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Littérature scientifique sur le sujet « Search friction »

Auteur : Grafiati

Publié le 9 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "Search friction"

Keymolen, Esther. "In Search of Friction." Techné: Research in Philosophy and Technology 25, no. 3 (2021): 354–78. http://dx.doi.org/10.5840/techne20211124150.

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Considering the key mediating role that smartphones play in everyday life, a postphenomenological analysis to better understand how we have power over these devices, how these artifacts empower and simultaneously can overpower us, seems highly relevant. This article will show that in order to engage in such a much-needed postphenomenological analysis, we will first have to address three fundamental, methodological challenges. The first challenge is brought forth by the personalized interface of smartphones, hindering postphenomenologists to unravel the so-called multistability of the device th

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Kou, Bin, Yao Huang, Pengpeng Wang, Dongcheng Ren, Jie Zhang, and Shijie Guo. "A New Parameter Identification Method for Industrial Robots with Friction." Machines 10, no. 5 (2022): 349. http://dx.doi.org/10.3390/machines10050349.

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Commonly used intelligent algorithms that are used to identify the parameters of friction of industrial robots have poor accuracy or involve complex coding, which is not conducive to their use in engineering. This paper uses the random wandering simulated annealing-based variable-step beetle antennae search (RWSAVSBAS) algorithm to identify the parameters of friction of industrial robots. The moment of friction of the third joint of the robot is experimentally obtained and used to establish a Stribeck friction model. Following this, the RWSAVSBAS algorithm is used to identify the frictional pa

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Othman, M. O., and A. Seireg. "A Procedure for Evaluating the Friction Properties of Hertzian Contacts Under Reciprocating Sliding Motion." Journal of Tribology 112, no. 2 (1990): 361–64. http://dx.doi.org/10.1115/1.2920265.

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The study reported in this paper presents an empirical procedure for evaluating the frictional properties in Hertzian contacts subjected to sinusoidal sliding motion. It utilizes the friction induced lateral vibration of a rod to evaluate the parameters of the frictional function using a gradient search which minimize the error between the analytical response and the friction-induced experimental vibrations. The use of sinusoidal sliding motion at the resonant frequencies of the vibrating rod is found to considerably minimize the effect of external vibrations on the experimental results.

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Cebul, Randall D., James B. Rebitzer, Lowell J. Taylor, and Mark E. Votruba. "Unhealthy Insurance Markets: Search Frictions and the Cost and Quality of Health Insurance." American Economic Review 101, no. 5 (2011): 1842–71. http://dx.doi.org/10.1257/aer.101.5.1842.

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We analyze the effect of search frictions in the market for commercial health insurance. Frictions increase insurance premiums (enough to transfer 13.2 percent of consumer surplus from fully insured employer groups to insurers—approximately $34.4 billion in 1997); and increase insurance turnover (by 64 percent for the average policy). This rent transfer harms consumers and—when combined with heightened turnover—reduces incentives to invest in future health. We also find that a publicly financed insurance option can improve the efficiency of private insurance markets by reducing search friction

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Shao, Liang, Chi Jin, Arno Eichberger, and Cornelia Lex. "Grid Search Based Tire-Road Friction Estimation." IEEE Access 8 (2020): 81506–25. http://dx.doi.org/10.1109/access.2020.2991792.

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Hiki, Y., M. Tanahashi, and Shin Takeuchi. "Search for High Damping Metallic Glasses." Key Engineering Materials 319 (September 2006): 151–56. http://dx.doi.org/10.4028/www.scientific.net/kem.319.151.

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In a hydrogen-doped metallic glass, there appear low-temperature and high-temperature internal friction peaks respectively associated with a point-defect relaxation and the crystallization. The high-temperature-side slope of low-temperature peak and also the low-temperature-side slope of high-temperature peak enhance the background internal friction near the room temperature. A hydrogen-doped Mg-base metallic glass was proposed as a high-damping material to be used near and somewhat above the room temperature. Stability of the high damping was also checked.

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Mortensen, Dale T. "Markets with Search Friction and the DMP Model." American Economic Review 101, no. 4 (2011): 1073–91. http://dx.doi.org/10.1257/aer.101.4.1073.

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Ehsani, Sayeh, Marie-Alice Mandich, Tarek H. El-Bialy, and Carlos Flores-Mir. "Frictional Resistance in Self-Ligating Orthodontic Brackets and Conventionally Ligated Brackets." Angle Orthodontist 79, no. 3 (2009): 592–601. http://dx.doi.org/10.2319/060208-288.1.

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Abstract Objective: To compare the amount of expressed frictional resistance between orthodontic self-ligating brackets and conventionally ligated brackets in vitro as reported in the literature. Methods: Several electronic databases (Medline, PubMed, Embase, Cochrane Library, and Web of Science) were searched without limits. In vitro studies that addressed friction of self-ligating brackets compared with conventionally ligated brackets were selected and reviewed. In addition, a search was performed by going through the reference lists of the selected articles to identify any paper that could

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Ding, Li, Xingcheng Li, Qilin Li, and Yuan Chao. "Nonlinear Friction and Dynamical Identification for a Robot Manipulator with Improved Cuckoo Search Algorithm." Journal of Robotics 2018 (2018): 1–10. http://dx.doi.org/10.1155/2018/8219123.

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This paper concerns the problem of dynamical identification for an industrial robot manipulator and presents an identification procedure based on an improved cuckoo search algorithm. Firstly, a dynamical model of a 6-DOF industrial serial robot has been derived. And a nonlinear friction model is added to describe the friction characteristic at motion reversal. Secondly, we use a cuckoo search algorithm to identify the unknown parameters. To enhance the performance of the original algorithm, both chaotic operator and emotion operator are employed to help the algorithm jump out of local optimum.

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Mazur, Jacek, Renata Różyło, Monika Wójcik, Marian Panasiewicz, Kazimierz Zawiślak, and Paweł Sobczak. "Development of an Innovative Attachment Determining Friction Parameters for Quality Assessment in Sustainable Processing." Sustainability 14, no. 20 (2022): 12986. http://dx.doi.org/10.3390/su142012986.

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New trends forcing the attractiveness of products in sustainable processing make it necessary to search for innovative methods of measuring their quality. For various biological materials, their physical properties, such as friction parameters in addition to their texture, are very important. Friction determines the course of many technological operations, e.g., transport, cleaning, sorting, fractionation, storage, and dosing of materials. An innovative friction adapter was developed for biological raw materials and tested on samples of self-produced soap. A 3D printing method for the producti

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Thèses sur le sujet "Search friction"

MEMBRETTI, MARCO. "Firm size and the Macroeconomy." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2023. https://hdl.handle.net/10281/403956.

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La tesi è formata da due capitoli su dinamica della distribuzione delle imprese e shock aggregati. Usando un modello ad imprese eterogenee, la tesi studia le fluttuazioni di ciclo economico dovute a shock alla tecnologia ed ai costi in entrata.<br>This dissertation collects two essays on firm size dynamics and aggregate shocks. By employing a model with heterogeneous firms, search frictions and endogenous entry/exit we investigate the business cycle dynamics of the firm size distribution by looking at entry cost and technology shocks. The thesis is divided into two chapters.\\ The first chapt

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Engelhardt, Bryan. "Essays on crime and search frictions." Diss., University of Iowa, 2008. https://ir.uiowa.edu/etd/5.

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In this dissertation, I investigate how government policies influence an individual's decision to search for and accept a job and/or crime opportunity. Chapter 1 looks at how long it takes for released inmates to find a job, and when they find a job, how their incarceration rate changes. The purpose is to predict the effects of a successful job placement program. An on-the-job search model with crime is used to model criminal behavior, derive the estimation method and analyze different types of policies. The results show the unemployed are incarcerated twice as fast as the employed and take on

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Moiseeva, Yulia. "Essays on credit and labour market frictions." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/22873.

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The financial crisis of 2008 was characterized by disruptions in credit markets and sharp rises in unemployment. This dissertation contributes to our understanding of the interaction of credit and labour markets. The first chapter studies the impact of credit frictions on labour demand given that the labour market is frictionless. The second chapter introduces search and matching to the labour market and studies the interaction between the two types of frictions. The third chapter investigates wages determined by surplus sharing between firms and workers in the environment with search and cred

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Gkionakis, Vasileios. "Labour market policy and individual saving behaviour in markets with search frictions." Thesis, London School of Economics and Political Science (University of London), 2007. http://etheses.lse.ac.uk/2946/.

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The present dissertation evaluates specific labour market policies and investigates individual saving behaviour in economies characterized by search and matching frictions in the labour market. The first chapter investigates the optimality of state provided unemployment insurance in a search theoretic framework with saving and borrowing constraints. The model is solved numerically, since an analytic solution is not possible, and then calibrated using features of the US economy. The results demonstrate that when individuals have access to saving, the importance of unemployment benefits provisio

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Bradley, Jake. "Structural models of the labor market in the presence of search frictions." Thesis, University of Bristol, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.684913.

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This thesis consists of three independent research projects aimed at gaining a better understanding of the mechanisms underlying labor markets. The unifying themes of the thesis are the theoretical modeling and estimation approaches, which are similar in all three chapters. In the first chapter, co-authored with Helene Turon and Fabien Postel-Vi nay, we develop and estimate a structural model that incorporates a sizable public sector in a labor market with search frictions. The wage distribution and the employment rate in the public sector are taken as exogenous policy parameters. The model is

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Camargo, Bruno Rodrigues. "The role of search frictions in the access to finance by firms." reponame:Repositório Institucional do FGV, 2018. http://hdl.handle.net/10438/24490.

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Submitted by Bruno Rodrigues Camargo (brunorodriguescamargo@gmail.com) on 2018-07-18T14:56:06Z No. of bitstreams: 1 Thesis_BRUNO_CAMARGO_final.pdf: 1776056 bytes, checksum: 4b6f4750984666be7fb977f4384bb228 (MD5)<br>Approved for entry into archive by ÁUREA CORRÊA DA FONSECA CORRÊA DA FONSECA (aurea.fonseca@fgv.br) on 2018-07-24T21:02:27Z (GMT) No. of bitstreams: 1 Thesis_BRUNO_CAMARGO_final.pdf: 1776056 bytes, checksum: 4b6f4750984666be7fb977f4384bb228 (MD5)<br>Made available in DSpace on 2018-07-27T18:44:59Z (GMT). No. of bitstreams: 1 Thesis_BRUNO_CAMARGO_final.pdf: 1776056 bytes, checksu

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FERJANCIC, MAJA. "Essays on uncertainty, business cycles and search frictions in the credit market." Doctoral thesis, Università Bocconi, 2012. https://hdl.handle.net/11565/4054261.

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Shelegia, Sandro. "Markets with Frictions." Doctoral thesis, Universitat Pompeu Fabra, 2009. http://hdl.handle.net/10803/7398.

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Esta tesis consta de tres capítulos en donde analizo mercados con fricciones. En los dos primeros capítulos, estas fricciones surgen debido a la carencia información completa acerca de los precios por parte de los consumidores. Puntualmente, en el primer capítulo, se estudia como se desarrolla la competición de precio multiproducto en este tipo de ambiente. Se encuentra que la búsqueda por precios bajos por parte de los consumidores conlleva a que las firmas fijen los precios de los productos complementarios de manera correlativamente inversa. De esta manera, las firmas buscan incrementar sus

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Onwordi, George Emeka. "Labour market policies and unemployment in the presence of search & matching frictions." Thesis, University of Dundee, 2016. https://discovery.dundee.ac.uk/en/studentTheses/4e0c62e8-c210-4da2-83dc-5dc13ff7a803.

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This thesis consists of three theoretical chapters, all related to the response of unemployment to shocks and the role of active and passive labour market policies. Throughout the thesis, unemployment is assumed to evolve as a result of the uncoordinated nature of the labour market along the lines outlined in the Diamond-Mortensen-Pissarides equilibrium search and matching model. Chapter 2 examines the effects of employment policies on vacancy creation and allocation decisions of firms and unemployment across workers with different skills. We develop a partial equilibrium model with heterogene

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Park, Yongmin. "Interactions between heterogeneity in nominal rigidities and search frictions in general equilibrium models." Thesis, University of Exeter, 2018. http://hdl.handle.net/10871/33065.

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This dissertation consists of three chapters that aim to build a framework which can be used to study interactions between the labour market and macroeconomic dynamics. To achieve this, we reformulate a standard New Keynesian dynamic stochastic general equilibrium (DSGE) model to include search and matching frictions in the labour market and heterogeneity in price and wage stickiness. The first chapter, coauthored with Professor Engin Kara, builds a real business cycle model with labour search frictions and heterogeneity in wage stickiness. Shimer’s (2005) critique on labour search models, tha

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Livres sur le sujet "Search friction"

Acemoglu, Daron. Holdups and efficiency with search frictions. Dept. of Economics, Massachusetts Institute of Technology, 1998.

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Wasmer, Etienne. Equilibrium search unemployment with explicit spatial frictions. IZA, 2005.

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Lagos, Ricardo A. Liquidity in asset markets with search frictions. Federal Reserve Bank of Cleveland, 2007.

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Thomas, Carlos. Search frictions, real rigidities and inflation dynamics. Centre for Economic Performance, London School of Economics and Political Science, 2007.

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Güler, Bülent. Joint-search theory: New opportunities and new frictions. National Bureau of Economic Research, 2009.

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W, Cooper Russell. Implications of search frictions: Matching aggregate and establishment-level observations. National Bureau of Economic Research, 2007.

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Hornstein, Andreas. Frictional wage dispersion in search models: A quantitative assessment. Federal Reserve Bank of Richmond, 2006.

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Boeri, Tito. Preferences for rigid versus individualized wage setting in search economies with frictions. IZA, 2004.

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W, Cooper Russell. Hours and employment implications of search frictions: Matching aggregate and establishment-level observations. Research Division, Federal Reserve Bank of Kansas City, 2006.

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Hornstein, Andreas. Technical appendix for frictional wage dispersion in search models: A quantitative assessment. Federal Reserve Bank of Richmond, 2006.

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Chapitres de livres sur le sujet "Search friction"

Kinsella, Stephen, and David M. Ramsey. "A Model of Partnership Formation with Friction and Multiple Criteria." In Search Theory. Springer New York, 2013. http://dx.doi.org/10.1007/978-1-4614-6825-7_17.

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Tutum, Cem Celal, Kalyanmoy Deb, and Jesper Hattel. "Hybrid Search for Faster Production and Safer Process Conditions in Friction Stir Welding." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-17298-4_68.

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Zagler, Martin. "Structural Change and Search Frictions." In Growth and Employment in Europe. Palgrave Macmillan UK, 2004. http://dx.doi.org/10.1057/9780230506329_4.

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Marjanović, Miloš, Biljana Abolmasov, Jelka Krušić, and Uroš Đurić. "Regional Debris Flow Hazard Assessment of the Grdelica Gorge (Serbia)." In Progress in Landslide Research and Technology, Volume 3 Issue 1, 2024. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-55120-8_15.

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AbstractRoad infrastructure development is currently very intensive in Serbia. One such example is the Grdelica Gorge, where a new highway was aligned and put into service in 2019. The Gorge has provided a very challenging engineering environment imposing high levels of several hazard types: floods; slides; debris flows; and rockfalls. In this work, the debris flow hazard for the first 15 km of the road route was in focus. The assessment included an expert-driven analysis for identifying potential source areas, coupled with deterministic modelling of the flowing process originating from these

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Shaw, Patrick, and Laurel Wheeler. "Digital Networking and the Case of Youth Unemployment in South Africa." In Introduction to Development Engineering. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-86065-3_12.

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AbstractSouth Africa has one of the highest rates of youth unemployment and under-employment around the world, despite having a relatively large formal sector. This is driven, in part, by frictions in labor markets, including lack of information about job applicants’ skills, limited access to job training, and employers’ reliance on referrals through professional networks for hiring. This case study explores whether the online platform LinkedIn can be used to improve the employment outcomes of disadvantaged youth in South Africa. Researchers worked with an NGO, the Harambee Youth Employment Ac

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Posner, Eric A. "The Limits of Antitrust." In How Antitrust Failed Workers. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780197507629.003.0008.

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While antitrust law is an important response to labor market monopsony, it cannot solve all the problems of labor monopsony. A significant degree of labor market power is “frictional,” that is, without artificial barriers to entry or excessive concentration of employment. The two major sources of such friction are search costs and job differentiation. Search costs refer to the costs a worker must incur in order to find a job. Job differentiation refers to the variations in amenities and other conditions that distinguish otherwise similar-seeming jobs. A simple mathematical exercise, drawing on

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Wilson, Sondra Kathryn. "The War against the United States." In In Search of Democracy. Oxford University PressNew York, NY, 1999. http://dx.doi.org/10.1093/oso/9780195116335.003.0077.

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Abstract One year after the Brown decision, the U.S. Supreme Court handed down its decree reaffirming the constitutional principle that racially segregated schools are unconstitutional. and it turned over to the lower federal courts the responsibility of seeing that local school boards moved with “all deliberate speed” to abide by the ruling. The reaction to this decree varied across the nation. School districts in Mississippi declared that they would defy the Supreme Court. Other school districts-in Poteau, Oklahoma; Fayette County, Kentucky, and Oak Ridge, Tennessee-desegregated without fric

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Soom, A., and A. Chopra. "In search of dynamic effects in dry sliding friction." In Tribology Series. Elsevier, 2001. http://dx.doi.org/10.1016/s0167-8922(01)80092-4.

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Bowlus, Audra J., and Shannon N. Seitz. "Search Friction in the U.S. Labor Market: Equilibrium Estimates from the PSID." In Panel Data and Structural Labour Market Models. Emerald Group Publishing Limited, 2000. http://dx.doi.org/10.1108/s0573-8555(2000)0000243011.

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Mortimer, Peter S., and Roderick J. Hay. "Blood and lymphatic vessel disorders." In Oxford Textbook of Medicine, edited by Roderick J. Hay. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198746690.003.0561.

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Bleeding into the skin may occur for local reasons or as part of a systemic disorder. The distribution of lesions is important: widespread lesions suggest a systemic problem, whereas regional lesions suggest that local factors predominate. Widespread flat purpura without erythema should prompt a search for underlying haematological abnormalities such as platelet disorders. In patients with acute peripheral ischaemia, it is important to exclude embolism. A pressure ulcer (decubitus ulcer, bedsore, pressure sore) is due to localized injury to the skin and/or underlying tissue as a result of pres

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Actes de conférences sur le sujet "Search friction"

Dao, Henry. "A Hygienic, Safe and Powerful Solution to Control Problematic Microorganisms." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4144.

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Abstract Bacterial contamination from drilling and fracturing can lead to serious problems in unconventional oil and gas shale plays. Large water volumes for these processes are transported from aquifers, municipal waters, rivers, lakes, ponds or oilfield flowback water to the well site and stored in frac tanks or earthen impoundments. Typically, these waters are contaminated with bacteria. Furthermore, fracturing fluids contain gelling agents or polyacrylamide-based friction reducers which are readily available bacterial food sources. If these fluids are insufficiently treated, establishment

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Tochner, Saar, and Stefan Schmid. "On Search Friction of Route Discovery in Offchain Networks." In 2020 IEEE International Conference on Blockchain (Blockchain). IEEE, 2020. http://dx.doi.org/10.1109/blockchain50366.2020.00039.

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FOLKE, FREDERIK, MOHAMAD ATTIEH, and REBEKKA KOPMANN. "IN SEARCH OF FRICTION LAWS FOR VEGETATEDFLOW WITHIN 2D LARGE-SCALE APPLICATIONS." In 38th IAHR World Congress. The International Association for Hydro-Environment Engineering and Research (IAHR), 2019. http://dx.doi.org/10.3850/38wc092019-0793.

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Specian, Andrew, and Mark Yim. "Friction binding study and remedy design for tethered search and rescue robots." In 2015 IEEE International Symposium on Safety, Security, and Rescue Robotics (SSRR). IEEE, 2015. http://dx.doi.org/10.1109/ssrr.2015.7442940.

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Ahmadi, Shahriar G., Tamer M. Wasfy, Hatem M. Wasfy, and Jeanne M. Peters. "High-Fidelity Modeling of a Backhoe Digging Operation Using an Explicit Multibody Dynamics Code With Integrated Discrete Particle Modeling Capability." In ASME 2013 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/detc2013-12896.

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A high-fidelity multibody dynamics model for simulating a backhoe digging operation is presented. The backhoe components including: frame, manipulator, track, wheels and sprockets are modeled as rigid bodies. The soil is modeled using cubic shaped particles for simulating sand with appropriate inter-particle normal and frictional forces. A penalty technique is used to impose both joint and normal contact constraints (including track-wheels, track-terrain, bucket-particles and particles-particles contact). An asperity-based friction model is used to model joint and contact friction. A Cartesian

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Yamada, Takazumi, Motoyuki Murashima, Noritsugu Umehara, and Takayuki Tokoroyama. "Development of Friction Stabilization Control Using Genetic Algorithm and Contact Point Control Method." In JSME 2020 Conference on Leading Edge Manufacturing/Materials and Processing. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/lemp2020-8602.

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Abstract Currently, there are many tribological components that require long life. In the case of unique machines such as satellites and wind turbines, parts replacement and maintenance require huge costs. Generally, machine surfaces get damaged (e.g. wear scar) during operations, which impedes stable sliding [1,2]. We establish a new surface which can avoid the damaged part in order that maintenance-free or energy-efficient mechanical components can be realized. The previous researchers have developed a method which actively controls friction by using a morphing surface. The morphing surface

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Marvi, Hamidreza, Gregory Meyers, Geoffrey Russell, and David L. Hu. "Scalybot: A Snake-Inspired Robot With Active Control of Friction." In ASME 2011 Dynamic Systems and Control Conference and Bath/ASME Symposium on Fluid Power and Motion Control. ASMEDC, 2011. http://dx.doi.org/10.1115/dscc2011-6174.

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Snakes are one of the world’s most versatile locomotors, at ease slithering through rubble or ratcheting up vertical tree trunks. Their adaptations for movement across complex dry terrain thus serve naturally as inspirations for search-and-rescue robotics. In this combined experimental and theoretical study, we perform experiments on inclined surfaces to show a snake’s scales are critical anatomical features that enable climbing. We find corn snakes actively change their scale angle of attack by contracting their ventral muscles and lifting their bodies. We use this novel paradigm to design Sc

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Sanliturk, Kenan Y., David J. Ewins, Robert Elliott, and Jeff S. Green. "Friction Damper Optimisation: Simulation of Rainbow Tests." In ASME 1999 International Gas Turbine and Aeroengine Congress and Exhibition. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/99-gt-336.

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Friction dampers have been used to reduce turbine blade vibration levels for a considerable period of time. However, optimal design of these dampers has been quite difficult due both to a lack of adequate theoretical predictions and to difficulties in conducting reliable experiments. One of the difficulties of damper weight optimisation via the experimental route has been the inevitable effects of mistuning. Also, conducting separate experiments for different damper weights involves excessive cost. Therefore, current practice in the turbomachinery industry has been to conduct so-called ‘rainbo

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Gregory, Julie J., Thomas L. Paez, Ronald G. Coleman, and Danny L. Gregory. "Identification of a Micro-Slip Friction Damping Function Using Directed Genetic Programming." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/vib-21515.

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Abstract This paper describes the application of directed genetic programming to explore the functional form of non-linear restoring forces that arise due to micro-slip friction. Data are obtained from an experiment to investigate the friction forces in a simple shear interface subjected to a vibration environment. A candidate functional form is proposed to model this friction, and a genetic search is then performed which seeks optimal parameters for the function. The resulting parameters provide the best fit of the proposed functional to the experimental data.

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Dakev, Nikolay V., Andrew J. Chipperfield, and Peter J. Fleming. "Optimal Damping of Vibrations in Multibody Systems Through Equivalent Friction Control Laws." In ASME 1995 Design Engineering Technical Conferences collocated with the ASME 1995 15th International Computers in Engineering Conference and the ASME 1995 9th Annual Engineering Database Symposium. American Society of Mechanical Engineers, 1995. http://dx.doi.org/10.1115/detc1995-0638.

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Abstract In the paper modelling and optimization of friction laws and energy exchange processes in multibody systems are considered. The multibody systems are regarded as chains of absolutely rigid bodies with compliance and friction concentrated at the connections. It is proposed to control the vibration level of such systems by introducing equivalent frictional forces. Such an approach enables modelling and optimization of passive and semi-active damping methods together with active control of vibrations in multibody systems within a unified framework. In particular, the equivalent friction

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Rapports d'organisations sur le sujet "Search friction"

Fabio Morales, Leonardo, Eleonora Dávalos, and Raquel Zapata. Estimating Vacancy Stocks from Aggregated Data on Hires: A Methodology to Study Frictions in the Labor Market. Banco de la República de Colombia, 2023. http://dx.doi.org/10.32468/be.1228.

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We develop a methodology that recovers an estimate of the average stock of vacancies using the information on aggregated hires. We show that our prediction of the vacancy stock is unbiased, and it captures well the level and the dynamics of the United States job opening positions reported in the Job Openings and Labor Turnover Survey. We use the methodology to predict vacancies in Colombia for formal and informal salaried workers; together with unemployment, we estimate Beveridge curves and matching functions by occupations, which allows us to study the nature of the efficiency, frictions, and

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Krolikowski, Pawel M., and Andrew H. McCallum. Tariffs and Goods-Market Search Frictions. Federal Reserve Bank of Cleveland, 2025. https://doi.org/10.26509/frbc-wp-202503.

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We study uniform tariffs in a general equilibrium dynamic model with search frictions between heterogeneous exporting producers and importing retailers. We analytically characterize unilateral import tariffs that maximize domestic welfare. Search frictions lower these tariffs because of market thickness effects, which reinforce aggregate production nonconvexities. A calibration using 2016 U.S. and Chinese data suggests that optimal U.S. unilateral and Nash equilibrium tariffs with baseline search frictions are 10 ppt. below those in a model with reduced search frictions. Changes in welfare in

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Martellini, Paolo, and Guido Menzio. Declining Search Frictions, Unemployment and Growth. National Bureau of Economic Research, 2018. http://dx.doi.org/10.3386/w24518.

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Brancaccio, Giulia, Myrto Kalouptsidi, and Theodore Papageorgiou. Geography, Search Frictions and Endogenous Trade Costs. National Bureau of Economic Research, 2017. http://dx.doi.org/10.3386/w23581.

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Lester, Benjamin, Ali Shourideh, Venky Venkateswaran, and Ariel Zetlin-Jones. Market-making with Search and Information Frictions. National Bureau of Economic Research, 2018. http://dx.doi.org/10.3386/w24648.

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Bhuller, Manudeep, Domenico Ferraro, Andreas Kostøl, and Trond Vigtel. The Internet, Search Frictions and Aggregate Unemployment. National Bureau of Economic Research, 2023. http://dx.doi.org/10.3386/w30911.

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Bergman, Peter, Eric Chan, and Adam Kapor. Housing Search Frictions: Evidence from Detailed Search Data and a Field Experiment. National Bureau of Economic Research, 2020. http://dx.doi.org/10.3386/w27209.

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Guler, Bulent, Fatih Guvenen, and Giovanni Violante. Joint-Search Theory: New Opportunities and New Frictions. National Bureau of Economic Research, 2009. http://dx.doi.org/10.3386/w15011.

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Brancaccio, Giulia, Myrto Kalouptsidi, Theodore Papageorgiou, and Nicola Rosaia. Search Frictions and Efficiency in Decentralized Transportation Markets. National Bureau of Economic Research, 2020. http://dx.doi.org/10.3386/w27300.

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Argyle, Bronson, Taylor Nadauld, and Christopher Palmer. Real Effects of Search Frictions in Consumer Credit Markets. National Bureau of Economic Research, 2020. http://dx.doi.org/10.3386/w26645.

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