Design of a diagnostic technique used in an intelligent support system for artificial heart control is presented. Parameters which may cause abnormal variables of the recipient of artificial hearts are searched with t...
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ISBN:
(纸本)0780307852
Design of a diagnostic technique used in an intelligent support system for artificial heart control is presented. Parameters which may cause abnormal variables of the recipient of artificial hearts are searched with the use of a large dynamic model Human. The advantage of this technique is that candidates of abnormal parameters can be pointed out avoiding real-time parameter estimation whose results would be unreliable for the large scale model.
With a proper combination of compliant and position- controlled joints, a link system can change its posture with keeping contact between link system and environment. This motion is so-called Self-Posture Changing Mot...
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Design of a diagnostic technique used in an intelligent support system for artificial heart control is presented. Parameters which may cause abnormal variables of the recipient of artificial hearts are searched with t...
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Design of a diagnostic technique used in an intelligent support system for artificial heart control is presented. Parameters which may cause abnormal variables of the recipient of artificial hearts are searched with the use of a large dynamic model Human. The advantage of this technique is that candidates of abnormal parameters can be pointed out avoiding real-time parameter estimation whose results would be unreliable for the large scale model.
A type of miniature linear actuators called a cybernetic actuator for biomedical applications is described. This actuator has four driving states: free, increasing, decreasing, and lock. The free and lock states can r...
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A type of miniature linear actuators called a cybernetic actuator for biomedical applications is described. This actuator has four driving states: free, increasing, decreasing, and lock. The free and lock states can release excessive applied load from outside to provide safety characteristics for both human and micromechanisms. Miniaturized linear cybernetic actuators combining a piezoelectric impact drive with electromagnetic clamping were designed and developed. Feasibility and basic performance of the actuators were confirmed by theory and experiments. Improved performance in terms of maximum speed, energy efficiency, and silent drive as a miniature linear actuator were verified successfully by using a controlled friction impact drive.< >
Two 2-layer networks are first trained independently by delta rule and then cascaded. The middle layer can be viewed as a hidden layer and is trained to attain preassigned saturated outputs in response to the training...
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Two 2-layer networks are first trained independently by delta rule and then cascaded. The middle layer can be viewed as a hidden layer and is trained to attain preassigned saturated outputs in response to the training set. Simulation results reveal that generalization ability of this cascaded network is far better than that of conventional back-propagation networks. Suggestions about the hidden coding in the cascaded network are presented. This network also learns considerably faster than BP networks. In large scale integrated neural network systems this network would enhance the overall performance.< >
A cross talk reduction method of an associative memory based on the outer product algorithm is presented. Because of crosstalk among superposed memories, memory capacity is limited and is much too low. To increase mem...
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A cross talk reduction method of an associative memory based on the outer product algorithm is presented. Because of crosstalk among superposed memories, memory capacity is limited and is much too low. To increase memory capacity, extensions to a higher-order correlation memory have been proposed. An associative memory architecture for realizing crosstalk reduction by using cross products as small as possible is presented. Higher-order cross product terms are obtained by using the Krawtchouk polynomial.< >
The authors discuss active tactile sensing for detecting a contact point between a multifingered robot hand and an unknown object. They define the concept of actively sensible meaning that an active sensing motion can...
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The authors discuss active tactile sensing for detecting a contact point between a multifingered robot hand and an unknown object. They define the concept of actively sensible meaning that an active sensing motion can be planned for a sensing event. Assuming more than two sensing events, conditional-minimum-external-sensor-realization is defined, where it is shown that it is possible to reduce the number of external sensors with a well-planned sensing algorithm. Based on these definitions, an active sensing algorithm for detecting the contact point with minimum-external-sensor-realization is proposed. This approach remedies several disadvantages found in conventional approaches. The approach was tested through experiments using a single-finger model with a fingertip tactile sensor.< >
The authors discuss the self-posture changeability (SPC) for a general 3-D link system. The series of motions brought about by SPC is called self-posture changing motions (SPCM). SPC and SPCM are considered assuming t...
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The authors discuss the self-posture changeability (SPC) for a general 3-D link system. The series of motions brought about by SPC is called self-posture changing motions (SPCM). SPC and SPCM are considered assuming that the link system moves slowly enough to suppress any dynamic effects. It is shown that, according to a particular combination of link posture, joint assignment, and object shape, there exist a deadlock state, where no further angular displacement can be imparted to the position-controlled joint. It is also shown that there are two different types of deadlock states which never result in any SPCM. The authors introduce (w, omega )-posture changeability, the characteristic with which a link can change posture for every possible force within a cone of a prime axis w and a solid angle, omega . The necessary and sufficient conditions leading to (w, omega )-posture changeability are shown, for a given contact point and frictional conditions. a sufficient condition is included required to realize SPCM under the assumption that the contact point moves continuously over the object and the link-object system never results in a deadlock state.< >
A multi-valued-logic fuzzy-inference system module based on the CRI method was constructed using blocks. Simulation results of basic fuzzy blocks and the CRI system module indicate that the multi-valued-logic fuzzy-in...
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A multi-valued-logic fuzzy-inference system module based on the CRI method was constructed using blocks. Simulation results of basic fuzzy blocks and the CRI system module indicate that the multi-valued-logic fuzzy-inference system has a much faster speed than a binary one, and the configuration of circuits are much simpler.
A novel approach to obstacle detection using optical flow without recovering range information has been developed. This method can be used for ground vehicles to navigate through man-made roadways or natural outdoor t...
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