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Hiroshi Nishimura,Hikari Shimadera,Akira Kondo,Kazuyo Akiyama,Yoshio Inoue 한국대기환경학회 2015 Asian Journal of Atmospheric Environment (AJAE) Vol.9 No.4
This study conducted analyses on biogenic volatile organic compounds (BVOC) emission sources contributing to urban ozone (O3) concentration in Osaka Prefecture, Japan in summer 2010 by using the Weather Research and Forecasting model (WRF) version 3.5.1 and the Community Multiscale Air Quality model (CMAQ) version 5.0.1. This prefecture is characterized by highly urbanized area with small forest area. The contributions of source regions surrounding Osaka were estimated by comparing the baseline case and zero-out cases for BVOC emissions from each source region. The zero-out emission runs showed that the BVOC emissions substantially contributed to urban O3 concentration in Osaka (10.3 ppb: 15.9% of mean daily maximum 1-h O3 concentration) with day-by-day variations of contributing source regions, which were qualitatively explained by backward trajectory analyses. Although O3 concentrations were especially high on 23 July and 2 August 2010, the contribution of BVOC on 23 July (35.4 ppb: 25.6% of daily maximum O3) was much larger than that on 2 August (20.9 ppb: 14.2% of daily maximum O3). To investigate this difference, additional zero-out cases for anthropogenic VOC (AVOC) emissions from Osaka and for VOC emissions on the target days were performed. On 23 July, the urban O3 concentration in Osaka was dominantly increased by the transport from the northwestern region outside Osaka with large contribution of O3 that was produced through BVOC reactions by the day before and was retained over the nocturnal boundary layer. On 2 August, the concentration was dominantly increased by the local photochemical production inside Osaka under weak wind condition with the particularly large contribution of AVOC emitted from Osaka on the day.
Electromyogram Signal Processing by Using M-transform
Hiroshi Harada,Hiroshi Kashiwagi,Hikaru Nishimura,Yoshifumi Ohbuchi,Teruo Yamaguchi 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
The authors propose a new method for reducing both impulsive noise and white noise by use of M-transform and wavelet shrinkage. M-transform is a new signal transformation proposed by the authors, and any periodic time signal can be considered as the output of a filter whose input is an M-sequence. By using the properties of M-transform, it is shown that both impulsive noise and white noise can be eliminated by use of first M-transform and then wavelet shrinkage. In this paper, the proposed noise reduction method is applied to the electromyogram signal which sometimes contains many impulsive noise and white noise. From the results of the experiment, it is shown that the proposed method is very efficient for impulsive noise reduction.
Nishimura, Gen,Dai, Jin,Lausch, Ekkehart,Unger, Sheila,Megarbané,, André,Kitoh, Hiroshi,Kim, Ok Hwa,Cho, Tae-Joon,Bedeschi, Francesca,Benedicenti, Francesco,Mendoza-Londono, Roberto,Sileng Wiley Subscription Services, Inc., A Wiley Company 2010 AMERICAN JOURNAL OF MEDICAL GENETICS PART A Vol.a152 No.6
<P>Recent discoveries have established the existence of a family of skeletal dysplasias caused by dominant mutations in TRPV4. This family comprises, in order of increasing severity, dominant brachyolmia, spondylo-metaphyseal dysplasia Kozlowski type, and metatropic dysplasia. We tested the hypothesis that a further condition, Spondylo-epiphyseal dysplasia (SED), Maroteaux type (MIM 184095; also known as pseudo-Morquio syndrome type 2), could be caused by TRPV4 mutations. We analyzed six individuals with Maroteaux type SED, including three who had previously been reported. All six patients were found to have heterozygous TRPV4 mutations; three patients had unreported mutations, while three patients had mutations previously described in association with metatropic dysplasia. In addition, we tested one individual with a distinct rare disorder, parastremmatic dysplasia (MIM 168400). This patient had a common, recurrent mutation seen in several patients with Kozlowski type spondylo-metaphyseal dysplasia. We conclude that SED Maroteaux type and parastremmatic dysplasia are part of the TRPV4 dysplasia family and that TRPV4 mutations show considerable variability in phenotypic expression resulting in distinct clinical-radiographic phenotypes. © 2010 Wiley-Liss, Inc.</P>
Slide-bending Formation of Thin Metal Sheet by Using Force Control
Hikaru Nishimura,Hiroshi Harada,Yasuo Marumo,Teruo Yamaguchi 제어로봇시스템학회 2009 제어로봇시스템학회 국제학술대회 논문집 Vol.2009 No.8
This paper describes slide-bending formation of thin metal sheet by using an industrial robot. The formation of parts made of very thin sheets has become increasingly important following the miniaturization of industrial products, including electrical and mechanical devices. A new process called a slide-bending formation was proposed. The authors have made an automatic slide-bending formation system which consists of an industrial robot, z-axis stage, a force sensor and a CCD camera. The bending formation of metal sheet made by stainless steel was investigated system atically. From the results of the experiment, it is shown that the trajectory of the z-stage was controlled so that the reactive force is kept constant. The bending angle of the thin metal sheet can be controlled by the applied load.
Munhoz Luciana,Nishimura Danielle Ayumi,Iida Christyan Hiroshi,Watanabe Plauto Christopher Aranha,Arita Emiko Saito 대한영상치의학회 2021 Imaging Science in Dentistry Vol.51 No.3
Purpose: This study aimed to summarize the impact of neck and head radiation treatment on maxillofacial structures detected on panoramic radiographs. Materials and Methods: In this systematic review, the authors searched PubMed Central, Embase, Scopus, Cochrane Central Register of Controlled Trials, Web of Science, and Google Scholar for original research studies up to February 2020 that included the following Medical Subject Headings keywords: words related to “radiotherapy” and synonyms combined with keywords related to “panoramic radiography” and “oral diagnosis” and synonyms. Only original studies in English that investigated the maxillofacial effects of radiotherapy via panoramic radiographs were included. The quality of the selected manuscripts was evaluated by assessing the risk of bias using Cochrane’s ROBINS-I tool for non-randomized studies. Results: Thirty-three studies were eligible and included in this review. The main objectives pertained to the assessment of the effects of radiation on maxillofacial structures, including bone architecture alterations, periodontal space widening, teeth development abnormalities, osteoradionecrosis, and implant bone loss. The number of participants evaluated ranged from 8 to 176. Conclusion: The interaction between ionizing radiation and maxillofacial structures results in hazard to the tissues involved, particularly the bone tissue, periosteum, connective tissue of the mucosa, and endothelium. Hard tissue changes due to radiation therapy can be detected on panoramic radiographs.