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- 저자 : Palinkas, Vojt (검색결과 4 건)
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Moire superlattices in strained graphene-gold hybrid nanostructures
Palinkas, A.,Sule, P.,Szendro, M.,Molnar, G.,Hwang, C.,Biro, L.P.,Osvath, Z. Pergamon Press ; Elsevier Science Ltd 2016 Carbon Vol.107 No.-
<P>Graphene-metal nanoparticle hybrid materials potentially display not only the unique properties of metal nanoparticles and those of graphene, but also additional novel properties due to the interaction between graphene and nanoparticles. This study shows that gold nanoislands can be used to tailor the local electronic properties of graphene. Graphene on crystalline gold nanoislands exhibits moire superlattices, which generate secondary Dirac points in the local density of states. Conversely, the graphene covered gold regions undergo a polycrystalline -> Au (111) phase transition upon annealing. Moreover, the nanoscale coexistence of moire superlattices with different moire periodicities has also been revealed. Several of these moire periodicities are anomalously large, which cannot be explained by the standard lattice mismatch between the graphene and the topmost Au (111) layers. Density functional theory and molecular dynamics simulations show for the first time that in such cases the graphene and the interfacial metallic layer is strained, leading to distorted lattice constants, and consequently to reduced misfit. Room temperature charge localization induced by a large wavelength moire pattern is also observed by scanning tunneling spectroscopy. These findings can open a route towards the strain engineering of graphene/metal interfaces with various moire superlattices and tailored electronic properties for nanoscale information coding. (C) 2016 Elsevier Ltd. All rights reserved.</P>
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Marcelo Palinkas,Regina Maura Arantes Nassar,Mariangela Salles Pereira Nassar,Solange Aparecida Bataglion,César Bataglion,Cássio Edvard Sverzut,Takami Hirono Hotta,Simone Cecilio Hallak Regalo 셀메드 세포교정의약학회 2012 TANG Vol.2 No.1
The traumatic removal of the mandibular third molar may promote post chirurgic consequences such as orofacial pain and limited mandibular movements. The aim of this case report is to describe the use of an anterior bite plane and complementary therapies (low level laser therapy and acupuncture) to treat the muscular dysfunction and the painful symptoms. A 33 year-old male patient who had a severe malocclusion and signs and symptoms of temporomandibular dysfunction was submitted to an initial clinical examination: electromyography of the masticatory muscles and IRM of the temporomandibular joint. After treatments, the results showed reduced pain symptoms and an increase of the mandibular movements and adequated electromiographic activities. The authors concluded that the combination therapies may be used as an alternative treatment because it satisfied the functional requirements of the patient and provided an asymptomatic clinical condition.
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Functional assessment of respiratory muscles and lung capacity of CrossFit athletes
Saulo Cesar Vallin Fabrin,Marcelo Palinkas,Evandro Marianetti Fioco,Guilherme Gallo Costa Gomes,Eloisa Maria Gatti Regueiro,Gabriel Pádua da Silva,Selma Siéssere,Edson Donizetti Verri,Simone Cecilio H 한국운동재활학회 2023 JER Vol.19 No.1
CrossFit is a high-intensity training related to physical fitness and respiratory capacity that can promote changes in lung function. This crosssectional study was aimed at evaluating respiratory muscle strength, electromyographic (EMG) activity, and lung capacity in CrossFit athletes. Thirty subjects aged between 25 and 35 years were divided into groups: CrossFit athletes (n= 15) and sedentary individuals without comorbidities (n= 15). Respiratory muscle strength was evaluated using maximal inspiratory and expiratory pressures, lung capacity, and EMG of the sternocleidomastoid, serratus anterior, external intercostal, and diaphragm muscles at respiratory rest, maximal inspiration and expiration, and respiratory cycle. Data were tabulated and subjected to statistical analyses (t-test and Spearman test, P< 0.05). Respiratory muscle strength on EMG of the sternocleidomastoid, serratus, external intercostal, and diaphragm muscles at the respiratory cycle and maximal forced inspiration and expiration were higher in the CrossFit athletes group than in the sedentary group without comorbidities. CrossFit athlete group showed significantly strong positive correlation between maximal inspiratory and expiratory muscle strengths (Spearman rho= 0.903, P= 0.000), with increasing muscle strength during inspiration favoring an increase in strength during expiration. The forced vital capacity (FVC) and forced expiratory volume in 1 sec (FEV1) also showed a significantly high positive correlation (Spearman rho= 0.912, P= 0.000) in the CrossFit athletes group, showing that higher FVC favors higher FEV1. The results of this study suggest that improved fitness is based on increased respiratory muscle strength on EMG in CrossFit athletes.
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Final report of key comparison CCM.G-K1: International comparison of absolute gravimeters ICAG2009
Arias, E Felicitas,Jiang, Zhiheng,Robertsson, Lennart,Vitushkin, Leonid,Ruess, Diethard,Ullrich, Christian,Inglis, Dave,Liard, Jacques,Robinson, Ian,Ji, Wangxi,Shuqing, Wu,Lee, Chiungwu,Palinkas, Vojt Springer-Verlag 2012 METROLOGIA -BERLIN- Vol.49 No.-
<P>The International Comparison of Absolute Gravimeters 2009 (ICAG2009) was carried out in September 2009 at the International Bureau of Weights and Measures (BIPM). The ICAG2009 and its data processing were performed in accordance with the agreed Technical Protocol which was approved by the Steering Committee. The pilot laboratory (BIPM) evaluated the final results of the key comparison from the measurements made at the BIPM in the framework of ICAG2009. A pilot study run in parallel allowed evaluation of the offsets for absolute gravimeters from institutes not fulfilling the requirements for participating in the key comparison. The gravity values at the five stations, and the offsets for each absolute gravimeter, were obtained by a weighted least squares fit. The results indicate that all participating gravimeters are consistent within their expanded uncertainties.</P><P>Main text.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.</P><P>The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).</P>
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