Relevant bibliographies by topics / Reducevar

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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 'Reducevar'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Reducevar"

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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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Mathew, Sarath, and Ajayakumari K. Ajayakumari K. "Improved Delta++:Smartphone Application Update Reducer." International Journal of Scientific Research 3, no. 5 (June 1, 2012): 228–30. http://dx.doi.org/10.15373/22778179/may2014/68.

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Lin, Dong, Xue Qing Qiu, and Zhi Hao Lin. "Study on Combination Use of Polycarboxylate Based Water Reducer and Lignosulphate Based Water Reducer." Advanced Materials Research 721 (July 2013): 252–57. http://dx.doi.org/10.4028/www.scientific.net/amr.721.252.

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Using the cement paste fluidity experiment, this paper carried out a comprehensive research on the effect of the binary compound water reducer of polycarboxylate based water reducer (PC) and lignosulphate based water reducer (LS). The results show that for the use of single water reducer,the plasticizing ability of PC was much better than that of LS. In PC, the plasticizing ability of polyether type polycarboxylate based water reducer (POLYETHER) was slightly higher than that of polyester type polycarboxylate based water reducer (POLYESTER); in LS, sodium lignosulphate based water reducer (SLS) was slightly higher than calcium lignosulphate based water reducer (CLS). For the use of compound water reducer, the compounding effect of PC with LS was good, and the compounding proportion had a significant influence on the compounding effect, the more the proportion of PC in the compound water reducer, the better the compounding effect. Regarding the compounding effect, POLYESTER was significantly better than POLYETHER, SLS slightly better than CLS; To explore the working mechanism of the compound water reducer, the adsorption amount of each component water reducer in the binary compound water reducer on the cement particles surface was measured respectively. The results of adsorption amount show that for the use of single water reducer,the adsorption amount of CLS is greater than that of POLYETHER under the same conditions. The adsorption amount of CLS in the use of compound water reducer was less than that in the use of single water reducer, while the adsorption amount of POLYETHER in the use of compound water reducer was more than that in the use of single water reducer.
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Yang, Shun Qi, Bo Huang, and Liang Ping Mao. "Design Planetary Gear Reducer of ROV Thruster Using Evidence Theory." Advanced Materials Research 616-618 (December 2012): 1988–92. http://dx.doi.org/10.4028/www.scientific.net/amr.616-618.1988.

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Planetary gear reducer is one commonly gearbox used in ROV thruster. In optimization design of planetary gear reducer of ROV thruster, a lot of uncertainties affect the reliability of gear reducer. In this paper, evidence-based design optimization (EBDO) is proposed to handle the planetary gear reducer design under two types uncertainties and first-order reliability method (FORM) is used to calculate reliability of the planetary gear reducer performance functions. Finally, an engineering example is used to illustrate the proposed model to design planetary gear reducer of ROV thruster.
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Wang, Tie, Jun Shen, and Fu Qiang Zhao. "Modular Design on Basic Parameters of Volume Reducer." Applied Mechanics and Materials 86 (August 2011): 633–36. http://dx.doi.org/10.4028/www.scientific.net/amm.86.633.

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In order to meet high-volume, low-cost reducer and ensuring quality in the production of reducer, a new design method is necessary. This paper applies the design method of ‘modular’ in high-volume reducer production, preferred numbers and mechanical optimization design thought, then based on access database and VB programming software research modular design process of the volume reducer. Higher degree basic modular parameters of volume reducer are obtained.
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Chu, Xuyang, Huihuang Xu, Xiaomin Wu, Jiping Tao, and Guifang Shao. "The method of selective assembly for the RV reducer based on genetic algorithm." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 232, no. 6 (March 22, 2017): 921–29. http://dx.doi.org/10.1177/0954406217700179.

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As a precision gear reducer, the RV reducer has a low-transmission backlash (very high assembly accuracy). Therefore, the selective assembly method is the only assembly method which can guarantee the assembly precision of the RV reducer. However, the RV reducer has a complex structure; it consists of a high number of parts whose machining tolerance cannot be very low. Furthermore, there are numerous parts, the tolerances of which influence the RV reducer transmission backlash. Therefore, it is difficult to achieve high assembly accuracy by using the traditional selective assembly method. In this paper, a method of selective assembly is proposed to make the backlash of the RV reducer meet the requirements through the analysis of the characteristics of the RV reducer structure, the processing and assembly process of the parts, and the influence of manufacturing errors on the backlash. Then, a mathematical model was established for the RV reducer assembly issue. And a matching algorithm based on a genetic algorithm was developed. Finally, the algorithm was applied to the selective assembly of the RV reducer for verifying the feasibility and validity of the proposed matching method.
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Kieffer, Joseph W. "Turbine sound reducer." Journal of the Acoustical Society of America 102, no. 1 (July 1997): 21. http://dx.doi.org/10.1121/1.421044.

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Chaudhary, Kamesh. "Cycloidal Speed Reducer." International Journal for Research in Applied Science and Engineering Technology 6, no. 1 (January 31, 2018): 2760–62. http://dx.doi.org/10.22214/ijraset.2018.1377.

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Lockwood, Alan R., Sidney C. Kolongowski, and Dilyard Doolin. "Engine noise reducer." Journal of the Acoustical Society of America 91, no. 1 (January 1992): 544. http://dx.doi.org/10.1121/1.402649.

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Garcia, O., M. D. Martinez-Avial, J. A. Cobos, J. Uceda, J. Gonzalez, and J. A. Navas. "Harmonic reducer converter." IEEE Transactions on Industrial Electronics 50, no. 2 (April 2003): 322–27. http://dx.doi.org/10.1109/tie.2003.809388.

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Dissertations / Theses on the topic "Reducevar"

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Butcher, John Dudley, and mikewood@deakin edu au. "Lie symmetries of partial differential equations using symbolic computing." Deakin University. School of Information Technology, 2004. http://tux.lib.deakin.edu.au./adt-VDU/public/adt-VDU20051110.123208.

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This study presents a theoretical basis for and outlines the method of finding the Lie point symmetries of systems of partial differential equations. It seeks to determine which of five computer algebra packages is best at finding these symmetries. The chosen packages are LIEPDE and DIMSYM for REDUCE, LIE and BIGLIE for MUMATH, DESOLV for MAPLE, and MATHLIE for MATHEMATICA. This work concludes that while all of the computer packages are useful, DESOLV appears to be the most successful system at determining the complete set of Lie symmetries. Also, the study describes REDUCEVAR, a new package for MAPLE, that reduces the number of independent variables in systems of partial differential equations, using particular Lie point symmetries. It outlines the results of some testing carried out on this package. It concludes that REDUCEVAR is a very useful tool in performing the reduction of independent variables according to Lie's theory and is highly accurate in identifying cases where the symmetries are not suitable for finding S/G equations.
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Kumlin, Lundmark Anna, and Linda Byhmer. "Fysisk träning reducerar ångest : En litteraturstudie." Thesis, Umeå universitet, Institutionen för omvårdnad, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-183053.

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Bakgrund: Ångestsyndrom är vanligt bland befolkningen i Europa och prevalensen ökar. Lidandet för den drabbade individen och belastningen på samhällsekonomin är påtaglig. Fysisk inaktivitet är en av flera riskfaktorer till ångest, vilket innebär att fysisk träning kan vara ett kostnadseffektivt behandlingsalternativ med låg risk för biverkningar. Syfte: Syftet med litteraturstudien var att undersöka effekten av fysisk träning för att minska ångest. Metod: Litteraturstudien innefattar åtta kvantitativa studier som granskades, analyserades och sammanställdes. Sökningar genomfördes i fyra databaser och valda artiklar kvalitetsgranskades. Samtliga studier har använt beprövade mätinstrument för ångest och mätningar gjordes pre-intervention, under intervention samt post- intervention. Resultat: Fysisk träning ger ångestreducerande effekt. Samtliga studier visade en signifikant förändring av ångest från baslinje till slut och fem studier visade även en signifikant förändring för fysisk träning jämfört med en kontrollgrupp. Konklusion: Fysisk träning är en effektiv behandling för personer med ångest och hög ångestkänslighet utan större risk för biverkningar, det är kostnadseffektivt och har flera fördelar då fysisk träning även leder till bättre hälsa.
Background: Anxiety disorders are common among the European population and the proportion of affected increase. The affected individual is suffering, and the economic burden in the society is great. Physical inactivity is a risk factor for anxiety indicating that exercise is a cost-efficient treatment with low risk of side effects. Aim: The aim of this study was to examine the effect of physical exercise to reduce anxiety. Methods: This literature study contains eight quantitative studies that have been reviewed, analyzed and compiled. Searches were made in four databases and the studies were quality analyzed. All of these studies have used well known instruments to measure anxiety. Measures have been made pre-intervention, during intervention and post-intervention. Results: Physical exercise leads to an anxiety reduction. All of the studies showed a significant change in anxiety from baseline to post-intervention and five studies also showed a significant change for physical exercise in comparison to a control group. Conclusion: Physical exercise is an effective treatment for those suffering from anxiety and anxiety sensitivity with a low risk of side effects, it is cost-efficient and have many benefits due to the fact that physical exercise also leads to a better health.
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Hagsved, David. "Reducerad bränsleförbrukning för fallskärmsflygplan." Thesis, KTH, Farkost och flyg, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-140596.

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The purpose of this bachelor thesis was to find a concept which reduces the fuel consumption of propeller powered airplanes with piston engines that are meant for skydiving. The concept resulted in a hybrid solution in which an electric motor and a piston engine power the same propeller, and where the piston engine power the electric motor as a generator during the aircraft’s decent. The theoretically fuel consumption was reduced, although the difference was so small it is questionable whether or not it is a profitable solution with current technology.
Syftet med det här är ett kandidatexamensarbetet var att ta fram en mer bränsleeffektiv konceptlösning för propellerdrivna plan med kolvmotor som används för fallskärmshoppning. Konceptet resulterade i en hybridlösning där både en elmotor och en kolvmotor driver samma propeller, och kolvmotorn kan driva elmotorn som en generator under planets nedstigning. Den teoretiska bränslekonsumtionen blev lägre, dock blev skillnaden så pass liten att det är tveksamt om det med dagens teknik är lönsamt.
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Arufors, Robert. "Reducerad tidsvariation vid monteringsmoment." Thesis, Högskolan i Skövde, Institutionen för ingenjörsvetenskap, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-16963.

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Byström, Elisabeth, Hanna Löfström, and Anna Svensson. "Uppdragsbrevet – formalitet eller reducerat förväntningsgap?" Thesis, Kristianstad University College, Department of Business Administration, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hkr:diva-4474.

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När det finns en skillnad mellan vad revisorn förväntas utföra och vad revisorn tillhandahåller uppkommer ett förväntningsgap. Detta förväntningsgap är ingen ny företeelse och ända sedan dess uppkomst har revisionsprofessionen vidtagit olika åtgärder för att minska gapet. En åtgärd är den revisionsstandard som FAR införde år 2004 som innebär att uppdragsbrev ska upprättas mellan revisor och klient inför varje revisionsuppdrag. Uppdragsbrevet tydliggör revisorns arbetsuppgifter, revisionens syfte samt vardera parts ansvar i revisionsuppdraget.

Med utgångspunkt i teorier om förväntningar, agentteori samt institutionell teori, är syftet med uppsatsen att förklara hur införandet av uppdragsbrevet har påverkat förväntningsgapet mellan revisor och klient.

I studien framkom att uppdragsbrevet med dagens utformning och innehåll, där revisorn i princip själv kan välja vad som ska framgå, kan bli intetsägande för klienten. Ett flertal klienter uppger att de inte minns huruvida de skrivit under ett uppdragsbrev eller tycks se det som ytterligare ett dokument som revisorn tillhandahåller. Detta grundas på studien som visar att uppdragsbrevet varken har ändrat klientens uppfattning gällande revisorns uppgifter eller ökat förståelsen för vad revision innebär. Ett välformulerat uppdragsbrev med väsentligt innehåll anpassat för den aktuella klienten ger denna mer information och kunskap om revisionsuppdraget och revisionens begränsningar, följden skulle sannolikt bli ett minskat förväntningsgap.

Utifrån studiens resultat kan vi konstatera att klienten inte har blivit mer medveten om vad revision innebär efter införandet av uppdragsbrevet, inte heller tycks förväntningsgapet ha minskat mellan revisor och klient. Därmed har uppdragsbrevet inte haft den inverkan på förväntningsgapet som FAR förutsåg, utan endast blivit en formalitet.

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Nordén, Christoffer. "Reducerat vridmotstånd i servoassisterade styrsystem." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-149.

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In newer modern cars the steeringsystem is equipped with a servo that enhances the driver's input from the steering wheel down to the wheels. This is referred to as power-assisted steering. The reason why a modern car with the engine turned off or an older car with a lack of power-assisted steering, is so troublesome to maneuver is that the driver must overcome the friction that occurs between the tires and the surface underneath the tires which prevents the tires from rotating. A servo has been connected to the vehicle's steering system and assists the driver to overcome these forces and to create a more stable handling and an enhanced operation at a lower speed. Servos has in other words reduced the torque required at the steering wheel to rotate the tires. Although there is a reduced torque in the steering wheel provided by the servo, it´s for many individuals still not sufficiently reduced. Individuals with reduced or limited mobility in their hands or arms may experience difficulty in operating the steering wheel of a car. Especially challenging is it if the person obtains a car with an installed hand control for operating the acceleration and braking, leaving as the only alternative, to maneuver the steering wheel by one hand. By reducing the required torque, or effort, needed in the steering wheel, further it’s made possible for these people to independently use a car without any setbacks. Is it possible to reduce the needed effort at the steering wheel in all cars on the commercial market? The current commercial market consists, in majority, of the electric power-assisted steering systems(EPAS) and hydraulic power-assisted steering systems(HPAS). These two types of systems have been carefully studied and the challenges of reducing the needed effort has been analyzed. The studies and analyzes has been further developed to a result where the assisted steering systems, on the majority of the commercial market cars, can obtain a reduced effort at the steering wheel. How does the reduced effort procedure work? After identifying a torsion bar as the common denominator for the EPAS and HPAS systems the torsion bar could be studied further in its mechanical properties. The result of these studies gave support to theories of being able to machine the torsion bar in order to reduce the torque at the wheel. As a result of the driver's steering wheel movements a twist on the upper part of the torsion bar will accrue when the lower portion of the torsion bar, at first held stationary due to the friction between the tires and the vehicles underneath surface where it creates a displacement of the rods top end and bottom end. The displacement is entirely elastic and the factor that determines the amount of torque the servo will assist with. How the torsion bar interacts with in the different systems varies. In the EPAS systems the torsion bars displacement is interpreted by software and then translated to a control signal leading to an electrical motor. In HPAS systems however, the torsion bar is a major component in a hydraulic valve determining the systems hydraulic flow. By mechanically machining the torsion bar, it reduce its rotational resistance and the servo will with less effort be activated by the driver's steering wheel movements. Is intervention to weaken the torsion bar safe? The procedure is risky and complex but with the knowledge from this report, the help of the tools I developed, and the equipment and scientific results presented, it can be implemented with the OEMs safety margins still intact.
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Bengtsson, Viktor, and Philip Skarheden. "Ökat kapacitetsutnyttjande genom reducerad processvariation :." Thesis, Linnéuniversitetet, Institutionen för maskinteknik (MT), 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-53016.

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Studien är utförd på ett fallföretag med syftet att skapa en djupare förståelse för hur stabilisering av en produktionsprocess påverkar kapacitetsutnyttjandet. Nuläget analyserades genom observationer, intervjuer och företagets egen dokumentation. Två experiment utfördes vilket resulterade i att ett samband hittades mellan variationer och kapacitetsutnyttjandet i en produktionsprocess. Vidare avgränsades vilka produktionsförutsättningar som gav högst kapacitetsutnyttjande. Slutligen presenteras hur det ökade kapacitetsutnyttjandet påverkar de ekonomiska resultaten samt studiens slutsats och rekommendationer till fallföretaget.
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Ottosson, Melodie. "Stresshantering i arbetslivet : Hur man reducerar den negativa stressen." Thesis, University of Skövde, School of Technology and Society, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-612.

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Syfte: Jag ville ta reda på hur chefer/ledare idag handskas med och blir påverkade av stressen i arbetslivet.

Teori: Hur du skall vara som ledare/chef och hur man utvecklas genom rollen samt teori om stress, negativ/positiv stress samt olika stressmodeller.

Metod: En kvalitativ undersökningsmetod genom individuella intervjuer med ett flertal butikschefer.

Slutsatser: Att upplevd stress är helt individuell beroende på erfarenhet, gener, ledarskap mm. Sen är det upp till sig som chef att lära dig att balansera dig fram till den optimala situationen för att du skall undvika negativ stress.

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Branelius, Oscar, and Richard Albertsson. "Nautikerns möjlighet att reducera bunkerförbrukningen." Thesis, University of Kalmar, Kalmar Maritime Academy, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:hik:diva-1600.

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The work aims to clarify what nautical officers onboard in today's merchant can do to help reduce bunker consumption during the voyage? The question we have asked ourselves during the autumn term in 2008 much was said about the premium bunker prices, and how the future could affect our daily lives as nautical officer. We felt here that the school had relatively little knowledge of the subject and therefore felt that it would be interesting to identify how it really looks like onboard the ships today. To collect information we contacted 7 Swedish companies that operate with different types of vessels, in order to get a broad picture of the whole industry. For shipping companies we asked questions about how actively they were working on the issue and what methods they used. We found that the owners worked with the issue but that it so far was a little on the go. All but one company in the survey provided the vessels are instructed to run bunker efficiently.


Arbetet syftar till att klarlägga vad nautikerna ombord i dagens handelsfartyg kan göra för att reducera bunkerförbrukningen under pågående sjöresa? Frågan ställde vi oss eftersom det under höstterminen 2008 talades mycket om de ”skyhöga” bunkerpriserna och hur de i framtiden skulle påverka vår vardag som nautiker. Vi kände att det på skolan fanns förhållandevis lite kunskap i ämnet och tyckte därför att det vore intressant att kartlägga hur det verkligen ser ut ombord i fartygen idag. Främst gällande direktiv till befälen rörande bunkerreducerande metoder.

För att få underlag för arbetet kontaktade vi 7 stycken svenska rederier som är verksamma med olika typer av fartyg, detta för att få en bred bild av hela sjöfartsbranschen. Till rederierna ställde vi frågor om de aktivt arbetade med frågan och i så fall vad de använde sig av för metoder. Vi kunde konstatera att redarna arbetade med frågan men att det än så länge låg lite i startgroparna. Alla utom ett rederi i undersökning gav fartygen instruktioner om att köra bunkereffektivt.

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Larsson, Anders, and Erik Lundqvist. "Bromskänsla : vid reducerad anliggning i skivbroms." Thesis, KTH, Maskinkonstruktion (Inst.), 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-171970.

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I forskningsprogrammet Gröna bilen 2 ingår ett projekt för att minska miljöpåverkan orsakad av fordonsbromsar. Projektet har bland annat som mål att reducera emission av partiklar från bromssystemet med 50 % och att minska bränsleförbrukningen genom att reducera anliggningen mellan bromsbelägg och bromsskiva. På de flesta av dagens personbilar ligger bromsbeläggen mot bromsskivan även då bilen inte bromsas. Detta orsakar slitage på bromsarna och ökar friktionsmotståndet i bilens hjul. Genom att konstruera bromsar med återfjädrande bromskolvar kan dock problemet undkommas men spelet som då skapas mellan bromsbelägg och bromsskivan måste tas upp utan att påverka bromssystemets prestanda. Det är även viktigt att bromspedalens beteende och bromskänslan, dvs. förarens upplevelse då han/hon bromsar, inte förändras på grund avspelet vid beläggen. För att kunna ställa upp en modell för spelets påverkan i pedalen studerades ett bromssystem från en Saab 9-3. Varje komponent i systemet ställdes upp matematiskt med avseende på hur den påverkade kraften och förskjutningen i systemet under det intervall då bromsbelägget försköts från sitt bakre läge tills det kom fram till bromsskivan. Även en existerande lösning för problemet, Quick take-up huvudcylinder, studerades och ställdes upp matematiskt. För att sedan lösa systemet modellerades ett program upp i Simulink. Då bromsen inte har något spel dvs. bromsbelägget ligger mot bromskivan hela tiden behöver pedalen förskjutas 20 millimeter innan bromsningen påbörjas. Detta beror på att systemets olika komponenter behöver förskjutas en viss sträcka för att stänga ventiler och på så sätt trycksätta systemet. När sedan ett spel på 0.1 millimeter per sida sattes vid bromsbelägget blev den nödvändiga förskjutningen till 37 millimeter. Med en Quick take-up huvudcylinder i systemet blev förskjutningen dock bara 21 millimeter. Kraften i pedalen påverkades inte av hur stort spel som sätts vid bromsbelägget. För att bevara bromskänslan då skivbromsen konstrueras med återfjädrande bromskolv måste systemet på något sätt modifieras, till exempel med en Quick take-up huvudcylinder.
In the research program “Gröna Bilen 2”, one of the projects aims towards decreasing the environmental impact caused by vehicle brakes. Some of the goals for the project are to reduce particle emissions caused by the brake system by 50% and to reduce the friction between brake pads and brake disc. On most modern passenger cars, the brake pads and brake disc are always in contact, even when the brakes are not applied, this causes the brakes to wear and increases the friction. By designing brakes with retracting brake calliper pistons this problem can be solved. If a clearance is introduced between the brake pads and the brake disc it’s important that it doesn’t affect the brake performance of the car, nor can the brake feel of the pedal be affected negatively. To create a model of the influence of the clearance on the behaviour of the pedal, a brake system from a Saab 9-3 was studied. The behaviour of the forces and displacements in every part of the system was modelled with mathematical expressions on the interval from the drivers application of force on the pedal until the brake pads made contact with brake disc. An already existing solution of the problem with excessive pedal travel caused by the clearance between the brake pads and the brake disc where studied, a Quick take-up master cylinder. The Quick take-up master cylinder was also modelled with mathematical expressions, and the complete system was implemented in Simulink model. When there is no clearance between the brake pads and the brake disc, the necessary pedal travel before the pads starts to press against the disc is 20 millimetres. This is caused by components in the system that needs to move a short distance before their valves is closed and a pressure can start to build in the system. With a clearance of 0,1 millimetres on each side of the brake disc, the necessary pedal travel increases to 37 millimetres. With a Quick take-up master cylinder the pedal travel can be decreased to 21 millimetres. The force necessary to press the pedal down is not affected by the size of the clearance. If the brake callipers are designed with retracting calliper pistons the brake system needs to be modified, for example with a Quick take-up master cylinder.
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Books on the topic "Reducevar"

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Deng, Xingqiao. Study on the Zero-Backlash Roller Enveloping Precision Reducer. Singapore: Springer Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-5153-3.

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Book chapters on the topic "Reducevar"

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Gooch, Jan W. "Reducer." In Encyclopedic Dictionary of Polymers, 613. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_9832.

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Beyer, Dirk, and Marie-Christine Jakobs. "FRed: Conditional Model Checking via Reducers and Folders." In Software Engineering and Formal Methods, 113–32. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-58768-0_7.

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Abstract There are many hard verification problems that are currently only solvable by applying several verifiers that are based on complementing technologies. Conditional model checking (CMC) is a successful solution for cooperation between verification tools. In CMC, the first verifier outputs a condition describing the state space that it successfully verified. The second verifier uses the condition to focus its verification on the unverified state space. To use arbitrary second verifiers, we recently proposed a reducer-based approach. One can use the reducer-based approach to construct a conditional verifier from a reducer and a (non-conditional) verifier: the reducer translates the condition into a residual program that describes the unverified state space and the verifier can be any off-the-shelf verifier (that does not need to understand conditions). Until now, only one reducer was available. But for a systematic investigation of the reducer concept, we need several reducers. To fill this gap, we developed FRed, a Framework for exploring different REDucers. Given an existing reducer, FRed allows us to derive various new reducers, which differ in their trade-off between size and precision of the residual program. For our experiments, we derived seven different reducers. Our evaluation on the largest and most diverse public collection of verification problems shows that we need all seven reducers to solve hard verification tasks that were not solvable before with the considered verifiers.
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Gooch, Jan W. "Speed Reducer." In Encyclopedic Dictionary of Polymers, 688. New York, NY: Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10992.

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Chen, Yu-Fang, Chang-Yi Chiang, Lukáš Holík, Wei-Tsung Kao, Hsin-Hung Lin, Tomáš Vojnar, Yean-Fu Wen, and Wei-Cheng Wu. "J-ReCoVer: Java Reducer Commutativity Verifier." In Programming Languages and Systems, 357–66. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-34175-6_18.

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Huber, A. "A CCD Polarimeter with Focal Reducer." In Galactic and Intergalactic Magnetic Fields, 252. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-0569-6_78.

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Lei, Song, Liang Shunke, Li Weihua, and Chen Feixin. "Comparison of the Key Structures Between RV Reducer and Spinea Reducer Based on Finite Element Method." In Application of Intelligent Systems in Multi-modal Information Analytics, 1369–74. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-15740-1_171.

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Zhang, Yanjun, Wen Liu, Tengjiao Lin, Jinhong Zhang, Yunlong Cai, and Guobing Yu. "Resonance Reliability and Sensitivity Analysis of Reducer." In Communications in Computer and Information Science, 484–93. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-2396-6_45.

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Laws, D. Richard. "Psychological Treatment: Risk Reducer or Life Enhancer?" In Social Control of Sex Offenders, 173–99. London: Palgrave Macmillan UK, 2016. http://dx.doi.org/10.1057/978-1-137-39126-1_11.

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Du Bois, André Rauber, Hans-Wolfgang Loidl, and Phil Trinder. "Thread Migration in a Parallel Graph Reducer." In Implementation of Functional Languages, 199–214. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/3-540-44854-3_13.

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Deng, Xingqiao. "Meshing Performance Analysis for Different Roller and Different Enveloping Positions." In Study on the Zero-Backlash Roller Enveloping Precision Reducer, 67–96. Singapore: Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-5153-3_3.

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Conference papers on the topic "Reducevar"

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Li, Huamin, Yongsheng Liang, and Shaojie Xin. "Study on Load Equilibrating and Vibration Reducing of Three-Ring Gear Reducer." In ASME 2000 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/detc2000/ptg-14456.

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Abstract A new-style transmission pattern — two stage three-ring gear reducer (TRGR), which eccentric phase difference between middle ring plate and side ring plates is 180° and mass of middle ring plate is twice of that of side ring plate, is put forward in this paper. Analysis of internal gear ring plate inertial force and inertial torque and primary manufacturing and assembling errors that affect on load distribution between ring plates are presented. A new-style load equilibrating mechanism — elastic load equilibrating metal ring (ELEMR) which are placed between bearing outer ring and bearing seat of first input shaft and secondary output shaft is put forward. Experimental studies are performed on load equilibrating and vibrating reducing of original reducer without ELEMR and modified reducer with ELEMR. The experimental result indicates that it’s evident in load equilibrating and vibration reducing effectiveness. Load equilibrating non-uniform coefficient (LDNC) Kp changes form 1.314 of original reducer to 1.073 of modified reducer. Under rated torque and rated speed, radial vibration acceleration of secondary output shaft bearing seat changes from 26.6m/s2 of original reducer to 3.35m/s2 of modified reducer, radial vibration velocity of secondary output-shaft bearing seat change from 9.40mm/s of original reducer to 1.19mm/s of modified reducer.
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Mao, He, Guanyi Liu, Deqiang Zeng, Yaning Cao, Kai He, and Ruxu Du. "A New Design of Cycloidal Planetary Reducer With Internal Cycloidal Profile." In ASME 2018 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/imece2018-86184.

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Compared with other speed reducers, the two-stage cycloidal planetary one also known as RV reducer has higher precision, higher mechanical efficiency, higher loading capacity as well as long service life. These characteristics make it attractive for industrial applications, especially for robotics applications and machine tools, where high precision and large torque transmission are required. The traditional RV reducer uses cycloidal drive which is comprised of the cycloidal wheel and the pins. It has some disadvantages in the pin design, because of small clearance between the pin and the cycloidal wheel, the collision between the pin and the cycloidal wheel may lead to unstable stress in the key parts and output velocity fluctuation. This paper presents an innovative cycloidal planetary reducer using internal meshing principle instead of external meshing between cycloidal wheel and pins in traditional RV reducer. In the new design of the reducer, the internal teeth with cycloidal profile are processed inside the reducer housing, meshing with two pin holders which are placed at the inner side of the cycloidal teeth to achieve transmission. The pin holder is a new integral structure of pins integrated on a round plate. Then a comparison study is conducted through establishment of system dynamics analysis. The transmission characteristics and meshing force of both the new type of reducer and the traditional RV reducer are analyzed under the same condition of reduction ratio. The results show the new reducer improves on these shortcomings, its transmission performance is competitive as compared to traditional RV reducer. What’s even better is that its output speed is more stable, and the contact force between the pin position on the pin holder and the internal cycloidal teeth inside the reducer housing is smaller, as well as the contact frequency is obviously decreased.
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Chen, Siyuan, Yanrong Wang, Dasheng Wei, Yanbin Luo, and Shimin Gao. "Vibration Analysis and Methods of Dry Friction Damping of Tubed Vortex Reducer." In ASME Turbo Expo 2020: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/gt2020-14001.

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Abstract The tubed vortex reducer is a new structure of aero-engine, which is widely used in advanced large bypass ratio high performance turbofan engines. It is usually installed between the rear two-stage discs of the high-pressure compressor, and reduces the generation of free vortex by restricting the flow path of the cooling airflow, thereby reducing the pressure loss of the cooling airflow and improving the engine efficiency. In this paper, vibration analysis of tubed vortex reducer is carried out by experiments and numerical simulations. Using the finite element method, the natural vibration characteristics of the vortex reducer are calculated with ANSYS. The sensitivity analysis of the impact of design parameters on the vibration characteristics is carried out. In addition, the vibration test bench of the vortex reducer is set up, and the vibration test of the vortex reducer is conducted by means of frequency sweeping and hammer hitting respectively. The experimental results satisfactorily reproduce the simulation results. Then the theoretical model of dry friction damping of vortex reducer is established. Based on the dynamic model of the complex contact system composed of vortex reducer and damping sleeve, the relationship between energy dissipation in different directions is derived. And a method evaluating the performance of vibration reduction is presented for calculating its equivalent damping ratio. Finally, the influence of the key design parameters and different installation methods on the damping ratio is analyzed. Overall, this work can provide reference for vibration reduction design and optimization of vortex reducer.
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Guan, Zhongyuan, Jinghua Liang, Chunyang Liu, Weichun Chang, Feng Zhu, and Shiyao Peng. "Research and Application of Drag Reducer for Oil Products." In 2008 7th International Pipeline Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/ipc2008-64230.

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Taking the exact demands of chemical additive components added in oil products into account, it is necessary to prepare a drag reducer both with desirable functions and pure composition for oil products differing from that for crude oil. However, that is evidently difficult. This article presents the research and application of a newly-developed drag reducer for oil products, which is innocuous to oil products and easy to handle in its applications. The preparation of the drag reducer was based upon a series of integrative techniques involving adsorbent purification of monomers, implementation of bulk polymerization at low temperatures and ultramicro grinding of polyalphaolefins at normal temperatures. Simultaneously, the drag reducer can be manufactured in different scales by purpose-made equipment system with a little manual operation on safe, reliable, efficient and convenient base. The application test of the drag reducer was conducted successfully and has been commercially applied in Lanzhou-Chengdu-Chongqing Oil Products Pipeline. The application results for the pipeline showed that this drag reducer, as a feasible and available technical method, was not only positively helpful to increase the flow rate of Lanzhou-Chengdu-Chongqing Oil Products Pipeline, but also of great significance for other oil products pipelines in throughput increase and energy saving.
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Aften, Carl, and Walter Philip Watson. "Improved Friction Reducer for Hydraulic Fracturing." In SPE Hydraulic Fracturing Technology Conference. Society of Petroleum Engineers, 2009. http://dx.doi.org/10.2118/118747-ms.

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Lee, I.-Ting Angelina, Aamir Shafi, and Charles E. Leiserson. "Memory-mapping support for reducer hyperobjects." In Proceedinbgs of the 24th ACM symposium. New York, New York, USA: ACM Press, 2012. http://dx.doi.org/10.1145/2312005.2312056.

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Fatma, Nusrat, Hemant Kr Singh, Shafeeq Ahmad, and Prachi Srivastava. "Locality premised reducer scheduling in Hadoop." In 2016 International Conference System Modeling & Advancement in Research Trends (SMART). IEEE, 2016. http://dx.doi.org/10.1109/sysmart.2016.7894524.

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Zeng, Deqiang, Guanyi Liu, and Kai He. "Contact Force Analysis of RV Reducer." In 2018 6th International Conference on Mechanical, Automotive and Materials Engineering (CMAME). IEEE, 2018. http://dx.doi.org/10.1109/cmame.2018.8592456.

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Chen, Lei, Wei Lu, Xiaoping Che, Weiwei Xing, Liqiang Wang, and Yong Yang. "MRSIM: Mitigating Reducer Skew In MapReduce." In 2017 31st International Conference on Advanced Information Networking and Applications Workshops (WAINA). IEEE, 2017. http://dx.doi.org/10.1109/waina.2017.94.

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Mu, Rui, Zhong Hao Chang, and Kai F. "Dynamic Contact Analysis for RV Reducer." In 5th International Conference on Advanced Design and Manufacturing Engineering. Paris, France: Atlantis Press, 2015. http://dx.doi.org/10.2991/icadme-15.2015.34.

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Reports on the topic "Reducevar"

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Gries, Daniel. Simple Row Reducer. Washington, DC: The MAA Mathematical Sciences Digital Library, July 2008. http://dx.doi.org/10.4169/loci002641.

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SYNKINETICS INC BEDFORD MA. Precision Speed Reducer for Robotics and Manufacturing. Appendices. Fort Belvoir, VA: Defense Technical Information Center, February 1995. http://dx.doi.org/10.21236/ada291090.

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