Academic literature on the topic '3D crystal structure'

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Journal articles on the topic "3D crystal structure"

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Jang, Kiyoung, Hyun Gi Kim, Sandi Hnit San Hlaing, MinSoung Kang, Hui-Woog Choe, and Yong Ju Kim. "A Short Review on Cryoprotectants for 3D Protein Structure Analysis." Crystals 12, no. 2 (2022): 138. http://dx.doi.org/10.3390/cryst12020138.

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The three-dimensional structure of protein is determined by analyzing diffraction data collected using X-ray beams. However, X-ray beam can damage protein crystals during data collection, lowering the quality of the crystal data. A way to prevent such damage is by treating protein crystals with cryoprotectants. The cryoprotectant stabilizes the protein crystal and prevents lowering the quality of the diffraction data. Many kinds of cryoprotectants are commercially available, and various treatment methods have also been reported. However, incorrect selection or treatment of such cryoprotectants
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Lanza, Arianna, Eleonora Margheritis, Enrico Mugnaioli, Valentina Cappello, Gianpiero Garau, and Mauro Gemmi. "Nanobeam precession-assisted 3D electron diffraction reveals a new polymorph of hen egg-white lysozyme." IUCrJ 6, no. 2 (2019): 178–88. http://dx.doi.org/10.1107/s2052252518017657.

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Recent advances in 3D electron diffraction have allowed the structure determination of several model proteins from submicrometric crystals, the unit-cell parameters and structures of which could be immediately validated by known models previously obtained by X-ray crystallography. Here, the first new protein structure determined by 3D electron diffraction data is presented: a previously unobserved polymorph of hen egg-white lysozyme. This form, with unit-cell parameters a = 31.9, b = 54.4, c = 71.8 Å, β = 98.8°, grows as needle-shaped submicrometric crystals simply by vapor diffusion starting
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Yang, Quanxin, Xin Zhang, Hongliang Liu, et al. "Dynamic relaxation process of a 3D super crystal structure in a Cu:KTN crystal." Chinese Optics Letters 18, no. 2 (2020): 021901. http://dx.doi.org/10.3788/col202018.021901.

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Ren, Lin, Yan Li Shi, Xue Hao, and Run Lan Tian. "Experimental System for the Micro-Nanofabrication of Three-Dimensional Structures by Femtosecond Laser Two-Photon Absorption." Advanced Materials Research 760-762 (September 2013): 746–49. http://dx.doi.org/10.4028/www.scientific.net/amr.760-762.746.

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Fundamentals of two-photon photopolymerization have been introduced and a 3D femtosecond laser micro-nanofabrication system has been built. In this paper, 3D CAD data model based on femtosecond laser micro-nanofabrication system have been also discussed. The 3D various sphere-rod photonic crystal structure mimicking real atom structures in electronic crystals have been fabricated.
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Yang, Taimin, Steve Waitschat, Andrew Kentaro Inge, Norbert Stock, Xiaodong Zou, and Hongyi Xu. "A Comparison of Structure Determination of Small Organic Molecules by 3D Electron Diffraction at Cryogenic and Room Temperature." Symmetry 13, no. 11 (2021): 2131. http://dx.doi.org/10.3390/sym13112131.

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3D electron diffraction (3D ED), also known as micro-crystal electron diffraction (MicroED), is a rapid, accurate, and robust method for structure determination of submicron-sized crystals. 3D ED has mainly been applied in material science until 2013, when MicroED was developed for studying macromolecular crystals. MicroED was considered as a cryo-electron microscopy method, as MicroED data collection is usually carried out in cryogenic conditions. As a result, some researchers may consider that 3D ED/MicroED data collection on crystals of small organic molecules can only be performed in cryog
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Su, Jie, Yue-Biao Zhang, Yifeng Yun, et al. "The First Covalent Organic Framework solved by Rotation Electron Diffraction." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C191. http://dx.doi.org/10.1107/s2053273314098088.

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Covalent organic frameworks (COFs) represent an exciting new type of porous organic materials, which are constructed with organic building units via strong covalent bonds.[1] The structure determination of COFs is challenging, due to the difficulty in growing sufficiently large crystals suitable for single crystal X-ray diffraction, and low resolution and peak broadening for powder X-ray diffraction. Crystal structures of COFs are typically determined by modelling building with the aid of geometry principles in reticular chemistry and powder X-ray diffraction data. Here, we report the single-c
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Kaminsky, Werner, Trevor Snyder, and Peter Moeck. "3D printing of crystallographic models and open access databases." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1278. http://dx.doi.org/10.1107/s205327331408721x.

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Although introduced 30 years ago, cost and performance improvements have only recently made 3D printing affordable. The industry wide input file format for 3D printers incorporates explicit mesh - `STL' data. Molecules and crystal structures, when including symmetry, crystal morphologies, or crystal defects are encoded in the parametrical `CIF' syntax. Free software for converting directly CIF data to STL files has just been developed, available online [1]. First examples of printed 3D models from STL-files created with these programs include molecules of sucrose, herapathite [2a], caffeine, h
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Zhang, Chenxi, Xuemin Chen, Bo Liu, Jiachen Zang, Tuo Zhang, and Guanghua Zhao. "Preparation and Unique Three-Dimensional Self-Assembly Property of Starfish Ferritin." Foods 12, no. 21 (2023): 3903. http://dx.doi.org/10.3390/foods12213903.

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The structure and assembly properties of ferritin derived from aquatic products remain to be explored. Constructing diverse three-dimensional (3D) protein architectures with the same building blocks has important implications for nutrient delivery, medicine and materials science. Herein, ferritin from Asterias forbesii (AfFer) was prepared, and its crystal structure was resolved at 1.91 Å for the first time. Notably, different from the crystal structure of other reported ferritin, AfFer exhibited a BCT lattice arrangement in its crystals. Bioinspired by the crystal structure of AfFer, we descr
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Chen, S., D. Li, M. Wang, and D. Wei. "Fabrication of a point defect photonic crystal based on diamond structure with a cavity and its microwave properties." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 225, no. 11 (2011): 2071–77. http://dx.doi.org/10.1177/0954405411398760.

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This paper presents a novel fabrication method for three-dimensional (3D) ceramic point defect photonic crystals. The 3D defect photonic crystal, which possesses an air cavity, has been designed by cutting a rectangular shape (3.5 mm × 3.5 mm × 7 mm) in the centre of a photonic crystal with a diamond lattice structure model (50 mm × 30 mm × 20 mm) with a lattice constant of 7 mm. Stereolithography (SL) technology was applied to fabricate resin moulds with an inverse-diamond structure incorporating the defect, and high solid content aqueous ceramic slurry was prepared and injected into the moul
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Nicolopoulos, Stavros, Mauro Gemmi, Alexander Eggeman, Paul Midgley, and Athanassios Galanis. "TEM Random & Ultra-fast Precession ED Tomography for analysis of nm crystals." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C371. http://dx.doi.org/10.1107/s2053273314096284.

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Since the invention of Precession Electron Diffraction (PED) in Transmission Electron Microscopy (TEM) by Vincent & Midgley [1] in 1994 and mainly after the introduction of dedicated PED devices to different TEM, the structure of various nano-sized crystals have been solved by Electron Crystalography. The most popular technique that was recently developed based on beam precession is the 3D Precession Diffraction Tomography (PEDT) [2]. A series of ED patterns are collected every 10while the sample is tilted around the goniometer axis. By the automatic measurement of ED intensities (ADT 3D s
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Dissertations / Theses on the topic "3D crystal structure"

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Wennman, Anneli. "The structural basis for the catalytic specificity of manganese lipoxygenases : 3D structure analysis of the lipoxygenase of Magnaporthe oryzae." Doctoral thesis, Uppsala universitet, Institutionen för farmaceutisk biovetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-262762.

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Lipoxygenases (LOX) catalyze regio- and stereospecific oxygenation of polyunsaturated fatty acids to hydroperoxides. These hydroperoxides are further metabolized to leukotrienes and lipoxins in mammals, and are involved in asthma and inflammation. LOX of animals and plants contain iron as catalytic metal (FeLOX). Filamentous fungi use both FeLOX, and manganese containing LOX (MnLOX). The role of LOX in fungi is still not known. This thesis focuses on expression of novel MnLOX, analyses of their reaction mechanism and products by HPLC-MS/MS, protein crystallization and analysis of the first MnL
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Markevičius, Andrius. "3D fotoninio kristalo užpildyto nematiniu skystuoju kristalu spektroskopiniai tyrimai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2010. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2010~D_20100708_091750-48466.

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Eksperimentai buvo atliekami su bandinėliais gautais iš Madrido, Maskvos ir St.Peterburgo, tai yra su fotoniniais kristalais. Darbe buvo nagrinėta fotoninio kristalo opalo struktūrą ir optines savybes draustinės stop juostos srityje bei defektų valdymo būdai, keičiant elektrinį lauką. Nagrinėjamas elektrinio lauko poveikis defektams, stop juostai. Nustatyta, kad elektriniame lauke susikuria defektai, kuriuos galima valdyti nuo 0V iki 7V įtampos intervale. Išmatuoti defektinės modos perjungimo laikai kurie sieka 200 s, tai 10 kart greičiau nei stop juostos.<br>We did structural and spectroscop
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Hossain, A. "Synthesis, crystal structure and properties of complex oxides with the perovskite structure based on neodymium, alkaline earth and 3d-transition metals : dissertation for the degree of candidate of chemical sciences : 02.00.04." Thesis, б. и, 2019. http://hdl.handle.net/10995/82032.

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Hung, Jenny. "3D spherical layer photonic band-gap structures in dichromate gelatin /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?PHYS%202008%20HUNG.

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Sylvestre-Gonon, Elodie. "Caractérisation biochimique et structurale de quelques glutathion transférases de la classe Tau d'arabette (Arabidopsis thaliana) et de peuplier (Populus trichocarpa)." Electronic Thesis or Diss., Université de Lorraine, 2020. http://www.theses.fr/2020LORR0253.

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Les glutathion transférases (GSTs) constituent une famille multigénique d’enzymes ubiquitaires impliquées notamment dans la détoxication des xénobiotiques et le métabolisme secondaire. Les GSTs canoniques sont constituées d’un domaine N-terminal de type thiorédoxine et d’un domaine C-terminal formé d’hélices α. Chez les plantes terrestres, les GSTs peuvent être regroupées en 14 classes et selon le résidu conservé au sein de leur motif catalytique en GSTs à cystéine (Cys-GSTs) ou à sérine (Ser-GSTs). Les Ser-GSTs présentent des activités de réduction des peroxydes et/ou de conjugaison de glutat
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Cohoon, Gregory A. "Fabrication, Characterization, and Application of Microresonators and Resonant Structures." Diss., The University of Arizona, 2016. http://hdl.handle.net/10150/595953.

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Optical resonators are structures that allow light to circulate and store energy for a duration of time. This work primarily looks at the fabrication, characterization, and application of whispering gallery mode microresonators and the analysis of organic photonic crystal-like structures and simulation of their resonant effects. Whispering gallery mode (WGM) microresonators are a class of cylindrically symmetric optical resonator which light circulates around the equator of the structure. These resonators are named after acoustic whispering galleries, where a whisper can be heard anywhere alon
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Do, Mai Trang. "Fabrication of submicrometer 3D structures by one-photon absorption direct laser writing and applications." Thesis, Cachan, Ecole normale supérieure, 2015. http://www.theses.fr/2015DENS0001/document.

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Ce travail porte sur l’étude d’une nouvelle technique de microscopie basée sur le phénomène d’absorption linéaire ultra-faible (LOPA) de matériaux photosensibles pour la fabrication de structures submicrométriques à deux et à trois dimensions (2D, 3D). Premièrement, nous avons étudié théoriquement la distribution de l'intensité lumineuse dans la région focale d’un objectif de microscope de grande ouverture numérique en fonction des différentes conditions de travail, telles que la propagation de la lumière dans un milieu absorbant avec variation d'indice de refraction. Nous avons démontré que l
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Kulkarni, Aditya. "Simulation of three dimensional current spreading in photonic crystal VCSEL structures." Thesis, Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/28254.

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SRIDHAR, SUPRIYA LALAPET. "Design, Simulation and Physical Characterization of 3D Photonic Crystal Woodpile Structures for High Efficacy Incandescent Thermal Emission." University of Cincinnati / OhioLINK, 2008. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218030876.

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Gaillot, Davy Paul. "Optical Properties of Complex Periodic Media Structurally Modified by Atomic Layer Deposition." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14635.

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In the late eighties, a new class of materials, known as photonic crystals (PCs), emerged enabling the propagation and generation of light to be potentially manipulated with unprecedented control. PCs consist of a periodic modulation of dielectric constant in one, two, or three dimensions, which can result in the formation of directional or omni-directional photonic band gaps (PBGs), spectral regions where light propagation is forbidden, and more remarkably, novel dispersion characteristics. Since PC properties scale with the dimension of the wavelength of interest, significant technological c
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Book chapters on the topic "3D crystal structure"

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Vegas, Angel. "FeLi[PO4]: Dissection of a Crystal Structure." In Inorganic 3D Structures. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/430_2010_35.

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Hieu, Do H. M., Do Q. Duyen, Nguyen P. Tai, Nguyen V. Thang, Ngo C. Vinh, and Nguyen Q. Hung. "Crystal Structure and Mechanical Properties of 3D Printing Parts Using Bound Powder Deposition Method." In Lecture Notes in Mechanical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-3239-6_4.

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Blatov, Vladislav A. "Crystal Structures of Inorganic Oxoacid Salts Perceived as Cation Arrays: A Periodic-Graph Approach." In Inorganic 3D Structures. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/430_2010_34.

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Strickland, Joel, Bogdan Nenchev, Karl Tassenberg, Samuel Perry, Gareth Sheppard, and Hongbiao Dong. "Applying Stereological Characterisation to the Solidification Structure of Single Crystal Alloys to Deduce the 3D Macroscopic Solid/Liquid Interface Shape." In Characterization of Minerals, Metals, and Materials 2021. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-65493-1_2.

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Sukhoivanov, Igor A., and Igor V. Guryev. "Band Structure Computation of 2D and 3D Photonic Crystals." In Photonic Crystals. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-642-02646-1_5.

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Gordienko, Yuri, Pavel Kuznetsov, Elena Zasimchuk, Rimma Gontareva, Jürgen Schreiber, and Vladimir Karbovsky. "Multiscale 2D Rectangular and 3D Rhombic Gratings Created by Self-Organization of Crystal Structure Defects under Constrained Cyclic Deformation and Fracture." In Materials Science Forum. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-469-3.421.

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Murr, Lawrence E. "Volume Defects: 3D Imperfections in Crystals." In Handbook of Materials Structures, Properties, Processing and Performance. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-01815-7_17.

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Murr, Lawrence E. "Volume Defects: 3D Imperfections in Crystals." In Handbook of Materials Structures, Properties, Processing and Performance. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-01905-5_17-1.

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Burger, S., R. Klose, A. Schädle, F. Schmidt, and L. Zschiedrich. "Adaptive FEM Solver for the Computation of Electromagnetic Eigenmodes in 3D Photonic Crystal Structures." In Scientific Computing in Electrical Engineering. Springer Berlin Heidelberg, 2006. http://dx.doi.org/10.1007/978-3-540-32862-9_24.

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Zhou, Ming, Chuan Peng Pan, L. P. Liu, R. Yuan, R. F. Ren, and Lan Cai. "Finite Difference Time Domain Method for Computing the Band-Structure of 3D Photonic Crystals." In Solid State Phenomena. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/3-908451-30-2.599.

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Conference papers on the topic "3D crystal structure"

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Goto, Syun, Tsuyoshi Sugimoto, Makoto Nanko, and Natsumi Ideta. "Anisotropy and Metal Structure Characteristics of 3D Metal Printer Materials Due to Carburization." In IFHTSE 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.ifhtse2024p0016.

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Abstract Metal additive manufacturing is a molding method with a high degree of freedom because it can be created from high-strength materials using by CAD, etc. In recent years, there is a demand for metal additive manufacturing due to the demand for more complex mechanisms and shape in industrial products. However, the mechanical properties of metal additive manufacturing materials as metallic materials are not clear compared to metallic materials by melting method. In this study, two types of metal additive manufacturing (AM) materials with different lamination directions are carburized and
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Galliopoulou, Eirini C., Christopher Jones, Lawrence Coghlan, et al. "Creep Cavitation Imaging and Analysis in 9%Cr-1%Mo P91 Steels." In AM-EPRI 2024. ASM International, 2024. http://dx.doi.org/10.31399/asm.cp.am-epri-2024p0219.

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Abstract The current research adopts a novel approach by integrating correlative microscopy and machine learning in order to study creep cavitation in an ex-service 9%Cr 1%Mo Grade 91 ferritic steel. This method allows for a detailed investigation of the early stages of the creep life, enabling identification of features most prone to damage such as precipitates and the ferritic crystal structure. The microscopy techniques encompass Scanning Electron Microscopy (SEM) imaging and Electron Back-scattered Diffraction (EBSD) imaging, providing insights into the two-dimensional distribution of cavi
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Wang, Panxiao, Yidong Huang, Wei Zhang, and Jiangde Peng. "Quasi-3D photonic crystal waveguide with matching layer structure." In Asia-Pacific Optical Communications, edited by Shinji Tsuji, Jens Buus, and Yi Luo. SPIE, 2005. http://dx.doi.org/10.1117/12.636389.

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Krivosheina, Marina, Sergey Kobenko, Elena Tuch, and Maria Kozlova. "Modeling of elastic and plastic waves for HCP single crystals in a 3D formulation based on zinc single crystal." In ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2016: Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2016. Author(s), 2016. http://dx.doi.org/10.1063/1.4966411.

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Notomi, M., T. Tamamura, Y. Ohtera, O. Hanaizumi, and S. Kawakami. "Direct Experimental Visualization of Photonic Band Structure of 3D Photonic Crystal." In Quantum Optoelectronics. OSA, 1999. http://dx.doi.org/10.1364/qo.1999.qma3.

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Chang, Yong, and Zi-sheng Wang. "Research on 3D Visualization of Crystal Molecular Structure Based on Augmented Reality." In 2008 International Conference on Computer Science and Software Engineering. IEEE, 2008. http://dx.doi.org/10.1109/csse.2008.503.

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Saif, Safna, Sree Sanker S S, Karthika Sankar, et al. "Emission studies on carbon dot embedded self-assembled 3D photonic crystal structure." In Women in Optics and Photonics in India 2022, edited by Anita Mahadevan-Jansen, Asima Pradhan, and Sujatha Narayanan Unni. SPIE, 2023. http://dx.doi.org/10.1117/12.2670047.

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Tetik, Halil, and Dong Lin. "3D Freeze Printing: Development of an Experimental Setup and Determination of 3D Printing Parameters." In ASME 2020 15th International Manufacturing Science and Engineering Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/msec2020-8287.

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Abstract 3D freeze printing is a hybrid manufacturing method composed of freeze casting and inkjet-based printing. It is a facile method to fabricate lightweight, porous, and functional structures. Freeze casting is a well-known method for fabricating porous bodies and is capable of manipulating the micro-structure of the resulting product. Freeze casting simply involves solidification of a liquid suspension using low temperature and sublimation of the solvent using low temperature and pressure. After the sublimation of the solvent crystals, we obtain a porous structure where the pores are a r
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Baba, T., M. Ikeda, and N. Kamizawa. "Observation of Photonic Bandgap in GaInAsP/InP 2D Photonic Crystals by Equivalent Transmission Measurement." In Quantum Optoelectronics. Optica Publishing Group, 1997. http://dx.doi.org/10.1364/qo.1997.qtha.3.

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Semiconductor photonic crystals are promising candidates for realizing spontaneous emission control, i.e., enhancement of spontaneous emission rate (SER) and spontaneous emission factor. Schematic structure of various dimensions of photonic crystal and corresponding wave vector space inhibited by photonic bandgaps (PBGs) are summarized in Fig. 1. Due to the almost perfect PBG and single mode localized state, 3D structures are ideal. However, structures for optical wavelength range are still difficult to fabricate. We have studied 2D structures1,2) to confirm preliminary effects of photonic cry
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Guo, Qiong, Osama R. Bilal, and Mahmoud I. Hussein. "A Fast Method for Electronic Band Structure Calculations." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65681.

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Band structure calculation provides a basis for the study of thermal, optical and magnetic properties of crystals. The reduced Bloch mode expansion (RBME) method is a model reduction method in which a selected set of Bloch eigenvectors within the irreducible Brillouin zone at high symmetry points are used to expand the unit cell problem at hand. In this method, a major reduction in computational cost is achieved with minimum loss of accuracy. The method applies to both classical and ab inito band structure calculations of periodic media, and to any type of wave propagation problem: phononic, p
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Reports on the topic "3D crystal structure"

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Kirchhoff, Helmut, and Ziv Reich. Protection of the photosynthetic apparatus during desiccation in resurrection plants. United States Department of Agriculture, 2014. http://dx.doi.org/10.32747/2014.7699861.bard.

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In this project, we studied the photosynthetic apparatus during dehydration and rehydration of the homoiochlorophyllous resurrection plant Craterostigmapumilum (retains most of the photosynthetic components during desiccation). Resurrection plants have the remarkable capability to withstand desiccation, being able to revive after prolonged severe water deficit in a few days upon rehydration. Homoiochlorophyllous resurrection plants are very efficient in protecting the photosynthetic machinery against damage by reactive oxygen production under drought. The main purpose of this BARD project was
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