http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : Toshio Hira (검색결과 6 건)
- 무료
- 기관 내 무료
- 유료
-
A Consideration of “Expression in Mechanics Sense”
Toshio Hira 제어로봇시스템학회 2018 제어로봇시스템학회 국제학술대회 논문집 Vol.2018 No.10
It is emphasized in general that the design process at the conceptual stage is highly dependent on the designer’s individual skills and sense of aesthetics. As a result, a methodology for that process tends to be described as an intuitive manner. There are also, however, objective aspects, such as rationality in terms of mechanics, that affect the subjective impression from an object. We consider that the intuitive design methodology can be reinterpreted as a systematic one if the relationship between the sensory- and the objective- aspect was revealed. In this article, we hypothesized that the human designer intuitively sees the distribution of load level, such as mechanical stress, on the object without analysis. Moreover, we proposed a concept of “expression in mechanics sense” perceived by the human designer. The term of expression is a metaphor of human facial one. This virtual expression is a bridge connecting the sensory- and objective-aspect in the design process. In the case of pottery cup, we showed some methodologies using the deep learning-based captioning in order to characterize the shape features and to associate with their mechanical rationalities. As a result, it was shown that the category score output by the caption generator might be available as a measure of the rationality of the shape in mechanics sense.
-
A Study of Calligraphic Skill by Virtual Brush-Writing with Haptic Device
Toshio HIRA,Kenichi IIDA 제어로봇시스템학회 2010 제어로봇시스템학회 국제학술대회 논문집 Vol.2010 No.10
Handwritten characters involve much variant appearance by each individual. Especially, brush-writing, such in Japanese or Chinese calligraphy, is very skillful action, since the writer is required to activate the calligraphic technique, such as the pullout, the stop, and flick, with softness of the brush. In this article, we implemented a virtual brush-writing system with the pen-style haptic device which enables human-computer interaction through the touch with force-feedback. The system provides the reaction force against the virtual paper, and records the brush stroke by means of brush-tip position and pressure during the virtual writing. In order to describe the strokes by each writer, we utilized Hidden Markov model (HMM). It is regarded as that the observation sequence and hidden state, in terms of HMM, are corresponding to the stroke (pressure and velocity sequence) and the calligraphic technique. The model was trained by the stroke of six writers, and these models were experimentally verified for classification and evaluation of the similarity among the strokes of each writer. It might be considered that the likelihood through the HMM parameters suggests the measure of calligraphic skill of writer.
-
HIRA Toshio,IIDA Kenichi 제어로봇시스템학회 2022 제어로봇시스템학회 국제학술대회 논문집 Vol.2022 No.11
It is illustrated in general that the design process at the conceptual stage is highly dependent on individual skills and aesthetic sense. However, even in a subjective phase, objective aspects such as mechanical rationality are implicitly considered, and these two perspectives are inseparable. A concept of Mechanical Kansei defined as “the capability to evaluate and judge impressions in terms of unconscious, intuitive, and integrative information in mechanics,” has been proposed as a clue for interpreting the relationship between such impressions of objects and structural rationality in civil engineering and architecture fields. In this paper, we considered the Mechanical Kansei as the ability to intuitively recall shapes and forms that reflect the flow of forces from the given design domain and boundary conditions. The topology-optimized shape was taken as the structure that visualizes the flow. A Variational Autoencoder (VAE) was used to learn a set of shapes topology-optimized to the randomly located supports of a simple beam. The result shows that a two-dimensional latent variable space can derive the rational structures through the decoder without the mechanical model. This latent representation of topology-optimized shapes can be a clue to understanding the Mechanical Kansei.
-
A Baseball Game Analysis by an Extraction of Characteristic Play Sequence
Toshio Hira,Mizuki Ban,Shinichi Enoki,Shinji Uchida 제어로봇시스템학회 2016 제어로봇시스템학회 국제학술대회 논문집 Vol.2016 No.10
In baseball games, a term of momentum affecting the flow of the game is used as a mental concept. A team can feel positive momentum during a game when the first batter in an inning gets a base; the following batters get runs more easily. Regarding psychological momentum, many folk theories are widely believed among baseball people. A more quantitative approach to folk theories on baseball games is required because these are qualitatively explained without any clear basis. In this article, we statistically analyze the plays on 31 games by National Institute of Technology, Nara College (NIT-Nara) team in Japan high school baseball tournament. The verification of typical folk theories associated with some specific plays shows that these theories are not statistically significant. The playing-style is checked by means of bias on the play frequency. It is found that negative plays occurred more often than those by the opponent teams. The evaluation for the plays with n-gram frequency extracts some characteristic play sequences. These analyses revealed that NIT-Nara team is rather emotionally unstable to keep their positive momentum. Furthermore, a method for detailed investigation of the key plays driving momentum on the game is mentioned as the future problem.
-
-
Development of Omnidirectional Electric Wheelchair with Zabuton Sensor
Kenichi Iida,Hisao Yoshikawa,Taichi Mori,Toshio Hira 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
In this paper, we propose an Omnidirectional Electric Wheelchair (OEW). The proposed OEW has four omniwheels for the omnidirectional movement. Two of the omniwheels are arranged to X-axis direction and the other two are arranged to Y-axis direction. By controlling the movement of the omniwheels, the OEW can instantaneously rotate and move in all directions. Hence that, especially in the narrow spaced indoor environment, the omnidirectional nature of the OEW has an advantage over the standard wheelchair. Furthermore, the operator’ posture is used as signal to the OEW. The operator’ posture is measured by a “abuton sensor”which uses a pressure sensor to measure the pressure distribution. The effectiveness of proposed the system is reflected by the experimental results of the prototype OEW and Zabuton sensor system.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
