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Journal articles on the topic 'Superstructure'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Mackney, Michael D. A., and Carl T. F. Ross. "Superstructure Effectiveness in the Preliminary Assessment of the Hull Behavior." Marine Technology and SNAME News 36, no. 01 (1999): 29–44. http://dx.doi.org/10.5957/mt1.1999.36.1.29.

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In a study of hull-superstructure interaction, a parametric investigation was undertaken, which was designed to examine a large number of hull-superstructure arrangements, broadly representative of warship configurations. The study was essentially numerical, based on the finite element method, but was supported by an experimental program used to validate aspects of the modeling. The majority of the numerical work was the analysis of three-dimensional simplified models having either a single superstructure on a standardized hull, or a double superstructure arrangement on an alternative standard

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2

Zhong, Zhibin, Xiaotong He, Shangheng Huang, et al. "The Influence of Soft Soil, Pile–Raft Foundation and Bamboo on the Bearing Characteristics of Reinforced Concrete (RC) Structure." Buildings 15, no. 13 (2025): 2302. https://doi.org/10.3390/buildings15132302.

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Pile–raft foundations are widely used in soft soil engineering due to their good integrity and high stiffness. However, traditional design methods independently design pile–raft foundations and superstructures, ignoring their interaction. This leads to significant deviations from actual conditions when the superstructure height increases, resulting in excessive costs and adverse effects on building stability. This study experimentally investigates the interaction characteristics of pile–raft foundations and superstructures in soft soil under different working conditions using a 1:10 geometric

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3

Khalikov, A. R., Yu V. Bebikhov, E. A. Korznikova, and S. V. Dmitriev. "Planar superstructural defects in the alloys with L10 superstructure." Frontier materials & technologies, no. 3 (2022): 90–98. http://dx.doi.org/10.18323/2782-4039-2022-3-2-90-98.

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Planar superstructural defects have a great influence on the mechanical, functional properties of binary ordered alloys of the L10 superstructure based on the fcc lattice, but there is no complete analysis of their structure and energy in the literature. For the L10 superstructure alloys of the stoichiometric composition AB, the paper gives the expressions for calculating the sublimation energy and the energy of a planar superstructural defect in the model of hard coordination spheres and pair interatomic interactions. The crystal lattice tetragonality was not taken into account. The authors p

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4

Костенко, М. Г., та А. А. Ремпель. "Распределение вакансий в гибридной сверхструктуре M-=SUB=-(5-11/18)-=/SUB=-X-=SUB=-(5-11/18)-=/SUB=- высокотемпературной упорядоченной фазы beta-TiO". Физика твердого тела 60, № 3 (2018): 456. http://dx.doi.org/10.21883/ftt.2018.03.45544.254.

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AbstractA new structural model of the high-temperature ordered β-TiO phase of titanium monoxide with vacancies in metallic and nonmetallic sublattices has been proposed. The model suggests that the vacancies are simultaneously distributed over sites of two partially disordered superstructures: monoclinic M_5X_5(mon) (space group C 2/ m ( A 2/ m )) and cubic M_5X_5(cub) (space group Pm $$\overline 3 $$ 3 ¯ m ). The hybrid superstructure belongs to space group P 1 m 1 of the monoclinic system. The proposed notation M_(5–11/18)X_(5–11/18) of the hybrid superstructure takes into account an expansi

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Paßens, Michael, Rainer Waser, and Silvia Karthäuser. "Enhanced fullerene–Au(111) coupling in (2√3 × 2√3)R30° superstructures with intermolecular interactions." Beilstein Journal of Nanotechnology 6 (June 29, 2015): 1421–31. http://dx.doi.org/10.3762/bjnano.6.147.

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Disordered and uniform (2√3 × 2√3)R30° superstructures of fullerenes on the Au(111) surface have been studied using scanning tunneling microscopy and spectroscopy. It is shown that the deposition and growth process of a fullerene monolayer on the Au(111) surface determine the resulting superstructure. The supply of thermal energy is of importance for the activation of a Au vacancy forming process and thus, one criterion for the selection of the respective superstructure. However, here it is depicted that a vacancy–adatom pair can be formed even at room temperature. This latter process results

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6

Chen, Minglin, Bo Huang, Zhiying Yang, Qingyang Ren, and Bing Zhu. "The Influence of Lateral Restraining Stiffness on the Box-Girder Superstructure under Unbroken Solitary Waves." Journal of Marine Science and Engineering 10, no. 8 (2022): 1019. http://dx.doi.org/10.3390/jmse10081019.

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At present, box-girder superstructures are commonly used in coastal bridges, and their hydrodynamic performance under extreme waves such as tsunamis has attracted a lot of attention. There is a lack of research focusing on the effect of lateral restraining stiffness on box-girder superstructures under the extreme wave condition. In this paper, a two-dimensional numerical model based on the RANS equation and SST k-ω turbulence model is established. Combined with the dynamic mesh updating technique, the effect of lateral restraining stiffness on the superstructure of a box-girder and the dynamic

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7

Veselov, Vitaliy. "Application of Steel-Reinforced Concrete Structures in Bridge Constructions." Proceedings of Petersburg Transport University 20, no. 3 (2023): 633–44. http://dx.doi.org/10.20295/1815-588x-2023-3-633-644.

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Purpose: To analyze the possible use of combined structures for bridge superstructures, to expand the range of steel-reinforced concrete structures, to explore innovative structural solutions for beams with low material consumption and increased reliability and durability. Methods: Analysis of the advantages of known combined structures, of materials used for their design, calculation of design options of bridge superstructures with the use of existing engineering techniques and involving calculation programs. Results: Traditional design solutions of bridge superstructures do not always have s

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Majlesi, Arsalan, Adnan Shahriar, Reza Nasouri, et al. "Digital Filter Design for Force Signals from Eulerian–Lagrangian Analyses of Wave Impact on Bridges." Journal of Marine Science and Engineering 10, no. 11 (2022): 1751. http://dx.doi.org/10.3390/jmse10111751.

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Finite element (FE) models that simulate wave–superstructure interactions with the coupled Eulerian–Lagrangian (CEL) technique provide a viable and economical solution to estimate wave impact forces on bridge superstructures. One of the main drawbacks of CEL FE models is that they produce solutions distorted by numerical artifacts with very high frequencies that make it difficult to quantify the magnitude of hydrodynamic forces on superstructures. This paper investigated digital filter parameters for horizontal forces extracted from CEL FE models. The optimal filter configuration was evaluated

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9

Bin Yusof, Mustafa, and Mohammad Amirul Affiz Bin Afripin. "Effect of Beam Profile Size on Bus Superstructure Strength Having Rollover Crash." Applied Mechanics and Materials 372 (August 2013): 620–29. http://dx.doi.org/10.4028/www.scientific.net/amm.372.620.

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This paper deals with structural analysis of bus superstructure undergoes rollover event. Bus superstructure with varying beam profile size will undergo rollover simulations analysis. The purpose of this work is to analyze structural response of bus superstructure in terms of deformation, stress and strain under several loadings and constraining conditions. These rollover simulations were run according to United Nation Economic Commission of Europe Regulation 66 (UNECE R66). Validation procedure using simple box modeled undergoes rollover have been done to ensure the results are synchronized w

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10

Ge, S. P., та K. H. Kuo. "Ordered γ-brass structures coexisting with the decagonal quasicrystal in a Ga46Fe23Cu23Si8 alloy". Journal of Materials Research 14, № 7 (1999): 2799–805. http://dx.doi.org/10.1557/jmr.1999.0374.

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In a moderately rapidly solidified Ga46Fe23Cu23Si8 alloy, a face-centered-cubic (fcc) superstructure (a = 1.78 nm) and a hexagonal superstructure (ahex = 2.18 nm and chex = 0.77 nm), based on the same body-centered-cubic (bcc) γ-brass structure (a = 0.89 nm), were found—by means of micro-area electron diffraction—to coexist with the decagonal quasicrystal. The fcc superstructure is probably similar to one of the F-centered-γ-brass structure and has a parallel orientation relationship with the bcc fundamental structure. The hexagonal superstructure has its (001) parallel to the (111) of the bcc

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11

Deng, Jie, and Fulin Su. "Ship target recognition based on superstructure matching." E3S Web of Conferences 522 (2024): 01038. http://dx.doi.org/10.1051/e3sconf/202452201038.

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The Automatic Target Recognition(ATR) of ship targets based on Inverse Synthetic Aperture Radar(ISAR) images plays a significant role in naval warfare.To address the issue that existing superstructure-based recognition methods do not fully use superstructure shape information,we propose a novel automatic ship recognition method based on superstructure matching using the Dynamic Time Warping (DTW) algorithm.Firstly,the superstructures of each class are extracted from ISAR images after preprocessing and preliminary calibration,then the DTW algorithm is used to create the superstructure templates

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Rurua, Nugzar, Boris Maisuradze, and Ioseb Utmelidze. "DETERMINATION OF THE RESPONSE SPECTRA OF THE SUPERSTRUCTURE OF LENGTH L=3X63.0 M." AGG+ 12, no. 1 (2024): 2–14. http://dx.doi.org/10.61892/agg202401r.

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&lt;p&gt;During a seismic impact, the main emphasis is placed on the damage to bridge piers, which were isolated from the horizontal earthquake detector. Accordingly, when calculating the bridges, the reaction spectra obtained from the horizontal earthquake detector are used both for the piers and for the superstructure. The issue of seismic resistance of bridges is very important, especially for superstructures with long spans. It is necessary to construct dynamic curves of seismic resistance for superstructures of a specific system. The article deals with composite steel and concrete

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Nabizadeh, Azam, Habib Tabatabai, and Mohammad Tabatabai. "Survival Analysis of Bridge Superstructures in Wisconsin." Applied Sciences 8, no. 11 (2018): 2079. http://dx.doi.org/10.3390/app8112079.

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Although survival analyses have long been used in biomedical research, their application to engineering in general, and bridge engineering in particular, is a more recent phenomenon. In this research, survival (reliability) of bridge superstructures in Wisconsin was investigated using the Hypertabastic accelerated failure time model. The 2012 National Bridge Inventory (NBI) data for the State of Wisconsin were used for the analyses. A recorded NBI superstructure condition rating of 5 was chosen as the end of service life. The type of bridge superstructure, bridge age, maximum span length (MSL)

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14

Wu, Chong Fu, and Shu Hong Liu. "Interaction Analysis of the Superstructure and Raft Foundation for Tall Building with Podium." Applied Mechanics and Materials 71-78 (July 2011): 1720–23. http://dx.doi.org/10.4028/www.scientific.net/amm.71-78.1720.

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Based on the three-dimensional computation model, the actual project ,a high-rise building with podiums on the jointless raft foundation, is made nonlinear numerical analysis, which aims at studying the characters of superstructure-foudation-soil’s interaction, and analyzing the stress features in raft foundations under the former interaction , the distribution of stresses on foundation plate，and the range of stress dispersion about subgrade reaction. Through the factors, which can affect superstructure-foudation interaction, are analyzed , such as superstructure’s stiffness, foundation’s stif

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15

Greenberg, B. A., N. A. Kruglikov, L. A. Rodionova, et al. "Optimised Mechanical Properties of Ordered Noble Metal Alloys." Platinum Metals Review 47, no. 2 (2003): 46–58. http://dx.doi.org/10.1595/003214003x4724658.

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The deformation behaviour of alloys that are ordered to form an L10 or L12 superstructure after heavy plastic deformation has been studied. Alloys with the LI0 superstructure, such as NiPt, FePd, CoPt and CuAu, possess an optimum combination of high strength and plasticity after thermomechanical treatment. However, such properties were not obtained in Pd3Fe, Pt3Co or Cu3Au which have the L12 superstructure. The structure of FePd was examined by transmission electron microscopy upon annealing after heavy drawing and a set of typical superstructural states was found. The conditions needed to imp

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16

Jun, Jae-Hyung, Suk-Chan Lee, Do-Sam Kim, and Kwang-Ho Lee. "Characteristics of Wave Pressures According to the Installation Location of the Caisson Superstructure under Regular Waves." Journal of Korean Society of Coastal and Ocean Engineers 34, no. 3 (2022): 82–92. http://dx.doi.org/10.9765/kscoe.2022.34.3.82.

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In recent years, coastal and port structures have attempted to prevent wave-overtopping or provide waterfront areas by installing superstructures on the structural crowns. In general, in the design stage, the Goda formula acting on the front the structure is applied to calculate the wave pressure acting on the superstructure in consideration of the wave-runup of the design wave. However, the wave pressure exceeding the Goda wave pressure could generate depending on the installation location of the superstructure where the wave-overtopping occurs. This study analyzed the applicability of the Go

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17

SHEN, JUNJIE, QIAN SUN, TIEJUN ZHU, and XINBING ZHAO. "SELF-ASSEMBLY OF BISMUTH SELENIDE TWO-DIMENSIONAL SUPERSTRUCTURE FROM HEXAGONAL NANOSHEETS." Functional Materials Letters 04, no. 03 (2011): 245–48. http://dx.doi.org/10.1142/s1793604711001956.

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A kind of novel superstructure array composed of hexagonal Bi2Se3 nanosheets were fabricated via a facile hydrothermal method. The structure was characterized by X-ray diffraction and field emission scanning electron micrioscopy. It is suggested that the two dimensional superstructure was self-assembled by sheet-like Bi2Se3 building blocks on naturally-formed Bi2SeO2 precusor template. The present result indicates one promising way in design and growth of self-assembled superstructures by controllable crystal growth from deoxided substrates with good lattice match.

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18

Ng, Morgan. "The Renaissance Superstructure." Journal of the Society of Architectural Historians 81, no. 3 (2022): 320–41. http://dx.doi.org/10.1525/jsah.2022.81.3.320.

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Abstract The Renaissance Superstructure charts the sixteenth-century reinvention of what Morgan Ng calls the superstructure: a typology of elevated defensive corridors that emerged during the Middle Ages and once traversed many European cities. Not unlike private helicopters today, such pathways afforded rulers secure and privileged mobility, enabling them to travel between their urban and extramural strongholds while remaining high above the chaos of the street. Against all odds, superstructures continued to thrive well into the early modern period, despite their military vulnerability in the

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TANYILDIZI, Muhammed, and Muhammet ÇINAR. "The Effect of The Bearing Capacity of Sub-Grade Soil on The Thickness and Cost of The Superstructure of Chip Seals." Bitlis Eren Üniversitesi Fen Bilimleri Dergisi 12, no. 2 (2023): 376–86. http://dx.doi.org/10.17798/bitlisfen.1213673.

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applied for preventative treatment of an existing road or to overlay low-trafficked roads. The thickness of the superstructure of a chip seal pavement is directly related to the bearing capacity of sub-grade soil. The bearing capacity of soil is represented by Resilient Modulus (MR) for the design of the thickness of layers. This study has focused on the effect of the bearing capacity of sub-grade soil on the thickness and cost of superstructures of chip seals. In addition, linear regression analysis was performed to investigate the relationship between the bearing capacity of the subgrade soi

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20

Marochka, V. V., and O. P. Verovka. "SPECIAL ASPECTS OF WORKING METAL TRUSSES FROM THE WIND LOAD." Science and Transport Progress, no. 17 (August 25, 2007): 204–8. http://dx.doi.org/10.15802/stp2007/17633.

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There is a problem of simplified of computational models, which are used at calculation and designing of metal superstructures as a frame. Sometime it leads to the considerable errors in calculations. In this work researches of dimensioned behavior of a superstructure by a finite element method was implemented. In the capacity of calculated construction the standard superstructure (a type project №690/2) has been used. Ground obtained results the model for calculation of supplemental forces in chords was designed, which simulate a behavior of constructional.

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21

Tamura, Shuji, Amane Kuriki, and Kohji Tokimatsu. "Ultimate Response of Superstructure Supported by Spread Foundation During Strong Earthquakes." Journal of Disaster Research 7, no. 6 (2012): 718–25. http://dx.doi.org/10.20965/jdr.2012.p0718.

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Dynamic centrifuge tests were performed on soilstructure models to investigate the mechanism of the ultimate superstructure response during strong earthquakes. Two structure models, one each for a highrise building and a low-rise building, differed in height but had almost identical mass and natural frequency. The following conclusions were drawn: 1) Superstructure acceleration amplitudes tended to reach the limit, although ground surface acceleration amplitudes increased with increasing input motion for both structure models. 2)Maximumacceleration of the high-rise building’s superstructure wa

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22

Leung, Y. F., A. Klar, K. Soga, and N. A. Hoult. "Superstructure–foundation interaction in multi-objective pile group optimization considering settlement response." Canadian Geotechnical Journal 54, no. 10 (2017): 1408–20. http://dx.doi.org/10.1139/cgj-2016-0498.

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The full potential of pile optimization has not been realized as the interactions between superstructures and foundations, and the relationships between material usage and foundation performance are rarely investigated. This paper introduces an analysis and optimization approach for pile group and piled raft foundations, which allows coupling of superstructure stiffness with the foundation model, through a condensed matrix representing the flexural characteristics of the superstructure. This coupled approach is implemented within a multi-objective optimization algorithm, capable of providing a

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23

Starostenkov, Mikhail, Alexandra Chaplygina, and Veronika Romanenko. "Details of the Formation of Superstructures in the Process of Ordering in Cu-Pt Alloys." Key Engineering Materials 592-593 (November 2013): 321–24. http://dx.doi.org/10.4028/www.scientific.net/kem.592-593.321.

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Alloys of Cu-Pt [1] are of interest for research, since the phase transitions "order - disorder" at different concentrations of components form several types of superstructures. In the alloy Cu3Pt the ordering L12 superstructure formed on the basis of fcc lattice. In the ordering of the fcc lattice of the disordered solid solution the equiatomic composition transformed into the L11 superstructure with an rhombohedral crystal lattice (a state with an L11, whose angles α, β, and γ are other than π/2). A CuPt3 in an ordered state has an L13 superstructure (a state with an L13, whose angles α, β,

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Korbova, A. "Development of lightweight polymeric-composite superstructure for a fast boat." Transactions of the Krylov State Research Centre S-I, no. 2 (2020): 242–49. http://dx.doi.org/10.24937/2542-2324-2020-2-s-i-242-249.

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This paper discusses the design of lightweight polymeric-composite superstructure for a fast boat (displacement up to 1 t) with solar panels powering its propulsion motor. The superstructure is made up by composite beams with sufficient dynamic stiffness and strength to withstand operational loads. External load was defined as spectral, inertial, transmitted as accelerations or displacements from hull to the superstructure via bearing joints. The material was GFRP with foam filler. The simulation is performed as per finite-element method in linear spatial beam formulation, solving the problems

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WANG, QIANG, HAN RUSHAN, D. L. YIN, and Z. Z. GAN. "A STUDY OF THE STABILITIES AND SUPERCONDUCTIVITIES OF THE SUPERSTRUCTURE IN YBa2Cu3O6+x SYSTEM (0 < x < 1)." Modern Physics Letters B 06, no. 07 (1992): 411–24. http://dx.doi.org/10.1142/s0217984992000508.

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We calculated the Madelung potentials of a set of possible oxygen ordering superstructures of YBa 2 Cu 3 O 6+x system by using the standard Ewald method. According to the Madelung potential criteria on cations and anions, it is easy to present the possible stable superstructures. Furthermore, the density of carriers (hole or electron) for each superstructure was obtained and the superconductivities discussed.

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Jiao, Xiaojuan, Xiaojie Liu, Beibei Wang, Gang Wang, Xiujuan Wang, and Hui Wang. "A controllable strategy for the self-assembly of WM nanocrystals/nitrogen-doped porous carbon superstructures (M = O, C, P, S, and Se) for sodium and potassium storage." Journal of Materials Chemistry A 8, no. 4 (2020): 2047–65. http://dx.doi.org/10.1039/c9ta11312f.

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A series of WM (M = O, C, P, S, and Se) nanocrystals/N-doped porous carbon superstructures with superporous structures were generated and the resulting WSe<sub>2</sub>/N–PC superstructure was used as anode for both sodium and potassium storage.

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Heboyan, Artak, Roberto Lo Giudice, Les Kalman, Muhammad Sohail Zafar, and João Paulo Mendes Tribst. "Stress Distribution Pattern in Zygomatic Implants Supporting Different Superstructure Materials." Materials 15, no. 14 (2022): 4953. http://dx.doi.org/10.3390/ma15144953.

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The aim of this study was to assess and compare the stress–strain pattern of zygomatic dental implants supporting different superstructures using 3D finite element analysis (FEA). A model of a tridimensional edentulous maxilla with four dental implants was designed using the computer-aided design (CAD) software. Two standard and two zygomatic implants were positioned to support the U-shaped bar superstructure. In the computer-aided engineering (CAE) software, different materials have been simulated for the superstructure: cobalt–chrome (CoCr) alloy, titanium alloy (Ti), zirconia (Zr), carbon-f

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Pradhan, Basudev, Sonali Das, Jinxin Li, et al. "Ultrasensitive and ultrathin phototransistors and photonic synapses using perovskite quantum dots grown from graphene lattice." Science Advances 6, no. 7 (2020): eaay5225. http://dx.doi.org/10.1126/sciadv.aay5225.

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Organic-inorganic halide perovskite quantum dots (PQDs) constitute an attractive class of materials for many optoelectronic applications. However, their charge transport properties are inferior to materials like graphene. On the other hand, the charge generation efficiency of graphene is too low to be used in many optoelectronic applications. Here, we demonstrate the development of ultrathin phototransistors and photonic synapses using a graphene-PQD (G-PQD) superstructure prepared by growing PQDs directly from a graphene lattice. We show that the G-PQDs superstructure synchronizes efficient c

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Niu, Gefei, Jianchen Lu, Xingyue Wang, et al. "Se-concentration dependent superstructure transformations of CuSe monolayer on Cu(111) substrate." 2D Materials 9, no. 1 (2021): 015017. http://dx.doi.org/10.1088/2053-1583/ac3888.

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Abstract As one of the most distinctive members of the monolayer transition metal monochalcogenides (TMM) family, the CuSe monolayer with a honeycomb structure has drawn much attention in the past few years. Depending on the Se concentration, the CuSe monolayer has two distinct superstructures on a Cu(111) substrate, a one dimensional (1D) moiré pattern, and two dimensional (2D) periodic nanopores. Here, we devise a strategy for simultaneous fabrication of the two superstructures of the CuSe monolayer on a Cu(111) substrate via artificially creating a density gradient of the Se concentration b

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Bagautdinov, Bagautdin, Andreas Jobst, Jens Ludecke, and Sander van Smaalen. "Structural basis for the phase transitions of Cs2HgCl4." Acta Crystallographica Section B Structural Science 57, no. 3 (2001): 231–36. http://dx.doi.org/10.1107/s0108768100020322.

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The a 0 × b 0 × 2c 0 twofold superstructure of dicaesium mercury tetrachloride, Cs2HgCl4, at T = 120 K has been determined by single-crystal X-ray diffraction using synchrotron radiation. Lattice parameters were found as a = 9.7105 (2), b = 7.4691 (1), c = 26.8992 (4) Å, and β = 90.368 (1)° with the supercell space group P21/c. Refinements on 1828 observed unique reflections converged to R = 0.053 (wR = 0.057) using anisotropic temperature factors for all atoms. This phase is the stable phase of Cs2HgCl4 below 163 K. A quantitative comparison is made of the distortions of the 2c 0 superstructu

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Håkonsen, Verner, Gurvinder Singh, Jianying He, and Zhiliang Zhang. "Focused ion beam milling of self-assembled magnetic superstructures: an approach to fabricate nanoporous materials with tunable porosity." Materials Horizons 5, no. 6 (2018): 1211–18. http://dx.doi.org/10.1039/c8mh01112e.

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Focused ion beam milling of self-assembled magnetic superstructures is demonstrated as a novel approach to fabricate porous materials with tunable porosity. During exposure to the ion beam, nanoparticles in the superstructure are subjected to combined milling and melting, thus merging together into a porous network.

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Liu, Yang, Haodong Xu, Wei Xia, Wenfeng Cai, and Senlin Zheng. "Research on a Vibration Model of a Superstructure under the Vibration Load of Metro Trains." Buildings 14, no. 8 (2024): 2342. http://dx.doi.org/10.3390/buildings14082342.

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In view of the problem that vibration of superstructures under vibration loads of metro trains causes, this research used a metro depot and superstructure project as its background and proposed a numerical simulation method based on the impedance analytical model and finite element model to simulate and predict the vibration and secondary noise response of subway trains affecting multi-story buildings at different locations on the ground and in the superstructure. The method’s accuracy was verified using real measurement data. The research shows that vibrations generated by subway operations v

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Mei, Kaili, Kejia Zhang, Jungu Xu, and Zhengyang Zhou. "The Application of 3D-ED to Distinguish the Superstructure of Sr1.2Ca0.8Nb2O7 Ignored in SC-XRD." Crystals 13, no. 6 (2023): 924. http://dx.doi.org/10.3390/cryst13060924.

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Compared to X-rays, electrons have stronger interactions with matter. In electron diffraction, the low-order structure factors are sensitive to subtle changes in the arrangement of valence electrons around atoms when the scattering vector is smaller than the critical scattering vector. Therefore, electron diffraction is more advantageous for studying the distribution of atoms in the structure with atomic numbers smaller than that of sulfur. In this work, the crystal structure of Sr1.2Ca0.8Nb2O7 (SCNO-0.8) was analyzed using single-crystal X-ray diffraction (SC-XRD) and three-dimensional electr

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Mone, Bhargav, Prof P. S. Mote, and Prof Dr Navnath V. Khadake. "Comparative Study of Wide Deck Box Girder Bridge Superstructures." International Journal for Research in Applied Science and Engineering Technology 10, no. 5 (2022): 3376–85. http://dx.doi.org/10.22214/ijraset.2022.43128.

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Abstract: Box Girder superstructures are most popular type amongst all other type bridge superstructures and are extensively used. Nowadays to provide better riding quality and in order to reduce number of substructures and foundations for more clear space underneath, long span continuous or integral type bridge superstructures are preferred. For longer span bridges to reduce dead load and to utilize material to its capacity cellular sections are the most efficient sections in this regard. Box girder is one of the cellular sections. In metropolitan cities one of the restrictions is the availab

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Salamekh, A., M. Alsaid, and V. A. Petrovsky. "EXPERIMENTAL SETUP FOR STUDYING DURABILITY OF THE SHIP SUPERSTRUCTURES MATERIAL." Vestnik Gosudarstvennogo universiteta morskogo i rechnogo flota imeni admirala S. O. Makarova 14, no. 2 (2022): 264–71. http://dx.doi.org/10.21821/2309-5180-2022-14-2-264-271.

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The description of an experimental setup for studying the durability of polymer composite materials samples which are used for the sea carrier ships superstructures manufacture is presented in the paper. The structural composition of the installation and methods of applying loads to the test sample are presented in detail. The installation includes a rocking table which simulates the rocking of the ship on which the test sample is fixed with bolted, riveted or adhesive connection methods. In this paper, an analysis of the loads affecting the walls of the superstructure is carried out. In parti

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Abdullayev, Seidulla, Ivan Bondar, Galymzhan Ashirbayev, Gabit Bakyt, and Yermek Baubekov. "INVESTIGATION OF THE DEFORMED STATE OF A ROAD PIPELINE TYPE." International Journal of Advanced Logistics, Transport and Engineering 8, no. 4 (2023): 18–25. http://dx.doi.org/10.52167/2790-5829-2023-8-4-18-25.

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The article is devoted to the issues of determining the deformed state of beam span structures of the road overpass during static and dynamic tests. The analysis of the operation of the superstructures of the road overpass with increased axial loads and vehicle speeds allows us to get a sufficient understanding of the causes of various types of deformation in structural elements. The result is all kinds of defects, violation of integrity and possible destruction of the structure, leading to an accident on a motor vehicle, which entails premature wear, large material losses and environmental da

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Friedl, Caroline, Christian Scheidl, Susanna Wernhart, and Dirk Proske. "Laboratory experiments to analyse the influence of bridge profiles on debris-flow impact forces." E3S Web of Conferences 415 (2023): 02006. http://dx.doi.org/10.1051/e3sconf/202341502006.

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Debris-flow impact plays a significant role in the failure of bridges in mountainous areas posing a risk to human life and leading to high reconstruction costs. The aim of this study is to measure and quantify the frontal impact forces of debris flows on bridge superstructures based on laboratory experiments with a special regard to the comparison of two different bridge profiles and the presence / absence of a bridge pier. To this end, we conducted 20 experiments, measuring the frontal impact forces on the bridge superstructure with two 3-axis force sensors at the abutments of the miniature b

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Yang, Hua, Jing Ru Zhang, Wentao Cao, Jin Zhen, and Ji Hong Wu. "Screw-Dislocation-Driven Hierarchical Superstructures of Ag-Ag2O-AgO Nanoparticles." Crystals 10, no. 12 (2020): 1084. http://dx.doi.org/10.3390/cryst10121084.

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Constructing multi-dimensional hierarchical superstructures has been, for a longtime, regarded as a promising strategy for modifying the physiochemical properties of nanomaterials. Guided by this rule, this work reports the synthesis of hierarchical superstructures of Ag-Ag2O-AgO nanoparticles (HSANs) using a convenient and surfactant-less photochemical method under 254 nm UV-irradiation. The formation of the HSANs superstructures is dominated by screw-dislocation-driven growth mechanism at low supersaturation condition. The structural evolution of the HSANs superstructures has been systematic

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Jia, Bao Rui, Ming Li Qin, Ai Min Chu, Ye Liu, Qi Ping Kang, and Xuan Hui Qu. "Hydrothermal Preparation of Flower-Like CuS Superstructure and its Optical Property." Applied Mechanics and Materials 275-277 (January 2013): 2014–17. http://dx.doi.org/10.4028/www.scientific.net/amm.275-277.2014.

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The CuS flower-like superstructures were selectively and facilely synthesized by a hydrothermal method at 120 °C. The EDS, SEM, HRTEM and FFT results show that the CuS superstore has a well-defined uniform 3-dimensional flower-like morphology. These superstructures have sizes of about 500 nm and are built from several intersectional nanoplates, which have a mean length of about 500 nm and an average thickness of about 50 nm. Optical absorption spectrum of the CuS superstructure shows it has good absorption in the near-IR region and the band gap is 2.08 eV.

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Jover, Vivien, and Szabolcs Fischer. "Statistical Analysis of Track Geometry Parameters on Tramway Line No. 1 in Budapest." Baltic Journal of Road and Bridge Engineering 17, no. 2 (2022): 75–106. http://dx.doi.org/10.7250/bjrbe.2022-17.561.

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The article examines the superstructures of the tramway tracks of tramway line No. 1 in Budapest (the capital of Hungary). Since the first appearance of tramways, several technological advancements have been made to serve passenger needs as efficiently as possible. Several types of tramway track superstructure systems can be differentiated, which are implemented differently in each project. Furthermore, these superstructure types have different degradation times (both geometrical and structural), which depend on several factors. Nowadays, visual inspections are no longer considered sufficient

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KUO, C. C., C. H. LIN, WOEI WU PAI, K. C. LIN, and T. B. TANG. "NOVEL SUPERSTRUCTURES OF ALKALI-DOPED C60 FILMS ON Cu(111) AND Ag(111) SURFACES." Surface Review and Letters 14, no. 04 (2007): 739–43. http://dx.doi.org/10.1142/s0218625x07010172.

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We report a scanning tunneling microscopy (STM) study of potassium ( K )-doped C 60 ( K x C 60) on Cu (111) and Ag (111), with focus on the observation of novel K -induced superstructures. On Cu (111), K -intercalation leads to various superstructures, i.e., p(3 × 3), p(2 × 2), and a disordered "maze-like" structure. Concomitant removal of C 60-induced substrate reconstruction was also observed. On Ag (111), K -doping induces C 60 reorientation and results in a p(2 × 2) superstructure. All observed superstructures suggest intrinsic inhomogeneity of K -doping in fullerene materials, which must

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Do, T. A., and T. H. Nguyen. "Assessment of Fluid Forces on Flooded Bridge Superstructures Using the SPH Method." Civil Engineering Journal 10, no. 12 (2024): 4104–16. https://doi.org/10.28991/cej-2024-010-12-019.

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This paper presents a numerical simulation utilizing the Smoothed Particle Hydrodynamics (SPH) methodology to analyze the impact of water flow on bridge superstructures. The focus of the study is the Canh Nang bridge, which experienced significant damage during a severe flood in Vietnam. The SPH model accounts for flow morphology, velocity fields, and flow pressure around the submerged superstructure, providing insights into areas of high flow pressure and the water resistance coefficient (Cd). By employing modified dynamic boundaries for solid surfaces and the inflow-outflow conditions, the m

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Han, Wanshui, Xin Xu, Jiajia Wang, Lili Xiao, Kai Zhou, and Xuelian Guo. "Safety Assessment of Coastal Bridge Superstructures with Box Girders under Potential Landslide Tsunamis." Journal of Marine Science and Engineering 11, no. 5 (2023): 1062. http://dx.doi.org/10.3390/jmse11051062.

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The superstructure of a coastal bridge is prone to overturn or unseating under a catastrophic tsunami, which seriously affects the post-disaster emergency rescue. In this paper, we establish a safety assessment framework for the superstructure of a bridge with a box girder under a potential landslide tsunami, and apply it to an in-service box girder and Baiyun Slide Complex on the southeast coast of China. First, a meshless numerical approach called Tsunami Squares (TS) is used to predict the movement of landslides and tsunamis. Additionally, we introduce the velocity-weakening basal friction

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Yin, Shu, Rui Xing Li, and Tsugio Sato. "Soft Solution Synthesis and Characterization of Zinc Oxide Films with Nano-Rods and Nano-Screws Superstructures." Advances in Science and Technology 45 (October 2006): 679–84. http://dx.doi.org/10.4028/www.scientific.net/ast.45.679.

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Novel superstructures of zinc oxide thin film with nano-rods and nano-screws were prepared via soft solution route without any polymer additives. The thin film of ZnO could be produced directly on the substrates. The yield of nano-rod and/or nano-screw was almost 100%. Small amount of nano-disk superstructure was also obtained. The superstructures of the film changed depending on the kind of treatment organic solvent such as methanol, butanol, i-propanol, hexane, etc. Monodispersed or symbiotic/multipod ZnO nanorods with hexagonal cross section or screw microstructure were successfully prepare

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Alekseev, A. A., A. V. Kartopoltsev, and D. N. Cherepanov. "Towards Resource Durability of Bridge Spans." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture 26, no. 4 (2024): 211–19. http://dx.doi.org/10.31675/1607-1859-2024-26-4-211-219.

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The paper studies durability of metal bridge spans as resource reliability and operability characterized by their performance specifications and maintainability before the limiting state. The ultimate condition of superstructures, in which further operation is impractical without restoration work to ensure operation conditions. The qualitative assessment of the resource durability of superstructures is based on the supposition that they maintain the normative operability at least for the specified operational period from incubation and service life to residual resource, indicating the possibil

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Vaipolin, A. A., M. A. Sinitsyn, and A. A. Yakovenko. "Superstructure Ga4InAs5." Physics of the Solid State 43, no. 4 (2001): 616–20. http://dx.doi.org/10.1134/1.1365980.

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Dimitrov, S. I., T. M. Apostolova, V. L. Makarov, and I. G. Pashev. "Chromatin superstructure." FEBS Letters 200, no. 2 (1986): 322–26. http://dx.doi.org/10.1016/0014-5793(86)81161-9.

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Подлесных, И. С., and С. Ю. Гриднев. "Features of Redistribution of Internal Forces in the Elements of Split Spans of Road Bridges Under the Influence of Solar Radiation." НАУЧНЫЙ ЖУРНАЛ СТРОИТЕЛЬСТВА И АРХИТЕКТУРЫ, no. 3(71) (September 20, 2023): 101–10. http://dx.doi.org/10.36622/vstu.2023.3.71.011.

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Постановка задачи. Неравномерный нагрев от воздействия солнечной радиации может оказывать влияние на напряженно-деформированное состояние пролетных строений. В действующих нормативных документах по проектированию пролетных строений температурное воздействие учитывается упрощенно. Данная область исследования нуждается во всестороннем развитии и детальном изучении. Результаты. Выполнен сравнительный расчет напряженно-деформированного состояния при характерных случаях воздействия солнечной радиации с использованием разработанных конечно-элементных моделей двух типов разрезных пролетных строений с

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Spivakov, Aleksandr A., Chun-Rong Lin, Yu-Chuan Chang, and Ying-Zhen Chen. "Synthesis of Fe1-xS Nanoparticles with Various Superstructures by a Simple Thermal Decomposition Route and Their Magnetic Properties." Nanomaterials 11, no. 6 (2021): 1447. http://dx.doi.org/10.3390/nano11061447.

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Pyrrhotite nanoparticles with 5C and 3C superstructures were synthesized via a simple one-step thermal decomposition method in which hexadecylamine was used as a solvent at various reaction temperatures (TR). Structural analysis showed that at TR = 360 °C, almost uniform in size and shape Fe7S8 nanoparticles with 3C superstructure are formed, and an increase in the reaction temperature leads to the formation of Fe9S10 nanoparticles (5C superstructure), herewith a significant increase in the size of nanoparticles is observed. High-temperature magnetic measurements in 5 repeated heating-cooling

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Reyes-Gasga, J. "On the 2√2 a × 2√2 a supestructure phase." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 4 (1990): 110–11. http://dx.doi.org/10.1017/s0424820100173686.

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Recently Reyes-Gasga et. al. have studied the superstructures phases produced by the ordering of vacancies (or oxygen) in the YBa2Cu3Ox, supercondutor compound. In these papers they also discussed briefly a posible interpretation of the diffraction pattern based on a square unit cell with edges 2√2 a × 2√2 a, where a=0.38nm (fig. 1e), and suggested that this pattern might not be due to a pure vacancy ordered structure but should presumably be attributed to a deformation modulated superstructure of a highly oxygen deficient perovskite phase. This diffraction pattern was studied previously in de

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