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Masahiro Shibuya,Kenichi Iida,Koki Mikami,Shuichi Kamota 대한인간공학회 2007 대한인간공학회 학술대회논문집 Vol.- No.-
In order to contribute to the vitalization of the economy of Japan and its northern main island Hokkaido, we applied for “academia-industry joint projects” sponsored by the Ministry of Economy, Trade and Industry of Japan, were adopted, and developed curriculums for “Hokkaido-type training program curriculums for production management core human resources”. The completed curriculums are expected to be great use to training workers in the Hokkaido manufacturing industry to be ones with the power of KAIZEN and management. In this report are explained the characteristics of the Hokkaido-type training program for production control core human resources developed by Hokkaido Institute of Technology and Hokkaido Industrial Research Institute and its 2007 contents. The purpose is to contribute to the development of training programs of human resources for manufacturing in Korea.
Masahiro Nakamura,Takeshi Yanagita,Tatsushi Matsumura,Takashi Yamashiro,Seiji Iida,Hiroshi Kamioka 대한치과교정학회 2016 대한치과교정학회지 Vol.46 No.6
We report a case involving a young female patient with severe mandibular retrognathism accompanied by mandibular condylar deformity that was effectively treated with Le Fort I osteotomy and two genioplasty procedures. At 9 years and 9 months of age, she was diagnosed with Angle Class III malocclusion, a skeletal Class II jaw relationship, an anterior crossbite, congenital absence of some teeth, and a left-sided cleft lip and palate. Although the anterior crossbite and narrow maxillary arch were corrected by interceptive orthodontic treatment, severe mandibular hypogrowth resulted in unexpectedly severe mandibular retrognathism after growth completion. Moreover, bilateral condylar deformities were observed, and we suspected progressive condylar resorption (PCR). There was a high risk of further condylar resorption with mandibular advancement surgery; therefore, Le Fort I osteotomy with two genioplasty procedures was performed to achieve counterclockwise rotation of the mandible and avoid ingravescence of the condylar deformities. The total duration of active treatment was 42 months. The maxilla was impacted by 7.0 mm and 5.0 mm in the incisor and molar regions, respectively, while the pogonion was advanced by 18.0 mm. This significantly resolved both skeletal disharmony and malocclusion. Furthermore, the hyoid bone was advanced, the pharyngeal airway space was increased, and the morphology of the mandibular condyle was maintained. At the 30-month follow-up examination, the patient exhibited a satisfactory facial profile. The findings from our case suggest that severe mandibular retrognathism with condylar deformities can be effectively treated without surgical mandibular advancement, thus decreasing the risk of PCR.
Improvement of execution efficiency on a massively parallel SIMD accelerator
Mitsutaka Nakano,Masahiro Iida,Toshinori Sueyoshi 대한전자공학회 2009 ITC-CSCC :International Technical Conference on Ci Vol.2009 No.7
SIMD (Single Instruction/Multiple Data) type processors have the advantage of smaller area as compared with a general processor, DSP and many MIMD (Multiple Instruction/Multiple Data) type processors. On the other hand, the performance depends on the parallel degree of data in an application. MX Core which was developed by Renesas technology Corp., is a massively parallel SIMD type accelerator. We propose a method to improve execution efficiency of the MX Core in this paper. Our methodology includes optimization of calculation precision and change data transfer structure to MIMD type. As a result of evaluation, we improved parallel operation degree. The proposal structure reduced data transfer pro-cessings of IMDCT by 90%, and speed up processing time of IMDCT by 2.65 times compared with traditional implementation of the MX Core.