http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Synthesis and Study of Redox-Active Acyclic Triazenes: Toward Electrochromic Applications
Ono, Robert J.,Suzuki, Yasuo,Khramov, Dimitri M.,Ueda, Mitsuru,Sessler, Jonathan L.,Bielawski, Christopher W. American Chemical Society 2011 Journal of organic chemistry Vol.76 No.9
<P>Coupling of various 4-substituted phenyl azides with two distinct quinone-containing N-heterocyclic carbenes (NHCs) afforded the respective mono- and ditopic 1,3-disubstituted acyclic triazenes in moderate to excellent yields (38−92%). Depending on their pendant substituents (derived from the azides), the acyclic triazenes exhibited intense absorptions in the visible spectrum (359−428 nm), which were bathochromically shifted by up to Δλ = 68 nm upon reduction of the quinone moiety on the component derived from the NHC. Cyclic voltammetry confirmed that the aforementioned redox processes were reversible, and a related set of UV−vis spectroelectrochemical experiments revealed that bulk electrolysis may also be used to switch reversibly the colors exhibited by these triazenes.</P><P><B>Graphic Abstract</B> <IMG SRC='http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/joceah/2011/joceah.2011.76.issue-9/jo200139f/production/images/medium/jo-2011-00139f_0008.gif'></P><P><A href='http://pubs.acs.org/doi/suppl/10.1021/jo200139f'>ACS Electronic Supporting Info</A></P>
Numerical Study of Grain Rotation in Polycrystalline Metal During Plastic Deformation
Abe, Takeji,Ono, Yasuo 대한금속재료학회(대한금속학회) 1998 METALS AND MATERIALS International Vol.4 No.3
When polycrystalline metals deform plastically, respective grains rotate due to crystal slips on the active slip planes and the preferred orientation is produced. In the present paper, the rate-type constitutive equation and the constant stress model of polycrystals are adopted, and the grain rotation is calculated for fcc and bcc metals. The rate sensitivity exponent in the rate-type constitutive equation is closely related to the number of active slip systems. So, the effect of the number of active slip systems on the grain rotation or the formation of texture is numerically studied and discussed.
Ogura, Ichiro,Minami, Yoshiyuki,Ono, Junya,Kanri, Yoriaki,Okada, Yasuo,Igarashi, Kensuke,Haga-Tsujimura, Maiko,Nakahara, Ken,Kobayashi, Eizaburo Korean Academy of Oral and Maxillofacial Radiology 2021 Imaging Science in Dentistry Vol.51 No.1
Purpose: The purpose of this study was to evaluate the cone-beam computed tomographic (CBCT) imaging and histopathological characteristics of osteoradionecrosis(ORN) and medication-related osteonecrosis of the jaw(MRONJ). Materials and Methods: Ten surgical specimens from segmental mandibulectomy (3 ORN and 7 MRONJ) were analyzed using CBCT. The CBCT parameters were as follows: high-resolution mode (tube voltage, 90.0 kV; tube current, 4.00 mA; rotation time, 16.8 s; field of view, 56 mm×56 mm; thickness, 0.099 mm). Histopathological characteristics were evaluated using histological slides of the surgical specimens. The Pearson chi-square test was used to compare ORN and MRONJ in terms of CBCT findings(internal texture, sequestrum, periosteal reaction and cortical perforation) and histopathological characteristics(necrotic bone, inflammatory cells, reactive bone formation, bacteria, Actinomyces, and osteoclasts). A P value less than 0.05 was considered to indicate statistical significance. Results: MRONJ showed periosteal reaction on CBCT more frequently than ORN (7 of 7 [100%] vs. 0 of 3 [0%], P<0.05). Regarding histopathological characteristics, MRONJ showed osteoclasts more frequently than ORN (6 of 7 [85.7%] vs. 0 of 3 [0%], P<0.05). Conclusion: This study evaluated the CBCT imaging and histopathological characteristics of ORN and MRONJ, and the findings suggest that CBCT could be useful for the evaluation of ORN and MRONJ.
Central giant cell lesion of the mandible in a 2-year old girl
Takaaki Oda,Mikiko Sue,Yasuo Okada,Yoriaki Kanri,Junya Ono,Ichiro Ogura 대한영상치의학회 2017 Imaging Science in Dentistry Vol.47 No.3
Central giant cell lesions are rare, benign, osteolytic, pseudocystic, solitary, localized lesions that are common in the skeletal structure, but less so in the maxillofacial region. Furthermore, to perform panoramic radiography and cone-beam computed tomography, it is necessary to prepare patients properly and to position their heads carefully. However, this can be difficult in pediatric patients, who may be anxious. In this report, we describe the case of a central giant cell lesion of the mandible in a 2-year-old girl that was evaluated with multidetector computed tomography.
Effect of Arrangement of Input Gates on Logic Switching Characteristics of Nanodot Array Device
JO, Mingu,KATO, Yuki,ARITA, Masashi,ONO, Yukinori,FUJIWARA, Akira,INOKAWA, Hiroshi,TAKAHASHI, Yasuo,CHOI, Jung-Bum 'Institute of Electronics, Information and Communi 2012 IEICE transactions on electronics Vol.95 No.5
Central giant cell lesion of the mandible in a 2-year old girl
Oda, Takaaki,Sue, Mikiko,Okada, Yasuo,Kanri, Yoriaki,Ono, Junya,Ogura, Ichiro Korean Academy of Oral and Maxillofacial Radiology 2017 Imaging Science in Dentistry Vol.47 No.3
Central giant cell lesions are rare, benign, osteolytic, pseudocystic, solitary, localized lesions that are common in the skeletal structure, but less so in the maxillofacial region. Furthermore, to perform panoramic radiography and cone-beam computed tomography, it is necessary to prepare patients properly and to position their heads carefully. However, this can be difficult in pediatric patients, who may be anxious. In this report, we describe the case of a central giant cell lesion of the mandible in a 2-year-old girl that was evaluated with multidetector computed tomography.
Ichiro Ogura,Hiroo Toshima,Tohru Akashiba,Junya Ono,Yasuo Okada 대한영상치의학회 2020 Imaging Science in Dentistry Vol.50 No.1
Computed tomography (CT) and magnetic resonance imaging (MRI) can be useful for the evaluation of palatal lesions, and strain elastography (performed together with intraoral ultrasonography) is a relatively new sonographic imaging modality. This report describes 2 clinical cases in which strain elastography was used to assess palatal tumors in conjunction with intraoral ultrasonography, CT, and MRI. In the first case, diagnosed as a myoepithelioma, the strain was determined to be 0.000% (strain of normal tissue, 0.556%). In the second case, diagnosed as an adenoid cystic carcinoma, the determined strain was 0.000% (strain of normal tissue, 1.077%). Therefore, we conclude that intraoral strain elastography can be useful for evaluating palatal lesions.
Ogura, Ichiro,Toshima, Hiroo,Akashiba, Tohru,Ono, Junya,Okada, Yasuo Korean Academy of Oral and Maxillofacial Radiology 2020 Imaging Science in Dentistry Vol.50 No.1
Computed tomography (CT) and magnetic resonance imaging (MRI) can be useful for the evaluation of palatal lesions, and strain elastography (performed together with intraoral ultrasonography) is a relatively new sonographic imaging modality. This report describes 2 clinical cases in which strain elastography was used to assess palatal tumors in conjunction with intraoral ultrasonography, CT, and MRI. In the first case, diagnosed as a myoepithelioma, the strain was determined to be 0.000% (strain of normal tissue, 0.556%). In the second case, diagnosed as an adenoid cystic carcinoma, the determined strain was 0.000% (strain of normal tissue, 1.077%). Therefore, we conclude that intraoral strain elastography can be useful for evaluating palatal lesions.
Naoki Kakuta,Ryuichi Nakano,Akiyo Nakano,Yuki Suzuki,Ayako Tanouchi,Takashi Masui,Saori Horiuchi,Shiro Endo,Risako Kakuta,Yasuo Ono,Hisakazu Yano 대한진단검사의학회 2020 Annals of Laboratory Medicine Vol.40 No.1
Background: Mutations in the quinolone resistance-determining regions (QRDRs) of Acinetobacter baumannii DNA gyrase (gyrA) and topoisomerase IV (parC) are linked to fluoroquinolone (FQ) resistance. We developed a mismatched PCR-restriction fragment length polymorphism (RFLP) assay to detect mutations in the gyrA and parC QRDRs associated with FQ resistance in A. baumannii. Methods: Based on the conserved sequences of A. baumannii gyrA and parC, two primer sets were designed for mismatched PCR-RFLP to detect mutations in gyrA (codons 83 and 87) and parC (codons 80 and 84) by introducing an artificial restriction enzyme cleavage site into the PCR products. This assay was evaluated using 58 A. baumannii strains and 37 other Acinetobacter strains that have been identified by RNA polymerase β-subunit gene sequence analysis. Results: PCR amplification of gyrA and parC was successful for all A. baumannii strains. In 11 FQ -susceptible strains, the gyrA and parC PCR products were digested by the selected restriction enzymes at the site containing gyrA (codons 83 and 87) and parC (codons 80 and 84). PCR products from 47 FQ-resistant strains containing mutations in gyrA and parC were not digested by the restriction enzymes at the site containing the mutation. As for the non-baumannii Acinetobacter strains, although amplification products for gyrA were obtained for 28 strains, no parC amplification product was obtained for any strain. Conclusions: This assay specifically amplified gyrA and parC from A. baumannii and detected A. baumannii gyrA and parC mutations with FQ resistance.