Na/H Exchange and Arrhythmia

Hashimoto, Keitaro; Nagasawa, Etsunobu; Zhu, Bing-Mei

doi:10.1007/978-1-4615-0355-2_27

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…At the University of Tsukuba, Hashimoto and Iwata have undertaken research into using immersive projection displays and haptic feedback [62]. Their system comprises of a prototype Ensphered Vision display and a HapticMaster.…”

Section: Human-scale Haptic Devicesmentioning

confidence: 99%

Recent Developments and Applications of Haptic Devices

Laycock¹,

Day²

2003

Computer Graphics Forum

103

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Over recent years a variety of haptic feedback devices have been developed and are being used in a number of important applications. They range from joysticks used in the entertainment industry to specialised devices used in medical applications. This paper will describe the recent developments of these devices and show how they have been applied. It also examines how haptic feedback has been combined with visual display devices, such as virtual reality walls and workbenches, in order to improve the immersive experience. ACM CSS: H.5.2 Information Interfaces and Presentation—Haptic I/O; I.3.8 Computer Graphics—Applications; I.6 Simulation and Modelling—Applications

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Section: Human-scale Haptic Devicesmentioning

confidence: 99%

Recent Developments and Applications of Haptic Devices

Laycock¹,

Day²

2003

Computer Graphics Forum

103

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“…Moreover, they can be used to reconstruct unknown inputs, which could be a combination of system disturbances [21]. Many researchers were interested in designing sliding mode observers for uncertain dynamical systems; such as Utkin et al [22], Walcot et al [23], Zak et al [24], Edwards et al [19], and Slotine et al [25]. This paper focuses on designing an optimal LQR controller by using sliding mode observer to attenuate the vibration of a smart cantilever beam.…”

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confidence: 99%

Active Vibration Suppression of Smart Cantilever Beam with Sliding Mode Observer Using Two Piezoelectric Patches

Al-Samarraie¹,

Hamzah²,

Abdulsahib³

2017

alkej

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This paper presents a vibration suppression control design of cantilever beam using two piezoelectric ‎patches. One patch was used as ‎an actuator element, while the other was used as a sensor. The controller design was designed via the balance realization reduction method to elect the reduced order model that is most controllable and observable. ‎the sliding mode observer was designed to estimate six states from the reduced order model but three states are only used in the control law. Estimating a number of states larger than that used is in order to increase the estimation accuracy. Moreover, the state ‎estimation error is proved bounded. An ‎optimal LQR controller is designed then using the ‎estimated states with the sliding mode observer, to ‎suppress the vibration of a smart cantilever ‎beam via the piezoelectric elements. The control spillover problem was avoided, by deriving an avoidance ‎condition, to ensure the ‎asymptotic stability for the proposed vibration ‎control design. ‎The numerical simulations were achieved to ‎test the vibration attenuation ability of the ‎proposed optimal control. For 15 mm initial tip ‎displacement, the piezoelectric actuator found ‎able to reduce the tip displacement to about 0.1 ‎mm after 4s, while it was 1.5 mm in the ‎open loop case. The current experimental results showed a good performance of the proposed LQR control law and the sliding mode observer, as well a good agreement with theoretical results.

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Arrhythmia Models for Drug Research: Classification of Antiarrhythmic Drugs

Hashimoto

2007

J Pharmacol Sci

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Abstract. The aim of this study was to classify antiarrhythmic drugs based on their effectiveness on 6 in vivo arrhythmia models, mainly using dogs. The models were produced by two-stage coronary ligation, digitalis, halothane-adrenaline, programmed electrical stimulation in old myocardial infarction dogs, coronary artery occlusion / reperfusion, or chronic atrioventricular block. Na + -channel-blocking drugs suppressed two-stage coronary ligation and digitalis arrhythmias. Ca 2+ -channel blockers and β-blockers suppressed halothane-adrenaline arrhythmia. Positive inotropic drugs aggravated halothane-adrenaline arrhythmia, but did not aggravate digitalis arrhythmia. K + -channel blockers suppressed programmed electrical stimulation induced arrhythmia, but induced torsades de pointes type arrhythmia in chronic atrioventricular block dogs and aggravated halothane-adrenaline arrhythmia. Na

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Na/H Exchange and Arrhythmia

Cited by 3 publications

References 19 publications

Recent Developments and Applications of Haptic Devices

Recent Developments and Applications of Haptic Devices

Active Vibration Suppression of Smart Cantilever Beam with Sliding Mode Observer Using Two Piezoelectric Patches

Arrhythmia Models for Drug Research: Classification of Antiarrhythmic Drugs

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