机器人零部件 · 全部实体（第 38 / 100 页）

本页收录第 3701–3800 条，共 10000 条 · 返回 机器人零部件 首页

• Complete low-cost implementation of a teleoperated control system for a humanoid robot.
  Humanoid robotics is a field of a great research interest nowadays. This work implements a low-cost teleoperated system to control a humanoid robot, as a first step for further development and study of human motion and walking. A human suit is built, consistin…
  pubmed Cela A, Yebes JJ, Arroyo R, Bergasa LM 等 2013 Jan 24 置信度 0.82
• Adaptive PIF control for permanent magnet synchronous motors based on GPC.
  To enhance the control performance of permanent magnet synchronous motors (PMSMs), a generalized predictive control (GPC)-based proportional integral feedforward (PIF) controller is proposed for the speed control system. In this new approach, firstly, based on…
  pubmed Lu S, Tang X, Song B 2012 Dec 24 置信度 0.82
• A novel approach for normalizing the photoreflectance spectrum by using polymer-dispersed liquid crystal.
  This study developed a novel type of normalization procedure for modulation reflectance spectroscopy experiments to obtain the relative change in the reflectance spectrum, ΔR/R. This technique uses a polymer-dispersed liquid crystal to ensure that the dc…
  pubmed Liao YF, Chang CC, Wang DP, Tseng BH 等 2012 Oct 置信度 0.82
• Beat to beat 3-dimensional intracardiac echocardiography: theoretical approach and practical experiences.
  Three-dimensional (3D)-imaging provides important information on cardiac anatomy during electrophysiological procedures. Real-time updates of modalities with high soft-tissue contrast are particularly advantageous during cardiac procedures. Therefore, a beat t…
  pubmed Stapf D, Franke A, Schreckenberg M, Schummers G 等 2013 Apr 置信度 0.82
• Can proprioceptive training improve motor learning?
  Recent work has investigated the link between motor learning and sensory function in arm movement control. A number of findings are consistent with the idea that motor learning is associated with systematic changes to proprioception (Haith A, Jackson C, Mial R…
  pubmed Wong JD, Kistemaker DA, Chin A, Gribble PL 2012 Dec 置信度 0.82
• The effects of voluntary movements on auditory-haptic and haptic-haptic temporal order judgments.
  In two experiments we investigated the effects of voluntary movements on temporal haptic perception. Measures of sensitivity (JND) and temporal alignment (PSS) were obtained from temporal order judgments made on intermodal auditory-haptic (Experiment 1) or int…
  pubmed Frissen I, Ziat M, Campion G, Hayward V 等 2012 Oct 置信度 0.82
• Neurogenic orthostatic hypotension as the initial feature of Parkinson disease.
  Autonomic failure is a common finding in patients with Parkinson disease (PD). Here we describe a patient with PD in whom autonomic symptoms began 3 years before motor deficits.
  pubmed Milazzo V, Di Stefano C, Servo S, Zibetti M 等 2012 Aug 置信度 0.82
• Rapid measurement of a high step microstructure with 90° steep sidewall.
  A prototype STM system with high aspect ratio measurement capability is developed to fulfill accurate profile measurement of a high step microstructure with 90° steep sidewall. Distinguished from the traditional STM, the new system consists of a long rang…
  pubmed Ju BF, Chen YL, Zhang W, Fang FZ 2012 Jan 置信度 0.82
• Mechanisms and models of postural stability and control.
  Though simple in appearance, postural stabilization is a complex neuromuscular task requiring coordination among multiple joints. Mechanisms of postural stability and control in the body include supraspinal processes responsible for anticipatory postural adjus…
  pubmed Iqbal K 2011 置信度 0.82
• Respiratory rate detection using a wearable electromagnetic generator.
  Wearable health and fitness monitoring systems are a promising new way of collecting physiological data without inconveniencing patients. Human energy harvesting may be used to power wearable sensors. In this paper, we explore this zero-net energy biosensor co…
  pubmed Padasdao B, Boric-Lubecke O 2011 置信度 0.82
• Robust and cooperative image-based visual servoing system using a redundant architecture.
  The reliability and robustness of image-based visual servoing systems is still unsolved by the moment. In order to address this issue, a redundant and cooperative 2D visual servoing system based on the information provided by two cameras in eye-in-hand/eye-to-…
  pubmed Garcia-Aracil N, Perez-Vidal C, Sabater JM, Morales R 等 2011 置信度 0.82
• Development of a multisensor-based bio-botanic robot and its implementation using a self-designed embedded board.
  This paper presents the design concept of a bio-botanic robot which demonstrates its behavior based on plant growth. Besides, it can reflect the different phases of plant growth depending on the proportional amounts of light, temperature and water. The mechani…
  pubmed Chang CL, Sie MF, Shie JL 2011 置信度 0.82
• Contributions of feed-forward and feedback strategies at the human ankle during control of unstable loads.
  The nervous system can regulate the mechanical properties of the human ankle through feed-forward mechanisms such as co-contraction and rapid feedback mechanisms such as stretch reflexes. Though each of these strategies may contribute to joint stability, it is…
  pubmed Finley JM, Dhaher YY, Perreault EJ 2012 Mar 置信度 0.82
• Development of a measurement and feedback training tool for the arm strokes of high-performance luge athletes.
  Previous studies have shown that the start plays a critical role in sliding events and explains more than 55% of the variance of the final time in luge. Experts evaluate the contribution of the arm strokes to be 23% of the total starting performance. The aim o…
  pubmed Lembert S, Schachner O, Raschner C 2011 Dec 置信度 0.82
• An assessment of the vestibulo-ocular reflex (VOR) in persons with Down syndrome.
  Down syndrome (DS), the most common genetically defined cause of intellectual disability, is the phenotypic consequence of a supernumerary chromosome 21. Persons with DS commonly display deficits in visuomotor integration, motor coordination, and balance. Desp…
  pubmed Costa AC 2011 Oct 置信度 0.82
• [Calculation of parameters and accurate control with real-time compensator in drive system of pulsatile blood pump].
  This article introduces a new method using the servo motor which is controlled by ARM microcontroller to provide power for a pulsatile blood pump to beat. This method is featured with straightforward structure, accurate control, excellent timeliness, stable pe…
  pubmed Cao Y, Pan G, Zang W, Bai J 2011 Mar 置信度 0.82
• Short range stiffness elastic limit depends on joint velocity.
  Muscles behave as elastic springs during the initial strain phase, indicated as short range stiffness (SRS). Beyond a certain amount of strain the muscle demonstrates a more viscous behavior. The strain at which the muscle transits from elastic- to viscous-lik…
  pubmed de Vlugt E, van Eesbeek S, Baines P, Hilte J 等 2011 Jul 28 置信度 0.82
• Strong stabilization servo controller with optimization of performance criteria.
  Synthesis of a simple robust controller with a pole placement technique and a H(∞) metrics is the method used for control of a servo mechanism with BLDC and BDC electric motors. The method includes solving a polynomial equation on the basis of the chose…
  pubmed Sarjaš A, Svečko R, Chowdhury A 2011 Jul 置信度 0.82
• Enhancement of parkinsonian rigidity with contralateral hand activation.
  Quantify the enhancement of parkinsonian rigidity associated with a contralateral activation maneuver.
  pubmed Powell D, Hanson N, Threlkeld AJ, Fang X 等 2011 Aug 置信度 0.82
• Fast reciprocating probe system on the EAST superconducting tokamak.
  A new fast reciprocating probe system (FRPS) has been built and installed on the outer midplane of the EAST tokamak to investigate the profiles of the boundary plasma parameters such as electron density and temperature. The system consists of a two-stage motio…
  pubmed Zhang W, Chang JF, Wan BN, Xu GS 等 2010 Nov 置信度 0.82
• Human control of an inverted pendulum: is continuous control necessary? Is intermittent control effective? Is intermittent control physiological?
  Human motor control is often explained in terms of engineering 'servo' theory. Recently, continuous, optimal control using internal models has emerged as a leading paradigm for voluntary movement. However, these engineering paradigms are designed for high band…
  pubmed Loram ID, Gollee H, Lakie M, Gawthrop PJ 2011 Jan 15 置信度 0.82
• Are fish less responsive to a flow stimulus when swimming?
  Fish use the lateral line system to sense the water flow created by a predator's strike. Despite its potential importance to the survival of a diversity of species, it is unclear whether this ability becomes compromised when a fish swims. Therefore, the presen…
  pubmed Feitl KE, Ngo V, McHenry MJ 2010 Sep 15 置信度 0.82
• Mechanically assisted walking with body weight support results in more independent walking than assisted overground walking in non-ambulatory patients early after stroke: a systematic review.
  Does mechanically assisted walking with body weight support result in more independent walking and is it detrimental to walking speed or capacity in non-ambulatory patients early after stroke?
  pubmed Ada L, Dean CM, Vargas J, Ennis S 2010 置信度 0.82
• Micro-optofluidic Lenses: A review.
  This review presents a systematic perspective on the development of micro-optofluidic lenses. The progress on the development of micro-optofluidic lenses are illustrated by example from recent literature. The advantage of micro-optofluidic lenses over solid le…
  pubmed Nguyen NT 2010 Jul 19 置信度 0.82
• Cogging effect minimization in PMSM position servo system using dual high-order periodic adaptive learning compensation.
  Cogging effect which can be treated as a type of position-dependent periodic disturbance, is a serious disadvantage of the permanent magnetic synchronous motor (PMSM). In this paper, based on a simulation system model of PMSM position servo control, the coggin…
  pubmed Luo Y, Chen Y, Pi Y 2010 Oct 置信度 0.82
• Somatosensory-evoked cortical activity in spastic diplegic cerebral palsy.
  Somatosensory deficits have been identified in cerebral palsy (CP), but associated cortical brain activity in CP remains poorly understood. Functional MRI was used to measure blood oxygenation level-dependent (BOLD) responses during three tactile tasks in 10 p…
  pubmed Wingert JR, Sinclair RJ, Dixit S, Damiano DL 等 2010 Nov 置信度 0.82
• Corpus callosum abnormalities in Tourette syndrome: an MRI-DTI study of monozygotic twins.
  Tourette syndrome (TS) is a chronic neurodevelopmental disorder characterised by the presence of multiple motor and phonic tics. Recent brain imaging investigations with diffusion tensor imaging (DTI) techniques found reduced measures of connectivity in the co…
  pubmed Cavanna AE, Stecco A, Rickards H, Servo S 等 2010 May 置信度 0.82
• Direct physical study of kinetochore-microtubule interactions by reconstitution and interrogation with an optical force clamp.
  We detail our use of computer-controlled optical traps to study interactions between kinetochore components and dynamic microtubules. Over the last two decades optical traps have helped uncover the working principles of conventional molecular motors, such as k…
  pubmed Franck AD, Powers AF, Gestaut DR, Davis TN 等 2010 Jun 置信度 0.82
• Development and feasibility study of a sensory-enhanced robot-aided motor training in stroke rehabilitation.
  Functional impairment of the upper limb is a major challenge faced by many stroke survivors. The present study aimed at developing a novel sensory-enhanced robot-aided motor training program and testing its feasibility in stroke rehabilitation. A specially des…
  pubmed Liu W, Mukherjee M, Tsaur Y, Kim SH 等 2009 置信度 0.82
• Famous people with Gilles de la Tourette syndrome?
  Virtually no neurologist nor psychiatrist today can be unaware of the diagnosis of Gilles de la Tourette syndrome (GTS). Although the eponymous description by Dr. Georges Gilles de la Tourette was published in 1885, familiarity with this syndrome has been achi…
  pubmed Monaco F, Servo S, Cavanna AE 2009 Dec 置信度 0.82
• An optimization study of the motion table performance.
  This paper investigates the optimal selection of processing parameters for motion table performance. The main objective of the mechanism of a one-axis servo motor table is to avoid vibration, thereby reducing experimental error. This experimental controller us…
  pubmed Hsiao YF, Kuo WM, Chang YT, Tarng YS 2010 Jan 置信度 0.82
• A tactile stimulator for studying passive shape perception.
  We describe a computer-controlled tactile stimulator for use in human psychophysical and monkey neurophysiological studies of 3D shape perception. The stimulator is constructed primarily of commercially available parts, as well as a few custom-built pieces for…
  pubmed Lane JW, Fitzgerald PJ, Yau JM, Pembeci I 等 2010 Jan 15 置信度 0.82
• Biomechanical analysis of torsion and shear forces in lumbar and lumbosacral spine segments of nonchondrodystrophic dogs.
  To determine stiffness and load-displacement curves as a biomechanical response to applied torsion and shear forces in cadaveric canine lumbar and lumbosacral specimens.
  pubmed Hediger KU, Ferguson SJ, Gedet P, Busato A 等 2009 Oct 置信度 0.82
• Stretch reflexes and joint dynamics in rheumatoid arthritis.
  In clinically diagnosed rheumatoid arthritis (RA), studies were conducted to investigate the reflex and passive tissue contribution to measured increases in joint stiffness in the resting upper limb and during constant contractions of an attached muscle. The t…
  pubmed Rajagopalan A, Burne JA 2010 Feb 置信度 0.82
• Nonparticipatory stiffness in the male perioral complex.
  The objective of this study was to extend previous published findings in the authors' laboratory using a new automated technology to quantitatively characterize nonparticipatory perioral stiffness in healthy male adults.
  pubmed Chu SY, Barlow SM, Lee J 2009 Oct 置信度 0.82
• EMG responses to unexpected perturbations are delayed in slower movements.
  It has previously been found that in fast point-to-point arm movements, proprioceptive feedback is centrally suppressed at the beginning of movement and is facilitated at a time that is correlated with temporal parameters of the planned movement. Here, we show…
  pubmed David FJ, Poon C, Niu CM, Corcos DM 等 2009 Oct 置信度 0.82
• Stem cells in amyotrophic lateral sclerosis: state of the art.
  Amyotrophic lateral sclerosis (ALS) is a devastating incurable neurodegenerative disease that targets motor neurons, manifesting as a linear decline in muscular function and leading to death within 2 - 5 years of diagnosis. The vast majority of ALS cases are s…
  pubmed Mazzini L, Vercelli A, Ferrero I, Mareschi K 等 2009 Oct 置信度 0.82
• The design of a robotic multichannel platform for photodynamic therapy.
  A compact robotic platform is designed for simultaneous multichannel motion control for light delivery and dosimetry during interstitial photodynamic therapy (PDT). Movements of light sources and isotropic detectors are controlled by individual motors along di…
  pubmed Hu Y, Finlay JC, Zhu TC 2009 Jul 13 置信度 0.82
• Development of a radial-torsional vibration hybrid type ultrasonic motor with a hollow and short cylindrical structure.
  A longitudinal-torsional hybrid-type ultrasonic motor has larger torque and lower revolution speed compared with other kinds of ultrasonic motors. It drives devices directly and precisely, so it is adaptable to many fields, especially aeronautics and astronaut…
  pubmed Wang J, Guo J 2009 May 置信度 0.82
• The balance recovery mechanisms against unexpected forward perturbation.
  Falls are one of the main concerns of the elderly. Proper postural adjustments to maintain balance involve the activation of appropriate muscles to produce force and to relocate the center of body mass (CoM). In this study, biomechanical aspects of dynamic pos…
  pubmed Hwang S, Tae K, Sohn R, Kim J 等 2009 Aug 置信度 0.82
• Simulation of force loaded knee movement in a newly developed in vitro knee simulator.
  Simulating knee movement under physiological muscle loading is a prerequisite in order to improve surgical treatment and rehabilitation techniques. An apparatus is presented which can simulate five knee muscles to control a definite amount of body weight using…
  pubmed Müller O, Lo J, Wünschel M, Obloh C 等 2009 Jun 置信度 0.82
• Assessment of dose rate scaling factors used in NCTPlan treatment planning code for the BNCT beam of THOR.
  Tsing Hua open-pool reactor (THOR) at Tsing Hua University in Taiwan has been used to investigate the feasibility and to enhance the technology of boron neutron capture therapy (BNCT) for years. A rebuilt epithermal beam port for BNCT at THOR was finished in t…
  pubmed Hsu FY, Liu MT, Tung CJ, Hsueh Liu YW 等 2009 Jul 置信度 0.82
• The behavioral spectrum of Gilles de la Tourette syndrome.
  Gilles de la Tourette syndrome is a neurodevelopmental disorder consisting of multiple motor and one or more vocal/phonic tics. Tourette's syndrome is increasingly recognized as a common neuropsychiatric disorder usually diagnosed in early childhood, and comor…
  pubmed Cavanna AE, Servo S, Monaco F, Robertson MM 2009 Winter 置信度 0.82
• Research and development of a portable device to quantify muscle tone in patients with Parkinsons disease.
  Parkinson's disease (PD) is a progressive, degenerative condition that is characterised by tremor, bradykinesia, cogwheel rigidity and postural instability. Currently, only subjective tests are employed and we aim to develop a portable device to quantify muscl…
  pubmed Wright D, Nakamura K, Maeda T, Kutsuzawa K 等 2008 置信度 0.82
• Focused ultrasound thermal therapy system with ultrasound image guidance and temperature measurement feedback.
  In this study, we developed a focused ultrasound (FUS) thermal therapy system with ultrasound image guidance and thermocouple temperature measurement feedback. Hydraulic position devices and computer-controlled servo motors were used to move the FUS transducer…
  pubmed Lin KH, Young SY, Hsu MC, Chan H 等 2008 置信度 0.82
• Dynamic compressive response of the human pelvis axial loading of the sacroiliac joint.
  The purpose of this study was to quantify the biomechanical response of the intact human pelvis subjected to dynamic axial compressive loading. Axial compression tests were performed on a total of six fresh frozen human cadaver pelves, five male and one female…
  pubmed Kemper AR, McNally C, Duma SM 2008 置信度 0.82
• Somatosensory temporal discrimination learning generalizes to motor interval production.
  The present study investigated whether a common timing mechanism underlies the ability to analyze incoming sensory information and control outgoing motor commands. Participants were presented with two pairs of air puffs on the ventral surface of the right fore…
  pubmed Planetta PJ, Servos P 2008 Oct 3 置信度 0.82
• Step training reinforces specific spinal locomotor circuitry in adult spinal rats.
  Locomotor training improves function after a spinal cord injury both in experimental and clinical settings. The activity-dependent mechanisms underlying such improvement, however, are sparsely understood. Adult rats received a complete spinal cord transection …
  pubmed Ichiyama RM, Courtine G, Gerasimenko YP, Yang GJ 等 2008 Jul 16 置信度 0.82
• Transcranial magnetic stimulation reduces masseter motoneuron pool excitability throughout the cortical silent period.
  To evaluate the time-course of changes in masseter motoneuron pool excitability following transcranial magnetic stimulation of motor cortex, and relate this to the duration of the masseter cortical silent period (CSP).
  pubmed Sowman PF, Flavel SC, McShane CL, Miles TS 等 2008 May 置信度 0.82
• Hybrid supervisory control using recurrent fuzzy neural network for tracking periodic inputs.
  A hybrid supervisory control system using a recurrent fuzzy neural network (RFNN) is proposed to control the mover of a permanent magnet linear synchronous motor (PMLSM) servo drive for the tracking of periodic reference inputs. First, the field-oriented mecha…
  pubmed Lin FJ, Wai RJ, Hong CM 2001 置信度 0.82
• Robust control for nonlinear motor-mechanism coupling system using wavelet neural network.
  A robust controlled toggle mechanism, which is driven by a permanent magnet (PM) synchronous servo motor is studied in this paper. First, based on the principle of computed torque control, a position controller is developed for the motor-mechanism coupling sys…
  pubmed Wai RJ 2003 置信度 0.82
• Symmetric sensorimotor somatotopy.
  Functional imaging has recently been used to investigate detailed somatosensory organization in human cortex. Such studies frequently assume that human cortical areas are only identifiable insofar as they resemble those measured invasively in monkeys. This is …
  pubmed Overduin SA, Servos P 2008 Jan 30 置信度 0.82
• Diaphragm muscle strip preparation for evaluation of gene therapies in mdx mice.
  1. Duchenne muscular dystrophy (DMD), a severe muscle wasting disease of young boys with an incidence of one in every 3000, results from a mutation in the gene that encodes dystrophin. The absence of dystrophin expression in skeletal muscles and heart results …
  pubmed Faulkner JA, Ng R, Davis CS, Li S 等 2008 Jul 置信度 0.82
• Inconvenient truths about neural processing in primary motor cortex.
  Primary motor cortex (MI) plays an important role in voluntary motor behaviour, yet considerable debate remains on how neural processing within this brain region contributes to motor function. This article provides a brief review of the dominant conceptual fra…
  pubmed Scott SH 2008 Mar 1 置信度 0.82
• Tendon reflexes elicited using a computer controlled linear motor tendon hammer.
  We present a novel instrumentation system for studying tendon and spinal reflexes using a commercial linear servo-motor as a precisely controlled tendon hammer. The system uses a LabVIEW-based program to both control electrical or mechanical stimuli and record…
  pubmed Archambeault M, de Bruin H, McComas A, Fu W 2006 置信度 0.82
• Automatic measurement of nonparticipatory stiffness in the perioral complex.
  To detail a novel automated technology developed in the authors' laboratory to quantitatively and noninvasively measure perioral passive stiffness in order to consider the feasibility of future applications in patients with facial movement disorders.
  pubmed Seibel LM, Barlow SM 2007 Oct 置信度 0.82
• Experimental dynamic characterizations and modelling of disk vibrations for HDDs.
  Currently, the rotational speed of spindle motors in HDDs (Hard-Disk Drives) are increasing to improve high data throughput and decrease rotational latency for ultra-high data transfer rates. However, the disk platters are excited to vibrate at their natural f…
  pubmed Pang CK, Ong EH, Guo G, Qian H 2008 Jan 置信度 0.82
• Modulation of the trigeminofacial pathway during syllabic speech.
  The human orofacial system is richly endowed with low-threshold, slowly adapting mechanoreceptors that respond to self-generated movements and external loads. The functional linkage between these afferents and the recruitment of motor units in the lower face d…
  pubmed Estep M, Barlow SM 2007 Sep 26 置信度 0.82
• Evidence for the flexible sensorimotor strategies predicted by optimal feedback control.
  Everyday movements pursue diverse and often conflicting mixtures of task goals, requiring sensorimotor strategies customized for the task at hand. Such customization is mostly ignored by traditional theories emphasizing movement geometry and servo control. In …
  pubmed Liu D, Todorov E 2007 Aug 29 置信度 0.82
• A precision translation stage for reproducing measured target volume motions.
  The development of 4D imaging, treatment planning and treatment delivery methods for radiation therapy require the use of a high-precision translation stage for testing and validation. These technologies may require spatial resolutions of 1 mm, and temporal re…
  pubmed Litzenberg DW, Hadley SW, Lam KL, Balter JM 2007 Aug 8 置信度 0.82
• A high-frame rate high-frequency ultrasonic system for cardiac imaging in mice.
  We report the development of a high-frequency (30-50 MHz), real-time ultrasonic imaging system for cardiac imaging in mice. This system is capable of producing images at 130 frames per second (fps) with a spatial resolution of less than 50 microm. A novel mech…
  pubmed Sun L, Richard WD, Cannata JM, Feng CC 等 2007 Aug 置信度 0.82
• Controlling the freezing process: a robotic device for rapidly freezing biological tissues with millisecond time resolution.
  A robotic cryogenic device was developed which allows freezing of thick biological tissues with millisecond time resolution. The device consists of two horizontally oriented hammers (pre-cooled with liquid N(2)) driven by two linear servo-motors. The tissue sa…
  pubmed Tikunov BA, Rome LC 2007 Oct 置信度 0.82
• New shape memory alloy actuator: design and application in the prosthetic hand.
  This paper describes a new SMA actuator design and its application in the prosthetic hand replacing conventional servo motors which are bulky and noisy in nature. Two one-way memory SMA wires are used in the development of the actuator. The proposed actuator c…
  pubmed Siong Loh C, Yokoi H, Arai T 2005 置信度 0.82
• Locomotor rehabilitation in a complex virtual environment.
  Virtual reality (VR) technology offers a new and safe way to increase practice time and provide the varied environments and constraints needed to optimize locomotor training. Our specific objectives are (1) to create a virtual environment (VE) coupled with a s…
  pubmed Fung J, Malouin F, McFadyen BJ, Comeau F 等 2004 置信度 0.82
• Contact force- and amplitude-controllable vibrating probe for somatosensory mapping of plantar afferences with fMRI.
  To study cerebral responses evoked from mechanoreceptors in the human foot sole using a computer-controlled vibrotactile stimulation system.
  pubmed Gallasch E, Golaszewski SM, Fend M, Siedentopf CM 等 2006 Nov 置信度 0.82
• The frequency of human, manual adjustments in balancing an inverted pendulum is constrained by intrinsic physiological factors.
  While standing naturally and when manually or pedally balancing an equivalent inverted pendulum, the load sways slowly (characteristic unidirectional duration approximately 1 s) and the controller, calf muscles or hand, makes more frequent adjustments (charact…
  pubmed Loram ID, Gawthrop PJ, Lakie M 2006 Nov 15 置信度 0.82
• Loop shaping design for tracking performance in machine axes.
  A modern interpretation of classical loop shaping control design methods is presented in the context of tracking control for linear motor stages. Target applications include noncontacting machines such as laser cutters and markers, water jet cutters, and adhes…
  pubmed Schinstock DE, Wei Z, Yang T 2006 Jan 置信度 0.82
• Documentation and teaching of surgery with an eye movement driven head-mounted camera: see what the surgeon sees and does.
  A first proof of concept was developed for a head-mounted video camera system that is continuously aligned with the user's orientation of gaze. In doing so, it records images from the user's perspective that can document manual tasks during, e.g., surgery. Eye…
  pubmed Schneider E, Bartl K, Dera T, Böning G 等 2006 置信度 0.82
• Motor neurone excitability in back muscles assessed using mechanically evoked reflexes in spinal cord injured patients.
  The clinical and functional assessment of back muscles in human spinal cord injury (SCI) has received little attention. The aim of this study was to develop a method to assess the level of a thoracic spinal cord lesion based on the reflex activation of back mu…
  pubmed Kuppuswamy A, Theodorou S, Catley M, Strutton PH 等 2005 Sep 置信度 0.82
• Post-activation depression in various group I spinal pathways in humans.
  This investigation was designed to study the effects of post-activation depression in different spinal pathways fed by group I afferents available to investigation in human subjects. It was precipitated by a recent investigation in the cat showing that-contrar…
  pubmed Lamy JC, Wargon I, Baret M, Ben Smail D 等 2005 Oct 置信度 0.82
• Electromyographic investigation on handling forces of mechanically counterbalanced and sensor-servomotor-supported surgical microscopes.
  Recent developments in sensor-servomotor-driven microscopes again initiated a discussion on the value of such technology for practical use in neurosurgery. The need for less force in moving a motor-supported microscope is advantageous. However, questions remai…
  pubmed Hoell T, Nagel M, Huschak G, Beier A 等 2005 May 置信度 0.82
• The effects of viscous loading of the human forearm flexors on the stability of coordination.
  This experiment investigated whether the stability of rhythmic unimanual movements is primarily a function of perceptual/spatial orientation or neuro-mechanical in nature. Eight participants performed rhythmic flexion and extension movements of the left wrist …
  pubmed Riek S 2004 Oct 置信度 0.82
• Centrifugal and electric field forces dual-pumping CD-like microfluidic platform for biomedical separation.
  In this article, we propose a versatile CD-like multi-channel electrophoresis-based biomedical separation system that is driven by the interactive forces between the centrifugal force and the electric field force. The centrifugal force control of this system i…
  pubmed Wang GJ, Hsu WH, Chang YZ, Yang H 2004 Mar 置信度 0.82
• An electrostrictive drive for fine pitch control in double-crystal monochromators.
  Precise control of the pitch angle of the crystals in a double-crystal monochromator is essential to preserve their accurate alignment while the instrument is scanned. Computer-controlled piezoceramic electrostrictive actuators have recently been installed to …
  pubmed Shard AG, Dhanak VR, Smith AD 1998 May 1 置信度 0.82
• A novel robotic system for joint biomechanical tests: application to the human knee joint.
  The objectives of the work reported in this article were to develop a novel 6-degree-of-freedom (DOC) robotic system for knee joint biomechanics, to complete a hybrid force-position control scheme, to evaluate the system performance, and to demonstrate a combi…
  pubmed Fujie H, Sekito T, Orita A 2004 Feb 置信度 0.82
• State-dependent and odor-mediated anemotactic responses of a micro-arthropod on a novel type of locomotion compensator.
  A novel type of locomotion compensator was designed and tested for its use in orientation behavior experiments with a predatory mite. In this apparatus, displacements of the test animal in the two-dimensional plane are recorded using video equipment and a serv…
  pubmed van Tilborg M, van der Pers JN, Roessingh P, Sabelis MW 2003 Aug 置信度 0.82
• Perceiving biological motion: dissociating visible speech from walking.
  Neuropsychological research suggests that the neural system underlying visible speech on the basis of kinematics is distinct from the system underlying visible speech of static images of the face and identifying whole-body actions from kinematics alone. Functi…
  pubmed Santi A, Servos P, Vatikiotis-Bateson E, Kuratate T 等 2003 Aug 15 置信度 0.82
• Thin-disc piezoceramic ultrasonic motor. Part II: system construction and control.
  Design and performance evaluation of an ultrasonic motor was discussed in [Wen et al., Thin-disc piezoelectric ultrasonic motor. Part I: design and performance evaluation, Ultrasonics]. Higher precision position control of piezoceramic ultrasonic motor depends…
  pubmed Yen CY, Wen FL, Ouyang M 2003 Aug 置信度 0.82
• Thin-disk piezoceramic ultrasonic motor. Part I: design and performance evaluation.
  The purpose of this study is to gain the knowledge and experience in the design of thin-disk piezoceramic-driving ultrasonic actuator dedicated. In this paper, the design and construction of an innovative ultrasonic actuator is developed as a stator, which is …
  pubmed Wen FL, Yen CY, Ouyang M 2003 Aug 置信度 0.82
• A multiportal compensator system for IMRT delivery.
  We have developed a multiportal compensator system for IMRT delivery, comprising a rotational compensator mount for a linac head, cylindrical compensator enclosures positioned in the mount, a vacuum-formed thermoplastic sheet with heavy alloy granules inside t…
  pubmed Yoda K, Aoki Y 2003 May 置信度 0.82
• [Influence of the posterior tibial tendon on the medial arch of the foot: an in vitro kinetic and kinematic study].
  The respective contributions of the active and passive structures of the foot to the stability of the medical arch were investigated using an in vitro kinetic and kinematic model. The effect of the tibialis posterior tendon on foot and ankle movements, and pla…
  pubmed Emmerich J, Wülker N, Hurschler C 2003 Apr 置信度 0.82
• Is the long-latency stretch reflex in human masseter transcortical?
  A long-latency stretch reflex (LLSR) has been described in the human masseter muscle, but its pathway remains uncertain. To investigate this, the excitability of corticomotoneuronal (CM) cells projecting to masseter motoneurons during the LLSR was assessed wit…
  pubmed Pearce SL, Miles TS, Thompson PD, Nordstrom MA 2003 Jun 置信度 0.82
• Visually guided movements: learning with modular neural maps in robotics.
  Robotics involves complex processing and requires modular controllers. For the connectionist approach, the adaptation of each module within the global system remains a major problem to be solved. This paper proposes the idea that biological learning can take a…
  pubmed Buessler JL, Urban JP 1998 Oct 置信度 0.82
• Diabetic neuropathy and surface sway-referencing disrupt somatosensory information for postural stability in stance.
  In order to determine the type of somatosensory information for postural control that is most affected by neuropathy, we compared the relative effects of three methods of sway-referencing the surface in a group of subjects with profound loss of somatosensory f…
  pubmed Horak FB, Dickstein R, Peterka RJ 2002 置信度 0.82
• [An integrated medical diagnostic X-ray unit controlled by microcomputer].
  This article introduces an integrated medical diagnostic X-ray unit controlled by microcomputer. It is a practical and low-priced spot-film radiography device, and it is applicable to conventional local control unit. If you select a set of X-rayimage intensifi…
  pubmed Huang Y, Lu J 2001 Mar 置信度 0.82
• The neural substrates of biological motion perception: an fMRI study.
  We used fMRI to identify the brain areas related to the perception of biological motion (4 T EPI; whole brain). In experiment 1, 10 subjects viewed biological motion (a human figure jumping up and down, composed of 21 dots), alternating with a control stimulus…
  pubmed Servos P, Osu R, Santi A, Kawato M 2002 Jul 置信度 0.82
• Population coding in cortical area MST.
  Disparity steps applied to large patterns elicit vergence eye movements at ultrashort latencies. Disparity tuning curves, describing the dependence of the amplitude of the initial vergence responses on the amplitude of the disparity steps, resemble the derivat…
  pubmed Takemura A, Kawano K, Quaia C, Miles FA 2002 Apr 置信度 0.82
• Dynamic posturography using a new movable multidirectional platform driven by gravity.
  Human upright balance control can be quantified using movable platforms driven by servo-controlled torque motors (dynamic posturography). We introduce a new movable platform driven by the force of gravity acting upon the platform and the subject standing on it…
  pubmed Commissaris DA, Nieuwenhuijzen PH, Overeem S, de Vos A 等 2002 Jan 15 置信度 0.82
• A hybrid (numerical-physical) model of the left ventricle.
  Hydraulic models of the circulation are used to test mechanical devices and for training and research purposes; when compared to numerical models, however, they are not flexible enough and rather expensive. The solution proposed here is to merge the characteri…
  pubmed Ferrari G, Kozarski M, De Lazzari C, Clemente F 等 2001 Jul 置信度 0.82
• Phase transitions and postural deviations during bimanual kinesthetic tracking.
  Upper limb coordination was studied by examining pattern stability of between-hand rhythmical coordination. In the first of two experiments, relative phase of rhythmical wrist flexion-extension was examined within a kinesthetic tracking paradigm. Eight right-h…
  pubmed Stinear JW, Byblow WD 2001 Apr 置信度 0.82
• Insights for robotic design from studies of the control of abdominal position in crayfish.
  Studies of the control of position and movement of the abdomen of crayfish illustrate a number of features of invertebrate sensory-motor systems that have implications for their use to inform robotic design. We use the abdominal slow extensor motor system to i…
  pubmed Macmillan DL, Patullo BW 2001 Apr 置信度 0.82
• A multi-purpose rehabilitation frame: a novel apparatus for balance training during standing of neurologically impaired individuals.
  We present a novel mechanical apparatus, named Multi-purpose Rehabilitation Frame (MRF), and methods for balance training during standing of neurologically impaired individuals. The device has two degrees of freedom (DOF), which allow for constrained movement …
  pubmed Matjacić Z, Johannesen IL, Sinkjaer T 2000 Nov-Dec 置信度 0.82
• A multi-purpose rehabilitation frame: an apparatus for experimental investigations of human balance and postural control.
  Moving and rotating platforms are often used in experimental investigations of human balance and postural control. These devices are not well suited for testing elderly and neurologically impaired individuals, because of inherent risk of injury to the experime…
  pubmed Matjacić Z 2000 Nov-Dec 置信度 0.82
• Variability in the control of head movements in seated humans: a link with whiplash injuries?
  The aim of this study was to determine how context and on-line sensory information are combined to control posture in seated subjects submitted to high-jerk, passive linear accelerations. Subjects were seated with eyes closed on a servo-controlled linear sled.…
  pubmed Vibert N, MacDougall HG, de Waele C, Gilchrist DP 等 2001 May 1 置信度 0.82
• Prospects for treating acquired pendular nystagmus with servo-controlled optics.
  To determine whether a device featuring electronically controlled motor-driven prisms can reduce oscillopsia and improve acuity in patients with acquired pendular nystagmus (APN).
  pubmed Stahl JS, Lehmkuhle M, Wu K, Burke B 等 2000 Apr 置信度 0.82
• Control system for an implantable rotary blood pump.
  Rotary blood pumps can be used for long-term left ventricular assist devices. These pumps have several advantages over the conventional pulsatile pumps including smaller size, higher efficiency, and simple design and construction. However, one of the difficult…
  pubmed Nakata KI, Yoshikawa M, Takano T, Sankai Y 等 2000 Aug 置信度 0.82
• Torsional vestibulo-ocular reflex during whole-body oscillation in the upright and the supine position. I. Responses in healthy human subjects.
  In rhesus monkeys, the dynamic properties of the torsional vestibulo-ocular reflex (VOR) are modified by otolith input: compared with torsional oscillations about an earth-vertical axis (canal-only stimulation), the phase lead observed at frequencies below 0.1…
  pubmed Schmid-Priscoveanu A, Straumann D, Kori AA 2000 Sep 置信度 0.82
• In vitro system to study realistic pulsatile flow and stretch signaling in cultured vascular cells.
  We developed a novel real-time servo-controlled perfusion system that exposes endothelial cells grown in nondistensible or distensible tubes to realistic pulse pressures and phasic shears at physiological mean pressures. A rate-controlled flow pump and linear …
  pubmed Peng X, Recchia FA, Byrne BJ, Wittstein IS 等 2000 Sep 置信度 0.82
• Functioning of ICU ventilators under hyperbaric conditions--comparison of volume- and pressure-controlled modes.
  To evaluate the function of four currently available, not specifically modified time-cycled ICU ventilators (EVITA 4, Oxylog 2000 HBO and Microvent from Drägerwerk, Germany and Servo 900C, Siemens-Elema, Sweden) under hyperbaric conditions using volume-co…
  pubmed Stahl W, Radermacher P, Calzia E 2000 Apr 置信度 0.82
• Effects on peroneal motoneurons of cutaneous afferents activated by mechanical or electrical stimulations.
  The postsynaptic potentials elicited in peroneal motoneurons by either mechanical stimulation of cutaneous areas innervated by the superficial peroneal nerve (SP) or repetitive electrical stimulation of SP were compared in anesthetized cats. After denervation …
  pubmed Perrier JF, Lamotte D'Incamps B, Kouchtir-Devanne N, Jami L 等 2000 Jun 置信度 0.82