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Journal articles on the topic 'Anchor rail'

Author: Grafiati

Published: 4 June 2021

Last updated: 15 February 2022

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1

Jensen, Joergen L., Giuseppe Caprolu, and Ulf Arne Girhammar. "Fracture Mechanics Models for Brittle Failure of Bottom Rails due to Uplift in Timber Frame Shear Walls." Advances in Civil Engineering 2016 (2016): 1–21. http://dx.doi.org/10.1155/2016/9402650.

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In partially anchored timber frame shear walls, hold-down devices are not provided; hence the uplift forces are transferred by the fasteners of the sheathing-to-framing joints into the bottom rail and via anchor bolts from the bottom rail into the foundation. Since the force in the anchor bolts and the sheathing-to-framing joints do not act in the same vertical plane, the bottom rail is subjected to tensile stresses perpendicular to the grain and splitting of the bottom rail may occur. This paper presents simple analytical models based on fracture mechanics for the analysis of such bottom rail

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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.

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3

Cho, Sanghyeon, Kyoung-Chan Lee, Seung Yup Jang, Ilwha Lee, and Wonseok Chung. "Sequential Track–Bridge Interaction Analysis of Quick-Hardening Track on Bridge Considering Interlayer Friction." Applied Sciences 10, no. 15 (2020): 5066. http://dx.doi.org/10.3390/app10155066.

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A quick-hardening track (QHT) was developed by injecting quick-hardening mortar into an existing ballast track to rapidly substitute the ballast track with a slab track, thereby improving maintainability and running safety. QHT tracks on a bridge undergo track–bridge interactions similar to other track systems. This paper presents a model to analyze the interaction between the QHT and the bridge. This model considers the longitudinal resistances of rail fasteners and anchors, as well as the interlayer friction between the track and the bridge. A sequential analysis method was applied to system

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4

Lang, Daniel, and Donald W. Radford. "Design Optimization of a Composite Rail Vehicle Anchor Bracket." Urban Rail Transit 7, no. 2 (2021): 84–100. http://dx.doi.org/10.1007/s40864-021-00144-9.

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AbstractThe rail transportation sector is currently seeking to decrease greenhouse gas emissions by incorporating composite materials that can reduce the mass of vehicles. During early adoption of composites in the rail transportation industry, these materials have predominantly been applied to simple design geometries and lightly loaded structures, have been optimized only through modification of composite thickness and composite layer shape, and have only been constrained with respect to a single mechanical performance metric. This study investigates the use of finite element analysis softwa

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Govorukha, V. V., V. K. Kizilov, T. P. Sobko, and L. P. Semidetnaia. "Forming of anchor intermediate rail fastening of innovative technical level." Geo-Technical mechanics, no. 140 (2018): 130–42. http://dx.doi.org/10.15407/geotm2018.03.130.

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6

Ma, Chi, Guo Nan Liu, and Yue Ying Liang. "The Application of Anchor Block in Large Soft Foundation Pit Excavation." Applied Mechanics and Materials 170-173 (May 2012): 520–24. http://dx.doi.org/10.4028/www.scientific.net/amm.170-173.520.

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Based on pit excavation of Shenzhen Airport Rail transport hub project, combined with anchorage stress characteristics, difficulties was studied and numerical calculation for the envelope structure was undertaken. The successful application of design provides new ideas, improved design methods for super soft soil foundation engineering, which can greatly promote the application and development of anchor block in soft foundation excavation.

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Li, Hong Xia, Yong Wei Wang, and Gao Kui Fang. "Double-Row Composite Anchor Bolt Design and Construction Monitoring Analysis of Green Building." Applied Mechanics and Materials 580-583 (July 2014): 596–600. http://dx.doi.org/10.4028/www.scientific.net/amm.580-583.596.

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Zhengzhou East Green high-speed rail block D6 site supporting of deep foundation pit engineering, double row pile composite retaining structure design and data analysis. Through specific examples of projects, based on the measured data shows that support form of the rationality and practicality.

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8

Choi, Jungyoul, and Byungmin Kim. "Failure analysis of anchor bolt of rail fastening system for direct fixation track." Engineering Failure Analysis 112 (May 2020): 104513. http://dx.doi.org/10.1016/j.engfailanal.2020.104513.

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9

Faller, Ronald K., Dean L. Sicking, Karla A. Polivka, John R. Rohde, and Bob W. Bielenberg. "Long-Span Guardrail System for Culvert Applications." Transportation Research Record: Journal of the Transportation Research Board 1720, no. 1 (2000): 19–29. http://dx.doi.org/10.3141/1720-03.

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A long-span guardrail for use over low-fill culverts was developed and successfully crash tested. The guardrail system was configured with 30.48 m of nested, 12-gauge W-beam rail and centered around a 7.62-m-long unsupported span. The nested W-beam rail was supported by 16 W152×13.4 steel posts and 6 standard CRT posts, each with two 150-mm×200×360 mm wood block-outs. Each post was 1830 mm long. Post spacings were 1905 mm on center, except for the 7.62-m spacing between the two CRT posts surrounding the long span. The research study included computer simulation modeling with Barrier VII and fu

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Sicking, Dean L., John D. Reid, and John R. Rohde. "Development of a Sequential Kinking Terminal for W-Beam Guardrails." Transportation Research Record: Journal of the Transportation Research Board 1647, no. 1 (1998): 89–96. http://dx.doi.org/10.3141/1647-11.

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A new tangent energy-absorbing W-beam guardrail terminal that meets NCHRP Report 350 criteria has been developed. The terminal, designated the SKT-350, dissipates the energy of an encroaching vehicle by producing a series of plastic hinges in the W-beam as the terminal head is pushed down the guardrail. This energy-absorption concept allows for significantly lower dynamic forces on the encroaching vehicle, reducing the vehicle damage, the weight of the terminal head, the propensity for vehicle yaw and roll after impact, and the chances of buckling in the W-beam section. The energy required to

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11

Yang, Dan. "Extraction of Unit Pulse Response Function Based on Sparse RBF Network Applied in Rail Anchor Screw." Journal of Information and Computational Science 12, no. 16 (2015): 5933–45. http://dx.doi.org/10.12733/jics20106849.

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12

Coppo, Marco, Claudio Dongiovanni, and Claudio Negri. "Numerical Analysis and Experimental Investigation of a Common Rail-Type Diesel Injector." Journal of Engineering for Gas Turbines and Power 126, no. 4 (2004): 874–85. http://dx.doi.org/10.1115/1.1787502.

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A production common rail-type injector has been investigated via numerical simulation and experimentation. The functioning principle of the injector has been carefully analyzed so as to obtain a mathematical model of the device. A zero-dimensional approach has been used for modeling the injector, thus considering the variables as function of time only. The analysis of the hydraulic part of the injector resulted in the definition of an equivalent hydraulic scheme, on which basis both the equations of continuity in chambers and flow through nozzles were written. The connecting pipe between commo

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13

Fomin, Oleksij, Juraj Gerlici, Alyona Lovska, et al. "Durability Determination of the Bearing Structure of an Open Freight Wagon Body Made of Round Pipes during its Transportation on the Railway Ferry." Communications - Scientific letters of the University of Zilina 21, no. 1 (2019): 28–34. http://dx.doi.org/10.26552/com.c.2019.1.28-34.

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In order to reduce the cost of designing and manufacturing of the new-generation open wagons, it is proposed to construct their carrying systems from round pipes. In order to exploit the proposed designs of wagons in international rail-water communication, it is assumed that they will be equipped with assemblies for fastening of chain binders. The maximal values of accelerations, as components of dynamic load acting on open wagons, made from round pipes during their transportation on a railway ferry, are determined. It is established that when moving the body in the vertical direction for a wa

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Ye, Qingwei, Yu Zhou, and Xiaodong Wang. "A Multi-Wave-Packets Decomposition Algorithm of Vibration Signal." Noise & Vibration Worldwide 42, no. 10 (2011): 3–8. http://dx.doi.org/10.1260/0957-4565.42.10.3.

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From the perspective of mechanic wave propagation, a new approach to decompose a vibration signal is proposed in this paper. Define a series wave-packet mode functions, think a vibration signal of the sensor correcting is many resonance wave-packets linear super-position after propagation, reflection, diffraction and dispersion. The multi-wave-packets mode decomposition algorithm of vibration signal mainly includes two parts, that is, wave-packet center detection and extraction of wave-packet parameters. Assume the resonance wave-packet center signal value is maximum in the local time-frame, e

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15

Zheng, Peng Fei, Gong Lian Dai, and Di Ping Li. "Study on Mechanical Properties of the Long Span Cable-Stayed Bridge with Three Main Trusses and Three Cable Planes." Advanced Materials Research 163-167 (December 2010): 511–19. http://dx.doi.org/10.4028/www.scientific.net/amr.163-167.511.

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Tianxingzhou cable-stayed bridge firstly adopts the innovative structure which is composed of three main trusses and three cable planes, and its mechanical properties are different from those of the traditional structure with double main trusses and double main planes. In this paper, based on the study about the cable tension distributed properties of the completed bridge with three cable planes, and through comparing analysis on the bridge with three main trusses and that with double main trusses, the mechanical properties of the bridge with three main trusses and three main planes were inves

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16

Yang, Yushun, Zhiming Fang, Guangying Ji, Baigao Zhao, and Sijiang Wei. "Study on Mechanical Properties and Control Technology of Surrounding Rock in the Fracture Zone of a Roadway." Shock and Vibration 2021 (January 11, 2021): 1–14. http://dx.doi.org/10.1155/2021/6628593.

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We aim at the problem of the large deformation and difficult control of surrounding rock when passing through a fault fracture zone in the centralized rail transportation lane along the south wing of Xinyi Coal Mine; the stress environment and failure mechanism of surrounding rock are analyzed through field investigation, numerical simulation, and field industrial test. The instability of the surrounding rock in the fault fracture zone was considered to be the result of the joint effect of the surrounding rock fracture development, lithology differences, water gushing occurrences, low strength

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17

Garcia-R, Juan C., Emily Moriarty Lemmon, Alan R. Lemmon, and Nigel French. "Phylogenomic Reconstruction Sheds Light on New Relationships and Timescale of Rails (Aves: Rallidae) Evolution." Diversity 12, no. 2 (2020): 70. http://dx.doi.org/10.3390/d12020070.

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The integration of state-of-the-art molecular techniques and analyses, together with a broad taxonomic sampling, can provide new insights into bird interrelationships and divergence. Despite their evolutionary significance, the relationships among several rail lineages remain unresolved as does the general timescale of rail evolution. Here, we disentangle the deep phylogenetic structure of rails using anchored phylogenomics. We analysed a set of 393 loci from 63 species, representing approximately 40% of the extant familial diversity. Our phylogenomic analyses reconstruct the phylogeny of rail

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18

Gaffran, P., D. C. Sego, and A. E. Peterson. "Performance of an anchored sheet pile wall on the CN Rail line, Boston Bar, British Columbia." Canadian Geotechnical Journal 29, no. 1 (1992): 31–38. http://dx.doi.org/10.1139/t92-004.

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The performance of a 6 m high anchored steel sheet pile retaining wall, constructed to allow CN Rail to twin its main-line track, is presented. The instruments installed gave measurement of the load and its variation along the tieback anchors; the distribution of the strain along the height of the wall which allowed an earth-pressure distribution to be postulated; and the lateral deflection of the wall. The earth-pressure distributions, inferred from the field measurements, were adequately predicted using the Terzaghi and Peck recommendation coupled with the Boussinesq procedure to account for

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19

Liu, Wen Tsung, Hong Yuan Tsai, and Ming He Tu. "Numerical Analysis of the Ground Anchor and Row Piles in Mudstone Dip Slope." Applied Mechanics and Materials 204-208 (October 2012): 703–7. http://dx.doi.org/10.4028/www.scientific.net/amm.204-208.703.

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It is a dip slope with mudstone and sandstone interbedded at the northward 363K National Highway NO.3. in Taiwan. The Figure 1 showed the slope sliding due to continuous heavy rain on August 19, 2010. This study analyses the slope stability by the finite element method of program PLAXIS-2D, and explores the suitability of various control engineering methods. It is named analysis before design with anchors in this study before September 2010. The aim is to search the original parameters of the ground by comparing a potential sliding surface with monitor data of site. Then countermeasure analyze

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20

Kish, Andrew, and Gopal Samavedam. "Improved Destressing of Continuous Welded Rail for Better Management of Rail Neutral Temperature." Transportation Research Record: Journal of the Transportation Research Board 1916, no. 1 (2005): 56–65. http://dx.doi.org/10.1177/0361198105191600109.

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Maintaining high, stable rail neutral temperatures helps prevent the buckling of continuous welded rail (CWR) track. Rail neutral temperatures are typically set high during installation (90°F to 110°F), but the large variations that develop during revenue service often lead to buckling-prone conditions. Readjusting or correcting for these variations requires CWR to be destressed with the use of procedures that do not always restore the desired target neutral temperature. As part of the Federal Railroad Administration's Track Systems Research program, the U.S. Department of Transportation's Vol

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21

Harrison, John A., Thomas R. Cooper, Lina Lawrence, Bryan Williams, Charity Duran Ketchum, and John Sleavin. "Integration of Light Rail on the I-90 Floating Bridge across Lake Washington." Transportation Research Record: Journal of the Transportation Research Board 2607, no. 1 (2017): 74–81. http://dx.doi.org/10.3141/2607-10.

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Installing light rail transit across a floating roadway bridge presents many unique challenges, foremost of which is how to design the multidimensional moving joints at both ends of transition spans between the fixed and floating structures. A technical solution to this technical challenge has been proposed, analyzed, modeled, designed, and prototype tested in the context of the East Link Extension, a light rail transit project being carried out by Central Puget Sound Regional Transit Authority (Sound Transit). Described are the planning, execution, and results of a full-scale prototype testin

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Abbyad, Paul, Rémi Dangla, Antigoni Alexandrou, and Charles N. Baroud. "Rails and anchors: guiding and trapping droplet microreactors in two dimensions." Lab Chip 11, no. 5 (2011): 813–21. http://dx.doi.org/10.1039/c0lc00104j.

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23

Fradet, Etienne, Craig McDougall, Paul Abbyad, Rémi Dangla, David McGloin, and Charles N. Baroud. "Combining rails and anchors with laser forcing for selective manipulation within 2D droplet arrays." Lab on a Chip 11, no. 24 (2011): 4228. http://dx.doi.org/10.1039/c1lc20541b.

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24

Fukui, Rui, Kenta Kawae, Yuta Kato, and Masayuki Nakao. "Rail Structure Supporting Mechanism Using Foamable Resin for Pillar Expansion, Anchoring, and Fixation." Journal of Robotics and Mechatronics 28, no. 2 (2016): 129–37. http://dx.doi.org/10.20965/jrm.2016.p0129.

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[abstFig src='/00280002/03.jpg' width=""300"" text='Rail structure supporting mechanism' ]Human workforce working at the Fukushima Daiichi Nuclear Power Plant face severe health and safety risks owing to the presence of radioactive obstacles and debris caused by the accident and the subsequent shutdown of the plant. Under such circumstances, various robots are deployed to undertake many tasks, however, it is not easy for robots to realize smooth locomotion and efficient operation because radioactive debris and architectural structures such as steps and doors tend to hinder their movement. In a

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Caprolu, Giuseppe, Ulf Arne Girhammar, Bo Källsner, and Helena Lidelöw. "Splitting capacity of bottom rail in partially anchored timber frame shear walls with single-sided sheathing." IES Journal Part A: Civil & Structural Engineering 7, no. 2 (2014): 83–105. http://dx.doi.org/10.1080/19373260.2014.898558.

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Juglea, S., Y. Kerr, A. Mialon, E. Lopez-Baeza, D. Braithwaite, and K. Hsu. "Soil moisture modelling of a SMOS pixel: interest of using the PERSIANN database over the Valencia Anchor Station." Hydrology and Earth System Sciences 14, no. 8 (2010): 1509–25. http://dx.doi.org/10.5194/hess-14-1509-2010.

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Abstract. In the framework of Soil Moisture and Ocean Salinity (SMOS) Calibration/Validation (Cal/Val) activities, this study addresses the use of the PERSIANN-CCS1database in hydrological applications to accurately simulate a whole SMOS pixel by representing the spatial and temporal heterogeneity of the soil moisture fields over a wide area (50×50 km2). The study focuses on the Valencia Anchor Station (VAS) experimental site, in Spain, which is one of the main SMOS Cal/Val sites in Europe. A faithful representation of the soil moisture distribution at SMOS pixel scale (50×50 km2) requires an

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Chicherin, Stanislav, Lyazzat Junussova, and Timur Junussov. "The hydro-seeding and concrete anchors as a method for preventing damage to district heating network by local landslides." E3S Web of Conferences 140 (2019): 05014. http://dx.doi.org/10.1051/e3sconf/201914005014.

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To prevent rain from eroding the sides of the trench we have developed a method of spraying them with hydro-seed. The homemade solution contains water, soil, mulch and a special blend of local grass seed. The mixture containing the blend of seeds enhances the soil to give it some strength and minimize the erosion. Another option is using concrete anchors instead of steel ones, which are supposed to increase the rigidity of a district heating (DH) network. The paper further visualizes the process with the materials required for each step. We constructed the equation in order to estimate net pre

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HAYASHI, Taketo, Masahiro SHINODA, Keigo AZUNO, et al. "PROBALILISTIC RISK ASSESSMENT OF MULTI-ANCHORED REINFORCED SOIL WALL AFFECTED BY RAIN FALL." Geosynthetics Engineering Journal 34 (2019): 49–52. http://dx.doi.org/10.5030/jcigsjournal.34.49.

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Juglea, S., Y. Kerr, A. Mialon, E. Lopez-Baeza, D. Braithwaite, and K. Hsu. "Evaluation of PERSIANN database in the framework of SMOS Calibration/Validation activities over Valencia Anchor Station." Hydrology and Earth System Sciences Discussions 7, no. 1 (2010): 1143–66. http://dx.doi.org/10.5194/hessd-7-1143-2010.

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Abstract. Soil moisture is a key parameter for land surface water resource and climate change monitoring. ESA's Soil Moisture and Ocean Salinity (SMOS) mission will deliver, as one of its main goals, global fields of surface soil moisture with an accuracy better than 0.04 m3 m−3. SMOS relies on an L-band (1.4 GHz) interferometric radiometer. Within the context of the preparation for this mission over land, the Valencia Anchor Station (VAS) experimental site, in Spain, was selected to be one of the main test sites in Europe for the SMOS Calibration/Validation (Cal/Val) activities. This study pr

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Lau, K. M., H. T. Wu, Y. C. Sud, and G. K. Walker. "Effects of Cloud Microphysics on Tropical Atmospheric Hydrologic Processes and Intraseasonal Variability." Journal of Climate 18, no. 22 (2005): 4731–51. http://dx.doi.org/10.1175/jcli3561.1.

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Abstract The sensitivity of tropical atmospheric hydrologic processes to cloud microphysics is investigated using the NASA Goddard Earth Observing System (GEOS) general circulation model (GCM). Results show that a faster autoconversion rate leads to (a) enhanced deep convection in the climatological convective zones anchored to tropical land regions; (b) more warm rain, but less cloud over oceanic regions; and (c) an increased convective-to-stratiform rain ratio over the entire Tropics. Fewer clouds enhance longwave cooling and reduce shortwave heating in the upper troposphere, while more warm

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Cantu, Rafael Ricardo, Silvia Renata Siciliano Wilcken, Juliana Magrinelli Osório Rosa, and Rumy Goto. "Reação de porta-enxertos comerciais de tomateiro a Meloidogyne mayaguensis." Summa Phytopathologica 35, no. 3 (2009): 216–18. http://dx.doi.org/10.1590/s0100-54052009000300009.

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O objetivo do presente trabalho foi verificar a resistência ao nematóide Meloidogyne mayaguensis em oito porta-enxertos de tomateiro considerados resistentes à Meloidogyne incognita, M. javanica e M. arenaria, comercializados no Brasil. Os porta-enxertos testados foram: 'Guardião', 'Helper-M', 'Anchor-T', 'Dr. K', 'Kagemuscha', 'TMA 809', 'Magnet' e 'He-Man'. O experimento constou de 9 tratamentos (8 porta-enxertos e a cultivar Rutgers utilizada como padrão de suscetibilidade), com 6 repetições, sendo cada parcela constituída por 1 planta por vaso, mantidas em casa de vegetação. As plantas for

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Elman, Cheryl, Kathryn Feltey, Barbara Wittman, and Daniela Jauk. "Drawn to the Land." Social Science History 37, no. 1 (2013): 27–69. http://dx.doi.org/10.1017/s0145553200010567.

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We introduce a life course, multimethod approach to examine the living arrangements of middle-aged and older American Indian and European women living on the rugged North Dakotan settlement frontier around 1910. Our model suggests that women’s later life circumstances reflect the long arm of institutional forces and their ethnicity/nativity, which anchors resource advantages and disadvantages (access to land, rail, and markets) and confers gender socialization (norms and practices) that reproduce gendered social roles. Drawing from primary and secondary sources, we find that European and Ameri

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Perfil'ev, Pavel, Ol'ga Murashova, and Natalya Zadrauskayte. "DETERMINING THE INCREASE OF THE POWER SUPPLY OF THE PILED PIER THROUGH THE USE OF DRIVEN ANCHOR." Forestry Engineering Journal 10, no. 2 (2020): 134–41. http://dx.doi.org/10.34220/issn.2222-7962/2020.2/13.

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The forest industry in the Russian Federation is actively developing. At the same time, technological and production equipment is being modernized, and timber supply chains are being optimized. A large number of timber industry enterprises have increased the volume of transportation of round timber by water modes of transport, in particular, in rafts in the North-West Federal District of the Russian Federation in recent years. Pile piers are used to prevent "drying" of rafts and fastening of forest transport units in a riverbed. In the case when the enterprise’s raid is at the mouth of the riv

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Pariyar, S., F. Jakob, L. Apitius, U. Schwaneberg, M. Hunsche, and G. Noga. "Anchor peptides as innovative adjuvants reduce rain wash-off, but do not impair photosynthetic activity or cause oxidative damage in apple leaves." Acta Horticulturae, no. 1292 (October 2020): 175–80. http://dx.doi.org/10.17660/actahortic.2020.1292.23.

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Bosma, Christopher D., Daniel B. Wright, Phu Nguyen, James P. Kossin, Derrick C. Herndon, and J. Marshall Shepherd. "An Intuitive Metric to Quantify and Communicate Tropical Cyclone Rainfall Hazard." Bulletin of the American Meteorological Society 101, no. 2 (2020): E206—E220. http://dx.doi.org/10.1175/bams-d-19-0075.1.

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Abstract Recent tropical cyclones (TCs) have highlighted the hazards that TC rainfall poses to human life and property. These hazards are not adequately conveyed by the commonly used Saffir–Simpson scale. Additionally, while recurrence intervals (or, their inverse, annual exceedance probabilities) are sometimes used in the popular media to convey the magnitude and likelihood of extreme rainfall and floods, these concepts are often misunderstood by the public and have important statistical limitations. We introduce an alternative metric—the extreme rain multiplier (ERM), which expresses TC rain

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Vendel, Ana Lúcia, Henry Louis Spach, Sabine Granado Lopes, and César Santos. "Structure and Dynamics of Fish Assemblages in a Tidal Creek Environment." Brazilian Archives of Biology and Technology 45, no. 3 (2002): 365–73. http://dx.doi.org/10.1590/s1516-89132002000300015.

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Studies were carried out on structure and dynamics of fish assemblages in the Baguaçu tidal creek, Paranaguá Bay, Brazil. A total of 30,104 fish were captured, comprising 21 families and 47 species. Both in weight and in number, the species Anchoa parva prevailed. Monthly captures in number and weight were largest in the autumn and part of the winter. No seasonal tendency was observed in the indexes of community structure. The dendrogram produced by the classification of the samples separated the 12 months of collection into three groups, reflecting differences in the qualitative and quantitat

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Caprolu, Giuseppe, Ulf Arne Girhammar, and Bo Källsner. "Splitting capacity of bottom rails in partially anchored timber frame shear walls with double-sided sheathing." IES Journal Part A: Civil & Structural Engineering 8, no. 1 (2014): 1–23. http://dx.doi.org/10.1080/19373260.2014.952607.

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Zhou, Zi Long, Xi Bing Li, Ke Wei Liu, and Yang Zou. "Stability Evaluation of Chenmenshan Open-Pit by SURPAC and MIDAS." Advanced Materials Research 168-170 (December 2010): 2426–29. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.2426.

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Chengmenshan open pit has been constructed to be the biggest copper pit in China. The slope designed with empirical rock mass rating and engineering analogy needs reinvestigation and evaluation for its overall stability. With help of SURPAC, the topographic contour of the mine was converted into surface model. Then the geological information of the mine was embedded into the numerical solid model by NURBS treatment of the core loggings. Through overall stability analysis with MIDAS, it was found that there was no obvious failure in the pit with the current design. But the major principal stres

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Christiansen, Niels H., Per Erlend Torbergsen Voie, Ole Winther, and Jan Høgsberg. "Comparison of Neural Network Error Measures for Simulation of Slender Marine Structures." Journal of Applied Mathematics 2014 (2014): 1–11. http://dx.doi.org/10.1155/2014/759834.

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Training of an artificial neural network (ANN) adjusts the internal weights of the network in order to minimize a predefined error measure. This error measure is given by an error function. Several different error functions are suggested in the literature. However, the far most common measure for regression is the mean square error. This paper looks into the possibility of improving the performance of neural networks by selecting or defining error functions that are tailor-made for a specific objective. A neural network trained to simulate tension forces in an anchor chain on a floating offsho

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Tang, Wei, Xincheng Xie, Yukang Ye, and Weiwei Qu. "Design of a Fast Temporary Fastener with the Labor-Saving and Reversible Ability." Coatings 11, no. 9 (2021): 1101. http://dx.doi.org/10.3390/coatings11091101.

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Aircraft panel assembly mainly includes the pre-joining process and the riveting process. In addition, the traditional pre-joining process is mainly executed by bolts, which has problems such as the large tightening torque, inconvenient bilateral tightening, heavy workload, and inconvenient loading and unloading. To solve the above-mentioned problems, a research of new temporary fastener is performed deeply from three levels of quick installation, labor-saving, and reversible ability. This involves (a) employing the lever mechanism and the rapid expansion anchor to implement the rapid clamping

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Shi, Guangcheng, Gongkai Gu, Hua Zhou, et al. "Stability Monitoring and Analysis of High and Steep Slope of a Hydropower Station." Geofluids 2020 (September 11, 2020): 1–16. http://dx.doi.org/10.1155/2020/8840269.

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Slope deformation and failure are major challenges for hydropower station engineering. Taking the left bank slope at the exit of the flood discharge tunnel of the Wudongde Hydropower Station in China as an example, the deformation mechanism of the high-steep rock slope was studied. The height of the slope is about 200 m, which is affected by slope excavation, rainfall, and atomized rain. The results of multipoint displacement meters, surface deformation monitoring, and anchoring stress meters showed that the deformation and deformation rate of the slope have increased dramatically. Through the

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Gentry, T. Russell, and Lawrence C. Bank. "Finite-Element Modeling and Model Verification of Steel W-Beam Guardrails Subject to Pendulum Impact Loading." Transportation Research Record: Journal of the Transportation Research Board 1647, no. 1 (1998): 147–57. http://dx.doi.org/10.3141/1647-18.

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The experimental and simulated response of steel W-beam guards to pendulum impact loading for impact velocities of 20 km/h, 30 km/h, and 35 km/h are presented. The guardrails were supported by four posts and cable-anchored at each end to ensure that the full tension capacity of the rail could be developed. Experiments carried out with a 912-kg impact pendulum are compared with LS-DYNA finite-element simulations of the impact events. Pendulum tests were completed at the Turner Fairbank Highway Research Center of the Federal Highway Administration. Acceleration, velocity, and displacement time h

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O’Neill, Larry W., Tracy Haack, Dudley B. Chelton, and Eric Skyllingstad. "The Gulf Stream Convergence Zone in the Time-Mean Winds." Journal of the Atmospheric Sciences 74, no. 7 (2017): 2383–412. http://dx.doi.org/10.1175/jas-d-16-0213.1.

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Abstract The distribution of surface divergence in the northwest Atlantic is investigated using 10 years of satellite wind observations from QuikSCAT and a 1-yr simulation from the COAMPS atmospheric model. A band of time-mean surface convergence overlies the Gulf Stream [called here the Gulf Stream convergence zone (GSCZ)] and has been attributed previously to a local boundary layer response to Gulf Stream SST gradients. However, this analysis shows that the GSCZ results mainly from the aggregate impacts of strong convergence anomalies associated with storms propagating along the storm track,

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Sasaki, Yoshi N., S. Minobe, T. Asai, and M. Inatsu. "Influence of the Kuroshio in the East China Sea on the Early Summer (Baiu) Rain." Journal of Climate 25, no. 19 (2012): 6627–45. http://dx.doi.org/10.1175/jcli-d-11-00727.1.

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Abstract Influence of the Kuroshio in the East China Sea on the baiu rainband is examined using satellite observations, a reanalysis dataset, and a regional atmospheric model from 2003 to 2008. Satellite observations and reanalysis data reveal that precipitation over the Kuroshio is the highest in early summer (June), when the baiu rainband covers the East China Sea. The high rainfall is collocated with the warm sea surface temperature (SST) tongue of the Kuroshio. This locally enhanced precipitation is embedded in the large-scale baiu rainband, so that the amplitude of precipitation over the

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Schulz, M. "Elastic creep in serpentine belt drives and adopting a suitable strain measure." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 218, no. 12 (2004): 1421–33. http://dx.doi.org/10.1243/0954406042690515.

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The paper deals with the transient dynamics of serpentine belt drives. A model for the rotational motion that has been proposed in the literature is extended to elastic belt creep. However, unlike previous articles, this paper adopts a logarithmic strain measure to describe elastic creep. A condition for the existence of steady state motions with constant belt tensions, as a solution of the mass conservation law, is derived. This condition is violated for the linear strain measure together with Hooke's law, whereas it holds for the logarithmic strain measure. As a consequence, only the logarit

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McKinnon, Colin D., Kayla M. Fewster, C. R. Dickerson, and Jack P. Callaghan. "Evaluation of Fiberglass and Aluminum Ladder Stability During a Simulated Tethered Operator Fall Event." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 63, no. 1 (2019): 1797–801. http://dx.doi.org/10.1177/1071181319631449.

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Ladder-related falls are common in many industries and lead to high rates of injury and hospitalization. This study aimed to establish safety criteria for ladder stability and potential for failure in the event of an operator fall when equipped with a fall arrest system that has been attached to the ladder as opposed to a fixed structure anchor point. All combinations of five variables were tested in a custom-built load drop apparatus: ground surface, leaning surface, force direction, operator tether method, and ladder type. Overall, all conditions tested in this investigation with a simulated

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Caprolu, Giuseppe, Ulf Arne Girhammar, and Bo Källsner. "Analytical models for splitting capacity of bottom rails in partially anchored timber frame shear walls based on fracture mechanics." Wood Material Science & Engineering 12, no. 3 (2015): 165–88. http://dx.doi.org/10.1080/17480272.2015.1075228.

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Mezzi, Marco, Gianluca Nestovito, Paolo Petrella, and Vincenzo Cefaliello. "Innovative Suspended Superstructure for the Retrofitting of a Steel Truss Railway Bridge." Key Engineering Materials 763 (February 2018): 1121–28. http://dx.doi.org/10.4028/www.scientific.net/kem.763.1121.

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The bridge in Poggio Renatico crossing the Reno river on the railway line between Bologna and Ferrara, consists of steel decks supported by masonry abutments and piers, while foundations and pier caps are made of reinforced concrete. After the 2012 Emilia Earthquake and accounting for the fluvial erosion below the piers foundations, a structural assessment of the bridge was carried out in accordance with to the current Italian rules. Although a sufficient structure capacity against the actual transit loads resulted, the bridge showed some inadequacies with respect to the load models provided b

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Jeng, Ching-Jiang, and Dar-Zen Sue. "Characteristics of ground motion and threshold values for colluvium slope displacement induced by heavy rainfall: a case study in northern Taiwan." Natural Hazards and Earth System Sciences 16, no. 6 (2016): 1309–21. http://dx.doi.org/10.5194/nhess-16-1309-2016.

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Abstract. The Huafan University campus is located in the Ta-lun Shan area in northern Taiwan, which is characterized by a dip slope covered by colluvium soil of various depths. For slope disaster prevention, a monitoring system was constructed that consisted of inclinometers, tiltmeters, crack gages, groundwater level observation wells, settlement and displacement observation marks, rebar strain gages, concrete strain gages, and rain gages. The monitoring data derived from hundreds of settlement and displacement observation marks were analyzed and compared with the displacement recorded by inc

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Nomura, M., Z. Zou, T. Joh, Y. Takihara, Y. Matsuda, and K. Shimada. "Genomic Structures and Characterization of Rael Family Members Encoding GPI-Anchored Cell Surface Proteins and Expressed Predominantly in Embryonic Mouse Brain." Journal of Biochemistry 120, no. 5 (1996): 987–95. http://dx.doi.org/10.1093/oxfordjournals.jbchem.a021517.

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