innervation of various muscles in the ear, nose and throat area].
  This study shows different aspects of the innervation of some striated muscles. It appears that neuromuscular spindles are not present in all skeletal muscles. Some muscles of the oto-rhino-laryngological region lack spindles whilst their direct antagonists po…
  pubmed Winckler G 1982 置信度 0.82
• [Peculiarities of the innervation of some muscles in the oto-rhino-laryngological region].
  This study shows different aspects of the innervation of some striated muscles. It appears that neuromuscular spindles are not present in all skeletal muscles. Some muscles of the oto-rhino-laryngological region lack spindles whilst their direct antagonists po…
  pubmed Winckler G 1982 置信度 0.82
• Transcortical reflexes and servo control of movement.
  Sherrington proposed that the major role of proprioceptors is in processing afferent inputs generated by the active movements of the animal itself, and noted that the reflex effects of proprioceptive inputs are "mild." Current experimental results are consiste…
  pubmed Evarts EV, Fromm C 1981 Jul 置信度 0.82
• Comparison of monosynaptic tendon reflexes during preparation for ballistic or ramp movement.
  Mechanism which underlie preparation for movement were studied in man using the method of 'monosynaptic tendon reflexes' during the preparatory period (PP) preceding the execution of ramp or ballistic tracking movements. Reflex reactivity is more important dur…
  pubmed Bonnet M 1981 Apr 置信度 0.82
• Spinal inhibition of phrenic motoneurones by stimulation of afferents from peripheral muscles.
  1. Phrenic nerve responses to stimulation of calf muscle receptors or their afferents were studied in two groups of cats. One consisted of paralysed, vagotomized and functionally glomectomized animals with intact central nervous systems. The other included par…
  pubmed Eldridge FL, Gill-Kumar P, Millhorn DE, Waldrop TG 1981 Feb 置信度 0.82
• Effects of calcium and ionic strength on shortening velocity and tension development in frog skinned muscle fibres.
  1. The influence of Ca2+ concentration and ionic strength on the maximum velocity of shortening (Vmax) and the tension generating capability of frog skinned muscle fibres has been studied at temperatures between 1 and 10 degrees C. 2. Fibre segments were mount…
  pubmed Julian FJ, Moss RL 1981 Feb 置信度 0.82
• The tremor in fatigue.
  After a maximal voluntary effort made for about 2 min, tremor of the muscles concerned is increased in amplitude by up to one order of magnitude for a period of several hours afterwards. Spectral analysis reveals that all frequencies of tremor show this increa…
  pubmed Lippold O 1981 置信度 0.82
• Effect of thumb anaesthesia on weight perception, muscle activity and the stretch reflex in man.
  1. We have confirmed the results of Gandevia & McCloskey (1977) on the effect of thumb anaesthesia on perception of weights lifted by the thumb. Weights lifted by flexion feel heavier and weights lifted by extension feel lighter. 2. The change in size of t…
  pubmed Marsden CD, Rothwell JC, Traub MM 1979 Sep 置信度 0.82
• The responses of muscle spindle afferents during voluntary tracking movements in man. Load dependent servo assistance?
  pubmed Hulliger M, Vallbo AB 1979 Apr 27 置信度 0.82
• Beats produced between a rhythmic applied force and the resting tremor of Parkinsonism.
  Rhythmic forces have been applied to the wrist of patients with Parkinsonism tremor by means of a printed motor. The tremor rate was not altered to that of the applied force. On the contrary, beats were established, the rate of which depended on the difference…
  pubmed Walsh EG 1979 Jan 置信度 0.82
• Input-output properties of motor unit responses in muscles stretched by imposed displacements of the monkey wrist.
  Reflex responses are "servo-like" where the output is graded with the input or are "triggered" where the output is independent of input once an input threshold is exceeded. Imposed displacements of monkey or human upper limb joints result in prolonged EMG outp…
  pubmed Tatton WG, Bawa P 1979 置信度 0.82
• Myoinositol and function of peripheral nerves in human diabetics. A controlled clinical trial.
  Fifty-nine diabetic patients participated in a double-blind study in order to evaluate the efficiency of myoinositol to improve the function of peripheral nerves. Myoinositol in the amounts given was not able to change motor conduction velocity or vibratory pe…
  pubmed Gregersen G, Børsting H, Theil P, Servo C 1978 Oct 置信度 0.82
• Servo control of end-tidal CO2 in paralyzed animals.
  We are reporting an electronic circuit which uses the peak end-tidal CO2 signal from a rapid infrared CO2 analyzer to vary the motor rate of a fixed volume respirator. It contains variable gain and a lag compensation network which permits critical damping to p…
  pubmed Smith DM, Mercer RR, Eldridge FL 1978 Jul 置信度 0.82
• Intersegmental reflex coordination by a single joint receptor organ (CB) in rock lobster walking legs.
  In the decapod Crustacea, Palinurus vulgaris and Fasus lalandii, the reflex influences of one particular proprioceptor organ, the coxo-basal chordotonal organ (CB), on all the muscles operating the proximal and distal joints of the same leg, have been analysed…
  pubmed Clarac F, Vedel JP, Bush BM 1978 Apr 置信度 0.82
• Servo-like responses of motoneurones mediating the functional stretch reflex in the wrist flexors and extensors of monkey and man [proceedings].
  pubmed Bawa P, Tatton WG 1977 Dec 置信度 0.82
• Changes in motor commands, as shown by changes in perceived heaviness, during partial curarization and peripheral anaesthesia in man.
  1. The centrally generated ;effort' or direct voluntary command to motoneurones required to lift a weight was studied using a simple weight-matching task when the muscles lifting a reference weight were weakened. This centrally generated input to motoneurones …
  pubmed Gandevia SC, McCloskey DI 1977 Nov 置信度 0.82
• The effect of lesions of the sensorimotor cortex and the capsular pathways on servo responses from the human long thumb flexor.
  Lesions of the sensorimotor cortex, or of the capsular pathways beneath it, caused (with one exception out of 14 cases) diminution "r loss of the servo responses in the thumb, which are based on the long-latency stretch reflex. When not absent the long-latency…
  pubmed Marsden CD, Merton PA, Morton HB, Adam J 1977 Sep 置信度 0.82
• Oscillation of the human ankle joint in response to applied sinusoidal torque on the foot.
  1. Low-frequency (3-30 Hz) oscillatory rotation of the ankle joint in plantarflexion-dorsiflexion was generated with a torque motor. Torque, rotation about the ankle and electromyograms (e.m.g.s) for the gastrocnemius-soleus and the anterior tibial muscles wer…
  pubmed Agarwal GC, Gottlieb GL 1977 Jun 置信度 0.82
• Long-loop reflexes in the tranquilized monkey.
  EMG responses to sudden displacement of the forelimb were studied in Cebus monkeys tranquilized with Atravet, a phenothiazine tranquilizer. The monkey's forearm was strapped firmly to a manipulandum handle. A torque motor attached at the pivot point of the han…
  pubmed Cooke JD, Eastman MJ 1977 Apr 21 置信度 0.82
• The effect of posterior column lesions on servo responses from the human long thumb flexor.
  Lesions of the posterior column pathways, in which muscle spindle afferents run towards the brain, are associated with loss of servo responses in the long flexor of the thumb, in the absence of motor weakness and with tendon jerks preserved. This evidence is c…
  pubmed Marsden CD, Merton PA, Morton HB, Adam J 1977 Mar 置信度 0.82
• Studies on reflex control of breathing in pigs and baboons.
  In 8 pigs and 4 baboons, spontaneously breathing, anaesthetized with halothane, Hering-Breuer reflex was tested by means of a total obstruction of the airway preventing either inspiration or expiration. Subsequently animals were paralysed and maintained on phr…
  pubmed Huszczuk A, Jankowska L, Kulesza J, Ryba M 1977 置信度 0.82
• Servo respirator constructed from a positive-pressure ventilator.
  We have constructed an electronically controlled respirator from three commercially available components: a positive-pressure ventilator, a recorder pen motor, and a differential amplifier. Using negative feedback derived from a tracheal pressure signal, the i…
  pubmed Remmers JE, Gautier H 1976 Aug 置信度 0.82
• Servo action in the human thumb.
  1. The servo-like properties of muscle in healthy human subjects have been studied by interfering unexpectedly with flexion movements of the top joint of the thumb. This movement is carried out by the flexor pollicis longus muscle only. 2. The movements were s…
  pubmed Marsden CD, Merton PA, Morton HB 1976 May 置信度 0.82
• Variation of muscle stiffness with force at increasing speeds of shortening.
  Single frog skeletal muscle fibers were attached to a servo motor and force transducer by knotting the tendons to pieces of wire at the fiver insertions. Small amplitude, high frequency sinusoidal length changes were then applied during tetani while fibers con…
  pubmed Julian FJ, Sollins MR 1975 Sep 置信度 0.82
• Why transcortical reflexes?
  Experiments in humans and in monkeys have indicated that load perturbations, occurring during voluntary movements and postural activity, may be automatically compensated for. Overall muscle stiffness opposing load changes is determined by the visco-elastic pro…
  pubmed Wiesendanger M, Rüegg DG, Lucier GE 1975 Aug 置信度 0.82
• Responses to load disturbances in human shoulder muscles: the hypothesis that one component is a pulse test information signal.
  Human motor control has been investigated by applying displacements acting to rotate the shoulder while the subject was endeavouring to maintain a constant position against a pre-existing force delivered by a system of finite stiffness. Four separate stages of…
  pubmed Allum JH 1975 Mar 27 置信度 0.82
• Motor cortex reflexes associated with learned movement.
  In primates, sensory input can generate reflex motor cortex output in association with learned movement when the sensory input has a strong and direct connection to the motor cortex-for example, when a stimulus calling for repositioning of the hand consists of…
  pubmed Evarts EV 1973 Feb 2 置信度 0.82
• [G. I. Sidorenko and A. D. Semenenko's article "A physiological model of a servo system of human motor coordination and its use in hygiene research"].
  pubmed Khvedelidze MA 1972 Jul 置信度 0.82
• [Statical and dynamic studies of servo-motor and antennae].
  pubmed Schiele J 1972 Jun 置信度 0.82
• Automatic photoelastimeter for determining very small dilatations.
  A sensitivity of 0.03-mmicro birefringence is achieved by the introduction of a plastic disk (~6-mmicro birefringence) rotated at 30 Hz to modulate the birefringence at 60 Hz and a suitable detector. Two components are found in the detector signal: the one (12…
  pubmed Primak W, Kampwirth R 1971 Feb 1 置信度 0.82
• Conception of the development of the motor organization in child with reference to cerebral palsy and its therapy.
  It is often put forwards that the motor behaviour may be explained on the basis of motor patterns defined with reference to metric space. Merton, who interpretes the gamma loop as a length servo-mechanism, gives a neurophysiological basis to the above concepti…
  pubmed Tabary JC, Tardieu G, Tardieu C 1970 置信度 0.82
• Thresholds of cortical activation of muslce spindles and alpha motoneurones of the baboon's hand.
  1. Much current thinking about voluntary movement assumes that the segmental gamma loops can function as a servomechanism operated by the brain. However, the alpha motoneurones of the baboon's hand receive a powerful monosynaptic (CM) projection from the prece…
  pubmed Koeze TH, Phillips CG, Sheridan JD 1968 Mar 置信度 0.82
• Intrinsic feedback factors producing inertial compensation in muscle.
  An attempt was made to determine the factors causing the load-inertia compensation that has been observed in skeletal muscle. Cat skeletal muscle force output was determined as a function of the two variables, length and stimulus pulse rate. The results were r…
  pubmed Partridge LD 1967 Nov 置信度 0.82
• Application of servo theory to a manual repetitive operation.
  pubmed Suggs CW 1967 Oct 置信度 0.82
• The reflex excitation of the soleus muscle of the decerebrate cat caused by vibbration applied to its tendon.
  1. Vibration was applied longitudinally to the fully innervated soleus muscle of the decerebrate cat by attaching its tendon to a vibrator. Vibration at frequencies of 50-500/sec with amplitudes of 10 mu upwards caused the muscle to contract reflexly for as lo…
  pubmed Matthews PB 1966 May 置信度 0.82
• A recording sampling system for measuring laser energy.
  An apparatus has been designed and built which simultaneously measures the energy incident on a biological system which is being exposed to a laser beam. The advantages of the direct reading system are: (1) no attention is required of the laser operator, (2) a…
  pubmed Williams RC, Mueller HA 1966 Jan 1 置信度 0.82
• Measurement of uterine activity in vitro by integrating muscle tension.
  Spontaneous or electrically stimulated activity of the uterus is measured isometrically in vitro by integrating tension against time. Uterine contractions move the operating rod of a potentiometer transducer, the output voltage from which is coupled to an elec…
  pubmed STYLES PR, SULLIVAN TJ 1962 Aug 置信度 0.82
• Continuous servo motor integration of the electrical activity of the brain and its application to the control of cyclopropane anesthesia.
  pubmed BELLVILLE JW, ARTUSIO JF Jr, BULMER MW 1954 May 置信度 0.82
• Servo-motor integration of the electrical activity of the brain and its applications to the automatic control of narcosis.
  pubmed VERZEANO M 1951 Feb 置信度 0.82
• Perancangan dan Implementasi Prototipe Sistem Smart Parking Berbasis Internet of Things Menggunakan Sensor Infrared dan ESP32 (Studi Kasus: Asia Plaza Sumedang)
  Keterbatasan informasi ketersediaan slot parkir secara waktu nyata (real-time) menjadi faktor utama penyebab antrean kendaraan dan kemacetan di area komersial seperti Asia Plaza Sumedang. Penelitian ini bertujuan untuk merancang dan mengimplementasikan sebuah …
  datacite Risna Febriana 2026 置信度 0.66 Automated software engineering