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1

KHODZITSKAYA, Valentyna. "Development of corporate structurs: genesis of scientific approaches." Fìnansi Ukraïni 2019, no. 278 (2019): 111–23. http://dx.doi.org/10.33763/finukr2019.01.111.

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Elzayady, Nagwa, and Eltahry Elghandour. "FRACTURE RESISTANCE OF COMPOSITE STRUCTURS FROM HEMP BIO-FIBERS." Journal of Advanced Engineering Trends 40, no. 2 (2021): 137–47. http://dx.doi.org/10.21608/jaet.2020.44308.1059.

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3

HASEGAWA, Iwao, and Taro ARIKAWA. "ACCURACY AND COSTS OF NUMERICAL SIMULATION FOR DESIGN OF MARITIME STRUCTURS." Journal of Japan Society of Civil Engineers, Ser. B3 (Ocean Engineering) 76, no. 2 (2020): I_115—I_120. http://dx.doi.org/10.2208/jscejoe.76.2_i_115.

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4

Hoying, D. A., C. S. Tan, Huu Duc Vo, and E. M. Greitzer. "Role of Blade Passage Flow Structurs in Axial Compressor Rotating Stall Inception." Journal of Turbomachinery 121, no. 4 (1999): 735–42. http://dx.doi.org/10.1115/1.2836727.

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The influence of three-dimensional flow structures within a compressor blade passage has been examined computationally to determine their role in rotating stall inception. The computations displayed a short length-scale (or spike) type of stall inception similar to that seen in experiments; to the authors’ knowledge this is the first time such a feature has been simulated. A central feature observed during the rotating stall inception was the tip clearance vortex moving forward of the blade row leading edge. Vortex kinematic arguments are used to provide a physical explanation of this motion as well as to motivate the conditions for its occurrence. The resulting criterion for this type of stall inception (the movement of the tip clearance vortex forward of the leading edge) depends upon local flow phenomena related to the tip clearance with the implication that for this and possibly other stall mechanisms the flow structure within the blade passages must be addressed to explain the stability of an axial compression system that exhibits such short length-scale disturbances.
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5

MAGAINO, Shinichi. "Damage of Structures in the Environment and Its Countermeasure. Damage of Outdoor Structurs Caused by Acid Rain." Journal of the Surface Finishing Society of Japan 46, no. 6 (1995): 477–80. http://dx.doi.org/10.4139/sfj.46.477.

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6

Subcommittee on Common Design Code. "General principles for the limit state design of steel and concrete structurs." Doboku Gakkai Ronbunshu, no. 450 (1992): 13–20. http://dx.doi.org/10.2208/jscej.1992.450_13.

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7

Yamasaki, Satoshi, and Kazuhiko Fukui. "2P266 Tertiary structure prediction of RNA-RNA complex structures using secondary structure information(22A. Bioinformatics: Structural genomics,Poster)." Seibutsu Butsuri 53, supplement1-2 (2013): S203. http://dx.doi.org/10.2142/biophys.53.s203_1.

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8

Matsumura, Hiroyuki, and Takamasa Ogata. "Quality Assurance in Welded Structurs I. A Conception of Quality Assurance and Safety Evaluation." Journal of the Japan Welding Society 62, no. 3 (1993): 120–25. http://dx.doi.org/10.2207/qjjws1943.62.120.

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9

Maniou, Theodora A. "From PSB to Privatisation." VIEW Journal of European Television History and Culture 6, no. 11 (2017): 102. http://dx.doi.org/10.18146/2213-0969.2017.jethc127.

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In Cyprus the historical evolution of television follows the country's turbulent political history, while clearly depicts the political system's vulnerabilities. This article presents a historical overview of the historical evolution of television in Cyprus, in accordance to the specific historical artefacts that generated a series of disadvantages still reflecting upon private broadcasting. The aim of the article is to present the interrelation between private broadcasting and politics and its current aftermath in Cyprus. Through a comparative analysis of different surveys, depicting the audience's points of view regrding private broadcasting and PSB, this study highlights the specific structurs and vulnerabilities of the current broadcasting sector.
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10

A-Ali Drea, Abbas, and Halla T. Mohammed. "Simulation Study of Adrenaline Synthesis from Phenylalanine." JOURNAL OF ADVANCES IN CHEMISTRY 12, no. 1 (2015): 3888–901. http://dx.doi.org/10.24297/jac.v12i1.843.

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Simulation study of Adrenaline synthesis from Phenylalanine has been carried out using semi-empirical methods (PM3) and density functional theory (DFT) STO-3G level of theory . Geometrical properties and vibration mods have been calculated for all structures. Different probable products have been suggested for each reaction and the most probable products being selected depending upon the electronic properties to prove the pathway of reactions that’s needed to synthesis adrenaline in the human body. The calculations show the most probable product than other structurs due its energetic values of total energy, energy barrier value, heat of formation, zero point energy, imaginary frequency and rate constant that’s equal to (5.554*1012, 5.572*1012, 7.857*1012, 1.331*1013,1.116*1013) respectively by s-1 units. Thermodynamic functions (∆H, ∆S, ∆G) have been calculated for five steps reactions of Adrenaline synthesis . In reaction 1 equal to (-69.468, 1.37*10-4, -66.610), reaction 2 (-46.453, 3.044*10-3, -64.710), reaction 3 (-63.734, 0.022, 138.900), reaction 4 (87.036, 8.631*10-3, -451.510) and reaction 5 (-6.722,-0.025, 346,800) respectively by kCal/mol, kCal/mol/deg, and kCal/mol respective units. The chemical reactivity or energy gap has been calculated for the most probable products in the pathway of adrenaline synthesis .
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11

Aftandiliants, Ye G. "Modelling of structure forming in structural steels." Naukovij žurnal «Tehnìka ta energetika» 11, no. 4 (2020): 13–22. http://dx.doi.org/10.31548/machenergy2020.04.013.

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The study showed that the influence of alloying elements on the secondary structure formation of the steels containing from 0.19 to 0.37 wt. % carbon; 0.82-1.82 silicon; 0.63-3.03 manganese; 1.01-3.09 chromium; 0.005-0.031 nitrogen; up to 0.25 wt.% vanadium and austenite grain size is determined by their change in the content of vanadium nitride phase in austenite, its alloying and overheating above tac3, and the dispersion of ferrite-pearlite, martensitic and bainitic structures is determined by austenite grain size and thermal kinetic parameters of phase transformations. Analytical dependencies are defined that describe the experimental data with a probability of 95% and an error of 10% to 18%. An analysis results of studying the structure formation of structural steel during tempering after quenching show that the dispersion and uniformity of the distribution of carbide and nitride phases in ferrite is controlled at complete austenite homogenization by diffusion mobility and the solubility limit of carbon and nitrogen in ferrite, and secondary phase quantity in case of the secondary phase presence in austenite more than 0.04 wt. %. Equations was obtained which, with a probability of 95% and an error of 0.7 to 2.6%, describe the real process.
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12

Tamura, Shohei, Yaemi Teramoto, Jiro Katto, and Hiroshi Wako. "1P041 Structural alignment with Delaunay codes characterizing local structures and structural motifs identified by the alignment(1. Protein structure and dynamics (I),Poster Session,Abstract,Meeting Program of EABS & BSJ 2006)." Seibutsu Butsuri 46, supplement2 (2006): S157. http://dx.doi.org/10.2142/biophys.46.s157_1.

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13

Palemón-Arcos, Leonardo, Alec Torres-Freyermuth, Gabriela Medellín, et al. "Determinación de la vida útil de una protección costera a través de la interacción oleaje-estructura." Tecnología y ciencias del agua 09, no. 4 (2018): 01–24. http://dx.doi.org/10.24850/j-tyca-2018-04-01.

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14

HORNUNG, Martin, Takahisa DOBA, Rajat AGARWAL, Mark BUTLER, and Olaf LAMMERSCHOP. "Structural Adhesives for Energy Management and Reinforcement of Body Structures." Journal of The Adhesion Society of Japan 44, no. 7 (2008): 258–63. http://dx.doi.org/10.11618/adhesion.44.258.

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15

Patil, K. S., and Ajit K. Kakade. "Seismic Response of R.C. Structures With Different Steel Bracing Systems Considering Soil - Structure Interaction." Journal of Advances and Scholarly Researches in Allied Education 15, no. 2 (2018): 411–13. http://dx.doi.org/10.29070/15/56856.

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16

Grigorenko, G. M., V. D. Poznyakov, T. A. Zuber, and V. A. Kostin. "Peculiarities of formation of structure in welded joints of microalloyed structural steel S460M." Paton Welding Journal 2017, no. 10 (2017): 2–8. http://dx.doi.org/10.15407/tpwj2017.10.01.

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17

TAKEYA, H., T. OZAKI, and N. TAKEDA. "SMS-30: Fabrication of Highly Reliable Advanced Grid Structure(SMS-V: SMART MATERIALS AND STRUCTURES, NDE)." Proceedings of the JSME Materials and Processing Conference (M&P) 2005 (2005): 43–44. http://dx.doi.org/10.1299/jsmeintmp.2005.43_3.

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18

Standley, Daron M., Hiroyuki Toh, and Haruki Nakamura. "S08I2 Functional Annotation Sequence-weighted Structure Alignments(Bioinformatics in the Era of Structural Proteomics)." Seibutsu Butsuri 47, supplement (2007): S11. http://dx.doi.org/10.2142/biophys.47.s11_3.

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19

Kuppuraj, Gopi, Fumiko Suzuki, Masahiko Ikeuchi, and Kei Yura. "3P050 Structural insights into enzyme-bound flavin adenine dinucleotides (FAD)(01A. Protein: Structure,Poster)." Seibutsu Butsuri 53, supplement1-2 (2013): S220. http://dx.doi.org/10.2142/biophys.53.s220_2.

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20

Yang, Ke Jia, Wei Li, and Jian Wei Yin. "Seismic Performance Evaluation of Village Buildings in Wenzhou." Applied Mechanics and Materials 166-169 (May 2012): 2522–27. http://dx.doi.org/10.4028/www.scientific.net/amm.166-169.2522.

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Earthquakes cause severe damage to structures and economic losses recently, based on which investigations are carried out on village buildings in Wenzou. Investigation results show that cavity wall structures are the most widely used by village buildings. So a typical cavity wall structure is selected for analyses in this paper. The typical structure is simulated using Sap2000. The structure was analyzed with and without structural columns and ring beams. Analyses results show that the prototype structure is inadequate to resist earthquake load. Structural columns and ring beams can enhance its seismic performance and provide it adequate seismic performance. So it is necessary to enhance village structures with structural measures.
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21

Neogi, Depankar, Craig Douglas, and David R. Smith. "Experimental Development of Self-Deployable Structures." International Journal of Space Structures 13, no. 3 (1998): 157–69. http://dx.doi.org/10.1177/026635119801300305.

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Deployable space structures are prefabricated structures which can be transformed from a closed, compact configuration to a predetermined expanded form in which they are stable and can bear loads. The present research effort investigates a new family of deployable structures, called self-deployable structures. Unlike other deployable structures, which have rigid members and moving joints, the self-deployable members are flexible while the connecting joints are rigid. The joints store the predefined geometry of the deployed structure in the collapsed state. The self-deployable structure is stress-free in both deployed and collapsed configurations and results in a self-standing structure which acquires its structural properties after a chemical reaction. Reliability of deployment is one of the most important features of the self-deployable structure, since it does not rely on mechanisms that can lock during deployment. The unit building block of these structures is the self-deployable structural element. Several of these elements can be linked to generate more complex building blocks such as a triangular or tetrahedral structures. Different self-deployable structural element and self-deployable structure concepts are investigated in the present research work, and the performance of triangular and tetrahedral prototype structures are experimentally explored.
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22

Lu, Yaxin, Jeremy Richmond, Kekic Murat, Jianlin Yin, and Brett Hambly. "2P039 Structural defects in fibrillin associated with Marfan syndrome(01B. Protein: Structure & Function,Poster)." Seibutsu Butsuri 53, supplement1-2 (2013): S165. http://dx.doi.org/10.2142/biophys.53.s165_3.

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23

Baek, Mihwa, Masakatsu Kamiya, Taichi Nakazumi, et al. "3P011 Structural analysis of antimicrobial peptide CP1 with LPS by NMR(01A. Protein: Structure,Poster)." Seibutsu Butsuri 53, supplement1-2 (2013): S213. http://dx.doi.org/10.2142/biophys.53.s213_5.

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24

Merlino, Stefano, Elena Bonaccorsi, and Thomas Armbruster. "The real structures of clinotobermorite and tobermorite 9 Å: OD character, polytypes, and structural relationships." European Journal of Mineralogy 12, no. 2 (2000): 411–29. http://dx.doi.org/10.1127/0935-1221/2000/0012-0411.

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25

Mills, Stuart J., Anthony R. Kampf, Andrew M. McDonald, et al. "The crystal structure of parnauite: a copper arsenate?sulphate with translational disorder of structural rods." European Journal of Mineralogy 25, no. 4 (2013): 693–704. http://dx.doi.org/10.1127/0935-1221/2013/0025-2329.

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26

Purushotthama, P., and Dr Jagadish G. Kori. "A Study on Performance of Outrigger Structural Systems during Lateral Loads on High Rise Structures." Bonfring International Journal of Man Machine Interface 4, Special Issue (2016): 07–13. http://dx.doi.org/10.9756/bijmmi.8148.

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27

Mohan, S. C., Amit Yadav, Dipak Kumar Maiti, and Damodar Maity. "A comparative study on crack identification of structures from the changes in natural frequencies using GA and PSO." Engineering Computations 31, no. 7 (2014): 1514–31. http://dx.doi.org/10.1108/ec-02-2013-0061.

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Purpose – The early detection of cracks, corrosion and structural failure in aging structures is one of the major challenges in the civil, mechanical and aircraft industries. Common inspection techniques are time consuming and hence can have strong economic implications due to downtime. The paper aims to discuss these issues. Design/methodology/approach – As a result, during the past decade a number of methodologies have been proposed for detecting crack in structure based on variations in the structure's dynamic characteristics. This work showcases the efficacy of particle swarm optimization (PSO) and genetic algorithm (GA) in damage assessment of structures. Findings – Efficiency of these tools has been tested on structures like beam, plane and space truss. The results show the effectiveness of PSO in crack identification and the possibility of implementing it in a real-time structural health monitoring system for aircraft and civil structures. Originality/value – The methodology presented establishes the PSO as robust and competent tool over GA for crack identification using changes in natural frequencies.
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28

Dzwierzynska, Jolanta. "Integrated Parametric Shaping of Curvilinear Steel Bar Structures of Canopy Roofs." Buildings 9, no. 3 (2019): 72. http://dx.doi.org/10.3390/buildings9030072.

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Shaping building objects is conditioned by many interrelated factors, both architectural and structural. Modern tools for shaping structures working in the environment of Rhinoceros 3D such as Grasshopper and Karamba 3D enable algorithmic-aided shaping structures, while allowing the free flow of information between the geometric model and structural model. The aim of the research is to use these tools to test the curvilinear steel bar roofs’ structures shaped based on Catalan surfaces as well as to select the most efficient structure. Three types of roof structures were analyzed: cylindroid shape, conoid shape, and hyperbolic paraboloid shape. In order to find the most preferred structural form, evolutionary structural optimization was carried out, which allowed, among others, to determine optimal discretization of the base surface, as well as optimal positions of supporting columns. As the optimization criterion, the minimum mass of the structure was assumed. The most effective structure turned out to be a structure based on hyperbolic paraboloid supported by multi-branch columns. The use of a roof with the above structure is beneficial not only because of the low weight of the structure compared to the analyzed structures, but also due to the possibility of using flat panels on the roof.
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29

Shareef, Sardar S., and Hozan L. Rauf. "The Influence of Building Structure on Human Perception in Interior Spaces." Journal of Studies in Science and Engineering 1, no. 1 (2021): 1–10. http://dx.doi.org/10.53898/josse2021111.

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Structures create interior spaces. However, the sense of every space depends on the type of structure used. This paper tries to evaluate structural systems apply in architecture and then analyse space identity given by different structures. The method of this study mainly depends on a survey in the current literature and case study which the colour building in the department of architecture in EMU-North Cyprus has taken as the case study. Frame concrete (column and beam) is used in the building, which has made the interiors compacted in the structure's boundary. At the same time, inside spaces have some freedom as partition walls separate them. In this case, the structure proliferates visual focal points, corners and angles, to the main space. These visual definitions lately make the spaces to be more defined.
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30

Gozora, V. "The adjustment of agrarian business structure to the European agrarian structures during pre access period into the EU." Agricultural Economics (Zemědělská ekonomika) 48, No. 8 (2012): 333–38. http://dx.doi.org/10.17221/5330-agricecon.

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The article deals with the preparation of the agricultural business structure for accession into the European agrarian structures in the pre-accession period. Main attention is devoted to the preparation of agrarian management and to changes in the macroeconomic area. From the viewpoint of the information mentioned above, the paper includes the explanation of the agrarian functions in the agrarian sector and prediction of the development of business base in the sectors of agriculture, food processing industry and services. The synthetic part deals with the integration and globalization tendencies in the agricultural and food production.
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31

DOS SANTOS E LUCATO, S. L., R. M. MCMEEKING, and A. G. EVANS. "SMS-12: Shape Morphing Truss Structure for Aerospace and Marine Applications(SMS-II: SMART MATERIALS AND STRUCTURES, NDE)." Proceedings of the JSME Materials and Processing Conference (M&P) 2005 (2005): 30. http://dx.doi.org/10.1299/jsmeintmp.2005.30_4.

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32

Liu, Qiu Xiang, Rui Jun Zhang, and Fang Zhang. "Structural Phase Stability and Electronic Properties of Magnesium under High Pressure from First-Principles Calculations." Applied Mechanics and Materials 668-669 (October 2014): 64–69. http://dx.doi.org/10.4028/www.scientific.net/amm.668-669.64.

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First-principles pseudopotential calculations have been performed to investigate the structural stability and electronic properties of magnesium considering three possible structures under high pressure. The results show that magnesium crystallizes in the hcp structure is to be the most stable structure at the ground state, because of the lowest total energy. Magnesium undergoes a pressure-induced phase transition from the hcp structure to bcc structure at 65 GPa. And no further transition is found up to 220 GPa. The electronic structure properties of three structures of magnesium are also calculated and discussed. The structural stability mechanism is also explained through the electronic structures of three phases.
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33

Liu, Yan, Ping Sheng, and Wei Zhen. "Design and Construction on the Roof Systems of Guangzhou South Railway Station." Advanced Materials Research 163-167 (December 2010): 496–500. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.496.

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The roof structures of Guangzhou South Railway Station are long-span spatial steel structures, The form and structure system are complicated. Prestress cable-arch structure, cable-shell structure and tri-directional truss-string spatial structure are applied. It recommend the construction and design process of roof structure, and also give an analysis of roof structure's working principle on prestress cable-arch structure , cable-shell structure, and the tri-directional truss-string structures. The results show that working stability of the roof structures is good.
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34

Yamasaki, Satoshi, Shugo Nakamura, and Kazuhiko Fukui. "2P130 Attempts to predict RNA tertiary structures using fragment structural library based on secondary structures(The 48th Annual Meeting of the Biophysical Society of Japan)." Seibutsu Butsuri 50, supplement2 (2010): S105. http://dx.doi.org/10.2142/biophys.50.s105_2.

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35

Chen, Yimin, Yulin Liu, and Xin Fang. "The new evidence of China’s economic downturn: From structural bonus to structural imbalance." PLOS ONE 16, no. 9 (2021): e0257456. http://dx.doi.org/10.1371/journal.pone.0257456.

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The slowdown of China’s economic growth in the middle-income stage has caused widespread concerns. Based on the analysis of economic structures to explain the downward trend of economic growth, this study expanded the Solow-Swan model to investigate the structural imbalances and evaluated their impacts during the structural transformation in different stages and regions on the economic downturn. Considering the processes of production, distribution, and consumption, six structures were chosen for national and prefecture-levels in China from 1997 to 2017, including sectoral structure, population structure, investment and consumption structure, import-export structure, urban-rural income structure, and financial structure. The study found that China’s comprehensive economic structure was significantly different before and after the middle-income stage, and structural bonus tended to decline. Structural imbalance presented a U-shaped pattern of decreasing first and then increasing, and the impact on economic growth underwent stages of suppression-promotion-suppression. There was a significant difference in the imbalance of six sub-structures and their impacts; furthermore, in the four regions of east, center, west, and northeast the observations were very different. Taken together, the imbalance of economic structure and economic transformation coexisted, and the economic growth slowed down. Based on the experiences from China, this paper provided some evidence for promoting structural optimization and transformation.
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36

Chandonia, John-Marc, and Steven E. Brenner. "The Impact of Structural Genomics: Expectations and Outcomes." Science 311, no. 5759 (2006): 347–51. http://dx.doi.org/10.1126/science.1121018.

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Structural genomics (SG) projects aim to expand our structural knowledge of biological macromolecules while lowering the average costs of structure determination. We quantitatively analyzed the novelty, cost, and impact of structures solved by SG centers, and we contrast these results with traditional structural biology. The first structure identified in a protein family enables inference of the fold and of ancient relationships to other proteins; in the year ending 31 January 2005, about half of such structures were solved at a SG center rather than in a traditional laboratory. Furthermore, the cost of solving a structure at the most efficient SG center in the United States has dropped to one-quarter of the estimated cost of solving a structure by traditional methods. However, the efficiency of the top structural biology laboratories—even though they work on very challenging structures—is comparable to that of SG centers; moreover, traditional structural biology papers are cited significantly more often, suggesting greater current impact.
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37

Zhang, Hua, and Qi Ming Li. "Research on Structural Stability of Prilling Tower in Fertilizer Industry." Applied Mechanics and Materials 368-370 (August 2013): 1556–65. http://dx.doi.org/10.4028/www.scientific.net/amm.368-370.1556.

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Prilling tower is the core structure in the technological process of Nitro-compound fertilizer plant, whose safety is directly related to the normal operation of fertilizer production. Prilling tower is a hollow high special structure which is constructed by concrete-filled steel tubular (CFT) columns bonded by annularity truss and widely used in fertilizer plant. The stability study of the tower is still a blank at present as the structure's specific form. In this paper, buckling analysis is used to analyze the structure in order to define the CFT prilling tower's effective length, according to its characteristics. Its effective length is calculated with equivalent negative stiffness method and the stiffness demands of annularity truss are identified. Elastic-plastic stable assessment of structural stability is carried on using advanced analysis method. A new load model and evaluation method (lateral loading method) has been proposed based on advanced analytical results, which is suitable for evaluating elastic-plastic stability of high-rise steel structure. The stability design methods of such structures are also presented according to the analytical results, providing reference for similar structures and projects.
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38

Jurado-Piña, R., and M. A. Salazar-Troya. "A simple method for the design of tension structures combining topological mapping and nonlinear structural analysis." Informes de la Construcción 66, Extra-1 (2014): m012. http://dx.doi.org/10.3989/ic.13.090.

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39

Hawthorne, Frank C. "Structure and chemistry of phosphate minerals." Mineralogical Magazine 62, no. 2 (1998): 141–64. http://dx.doi.org/10.1180/002646198547512.

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AbstractFor complex rocks in which the structure of minerals, rather than their chemical composition, changes with progressive evolution of the system, it makes sense to try and monitor such an evolving system through the progressive change in the crystal structures of the constituent phases. In effect, the paragenetic sequences of minerals in such complex environments should be related to the crystal structures of the constituent minerals. In order to consider variations in structure topology, we need to organize crystal structures into hierarchical schemes, using the hypothesis that structures may be hierarchically ordered according to the polymerization of the coordination polyhedra with higher bondstrengths. Structural units are organized according to the mode of polymerization: unconnected polyhedra, clusters, chains, sheets and frameworks.The bond-valence structure of (OH) and (H2O) shows that on one side, (OH) and H2O are strong Lewis bases; on the other side, they are weak Lewis acids. As a result, a very important role of both (OH) and (H2O) is to prevent polymerization of the structural unit in specific directions. Thus, the dimensionality of the structural unit is controlled primarily by the amount and role of hydrogen in the structure. The way in which we have formulated these ideas also allows development of a predictive framework within which specific aspects of the chemistry and structure of phosphates can be considered.This approach to mineral structure, applied via the idea of a structural unit, can play a major role in developing structural hierarchies in order to bring about some sort of order to the plethora of hydroxyhydrated-phosphate structures. Furthermore, by combining the idea of binary structural representation with bond-valence theory, we see the eventual possibility of predicting stoichiometry and structural characteristics of these minerals, particularly those in complex low-temperature hydrothermal environments
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40

Benaroya, Haym. "Tensile-Integrity Structures for the Moon." Applied Mechanics Reviews 46, no. 6 (1993): 326–35. http://dx.doi.org/10.1115/1.3120361.

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A brief review of lunar base structural concepts is presented followed by a discussion of tensile structural concepts. Specifically, tensile integrity (tensegrity) structures are suggested for study for possible use on the lunar surface due to their efficiencies and advantages. Such application could conceivably be for second generation structures. These structures, like pneumatic and truss structures, are self-sustaining and can be designed not to require any significant foundation structure. One exciting advantage of the class of structure discussed here is the possibility of designing deployable versions.
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41

Pho, Nguyen Van, Le Ngoc Thach, and Chu Thanh Binh. "On the reliability problems of structures subjected to dynamical loads." Vietnam Journal of Mechanics 29, no. 3 (2007): 427–39. http://dx.doi.org/10.15625/0866-7136/29/3/5551.

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Mechanically, the assessment of the structure's safety relates to three aspects: strength, stability and oscillation. In the oscillation problems of structures, the safety conditions are conditions of frequency, amplitude, resonance, maximum displacement,etc ...In case that the structure itself contains random parameters and subjects to external loads that are also the random parameters (or random processes), the assessment of the structure's safety according to the deterministic inequalities of structural mechanics will be insignificant. Therefore, this should be assessed according to the probabilistic point of view, namely, according to the reliability.The determination of reliability of the oscillation problems of structures encounters many difficulties because the outputs of the structural analysis problem are the random processes (or the random field). Meanwhile, up to now, the determination of a probability according to which a random process will belong to a given domain by mathematical method has not been sufficiently studied yet.In this paper, the authors, originating from a general definition on the reliability of a system by V. V. Bolotin, assess the reliability of oscillating structure, by determining the upper and the lower bounds of the reliability.The upper and the lower bounds of the reliability are recommended to be determined by determining the probability depending on only an inequality instead of determining the it depending on a system of inequalities. Thus, the determination is very favourable.
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42

Zhang, Ying Lu, Hao Ran Wang, Shao Jun He, and Bao Shi Yang. "The Study of Structure Supporting System in Log Cabins." Applied Mechanics and Materials 777 (July 2015): 154–59. http://dx.doi.org/10.4028/www.scientific.net/amm.777.154.

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Modern timber buildings are more and more popular with their characteristics of green, environmental protection, low carbon. According to their structure, they are divided into light wood frame construction, sawn and log timber structures, glued laminated timber structures, log cabins. This paper analyzes the structure supporting structural system of log cabins, from material requirements, structural design to production process, supplemented by practical case to demonstration, to explore the design method of log cabin’s structure supporting system.
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43

Takezawa, Akihiro, Kanjuro Makihara, Nozomu Kogiso, and Mitsuru Kitamura. "CO-JP-1 Ground structure approach for PZT layout optimization in semi-active vibration control systems of space structures." Proceedings of Mechanical Engineering Congress, Japan 2012 (2012): _CO—JP—1–1—_CO—JP—1–1. http://dx.doi.org/10.1299/jsmemecj.2012._co-jp-1-1.

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44

van Beusekom, Bart, George Damaskos, Maarten L. Hekkelman, et al. "LAHMA: structure analysis through local annotation of homology-matched amino acids." Acta Crystallographica Section D Structural Biology 77, no. 1 (2021): 28–40. http://dx.doi.org/10.1107/s2059798320014473.

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Comparison of homologous structure models is a key step in analyzing protein structure. With a wealth of homologous structures, comparison becomes a tedious process, and often only a small (user-biased) selection of data is used. A multitude of structural superposition algorithms are then typically used to visualize the structures together in 3D and to compare them. Here, the Local Annotation of Homology-Matched Amino acids (LAHMA) website (https://lahma.pdb-redo.eu) is presented, which compares any structure model with all of its close homologs from the PDB-REDO databank. LAHMA displays structural features in sequence space, allowing users to uncover differences between homologous structure models that can be analyzed for their relevance to chemistry or biology. LAHMA visualizes numerous structural features, also allowing one-click comparison of structure-quality plots (for example the Ramachandran plot) and `in-browser' structural visualization of 3D models.
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45

Hensley, Scott I., and Phil Perry. "Long-Term Durability Study: Long-Span Structures." Transportation Research Record: Journal of the Transportation Research Board 1736, no. 1 (2000): 62–70. http://dx.doi.org/10.3141/1736-09.

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Well over 2,000 long-span structural plate structures have been constructed in the United States over the past 25 years, both as grade-separation structures and culverts. Long-span structural plate structures are short-span bridges defined in the AASHTO Standard Specifications for Highway Bridges, Section 12, as structural plate structures (pipe, pipe-arch, and arch) that exceed the maximum sizes imposed by Article 12.6 on flexibility factor limits. Both applications have the potential to subject the long-span structure to corrosive action from runoff and deicing chemicals and also to abrasion from an abrasive bedload. In an effort to ensure that current design methods incorporate proper protection, if required, 21 long-span structures were inspected and rated in terms of condition with regard to the effects of corrosion and abrasion. Core samples were extracted from each structure and analyzed for metal loss. Samples of runoff and backfill were also taken and analyzed for pH, resistivity, and chloride content. Given this information, structure performance was compared with accepted methods of projecting metal loss in corrugated steel drainage structures.
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46

Clabbers, Max T. B., and Hongyi Xu. "Macromolecular crystallography using microcrystal electron diffraction." Acta Crystallographica Section D Structural Biology 77, no. 3 (2021): 313–24. http://dx.doi.org/10.1107/s2059798320016368.

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Microcrystal electron diffraction (MicroED) has recently emerged as a promising method for macromolecular structure determination in structural biology. Since the first protein structure was determined in 2013, the method has been evolving rapidly. Several protein structures have been determined and various studies indicate that MicroED is capable of (i) revealing atomic structures with charges, (ii) solving new protein structures by molecular replacement, (iii) visualizing ligand-binding interactions and (iv) determining membrane-protein structures from microcrystals embedded in lipidic mesophases. However, further development and optimization is required to make MicroED experiments more accurate and more accessible to the structural biology community. Here, we provide an overview of the current status of the field, and highlight the ongoing development, to provide an indication of where the field may be going in the coming years. We anticipate that MicroED will become a robust method for macromolecular structure determination, complementing existing methods in structural biology.
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47

Tan, Wen Hui, Miao Yu, and Peng Fei Zhang. "Damage Analysis on a Frame Structure under Repeatedly Blasting Vibration." Advanced Materials Research 163-167 (December 2010): 3214–18. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.3214.

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Blasting is a conventional technique for mining, but structures adjacent to open pit mines are often damaged by blasting vibration, therefore, durability and safety of these structures are affected. Damage characteristics of a three-floor frame structure on the top of an open pit mine under repeatedly blasting vibration is studied in this paper. The damage model of structural members is made based on the theory of damage mechanics of continuous medium, and an overall damage model of the structure is also established by the method of frequency. The results showed that the Young’s modulus, frequency of the structure decreased as increasing of the blasting times, the damage factors of structural members are bigger than that of the structure; the strength of the structure decreased greatly under repeatedly blasting vibration, the strength of the structure is low. The durability of structures is affected, but the structure will not collapse. The research is helpful for blasting control in open pit mines and design on structures adjacent to open pit mines.
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48

Gan, Jinsong, Peizhen Li, and Qiang Liu. "Study on Dynamic Structure-Soil-Structure Interaction of Three Adjacent Tall Buildings Subjected to Seismic Loading." Sustainability 12, no. 1 (2019): 336. http://dx.doi.org/10.3390/su12010336.

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The dynamic structure-soil-structure interaction (SSSI) involving three adjacent structures with pile-raft foundations arranged along the east-west direction in a viscoelastic half-space is numerically studied under earthquake excitation. The direction of earthquake excitation is perpendicular to the direction of the structural arrangement. In the simulation, the Davidenkov model of the soil skeleton curve is assumed for soil behavior, and the viscous-spring artificial boundary is adopted. In order to investigate the effects of SSSI, the clear distance between structures, structure types, structure heights, and the first natural periods of structures are considered, and a series of numerical simulations are conducted. The peak floor displacement and the peak inter-story shear force of structures are examined to determine the SSSI effects. Results show that SSSI effects change significantly with these factors. Furthermore, the structural seismic response could be increased or reduced as a result of SSSI, depending mainly on the structural characteristics, rather than the location of the structures. These results are significant for studying the effects of SSSI and the sustainable development of cities, especially for the seismic design of dense urban buildings.
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BAIG, MIRZA AAMIR, and Rizwan Rashid. "EFFECT OF SHEAR WALL ON PERFORMANCE OF MULTISTOREY BUILDING." International Journal of Engineering Science Technologies 4, no. 5 (2020): 26–39. http://dx.doi.org/10.29121/ijoest.v4.i5.2020.111.

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Seismic force, predominantly being an inertia force depends on the mass of the structure. As the mass of the structure increases the seismic forces also increase causing the requirement of even heavier sections to counter that heavy forces. And these heavy sections further increase the mass of the structure leading to even heavier seismic forces. Structural designers are met with huge challenge to balance these contradictory physical phenomena to make the structure safe. The structure no more can afford to be rigid.
 This introduces the concept of ductility. The structures are made ductile, allowing it yield in order to dissipate the seismic forces. A framed structure can be easily made ductile by properly detailing of the reinforcement. But again, as the building height goes beyond a certain limit, these framed structure sections (columns) gets larger and larger to the extent that they are no more practically feasible in a structure. There comes the role of shear walls. Shear walls provide ample amount of stiffness to the building frame resisting loads through in plane bending. But they inherently make the structure stiffer. So, there must be a balance between the amount of shear walls and frame elements present in a structure for safe and economic design of high-rise structures.
 Here an attempt has been made to study the behavior of different structures of reinforced concrete with different heights with and without shear walls. Coupled shear walls have also been studied to understand the comparative merit or demerit of framed structures with shear wall structures. Studies have been carried out on sample model structures and analysis has been carried out by ETABS software. It has been ensured to consider sample models that represent the current practices in structural design to include different structural configurations. Models having varied structural configurations like framed, shear wall, coupled shear wall, central core shear wall, core in core etc. have been taken into consideration. The inherent asymmetry present in the structures have also been dealt.
 The results have been tabulated and plotted to study their comparative behavior and interaction with each other. The findings of the study have been summarized and discussed.
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Charnele ; Anastasia Maurina, Charnele. "CONSTRUCTION EXPLORATION OF RECIPROCALDEPLOYABLE BAMBOO IN GRIDSHELL STRUCTURE SYSTEM." Riset Arsitektur (RISA) 4, no. 03 (2020): 205–33. http://dx.doi.org/10.26593/risa.v4i03.3929.205-233.

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Abstract - Existence of the need for a semi-permanent or temporary shelters that are easily and quickly built for certain events, for this reason this study explored the potential of transformative wide-span structures with the development and development of usable and reciprocal structural systems in the form of bamboo gridshell roof structures, into an independent arrangement composed of configuration modules with computational assistance according to architectural design needs. This is done by knowing the adequante potential of structural systems, design patterns, and connection systems in several study objects that are evaluated by comparative methods on system structure, connections, trunk character, distribution load, structure locking system, and application. The benefits of research on bamboo research for new materials in the engineering of bamboo materials that can increase the value of Indonesian locality by being able to be used by the community are needed in using bamboo materials for the development of permanent permanent shade. In result, discussion of the criteria for structural systems according to research objectives analysis of the objects of the study where transformation structures based on character structures that can be used as reciprocal structures are supporting systems to provide stability and an independent locking system. both of these structures are flexible and easily duplicated structural systems so that according to the wide span structure, the structural system is designed to make a gridshell. this gridshell form is processed with computational help to effectively create reciprocaldeployable structure systems. The research was explored, experiments were carried out on reciprocal patterns to find the most stable patterns and change the character of straight rods into reciprocal rods that could be deployed using elements such as scissors, which then developed the connection type with potential analyzers and displacement of each connection. The experiment produced a new structural system by collecting the second structural system obtained by a structure that can be transformed, has an independent locking system, and can stretch wide with a gridshell shape. Keywords : reciprocal, deployable, dome, gridshell, transformable
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