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Interpretation of gravity satellite data to delineate structural features connected to geothermal resources at Bur Ni Geureudong geothermal field

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IOP Conference Series: Earth and Environmental Science 2019年第1期364卷

作者： D R Putri M Nanda S Rizal R Idroes N Ismail Doctoral Program of Mathematics and Applied Science Universitas Syiah Kuala Banda Aceh 23111 Indonesia Marine Sciences Department Universitas Syiah Kuala Banda Aceh 23111 Indonesia Department of Chemistry Faculty of Mathematics and Natural Sciences Universitas Syiah Kuala Kopelma Darussalam Banda Aceh 23111 Indonesia Department of Pharmacy Faculty of Mathematics and Natural Sciences Universitas Syiah Kuala Kopelma Darussalam Banda Aceh 23111 Indonesia Department of Physics Faculty of Mathematics and Natural Science Universitas Syiah Kuala Banda Aceh 23111 Indonesia

The gravity method is broadly used in analyzing potential geothermal studies. The method can be used for determining potential areas, reservoir locations, and geological structure investigation. In this paper, satellite gravity data was applied for better understand the geological conditions connected with the geothermal system of Bur Ni Geureudong geothermal field, Bener Meriah District, Aceh, Indonesia. Open access Free Air anomaly data were provided by satellite geodesy information with 1 minute-grid. The data were reduced to obtain Bouguer anomaly distribution in the study area. Tilt derivative (TDR) technique was applied to Bouguer anomaly to enhance linear trends of geological structures. The aim of this analytical technique is able to clearly display faults correlated with geothermal manifestations around the Bur Ni Geureudong geothermal field. The complete Bouguer anomaly range of 20 mGal up to 170 mGal covers Bur Ni Geureudong volcano complex. A low Bouguer anomaly is located in all summits of volcanoes that are included in Bur Ni Geureudong Volcano Complex; those are summits of Bur Geureudong volcano, Bur Ni Telong Volcano, Pepanji Mountain, and Salah Nama Mountain. The low Bouguer anomaly is associated with the andesitic flow and volcanic ashes. The higher Bouguer Anomaly is reflected in high-density basement rock in the west of Geureudong Volcano. Tilt derivative (TDR) shows geological structures more detail, particularly, the tilt derivative (TDR) clearly detects two fault structures over the study area presented by a tilt value of zero. The results will be useful as basic information in exploration study of Bur Ni Geureudong geothermal field.

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Photonic-crystal exciton-polaritons in monolayer semiconductors

arXiv

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arXiv 2017年

作者： Zhang, Long Gogna, Rahul Burg, Will Tutuc, Emanuel Deng, Hui Physics Department University of Michigan 450 Church Street Ann ArborMI48109-2122 United States Applied Physics Program University of Michigan 450 Church Street Ann ArborMI48109-1040 United States Microelectronics Research Center Department of Electrical and Computer Engineering University of Texas at Austin AustinTX78758 United States

Semiconductor microcavity polaritons, formed via strong exciton-photon coupling, provide a quantum many-body system on a chip, featuring rich physics phenomena for better photonic technology. However, conventional polariton cavities are bulky, difficult to integrate, and inflexible for mode control, especially for room temperature materials. Here we demonstrate sub-wavelength thick one-dimensional photonic crystals (PCs) as a designable, compact and practical platform for strong coupling with atomically thin van der Waals Crystals (vdWCs). Polariton dispersions and mode anti-crossings are measured up to room temperature. Non-radiative decay to dark excitons was suppressed due to polariton enhancement of the radiative decay. Unusual features, including highly anisotropic dispersions and adjustable Fano resonances in reflectance, may facilitate high temperature polariton condensation in variable dimensions. Combining slab PCs and vdWCs in the strong coupling regime allows unprecedented engineering flexibility for exploring novel polariton phenomena and device concepts. Copyright © 2017, The Authors. All rights reserved.

关键词： Phonons

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Thermal stiffening of clamped elastic ribbons

arXiv

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arXiv 2017年

作者： Wan, Duanduan Nelson, David R. Bowick, Mark J. Soft Matter Program and Department of Physics Syracuse University SyracuseNY13244-1130 United States Departments of Physics Molecular and Cellular Biology School of Engineering and Applied Sciences Harvard University CambridgeMA02138 United States Kavli Institute for Theoretical Physics University of California Santa BarbaraCA93106-4030 United States Department of Chemical Engineering University of Michigan Ann ArborMI48109 United States

We use molecular dynamics to study the vibrations of a thermally fluctuating two-dimensional elastic membrane clamped at both ends. We directly extract the eigenmodes from resonant peaks in the frequency domain of the time-dependent height and measure the dependence of the corresponding eigenfrequencies on the microscopic bending rigidity of the membrane, taking care also of the subtle role of thermal contraction in generating a tension when the projected area is fixed. At finite temperatures we show that the effective (macroscopic) bending rigidity tends to a constant as the bare bending rigidity vanishes, consistent with theoretical arguments that the large-scale bending rigidity of the membrane arises from a strong thermal renormalization of the microscopic bending rigidity. Experimental realizations include covalently-bonded two-dimensional atomically thin membranes such as graphene and molybdenum disulfide or soft matter systems such as the spectrin skeleton of red blood cells or diblock copolymers. Copyright © 2017, The Authors. All rights reserved.

关键词： Molybdenum compounds

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Preparation of copper thin film mask by sputtering technique assisted by polymer mask photolithography

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IOP Conference Series: Materials Science and Engineering 2017年第1期213卷

作者： C Pakpum Program in Applied Physics Faculty of Science Maejo University Chiang Mai 50290 Thailand

This research aims to build cheaply homemade DC magnetron sputtering system for deposit metal thin films on substrate by assist of polymer mask photolithography. The metal thin film is able to use as a hard mask for patterning transfer via chemical wet etching or plasma dry etching process and it also can be used as a metal electrode in micrometre scale. Prepared copper thin films will be measured thickness by scanning electron microscope. Crystalline structure of the thin films will be examined by x-ray diffractometer. Elemental analysis contained in the films will be determined by energy dispersive x-ray spectrometer and morphology of the films will be revealed by scanning electron microscope.

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Author Correction: Membrane protein megahertz crystallography at the European XFEL

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Nature communications 2020年第1期11卷 703页

作者： Chris Gisriel Jesse Coe Romain Letrun Oleksandr M Yefanov Cesar Luna-Chavez Natasha E Stander Stella Lisova Valerio Mariani Manuela Kuhn Steve Aplin Thomas D Grant Katerina Dörner Tokushi Sato Austin Echelmeier Jorvani Cruz Villarreal Mark S Hunter Max O Wiedorn Juraj Knoska Victoria Mazalova Shatabdi Roy-Chowdhury Jay-How Yang Alex Jones Richard Bean Johan Bielecki Yoonhee Kim Grant Mills Britta Weinhausen Jose D Meza Nasser Al-Qudami Saša Bajt Gerrit Brehm Sabine Botha Djelloul Boukhelef Sandor Brockhauser Barry D Bruce Matthew A Coleman Cyril Danilevski Erin Discianno Zachary Dobson Hans Fangohr Jose M Martin-Garcia Yaroslav Gevorkov Steffen Hauf Ahmad Hosseinizadeh Friederike Januschek Gihan K Ketawala Christopher Kupitz Luis Maia Maurizio Manetti Marc Messerschmidt Thomas Michelat Jyotirmoy Mondal Abbas Ourmazd Gianpietro Previtali Iosifina Sarrou Silvan Schön Peter Schwander Megan L Shelby Alessandro Silenzi Jolanta Sztuk-Dambietz Janusz Szuba Monica Turcato Thomas A White Krzysztof Wrona Chen Xu Mohamed H Abdellatif James D Zook John C H Spence Henry N Chapman Anton Barty Richard A Kirian Matthias Frank Alexandra Ros Marius Schmidt Raimund Fromme Adrian P Mancuso Petra Fromme Nadia A Zatsepin Biodesign Center for Applied Structural Discovery Arizona State University Tempe AZ 85287-5001 USA. School of Molecular Sciences Arizona State University Tempe AZ 85287-1604 USA. Department of Chemistry Yale University New Haven CT 06520 USA. European XFEL GmbH Holzkoppel 4 22869 Schenefeld Germany. Center for Free-Electron Laser Science Deutsches Elektronen-Synchrotron Notkestrasse 85 22607 Hamburg Germany. Department of Physics Arizona State University Tempe AZ 85287-1504 USA. Hauptman-Woodward Institute 700 Ellicott St Buffalo NY 14203-1102 USA. Department of Structural Biology Jacobs School of Medicine and Biomedical Sciences SUNY University at Buffalo 700 Ellicott St Buffalo NY 14203-1102 USA. Linac Coherent Light Source SLAC National Accelerator Laboratory Menlo Park 94025 CA USA. Department of Physics Universität Hamburg Luruper Chaussee 149 22761 Hamburg Germany. The Hamburg Centre for Ultrafast Imaging Universität Hamburg Luruper Chaussee 149 22761 Hamburg Germany. Deutsches Elektronen-Synchrotron Notkestrasse 85 22607 Hamburg Germany. Institute for X-Ray Physics University of Göttingen 37077 Göttingen Germany. Center Nanoscale Microscopy and Molecular Physiology of the Brain Göttingen Germany. Biological Research Centre Hungarian Academy of Sciences Temesvári krt. 62 Szeged 6726 Hungary. Department of Biochemistry & Cellular and Molecular Biology University of Tennessee at Knoxville Knoxville TN USA 37996. Program in Energy Science and Engineering University of Tennessee at Knoxville Knoxville TN USA 37996. Department of Microbiology University of Tennessee at Knoxville Knoxville TN USA 37996. Lawrence Livermore National Laboratory 7000 East Avenue Livermore CA 94550 USA. University of Southampton University Rd Southampton SO17 1BJ UK. Hamburg University of Technology Vision Systems E-2 Harburger Schloßstraße 20 21079 Hamburg Germany. Department of Physics University of Wisconsin-Milwaukee 3135 N. Maryla

An amendment to this paper has been published and can be accessed via a link at the top of the paper.

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The repertoire of mutational signatures in human cancer (vol 578, pg 94, 2020)

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NATURE 2023年第7948期614卷 E41-E41页

作者： Alexandrov, Ludmil B. Kim, Jaegil Haradhvala, Nicholas J. Huang, Mi Ni Ng, Alvin Wei Tian Wu, Yang Boot, Arnoud Covington, Kyle R. Gordenin, Dmitry A. Bergstrom, Erik N. Islam, S. M. Ashiqul Lopez-Bigas, Nuria Klimczak, Leszek J. McPherson, John R. Morganella, Sandro Sabarinathan, Radhakrishnan Wheeler, David A. Mustonen, Ville Getz, Gad Rozen, Steven G. Stratton, Michael R. Department of Cellular and Molecular Medicine Department of Bioengineering Moores Cancer Center University of California San Diego CA USA Wellcome Sanger Institute Wellcome Genome Campus Hinxton UK Department of Cellular and Molecular Medicine and Department of Bioengineering University of California San Diego La Jolla CA USA UC San Diego Moores Cancer Center San Diego CA USA University of California San Diego San Diego CA USA Broad Institute of MIT and Harvard Cambridge MA USA Center for Cancer Research Massachusetts General Hospital Boston MA USA Massachusetts General Hospital Boston MA USA Department of Pathology Massachusetts General Hospital Boston MA USA Harvard Medical School Boston MA USA Laboratory for Medical Science Mathematics RIKEN Center for Integrative Medical Sciences Yokohama Japan Computational Biology Program Ontario Institute for Cancer Research Toronto ON Canada Programme in Cancer & Stem Cell Biology Duke-NUS Medical School Singapore Singapore Centre for Computational Biology Duke-NUS Medical School Singapore Singapore Programme in Cancer and Stem Cell Biology Duke-NUS Medical School Singapore Singapore Programme in Cancer and Stem Cell Biology Centre for Computational Biology Duke-NUS Medical School Singapore Singapore SingHealth Duke-NUS Institute of Precision Medicine National Heart Centre Singapore Singapore Singapore Cancer Science Institute of Singapore National University of Singapore Singapore Singapore Institute of Molecular and Cell Biology Singapore Singapore Laboratory of Cancer Epigenome Division of Medical Science National Cancer Centre Singapore Singapore Singapore Duke-NUS Medical School Singapore Singapore Human Genome Sequencing Center Baylor College of Medicine Houston TX USA Dan L. Duncan Cancer Center Baylor College of Medicine Houston TX USA Department of Molecular and Human Genetics Baylor College of Medicine Houston TX USA Genome Integrity and Structural Biology Laboratory National Ins

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The Ni isotopic composition of Ryugu reveals a common accretion region for carbonaceous chondrites

arXiv

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arXiv 2024年

作者： Spitzer, Fridolin Kleine, Thorsten Burkhardt, Christoph Hopp, Timo Yokoyama, Tetsuya Abe, Yoshinari Aléon, Jérôme OD. Alexander, Conel M. Amari, Sachiko Amelin, Yuri Bajo, Ken-Ichi Bizzarro, Martin Bouvier, Audrey Carlson, Richard W. Chaussidon, Marc Choi, Byeon-Gak Dauphas, Nicolas Davis, Andrew M. Rocco, Tommaso Di Fujiya, Wataru Fukai, Ryota Gautam, Ikshu Haba, Makiko K. Hibiya, Yuki Hidaka, Hiroshi Homma, Hisashi Hoppe, Peter Huss, Gary R. Ichida, Kiyohiro Iizuka, Tsuyoshi Ireland, Trevor R. Ishikawa, Akira Itoh, Shoichi Kawasaki, Noriyuki Kita, Noriko T. Kitajima, Kouki Komatani, Shintaro Krot, Alexander N. Liu, Ming-Chang Masuda, Yuki Morita, Mayu Moynier, Fréderic Motomura, Kazuko Nakai, Izumi Nagashima, Kazuhide Nguyen, Ann Nittler, Larry Onose, Morihiko Pack, Andreas Park, Changkun Piani, Laurette Qin, Liping Russell, Sara S. Sakamoto, Naoya Schönbächler, Maria Tafla, Lauren Tang, Haolan Terada, Kentaro Terada, Yasuko Usui, Tomohiro Wada, Sohei Wadhwa, Meenakshi Walker, Richard J. Yamashita, Katsuyuki Yin, Qing-Zhu Yoneda, Shigekazu Young, Edward D. Yui, Hiroharu Zhang, Ai-Cheng Nakamura, Tomoki Naraoka, Hiroshi Noguchi, Takaaki Okazaki, Ryuji Sakamoto, Kanako Yabuta, Hikaru Abe, Masanao Miyazaki, Akiko Nakato, Aiko Nishimura, Masahiro Okada, Tatsuaki Yada, Toru Yogata, Kasumi Nakazawa, Satoru Saiki, Takanao Tanaka, Satoshi Terui, Fuyuto Tsuda, Yuichi Watanabe, Sei-Ichiro Yoshikawa, Makoto Tachibana, Shogo Yurimoto, Hisayoshi Max Planck Institute for Solar System Research Justus-von-Liebig-Weg 3 Göttingen37077 Germany Department of Earth and Planetary Sciences Tokyo Institute of Technology Tokyo152-8551 Japan Graduate School of Engineering Materials Science and Engineering Tokyo Denki University Tokyo120-8551 Japan Institut de Minéralogie de Physique des Matériaux et de Cosmochimie Sorbonne Université Museum National d'Histoire Naturelle CNRS UMR 7590 IRD Paris75005 France Earth and Planets Laboratory Carnegie Institution for Science WashingtonDC20015 United States McDonnell Center for the Space Sciences and Physics Department Washington University 35 St. LouisMO63130 United States Geochemical Research Center The University of Tokyo Tokyo113-0033 Japan Guangzhou Institute of Geochemistry Chinese Academy of Sciences GD Guangzhou510640 China Departement of Natural History Sciences Hokkaido University Sapporo001-0021 Japan Centre for Star and Planet Formation Globe Institute University of Copenhagen Copenhagen1350 Denmark Bayerisches Geoinstitut Universität Bayreuth Bayreuth95447 Germany Université Paris Cité Institut de Physique du Globe de Paris CNRS Paris75005 France Department of Earth Science Education Seoul National University Seoul08826 Korea Republic of Department of the Geophysical Sciences Enrico Fermi Institute The University of Chicago 5734 South Ellis Avenue Chicago60637 United States Faculty of Geosciences and Geography University of Göttingen GöttingenD-37077 Germany Faculty of Science Ibaraki University Mito310-8512 Japan ISAS/JSEC JAXA Sagamihara252-5210 Japan Research Center for Advanced Science and Technology The University of Tokyo Tokyo153-8904 Japan Research Institute for Marine Resources Utilization Japan Agency for Marine-Earth Science and Technology Kanagawa237-0061 Japan Departement of Earth and Planetary Sciences Nagoya University Nagoya464-8601 Japan Osaka Application Laboratory SBUWDX Rigaku Corporation Osaka569-1

The isotopic compositions of samples returned from Cb-type asteroid Ryugu and Ivuna-type (CI) chondrites are distinct from other carbonaceous chondrites, which has led to the suggestion that Ryugu/CI chondrites formed in a different region of the accretion disk, possibly around the orbits of Uranus and Neptune. We show that, like for Fe, Ryugu and CI chondrites also have indistinguishable Ni isotope anomalies, which differ from those of other carbonaceous chondrites. We propose that this unique Fe and Ni isotopic composition reflects different accretion efficiencies of small FeNi metal grains among the carbonaceous chondrite parent bodies. The CI chondrites incorporated these grains more efficiently, possibly because they formed at the end of the disk’s lifetime, when planetesimal formation was also triggered by photoevaporation of the disk. Isotopic variations among carbonaceous chondrites may thus reflect fractionation of distinct dust components from a common reservoir, implying CI chondrites/Ryugu may have formed in the same region of the accretion disk as other carbonaceous chondrites. © 2024, CC BY.

关键词： Nickel

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30-3: Deciphering ELA via Transient Reflectance Analysis

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SID Symposium Digest of Technical Papers 2017年第1期48卷

作者： Vernon K. Wong Miao Yu Wenkai Pan Ruobing Song Akhilesh K. Suresh Insung Choi James S. Im Program in Materials Science and Engineering Department of Applied Physics and Applied Mathematics Columbia University New York NY United States

We have experimentally investigated excimer-laser-induced melting of ELA-prepared polycrystalline Si films using in situ transient reflectance and transmission analysis. The results clearly reveal that melting can proceed in a predominantly 2-D manner for these thin and small-columnar-grained polycrystalline Si films. Based on considering the presently and previously obtained experimental results, as well as considering the thermal, thermodynamic, and kinetic aspects of the melting-transition-relevant details, we present a model that consists of (1) the prompt initiation of melting taking place at grain boundaries and junctions, and (2) the melting proceeding laterally into the transiently superheated interior of the grains. We briefly discuss how the present model can account for the evolution of columnar-grained polycrystalline Si films observed during ELA processing of the films.

关键词： Excimer-laser annealing laser crystallization materials processing phase transformations

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P-184: Numerical Analysis of QCW-Laser-Based Spot-Beam Crystallization of Si Films

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SID Symposium Digest of Technical Papers 2017年第1期48卷

作者： Wenkai Pan Ruobing Song Akhilesh K. Suresh Vernon K. Wong Miao Yu Insung Choi James S. Im Program in Materials Science and Engineering Department of Applied Physics and Applied Mathematics Columbia University New York NY United States

We are in the process of developing a new laser annealing method referred to as Spot-Beam Crystallization (SBC). The SBC method, which is potentially well suited for manufacturing advanced ultra-high-resolution AMOLED displays, is most effectively implemented using ultra-high-frequency quasi-continuous-wave (QCW) pulsed lasers. Conceptually and physically, this QCW-laser-based SBC (Q SBC) approach builds on a thermally additive utilization of multiple short-lived ultra-high-frequency pulses, achieved via overlapped scanning of a small spot beam to incrementally and gradually heat and melt the beam-irradiated region. Using an updated version of a previously developed numerical program, we have carried out a simulation-based investigation to quantitatively examine and evaluate the basic tenets of the approach relevant specifically to partial-melting-based “ELA-like” crystallization of small-columnar-grained polycrystalline Si films using the Q-SBC method. The results from the effort to date as reported in this paper (1) largely confirm and validate the viability of the Q-SBC approach, and (2) suggest some specific directions for optimal development of the Q-SBC equipment and process.

关键词： Low-temperature polycrystalline Si Melting-crystallization Spot-beam Crystallization AMOLED

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Hybrid solar cells constructed of macroporous n-type GaP coated with PEDOT:PSS

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Chinese Chemical Letters 2015年第4期26卷 469-473页

作者： Zhijie Wang Elizabeth S.Brown Stephen Maldonado Department of Chemistry University of Michigan Program in Applied Physics University of Michigan

Hybrid organic-inorganic solar cell devices were fabricated utilizing macroporous n-type GaP and poly（3,4-ethylenedioxythiophene）：poly（4-styrene sulfonate）（PEDOT：PSS）. The high-aspect ratio structures of the macroporous GaP resulted in higher photocurrent and external quantum yield as a function of wavelength. Photocurrent-voltage measurements as a function of light intensity revealed information on the dependence of short-circuit current （Jsc） and open-circuit voltage （Voc） on light intensity. Under 1.0 Sun illumination, hybrid macroporous GaPJPEDOT：PSS devices showed Jsc of 2.34 mA cm 2, Voc of 0.95 V, fill factor of 0.54, and overall efficiency of 1.21%. The extent of the influence of dopant density of GaP on hybrid device performance was probed with current density-voltage measurements. The addition of a gold nanoparticle coating on macroporous GaP prior to PEDOT：PSS coating showed increased device performance, with overall efficiency of 1.81%. Gold-modified planar GaPJPEDOT：PSS showed decreased Jsc and Voc values and lower external quantum yield over all wavelengths,

关键词： Gallium phosphideOrganic-inorganic solar cellMacroporous

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