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Application of free surface synthetic schlieren method in determining surface tension from a light floating object

Journal of Physics: Conference Series 2019年第1期1380卷

作者： C Pathommapas S Yapo E Seesomboon N Pussadee Master's Degree Program in Teaching Physics Faculty of Science Chiang Mai University Chiang Mai 50200 Thailand Science Department Udomdarunee School Sukhothai 52000 Thailand Department of Mechanical Engineering Faculty of Engineering Chiang Mai University Chiang Mai 50200 Thailand Plasma and Beam Physics Research Facility Department of Physics and Materials Science Chiang Mai University Chiang Mai 50200 Thailand Thailand Center of Excellence in physics Commission on Higher Education 328 Si Ayutthaya Road Bangkok 10400 Thailand

Free surface synthetic schlieren (FS-SS) is a liquid surface topography visualization technique relying on apparent dot pattern displacement due to liquid surface deformation. It has gained attention in the fluid visualization field due to its relatively simple and inexpensive setup. One of the most powerful features of the FS-SS technique is the 3D topography of deformed liquid surface, in which submillimeter scale changes can be readily observed in great detail. The visualization of liquid meniscus at the solid interface is proposed in this study to calculate surface tension by equating the surface tension force with weight of light, floating object with circular geometry. It was found that surface tensions of liquids are much greater than anticipated, suggesting that the effect of buoyant force of displaced liquid due to deformed interface cannot be neglected. When the buoyant force is included, the calculated surface tension of liquids are within 10% of the reference values.

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Bioprinting: Microfluidics‐Enabled Multimaterial Maskless Stereolithographic Bioprinting (Adv. Mater. 27/2018)

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Advanced materials 2018年第27期30卷

作者： Amir K. Miri Daniel Nieto Luis Iglesias Hossein Goodarzi Hosseinabadi Sushila Maharjan Guillermo U. Ruiz‐Esparza Parastoo Khoshakhlagh Amir Manbachi Mehmet Remzi Dokmeci Shaochen Chen Su Ryon Shin Yu Shrike Zhang Ali Khademhosseini Division of Engineering in Medicine Department of Medicine Brigham and Women's Hospital Harvard Medical School Cambridge MA 02139 USA Harvard‐MIT Division of Health Sciences and Technology Massachusetts Institute of Technology Cambridge MA 02139 USA Microoptics and GRIN Optics Group Applied Physics Department Faculty of Physics University of Santiago de Compostela Santiago de Compostela 15782 Spain Polymeric Materials Research Group Department of Materials Science and Engineering Sharif University of Technology Tehran *** Iran Department of Biomedical Engineering Whiting School of Engineering Johns Hopkins University Baltimore MD 21218 USA Department of NanoEngineering University of California San Diego La Jolla CA 92093 USA Department of Bioengineering University of California San Diego La Jolla CA 92093 USA Materials Science and Engineering Program University of California San Diego La Jolla CA 92093 USA Center for Minimally Invasive Therapeutics (C‐MIT) University of California‐Los Angeles Los Angeles CA 90095 USA Department of Radiology David Geffen School of Medicine University of California‐Los Angeles Los Angeles CA 90095 USA Department of Bioengineering Department of Chemical and Biomolecular Engineering Henry Samueli School of Engineering and Applied Sciences University of California‐Los Angeles Los Angeles CA 90095 USA California NanoSystems Institute (CNSI) University of California‐Los Angeles Los Angeles CA 90095 USA Department of Bioindustrial Technologies Konkuk University Seoul 143‐701 Republic of Korea

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Interferometric imaging, and beam-formed study of a moving Type IV Radio burst with LOFAR

arXiv

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arXiv 2022年

作者： Liu, Hongyu Zucca, Pietro Cho, Kyung-Suk Kumari, Anshu Zhang, Peijin Magdalenić, Jasmina Kim, Rok-Soon Kim, Sujin Kang, Juhyung Korea Astronomy and Space Science Institute 776 Daedeokdae-ro Yuseong-gu Daejeon34055 Korea Republic of Center for Magnetic Materials and Devices College of Physics and Electronic Engineering Qujing Normal University Qujing655011 China ASTRON The Netherlands Institute for Radio Astronomy Oude Hoogeveensedijk 4 Dwingeloo7991PD Netherlands University of Science and Technology 217 Gajeong-ro Yuseong-gu Daejeon34113 Korea Republic of Department of Physics University of Helsinki Pietari Kalmin katu 5 Helsinki00560 Finland Institute of Astronomy National Astronomical Observatory Bulgarian Academy of Sciences Sofia1784 Bulgaria Solar-Terrestrial Center of Excellence–SIDC Royal Observatory of Belgium Av. Circulaire 3 BrusselsB-1180 Belgium Center for mathematical Plasma Astrophysics Department of Mathematics KU Leuven Celestijnenlaan 200B LeuvenB-3001 Belgium Astronomy Program Department of Physics and Astronomy Seoul National University Seoul08826 Korea Republic of

Type IV radio burst has been studied for over 50 years. However, the specifics of the radio emission mechanisms is still an open question. In order to provide more information about the emission mechanisms, we studied a moving type IV radio burst with fine structures (spike group) by using the high resolution capability of Low-Frequency Array (LOFAR) on Aug 25, 2014 (SOLA-D-21-00188). We present a comparison of Nançay RadioHeliograph (NRH) and the first LOFAR imaging data of type IV radio burst. The degree of circular polarization (DCP) is calculated at frequencies in the range 20∼180 MHz using LOFAR data, and it was found that the value of DCP gradually increased during the event, with values of 10%∼20%. LOFAR interferometric data were combined with white light observations in order to track the propagation of this type IV. The kinematics shows a westward motion of the radio sources, slower than the CME leading edge. The dynamic spectrum of LOFAR shows a large number of fine structures with duration of less than 1s and high brightness temperature (TB), i.e. 1012∼1013 K. The gradual increase of DCP supports gyrosynchrotron emission as the most plausible mechanism for the type IV. However, coherent emissions such as Electron Cyclotron Maser (ECM) instability can be responsible for small scale fine structures. Countless fine structures altogether were responsible for such high TB © 2022, CC BY-NC-SA.

关键词： Interferometry

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Molecular landscape of sex- and modality-specific exercise adaptation in human skeletal muscle through large-scale multi-omics integration

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Cell Reports 2025年第6期44卷 115750页

作者： Macsue Jacques Shanie Landen Adam P. Sharples Andrew Garnham Ralf Schittenhelm Joel Steele Aino Heikkinen Elina Sillanpää Miina Ollikainen James Broatch Navabeh Zarekookandeh Ola Hanson Ola Ekström Olof Asplund Séverine Lamon Sarah E. Alexander Cassandra Smith Carlie Bauer Mary N. Woessner Itamar Levinger Andrew E. Teschendorff Linn Gillberg Ida Blom Jørn Wulff Helge Nicholas R. Harvey Larisa M. Haupt Lyn R. Griffiths Atul S. Deshmukh Kirsi H. Pietiläinen Päivi Piirilä Robert A.E. Seaborne Marie Klevjer Anja Bye Ulrik Wisløff Bernadette Jones-Freeman Nir Eynon Australian Regenerative Medicine Institute Monash University Clayton VIC Australia Institute for Health and Sport (iHeS) Victoria University Footscray VIC Australia Centre for Endocrinology and Metabolism Hudson Institute of Medical Research Melbourne VIC Australia Institute of Physical Performance Norwegian School of Sport Sciences Oslo Norway Monash Proteomics & Metabolomics Platform Monash Biomedicine Discovery Institute Monash University Melbourne VIC Australia Institute for Molecular Medicine Finland (FIMM) Helsinki University Helsinki Finland Faculty of Sport and Health Sciences University of Jyväskylä Jyväskylä Finland Wellbeing Services County of Central Finland Jyväskylä Finland Minerva Foundation Institute for Medical Research Helsinki Finland Department of Clinical Sciences Translational Muscle Research Unit Lund University Diabetes Center Lund University Lund Sweden Institute for Physical Activity and Nutrition (IPAN) School of Exercise and Nutrition Sciences Deakin University 221 Burwood Highway Burwood VIC 3125 Australia Cardiometabolic Health and Exercise Physiology Laboratory Baker Heart and Diabetes Institute 75 Commercial Road Melbourne VIC 3004 Australia Nutrition & Health Innovation Research Institute Edith Cowan University Joondalup WA Australia Medical School The University of Western Australia Perth WA Australia Australian Institute for Musculoskeletal Science (AIMSS) Victoria University Melbourne VIC Australia CAS Key Lab of Computational Biology Shanghai Institute of Nutrition and Health Shanghai China Department of Biomedical Sciences University of Copenhagen Copenhagen Denmark Faculty of Health Sciences and Medicine Bond University Gold Coast QLD Australia Genomics Research Centre Centre for Genomics and Personalised Health School of Biomedical Sciences Queensland University of Technology Brisbane QLD Australia ARC Training Centre for Cell and Tissue Engineering Technologies Queensland University of Technology (Q

We investigated the molecular mechanisms of exercise adaptations in human muscle by integrating genome, methylome, transcriptome, and proteome data from over 1,000 participants (2,340 muscle samples). We identified distinctive signatures associated with maximal oxygen consumption (VO2max), and multi-omics integration uncovered five key genes as robust exercise markers across layers, with transcription factors functioning as activators, synergizing with DNA methylation to regulate gene expression. Minimal sex differences were observed, while modality-specific analysis highlighted distinct pathways for aerobic and resistance exercise, contrasting with muscle disuse patterns. Finally, we created a webtool, OMAx, featuring our individual omics and integration analysis. These findings provide a comprehensive multi-omics framework for understanding exercise-induced molecular adaptations, offering insights into muscle health, cardiorespiratory fitness, and their roles in aging and disease prevention.

关键词： skeletal muscle Multi Omics epigenetics DNA methylation exercise VO2 max gene expression transcriptomic proteomic

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Functionalization of basic oxygen steelmaking slag

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AIP Conference Proceedings 2023年第1期2643卷

作者： Lucy V. Fisher Andrew R. Barron 1Energy Safety Research Institute (ESRI) Swansea University Bay Campus Swansea SA1 8EN UK 2Arizona Institute for Resilient Environments and Societies (AIRES) University of Arizona Tucson Arizona 85721 USA 3Department of Chemistry and Department of Materials Science and Nanoengineering Rice University Houston Texas 77005 USA 4Faculty of Engineering Universiti Teknologi Brunei Bandar Seri Begawan Brunei Darussalam

Basic oxygen steelmaking slag has been tested as a starter material for functionalization using isostearic and lauric acid and the protected ester, lanolin, to produce hydrophobic particles, while cysteic acid was used to test if increased hydrophilic functionalization could be achieved. Lauric acid resulted in the highest contact angle measurement for functionalizing the surface of the BOS slag, which is proposed to be due to the high grafting density on the surface of the BOS slag as compared to reactions with isostearic and lanolin; however, large contact angle hysteresis was also observed on the lauric acid functionalized surface, suggesting the surface was rough and not homogeneous. Water adsorption time was increased when using cysteic acid to functionalize the surface of the slag, encouraging a more hydrophilic surface.

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From Dissemination to Propagation: A New Paradigm for Education Developers

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Change 2017年第4期49卷 35-42页

作者： Froyd, Jeffrey E. Henderson, Charles Cole, Renée S. Friedrichsen, Debra Khatri, Raina Stanford, Courtney Jeffrey E. Froyd is a Research Professor at Texas A&M University. His research interests include sustained adoption of improvements in learning and teaching systematic reviews in engineering education evaluation of faculty campus climates and assessment of complex learning outcomes. Charles Henderson is a Professor at Western Michigan University with a joint appointment between the Department of Physics and the Mallinson Institute for Science Education. His research focuses on promoting productive changes in higher education at the individual department institution and national levels. Renée S. Cole is an Associate Professor of Chemistry at the University of Iowa. She teaches introductory and advanced courses in chemistry and runs a research program focused on the design and assessment of instructional materials and teaching strategies and faculty professional development. Debra Friedrichsen founded and operates a small consulting company. She received her Ph.D. from Oregon State University in Chemical Engineering with a dissertation focused on engineering education. Debra also has a MBA a MS and a patent for sensor development. Raina Khatri is a doctoral student in the Mallinson Institute for Science Education at Western Michigan University. Her research focus is understanding how education developers in STEM can promote sustained adoption of their innovations. Courtney Stanford is a postdoctoral researcher in the Department of Chemistry at Virginia Commonwealth University. Her current research focuses on the identification development and assessment of process skills (also known as professional skills) in active learning undergraduate STEM classrooms.

Scholarly studies and national reports document failure of current efforts to achieve broad, sustained adoption of research-based instructional practices, despite compelling bodies of evidence supporting efficacy of many of these practices. The authors of this paper argue that many change agents who are working to promote systemic adoption of these teaching practices use approaches that are characterized by what the authors call the "dissemination paradigm." A dissemination paradigm characterizes patterns of these current, failing efforts. Change agents, working within the dissemination paradigm, try to convince adopters that their innovations can help their students. Efforts within the dissemination paradigm have not led, and are unlikely to lead, to systemic adoption. The authors offer the "propagation paradigm" as an alternative with the potential to produce improved results. Change agents, working within the propagation paradigm, engage with adopters early and often to understand their instructional systems and interactively develop a strong product adaptable to specific contexts.

关键词： Models Change Agents Teaching Methods Information Dissemination Educational Innovation Instructional Systems STEM Education Comparative Analysis

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Nuclear Mechanics: Nuclear Mechanics within Intact Cells Is Regulated by Cytoskeletal Network and Internal Nanostructures (Small 18/2020)

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Small 2020年第18期16卷

作者： Jitao Zhang Farid Alisafaei Miloš Nikolić Xuefei A. Nou Hanyoup Kim Vivek B. Shenoy Giuliano Scarcelli Fischell Department of Bioengineering University of Maryland College Park MD 20742 USA Department of Materials Science and Engineering School of Engineering and Applied Science University of Pennsylvania Philadelphia PA 19104 USA Center for Engineering Mechanobiology University of Pennsylvania Philadelphia PA 19104 USA Maryland Biophysics Program University of Maryland College Park MD 20742 USA Canon U.S. Life Sciences Inc. 9800 Medical Center Drive Suite C-120 Rockville MD 20850 USA

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Frontispiece: Visible Light-Driven Molecular Switches and Motors: Recent Developments and Applications

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Chemistry – A European Journal 2022年第18期28卷

作者： Dr. Hao Wang Dr. Hari Krishna Bisoyi Xinfang Zhang Dr. Fathy Hassan Prof. Quan Li Advanced Materials and Liquid Crystal Institute and Chemical Physics Interdisciplinary Program Kent State University Kent Ohio 44242 USA Department of Chemistry Faculty of Science Tanta University Tanta El-Gharbia 31527 Egypt Institute of Advanced Materials School of Chemistry and Chemical Engineering and Jiangsu Province Hi-Tech Key Laboratory for Biomedical Research Southeast University Nanjing 211189 China

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Cover Feature: Chemo-Biological Upcycling of Poly(ethylene terephthalate) to Multifunctional Coating materials (ChemSusChem 19/2021)

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ChemSusChem 2021年第19期14卷

作者： Prof. Hee Taek Kim Mi Hee Ryu Ye Jean Jung Sooyoung Lim Hye Min Song Prof. Jeyoung Park Prof. Sung Yeon Hwang Dr. Hoe-Suk Lee Prof. Young Joo Yeon Dr. Bong Hyun Sung Prof. Uwe T. Bornscheuer Prof. Si Jae Park Prof. Jeong Chan Joo Prof. Dongyeop X. Oh Department of Food Science and Technology Chungnam National University Daejeon 34134 (Republic of Korea Research Center for Bio-based Chemicals Korea Research Institute of Chemical Technology Daejeon 34114 & Ulsan 44429 (Republic of Korea Department of Chemical Engineering and Materials Science Graduate Program in System Health Science & Engineering Ewha Womans University Seoul 03760 (Republic of Korea Advanced Materials and Chemical Engineering University of Science and Technology (UST) Daejeon 34113 (Republic of Korea Department of Biochemical Engineering Gangneung-Wonju National University Gangneung-si Gangwon-do 25457 (Republic of Korea Synthetic Biology and Bioengineering Research Center Korea Research Institute of Bioscience and Biotechnology Daejeon 34141 (Republic of Korea Department of Biotechnology & Enzyme Catalysis Institute of Biochemistry University of Greifswald 17487 Greifswald Germany Department of Biotechnology The Catholic University of Korea Bucheon-si Gyeonggi-do 14662 (Republic of Korea

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Rational design of pyrene and thienyltriazine-based conjugated microporous polymers for high-performance energy storage and visible-light photocatalytic hydrogen evolution from water

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Giant 2024年 17卷

作者： Santosh U. Sharma Mohamed Hammad Elsayed Islam M.A. Mekhemer Tso Shiuan Meng Ho-Hsiu Chou Shiao-Wei Kuo Mohamed Gamal Mohamed Department of Chemistry National Sun Yat-Sen University Kaohsiung 80424 Taiwan International PhD Program for Science National Sun Yat-sen University Kaohsiung 80424 Taiwan Department of Chemistry Faculty of Science Al-Azhar University Nasr City 11884 Cairo Egypt Department of Chemical Engineering National Tsing Hua University Hsinchu 300044 Taiwan Chemistry Department Faculty of Science Assiut University Assiut 71515 Egypt Department of Materials and Optoelectronic Science College of Semiconductor and Advanced Technology Research Center for Functional Polymers and Supramolecular Materials National Sun Yat-Sen University Kaohsiung 804 Taiwan Department of Medicinal and Applied Chemistry Kaohsiung Medical University Kaohsiung 807 Taiwan

Conjugated microporous polymers (CMPs) have found extensive applications in various fields such as optoelectronics, CO 2 capture, and catalysis. However, their potential in electrochemical supercapacitors as energy storage and H 2 production systems remains relatively unexplored. This limited exploration can be attributed to certain challenges, including issues related to structural and electrochemical stability, as well as the relatively modest specific capacitance. Additionally, many of the CMPs discovered thus far have exhibited lower energy densities, further contributing to this underexplored aspect of their utility. In this study, we prepared two different CMPs [TPET-TTh and PyT-TTh CMPs] containing thienyltriazine units (TTh) for the redox mechanism and constructed electrodes for supercapacitor applications. The synthesized TPET-TTh and PyT-TTh CMPs displayed exceptionally high specific surface areas of 545 and 528 m² g⁻¹, respectively. Furthermore, their pore sizes were very similar, centered at approximately 0.39 and 0.36 nm, respectively. To evaluate their electrochemical properties, the TTh-CMPs were examined using cyclic voltammetry (CV) and galvanostatic charge/discharge (GCD). The resulting CV curves exhibited rectangular shapes, indicative of the characteristic behavior of electric double-layer capacitors, across a range of potential and scan rates. These TPET-TTh and PyT-TTh CMPs delivered nominal specific capacitances of 74 and 76 F g −1 at 0.5 A g −1 , respectively. In addition, they exhibited outstanding capacity retentions of 95.2 and 97.30 % even after 2000 cycles [analyzed at 10 A g −1 ]. The TTh-CMPs also exhibited excellent light-capture capabilities. The PyT-TTh CMP has faster charge separation and lower charge recombination rates than TPET-TTh CMP. This results in a higher hydrogen evolution rate from the water decomposition reaction. The H 2 production rate of PyT-TTh CMP could be as high as 18,533 μmol g −1 h −1 , which is approximately 4

关键词： Pyrene 2,4,6-tri(thiophen-2-yl)-1,3,5-triazine Conjugated microporous polymer Supercapacitors H 2 evolution

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