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Relevant bibliographies by topics / Spring

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Academic literature on the topic 'Spring'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 June 2025

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Journal articles on the topic "Spring"

1

Carlowicz, Michael. "Spring sprung earlier." Eos, Transactions American Geophysical Union 78, no. 17 (1997): 174. http://dx.doi.org/10.1029/97eo00117.

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Wich, Scott. "Spring Has Sprung." Management Report for Nonunion Organizations 46, no. 5 (2023): 3–4. http://dx.doi.org/10.1002/mare.30957.

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De Coster, Annabel. "Spring has officially sprung." British Journal of Community Nursing 22, no. 4 (2017): 161. http://dx.doi.org/10.12968/bjcn.2017.22.4.161.

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Adams, Tony. "For OVS, Spring Has Sprung." Optometry and Vision Science 91, no. 4 (2014): 369. http://dx.doi.org/10.1097/opx.0000000000000240.

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Muralidharan, M., R. Aravinth, J. Gafferkhan, and R. Gandhi. "Comparative Design and Analysis of Helical and Wave Spring." International Journal of Engineering & Technology 7, no. 3.34 (2018): 353. http://dx.doi.org/10.14419/ijet.v7i3.34.19224.

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This paper is a comparative between two springs such as helical and wave spring. Wave springs are precise flat wire compression springs that fit into assemblies that other springs cannot. These are used as an alternative spring for helical spring. Wave springs provide 50% reduction in spring height and axial space. They possess the same force and deflection as coil springs. They have reduced material requirements. They provide improved cost reduction. The Wave Spring has been subjected to Compression Test, Modal Analysis and Equivalent Elastic Strain Test and then compared to Helical Spring which again was subjected to the above same tests under the same conditions and parameters. The design of helical spring and wave spring has been done in CREO Parametric 4.0 and analysed in ANSYS R 18.1. The results are then compared.

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Fernado, Gito Jandio, and Widya Prarikeslan. "Pemetaan Distribusi Sumber Air di Jalur Pendakian Gunung Tandikek via Nagari Singgalang." Al-DYAS 3, no. 1 (2024): 540–53. http://dx.doi.org/10.58578/aldyas.v3i1.2772.

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This research was carried out on Mount Tandikek with the aim of mapping the distribution of water sources along the Mount Tandikek climbing route via the Singgalang village and determining the quality of the water. The method used is the spring coordinate plotting method, for water quality using quality standards PERMENKES no. 492 of 2010. The results of the research found 4 springs along the route. Spring 1is at the start of the climb, spring 2 is located near shelter 3, spring 3 is not far from spring 2, and spring 4 is around the peak of Mount Tandikek. Water quality is based on the parameters tested, water color parameters 1, 2, and 3 are suitable, while spring 4 is not suitable. The odor parameters of springs 1, 2, and 3 are suitable, while spring 4 is no suitable. The turbidity parameters are suitable for all spring sources. The taste parameters of springs 1, 2, and 3 are suitable, while spring 4 is not suitable. The pH parameters of springs 1, 2, and 3 are suitablem while spring 4 is not suitable. And sulfate parameters for all springs.

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NAGASE, Kazuo. "A Visit to Valuable Water Spring (20) KOBO Spring in HADANO Springs." Journal of Groundwater Hydrology 34, no. 4 (1992): 293–302. http://dx.doi.org/10.5917/jagh1987.34.293.

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Morse, Sarah. "Spring has sprung - PLE is blooming!" International Journal of Public Legal Education 3, no. 1 (2019): 1. http://dx.doi.org/10.19164/ijple.v3i1.831.

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Juang, Chia-Wei, Chi-Shiun Jhuang, and Dar-Zen Chen. "Spring efficiency assessment and efficient use of spring methods of statically balanced planar serial manipulators with revolute joints only." Mechanical Sciences 13, no. 2 (2022): 817–30. http://dx.doi.org/10.5194/ms-13-817-2022.

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Abstract. This paper proposes a spring efficiency assessment of a statically spring-balanced planar serial manipulator. The admissible spring configurations for the static balancing of planar serial manipulators without auxiliary links have been determined in the past. Gravity is balanced by the spring configuration systematically; however, the spring configuration also contains counter-effects between springs. Conceptually, with fewer counter-effects between springs, there is less burden on the spring system, which means that the springs are used more efficiently, and accordingly, the system would be safer, and its service life would be longer. In this study, the spring energy is represented in a quadratic form. The coefficients in a quadratic form represent the change in elastic energy with the relative position between links, which is named “elastic pseudo-stiffness”. Compared to the quadratic form of gravity energy, those elastic pseudo-stiffnesses for static balancing are regarded as positive contributions of a spring, while those that contain counter-effects are seen as negative ones. Spring efficiency is defined as the ratio of the elastic pseudo-stiffnesses, which has positive contributions for balancing to total elastic pseudo-stiffnesses. To use springs efficiently, the counter-effects, which are functions of spring parameters, need to be decreased, including spring stiffness and the attachment location of springs on links. A method to use spring efficiently by adjusting spring parameters is developed. Furthermore, it is found that, for a spring attached between adjacent links, the spring efficiency is 100 %, and the spring efficiency decreases while the number of joints over which the spring spans increases. In a spring manipulator system, the efficiency is negatively correlated to the payload. As an example, an efficiency assessment on a 3 degrees of freedom (DOF) manipulator is shown at the end.

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Fedin, Vladimir, Anvarjon Boymatov, Aleksandr Fimkin, and Sergey Korzhin. "COMPARATIVE PARAMETERS OF PRODUCING RAILWAY ROLLING STOCK COIL SPRINGS." Transport engineering 2024, no. 5 (2024): 50–55. http://dx.doi.org/10.30987/2782-5957-2024-5-50-55.

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The issues of ensuring stable quality of coil springs of passenger rolling stock and environmental cleanliness of the heat treatment are considered. As a solution, a new technology of intensive quenching cooling is proposed – volumetric water spraying of spring steels – 60X2HA, 60X2HFA, 51CrV4 using process water instead of oil as a quenching medium. A number of spring samples are experimentally studied, which have passed the proposed version of quenching cooling. It is found out that the quality indicators of the obtained springs meet the basic requirements of regulatory documents for the products. To implement the technological process of quenching cooling by volumetric water spraying, an experimental equipment has been developed that allows proceeding to the development of an industrial quenching cooling system.

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Dissertations / Theses on the topic "Spring"

1

Silverman, Taije 1974. "The spring before spring." College Park, Md. : University of Maryland, 2005. http://hdl.handle.net/1903/2502.

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Thesis (M.F.A.) -- University of Maryland, College Park, 2005.<br>Thesis research directed by: Dept. of English. Title from t.p. of PDF. Includes bibliographical references. Published by UMI Dissertation Services, Ann Arbor, Mich. Also available in paper.

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Paramasivam, Jithendra. "Awning Arm Folding Mechanism : FA-40 Series." Thesis, Högskolan i Halmstad, Maskinteknisk produktframtagning (MTEK), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-31074.

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The necessity to change the mechanism of the arm folding is to make a major difference in the field of Sun roofing systems and also to reduce the cost of the Awning system. The reduction of cost may help the market of the awning system to reach the Upper- Middle Class customers. In this project various technical solutions were investigated by simulation softwares and the data was taken into consideration. The best solution has been processed and investigated in depth with cost and material cost with high preference which cannot be exceeded when compared to today’s Awning arm folding solution. The best solution for replacing today’s mechanism is a torsion spring folding mechanism. The torsion spring has been designed and simulated using the SolidWorks simulation software. A virtual bench test of the Awning system has been created and designed using SolidWorks and the working mechanism has been tested virtually. The torsion spring’s data was calculated by using a spring dimension calculator. The spring data has been included in the bench test and the test simulation has been run by a virtual technique and then the result has been obtained by the virtual test bench. The torsion spring’s stress and strain analysis during maximum load on the Awning in an open condition has also been calculated for the study purpose of the spring stability and compared with the previous method of the awning system in order to calculate the factor of safety (FOS) equal or more stabilise for the environment as it has been used. The environmental condition is a main focus in this project. There are different types of weather conditions in Sweden. Customers may use the Awning during rainy weather. While it is raining the rain water are collected on top of the fabric. In order to withstand the weight of the water the arm of the awning should be strong. Hence the environmental condition is a main factor in this project with respective to speed of the wind. The economical manufacturing cost for the product and the replacement of the arm folding mechanism are mainly focused.

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Similä, Martin. "Development of Spring Wire Feeder : Design for Spring Manufacturing with Coarse Spring Wire." Thesis, Karlstads universitet, Institutionen för ingenjörsvetenskap och fysik (from 2013), 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-85468.

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Lesjöfors Fjädrar AB is a spring manufacturing company. At the start of each manufacturing process when manufacturing cold coiled compression springs, the operators manually feed the spring wire from a reel that contains the raw spring wire, into the machine where the springs are made. This is a demanding process for the operators. The largest diameter of the spring wire today is 18 mm. Lesjöfors Fjädrar AB wants to increase the diameter to 22 mm and needs a new construction that allows feeding coarser spring wire from the reel into the machine. Trips were made to the factory in Lesjöfors where interviews and observations were made. A survey was conducted to gather information about the current process, as well as ideas for a new construction. With the information gathered, a requirement specification was made and approved by Lesjöfors Fjädrar AB. A brainstorming meeting was held at Rejlers Sverige AB in Karlstad with experienced constructors. The concepts generated during the meeting together with concepts generated alone were combined and evaluated using eliminations matrices and relative decision matrices. The highest ranked concept secures the spring wire with a hook inside the reel and extracts the spring wire with the help of a lift system. The lift system consists of a ball screw and an electric motor. After extraction, the spring wire is secured by two rollers before it is fed towards the machine by the electric motor currently installed on the reel. Along the way to the machine, the spring wire is steered/aligned by two pipes. The final concept was modeled in Autodesk Inventor Professional 2018 where the concept was designed in more detail. A stress analysis was conducted as a final step in the design phase. The final construction withstands the forces from the spring wire and makes it possible for Lesjöfors Fjädrar AB to start manufacturing cold coiled compression springs with a diameter of 22 mm, following the new working sequence made in this project.<br>Lesjöfors Fjädrar AB är ett företag som tillverkar fjädrar. I början av tillverkningsprocessen av kallformade tryckfjädrar matar maskinoperatören fjädertråden manuellt från en haspel in i maskinen där fjädrarna tillverkas. Detta är ett påfrestande arbete för maskinoperatörerna. Den grövsta tråden som används idag är 18 mm i diameter. Lesjöfors Fjädrar AB vill öka diametern till 22 mm och behöver en ny konstruktion som gör det möjligt att mata den grövre fjädertråden till maskinen. Besök gjordes på fabriken i Lesjöfors där intervjuer och observationer gjordes. En enkät skapades för att samla information om den nuvarande processen samt idéer gällande den nya konstruktionen. Med den insamlade informationen skapades en kravspecifikation som godkändes av Lesjöfors Fjädrar AB. Ett konceptgenereringsmöte hölls på Rejlers Sverige AB i Karlstad med erfarna konstruktörer. Koncepten som genererades under mötet samt koncept som genererades enskilt kombinerades och utvärderades med hjälp av elimineringsmatriser och relativa beslutsmatriser. Det högst rankade konceptet säkrar fjädertråden med en krok inuti haspeln och lyfter den med hjälp av ett hissystem. Hissystemet består av en kulskruv och en elmotor. När fjädertråden är ute ur haspeln säkras den med två rullar innan den matas till maskinen av den nuvarande installerade elmotorn på haspeln. På vägen mot maskinen styrs fjädertråden rätt med två rör. Det slutgiltliga konceptet modellerades i Autodesk Inventor Professional 2018 där det konstruerades i detalj. En spänningsanalys gjordes som ett sista steg i konstrueringsfasen. Det slutgiltliga konceptet klarar av kraften från fjädertråden och gör det möjligt för Lesjöfors Fjädrar AB att börja tillverka kallformade tryckfjädrar med 22 mm i diameter när de följer den nya arbetsmetoden skapat i detta projekt.

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4

Bartlett, Sara. "Slow Spring." Digital Archive @ GSU, 2008. http://digitalarchive.gsu.edu/english_theses/38.

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This thesis is a collection of original poems. The poems found herein attempt to bridge a perceived gap between poet and audience by using clear, interesting language and relatable subject matters. The setting for many of these poems is New England, and travel between the American Northeast and the South is emphasized. The speakers in these poems often find themselves positioned between two contrasting worlds and attempt to negotiate between them. Consistent themes include travel, nature, generation, family, and growing up.

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Reed, Diane J. "Burning Spring." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin989426993.

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Fridlund, Andreas. "Power Press Spring." Thesis, Mälardalens högskola, Akademin för innovation, design och teknik, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:mdh:diva-20961.

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Fay, TH, and SD Graham. "Coupled spring equations." International Journal of Mathematical Education in Science and Technology, 2003. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000896.

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Coupled spring equations for modelling the motion of two springs with weights attached, hung in series from the ceiling are described. For the linear model using Hooke’s Law, the motion of each weight is described by a fourthorder linear differential equation. A nonlinear model is also described and damping and external forcing are considered. The model has many features that permit the meaningful introduction of many concepts including: accuracy of numerical algorithms, dependence on parameters and initial conditions, phase and synchronization, periodicity, beats, linear and nonlinear resonance, limit cycles, harmonic and subharmonic solutions. These solutions produce a wide variety of interesting motions and the model is suitable for study as a computer laboratory project in a beginning course on differential equations or as an individual or a small-groupundergraduate research project.

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Fay, TH. "Coupled spring equations." International Journal of Mathematical Education in Science and Technology, 2003. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001985.

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Summary Coupled spring equations for modelling the motion of two springs with weights attached, hung in series from the ceiling are described. For the linear model using Hooke’s Law, the motion of each weight is described by a fourthorder linear differential equation. A nonlinear model is also described and damping and external forcing are considered. The model has many features that permit the meaningful introduction of many concepts including: accuracy of numerical algorithms, dependence on parameters and initial conditions, phase and synchronization, periodicity, beats, linear and nonlinear resonance, limit cycles, harmonic and subharmonic solutions. These solutions produce a wide variety of interesting motions and the model is suitable for study as a computer laboratory project in a beginning course on differential equations or as an individual or a small-groupundergraduate research project.

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Childre, Mark Tilman. "Hydrogeologic controls on the occurrence and movement of groundwater discharged at Magic Springs in the Spring Branch Creek drainage basin| Spring Branch, Texas." Thesis, The University of Texas at San Antonio, 2013. http://pqdtopen.proquest.com/#viewpdf?dispub=1538300.

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<p> The hydrogeologic controls, flow velocities and paths, groundwater delineation, and physical characteristics in a joint controlled dendritic conduit-spring system have been characterized. The known conduit branches from C My Shovel (CM) Cave with 4475 meters (m) of measurable passages and tributaries. Surface entrance to CM Cave is located 1360 m upstream from discharge at Magic Springs. </p><p> Four storm events were measured characterizing the dynamics. The maximum discharge of these four events was 1.2 m<sup>3</sup>/s (41 ft<sup>3 </sup>/s) with 0.08 m<sup>3</sup>/s (3 ft<sup>3</sup>/s) baseflow conditions at Magic Springs. The characteristic shape and response of discharge are well defined with a rise time between 5.5 and 6.5 hours (hr). The half flow period time (t<sub>0.5</sub>) ranges between 12.9 and 15.7 hr, depending on peak discharge. The rise time and t0.5 occur in less than one day and the conduit volume exceeds 0.5 x 10<sup>6</sup> m<sup>3</sup>. The conduit-spring system drains within 3.7 to 7.5 days after the storm event. The thermal effects are event driven, maintaining 85% of the temperature change over 1300 m. The spring discharge has total dissolved solids around 350 mg/L and is chemically stable. </p><p> The field component of this study include a karst density survey, four dye traces, and continuous monitoring of specific conductance, pressure, temperature, water-level stage height, and discharge at Magic Springs and in the conduit below CM Cave. The general karst density survey identifies caves and dolines within given area. There is a sinking stream that transfers flow from Spring Branch Creek into the conduit system and two focused regions in a karst plain having densities of 20 and 44 karst features/0.16 km<sup> 2</sup>. </p><p> Hydrographs and chemographs show patterns interpreted as pulses of dilute water recharging through exposed caves, sinkholes, and sinking streams. These pulses have minimal reaction with the rock or matrix during recharge, which is superimposed on baseflow from the joint controlled dendritic conduit-spring system in this karst terrane. </p><p> The groundwater drainage basin has been defined. The dye tracing results identified groundwater piracy across surface water divides and helped define the groundwater drainage basin. Groundwater velocities were measured between 1800 m/d and 3000 m/d under baseflow conditions. The discharge at Magic Springs under these four storm events showed velocities between 8,700 and 15,120 m/d. </p><p> An autosampler and charcoal packets were both employed during dye tracing. Both detected fluorescence from all four injection sites. The measured velocities ranged between 1865 up to 2929 m/d under baseflow conditions. All dye trace tests were conducted under baseflow. Under baseflow conditions, dye was only traced to the Magic Springs locations from the eleven charcoal monitoring locations.</p>

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Chrisman, Susan. "An examination of spring water quality using Crystal Spring, Newark, Ohio /." Connect to resource, 1996. http://hdl.handle.net/1811/31760.

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Books on the topic "Spring"

1

Thorpe, Kiki. Spring has sprung! Simon Spotlight, 2000.

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Sudarmadji. Mata air: Perspektif hidrologis dan lingkungan. Sekolah Pascasarjana, Universitas Gadjah Mada, 2013.

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Matthews, Larry E. Tennessee Cave Survey Bulletin 2 Springs Of Middle Tennessee. Tennessee Cave Survey, 1997.

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Scarsbrook, Mike R. New Zealand coldwater springs and their biodiversity. Dept. of Conservation/Science and Technical Pub., 2007.

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Matthews, Larry E. Tennessee Cave Survey Bulletin 3 Springs Of East Tennessee. Tennessee Cave Survey, 2003.

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Baratti, Claudia. I fontanili: Una risorsa idrica e ambientale : tutela e gestione in Lomellina. Guerini e associati, 1999.

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Kurdov, A. G. Rodniki Voronezhskoĭ oblasti: Formirovanie, ėkologii︠a︡, okhrana. Izd-vo Voronezhskogo gosudarstvennogo universiteta, 2000.

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Best, B. J. Springs. Cavendish Square, 2018.

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Dorits, Anneliese. Spring, Anne, spring!: Erinnerungen. Universitas, 1994.

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Brylev, V. A. Rodniki i reki Volgogradskoĭ oblasti. Mikhail, 2007.

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Book chapters on the topic "Spring"

1

Gutierrez, Felipe. "Spring with Spring Boot." In Pro Spring Boot. Apress, 2016. http://dx.doi.org/10.1007/978-1-4842-1431-2_5.

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Seward, Anna. "Spring." In The Collected Poems of Anna Seward Volume 1. Routledge, 2015. http://dx.doi.org/10.4324/9781315642451-78.

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Watts, Ann. "Spring." In Outdoor Learning through the Seasons. Routledge, 2020. http://dx.doi.org/10.4324/9780429266720-8.

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Monks, Neale. "Spring." In Patrick Moore's Practical Astronomy Series. Springer New York, 2010. http://dx.doi.org/10.1007/978-1-4419-6851-7_3.

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Macleod, Joseph. "Spring." In People of Florence. Routledge, 2021. http://dx.doi.org/10.4324/9781003228691-16.

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Cohen, Ralph. "Spring." In The Unfolding of The Seasons. Routledge, 2021. http://dx.doi.org/10.4324/9781003244523-2.

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Oechsle, Rainer. "Spring." In Java-Komponenten. Carl Hanser Verlag GmbH & Co. KG, 2013. http://dx.doi.org/10.3139/9783446435919.014.

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Brown, Katherine T. "Spring." In Arboreal Symbolism in European Art, 1300–1800. Routledge, 2024. http://dx.doi.org/10.4324/9781003291435-6.

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Cosmina, Iuliana. "Spring Microservices with Spring Cloud." In Pivotal Certified Professional Spring Developer Exam. Apress, 2017. http://dx.doi.org/10.1007/978-1-4842-0811-3_8.

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Lui, Mark, Mario Gray, Andy Chan, and Josh Long. "Spring Integration and Spring Batch." In Pro Spring Integration. Apress, 2011. http://dx.doi.org/10.1007/978-1-4302-3346-6_17.

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Conference papers on the topic "Spring"

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Kim, Jae-Yong, Kyung-Ho Yoon, and Hyung-Kyu Kim. "Realistically Improved Finite Element Analysis of Spring Supports in a Nuclear Fuel Spacer Grid." In 16th International Conference on Nuclear Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/icone16-48957.

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The most important function of grid springs in a spacer grid is to position the fuel rods appropriately using a friction force and to prohibit the fuel rods from dropping during a normal reactor operation. While the fuel burn-up increases, spring force of grid springs decreases because the spring stiffness of grid springs is degraded by a high temperature and an irradiation effect in a reactor core. Therefore this phenomenon has to be reflected when the initial spring force of a grid spring is being designed. Usually, characterization tests of grid springs are conducted to verify designed grid springs have suitable spring forces. (Kim, 2007) FE model using a contact definition and rigid beam elements for a welding bead for predicting the spring stiffness without any spring test was established and verified in a previous research. In those days, two assumptions were used and the analysis for an unloading process was not included in spite of its importance for a spring design. In this paper, the fact that the assumptions have no effect on the analysis results is proven and a realistically improved FE analysis method using coupling constraints for a welding bead is suggested for investigating the spring’s characteristics under an in-grid boundary condition.

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Shopov, Antonio, Borislav Bonev, and Nikolay Brayanov. "Change of spring constant for springs with corrosion." In Fifth International Conference on Road and Rail Infrastructure. University of Zagreb Faculty of Civil Engineering, 2018. http://dx.doi.org/10.5592/co/cetra.2018.900.

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Barents, Rogier, Mark Schenk, Wouter D. van Dorsser, Boudewijn M. Wisse, and Just L. Herder. "Spring-to-Spring Balancing as Energy-Free Adjustment Method in Gravity Equilibrators." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86770.

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Generally, adjustment of gravity equilibrator to a new payload requires energy, e.g. to increase the pre-load of the balancing spring. A novel way of energy-free adjustment of gravity equilibrators is possible by introducing the concept of a storage spring. The storage spring supplies or stores the energy necessary to adjust the balancer spring of the gravity equilibrator. In essence the storage spring mechanism maintains a constant potential energy within the spring mechanism; energy is exchanged between the storage and balancer spring when needed. Various conceptual designs using both zero-free-length springs and regular extension springs are proposed. Two models were manufactured demonstrating the practical embodiments and functionality.

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Herder, Just L. "Conception of Balanced Spring Mechanisms." In ASME 1998 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/detc98/mech-5934.

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Abstract Statically balanced mechanisms are well known in various appearances of counterweighed beams, and systems where undesired mass is balanced by means of compensation springs. Similarly, springs can be designed to balance other springs. Besides the application of spring force compensation, many other kinds of mechanisms can benefit from the concept of balanced spring mechanisms. This paper introduces a lucid and logical methodology for the conception of statically balanced spring mechanisms. Based on constancy of system potential energy, a set of elementary rules is derived for the modification of a standard configuration with idealized springs. A number of examples are included to illustrate the versatility of the methodology, and to demonstrate the application potential of balanced spring mechanisms in general mechanical engineering.

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Krahn, Ava, and Susan Swanson. "AN EXPLORATION OF SPRING FLUXES TO CLASSIFY WISCONSIN’S SPRINGS." In GSA Annual Meeting in Seattle, Washington, USA - 2017. Geological Society of America, 2017. http://dx.doi.org/10.1130/abs/2017am-296829.

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Vivian, Robin, Jérôme Dinet, and David Bertolo. "Spring." In the 10th asia pacific conference. ACM Press, 2012. http://dx.doi.org/10.1145/2350046.2350097.

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Tewari, Anuj, Nitesh Goyal, Matthew K. Chan, Tina Yau, John Canny, and Ulrik Schroeder. "SPRING." In the 4th ACM/IEEE International Conference. ACM Press, 2010. http://dx.doi.org/10.1145/2369220.2369265.

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Johnson, Kristina T., and Rosalind W. Picard. "SPRING." In IDC '17: Interaction Design and Children. ACM, 2017. http://dx.doi.org/10.1145/3078072.3079718.

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Siddi, Francesco, and Andy Goralczyk. "Spring." In SA '19: SIGGRAPH Asia 2019. ACM, 2019. http://dx.doi.org/10.1145/3354919.3365081.

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Leitch, Brian W. "Deformation Behaviour of a Transversely Loaded Garter Spring." In ASME/JSME 2004 Pressure Vessels and Piping Conference. ASMEDC, 2004. http://dx.doi.org/10.1115/pvp2004-2746.

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The CANDU power generation system is based on a natural uranium fuelled reactor with a heavy water moderator. A unique feature of the CANDU reactor is the horizontal fuel channel that allows on-line re-fuelling and fuel management. Pressure tubes containing the fuel bundles and pressurized heavy water coolant are the in-core component of the fuel channel assemblies. Calandria tubes span the length of the reactor core and provide passageways for the pressure tubes through the reactor core. The calandria and pressure tubes are each approximately 6 meters long. The calandria tube separates the heavy water moderator (∼80°C) from the pressure tube (∼300°C). Both tubes are subjected to gravity loads but the pressure tube carries the additional load of the fuel bundles as well as experiencing high temperature and irradiation induced material effects. The pressure tube deflects under the combined loading and areas of the pressure tube could come into contact with the calandria tube. This contact would limit the operating efficiency and lifetime of the fuel channel. To maintain a gap between the pressure and calandria tubes, helical springs manufactured from rectangular cross-section wire are placed over the pressure tube. These helical springs are known as garter springs and four such springs are spaced along the pressure tube. Initially, there is no contact between the springs and the calandria tube, but as gravity forces and creep effects begin to act, the pressure tube sags and garter spring/calandria tube contact occurs. As the pressure tube continues to deform, a portion of the pressure tube weight, fuel and coolant is transmitted through the garter spring onto the calandria tube. The calandria tube, in turn, begins to deflect under the applied stresses. This creep deformation of the fuel channel takes place over many thousands of operating hours. Eventually, creep induces a permanent vertical deformation (sag) in the fuel channel. The sag of a fuel channel is an important factor in the operation of the structure and many methods are used to determine the general response of the pressure tube/calandria tube/garter spring system. These methods assume the garter spring is a rigid component. This paper specifically examines the garter spring behaviour with respect to the non-linear material and contact response between the pressure tube/garter spring/calandria tube components. A three dimensional (3-D) finite element solid model of the garter spring is used to determine the non-linear response of the helical garter spring to the transverse forces applied from 3-D shell finite element models of the pressure and calandria tubes. Comparison with experimental, crushing tests on garter springs illustrate the analytical model is well behaved. Applying the operating load to the 3-D model shows that the garter spring’s transverse deformation is small and that assuming the garter spring is a rigid component is valid.

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Reports on the topic "Spring"

1

McBride, Wendy, Dave Tacheeni Kesonie, and Emily Thorn. Spring wetland flora inventory ? Dinosaur National Monument: Survey report. National Park Service, 2024. http://dx.doi.org/10.36967/2301743.

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This report provides the results from the 2021 spring wetland flora inventory for the west side of Dinosaur National Monument in Utah. In total, seven National Park Service units within the Northern Colorado Plateau Network (NCPN) determined the need to evaluate and map spring and wetland condition based on the presence/absence of perennial obligate and facultative wetland plant species known to occur in the parks. Mapping spring and wetland areas for each park provides a baseline measure of areas sensitive to drying that can be used to monitor change over time. The overall objective of the project was to establish a baseline for the area and condition of wetlands, seeps, and springs to provide supporting evidence for any future claims of impairment resulting from groundwater management actions. Survey results at Dinosaur National Monument identified and inventoried springs at 26 of 58 survey sites. This report summarizes the results at the 26 sites, including spring type identification, dominant herbaceous plant species present, average plant cover, wildlife sign frequency and observation, and wetland feature map figures.

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McBride, Wendy, Dave Tacheeni Kesonie, and Emily Thorn. Spring wetland flora inventory ? Cedar Breaks National Monument: Survey report. National Park Service, 2024. http://dx.doi.org/10.36967/2302362.

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This report provides the results from the 2021 and 2022 spring wetland flora inventory at Cedar Breaks National Monument (CEBR). In total, seven National Park Service units within the Northern Colorado Plateau Network (NCPN) determined the need to evaluate and map spring and wetland condition based on the presence/absence of perennial obligate and facultative wetland plant species known to occur in the parks. Mapping spring and wetland areas for each park provides a baseline measure of areas sensitive to drying that can be used to monitor change over time. The overall objective of the project was to establish a baseline for the area and condition of wetlands, seeps, and springs to provide supporting evidence for any future claims of impairment resulting from groundwater management actions. Survey results at Cedar Breaks National Monument identified and inventoried springs at 15 of 22 survey sites. This report summarizes the results at the 15 sites, including spring type identification, dominant herbaceous plant species present, average plant cover, wildlife sign frequency and observation, and wetland feature map figures.

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McBride, Wendy, Dave Kesonie, and Emily Thorne. Spring wetland flora inventory ? Bryce Canyon National Park: Survey report. National Park Service, 2024. http://dx.doi.org/10.36967/2303819.

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This report provides the results from the 2021 and 2022 spring wetland flora inventory at Bryce Canyon National Park. In total, seven National Park Service units within the Northern Colorado Plateau Network determined the need to evaluate and map spring and wetland condition based on the presence/absence of perennial obligate and facultative wetland plant species known to occur in the parks. Mapping spring and wetland areas for each park provides a baseline measure of areas sensitive to drying that can be used to monitor change over time. The overall objective of the project was to establish a baseline for the area and condition of wetlands, seeps, and springs to provide supporting evidence for any future claims of impairment resulting from groundwater management actions. Survey results at Bryce Canyon National Park identified and inventoried springs and wetlands at 13 of 20 survey sites. This report summarizes the results at these 13 sites, including spring type identification, dominant herbaceous plant species present, average plant cover, wildlife sign frequency and observation, and wetland feature map figures.

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4

McBride, Wendy, Dave Kesonie, and Emily Thorn. Spring wetland flora inventory ? Dinosaur National Monument: Survey report (revised). National Park Service, 2024. http://dx.doi.org/10.36967/2303818.

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This report provides the results from the 2021 spring wetland flora inventory for the west side of Dinosaur National Monument in Utah. In total, seven National Park Service units within the Northern Colorado Plateau Network (NCPN) determined the need to evaluate and map spring and wetland condition based on the presence/absence of perennial obligate and facultative wetland plant species known to occur in the parks. Mapping spring and wetland areas for each park provides a baseline measure of areas sensitive to drying that can be used to monitor change over time. The overall objective of the project was to establish a baseline for the area and condition of wetlands, seeps, and springs to provide supporting evidence for any future claims of impairment resulting from groundwater management actions. Survey results at Dinosaur National Monument identified and inventoried springs at 26 of 58 survey sites. This report summarizes the results at the 26 sites, including spring type identification, dominant herbaceous plant species present, average plant cover, wildlife sign frequency and observation, and wetland feature map figures.

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5

McBride, Wendy, Dave Kesonie, and Emily Thorn. Spring wetland flora inventory ? Capitol Reef National Park: Survey report. National Park Service, 2024. http://dx.doi.org/10.36967/2304381.

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This report provides the results from the 2021 spring wetland flora inventory for Capitol Reef National Park (CARE). In total, seven National Park Service units within the Northern Colorado Plateau Network (NCPN) determined the need to evaluate and map spring and wetland condition based on the presence/absence of perennial obligate and facultative wetland plant species known to occur in the parks. Mapping spring and wetland areas for each park provides a baseline measure of areas sensitive to drying that can be used to monitor change over time. The overall objective of the project was to establish a baseline for the area and condition of wetlands, seeps, and springs to provide supporting evidence for any future claims of impairment resulting from groundwater management actions. Survey results at Capitol Reef National Park identified and inventoried 18 seeps/springs/hanging gardens at 31 survey sites. This report summarizes the results at the 18 sites, including spring type identification, dominant herbaceous plant species present, average plant cover, wildlife sign frequency and observation, and wetland feature map figures.

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McBride, Wendy, Dave Kesonie, Emily Thorn, Wendy McBride, Dave Kesonie, and Emily Thorn. Spring wetland flora inventory ? Black Canyon of the Gunnison National Park: Survey report. National Park Service, 2024. http://dx.doi.org/10.36967/2305021.

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This report provides the results from the 2021 spring wetland flora inventory at Black Canyon of the Gunnison National Park. In total, seven National Park Service units within the Northern Colorado Plateau Network determined the need to evaluate and map spring and wetland conditions based on the presence/absence of perennial obligate and facultative wetland plant species known to occur in the parks. Mapping spring and wetland areas for each park provides a baseline measure of areas sensitive to drying that can be used to monitor change over time. The overall objective of the project was to establish a baseline for the area and the condition of wetlands, seeps, and springs to provide supporting evidence for any future claims of impairment resulting from groundwater management actions. Survey results at Black Canyon of the Gunnison National Park identified and inventoried springs and wetlands at 4 of 20 survey sites. This report summarizes the results at these four sites, including spring type identification, dominant herbaceous plant species present, average plant cover, wildlife sign frequency and observation, and wetland feature map figures.

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7

Yoon, Hye Ri (Amy), and Matalie M. Howard. Dazzling Spring. Iowa State University, Digital Repository, 2014. http://dx.doi.org/10.31274/itaa_proceedings-180814-1090.

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Bunce, Lauren, Tim Lowenstein, and Elliot Jagniecki. Spring, River, and Lake Water Analyses from the Great Salt Lake Basin, Northern Utah. Utah Geological Survey, 2022. http://dx.doi.org/10.34191/ofr-745.

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The accompanying database is a compilation of major and minor ion chemistry data from spring, river, and lake water samples collected in and around Great Salt Lake (GSL), northern Utah. The purpose of this database is to provide an updated analysis of previously sampled spring, river, and lake water chemistries by Kirby and others (2019) (https://doi.org/10.34191/ofr-699) and to add additional locations and water chemistry of unsampled springs in the area around GSL to better understand solute load and groundwater contribution.

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NAVAL ACADEMY ANNAPOLIS MD. Electronics Industry, Spring 2008. Defense Technical Information Center, 2008. http://dx.doi.org/10.21236/ada486726.

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O'Leary, Timothy Sean. My Spring with Graphene. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1183958.

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