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Hiroyuki Maeda,Yoshihiro Yasutake,Azumi Iihoshi,Koichiro Tanaka 대한전자공학회 2018 IEIE Transactions on Smart Processing & Computing Vol.7 No.1
The training of embedded software engineers in educational institutions is required for embedded systems companies. We focus on computer architecture education for learning about the operations and architectures of processors. We use the Kyutech Easily Reconstructive Naked Educational (KERNEL) system, which was designed for computer architecture education. The KERNEL system enables users to observe the internal architecture and states of processors during execution. It helps beginners to learn the basics of a computer architecture by writing their programs into the KERNEL memory so they can observe the processor’s execution. This paper describes a field-programmable gate array (FPGA)-based educational system cooperating with mobile applications, and offers a performance evaluation of its wireless communications. The system consists of an FPGA board implemented with one"s own K16 model processor that designed for computer hardware educations in the KERNEL system and mobile applications that become a console for setting and displaying the internal state of the processor. It is possible for users to write their programs, set registers in the processor, and observe the internal state of the processor during execution by using a mobile application. Communications between the FPGA and the mobile application uses classic Bluetooth and Bluetooth Low Energy technology.
Development of Knee Joint Robot for Students Becoming Therapists
Yoshie Maeda,Tatsuya Hirano,Noritaka Sato,Yoshifumi Morita,Hiroyuki Ukai,Kouji Sanaka,Keiko Takao,Ayako Satonaka 제어로봇시스템학회 2012 제어로봇시스템학회 국제학술대회 논문집 Vol.2012 No.10
Students becoming physical therapists (PT) or occupational therapists (OT) cannot experience rehabilitation for actual patients’ troubles before clinical training. For this reason we have developed the knee joint robot imitating patients" troubles such as range of motion trouble, contracture, rigidity, spasticity and so on. Therefore students can experience rehabilitation for patients’ troubles virtually by using the robot. Moreover, from the standpoint of educational effect we have to develop a training program using the robot for the students to learn skilled manual therapy techniques for patients’ troubles. In this paper, we propose a training program consisting of the monitoring system, the force display system, the supervisory system and the evaluation system. Firstly, we develop monitoring function in which the graphs of robot’s angle, velocity and their appropriate values for training are displayed during training. Secondly, we develop simulation algorithms of clonus and hypertonia occurring in manual therapy. Lastly, we develop an evaluation method of manual therapy techniques for a patient with hypertonia.
Overview of JCGGDB including New Released GlycoProtDB
Toshihide Shikanai,Hiroyuki Kaji,Yoshinori Suzuki,Noriaki Fujita,Masako Maeda,HonglingWen,Madoka Ishizaki,Hiromichi Sawaki,Hisashi Narimatsu. 한국당과학회 2012 한국당과학회 학술대회 Vol.2012 No.1
The JST/NBDC integrated database project has kicked off last year. JCGGDB was selected as a promotion program of DB integration, aiming to integrate all the glycan-related databases in Japan and build user- friendly search systems. As part of the project, the construction of ACGG-DB (an integrated database for the ACGG: Asian Communications for Glycobiology and Glycotechnology) is also planned in cooperation with Asian countries. As of now we have consolidated data from various Japanese institutes into JCGGDB and developed a cross-search function by keyword entry and integrated search functions by glycan stcurctures. These functions enabled users to easily access various glycan-related databases with a single search. Cheminformatics technologies using chemical structural formula for glycan has been also adopted to provide a search for glycan structures, glycan synthetic products by organic chemistry and recombinant enzymes, glycogene inhibitors, glycosides, and commercial glycans. This Summer, we have released AIST GlycoProtDB, which stores the data of experimentally-proven glycosylation sites on each mouse tissue. We are continuously accumulating experimental results of glycosylation sites, while collecting more information from scientific journals, toward the release of ACGG Glycoprotein Database in autumn. For the future, we will keep developing base technologies for DB integration and linking with databases related to glycoscience as well as other study areas. Some more bioinformatics tools are also being developed to support experimental study. Our aim is to create contents which could be easily and intuitively understood by every user.
A GUI-based Application for Learning Computer Architecture using Educational Microprocessor
Ayato UEDA,Hiroyuki MAEDA,Yoshihiro YASUTAKE 대한전자공학회 2015 ITC-CSCC :International Technical Conference on Ci Vol.2015 No.6
For learning CPU architecture, we take advantage of the educational microprocessor called KERNEL. It is designed to visually present register value and signal flow. In this research, we implement KERNEL on a FPGA board and its console on a mobile computer. Our proposed system on FPGA board has the function of transmitting internal state of processor to console with Bluetooth communication. And, console is realized by a GUIbased application on a mobile computer and shows the processor state sent by FPGA board. In addition, it also has the simulator of microprocessor. This system enables educational processor to be provided at low cost and contributes flexible learning environment.
Improvement of Knee Flexion and Extension Simulation Accuracy in KneeRobo
Qichang Qi,Yoshie Maeda,Kazunori Yamazaki,Noritaka Sato,Yoshifumi Morita,Hiroyuki Ukai,Kouji Sanaka 제어로봇시스템학회 2014 제어로봇시스템학회 국제학술대회 논문집 Vol.2014 No.10
In a previous paper, we reported on the initial development of KneeRobo, which replicates knee joint troubles experienced by patients in order to enable students studying to become physical or occupational therapists to gain practical training/testing virtually. We also developed a control algorithm that enabled KneeRobo to realize involuntary internal/external rotation during knee flexion and extension. However, it is well known that in addition to internal/external rotation, abduction/adduction also occurs involuntarily during knee flexion and extension. Consequently, this paper proposes a new control method that improves the simulation accuracy of KneeRobo’s knee joint movements. This is accomplished by developing a control algorithm and designing a pulley arrangement that facilitates realization of involuntary movements such as internal/external rotation and abduction/adduction during knee flexion and extension by KneeRobo. The results of experimental comparison with the actual knee joint movements of a healthy person confirm that the knee joint movements simulated by the improved KneeRobo are accurate.
Kyoichi Ogawa,Tamon Kabata,Toru Maeda,Yoshitomo Kajino,Hiroyuki Tsuchiya 대한정형외과학회 2014 Clinics in Orthopedic Surgery Vol.6 No.2
Background: Several studies have shown that better placement of the acetabular cup and femoral stem can be achieved in total hip arthroplasty (THA) by using the computer navigation system rather than the free-hand alignment methods. However, there have been no comparisons of the relevant clinical advantages in using the computer navigation as opposed to the manual intraoperative measurement devices. The purpose of this study is to determine whether the use of computer navigation can improve postoperative leg length discrepancy (LLD) compared to the use of the measurement device. Methods: We performed a retrospective study comparing 30 computer-assisted THAs with 40 THAs performed using a simple manual measurement device. Results: The postoperative LLD was 3.0 mm (range, 0 to 8 mm) in the computer-assisted group and 2.9 mm (range, 0 to 10 mm) in the device group. Statistically significant difference was not seen between the two groups. Conclusions: The results showed good equalization of the leg lengths using both computed tomography-based navigation and the simple manual measurement device.
Itoh, Shigeru,Fukushima, Yoshimasa,Itoh, Kunihiro,Maeda, Masanori,Mino, Hiroyuki,Kumazaki, Shigeichi Korean Society of Photoscience 2002 Journal of Photosciences Vol.9 No.2
A cyanobacteria-like organism Aaryochloris marina performs oxygenic photosynthesis with near far-red light by the use of chlorophyll d. Reaction center chlorophyll (Chl) of Photosystem (PS) II of A. marina was studied by analysis of millisecond-delayed fluorescence. Delayed fluorescence is emitted by Chi d indicating efficient energy transfer between antenna Chi d molecules and the unknown primary electron donor of PS II. P740 a reaction center Chl of PS I of A. marina is shown to give a dimer type cation, and triplet state with a D value of 245xlO$\^$-4/ cm$\^$-l/ in contrast to the 280-290 xlO$\^$-4/cm$\^$-l/ values of P700 suggesting triplet spins interacting at a 5% larger distance in P740 than in P700.