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Journal articles on the topic 'Guiding element'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Zhang, Hong Jian, Yu Feng Li, Chun Bao Xu, Shuang Xi Liu, Ze Kun Quan, and Jin Xing Wang. "OPTIMIZATION RESEARCH OF FERTILIZER GUIDING MECHANISM BASED ON THE DISCRETE ELEMENT METHOD." INMATEH Agricultural Engineering 60, no. 1 (April 30, 2020): 275–86. http://dx.doi.org/10.35633/inmateh-60-31.

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Discrete Element Method was used to study the fertilizer guiding mechanism of double-row orchard ditching fertilizer to solve certain problems, such as the low uniformity of fertilization in orchard. Firstly, on the basis of studying the existing B fertilizer guiding mechanism, A and C fertilizer guiding mechanisms were proposed, and three virtual simulation models of the fertilizer guiding mechanism were established. Secondly, the physical parameters of the fertilizer particles were analysed, combined with the dynamic analysis of the falling process of the fertilizer particles, the dynamic model of the fertilizer particles in the three fertilizer guiding mechanisms was established. Finally, three kinds of fertilizer guiding mechanisms A, B and C were analyzed by the discrete element simulation experiment, and the C fertilizer guiding mechanism was the best. Then, the C fertilizer guiding mechanisms under different curvature radius were simulated, the discrete coefficients of the edge region and the middle region were used to evaluate the fertilizer uniformity, and the optimal curvature radius of the C fertilizer guiding mechanism was obtained. The results of simulation and prototype orchard experiments show that the dispersion coefficients of the edge region and the middle region of the C fertilizer guiding mechanism are the smallest, the uniformity of fertilization is the highest, the A fertilizer guiding mechanism is the second, the B fertilizer guiding mechanism is the lowest; in the C fertilizer guiding mechanism under different radius of curvature, when the radius of curvature is 600mm, the dispersion coefficients of the edge region and the middle region of the C fertilizer guiding mechanism are the smallest, and the fertilization uniformity is the highest; after the optimization, the discrete coefficient is reduced from 0.51 to 0.26, and the fertilization uniformity is increased by 49.02%. This study has significant potential to design and processing of orchard ditching fertilizer applicator.

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2

Altuntas, Mehmet, Ozlem Salman, and Cevat Erdem Imrak. "Experimental Stress Analysis of Elevator Guiding Equipment." Key Engineering Materials 572 (September 2013): 177–80. http://dx.doi.org/10.4028/www.scientific.net/kem.572.177.

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Guide rails which take place in structure of elevator, are the important elements for safety of elevator systems. They have attached together end to end with the fishplates and bolts, and are anchored to wall with brackets. Connections between guide rails and brackets are provided by clips. To ensure the safe operation of elevators, the guide rails, fishplates, brackets, bolts, clips have enough strength against to loads and forces which affect these elements. In this study, shear tests are performed to examine mechanical properties of bolts and clips which are used guide rail anchor element. The results which are gained from stress calculations and experiments are compared and interpreted.

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3

Sun, Ya Zhou, Yi Lei Liu, Hai Tao Liu, and Ying Chun Liang. "Finite Element Analysis of Static Characteristics of a Hydrostatic Guideway and its Effect Factors." Advanced Materials Research 199-200 (February 2011): 1339–42. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.1339.

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Guide ways of ultra-precision machine tools always have sufficient stiffness and guiding precision. But guide way rails deformation caused by oil film pressure and slider offset lead to oil film clearance change which affects static stiffness and guiding precision. An inside-slider hydrostatic guide way is designed, and its static characteristics are analyzed. As a result, the effect of slider offset on stiffness and guiding precisions is obtained. A FE model of guide way is established. An elastomer of virtual material properties is used to simulate oil film, so that the relationship between oil film clearance and pressure can be represented in a certain range. Static stiffness and guiding precision are obtained considering deformation of rails.

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4

Xiao, Zhong, Yuan Zhan Wang, Ke Li Sun, and Li Qiang Sun. "Stability Analysis of the Semi-Circular Guiding Dike." Applied Mechanics and Materials 638-640 (September 2014): 1270–73. http://dx.doi.org/10.4028/www.scientific.net/amm.638-640.1270.

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A quasi static finite element method for assessing cyclic bearing capacity of semi-circular guiding dike on natural or reinforced soft clay foundation is developed by combining the concept of cyclic shear strength with D-P yield criterion. Then the proposed method is numerically implemented in the framework of the large universal finite element software. Combining with a practical engineering, the stability of semi-circular guiding dike before and after foundation reinforcement is analyzed. The results showed that the foundation bearing capacity decreases obviously when cyclic weakening effect of soft foundation was considered, so cyclic weakening effect of soft foundation under cyclic wave load should be considered in practical design. Moreover, foundation reinforcement has an obvious effect to increase foundation bearing capacity.

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5

Wang, Wei, Zhenping Wan, Boxi Wu, Longsheng Lu, and Yong Tang. "Finite element analysis for mechanics of guiding catheters in transfemoral intervention." Journal of Cardiac Surgery 34, no. 8 (June 24, 2019): 690–99. http://dx.doi.org/10.1111/jocs.14132.

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6

Lu, Shan, and Jing Ping Liu. "Finite Element Design and Manufacturing Process of Flexible Roller." Advanced Materials Research 472-475 (February 2012): 1582–85. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.1582.

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In this paper, the design of rigid roller was optimized with finite element method, and processing technology of rigid roller was improved. A new type of flexible roller structure has been designed, and investigated its processing technology, which have important guiding significance in real productivity.

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7

Zhou, Fei, Guo Min Lin, Miao Shang, and Wen Guang Zhang. "Finite Element Analysis of Capacitance Sensor." Applied Mechanics and Materials 599-601 (August 2014): 940–43. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.940.

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Capacitive sensor is a kind of parameter type sensor that capacitance is measured is converted to capacitance change. It is widely used in pressure, liquid level, displacement and other tests. In this article, the development status of capacitance sensor is showed; the working principle of capacitive sensor was introduced; through the method of grid subdivision, loading and solving of boundary conditions and the finite element post-processing, etc., the finite element analysis of capacitance sensor is complete, it has important guiding significance for capacitance sensor application research.

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8

Ciupitu, I., N. Dumitru, St Gheorghe, and C. Teisanu. "Static analysis of the guiding bearing drill contact by finite element method." Journal of Materials Processing Technology 143-144 (December 2003): 270–76. http://dx.doi.org/10.1016/s0924-0136(03)00470-9.

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9

Kin Chiang. "Finite element analysis of weakly guiding fibers with arbitrary refractive-index distribution." Journal of Lightwave Technology 4, no. 8 (1986): 980–90. http://dx.doi.org/10.1109/jlt.1986.1074842.

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10

Huang, Kuang-Yuh, and Chi-hwa Ho. "Development and Analysis of a Long-Stroke Spring Guiding System." Journal of Mechanical Design 126, no. 6 (November 1, 2004): 1055–61. http://dx.doi.org/10.1115/1.1803853.

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Inspired by the operating principle of a tank’s track, we have developed a long-stroke spring guiding system with belt-shaped springs. Other than those characteristics of normal spring guides, the long-stroke spring guiding system has longer guided stroke and adjustable recovery force. To study the mechanical characteristics of the system, experiments and analyses are carried out. The finite element analysis software ABAQUS is applied to analyze the stress and the recovery force of the preloaded spring guiding during the guiding process, and the Buckingham pi theorem is utilized to investigate the complicated relationships among the geometric parameters, the working parameters, and the guiding properties. According to the analytical and experimental results, an efficient design process and design criteria for the guiding system are concluded and practically validated. Moreover, the system can be easily scaled down or modified to adapt to the applications in precision systems and microsystems due to its simple form and great variability.

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11

Karol, Paul J., Robert C. Barber, Bradley M. Sherrill, Emanuele Vardaci, and Toshimitsu Yamazaki. "Discovery of the elements with atomic numbers Z = 113, 115 and 117 (IUPAC Technical Report)." Pure and Applied Chemistry 88, no. 1-2 (February 1, 2016): 139–53. http://dx.doi.org/10.1515/pac-2015-0502.

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AbstractThe fourth IUPAC/IUPAP Joint Working Party (JWP) on the priority of claims to the discovery of new elements 113, 115, 117 and 118 has reviewed the relevant literature pertaining to several claims. In accordance with the Criteria for the discovery of elements previously established by the 1991 IUPAC/IUPAP Transfermium Working Group (TWG), and reinforced in subsequent IUPAC/IUPAP JWP discussions, it was determined that the RIKEN collaboration has fulfilled those Criteria for element Z=113. The Dubna–Livermore–Oak Ridge collaborations claims for 115 and 117 are also in compliance. The discussion of element Z=118 will appear in a subsequent report. A synopsis of experiments and related efforts is presented along with some commentary guiding future applications of the Criteria.

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12

Huang, Tian Biao. "In the Tundish Flow State in the ANSYS Simulation." Advanced Materials Research 631-632 (January 2013): 696–99. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.696.

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Through the establishment of ANSYS tundish steel liquid flow finite element model analysis of finite element method in simulating the flow field in tundish for applications. comparison with and without flow control device of liquid steel in tundish flow characteristics the results have guiding significance for practical production.

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13

Jin, Rong. "Integrated Reporting: Its Benefits, International Framework and Quality Evaluation." Journal of Economics and Public Finance 7, no. 2 (March 2, 2021): p47. http://dx.doi.org/10.22158/jepf.v7n2p47.

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This article gives an explanation of the major objectives and crucial benefits of integrated reporting (IR). In addition, it describes the Guiding Principle “Stakeholder Relationships” and Content Element “Risks and Opportunities” of The International <IR> Framework, which is followed by the demonstration on how each of them supports the attainment of those benefits. Finally, this article critically chooses the 2016 annual report of Hyundai Motor Company as an example, evaluates the quality of report and examines its IR practice by assessing whether this company applies the selected Guiding Principle and Content Element effectively to help achieve major benefits of IR. The research method comprises the establishment of evaluation criteria and content analysis of annual reports.

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14

Shim, S. H., J. M. Cho, M. C. Lee, and M. S. Joun. "Finite Element Analysis of a Roll Piercing Process Equipped with Diecher's Guiding Discs." Transactions of Materials Processing 21, no. 1 (February 1, 2012): 19–23. http://dx.doi.org/10.5228/kstp.2012.21.1.19.

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15

Huynen, I., and Z. Raida. "Comparison of finite-element method with variational analytical methods for planar guiding structures." Microwave and Optical Technology Letters 18, no. 4 (July 1998): 252–58. http://dx.doi.org/10.1002/(sici)1098-2760(199807)18:4<252::aid-mop5>3.0.co;2-d.

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16

Wagner, Steffen, Karel Kok, and Burkhard Priemer. "Measuring Characteristics of Explanations with Element Maps." Education Sciences 10, no. 2 (February 11, 2020): 36. http://dx.doi.org/10.3390/educsci10020036.

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What are the structural characteristics of written scientific explanations that make them good? This is often difficult to measure. One approach to describing and analyzing structures is to employ network theory. With this research, we aim to describe the elementary structure of written explanations, their qualities, and the differences between those made by experts and students. We do this by converting written explanations into networks called element maps and measure their characteristics: size, the ratio of diameter to size, and betweenness centrality. Our results indicate that experts give longer explanations with more intertwinement, organized around a few central key elements. Students’ explanations vary widely in size, are less intertwined, and often lack a focus around key elements. We have successfully identified and quantified the characteristics that can be a starting point for guiding students towards generating expert-like written explanations.

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17

Teng, Qi Jie. "Solid Finite Element Analysis on close Frame of Airport Project." Applied Mechanics and Materials 744-746 (March 2015): 860–63. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.860.

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The close-frame is the main structure type of underground passage in airport project. Its characteristics are long route, multi-zone crossing, heavy load capacity. The suitable calculation method is a key issue to simulate the force of structure. Single-span close frame bearing Class A380F aircraft load is discussed in detail about stress and moment by solid finite element analysis. Therefore, it has important engineering significance in guiding structural design.

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18

Yang, Manzhi, Zhenyang Lv, Gang Jing, Wei Guo, Yumei Huang, Linyue Li, Kaiyang Wei, Bin Feng, and Hongyu Ge. "High-Precision Guide Stiffness Analysis Method for Micromechanism Based on the Boundary Element Method." Mathematical Problems in Engineering 2021 (June 26, 2021): 1–14. http://dx.doi.org/10.1155/2021/7516669.

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The guide stiffness performance directly affects the motion of the micromechanism in accuracy and security. Therefore, it is crucial to analyze the guide stiffness precisely. In this paper, a high-precision guide stiffness analysis method for the micromechanism by the boundary element method (BEM) is proposed. The validity and accuracy of the analysis method are tested by a guide stiffness experiment. In order to ensure the accuracy and safety during the micromechanism motion, a guiding unit of the micromechanism was designed based on the guiding principle. The guiding unit can provide parasitic motion and additional force in the motion of the micromechanism. Then, the stiffness equations of the beam element are derived by the boundary element method. The stiffness equation of straight circular flexure hinge is analyzed by rigid discretization and rigid combination, and the guide stiffness of the mechanism is investigated by rigid combination. Finally, according to the actual situation, the stiffness matrix of the guide rail (Kb) was proposed, and the analytical value of the guide stiffness was calculated to be 22.2 N/μm. The guide stiffness performance experiment was completed, and the experimental value is 22.3 N/μm. Therefore, the error between the analysis method and the experimental results is 0.45%. This study provides a new method for the stiffness analysis of high-precision micromechanisms and presents a reference for the design and stiffness analysis of complex structures. This method is helpful for stiffness analysis of the microrotary mechanism with high accuracy.

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19

Xu, Yu Feng. "Entity Finite Element Simulation of Steel-Concrete Composite Cable-Stayed Bridge." Applied Mechanics and Materials 44-47 (December 2010): 3077–85. http://dx.doi.org/10.4028/www.scientific.net/amm.44-47.3077.

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The finite element simulation is an engineering technology developed with the development of computer technologies, which is also an important development direction of structure design and analysis in the future. With the rapid development of computer software and hardware technologies, it is a tendency to perform the exquisite FE simulation analysis for structure by high performance computer (HPC). In this paper the exquisite FE simulation analysis of global model consisted of block elements and shell elements is performed by means of HPC based on Steel-concrete composite cable-stayed bridge. Moreover, the shrinkage and creep effect in the construction and post-construction period are considered. Besides effectively guiding the design, the high accurate analysis results indicate that it is practical to perform the refined FE simulation analysis by HPC.

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20

Tsuji, Y., and M. Koshiba. "A finite element beam propagation method for strongly guiding and longitudinally varying optical waveguides." Journal of Lightwave Technology 14, no. 2 (1996): 217–22. http://dx.doi.org/10.1109/50.482266.

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21

Shanjia Xu and Xinquing Sheng. "Coupling of edge-element and mode-matching for multistep dielectric discontinuity in guiding structures." IEEE Transactions on Microwave Theory and Techniques 45, no. 2 (1997): 284–87. http://dx.doi.org/10.1109/22.557612.

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22

Tsuji, Yasuhide, Masanori Koshiba, and Tomohide Tanabe. "A finite-element beam-propagation method for strongly guiding optical waveguides with magnetooptic materials." Electronics and Communications in Japan (Part II: Electronics) 79, no. 7 (1996): 22–29. http://dx.doi.org/10.1002/ecjb.4420790703.

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23

Yang, Xue Feng, Wei Li, and Yu Qiao Wang. "Analysis the Displacement Amplification of Compliant Parallel Four-Bar Using Piezo Actuator." Applied Mechanics and Materials 155-156 (February 2012): 201–5. http://dx.doi.org/10.4028/www.scientific.net/amm.155-156.201.

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This paper researched the displacement amplification and hysteresis of parallel four-bar amplification mechanism using piezo actuator. Firstly, the displacement amplification was analyzed by employing the material bending theory. Theory and finite element model (FEM) proved that the amplification ratio of parallel four-bar mechanism is only related to the position of driving point and the guiding beam displacement is linear with the driving point input when it is fixed. Then the Preisach model was employed to model the hysteresis of guiding beam and performed to control the output displacement of the mechanism. Experiments proved that the model can effectively improve the output displacement accurate of the guiding beam and can realize random sequence output displacement using the Preisach interpolation surface.

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24

Xu, Shan Shan, and Wei Wei Li. "Application Analysis of Finite Element Method in the Calculation of Foundation Pit Excavation." Advanced Materials Research 898 (February 2014): 395–98. http://dx.doi.org/10.4028/www.scientific.net/amr.898.395.

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This paper introduces the finite element method theory of foundation pit excavation, on the basis of summarizing the past experience, combined with the mechanical property of engineered soil, by using a variety of contact relation provided by the finite element software, select the appropriate unit to simulate the foundation pit excavation model scientific and reasonable. It has a very important guiding significance in practical engineering.

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25

Vila Merino, Eduardo Salvador, and Asier Martínez De Bringas. "Citizenship, social and educational rights: Reflections for a pedagogy of human rights." education policy analysis archives 18 (August 10, 2010): 18. http://dx.doi.org/10.14507/epaa.v18n18.2010.

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This article seeks to address human rights issues from a triple perspective. First, conceptually locating human rights in the context of globalization and making a critique of the liberal conception of human rights. Second, deepen citizenship as an element of visibility of the political and law and focus of education. Finally, think and bet on how the social and educational rights must become the guiding axes civil and political rights that they are not empty in practice. Definitively, it tries to articulate the central elements for a pedagogy of the human rights.

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26

Cai, Jing, and Zong Bao Yue. "Study of the Critical Load for Rigid Airport Pavement by the Finite Element Analysis." Applied Mechanics and Materials 204-208 (October 2012): 1748–53. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.1748.

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In the airport pavement design, the critical load position has the guiding significance for the airport pavement slab design. The finite element analysis model of rigid airport pavement is built, and 2-slab model and 9-slab model are analyzed. The corresponding load positions are obtained when the maximum stress and the maximum vertical displacement happen

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27

Xue, Pan, Yujun Hao, Wan Jiao, Jie Ren, Feifei Yang, Di Ren, Wenhui Zhang, Hao Rong, Bin Hu, and Yuxiang Huang. "Design and Test of a Double-Curved Guiding Groove for a High-Speed Precision Seed-Metering Device." Transactions of the ASABE 63, no. 5 (2020): 1349–60. http://dx.doi.org/10.13031/trans.13331.

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HighlightsThe instability of the seed release point in a seed-metering device is proved theoretically.A double-curved guiding groove at the seed-release point improves the seed-metering uniformity.A discrete element model was used to examine effects of the design parameters on the metering performance.The critical parameters for the double-curved guiding groove design were determined.Abstract. The instability of the seed release point in a seed-metering device is one of the main causes of the non-uniformity of seed spacing. To improve the seed spacing uniformity, a double-curved guiding groove (DGG) was designed based on the prerelease adaptive principle. The DGG was used at the seed release point of an existing high-speed precision soybean seed-metering device with a double-setting plate. The results showed that the prerelease curved surface of the DGG was capable of guiding seeds to be released at the same seed release point at all times, and the adaptive curved surface of the DGG prevented any changes in seed velocity caused by friction or collisions between seeds and the meter, thereby improving the seed spacing uniformity significantly. A discrete element model was developed and validated with laboratory tests. Through simulations using the model, the primary and secondary factors of the DGG impacting the qualified rate of seed metering (QRM) and the coefficient of variation of the seed spacing uniformity (CVU) were identified and were, in descending order, the spacing of prerelease (SPR), the starting position of prerelease (SPP), the inclination angle of the seed outlet (ASO), and the inclination angle of the receiving cup (ABR). Regression equations of the QRM and CVU with the two main impacting factors were then established. For a planter travel speed of 10 km h-1, the optimal SPR was 10 mm, and the optimal SPP was 40°, where the QRM was 100% and the CVU was 16.61%. When compared to seed metering without the DGG, the CVU was reduced by 2.55%, showing that the DGG significantly improved the uniformity of seed spacing. Keywords: Double-curved guiding groove, Discrete element method, Seed-metering device, Travel speed, Uniformity.

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28

Hoffman, D. C. "Role of the periodic table in discovery of new elements." Proceedings in Radiochemistry 1, no. 1 (September 1, 2011): 1–5. http://dx.doi.org/10.1524/rcpr.2011.0000.

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AbstractThis year (2009) marks the 140th Anniversary of Mendeleev's original 1869 periodic table of the elements based on atomic weights. It also marks the 175th anniversary of his birth in Tolbosk, Siberia. The history of the development of periodic tables of the chemical elements is briefly reviewed beginning with the presentation by Dmitri Mendeleev and his associate Nikolai Menshutkin of their original 1869 table based on atomic weights. The value, as well as the sometimes negative effects, of periodic tables in guiding the discovery of new elements based on their predicted chemical properties is assessed. It is noteworthy that the element with Z=101 (mendelevium) was identified in 1955 using chemical techniques. The discoverers proposed the name mendelevium to honor the predictive power of the Mendeleev Periodic Table. Mendelevium still remains the heaviest element to have been identified first by chemical rather than nuclear or physical techniques. The question concerning whether there will be a future role for the current form of the periodic table in predicting chemical properties and aid in the identification of elements beyond those currently known is considered.

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29

Li, Xue Bing. "Finite Element Analysis about Push Plates of Dismounting Coupler and Buffer from Passenger Train Base on ANSYS." Applied Mechanics and Materials 709 (December 2014): 25–27. http://dx.doi.org/10.4028/www.scientific.net/amm.709.25.

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The important parts of passenger train—push plates, which force directly coupler and buffer device, and bear heavy load, easily have fatigue damage. The finite element analysis for them is to improve the design , for analyzing structure and checking intensity, so it has a guiding significance.

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30

Viswanath, P., and Arghya Das. "Exploring chemo-mechanics of granular material using DEM." EPJ Web of Conferences 249 (2021): 14013. http://dx.doi.org/10.1051/epjconf/202124914013.

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Particle Size Distribution (PSD) is one of the prime guiding factors of granular media response. Degradation via weathering is a process, which brings about a gradual shift in the PSD. In nature, chemically sensitive material like calcite undergoes chemo-mechanical degradation bringing about variations in their behaviour. In the present study, an experimental investigation is carried out to get insight into the mechanical response during the coupled chemo-mechanical process. The experiments were carried out at two different rates of dissolutions in a custom made 1D compression mould. From the experiments, it is clear that the higher rate of dissolution reduces the lateral earth pressure more than the lower rate. Discrete Element Method (DEM) analyses the micromechanical process behind the observed response from experiments. The results showed a reduction in lateral stress as soon as the dissolution starts. DEM analysis confirms the competing mechanism between grain size reduction and grain rearrangement as the guiding element for the granular media response.

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31

Wang, Min. "Discussion on Product Perceptual Design in Information Age." Applied Mechanics and Materials 121-126 (October 2011): 1997–2001. http://dx.doi.org/10.4028/www.scientific.net/amm.121-126.1997.

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Consumption demand has transferred from quantitative consumption to "perceptual consumption" at nowadays through qualitative consumption changes along with arriving of information age. Development direction for guiding thoughts of designing creation shall be pursuing of more harmonious and closer perceptual relations between user and commercial goods in the future. Product designing shall not only focus on integration of visual elements but shall also pay more attention to perceptual part produced by overall sense organ in product using process. This essay discusses on how to implement product perceptual design by carrying out visual, touching, hearing, smelling and other organ element analysis.

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32

Zhang, Yan, Gang Wu, and Zheng Bin Wang. "Research on Key Elements of the Regional Logistics Capability Considering Integration of Evaluation, Prediction and Planning." Applied Mechanics and Materials 253-255 (December 2012): 1527–31. http://dx.doi.org/10.4028/www.scientific.net/amm.253-255.1527.

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So far, most of the existing researches regard the key elements of the regional logistics capability as an isolated object and neglect the logical relationship and interdependence among links of regional logistics development’s process. This will slow down the developing speed of the regional logistics. Considering the impelling and linking relationship between the evaluation, prediction and planning of the regional logistics capability, this paper, guiding by the idea “integration”, studies the definition, the main participants, the goal and the key elements of the regional logistics capability, and then proposes that the result of evaluation and prediction as well as the implement measures of planning should be one-to-one correspondence with each key element.

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33

Tian, Guo Liang, and Yin Wang. "Numerical Simulation Analysis on Mass Concrete Thermal Stress." Applied Mechanics and Materials 204-208 (October 2012): 4396–99. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.4396.

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Cement hydration heat temperature of the concrete could result thermal stress. Which is an important reason for the concrete structure’ cracks. The cracks could reduce the structure’ durability and structural stability. A spatial finite element model analysis on a mass concrete foundation board of a project was established using large-scale finite element analysis software. Temperature stress finite element analysis was carried on model. Numerical simulation analyzed the hydration heat of mass concrete construction phase and calculated the mass concrete’ temperature and stress distribution. Results of numerical simulation of crack control had certain guiding significance to mass concrete construction.

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34

Macias-Montero, Manuel, Pedro Moreno-Zárate, Francisco Muñoz, Belén Sotillo, Marina Garcia-Pardo, Rosalía Serna, Paloma Fernandez, and Javier Solis. "Competition Effects during Femtosecond Laser Induced Element Redistribution in Ba- and La-Migration Based Laser Written Waveguides." Materials 14, no. 12 (June 9, 2021): 3185. http://dx.doi.org/10.3390/ma14123185.

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Fs-laser induced element redistribution (FLIER) has been a subject of intensive research in recent years. Its application to various types of glasses has already resulted in the production of efficient optical waveguides, tappers, amplifiers and lasers. Most of the work reported on FLIER-based waveguides refers to structures produced by the cross-migration of alkali (Na, K) and lanthanides (mostly La). The latter elements act as refractive index carrying elements. Herein, we report the production of Ba-based, FLIER-waveguides in phosphate glass with an index contrast > 10−2. Phosphate glasses modified with the same amount of Na2O and K2O, and variable amounts of BaO and/or La2O3 were used to produce the FLIER-waveguides with Ba and or La acting as index carriers. Ba-only modified glasses show a waveguide writing threshold and light guiding performance comparable to that of La-based structures. However, mixed Ba-La glasses show a much higher element migration threshold, and much smaller compositionally modified regions. This behavior is consistent with a competition effect in the cross-migration of both elements (Ba and La) against the alkalis. Such an effect can be applied to inhibit undesired element redistribution effects in fs-laser processing applications in multicomponent glasses.

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35

Tao, Xingming, Lihua Fang, Luchao Lin, Ruirui Du, and Yinyu Song. "Simulation of Optical Coherence Elastography in Agar Based on Finite Element Analysis." E3S Web of Conferences 271 (2021): 04025. http://dx.doi.org/10.1051/e3sconf/202127104025.

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The finite element method is used to simulate the optical coherent elastic imaging in Agar. The shear wave velocity in Agar was measured by ARF-OCE system, and then the Agar model was established by finite element method, and then the shear wave velocity in Agar model was measured. The shear wave velocity in experiment and finite element simulation were compared and analyzed. The shear wave velocity obtained in the experiment is 2.50 m/s, and the range of shear wave velocity obtained in the finite element simulation is 2.4802m/s, and the average wave velocity is 2.5167m/s. The finite element method can express tissue elasticity directly and clearly, and it plays a great guiding role in corneal elastography.

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Boruah, Jiten, Bhawana Dabas, Monika Rajput, and R. K. Sinha. "Characterization of Fluoropolymer Photonic Crystal Fiber for THz Regime." Journal of Atomic, Molecular, Condensate and Nano Physics 1, no. 2 (December 30, 2014): 65–69. http://dx.doi.org/10.26713/jamcnp.v1i2.264.

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In this paper, we present the propagation characteristics of Fluoropolymer based Photonic Crystal Fiber (PCF) exhibiting guiding properties in terahertz region. The variation of effective index of guided mode and dispersion with wavelength in hexagonal lattice Fluoropolymer PCF are investigated by using the fully-vectorial finite element method (FEM).

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Fumagalli, Natalia, Claudia Colombo, Paolo Stefano Ferrario, Giulio Senes, and Alessandro Toccolini. "Suburban waterfront with ecological and recreational function: planning based on network analysis." Journal of Agricultural Engineering 44, no. 4 (February 28, 2014): 141. http://dx.doi.org/10.4081/jae.2013.183.

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Urban fringe areas have multiple land uses and are places where sections of waterway, together with fragmented areas of natural vegetation, are often found passing through urban areas, transportation routes and gradually expanding rural areas. These overlapping functions are often the cause of an extremely disorderly landscape devoid of guiding connotative elements. In this context, the waterfront can be a guiding element for the redevelopment of the fringe areas between cities and the countryside. The purpose of this paper is the definition of a methodology for planning a suburban waterfront with an ecological function and bicycle paths for recreational use. The evaluation phases for resources and planning, conducted with tools for network analysis, have identified potential corridors based on current land uses and have addressed the issue of bicycle paths on an inter-municipal scale. The methodology is proposed for regional level planning and the validation of the method was achieved through its application to the stretch of the Lambro River between Monza Park and the city of Milan in the North of Italy.

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Song, Ji Shun, Yun Tao Li, De Heng Du, Xu Ma, and Kang Yin. "Numerical Simulation of Eccentric Extrusion Form Bending Pipe Parts." Materials Science Forum 704-705 (December 2011): 1492–97. http://dx.doi.org/10.4028/www.scientific.net/msf.704-705.1492.

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Eccentric extrusion method is used in this paper，through this method achieved bending aluminum-alloy tube extrusion forming process. Used finite element method，achieved three-dimensional numerical simulation of bending aluminum-alloy tube in eccentric extrusion by DEFORM-3D finite element commercial software，analyzed velocity field distribution，material flow，squeezing pressure，stress and strain field distribution of the process；Introduce the mechanism of one step direct extrusion forming tube bending process，it will be of great guiding significance the actual die design.

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Miclosina, Calin Octavian, and Constantin Viorel Câmpian. "Fatigue Analysis of Low Level Links of a Parallel Topology Robot Guiding Device Mechanism." Applied Mechanics and Materials 162 (March 2012): 98–105. http://dx.doi.org/10.4028/www.scientific.net/amm.162.98.

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The paper presents a fatigue analysis of low level links of a parallel topology robot guiding device mechanism. This mechanism has a FP3+3·RRS+MP3structure. The 3D model of the guiding device is presented. In a SolidWorks Motion study, motion laws for motors are defined and a force is applied on the mobile platform MP3. The loads on low level links are imported in SolidWorks Simulation module. Then, von Mises stresses are determined by finite element method and, based on these results, fatigue analysis is performed. Two variants of low level links are analized: first, with no fillet between the base cylinder and the body and second, with fillet.

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Hu, You Wang, Ji Wen Xiang, and Xiao Yan Sun. "Temperature Compensation Experiment of Love Wave Sensor." Advanced Materials Research 490-495 (March 2012): 673–77. http://dx.doi.org/10.4028/www.scientific.net/amr.490-495.673.

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Love wave sensor is one of the most promising SAW sensors for liquid detection, because of acoustic energy can be confined in sensing surface by waveguide layer of Love wave sensor, which resulted in higher sensitivity to surface perturbations. Temperature coefficient of frequency (TCF) has deep effect on effective sensitivity of Love wave sensor. In order to improve the performance of Love wave sensor, the theoretical relationship of TCF on substrates and guiding layers temperature properties is researched. It found that reasonable combinations of substrates and guiding layers was a feasible method to obtain effective temperature compensation, and experimental TCF of sensitive element is reduced to 0.75ppm/°C by this method.

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Hawes, Colin. "Transforming the Culture of Chinese Prosecutors Through Guiding Cases." New Criminal Law Review 23, no. 2 (2020): 196–235. http://dx.doi.org/10.1525/nclr.2020.23.2.196.

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Public prosecutors are a key element within the legal complex, and crucial to the effective implementation of legal reforms. China’s procurators (public prosecutors) have previously colluded with local governments, police, and courts to “strike hard” against crime while overlooking systemic beating and torture of detained suspects to obtain confessions, shoddy investigative practices, and frequent miscarriages of justice. However, fifteen sets of Guiding Cases issued by the Supreme People’s Procuratorate since 2010 promote an unprecedented change in Chinese procurator culture away from “striking hard” to substantive protection of criminal suspects’ rights and exclusion of tainted evidence. They reinforce criminal procedure reforms since 2010 by demonstrating how procurators should protect innocent people against wrongful convictions and police brutality. They also stress the broader duty of China’s procurators to uphold the public interest against corrupt businesses and officials, especially in food safety, land-taking, and environmental protection cases. With other key actors in China’s “legal complex”—rights lawyers and civil society groups—still suppressed by the government, this effort to transform procurator culture is an essential, though still incomplete, step on China’s tortuous path toward a fair and just legal system.

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Hurks, Paul, Henk Langendijk, and Kavita Nandram. "How do current public Integrated Reports align with the IR Framework?" Maandblad Voor Accountancy en Bedrijfseconomie 89, no. 12 (December 17, 2015): 518–32. http://dx.doi.org/10.5117/mab.89.31220.

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This paper examines empirically the current practice with regard to integrated reporting according to the IR Framework among the 104 original participants (companies) of the IIRC Pilot program. We made a selection with respect to these 104 participants based on organization’s stipulation that they issue an integrated report and/or that they made use of the IR Framework for their report in a journey towards integrated reporting. In general we can conclude that the 38 companies in our sample are well ahead on the journey of integrated reporting. These 38 companies comply to a certain extent with the requirements with respect to the fundamental concepts, guiding principles and content elements of the IR Framework. Also the majority of the annual integrated reports have an assurance opinion. The main Welds of improvements are the connection of the content elements with the capitals and the value creation process. Furthermore, companies should pay more attention to the content element ‘opportunities’ and not only display their ‘risks’. Also, companies should treat the content element ‘governance’ as a means to create value and have this element connected with the capitals. Currently the governance information is rather traditional and in line with the legal requirements. Moreover there is room for improvement with respect to the content element ‘strategy in relation with resource allocation’ (use of capitals). The content element ‘basis of preparation and presentation’ is often not present in the annual integrated report.

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Meng, Hai Dong, Yan Xu, and Dong Yuan Zang. "The Failure Mode Analysis of Open Pit Slope Base on Finite Element Method." Applied Mechanics and Materials 405-408 (September 2013): 35–39. http://dx.doi.org/10.4028/www.scientific.net/amm.405-408.35.

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This paper is aimed at analysing the slope failure model for an open pit slope. Firstly, The method of engineering geological survey is carried out for the open pit south slope. Then, the appropriate geological model is established. And the slope model of the open pits was established and solved by finite elemen program. The analysis reveals the internal sliding of the open-cut and the failure modes of bottom sliding along the base weak level. It will be an important guiding significance for the safe production of open pit coal mine.

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Ma, Cong Bing, and Yong Hai Wu. "Finite Element Analysis of Drive Axle Housing of a Special Vehicle." Advanced Materials Research 590 (November 2012): 352–56. http://dx.doi.org/10.4028/www.scientific.net/amr.590.352.

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The integral axle housing of a special vehicle was taken as the research object, with the 3D model of the drive axle housing built by using 3D CAD software UG. The ANSYS is taken as the FEA computing platform, the strength and stiffness of the axle housing under the five load conditions is calculated by it. The results show that the impact of such conditions, the drive axle housing can happen to be yield easily. While in the remaining conditions, the drive axle housing is not too much security reserves, which exit some certain security risks. The method used in this paper for great guiding significance to reduce product development costs, shorten development cycles and improve product quality.

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Chen, Ruo Meng, Wurikaixi Aiyiti, and Juan Wang. "Study on the Numerical Simulation of Femoral Injury." Key Engineering Materials 579-580 (September 2013): 845–50. http://dx.doi.org/10.4028/www.scientific.net/kem.579-580.845.

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According to the numerical simulation of femoral injury, this paper created femoral finite element model from medical image of CT scan, simulated the deformation and stress distribution of femur under complex stress, explored the application of digital bone scientific for femoral injury, analyzed the characteristics of stress distribution on bone under complex loads with the medical image reconstruction technology and the finite element numerical simulation technology, and it can play a guiding role in the research on the injury mechanism of femur under complex loads.

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Pankova, Olga V. "The Functional Competence of a Judge in Administrative Offense Proceedings." Administrative law and procedure 3 (March 4, 2021): 16–22. http://dx.doi.org/10.18572/2071-1166-2021-3-16-22.

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The article considers the functional competence of a judge in the proceedings on administrative offenses as an element of his administrative-procedural status. In this case, the competence is defined as the basis of this status and at the same time-as an element of the procedural and legal mechanism for the implementation of justice in cases of administrative offenses. Revealing the content of the functional competence of the judge, the paper analyzes his jurisdictional and organizational-guiding procedural powers and gives their characteristics.

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Kong, Linghui, Sen Yan, Vladimir Volskiy, Binke Huang, and Guy A. E. Vandenbosch. "Leaky Wave Array in Full Planar Substrate with EBG-Based Wave Guiding Channel." International Journal of Antennas and Propagation 2021 (May 24, 2021): 1–10. http://dx.doi.org/10.1155/2021/5527445.

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A new type of wave guiding structure is proposed is this paper. The guiding channel is developed on the full planar dielectric substrate and aligned with electromagnetic bandgap (EBG) units. Since the bandgap of these mushroom-like units is calculated with a coverage of the channel working band, these units are of great importance on ensuring the transmission efficiency and eliminating the coupling effect between channels. Then, this wave guiding structure is extended to the design of a six-element leaky wave antenna array with a complete size of 25.6 mm × 80.6 mm, which is working at Ku band from 12.0 GHz to 12.8 GHz and achieving a bandwidth of about 0.8 GHz, a gain of 11.36 dBi, and an efficiency of ca. 86.7% at 12.0 GHz. Within the working frequency band, this antenna topology achieves a frequency-dependent beam scanning in the forward directions, and it offers a potential for radar application on road speed detecting with low costs.

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Liu, Jing Hua, and Gui Chuan Hu. "The Study of Vibration for Motor-Compressors." Applied Mechanics and Materials 467 (December 2013): 479–82. http://dx.doi.org/10.4028/www.scientific.net/amm.467.479.

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According to the motor-compressors vibration problems occur in the process of operation, research the working principle of the unit, the incentive vibration element, establishes the physical model of the vibration excitation source. it is a guiding significance for the dynamic design, reform system, monitoring and operation management of the motor-compressors.

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Liu, Meng Xia, Ju Hua Li, and Lei Zhang. "Finite Element Numerical Simulation Research on Fractured Horizontal Well’s Productivity." Applied Mechanics and Materials 644-650 (September 2014): 3379–82. http://dx.doi.org/10.4028/www.scientific.net/amm.644-650.3379.

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Conventional productivity research method of fractured horizontal wells doesn’t meticulously describe the seepage characteristics of the near wellbore area. Based on the similarity of seepage field and temperature field, and ANSYS finite element software platform, this paper conducts the simulation calculation of the fractured horizontal wells’ productivity, shows the flow of near wellbore area, and analyzes the factors affecting the productivity on fractured horizontal well by using the heat flow field model in the ANSYS software platform. The results show that the larger the angle between fractures and horizontal wells, the higher the production. It is necessary to place the fractures stagger to the greatest extent, and the fracture spacing should be extended as much as possible in actual production. This optimization design of fractured horizontal well has a certain role in guiding.

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Wan, Liang-Tian, Lu-Tao Liu, Wei-Jian Si, and Zuo-Xi Tian. "Joint Estimation of 2D-DOA and Frequency Based on Space-Time Matrix and Conformal Array." Scientific World Journal 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/463828.

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Each element in the conformal array has a different pattern, which leads to the performance deterioration of the conventional high resolution direction-of-arrival (DOA) algorithms. In this paper, a joint frequency and two-dimension DOA (2D-DOA) estimation algorithm for conformal array are proposed. The delay correlation function is used to suppress noise. Both spatial and time sampling are utilized to construct the spatial-time matrix. The frequency and 2D-DOA estimation are accomplished based on parallel factor (PARAFAC) analysis without spectral peak searching and parameter pairing. The proposed algorithm needs only four guiding elements with precise positions to estimate frequency and 2D-DOA. Other instrumental elements can be arranged flexibly on the surface of the carrier. Simulation results demonstrate the effectiveness of the proposed algorithm.

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