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Front Cover: Catalyst-free growth of InN nanorods by metal-organic chemical vapor deposition (Phys. Status Solidi A 1/2012)

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physica status solidi (a) 2011年第1期209卷

作者： Min Hwa Kim Dae Young Moon Jinsub Park Yasushi Nanishi Gyu-Chul Yi Euijoon Yoon Hybrid Materials Program (WCU) Department of Materials Science and Engineering Seoul National University Seoul 151-744 Korea Department of Electronic Engineering Hanyang University Seoul 133-791 Korea Department of Photonics Ritsumeikan University Shiga 525-8577 Japan National Creative Research Initiative Center for Semiconductor Nanorods Department of Physics and Astronomy Seoul National University Seoul 151-747 Korea Euijoon Yoon Phone: +82 2 880 2651 Fax: +82 2 6008 3712 Department of Nano Science and Technology Graduate School of Convergence Science and Technology Seoul National University Suwon 443-270 Korea Energy Semiconductor Research Center Advanced Institute of Convergence Technology Seoul National University Suwon 443-270 Korea Gyu-Chul Yi Phone: +82 2 880 7169 Fax: +82 2 884 3002

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BOTTOM BOUNCE ARRAY SONAR SUBMARINE (BBASS)

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NAVAL ENGINEERS JOURNAL 1989年第5期101卷 59-72页

作者： JACKSON, HA NEEDHAM, WD SIGMAN, DE USN (RET.) Capt. Harry A. Jackson USN (Ret.) is a graduate of the University of Michigan in naval architecture and marine engineering and completed the General Electric Company's 3-year advanced engineering course in nuclear engineering. He has been an independent consulting engineer and participated in projects involving deep submergence waste disposal water purification and submarine design both commercial and government. Cdr. William D. Needham USN is currently assigned as the repair officer of USS Hunley (AS-31) in Norfolk Virginia. He received a regular commission through NROTC at Duke University where he graduated magna cum laude in mechanical engineering. Selected for the Nuclear Power Program he served as a division officer on the USS Grayling (SSN-646) as the production training assistant at the MARE Prototype Reactor in New York and as blue crew engineer of the USS Nathan Hale (SSBN-623) where he completed the requirements to be designated qualified for command of submarines. Following line transfer to the EDO community in 1981 he completed a tour as nuclear repair officer (Code 310) at Norfolk Naval Shipyard and earned master of science in materials science and ocean engineer's degrees at MIT. His awards include the Meritorius Service Medal Navy Commendation Medal Navy Achievement Medal Spear Foundation Award and the Vice Admiral C.R. Bryan Award. Cdr. Needham also holds a master of arts degree in business management from Central Michigan University. Capt. Jackson was technical director of Scorpion Search Phase II. The on-site investigation included descending over 12 000 feet to the bottom of the ocean. He was also supervisor of one of the Navy's largest peacetime shipbuilding and repair programs. His responsibilities included supervision of design production and contract administration. Capt. Jackson was third from the top in managaement of a major shipyard and responsible for design material procurement work order and financial control of two major surface ship prototypes as well a

Anticipated technological advances in the quieting of potential adversary submarines mandate the use of increasingly effective detection systems for U.S. ASW forces. Based on the assumptions that sonar will continue to be the primary means of detection and that the effectiveness of each individual sonar element will not change markedly, one must increase the projected area of the sonar array to improve its capability. The primary SSN mission of anti-submarine warfare will hence require increasing the hull area devoted to the primary sonar detection system. A revolutionary hull form is proposed that maximizes the area available for this purpose. The advantages and disadvantages of this hull form are discussed and feasibility study level design parameters and arrangements presented.

关键词： Submarines

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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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A Ruthenium(III)–Oxyl Complex Bearing Strong Radical Character

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Angewandte Chemie 2016年第45期128卷

作者： Yoshihiro Shimoyama Tomoya Ishizuka Hiroaki Kotani Yoshihito Shiota Kazunari Yoshizawa Kaoru Mieda Takashi Ogura Toshihiro Okajima Shunsuke Nozawa Takahiko Kojima Department of Chemistry Faculty of Pure and Applied Sciences University of Tsukuba 1-1-1 Tennoudai Tsukuba Ibaraki 305-8571 Japan Institute for Materials Chemistry and Engineering Kyushu University Motooka Nishi-Ku Fukuoka 819-0395 Japan Picobiology Institute Graduate School of Life Science University of Hyogo RSC-UH Leading Program Center 1-1-1 Kouto Sayo-cho Sayo-gun Hyogo 679-5148 Japan Kyushu Synchrotron Light Research Center 8-7 Yayoigaoka Tosu Saga 841-0005 Japan Photon Factory Institute of Materials Structure Science High Energy Accelerator Research Organization (KEK) 1-1 Oho Tsukuba Ibaraki 305-0801 Japan

Proton‐coupled electron‐transfer oxidation of a Ru II −OH 2 complex, having an N‐heterocyclic carbene ligand, gives a Ru III −O . species, which has an electronically equivalent structure of the Ru IV =O species, in an acidic aqueous solution. The Ru III −O . complex was characterized by spectroscopic methods and DFT calculations. The oxidation state of the Ru center was shown to be close to +3; the Ru−O bond showed a lower‐energy Raman scattering at 732 cm −1 and the Ru−O bond length was estimated to be 1.77(1) Å. The Ru III −O . complex exhibits high reactivity in substrate oxidation under catalytic conditions; particularly, benzaldehyde and the derivatives are oxidized to the corresponding benzoic acid through C−H abstraction from the formyl group by the Ru III −O . complex bearing a strong radical character as the active species.

关键词： Katalyse N-heterocyclische Carbene Oxidationen Oxylradikale Ruthenium

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Front Cover: Bioderived Molecular Electrodes for Next-Generation Energy-Storage materials (ChemSusChem 9/2020)

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ChemSusChem 2020年第9期13卷 2101-2101页

作者： Mikhail Miroshnikov Kiran Mahankali Dr. Naresh Kumar Thangavel Dr. Sitakanta Satapathy Dr. Leela Mohana Reddy Arava Dr. Pulickel M. Ajayan Dr. George John Department of Chemistry and Biochemistry Center for Discovery and Innovation The City College of New York 85 St. Nicholas Terrace New York NY 10031 USA The PhD Program in Chemistry The Graduate Center of the City University of New York 365 5th Ave New York NY 10016 USA Department of Mechanical Engineering Wayne State University 5050 Anthony Wayne Dr. Detroit MI 48202 USA Department of Materials Science and NanoEngineering Rice University 6100 Main Street Houston TX 77005 USA

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Highly Recyclable and Tough Elastic Vitrimers from a Defined Polydimethylsiloxane Network

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Angewandte Chemie 2023年第47期135卷

作者： Dr. Jiancheng Luo Dr. Xiao Zhao Hao Ju Dr. Xiangjun Chen Dr. Sheng Zhao Dr. Zoriana Demchuk Dr. Bingrui Li Dr. Vera Bocharova Dr. Jan-Michael Y. Carrillo Dr. Jong K. Keum Prof. Sheng Xu Prof. Alexei P. Sokolov Dr. Jiayao Chen Prof. Peng-Fei Cao Chemical Sciences Division Oak Ridge National Laboratory Oak Ridge TN-37830 USA State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology Beijing 100029 China Materials Science and Engineering Program University of California San Diego La Jolla CA-92093 USA Department of Chemistry University of Tennessee Knoxville TN-37996 USA The Bredesen Center for Interdisciplinary Research and Graduate Education University of Tennessee Knoxville TN-37996 USA Center for Materials Sciences Oak Ridge National Laboratory Oak Ridge TN-37830 USA Neutron Scattering Division Oak Ridge National Laboratory Oak Ridge TN-37830 USA

Despite intensive research on sustainable elastomers, achieving elastic vitrimers with significantly improved mechanical properties and recyclability remains a scientific challenge. Herein, inspired by the classical elasticity theory, we present a design principle for ultra-tough and highly recyclable elastic vitrimers with a defined network constructed by chemically crosslinking the pre-synthesized disulfide-containing polydimethylsiloxane (PDMS) chains with tetra-arm polyethylene glycol (PEG). The defined network is achieved by the reduced dangling short chains and the relatively uniform molecular weight of network strands. Such elastic vitrimers with the defined network, i.e., PDMS-disulfide-D, exhibit significantly improved mechanical performance than random analogous, previously reported PDMS vitrimers, and even commercial silicone-based thermosets. Moreover, unlike the vitrimers with random network that show obvious loss in mechanical properties after recycling, those with the defined network enable excellent thermal recyclability. The PDMS-disulfide-D also deliver comparable electrochemical signals if utilized as substrates for electromyography sensors after the recycling. The multiple relaxation processes are revealed via a unique physical approach. Multiple techniques are also applied to unravel the microscopic mechanism of the excellent mechanical performance and recyclability of such defined network.

关键词： Defined Network Polydimethylsiloxane Recyclable Polymer Tough Elastomer Vitrimers

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Demonstration of higher-order topological States in photonic kagome lattice with next-nearest-neighbour coupling

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AIP Conference Proceedings 2020年第1期2300卷

作者： D. Zhirihin M. Li M. Gorlach X. Ni D. Filonov A. Slobozhanyuk A. Alu A. B. Khanikaev 1Department of Electrical Engineering Grove School of Engineering 160 Covent Avenue City College of New York 10031 NY USA 2Department of Physics and Engineering ITMO University 49 Kronverksky Pr. 197101 St. Petersburg Russia 3Physics Program Graduate Center of the City University of New York 365 5th Avenue 10016 New York NY USA 4Center for Photonics and 2D Materials Moscow Institute of Physics and Technology Dolgoprudny 141700 Russia 5Photonics Initiative Advanced Science Research Center City University of New York 10031 New York NY USA

In this paper, we investigate topological states in a two-dimensional distorted Kagome lattice with next- nearest-neighbour (NNN) coupling. We show that introducing NNN coupling leads to the emergence of a new type of higher-order corner states in a non-trivial topological phase. Using near-field scanning technique, we verify our theoretical predictions in the microwave frequency range and demonstrate field profiles for both conventional and new type of corner states. The experimental results are in perfect agreement with numerical simulations of finite structure.

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Stimuli-responsive photonic actuators for integrated biomimetic and intelligent systems

Responsive Materials

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Responsive materials 2023年第1期1卷

作者： Jingjing Gao Yuqi Tang Daniele Martella Jinbao Guo Diederik S. Wiersma Quan Li Key Laboratory of Carbon Fibers and Functional Polymers Ministry of Education Beijing University of Chemical Technology Beijing China College of Materials Science and Engineering Beijing University of Chemical Technology Beijing China Contribution: Writing - original draft (lead) Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing China Contribution: Writing - original draft (supporting) European Laboratory for Non-Linear Spectroscopy Sesto Fiorentino Italy Istituto Nazionale di Ricerca Metrologica (INRiM) Turin Italy Contribution: Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Conceptualization (lead) Project administration (lead) Writing - review & editing (lead) Department of Physics and Astronomy University of Florence Sesto Fiorentino Italy Jinbao Guo Diederik S. Wiersma and Quan Li. Contribution: Writing - review & editing (lead) Materials Science Graduate Program Kent State University Kent Ohio USA Contribution: Conceptualization (equal) Project administration (equal) Resources (lead) Supervision (lead) Writing - review & editing (lead)

Photonic actuators, serving as an emerging kind of intelligent stimuli-responsive material, can exhibit the abilities to change their structural colors/fluorescence and shapes under specific external stimuli, which have demonstrated essential applications in the fields of intelligent soft robotics, sensors, bionics, information storage, anti-counterfeiting, and energy harvesting. In this review, we reported the state-of-the-art research progress of stimuli-responsive photonic actuators classified on the basis of the material type and focusing on the actuation mechanisms, design principles, and processing techniques. We also broadly summarized the relative applications of photonic actuators in bionics, intelligent robots, sensors, and so on. Finally, a vision for the challenges in the area and future promising directions of stimuli-responsive photonic actuators is presented.

关键词： actuator fluorescence liquid crystal elastomer photonic crystal stimuli-responsive material

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Surface modification of yttria-stabilized tetragonal zirconia with different glass based liners

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Dental materials 2016年 32卷 e95-e96页

作者： D. Silva-Herzog Rivera D. Masuoka-Ito L.O. Sanchez-Vargas J.L. Menchaca-Arredondo A. Aragón-Piña B.I. Cerda-Cristerna Institutional Doctoral Program of Engineering and Materials Science Universidad Autónoma De San Luis Potosí México Mexico Dentistry Department Universidad Autónoma De Aguascalientes México Mexico Faculty of Physics and Mathematics Universidad Autónoma De Nuevo León México Mexico Research Center and Post-Graduate Studies Universidad Autónoma De San Luis Potosí México Mexico Faculty of Dentistry Río Blanco Universidad Veracruzana-Región Córdoba-Orizaba México Mexico

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Supramolecular dissipative self-assembly systems: Approaches and applications

Responsive Materials

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Responsive materials 2023年第2期1卷

作者： Xiao-Fang Hou Xiao Chen Jia-Hao Wei Yang Xu Xu-Man Chen Quan Li Institute of Advanced Materials and School of Chemistry and Chemical Engineering Southeast University Nanjing China Contribution: Writing - original draft (lead) Writing - review & editing (equal) Contribution: Conceptualization (supporting) Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Writing - original draft (supporting) Writing - review & editing (supporting) Contribution: Conceptualization (lead) Resources (equal) Supervision (lead) Writing - original draft (equal) Writing - review & editing (equal) Materials Science Graduate Program Kent State University Kent OH USA Xu-Man Chen and Quan Li. Contribution: Conceptualization (lead) Resources (lead) Supervision (lead) Writing - original draft (supporting) Writing - review & editing (lead)

Dissipative self-assembly (DSA) system requires a continuous supply of fuels to maintain the far-from-equilibrium assembled state. Living organisms exist and operate far from the thermodynamic equilibrium by continuous consumption of energy taken from the surroundings, so how to realize the construction of the artificial DSA system has attracted much attention by researchers all over the world. Owing to dynamic controllable noncovalent interactions, artificial supramolecular DSA systems have achieved higher functions fueled by various types of energy, such as chemical fuels, light, electric energy, acoustic energy, and mechanical energy. Upon the input of external fuels, nonactive precursors can be activated to form building blocks at higher energy levels and then self-assemble into transient supramolecular structures. As the proceeding of deactivation reaction, the building blocks with higher energy level dissipate back to the initial precursors, resulting in the disassembly process, to complete a full cycle. In this review, we summarize the recent advances of artificial supramolecular DSA systems on its construction strategies and energy-fueled regulation approaches. The applications of supramolecular DSA systems in luminescence modulating, information encryption, self-regulating gels, drug delivery, and catalysis are also discussed. We hope that this review article will facilitate further understanding and development of DSA systems.

关键词： dissipative self-assembly dynamic system out-of-equilibrium system stimuli responsive material supramolecular self-assembly

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