Relevant bibliographies by topics / Reducera stress

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Academic literature on the topic 'Reducera stress'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Reducera stress"

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Hsieh, Chiu-Fan, and Wun-Si Jian. "The effect on dynamics of using various transmission designs for two-stage cycloidal speed reducers." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 230, no. 4 (November 29, 2015): 665–81. http://dx.doi.org/10.1177/0954406215618984.

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This paper investigates different transmission methods for a two-stage speed reducer by analyzing component motion and stress conditions during reducer operation. First, an exemplar (set) speed-reducing ratio is used to develop four differently structured two-stage speed reducers: a traditional design using two serially connected single-stage speed reducers, an Rotate Vector (RV) reducer constructed by serially connecting a cycloid speed reducer and an involute planet gear reducer, and two new concept designs. The first new concept named “New design 1” has a pin component in which a cam pair and pins connect two-stage cycloidal gears having different tooth numbers. The second new concept named “New design 2” has a center disc component in which a cam pair symmetrically connects two-stage cycloid gears with different tooth numbers. These four structural types of two-stage speed reducer form the basis for a system dynamics analysis model used to analyze the main components’ motion and stress variation conditions. Besides, this study also carries out the cycloid internal gear (nonpinwheel design) to replace the pinwheel in these four-structured two-stage speed reducers. The results highlight the differences and shortcomings of the four transmissions with pinwheel and nonpinwheel designs, including the dynamic load imbalance and stress peaks phenomena caused by design inadequacies.
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Lenz, Thomas L. "Herbal Supplements for Stress." American Journal of Lifestyle Medicine 5, no. 6 (September 2, 2011): 497–99. http://dx.doi.org/10.1177/1559827611418171.

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Many herbal products are currently being marketed to the public as having a positive effect on stress reduction. Little research has been conducted on these products that provide health care professionals with the information they need to advise their patients on safety and effectiveness. This brief review looks at the available data on some of the most popular herbal supplements that are marketed as stress reducers. Many of these herbal products can cause a sedative effect. Therefore, health care professionals must caution their patients who concomitantly take a prescribed medication that causes central nervous system depression as well as those who drink alcohol with a herbal stress reducer due to a potential added sedative effect.
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Tsai, Y. T., and K. H. Lin. "Structural Stress Analysis and Reliability Evaluation for a New Speed Reducer." Journal of Mechanics 33, no. 5 (September 13, 2016): 631–40. http://dx.doi.org/10.1017/jmech.2016.96.

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AbstractReducers are extensively used in many machines for reducing the speeds of mechanism. This paper proposed a new design of speed reducers to meet the performance requirements in high rigidness and large speed-reduction ratios. The movements of the reducer are designed based on the principles of differential displacements of the deceleration gear rings. The geometric models of the related components were designed using CAD software. The motions of mechanism were simulated for identifying the feasibility of designing including acquiring the kinematic properties. The mathematical models of structural stresses analysis were proposed so that the bending and contact stresses of the gear rings could be evaluated, accordingly. Finite element methods (FEM) were also used to analyze the structural stresses of the reducer. The studied results showed that the bending fracture of the gear rings would prior to its contacting fracture. The allowable loading of the reducer was then established according to the analyzed results of the maximum stresses on various transmitted torques. The methods of reliability evaluation were reported for considering the strength variation and calculating the reliabilities of the reducer at various loadings. The studied results are useful in structural design, stress analysis and reliability evaluation for developing high speed-reduction mechanisms.
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Huang, Jian, Chaoyang Li, and Bingkui Chen. "Optimization Design of RV Reducer Crankshaft Bearing." Applied Sciences 10, no. 18 (September 18, 2020): 6520. http://dx.doi.org/10.3390/app10186520.

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The crankshaft bearing is the key component of a rotate vector (RV) reducer. However, owing to the harsh working load and restricted available space, the bearing often suffers from fatigue failure. Therefore, this study proposes a novel optimization method for RV reducer crankshaft bearings. A nonlinear constraint optimization model for the design of the bearing considering the crowned roller profile is formulated and is solved by using a crow search algorithm. The goal of the optimization is to maximize the fatigue life of the bearing. The design variables corresponding to the bearing geometry and crowned roller profile are considered. The load working conditions of the bearing and structure of the RV reducer are analyzed. Various constraints, including geometry, lubrication, strength of the bearing, and structure of the RV reducer, are established. Through the optimization design, the optimum crowned roller profile suitable for the working load of the bearing is obtained, and the stress concentration between the roller and raceway is eliminated. Taking the crankshaft bearing of RV-20E and RV-110E type reducers as examples, the bearings were optimized by the proposed method. After optimization, the bearing life of the RV-20E type reducer is increased by 196%, and the bearing life of the RV-110E type reducer is increased by 168%.
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Cojocaru, Vasile, Zoltan Iosif Korka, and Calin Octavian Miclosina. "Stress Analysis and Optimal Design of the Housing of a Two-Stage Gear Reducer." Applied Mechanics and Materials 658 (October 2014): 183–88. http://dx.doi.org/10.4028/www.scientific.net/amm.658.183.

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The design of the housings of the gear reducers is made, usually, using empirical equations based on the center distance (the distance between shafts). These equations can lead to inappropriate stresses distribution and inadequate material consumption at the final product. In the manufacturing of large series and in the manufacturing of the gear reducers/ gearboxes with large dimensions it is necessary an optimization of the housing dimensions. The use of the finite element analysis in this process, combined with experimental researches, can generate significant improvements. The paper is focused on the analysis of stresses distribution and displacements on the housing of a two-stage helical gear reducer with parametric dimensions and loads. The housing is subjected to a static finite element study. The optimization process aimed to minimize the total weight of the housing. The next features were submitted to dimensional changes: the thickness of the housing walls and the thickness of the ribs. The results presented as diagrams of stresses and displacements distributions show real opportunities to reduce the total weight of the housing and the material consumption.
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Zhang, Jingzi, Jin’ge Wang, and Kai Wang. "Design and manufacture of the novel drum worm pair." Science Progress 103, no. 4 (October 2020): 003685042098122. http://dx.doi.org/10.1177/0036850420981220.

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Although a significant amount of research on robot joint reducer was conducted, there are few systematic investigations on a novel joint reducer adopting inner worm-gear plane enveloping drum worm drive. To satisfy the development of modular robot joint, the primary objective of this paper was to systematically investigate the drum worm drive adopted in the novel joint reducer with integrated structure of drive, transmission, and support in the following aspects: meshing theory, design, analysis, and manufacture. According to the gear meshing theory, mechanical design method, classical mechanics, finite element method, and machining principle of virtual center distance, the systematic investigations around the drum worm pair applied in the novel joint reducer were conducted including the macro and micro meshing theory, structure design, mechanical and contact properties analyses, and manufacturing method. The novel joint reducer’s integrated structure was designed, and the drum worm pair’s mechanical and contact properties analyses were conducted, which showed: (1) the worm’s bending stress and deflection, worm-gear teeth’s shear stress and bending stress as well as the maximum contact stresses were all below their corresponding allowable values; (2) the maximum contact stresses appeared at the engage-in position of the worm pair opposing to the engaging-out position where the largest contact areas appeared. Then the manufacturing of drum worm’s spiral tooth was conducted via the modified 4-axis linkage CNC grinder according to the conjugate motion. Finally the novel joint reducer’s industrial prototype was assembled. The novel joint reducer with integrated structure of drive, transmission and support was designed and manufactured for the first time. The flowchart of design and manufacture of the reducer’s drum worm pair in this process was formulated, which provides a new insight on the research of joint reducers as well as other fields.
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Yu, Yang, En Zhu, Xiaoyang Chen, and Yang Wang. "Load analysis and deformation research of the flexible bearing based on a three-force ring superposition method." Mechanics & Industry 22 (2021): 34. http://dx.doi.org/10.1051/meca/2021030.

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The flexible bearing is a key component of harmonic reducer enabling the flexspline to generate a controllable elastic deformation. Its performance and life will significantly affect the normal operation of harmonic reducer. In order to improve the life and the working performance of the flexible bearing, the calculation of its load distribution is necessary. Based on the theory of thin-walled ring, the relationship between radial deformation and load of three-force ring was derived. Then a superposition model of three-force ring was developed to calculate rapidly the load distribution of flexible bearings with elliptical cams in harmonic reducers. The validity of the proposed model was proved by comparing with a static analysis model. In this paper, the influences of ball number and external load on the load distribution, radial deformation and bending normal stress of outer ring were investigated by three-force ring superposition method. Based on the deformation of three-force ring, the deformation characteristics and bending normal stress distribution of outer ring of the flexible bearing were analyzed, and several regular results were found.
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Kalaivani, Mrs S., and Dr (Mrs) D. Karaline Karunagari. "Yoga as a Stress Reducer." International Journal of Trend in Scientific Research and Development Volume-2, Issue-3 (April 30, 2018): 1936–38. http://dx.doi.org/10.31142/ijtsrd11396.

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Chalah, Kaci, Abdelbaki Benmounah, and Khaled Benyounes. "Effect of anionic polyelectrolytes on the flow of activated sodium bentonite drilling mud." MATEC Web of Conferences 149 (2018): 01082. http://dx.doi.org/10.1051/matecconf/201814901082.

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Bentonite is often used in water-based drilling fluids. The xanthan gum is widely used as to increase the viscosity of the bentonite suspension. For the stabilization of the drilled layers, we use filtrate reducers: sodium carboxymethylcellulose low viscosity and cellulose polyanionic low viscosity. The objective of this work is to explain the effect of the polymers on the rheological behavior of the 5% bentonite suspensions. These results will provide practical recommendations for the rational use of different types of additives in water-based drilling muds. Our work is based on rheological trials on a viscometer. The results obtained on the bentonite 5%-xanthane suspension show a rheofluidifying behavior with yield stress conform to the Herschel-bulckly modal. While increasing the concentration of filtrate reducer decreases the yield stress and reduces the viscosity. The effect of CMC LV is more pronounced than PAC L.
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Zhang, Jing, and Fei Wang. "Finite Element Analysis of Temperature Filed and Stress Field of Reducer." Advanced Materials Research 881-883 (January 2014): 1447–50. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1447.

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Abstract.The connection mode of reducer with straight tube on both sides are the welding connection. There are two weld at the both side of reducer and there has a great influence on residual stress and deformation in the process of welding . Based on the particularity of reducer welding, the paper is focus on the residual stress and deformation in the process of welding, using large-scale finite element analysis software ANSYS .The DN500X450 reducer model is established.The welding temperature field and residual stress field is analysis and calculation and analysis the influence on temperature and stress distribution of reducer. The results show that the maximum of the temperature and the residual stress is located in the big side and reduce the welding seam, and the obvious deformation also find in the big side and reduce joint . The reducing pipe’s distribution of temperature field and residual stress field are obtained,providing the basis to establish properly and optimize of welding process.
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Dissertations / Theses on the topic "Reducera stress"

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Ekberg, Jessica, and Malin Hald. "Kan specialpedagogisk handledning reducera stress för pedagoger?" Thesis, Högskolan Kristianstad, Sektionen för lärande och miljö, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-10548.

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Syftet med följande arbete är att belysa vilka copingstrategier pedagoger i förskolan och grundskolan har för att hantera sin egen stress och om specialpedagogisk handledning kan underlätta. Studien bygger på sex enskilda djupintervjuer och femtio enkäter som besvarats av slumpmässigt utvalda pedagoger på förskola, fritidshem och grundskola. Med hjälp av djupintervjuerna och enkäterna vill vi visa hur pedagoger uppfattar sin arbetssituation. Vårt syfte baseras på två frågeställningar: Vilka copingstrategier har pedagoger i förskolan, grundskolan och fritidshem för att hantera stress? Upplever pedagoger att specialpedagogisk handledning skulle underlätta deras reflektion och stresshantering? Arbetet ger en översikt över tidigare forskning om pedagoger och stress. Sammanfattningsvis pekar resultatet av vår undersökning att pedagogerna upplever sitt arbete som meningsfullt, glädjefullt och betydelsefullt, men att deras arbetsbelastning är för hög. Pedagogerna använder sig av olika copingstrategier för att hantera sin stress. De upplever att de får stöd från kollegor. Resultatet visar att deras chefer inte i tillräcklig omfattning har möjlighet att kunna bekräfta, stödja, vägleda dem. Pedagogerna anser att om de erbjöds specialpedagogisk handledning skulle detta underlätta deras arbetssituation. Kunskapsbidraget som denna studie kan bidra med är att belysa vikten av en hållbar utveckling och ett hållbart ledarskap inom pedagogisk verksamhet. Resultatet kan tillämpas genom att specialpedagogisk handledning kan bidra till att reducera pedagogers stress och kommer tredje part tillgodo, därmed barnen.
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Hallak, Nivin, and Sofia Kinaret. "Olika sätt att reducera arbetsrelaterad stress hos sjuksköterskor : En litteraturstudie." Thesis, Högskolan i Gävle, Avdelningen för vårdvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-34449.

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Bakgrund: Sjuksköterskor upplever i hög grad stress i sitt arbete, vilket leder till konsekvenser för organisationen, sjuksköterskans egen hälsa samt för patientsäkerheten. Syfte: Syfte med denna litteraturstudie var att sammanställa hur arbetsrelaterad stress hos sjuksköterskor skulle kunna minskas. Metod: Denna studie hade utformningen av en beskrivande litteraturstudie där 12 artiklar analyserats. Huvudresultat: Flertalet interventioner och stressreducerande program har prövats för att öka sjuksköterskornas förmåga att hantera arbetsrelaterad stress, dvs att utveckla copingstrategier. Återhämtning i form av fysisk aktivitet, sociala kontakter, aktiviteter och stöd, samt olika slags behandlingar som djurassisterad terapi, öronakupunktur, lavendelolja, massage och raster visade sig bidra till en minskad känsla av stress hos sjuksköterskorna. Slutligen hade organisationen och ledningens betydelse visat sig vara viktig när det kommer till att minska stress hos sjuksköterskor. Slutsats:Flertalet olika metoder var bidragande när det kommer till att minska arbetsrelaterad stress hos sjuksköterskor. Dessa metoder skiljde sig mycket från varandra, men hade alla gemensamt att de ämnade att skapa strategier för sjuksköterskan att bättre kunna hantera stress, dvs utveckla sina copingstrategier.
Background: Nurses experience high levels of stress in their daily work, that leads to consequences when it comes to the organization, the well-being of the nurse herself, but also when it comes to patient safety. Aim: The aim of this study was to summarize how occupational stress among nurses can be reduced. Method: The design of this study was a describing literature review where 12 articles where analyzed.Main results: Several interventions and stress reduction programs have examined if they can help nurses handle occupational stress, i.e. develop their coping strategies. Recovery, as physical activity, social support, and other treatments like cane assisted therapy, auriculotherapy, massage, lavender oil treatment and the breaks can help reduce stress in nurses. The organization and the leadership, was also important when it comes to reducing the stress levels for nurses. Conclusion: Several methods contributed to reduce the stress level among nurses. Even though these methods differed, they all had in common that they aimed to create strategies for nurses to be able to handle occupational stress, i.e. to develop their coping strategies.
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Thorn, Sara, and Nicole Wistrand. "Hantera och reducera stress med meditation/mindfulness : En litteraturstudie." Thesis, Högskolan i Skövde, Institutionen för hälsa och lärande, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-13888.

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Inledning: Samhället utvecklas och ställer allt högre krav på den enskilde individen som kan leda till ökad stressnivå. Långvarig stress kan leda till allvarliga folkhälsosjukdomar såsom utmattningssyndrom och depression. För att kunna påverka stressens negativa betydelse för hälsan är det viktigt att belysa behandlingsalternativ såsom meditation/mindfulness som kan inkluderas i vardagen. Syfte: Syftet med den här litteraturstudien är att undersöka vilka vetenskapliga belägg som finns om hur meditation/mindfulness kan hjälpa individer att hantera och reducera stress och på så sätt öka välbefinnandet och hälsan. Metod: Metoden är en litteraturstudie vilket innebär att artiklarna som ingår i studien har kritiskt granskats i en litteraturgenomgång. Tio artiklar ingår i studien som delats in i fyra teman som redovisas i resultatet. Resultat: Meditation/mindfulness kan vara effektiva metoder att hantera och reducera stress med, men alla studier var inte lika övertygande. Resultatet är indelat i fyra olika teman, positivt med meditation/mindfulness, tvivel om meditation/mindfulness effektivitet, mindfulness-based stress reduction (MBSR) och onlineprogram. Gällande meditation/mindfulness antydde några studier att det kan öka välbefinnandet och minska stress. Medan andra var mer osäkra på dess fördelar. Mindfulness-based stress reduction (MBSR) visade på tydligare resultat gällande stressreduceringsprogram och likaså onlineprogram. MBSR kan användas av både sjuka och friska människor. Onlineprogram är effektiva både kostnadsmässigt och att individen kan nå programmen var som helst. Diskussion: Det fanns inte lika tydliga belägg för meditation/mindfulness effektivitet vid stresshantering som förväntat. Alla studier var inte överens om att det hade någon effekt men trots tvivel vill de forska mer innan de utesluter det som en bra metod. Hur effektivt det är för en individ kan variera för att programmen kräver träning, förståelse och förtroende. Meditation/mindfulness hjälper inte alla individer att hantera sin stress, men för vissa gör den det och för andra kan vara en bra metod i väntan på att få professionell hjälp.
Introduction: The society develops and sets high standards on individuals and that make the stress increase. Long-term stress can lead to public health diseases such exhaustion syndrome and depression. To provide stress’s negative effect on health there is a need of reducing programs and interventions such meditation/mindfulness that can be included in the everyday life. Aim: The aim of this literature study is to investigate what scientific evidence exists about how meditation / mindfulness can help individuals manage and reduce stress, and then increase well-being and health. Methods: The method is a literature study, which means that the articles that are included in the study have been critically reviewed in a literature review. Ten articles are included in this study and they are divided into four themes that are reported in the result. Results: Meditation / mindfulness can be effective methods of managing and reducing stress, but all studies were not assured. The result is divided into four different themes, positive with meditation / mindfulness, doubts about meditation / mindfulness efficiency, mindfulness-based stress reduction (MBSR) and online programs. Some studies suggested that it could increase well-being and reduce stress. While others were uncertain of its benefits. Mindfulness-based stress reduction (MBSR) showed clearer results about stress reduction programs and online programs. MBSR can be used by both sick and healthy people. Online programs are effective both cost-effectively and that the individual can reach the programs from home. Discussion: There was not as clear evidence of meditation/mindfulness effectiveness in stress management as expected. All studies did not agree that it had any effect but in spite of doubt, more research is needed before ruling out as a good method. How effective it is for an individual may vary because the programs require training, understanding and trust. Meditation/mindfulness doesn’t help every individuals to manage their stress, but for some it does and for some it may be a good method while waiting for professional help.
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Wäppling, Louise, and Misja Holst. "En korrelationsstudie om stress : Är fysisk aktivitet och sömn effektiva medel för att reducera stress?" Thesis, Linnéuniversitetet, Institutionen för psykologi (PSY), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-80161.

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Stress kan idag ses som ett av det moderna västerländska samhällets största folkhälsoproblem, där risken för att utveckla stressinducerade sjukdomar är hög. Forskning har funnit bevis på att fysisk aktivitet och sömn kan reducera stress, huruvida är det få studier som har kombinerat dessa två variabler för att undersöka högskole-och universitetsstudenters stressnivåer. Målet för studien är att undersöka om det finns en korrelation mellan studenters sömnvanor, grad av fysisk aktivitet och individernas upplevda stress. Studiens syfte besvarades med hjälp av två hypoteser; 1. Graden av fysisk aktivitet reducerar studenters stressnivåer, 2. Hög kvalitativ sömn reducerar studenters stressnivåer. Fortsättningsvis användes Krav-kontrollmodellen av Karasek och Theorell (1990) för att förstå studenternas stressreaktioner. Datainsamlingen skedde via instrumenten Perceived Stress Scale - 10 (PSS-10), Physical Activity Questionnaire (IPAQ), och Karolinska Sleep Questionnaire (KSQ) vid ett universitet i södra Småland. Studien fann ingen signifikant korrelation mellan stress, sömnvanor och fysisk aktivitet.
Stress can today be seen as one of the western world’s greatest health concerns, where the risk for developing stress-inducing illness is high. Research have found evidence that physical activity and sleep have a stress reducing effect, however, there are few studies that have combined these two variables to analyse students stress levels. The purpose of this essay is to analyse the correlation between university students sleeping behaviour, levels of physical activity and perceived stress. The study uses two hypothesis; 1. higher levels of physical activity reduces university students stress levels, 2. high quality sleep reduces university students stress levels. The job demand control model by Karasek and Theorell (1990) was used to understand the individuals stress reactions. The data was collected at a university in the south of Sweden using the instruments Perceived Stress Scale - 10 (PSS-10), Physical Activity Questionnaire (IPAQ), and Karolinska Sleep Questionnaire (KSQ). The study found no significant correlation between the three variables stress, sleep and physical activity.
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Johansson, Amanda, and Sara Modin. "Skolors preventiva arbete för att reducera stress bland skolungdomar : En intervjustudie med skolsköterskor." Thesis, Högskolan i Halmstad, Sektionen för hälsa och samhälle (HOS), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-17942.

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Introduktion: Idag rapporterar unga vuxna och ungdomar allt mer stressrelaterad ohälsa. Långa perioder med stress kan orsaka bland annat nedsatt prestationsförmåga, kronisk trötthet, olust, nedstämdhet, minnesstörningar, sömnproblem, domningar och diffusa muskelsmärtor. Ungdomar anser att kunskap om stress och stresshantering i skolan är viktigt för att stå emot stress. I en studie av Svensk Idrottsforskning framgick det att 77 % av flickorna och 63 % av pojkarna ansåg att skolan är den främsta orsaken till stressen. Syfte: Syftet med studien var att beskriva hur skolor arbetade/arbetar preventivt för att reducera stress bland skolungdomar. Metod: För att få syftet besvarat så genomfördes en kvalitativ metod. En frågeguide konstruerades och därefter genomfördes intervjuer med fem kvinnliga skolsköterskor på högstadieskolor i en kommun i södra Sverige. Intervjuerna transkriberades ordagrant och sammanställdes genom en temaanalys. Resultatet presenterades i fyra teman. Resultat: Resultatet presenterades i följande teman: tillgänglighet till skolpersonal, samtal kring hälsan, skolans stödjande omgivning samt sociala och emotionella aktiviteter i skolan. Det framkom att skolsköterskorna var tillgängliga för eleverna genom att de hade ”dörren öppen”, följde med på aktiviteter och var ute i verksamheten. De hade även hälso- och motiverande samtal med eleverna. Skolsköterskan arbetade också med massage för att reducera elevernas stress. På skolorna arbetade lärare och elever för att skapa en stressdämpande skolmiljö. Det förekom även olika aktiviteter på skolorna i form av SET, värdegrundsarbete, etik och moral samt fritt val. Implikation: Med hjälp av studien kan skolor ta del av varandras arbete när det gäller hur de arbetar preventivt för att reducera stress bland skolungdomar. Fortsatt forskning skulle kunna inkludera elevers åsikter om hur skolor ska arbeta preventivt mot stress.
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Österman, Jenny, and Sanna Lindstrand. "Kan fyra veckors yoga reducera stress hos domstolshandläggare på Nacka tingsrätt? : En kvantitativ interventionsstudie." Thesis, Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:gih:diva-5673.

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Syfte och frågeställningar Syftet är att studera om yoga kan minska stress hos domstolshandläggare vid mark- och miljödomstolen i nacka tingsrätt. Frågeställning: Kan fyra veckors yoga reducera stress hos domstolshandläggare på Nacka tingsrätt? Den sekundära frågeställningen är: Finns det ett samband mellan den självuppskattade stressen och de fysiologiska testerna? Metod För att få bästa möjliga pålitlighet har två olika enkäter samt två olika fysiologiska tester används före- och efter interventionen. Enkäter som användes var PSS10 som mäter stress och KEDS som mäter utmattning. De fysiologiska testerna består av blodtryck och puls. Interventionen bestod av 2 yogapass i veckan under en period på 4 veckor för kontorsanställda på Nacka tingsrätt. Resultat Testpersonerna skattade sig 11% bättre på Perceived Stress Scale (p=0,034) med samt utan bortfall. En förbättring kan ses på utmattningsenkäten där testgruppen utan bortfall förbättrades med 30% dock utan att signifikant data (p=0,081). Däremot hade testgruppen med bortfall en signifikant förbättring med 33,33% (p=0,049). De fysiologiska testerna (blodtryck och puls) visar inget förbättrat värde efter yogan. Urvalet bestod av: Utan bortfall - 10 deltagare där medelåldern var 37,8 år. Med bortfall - 9 deltagare där medelåldern var 38,2 år. Det var 1 man och 9 kvinnor. Slutsats Kontorsanställda deltog i ett 4 veckors yogaprogram där de reducerade den självupplevda stressen. Däremot var ingen skillnad i fysiologiska faktorer efter yoga funnen. Eftersom de fysiologiska testerna inte visar ett samband med yogan utesluts ett cross-sectional samband. Mer forskning behövs för att kunna urskilja om de fysiologiska faktorerna kan påverkas av yoga.
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Matsson, Annemarie, Kristian Albertsson, and Linus Svensson. "Elevers stress : En studie på grundskolans senare år om elevers upplevelser av stress och hur de tror att man kan reducera den." Thesis, University of Skövde, School of Humanities and Informatics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-967.

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Students’ experience of stress is generally considered to be an isolated problem, caused by school work. Students’ experience of stress at school can also be affected by exterior influences.

This research aims to discover what factors Swedish students, age 13 – 16, experience as stressful. It also aims to describe how students believe this stress can be reduced. This project originated from a request from a secondary school. A questionnaire was used to map the different stress factors. Interviews enabled greater understanding of these factors and what students themselves believe can reduce the stress. The gathered material was interpreted in several steps by the use of ad hoc methods.

The result shows that half of the students experience stress every week. The main causes are lack of time and demands. They lack “free time”, which enables the body to recover from the stress. The students desire management, including guidance from parents concerning prioritising and setting limits. The school should help the students to develop study techniques. The stress is caused by a feeling of not being able to live up to and deal with own and exterior demands. It can be reduced by planning (enabling “free time”), influence (co-operation), personal development (improvement of self-esteem and identity) and management (guidance, limitations, acceptance and development).


Elevers upplevda stress i skolan ses ofta som ett isolerat problem som framkallas och påverkas under skoltid. Upplevelser av stress i skolan kan även bero på andra faktorer som elever påverkas av utanför skoltid.

Studien syftar till att kartlägga olika faktorer som elever i årskurs 7-9 upplever som stressande och hur de tror att stressen kan reduceras. Detta arbete har utgått från en frågeställning som framförts av en skola. En enkät användes för att kartlägga olika stressfaktorer. Intervjuer gav djupare förståelse för de olika stressfaktorerna och hur eleverna tror att den upplevda stressen kan reduceras. Det insamlade materialet tolkades i flera steg med ad hoc-metoder.

Resultatet visar att hälften av eleverna känner sig stressade varje vecka. Elevernas största stressfaktorer är tidsbrist och krav. De saknar ”fri tid”, som ger kroppen återhämtning från stress. Eleverna efterlyser ledarskap, hjälp från föräldrar att prioritera och sätta gränser samt att skolan ska utveckla elevernas studietekniker. Stressen orsakas av en känsla att inte kunna leva upp till och hantera egna och omvärldens krav. Reducering av stressen kan ske genom planering (skapande av ”fri tid”), inflytande (samplanering), personlig utveckling (stärkt självkänsla och identitet) och ledarskap (ledning, gränssättning, acceptans och utveckling).

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Björk, Maria, and Matilda Ljudén. "Till Salu! : Kan fastighetsmäklarens arbetsprocess bli Lean?" Thesis, Uppsala universitet, Företagsekonomiska institutionen, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-315956.

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Under de senaste tjugo åren har stora förändringar skett inom fastighetsmäklarbranschen. I takt med ökade administrativa krav, striktare lagar samt en ökad konkurrens har pressen att prestera och alltid finnas tillgänglig varit tydligt märkbar. Detta kombinerat med yrkets utformade av obekväma arbetstider har gjort att stressnivån hos fastighetsmäklare ökat, vilket medför en högre risk för psykisk ohälsa. Genom att kartlägga fastighetsmäklarens arbete syftar studien till att tidseffektivisera processen och frigöra tid vilket kan reducera stressnivån och skapa återhämtningstid. En välkänd effektivitetsteori för att skapa effektiva processer är Lean. Teorin härstammar från produktionssektorn men har på senare tid även implementerats inom tjänstebaserade yrken. Kvalitativa intervjuer av semi-strukturerad karaktär genomfördes i Uppsala, Sverige och ligger till grund för studien datainsamling. Intervjuresultatet påvisar att det finns aktiviteter i processen som kan effektiviseras. Studiens slutsats för att skapa effektiva processer är att anpassa arbetet efter kundens indirekta behov samt att implementera ett proaktivt arbetssätt för att balansera arbetsbördan.
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Smith, Adam. "Reduce Stress among Nurses through Gamification : A Study of Finding Stress Factors among Nurses and Suggesting Gamification to Reduce Stress." Thesis, KTH, Medicinteknik och hälsosystem, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291442.

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This study shows that stress is one of the important issues which may have a negative impactboth in physical and mental effects on a nurse's working life. Poor ergonomics of the hospitaland a poor behavior approach of nurses can cause stress. To reduce these stress factors, thisstudy suggests solutions based on gamification that imply activities to create a good workingenvironment and to reduce the stress to ensure the good health and well-being of the nurseswho work different shifts especially in night shifts. To achieve the purpose, qualitative researchis used as a method. For this study, nurses who work in hospitals were interviewed in differentshifts especially in night shifts with some open-ended questions related to stress andgamification. Based on their answers, trying to evaluate and analyze the problem and findings.Based on the findings, a gamification concept was developed to provide recommendations tohandle the stress and to be motivated and engaged to develop the well-being of life.
Denna studie visar att stress är en av de viktigaste frågorna som kan ha en negativ inverkanbåde på fysiska och mentala effekter på sjuksköterskans arbetsliv. Dålig ergonomi på sjukhusetoch sjuksköterskors dåliga beteende kan orsaka stress. För att minska dessa stressfaktorerföreslår denna studie lösningar baserade på gamification som innebär aktiviteter för att skapaen bra arbetsmiljö och för att minska stressen för att säkerställa god hälsa och välbefinnandehos sjuksköterskor som arbetar olika skift, särskilt på nattskift. För att uppnå syftet användskvalitativ forskning som metod. För denna studie intervjuades sjuksköterskor som arbetar påsjukhus i olika skift, särskilt på nattskift med några öppna frågor relaterade till stress ochgamification. Baserat på deras svar, försöker utvärdera och analysera problemet och resultaten.Baserat på resultaten utvecklades ett spelkoncept för att ge rekommendationer för att hanterastress och för att vara motiverad och engagerad för att utveckla livets välbefinnande.
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Stone, Frederick J. "Measures to reduce stress at work." Thesis, Aston University, 1985. http://publications.aston.ac.uk/12303/.

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Books on the topic "Reducera stress"

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Stone, Frederick John. Measures to reduce stress at work. Birmingham: University of Aston. Department of Applied Psychology, 1985.

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Reduce your stress in 30 days. Minneapolis, Minn: CompCare Publishers, 1992.

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Smith, Jason Rex. The stress free manager: reduce stress while sharpening your managerial skills. Pendleton, In: Greer Collins Publishing Co., 2000.

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Instant calm: Natural ways to reduce stress. London: Anness Publishing, 2000.

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Neal, C. W. 52 ways to reduce stress in your life. Nashville, Tenn: Oliver Nelson, 1993.

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Simplify your space: Create order and reduce stress! Nashville, TN: Thomas Nelson, 2007.

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5-minute massage: Quick & simple exercises to reduce tension & stress. New York: Sterling Pub. Co., 1995.

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Colour yourself to calmness: And reduce stress with these animal motifs. London: CICO Books, 2015.

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Your breaking point: Effective steps to reduce and cope with stress. Dublin: Attic P., 1993.

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Kasia, Szymanska, ed. Understanding CBT: Develop your own toolkit to reduce stress, enhance performance and increase well-being. London: Kogan Page, 2012.

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Book chapters on the topic "Reducera stress"

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Keaton, Jeffrey R. "Reduced Stress." In Encyclopedia of Earth Sciences Series, 743. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-73568-9_234.

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Keaton, Jeffrey R. "Reduced Stress." In Encyclopedia of Earth Sciences Series, 1. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-12127-7_234-1.

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James, Anthony. "How stress reduces." In Managing Stress in Secondary Schools, 27–36. 2nd ed. Names: James, Anthony (Educational psychologist) author. Title: Managing stress in secondary schools : a whole school approach for staff and students / Anthony James. Description: Second edition. | Abingdon, Oxon; New York, NY: Routledge, [2021]: Routledge, 2021. http://dx.doi.org/10.4324/9781003094524-7.

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Hornblow, Carolyn. "Knowledge about Dying Reduces Stress." In After a Life-Threatening Diagnosis…What's Next…?, 19–32. New York: Productivity Press, 2021. http://dx.doi.org/10.4324/9781003170983-3.

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Fillingim, Roger B., and James A. Blumenthal. "Does Aerobic Exercise Reduce Stress Responses?" In Individual Differences in Cardiovascular Response to Stress, 203–17. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4899-0697-7_11.

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Schurman, Susan J., and Barbara A. Israel. "Redesigning work systems to reduce stress: A participatory action research approach to creating change." In Job stress interventions., 235–63. Washington: American Psychological Association, 1995. http://dx.doi.org/10.1037/10183-016.

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Colahan, Patrick, Rachael Watson, and Steve Ghivizzani. "Gene therapy to reduce joint inflammation in horses." In Oxidative Stress and Antioxidant Protection, 193–204. Hoboken, NJ, USA: John Wiley & Sons, Inc, 2016. http://dx.doi.org/10.1002/9781118832431.ch13.

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Skrylnyk, Yevhen, Viktoriia Hetmanenko, Anzhela Kutova, Kateryna Artemieva, and Yurii Tovstyi. "Influence of Reduced Tillage and Organo-Mineral Fertilization on Soil Organic Carbon and Available Nutrients in Typical Chernozem." In Soils Under Stress, 187–95. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-68394-8_18.

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Matsuda, Mitsuru, Yasunari Nakamoto, Shuichi Kaneko, and Kenichi Kobayashi. "Reduced Chemical Hepatocarcinogenesis in Interferon-γ Receptor Knockout Mice." In HCV/Oxidative Stress and Liver Disease, 58–66. Tokyo: Springer Japan, 2003. http://dx.doi.org/10.1007/978-4-431-67005-6_6.

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Singh, N. K., P. C. LaRosa, D. Nelson, N. Iraki, N. C. Carpita, P. M. Hasegawa, and R. A. Bressan. "Reduced Growth Rate and Changes in Cell Wall Proteins of Plant Cells Adapted to NaCl." In Environmental Stress in Plants, 173–94. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73163-1_16.

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Conference papers on the topic "Reducera stress"

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Przekop, Adam, Michael Stover, and Stephen Rizzi. "Nonlinear Reduced-Order Simulation Using Stress-Free and Pre-Stressed Modal Bases." In 50th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2009. http://dx.doi.org/10.2514/6.2009-2435.

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Eremenko, Andrey. "Blast design for improved performance and reduced surface vibration – a case study." In Eighth International Conference on Deep and High Stress Mining. Australian Centre for Geomechanics, Perth, 2017. http://dx.doi.org/10.36487/acg_rep/1704_66_eremenko.

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Ahmed, Samih, Guayente Minchot, Anders Eriksson, Fritz King, and Mikael Hällgren. "Post-Tensioned Stress Ribbon Systems in Long Span Roofs." In IABSE Congress, New York, New York 2019: The Evolving Metropolis. Zurich, Switzerland: International Association for Bridge and Structural Engineering (IABSE), 2019. http://dx.doi.org/10.2749/newyork.2019.0533.

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<p>Cable systems have numerous advantages, such as: large column-free areas, and reduced materials consumption, which reduces the load and the cost. Nevertheless, they are rarely used in long span roofs due to large deflections, and the insufficient space for end supports, or/and back-stayed cables. This work suggests the use of post-tension stress ribbon system in long span roofs in order to reduce the pull-out forces, deflections and concrete stresses compared to a conventional cable system. A comparison is carried out through meticulous and accurate finite element simulations, using SAP2000, implemented for the new +200m roof of Västerås Travel Center (Sweden), which will become one of the longest cable suspended roofs in the world, if not the longest. Results confirm the suitability and superiority of stress ribbon systems as it reduces concrete stresses, deflections, pull-out forces and vertical reactions. These reductions are found highly correlated to the applied prestressing forces.</p>
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Kuchenbrandt, Dieta, Nina Riether, and Friederike Eyssel. "Does anthropomorphism reduce stress in HRI?" In HRI'14: ACM/IEEE International Conference on Human-Robot Interaction. New York, NY, USA: ACM, 2014. http://dx.doi.org/10.1145/2559636.2563710.

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Leishear, Robert A. "Dynamic Pipe Stresses During Water Hammer: III — Complex Stress Relationships." In ASME 2002 Pressure Vessels and Piping Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/pvp2002-1273.

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Complex three-dimensional dynamic stresses occur in a pipe following a water hammer event. Equations from vibration theory were adapted for use to describe the dynamic stresses at any point along the pipe wall. Hoop, radial, and axial dynamic stress equations are presented to approximate the stresses at a point on the pipe wall. Dynamic stress equations for beams and other simple shapes are also considered. The dynamic pipe stresses are affected principally by the types of water hammer waves or fluid transients, by the wave impacts at elbows or tees, and by the reflections of the waves from these elbows or tees. The three fluid transients considered are a moving step pressure wave, a ramp pressure, and a moving pressure spike. Approximate techniques are presented for evaluating the effects on piping due to the impingement of these transients on an elbow. For an equivalent pressure in a long pipe, application of the step pressure created the largest stress increases of the three transients considered. The vibration equations also prompt a solution to reduce water hammer effects. To this end, slow closing valves are frequently employed. Vibration theory may be applied to quantify the stress reductions afforded by these valves. Pipe stress equations may be manipulated to reduce pipe stresses for a linearly increasing, or ramp, pressure wave traveling along the pipe.
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Parthasarathy, Girija, and Satyavaraprasad Allumallu. "Reduced Models for Rotating Component Lifing." In ASME Turbo Expo 2004: Power for Land, Sea, and Air. ASMEDC, 2004. http://dx.doi.org/10.1115/gt2004-53993.

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The most common failure mode for engine rotating components is material fatigue. Low Cycle Fatigue or LCF is caused by stresses and temperatures resulting from start-stop cycles. One current common practice is to assign an LCF life of certain number of start-stop cycles based on a standard flight or mission. This is done during design through detailed calculations of stresses and temperatures for a standard flight, and the use of material property and failure models. The limitation of the design phase stress and temperature calculations is that they cannot take into account actual operating temperatures and stresses. In order to improve significantly the accuracy of the LCF lifing prediction, the component temperatures and stresses need to be computed for the actual operating conditions. However, stress and thermal models are very detailed and complex, and it could take on the order of a few hours to complete a stress and temperature simulation for a flight. The objective of this work is to develop reduced models, that would enable us to compute the stresses and temperatures at critical locations, without the detailed computationally intensive models. This paper describes the development of the reduced model and the results achieved in comparison with the original models for components of Honeywell propulsion engines. Given certain inputs such as engine speed and ambient temperature for the duration of the flight, the reduced models computes the component critical location temperature and thermal stress for the same flight in a very small fraction of time it would take the original finite element model to compute.
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Kaland, Constantijn, and Vincent J. van Heuven. "Papuan Malay word stress reduces lexical alternatives." In 10th International Conference on Speech Prosody 2020. ISCA: ISCA, 2020. http://dx.doi.org/10.21437/speechprosody.2020-93.

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Karpel, Mordehai, and Lior Brainin. "Stress considerations in reduced-size aeroelastic optimization." In 35th Structures, Structural Dynamics, and Materials Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/6.1994-1480.

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Wais, Edward A., E. C. Rodabaugh, and R. Carter. "Investigation of Stress Indices and Directional Loading of Eccentric Reducers." In ASME 2003 Pressure Vessels and Piping Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/pvp2003-2180.

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Stress indices and stress intensification factors are used in the design of piping systems that must meet the requirements of ASME Section III for Class 1 and Class 2 systems. This study reviews the present values for eccentric reducers and provides new test data for comparison, which takes into account the directionality of the loading. Suggestions are presented which significantly improve the evaluation of reducers.
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Elward, R., M. Saini, D. Gadian, D. Carmichael, A. Giardini, M. De Haan, T. Baldeweg, and F. Vargha-Khadem. "D2.4 Reduced grey matter concentrations in infants with transposition of the great arteries." In Great Ormond Street Hospital Conference. BMJ Publishing Group Ltd and Royal College of Paediatrics and Child Health, 2017. http://dx.doi.org/10.1136/archdischild-2017-084620.36.

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Reports on the topic "Reducera stress"

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Goldin, Claudia. How Japan and the US Can Reduce the Stress of Aging. Cambridge, MA: National Bureau of Economic Research, July 2016. http://dx.doi.org/10.3386/w22445.

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Mumaw, R. J. The effects of stress on nuclear power plant operational decision making and training approaches to reduce stress effects. Office of Scientific and Technical Information (OSTI), August 1994. http://dx.doi.org/10.2172/10175955.

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Wayne, S. F., J. H. Selverian, and D. O'Neil. Development of adherent ceramic coatings to reduce contact stress damage of ceramics. Office of Scientific and Technical Information (OSTI), November 1992. http://dx.doi.org/10.2172/6623608.

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John Martin. Roller Burnishing - A Cold Working Tool to Reduce Weld Induced Residual Stress. Office of Scientific and Technical Information (OSTI), February 2002. http://dx.doi.org/10.2172/821697.

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Scharpf, Robert F., Richard S. Smith, and Detlev Vogler. Pruning dwarf mistletoe brooms reduces stress on Jeffrey pines, Cleveland National Forest, California. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station, 1987. http://dx.doi.org/10.2737/psw-rp-186.

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Bortel, Milos. Using Al Foam to Reduce the Transfer of Impact Stress between Ceramic Plates. Fort Belvoir, VA: Defense Technical Information Center, November 2004. http://dx.doi.org/10.21236/ada525718.

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Lawson, Inez. Invertebrate Community Composition Across Inundation Regimes and Its Potential to Reduce Plant Stress. Portland State University Library, January 2000. http://dx.doi.org/10.15760/etd.5779.

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Wackerbarth, D. E., M. U. Anderson, and R. A. Graham. PVDFSTRESS: A PC-based computer program to reduce Bauer PVDF stress-rate gauge data. Office of Scientific and Technical Information (OSTI), February 1992. http://dx.doi.org/10.2172/5413767.

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Riveros, Guillermo, Felipe Acosta, Reena Patel, and Wayne Hodo. Computational mechanics of the paddlefish rostrum. Engineer Research and Development Center (U.S.), September 2021. http://dx.doi.org/10.21079/11681/41860.

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Purpose – The rostrum of a paddlefish provides hydrodynamic stability during feeding process in addition to detect the food using receptors that are randomly distributed in the rostrum. The exterior tissue of the rostrum covers the cartilage that surrounds the bones forming interlocking star shaped bones. Design/methodology/approach – The aim of this work is to assess the mechanical behavior of four finite element models varying the type of formulation as follows: linear-reduced integration, linear-full integration, quadratic-reduced integration and quadratic-full integration. Also presented is the load transfer mechanisms of the bone structure of the rostrum. Findings – Conclusions are based on comparison among the four models. There is no significant difference between integration orders for similar type of elements. Quadratic-reduced integration formulation resulted in lower structural stiffness compared with linear formulation as seen by higher displacements and stresses than using linearly formulated elements. It is concluded that second-order elements with reduced integration and can model accurately stress concentrations and distributions without over stiffening their general response. Originality/value – The use of advanced computational mechanics techniques to analyze the complex geometry and components of the paddlefish rostrum provides a viable avenue to gain fundamental understanding of the proper finite element formulation needed to successfully obtain the system behavior and hot spot locations.
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Ruby, Douglas Scott, Brian Murphy, David Meakin, Jason Dominguez, and Peter Hacke. Public release of optimization of metallization scheme for thin emitter wrap-through solar cells for higher efficiency, reduced precious metal costs, and reduced stress. Office of Scientific and Technical Information (OSTI), August 2008. http://dx.doi.org/10.2172/940520.

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