Relevant bibliographies by topics / Return spring

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Return spring'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Return spring"

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Zhao, Wen, and Victor Leonidovich Zhavner. "The use of pneumatic cylinders with a return spring to compensate for balance losses in mechanical regenerative drives for reciprocating movements." MATEC Web of Conferences 287 (2019): 01027. http://dx.doi.org/10.1051/matecconf/201928701027.

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Mechanical spring drives with energy recovery are designed to produce return-rotational movements in various technological equipment and reduce energy costs by several times compared with traditional electromechanical, hydraulic and pneumatic drives. The use of pneumatic motors in spring drives to compensate for dissipative losses, fixing the drive in extreme positions and the primary charging of spring batteries is considered. The class of tasks in which spring drives with energy recovery are created using only pneumatic cylinders with return springs is highlighted. This study examines mechanical spring drives with energy recovery, based on nonlinear spring batteries with spring preload in the middle position of the output link. The use of pneumatic actuators with return springs in mechanical drives based on linear spring batteries with two springs is proposed. Mechanical spring drives with energy recovery are designed to produce return-rotational movements in various technological equipment and reduce energy costs by several times compared with traditional electromechanical, hydraulic and pneumatic drives. The amount of energy expended in spring recuperative drives is actually determined by the energy expended on compensating for dissipative losses in kinematic pairs. The results of the study allow the designers of such drives to consciously approach the choice of their schemes and design parameters.
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Chuanchao, Yan, and Zhao Wen. "The use of pneumatic cylinders with return springs when creating mechanical drives with recuperative energy." MATEC Web of Conferences 287 (2019): 01028. http://dx.doi.org/10.1051/matecconf/201928701028.

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The use of pneumatic cylinders with return springs in mechanical drives with reusable energy for reusable and continuum movements, fixing the output link in the extreme positions are considered. A defined range of work operations can be used by these cylinders. The use of pneumatic actuators with return springs in mechanical drives based on linear spring batteries with two springs is proposed. Algorithms for compensating dissipative losses in mechanical spring drives are considered. The maximum mass values that can be moved by such mechanical drives for each size of the pneumatic cylinder are determined. It is proposed to use pneumatic cylinders with return springs in mechanical drives with energy recovery based on nonlinear spring batteries. A mechanical spring drive for unwinding rolls of packaging materials with discrete modes. In tasks of reciprocating movement of objects with a controlled stand in extreme positions, the reduction of energy costs is achieved when using mechanical spring drives with energy recovery. Energy costs can be reduced several times. Traditionally, a spring-loaded drive contains a linear or non-linear spring-loaded battery, a control system, controlled clips and a motor to compensate for dissipative losses. The use of electric motors to compensate for dissipative losses is also limited by low speed, as compensation for dissipative losses occurs throughout the displacement and with high speed increases engine power and requires transmission with a large gear ratio.
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Upadhyay, B. M., E. G. Smith, G. W. Clayton, K. N. Harker, J. T. O’Donovan, and R. E. Blackshaw. "Economic evaluation of seeding decisions in hybrid and open-pollinated herbicide-resistant canola (Brassica napus)." Canadian Journal of Plant Science 85, no. 4 (October 1, 2005): 761–69. http://dx.doi.org/10.4141/p04-135.

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Herbicide-resistant canola (Brassica napus) is widely cultivated in western Canada. Data from a multi-year field experiment conducted at three locations in Alberta were used to investigate the effect of canola cultivar, time of seeding, polymer seed coating (PSC) on profitability and the net return risk. Cultivars included hybrid and open pollinated. Time of seeding was early and late fall, and early and normal spring. The hybrid canola generally had higher mean net return than the open-pollinated cultivar. The probability of thin canola stand was higher for fall dormant seeding compared with spring seeding. The use of PSC for early fall dormant seeding reduced the likelihood of thin canola stand, which translated into risk-efficient decision. However, PSC use for late fall seeding had mixed results. Early and normal spring seeding was generally risk-efficient at all locations. In exceptional cases, net returns from late fall dormant seeding (with or without PSC) were similar to that of spring seeding. Re-seeding of fall seeded canola in the spring could be beneficial, if the plant density was below 20 plant m-2. Seeding decisions were robust across a wide range of canola prices, based on the probability of negative net returns. Key words: Canola, fall seeding, net returns, polymer seed coat, re-seeding, risk
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Jung, G. H. "Static Characteristics of Electro-Hydraulic Spring Return Actuator." Journal of Drive and Control 9, no. 2 (June 1, 2012): 8–14. http://dx.doi.org/10.7839/ksfc.2012.9.2.008.

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Xu, Yong Gang, and Qiang Wang. "Experimental Study on the Eligibility Percentage of Fuel WTD Valve Flow Test of X Engine." Advanced Materials Research 694-697 (May 2013): 526–31. http://dx.doi.org/10.4028/www.scientific.net/amr.694-697.526.

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Experimental study was made to raise the eligibility percentage of the fuel WTD valve flow test of X engine, thus advancing the reliability of fuel distribution of the WTD valve. The spring--valve housing matching test of this paper demonstrates that the eligibility percentage is dependent not only on the spring height, but also intimately on the geometrical regularity of gain slots and return holes. The height-variable spring--valve housing matching test of this paper testifies that the eligibility percentage of spring matching vs. height has the characteristic of normal distribution, with the pre-calculated height at the normal peak. Therefore, the spring design calculation method referenced in this paper is practicable and reliable. The valve flow test shows it is improper to decide whether a spring can be used or not just on one spring--one valve housing basis. A suitable way is to match one spring to at least two to three valve housings in order to raise productivity and application of reliable springs.
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Yu, Q., and H. P. Lee. "Influence of Cam Motions on the Dynamic Behavior of Return Springs." Journal of Mechanical Design 120, no. 2 (June 1, 1998): 305–10. http://dx.doi.org/10.1115/1.2826973.

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Based on the analytical solution of the equation of motion for a single degree-of-freedom model of a spring, the relation between the dynamic behavior and the kinematic features of input cam motions is discussed in this paper. A simple expression for the dynamic response spectrum of the vibration excited by the input motion is presented. It provides a useful tool to estimate the effect of cam motions on the dynamic behavior of springs. A method for the selection of cam motion curves based on this response spectrum is also presented in the paper. Examples are given to illustrate the method.
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Li, Zhanling, Zhanjie Li, Wei Zhao, and Yuehua Wang. "Probability Modeling of Precipitation Extremes over Two River Basins in Northwest of China." Advances in Meteorology 2015 (2015): 1–13. http://dx.doi.org/10.1155/2015/374127.

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This paper is focused on the probability modeling with a range of distribution models over two inland river basins in China, together with the estimations of return levels on various return periods. Both annual and seasonal maximum precipitations (MP) are investigated based on daily precipitation data at 13 stations from 1960 to 2010 in Heihe River and Shiyang River basins. Results show that GEV, Burr, and Weibull distributions provide the best fit to both annual and seasonal MP. Exponential and Pareto 2 distributions show the worst fit. The estimated return levels for spring MP show decreasing trends from the upper to the middle and then to the lower reaches totally speaking. Summer MP approximates to annual MP both in the quantity and in the spatial distributions. Autumn MP shows a little higher value in the estimated return levels than Spring MP, while keeping consistent with spring MP in the spatial distribution. It is also found that the estimated return levels for annual MP derived from various distributions differ by 22%, 36%, and 53% on average at 20-year, 50-year, and 100-year return periods, respectively.
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Pezzack, D. S., and D. R. Duggan. "Evidence of Migration and Homing of Lobsters (Homarus americanus) on the Scotian Shelf." Canadian Journal of Fisheries and Aquatic Sciences 43, no. 11 (November 1, 1986): 2206–11. http://dx.doi.org/10.1139/f86-270.

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In the Browns Bank region of the Scotian Shelf between June 1982 and December 1983, 6285 tagged lobsters (Homarus americanus) were released. Of the 2486 lobsters recaptured, 361 were recaptured more than once. Eight lobsters released in late May to mid-July were recaptured the following spring and summer, with at least one intervening recapture in the fall–winter period. Five of the eight lobsters showed homing tendencies. Two lobsters made long-distance (> 200 km) return migrations, three made short (50–100 km) return migrations, and three moved long distances but did not return. One lobster at large 6 mo and four at large 22–34 mo made long-distance return migrations, moving over 200 km and returning to within 9–42 km of the initial release site. The data indicate that some lobsters undertake long-distance return migration, which returns the lobsters to specific sections of the Shelf.
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Zhang, Jian, and Xiaohua Yang. "Prediction of the return period of drought in Panjiakou hydrological station by Peason-III probability distribution." Thermal Science 19, no. 4 (2015): 1365–68. http://dx.doi.org/10.2298/tsci1504365z.

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Peason-III probability distribution is chosen to simulate monthly average runoff of Panjiakou hydrological station, and calculate the minimum value of monthly average runoff at different return periods throughout March, April, May, and the whole spring. The results show that minimum value of monthly average runoff was 85.59, 62.04, 50.24, 40.74, 30.33, 23.55, and 17.46 m3/s when return periods were fixed at 2, 10, 20, 50, 100, and 200 years, respectively. In addition, the fitting results were credible by comparing the observed return periods. The return periods of monthly average runoff of Panjiakou hydrological station in March, April, May, and the whole spring of 2001 were 147.00, 254.07, 1.80, and 34.07 years, respectively.
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Lee, Chinuk, Munwon Lim, Chanjoong Kim, and Suk Joo Bae. "Reliability Analysis of Accelerated Destructive Degradation Testing Data for Bi-Functional DC Motor Systems." Applied Sciences 11, no. 6 (March 12, 2021): 2537. http://dx.doi.org/10.3390/app11062537.

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An accelerated degradation test (ADT) has become a popular method to accelerate degradation mechanisms by stressing products beyond their normal use conditions. The components of an automobile are degraded over time or cycle due to their constant exposure to friction or wear. Sometimes, the performance degradation can be measured only by destructive inspection such as operating torques of return-springs in a bi-functional DC motor system. Plastic deformation of the return-spring causes the degradation of actuating forces for shield movement, resulting in deterioration of the shield moving speed in a headlight system. We suggest a step-by-step procedure for a reliability analysis for a bi-functional DC motor in a headlight system, based mainly on accelerated destructive degradation test (ADDT) data. We also propose nonlinear degradation models to describe the ADDT data of the return-springs. Exposure effects of high temperatures on the return-springs are quantitatively modeled through the ADDT models. We compare the estimation results from both the closed-form expression and Monte Carlo simulation to predict the failure–time distribution at normal use conditions, showing that the lifetime estimation results from the closed-form formulation are more conservative.
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Dissertations / Theses on the topic "Return spring"

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Elmallakh, Nelly. "Gender, migration and the Arab Spring : evidence from Egypt." Thesis, Paris 1, 2017. http://www.theses.fr/2017PA01E027/document.

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Cette thèse contribue à la littérature sur les manifestations, la participation des femmes au marché du travail et la migration de retour. Le premier chapitre examine l’impact des manifestations égyptiennes de 2011 sur les conditions du marché du travail des femmes en utilisant des données en panel d’avant et d’après la révolution. En utilisant la méthode des doubles différences ainsi que des données sur les «martyrs» de la révolution égyptienne, les résultats suggèrent que les manifestations de 2011 ont réduit les écarts homme-femme en termes de participation au marché du travail au sein du ménage, à travers l’effet du travailleur additionnel. Le deuxième chapitre examine l’impact de la migration temporaire sur la mobilité professionnelle des migrants de retour vis-à-vis des non-migrants. En employant l’approche de variable instrumentale, des doubles différences et des doubles différences combinées avec la méthode d’appariement, les résultats mettent en avant un effet positif de la migration de retour sur la mobilité professionnelle et surtout, pour les migrants de retour les plus éduqués. Le troisième chapitre examine l’impact des première et deuxième vagues de manifestations égyptiennes sur les résultats électoraux durant les premières élections libres et compétitives égyptiennes. Le résultat principal est qu’une exposition élevée aux manifestations mène à un pourcentage de votes plus élevé pour les candidats de l’ancien régime durant les deux tours de scrutin. Les résultats mettent aussi en lumière que les manifestions ont eu des répercussions conservatrices, aux côtés de prévisions économiques négatives, de l’insatisfaction générale à l’égard de la performance du gouvernement, de la réduction des niveaux de confiance envers les institutions publiques et de la reconnaissance croissante des limitations aux libertés civiles et politiques
This thesis contributes to the literature on protests, women’s labor force participation and return migration. The first chapter examines the effects of the 2011 Egyptian protests on the relative labor market conditions of women using panel data from before and after the protests. Using Difference-in-Differences approach and a unique dataset on the Egyptian “martyrs", the results suggest that the 2011 protests have reduced intra-household differences in labor force participation between husband and wife, through an added-worker effect. The second chapter examines whether temporary international migration enables returnees to climb the occupational ladder compared to non-migrants. Using an instrumental variable approach, Difference-in-Differences and Difference-in-Differences matching techniques, the results suggest that return migration increases the probability of upward occupational mobility, in particular for returnees who belong to the upper end of the educational distribution. The third chapter examines the effects of the first and second waves of Egyptian protests, on voting outcomes during Egypt’s first free presidential elections. The main finding of this chapter is that higher exposure to protests’ intensity leads to a higher share of votes for former regime candidates, both during the first and second rounds of Egypt’s first presidential elections after the uprisings. Results also suggest that the protests led to a conservative backlash, alongside negative economic expectations, general dissatisfaction with government performance, decreasing levels of trust towards public institutions, and increasing recognition of limitations on civil and political liberties
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Subacz, Kimberly Byrd Stribling Harry Lee. "Impact assessment of a trap-neuter-return program on selected features of Auburn, Alabama feral cat colonies." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Forestry_and_Wildlife_Sciences/Thesis/Subacz_Kimberly_46.pdf.

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Veselý, Antonín. "Návrh řídicího algoritmu pro elektromechanický aktuátor s výrazným suchým třením." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2015. http://www.nusl.cz/ntk/nusl-232062.

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This work deals with identification of systems with high dry friction and/or return spring. Identified models are optimised by Parameter Estimation toolbox. Because friction and return spring have negative influence in control systems, models are used as compensators in control loop. Also effect of parameters variation is investigated in this paper.
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Leibach, Ronald. "Development of a Tunable Compliance Energy Return Actuator." Case Western Reserve University School of Graduate Studies / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=case1586543212369862.

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Šedivý, Jozef. "Řízení stejnosměrného bezkartáčového motoru za podmínek ztráty napájecího napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220902.

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Táto diplomová práca sa zaoberá implementáciou bezpečnostnej funkcie pre elektrický aktuátor, ktorá spočíva v riadení BLDC motora, po výpadku napájacieho napätia, keď je aktuátor poháňaný vstavanou pružinou.. Celé riadenie motora je navrhnuté v prostredí Matlab-Simulink technikou nazývanou návrh systému z modelu. Následne pomocou automatického generovania kódu bol získaný zdrojový kód, ktorý bol použitý v reálnom aktuátore a odtestovaný v reálnych podmienkach. Cieľom týchto testov bolo overiť reálnu možnosť nasadenia vyvinutých algoritmov v reálnych, komerčne dostupných produktoch.
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Mayes, Michael Sean Patrick. "Ankle Function Alterations Following Acute Ankle Sprains Over a 14 Day Period." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1398941731.

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Broström, Madeleine, and Emelie Larsson. "Klara, färdiga, generation Z : Akta så de inte springer ifrån er!" Thesis, Högskolan i Skövde, Institutionen för handel och företagande, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-18820.

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Bakgrund: Ett effektivt styrverktyg många organisationer använder sig av är belöningssystem, i syfte att motivera och behålla sina medarbetare. En ny generation, Generation Z är på väg att inta arbetsmarknaden, vilket innebär nya karaktärsdrag, egenskaper och attityder mot arbetet och arbetsplatsen. Det är således viktigt att organisationer tar hänsyn till Generation Zs styrkor och motivationsfaktorer, för att kunna styra och motivera dem till att uppnå organisationens mål och behålla dem i organisationen. Med omotiverade och missnöjda medarbetare kan organisationen öka sin personalomsättning, och därmed förlora viktig kunskap och kompetens, vilket utgör en stor kostnad för organisationen. En av de branscher svenska Generation Z kommer arbeta inom är bankbranschen och är den bransch den här studien har fokuserat på. Syfte: Studiens syfte är att bidra med en djupare kunskap och förståelse om vad som driver och motiverar svenska Generation Z i arbetslivet. Organisationer inom bankbranschen kan utifrån informationen i den här studien, utforma och anpassa sina belöningssystem för att på bästa sätt motivera Generation Z. Genom att lyckas med det, kan organisationer behålla Generation Z i företaget och därmed minska sin kostnad för personalomsättning. Teoretisk referensram: Studiens teori inleds med generationsteorin av Mannheim (1970) och en definition av Generation Z. Vidare presenteras två motivationsteorier: behovshierarkin av Maslow (1987) och tvåfaktorsteorin av Hertzberg et al. (1959), vilka underlättar förståelsen kring vad som skapar motivation. Avslutningsvis behandlas teorier om belöningssystem, finansiella och icke-finansiella belöningar. Metod: Studien utgår ifrån en fallstudiedesign som grundar sig på en kvantitativ enkätundersökning med individer som ingår i Generation Z och som studerade någon form av ekonomi på högskolenivå. Enkätundersökningen kompletterades med fyra kvalitativa intervjuer med individer inom Generation Z, som arbetade inom bankbranschen. De två insamlingsmetoderna utgjorde tillsammans en triangulering. Slutsatser: De faktorer som är mest motiverande i ett belöningssystem för Generation Z är de icke-finansiella belöningarna: karriärmässig utveckling, kompetensutveckling och inflytande över arbetsuppgifter. Dessutom ansågs anställningstrygghet, uppmärksamhet från chefer och bra relation till kollegor som viktiga parametrar för att stanna på en arbetsplats.
Background: To motivate and retain employees, reward systems are used in many organizations as an effective management tool. A new generation, Generation Z is about to enter the labor market, which means new traits, characteristics and attitudes towards work and the workplace. It is therefore important that organizations take Generations Z’s strengths and motivational factors into account, in order to guide and motivate them to achieve the organization’s goals and keep them in the organization. With unmotivated and dissatisfied employees, organizations can lose important skills and increase their labor turnover, which is a huge expense for organizations. One industry that Swedish Generation Z will be working within is the banking industry, which is the industry this study will focus on. Purpose: The purpose of the study is to contribute with a deeper knowledge and understanding of what motivates Swedish Generation Z in working life. Organizations within the banking industry can, based on the information in this study, design and adapt their reward systems in the most efficient way to motivate Generation Z. By succeeding in this, organizations can keep Generation Z in the company and thereby reduce their labor turnover to the better. Theory: The theory of the study starts with the generation theory by Mannheim (1970) and a definition of Generation Z. Furthermore, two motivation theories, the hierarchy of needs by Maslow (1987) and the two-factor theory by Hertzberg et al. (1959) which facilitates the understanding of what creates motivation. Finally, theories of reward systems, financial and non-financial rewards are discussed. Method: This study is based on a case study performed as a quantitative survey with individuals within Generation Z, who studied some form of economics at the university level. The survey was supplemented by four qualitative interviews with individuals within Generation Z, who worked in the banking industry. The two collection methods together constituted a triangulation. Conclusions: The factors that are the most motivating in a Generation Z reward system are the non-financial rewards: career development, skills development, and influence over tasks. In addition, job security, attention from managers and a good relationship with colleagues were considered important parameters for staying in a workplace.
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Janßen, Linda [Verfasser], Sebastian [Akademischer Betreuer] [Gutachter] Springer, Susanne [Gutachter] Illenberger, Hartmut [Gutachter] Hengel, and Matthias [Gutachter] Ullrich. "The murine cytomegalovirus immunoevasin gp40 binds to MHC class I molecules to retain them in the early secretory pathway / Linda Janßen ; Gutachter: Sebastian Springer, Susanne Illenberger, Hartmut Hengel, Matthias Ullrich ; Betreuer: Sebastian Springer." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2016. http://d-nb.info/1116080354/34.

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Ramnarayan, Venkat Raman [Verfasser], Sebastian [Akademischer Betreuer] Springer, Klaudia [Gutachter] Brix, and Marcus [Gutachter] Gröttrup. "Cytomegalovirus gp40/m152 uses TMED10 as ER anchor to retain MHC class I / Venkat Raman Ramnarayan ; Gutachter: Klaudia Brix, Marcus Gröttrup ; Betreuer: Sebastian Springer." Bremen : IRC-Library, Information Resource Center der Jacobs University Bremen, 2018. http://d-nb.info/1170955878/34.

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Fdili, Alaoui Sarah. "Analyse du geste dansé et retours visuels par modèles physiques : apport des qualités de mouvement à l'interaction avec le corps entier." Phd thesis, Université Paris Sud - Paris XI, 2012. http://tel.archives-ouvertes.fr/tel-00805519.

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La présente thèse a pour but d'approfondir l'étude du geste dans le cadre de l'interaction Homme Machine. Il s'agit de créer de nouveaux paradigmes d'interaction qui offrent à l'utilisateur de plus amples possibilités d'expression basées sur le geste. Un des vecteurs d'expression du geste, très rarement traité en Interaction Homme Machine, qui lui confère sa coloration et son aspect, est ce que les théoriciens et praticiens de la danse appellent " les qualités de mouvement ". Nous mettons à profit des collaborations avec le domaine de la danse pour étudier la notion de qualités de mouvement et l'intégrer à des paradigmes d'interaction gestuelle. Notre travail analyse les apports de l'intégration des qualités de mouvement comme modalité d'interaction, fournit les outils propices à l'élaboration de cette intégration (en termes de méthodes d'analyse, de visualisation et de contrôle gestuel), en développe et évalue certaines techniques d'interaction.Les contributions de la thèse se situent d'abord dans la formalisation de la notion de qualités de mouvement et l'évaluation de son intégration dans un dispositif interactif en termes d'expérience utilisateur. Sur le plan de la visualisation des qualités de mouvement, les travaux menés pendant la thèse ont permis de démontrer que les modèles physiques masses-ressorts offrent de grandes possibilités de simulation de comportements dynamiques et de contrôle en temps réel. Sur le plan de l'analyse, la thèse a permis de développer des approches novatrices de reconnaissance automatique des qualités de mouvement de l'utilisateur. Enfin, à partir des approches d'analyse et de visualisation des qualités de mouvement, la thèse a donné lieu à l'implémentation d'un ensemble de techniques d'interaction. Elle a appliqué et évalué ses techniques dans le contexte de la pédagogie de la danse et de la performance.
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Books on the topic "Return spring"

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Sommers, Nora J. The return of spring. Columbus, Ga: Brentwood Christian Press, 1989.

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Sessions, Graham. The return of spring. Altrincham: New Playwrights' Network, 1996.

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Reminick, Gerald. Return to our pond: Another year in the life of St. John's Pond : Cold Spring Harbor, Long Island, New York. El Cerrito: Palo Alto Books, 2012.

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Trapp, Jacob. Return to the springs: Essays and sermons on religious renewal. Boston: Skinner House Books, 1987.

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Hacen, Aymen. Le retour des assassins: Propos sur la Tunisie, janvier 2011-juillet 2012. Tunis: Sud Editions, 2012.

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Bergounioux, Pierre, writer of preface, ed. Le retour des assassins: Propos sur la Tunisie, janvier 2011-juillet 2012. Barre-des-Cévennes]: Le Bousquet-La Barthe éditions, 2013.

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Glover, Kent C. Leachate migration from an in-situ oil-shale retort near Rock Springs, Wyoming. [Washington, D.C.]: U.S. G.P.O., 1988.

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Glover, Kent C. Leachate migration from an in situ oil-shale retort near Rock Springs, Wyoming. Cheyenne, Wyo: Dept. of the Interior, U.S. Geological Survey, 1986.

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Kuhn, Gerhard. Methods to determine transit losses for return flows of transmountain water in Fountain Creek between Colorado Springs and the Arkansas River, Colorado. Denver, Colo: Dept. of the Interior, U.S. Geological Survey, 1988.

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Rgyal-ba-gʼyuṅ-druṅ. Dbra spraṅ Lho gliṅ Smar khams Gliṅ gi Bla mchod Khri chen Rgyal ba gʹyuṅ druṅ bstan ʼdzin gyi ʼkhrul snaṅ bar doʼi rnam thar: The return from death experiences of Bla-khri Rgyal-ba-gʼyuṅ-druṅ (1814-1871) written in 1862 at the behest of his disciples. Ochghat, Distt. Solan, H.P: Tashi Dorji, 1985.

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Book chapters on the topic "Return spring"

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Wang, Xiaoli, Shunan Liu, Liu Yang, and Dehai Wang. "Modeling Analysis and Simulation Research of Spring-Return Plunger Pump Based on AMESim." In Advances in Intelligent Systems and Computing, 232–37. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-43306-2_33.

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McMillan, M. E. "The Kings, the Colonels, and the Political Time Warp: The Return of the Middle Ages." In From the First World War to the Arab Spring, 153–65. New York: Palgrave Macmillan US, 2016. http://dx.doi.org/10.1057/9781137522023_17.

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Garrett, Steven L. "The Simple Harmonic Oscillator." In Understanding Acoustics, 59–131. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44787-8_2.

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Abstract This chapter will introduce a system that is fundamental to our understanding of more physical phenomena than any other. Although the “simple” harmonic oscillator seems to be only the combination of the most mundane components, the formalism developed to explain the behavior of a mass, spring, and damper is used to describe systems that range in size from atoms to oceans. Our investigation goes beyond the “traditional” treatments found in the elementary physics textbooks. For example, the introduction of damping will open a two-way street: a damping element (i.e., a mechanical resistance, Rm) will dissipate the oscillator’s energy, reducing the amplitudes of successive oscillations, but it will also connect the oscillator to the surrounding environment that will return thermal energy to the oscillator. The excitation of a harmonic oscillator by an externally applied force, displacement, or combination of the two will result in a response that is critically dependent upon the relationship between the frequency of excitation and the natural frequency of the oscillator and will introduce the critical concepts of mechanical impedance, resonance, and quality factor. Finally, the harmonic oscillator model will be extended to coupled oscillators that are represented by combinations of several masses and several springs.
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Khare, C. P. "Bridelia retusa (Linn.) Spreng." In Indian Medicinal Plants, 1. New York, NY: Springer New York, 2007. http://dx.doi.org/10.1007/978-0-387-70638-2_243.

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Marty, Wolfgang. "Return Analysis." In Springer Texts in Business and Economics, 5–87. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19812-5_2.

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Marty, Wolfgang. "Return Analysis." In Springer Texts in Business and Economics, 5–82. Cham: Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-03509-3_2.

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Ruppert, David. "Returns." In Springer Texts in Statistics, 75–99. New York, NY: Springer New York, 2004. http://dx.doi.org/10.1007/978-1-4419-6876-0_3.

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Hamilton, Bruce, Cristiano Eirale, and Hakim Chalabi. "Ankle Sprains: Optimizing Return to Activity." In Sports Injuries, 621–25. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-15630-4_84.

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Schlottmann, Frank, Detlef Seese, Michael Lesko, and Stephan Vorgrimler. "Risk-Return Analysis of Credit Portfolios." In Springer Finance, 259–78. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-06427-6_16.

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Burns, Alison. "The Mesolithic Footprints Retained in One Bed of the Former Saltmarshes at Formby Point, Sefton Coast, North West England." In Reading Prehistoric Human Tracks, 295–315. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-60406-6_16.

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AbstractIn the early Holocene period, extensive tracts of coastal land were submerged as the climate warmed and meltwaters flooded into the oceans. As the Irish Sea expanded, coastlines altered and large intertidal zones were created as tracts of low-lying land at the tidal margins were gradually submerged. In these areas, reed swamp and saltmarsh formed which, too, were inundated for varying periods of time. However, in the calmer warmer weather of the late spring and summer, birds and mammals were drawn on to the mudflats where they could feed on molluscs, or new reed and sedge shoots, wallow in the cooling mud, drink the brackish water or, for some predators, hunt. The behavioural tendencies of some species are revealed by their footprints which show their engagement within this environment – some breeds moved on to the marshes while others moved away. The humans who shared this landscape understood the opportunities offered by these predictable behaviours. Their trails run along and across those left by many species, leaving a visible network of human and animal activity preserved in the hardened mud. These will be described through an examination of the footprints recorded in three contexts which formed the stratigraphy of a Mesolithic bed at Formby Point in North West England. The persistent return to the mudflats by generations of people reflects an embodied knowledge of this coastal landscape, learnt in childhood and practiced in adulthood. The ability to modify movements in the landscape, to respond to the daily tides, the changing seasons and a fluctuating environment, all suggest a spatial-temporal relationship which not only encompassed a dynamic environment but also the other life that dwelt within it.
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Conference papers on the topic "Return spring"

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Chuang, Wu-Jen, Liang-Yuh Ou-Yang, and Wen-Chen Lo. "Dynamic Return-Volume Relation and Future Returns - Implication for Reducing Investing Risk." In 2009 International Association of Computer Science and Information Technology - Spring Conference. IEEE, 2009. http://dx.doi.org/10.1109/iacsit-sc.2009.37.

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Simmons, David E., Nidhi Bhargav, Justin P. Coon, and Simon L. Cotton. "Physical Layer Security over OFDM-Based Links: Conjugate-and-Return." In 2015 IEEE 81st Vehicular Technology Conference (VTC Spring). IEEE, 2015. http://dx.doi.org/10.1109/vtcspring.2015.7146015.

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Manz, Devon, and Wai Cheng. "On-Line Measurements of Engine Oil Aeration by X-Ray Absorption." In ASME 2006 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/ices2006-1356.

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The oil aeration in a V-6 spark-ignition passenger car engine under motoring condition was measured by the X-ray absorption method in the speed range of 2000–6000 rpm. Measurements were made at different locations in the sump representing the state of the oil at (1) the pump inlet, (2) the head return and (3) the timing chain return. The aeration of the block return was estimated from these measurements. At a fixed engine speed, the aeration (in % volume of air) of the head return and the chain return were about the same, and they were approximately twice the value found in the block return. This distribution did not change with engine speed. When weighted by the flow rate, however, the block flow contributed to 55% of the aeration at the pump inlet; the total contribution of the head return and the chain return was 45% (36% from head return and 9% from chain return). Further aeration observations were made by comparing the cases with and without the oil sump windage tray in place. When the tray was removed, aeration at the pump inlet was found to increase by less than 30% for all speeds.
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Chen, Yanhua, Houde Liu, Xueqian Wang, and Bin Liang. "2D Lobbing Characteristics of Touch Trigger Probes with Spring/Magnet Return Mechanism." In 2015 Fifth International Conference on Instrumentation & Measurement, Computer, Communication and Control (IMCCC). IEEE, 2015. http://dx.doi.org/10.1109/imccc.2015.358.

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Pastorelli, Stefano, Andrea Almondo, and Massimo Sorli. "Effects of Mechanical and Pneumatic Return Springs on Valve Train Dynamics." In ASME 8th Biennial Conference on Engineering Systems Design and Analysis. ASMEDC, 2006. http://dx.doi.org/10.1115/esda2006-95366.

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The dynamic analysis of a cam transmission derived from an engine valve train is performed in frequency and time domain, by means of a combined lumped-distributed parameters models, capable of predicting the effects of the higher harmonics of the cam lift profile on system performances, in particular as concerning the return spring device. Dynamic stiffness of the transmission in frequency domain and time history of contact force between cam and follower are evaluated, highlighting the limits of the transmission at high-speed camshaft operations caused by the spring behavior. The aim of the study is to developed a comparison on the performances of the cam mechanism working with the original mechanical spring from design or with a pneumatic return device based on a pneumatic spring and a pressure control circuit.
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Dronic A.A., A. A. "Resistance of cherry varieties to spring return frozes in the conditions of Astrakhan region." In Растениеводство и луговодство. Тимирязевская сельскохозяйственная академия, 2020. http://dx.doi.org/10.26897/978-5-9675-1762-4-2020-2.

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The article presents an assessment of the stability of introduced cherry varieties to spring return frosts in 2020 in the conditions of the sharply continental climate of the Astrakhan region. As a result of unfavorable weather conditions, the total damage score of all varieties was 2-5 points. Almost all the studied varieties showed an insufficient level of resistance to recurrent frosts.
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Zhang, Peng, Yunhua Li, Liman Yang, and Chao An. "Design and calculation of return mechanism of axial piston pump with centre-spring supporter." In 2015 IEEE 10th Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2015. http://dx.doi.org/10.1109/iciea.2015.7334287.

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Tropea, M., P. Fazio, and S. Marano. "A New Switching Scheme for DVB-RCS+M Return Link in a Land Based Scenario." In 2012 IEEE Vehicular Technology Conference (VTC 2012-Spring). IEEE, 2012. http://dx.doi.org/10.1109/vetecs.2012.6240291.

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Kim, Yeongjin, Shing Shin Cheng, Aleksandrs Ecins, Cornelia Fermüller, Kelly P. Westlake, and Jaydev P. Desai. "Towards a Robotic Hand Rehabilitation Exoskeleton for Stroke Therapy." In ASME 2014 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/dscc2014-6215.

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A majority of stroke patients suffer from the loss of effective motor function, which compromises their ability to control grasping motion. Hand rehabilitation is therefore important to improve their motor function and quality of life in activities of daily living (ADLs). In this initial work, we present the design and development of a partial hand exoskeleton actuated by shape memory alloy (SMA) spring actuators. The SMA spring actuators are cooled by forced convection and the individual joints of the finger are actuated via tendons. In this design, pre-tension in the passive springs enables the restoration of the original configuration when the SMA springs are not actuated. To address the slow cooling rate of SMA springs that limits the control performance, we developed a cooling unit for each SMA spring actuator. We utilized computer vision to identify an object and provide 3-D coordinates of the optimal grasping points on the object. We then utilized vision-based control to move the fingertips towards the grasping points. The experimental results showed that each individual joint was able to return to its original configuration significantly faster as well as to follow a sinusoidal trajectory with the proposed cooling strategy.
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Pournazeri, Mohammad, and Amir Khajepour. "A Robust Variable Valve Actuation System With Energy Recovery Mechanism." In ASME 2012 Internal Combustion Engine Division Spring Technical Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ices2012-81173.

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In this paper, a new hydraulic variable valve actuation system is proposed. Using this system, the engine valve opening and closing timings and lift are flexibly controlled with two rotary spool valves actuated by the engine crankshaft. High degree of flexibility with less control complexity and high repeatability are the advantages of this system over other camless valvetrains; however, in this system, there is a trade-off between its robustness and power consumption. A numerical model of the system is developed to study the system functionality at different operating conditions. To validate the developed model, the simulation results for a random operating condition are compared with those from the experiments. A sensitivity analysis is done to study the effects of variations in different design parameters on system robustness and power consumption. The results prove that increasing engine valve return-spring stiffness and actuator piston area will reduce the mechanism sensitivity to engine cycle-to-cycle variations; however, this results in poor energy efficiency. Therefore, a neat energy recovery strategy is developed to recuperate a portion of the energy used to compress the engine valve return-spring during valve opening interval. The results show that more than 90% of the extra energy wasted for the sake of system robustness could be regenerated through the proposed energy recovery system.
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Reports on the topic "Return spring"

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Zollman, Richard L., Russell Eschler, and Shawn Sealey. Grande Ronde Endemic Spring Chinook Salmon Supplementation Project; Lostine River Operations and Maintenance 2004 Smolt Acclimation and Adult Return Report. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/962207.

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Zollman, Richard L., Russell Eschler, and Shawn Sealey. Grande Ronde Endemic Spring Chinook Salmon Supplementation Project; Lostine River Operations and Maintenance 2006 Smolt Acclimation and Adult Return Report. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/962222.

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Zollman, Richard L., Russell Eschler, and Shawn Sealey. Grande Ronde Endemic Spring Chinook Salmon Supplementation Project; Lostine River Operations and Maintenance 2007 Smolt Acclimation and Adult Return Report. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/962223.

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Zollman, Richard L., Russell Eschler, and Shawn Sealey. Grande Ronde Endemic Spring Chinook Salmon Supplementation Project; Lostine River Operations and Maintenance 2003 Smolt Acclimation and Adult Return Report. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/962224.

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Leachate migration from an in-situ oil-shale retort near Rock Springs, Wyoming. US Geological Survey, 1988. http://dx.doi.org/10.3133/wsp2322.

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Methods to determine transit losses for return flows of transmountain water in Fountain Creek between Colorado Springs and the Arkansas River, Colorado. US Geological Survey, 1988. http://dx.doi.org/10.3133/wri874119.

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