Relevant bibliographies by topics / Circle obstacle

Contents

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

Academic literature on the topic 'Circle obstacle'

Author: Grafiati
Published: 30 May 2022
Last updated: 31 July 2025

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Journal articles on the topic "Circle obstacle"

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Ulfa, Nadia, Al Jupri, Darhim, and Kartika. "Analysis of Learning Obstacles of Junior High School Students on The Topic of Circle." Proceeding International Conference on Science and Engineering 3 (April 30, 2020): 599–603. http://dx.doi.org/10.14421/icse.v3.572.

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Geometry is one of the subjects in mathematics school that is important to learn, because through geometry, almost every daily problem can be solved. However, the achievements of Indonesian students in the field of geometry are still relatively low. This study aims to identify the possibility of students' learning obstacles in one area of geometry, which is circle subject. The method used in this study was qualitative research method with survey-based research design, involved 30 eight-grade students from a junior high school in Bandung. The data were collected by triangulation method using an
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FarzanehKaloorazi, MohammadHadi, Mehdi Tale Masouleh, and Stéphane Caro. "Collision-free workspace of parallel mechanisms based on an interval analysis approach." Robotica 35, no. 8 (2016): 1747–60. http://dx.doi.org/10.1017/s0263574716000497.

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SUMMARYThis paper proposes an interval-based approach in order to obtain the obstacle-free workspace of parallel mechanisms containing one prismatic actuated joint per limb, which connects the base to the end-effector. This approach is represented through two cases studies, namely a 3-RPR planar parallel mechanism and the so-called 6-DOF Gough–Stewart platform. Three main features of the obstacle-free workspace are taken into account: mechanical stroke of actuators, collision between limbs and obstacles and limb interference. In this paper, a circle(planar case)/spherical(spatial case) shaped
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Nopriana, Tri, Cita Dwi Rosita, and Diana Halbi. "Implementation of Didactical Design on Circle Material at Junior High School." Kreano, Jurnal Matematika Kreatif-Inovatif 13, no. 1 (2022): 100–112. http://dx.doi.org/10.15294/kreano.v13i1.32620.

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This study aimed to implement a didactic situation design to overcome learning obstacles in the circumference and area of the circle. The method used is qualitative research with Didactical Design Research which goes through the last two stages, namely metapedadidactic analysis and retrospective analysis. The instrument used is a didactic situation design prepared by Rosita, Maharani, Tonah Munfi (2020) and interview guidelines. Based on the implementation results, the didactic situation that has been designed has not been able to overcome students' learning obstacles fully. In addition, a new
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Nurfauziah, Puji, Fahril Hakim, and Rippi Maya. "Learning obstacle materi lingkaran ditinjau dari diferensiasi kesiapan belajar." JPMI (Jurnal Pembelajaran Matematika Inovatif) 8, no. 1 (2025): 47–58. https://doi.org/10.22460/jpmi.v8i1.21976.

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Differentiated learning is learning that prioritizes and facilitates student needs according to student characteristics, one of which is learning readiness, which consists of groups ready for challenges, understanding concepts and repeated concepts. From these three groups, it will be analyzed how learning obstacles occur in analyzing the circle concept. This research is a qualitative descriptive study with 15 research subjects. Based on the results of data analysis, it can be concluded that the group of students who understand the concept and repeat the concept experience epistemological obst
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Mao, Zhiyun, and Li Mo. "Fixed-wing UAV obstacle avoidance algorithm based on real terrain." Journal of Physics: Conference Series 2870, no. 1 (2024): 012008. http://dx.doi.org/10.1088/1742-6596/2870/1/012008.

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Abstract This paper presents an obstacle avoidance algorithm for UAVs based on real terrain constraints. The common obstacle avoidance algorithm often abstracts the obstacle as a sphere or a circle or studies the UAV’s two-dimensional obstacle avoidance on a raster map. With the development of fixed-wing UAVs, UAVs have longer and longer time in the air, longer and longer range, and the low-altitude environment they face is often difficult to simulate with simplified regular shape. Thus, this paper constructs the UAV flight terrain environment using open elevation data and designs an obstacle
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Shaker, A. M., N. J. Yasin, H. A. Ameen, and A. S. Abedalh. "Obstacle arrangements effect on the mixed convection in an enclosure with movable top surface." Journal of Applied Research and Technology 22, no. 6 (2024): 806–15. https://doi.org/10.22201/icat.24486736e.2024.22.6.2576.

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The flow finds extensive application in coating, drying, and mixing processes. The temperature and velocity distribution inside a rectangular enclosure that is driven by a lid were examined using a finite volume numerical method. Five adiabatic cylindrical obstacles were mounted within the cage measures 25 cm in width and 30 cm in length. The right and left walls enclosure is each fully insulated, the top wall was cooled isothermally at Tc and moved at variable speed of U, and the bottom wall was kept at Th using water as a working fluid. Three types of an obstacle with equal area were utilize
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Rosita, Cita Dwi, Tri Nopriana, and Isna Silvia. "DESIGN OF LEARNING MATERIALS ON CIRCLE BASED ON MATHEMATICAL COMMUNICATION." Infinity Journal 8, no. 1 (2019): 87. http://dx.doi.org/10.22460/infinity.v8i1.p87-98.

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Mathematical communication skills is an important role in mathematics learning. However, the importance of mathematical communication skills has not been fully realized in learning, especially circle material. Design a learning material based on mathematical communication is one way to develop this ability. The preliminary study produced the findings of an epistemological learning obstacle so that students' mathematical communication skills were still in the low category. This study aimed to analyze learning obstacle and designing learning materials based on the material mathematical communica
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Maliana, Rahma, and Hafsah Adha Diana. "Analysis of Learning Obstacle on Circle Material at SMPS Nasional Amanah Bangsa." Indo-MathEdu Intellectuals Journal 3, no. 1 (2022): 1–13. http://dx.doi.org/10.54373/imeij.v3i1.29.

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Tujuan penelitian ini untuk menganalisis learning obstacle yang dialami oleh siswa SMPS Nasional Amanah Bangsa pada materi lingkaran. Jenis learning obstacle yang diidentifikasi yaitu epistimological obstacle, ontogenic obstacle, dan didactic obstacle. Metode penelitian yang digunakan kualitatif deskriptif. Sampel penelitian yaitu 3 orang siswa kelas IX yang sudah mempelajari lingkaran dengan kategori kemampuan rendah, sedang, dan tinggi. Sampel penelitian dipilih berdasarkan pengkategorian kemampuan siswa berdasarkan hasil PAS dan rekomendasi guru mata pelajaran. Instrumen penelitian yaitu te
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Liao, Yong, Yuxin Wu, Shichang Zhao, and Dan Zhang. "Unmanned Aerial Vehicle Obstacle Avoidance Based Custom Elliptic Domain." Drones 8, no. 8 (2024): 397. http://dx.doi.org/10.3390/drones8080397.

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The velocity obstacles (VO) method is widely employed in real-time obstacle avoidance research for UAVs due to its succinct mathematical foundation and rapid, dynamic planning abilities. Traditionally, VO assumes a circle protection domain with a fixed radius, leading to issues such as excessive conservatism of obstacle avoidance areas, longer detour paths, and unnecessary avoidance angles. To overcome these challenges, this paper firstly reviews the fundamentals and pre-existing defects of the VO methodology. Next, we explore a scenario involving UAVs in head-on conflicts and introduce an ell
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Jia, Xiaolu, Hao Yue, Xin Tian, and Huanhuan Yin. "Simulation of pedestrian flow with evading and surpassing behavior in a walking passageway." SIMULATION 93, no. 12 (2017): 1013–35. http://dx.doi.org/10.1177/0037549717734633.

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The pedestrian flow with evading and surpassing behavior in a walking passageway is simulated based on a modified social force model in order to explore the influence of this behavior on evacuation efficiency, bottleneck passing capacity, and the macroscopic phenomenon. A pair of conjugated self-driven forces is introduced to enable a pedestrian to avoid a direct collision and keep a normal velocity magnitude while confronting an obstacle. The pedestrian avoiding time is used to define the triggering conditions of evading and surpassing behavior, and has been estimated through practical experi
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Dissertations / Theses on the topic "Circle obstacle"

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Stesenko, О. M. "Using round forms in urban planning." Thesis, Національний авіаційний університет, 2020. http://er.nau.edu.ua/handle/NAU/42118.

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1. Всеобщая история архитектуры. Гл. 3: Итоги развития итальянской архитектуры в XV-XVI вв. М., 1967. 2. Линч К. Современная форма в градостроительстве. M., 1986. 3. Мазаев Г. В. Прогнозирование вероятностного развития градостроительных систем : учеб. пособие. Екатеринбург. 2005. 4. Шубенков М. В. Структурные закономерности архитектурного формообразования. М., 2006.<br>The round shape has a natural township and city, which was a lot built in the history of mankind. For the construction of defensive structures circle is the most economical form. In the territories where the landscape all
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Carr, William MacDonald. "Examining the Obstacles Facing Beijing's Urban Integration Plan." The Ohio State University, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=osu1429878711.

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Cohen, Rosenbaum Dan. "Analys och planering införigångsättning av förbättringsarbete på Demotikos AB." Thesis, KTH, Skolan för elektro- och systemteknik (EES), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169892.

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Många företag står idag inför en affärssituation med stigande konkurrens,krympande marknader, och ökade kundkrav. Framför allt sitter många fast i ett föråldrat sätt attdriva sin verksamhet på, som är dåligt anpassat för den allt tuffare marknaden. Den rekommenderadelösningen stavas ofta ”inför kvalitetstänk och börja jobba med förbättringar”. Det kandock vara lättare sagt än gjort för företag utan tidigare erfarenheter från en sådan strategi, ochmed eventuella betydande brister i sin ordinarie organisationsstruktur. Demotikos AB i Stockholmär ett exempel på ett sådant företag.Avsikten med det
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Meng, Hsiao Hui, and 孟曉惠. "Factors Related to Participants'' Perceptions of the Efficacy and Obstacles in Implementing Quality Control Circle." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/31149838332091696162.

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碩士<br>臺北醫學大學<br>護理學系<br>92<br>Abstract Title of Thesis：Factors Related to Participants’ Perceptions of the Efficacy and Obstacles in Implementing Quality Control Circle Institution：Graduate Institute of Nursing, Taipei Medical University Author：Meng, Hsiao– Hui Thesis directed by：Lu, Meei-Shiow, RN, MS, Professor The purpose of this study is to understand participants’ point of view toward efficacy of QCC and encountered obstacles in the process of QCC activities. Also trying to
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Books on the topic "Circle obstacle"

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Kasperbauer, T. J. Animals and the Expanding Moral Circle. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190695811.003.0007.

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This chapter considers the hypothesis that our treatment of animals is best accounted for by an “expanding moral circle.” This hypothesis is examined by looking at changes in attitudes to animals historically and across cultures. Different conceptions and formulations of this hypothesis are considered, in order to achieve greater clarity on the potential implications for animals. Evidence is reviewed concerning legal protections for animals, the use of animals for food and laboratory experiments, and public attitudes toward animals. Research on moral foundations theory is used to explain certa
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Gamberini, Andrea. The Ideology of the Regional State. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198824312.003.0015.

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This chapter analyses the way in which the Visconti justified their seigneury and their expansionist policies on an ethical and political level. They attempted to set themselves up as paladins in the war against tyranny—now seen not in its traditional sense as one of the degenerate forms of government, but as a division of the political body, a prime cause of war and an obstacle to peace. Through this intrepid conceptual twist, pro-Visconti circles were thus notably successful in deflecting any delegitimizing accusation away from their masters, while at the same time elaborating an ethico-poli
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Oklopcic, Zoran. A New Hope. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780198799092.003.0010.

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As the final chapter of the book, Chapter 10 confronts the limits of an imagination that is constitutional and constituent, as well as (e)utopian—oriented towards concrete visions of a better life. In doing so, the chapter confronts the role of Square, Triangle, and Circle—which subtly affect the way we think about legal hierarchy, popular sovereignty, and collective self-government. Building on that discussion, the chapter confronts the relationship between circularity, transparency, and iconography of ‘paradoxical’ origins of democratic constitutions. These representations are part of a broa
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Guerra Hernandez, Hector. Estudos africanos: abordagens e possibilidades heurísticas de uma área em construção interdisciplinar. Brazil Publishing, 2020. http://dx.doi.org/10.31012/978-65-990565-1-2.

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Scholars presently engaged in African History have to face obstacles inherent to the constraints which involve academic production and its regimens of truth. It is in the circle of academic debates that one may grasp the lack of epistemic autonomy not only in defining our own historical questions, but also our heuristic models and approaches. Being able to call into question such regimens of truth which sustain the production of knowledge about the African continent is contingent on the critical reframing of epistemic vantage points, in spite of the recognition that that the very conceptual fr
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Kasperbauer, T. J. Subhuman. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190695811.001.0001.

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This book provides an account of the moral psychology behind our attitudes to animals. Its main thesis is that behind both our positive and negative attitudes to animals is an underlying concern that animals pose a threat to our humanness. The book takes an interdisciplinary approach, drawing from research in philosophy, neuroscience, psychology, law, history, sociology, economics, and anthropology. The main thesis of the book is developed by looking at recent research on the phenomenon of dehumanization. Though dehumanization research is often applied only to human groups, it is argued that d
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Gartzke, Erik A., and Paul Poast. Empirically Assessing the Bargaining Theory of War: Potential and Challenges. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228637.013.274.

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What explains war? The so-called bargaining approach has evolved quickly in the past two decades, opening up important new possibilities and raising fundamental challenges to previous conventional thinking about the origins of political violence. Bargaining is intended to explain the causes of conflict on many levels, from interpersonal to international. War is not the product of any of a number of variables creating opportunity or willingness, but instead is caused by whatever factors prevent competitors from negotiating the settlements that result from fighting. Conflict is thus a bargaining
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Book chapters on the topic "Circle obstacle"

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M. Díaz-Fernández, Antonio. "Talking with Spies: From Naïve to Distrustful Researcher." In Fieldwork Experiences in Criminology and Security Studies. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-41574-6_1.

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AbstractIntelligence officers – generally known as ‘spies’ – will not openly admit, even within their own family circles, that they work for an intelligence service. These agencies have neither local offices nor facilities, nor do they visit schools to talk about the daily life and work of their officers. Public media appearances are extremely rare, and it is usually only the director of the agency whose face is seen in public. Innate secretiveness and the inaccessibility of many official archives are obstacles to transparent research on intelligence services. In 1998, I commenced my doctoral
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Nolan, Emer. "Ulysses, Narrative, and History." In James Joyce’s Ulysses. Oxford University PressNew York, NY, 2004. http://dx.doi.org/10.1093/oso/9780195158304.003.0008.

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Abstract The naive or mythical view of Irish history is important for readers of Joyce, since he uses it throughout Ulysses and Finnegans Wake. The fact that it is endlessly interesting to most Irish-men and inifnitely tedious to most Englishmen can be a serious obstacle to the understanding of Joyce’s major works. Toward the end of chapter 15 of Ulysses (“Circle”) Major Tweedy, father of Molly Bloom, and member of the Royal Dublin Fusiliers, who “rose from the ranks” (U 4.63–64) of the British army, confronts the Citizen, a dropsical Irish nationalist: “(Major Tweedy and the Citizen exhibit t
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"OBSTACLES AND OPPORTUNITIES:." In Circus Life. University of Tennessee Press, 2023. http://dx.doi.org/10.2307/jj.13083307.9.

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Turfus, C. "Minimizing Heat Loss into Creeping Flow Past a Cylinder." In Mathematics of Heat Transfer. Oxford University PressOxford, 1998. http://dx.doi.org/10.1093/oso/9780198503583.003.0036.

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Abstract The heat loss from a cylinder translating uniformly at low speed in an unbounded region of viscous fluid is considered. If the obstacle’s boundary is given by a conformal outer-radius-preserving mapping of a circle, a global maximum is achieved when the circle is mapped onto a line segment aligned parallel to the direction of motion. If the cylinder boundary is constrained to be an ellipse, a minimum occurs with a line segment aligned perpendicular to the direction of motion, although this is not a minimum in the space of general perturbations. The heat loss from star-shaped cylinders
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Nielsen, Richard P. "Single-, Double-, and Triple-Loop Politics: Overcoming Obstacles to Ethical Organization Behavior." In The Politics Of Ethics. Oxford University PressNew York, NY, 1996. http://dx.doi.org/10.1093/oso/9780195096651.003.0011.

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Abstract The present chapter circles back and examines how well the different methods discussed in chapters 4-10 can address the obstacles considered in chapter 2. The appropriateness and practicality of the politics of triple-loop dialog, double-loop dialog, win-win deal-making, winlose forcing, and internal due-process systems are considered in relation to the obstacles at the levels of the individual, tradition, and the environment. Why should we engage in dialog with each other and our traditions? Different people have different experiences, talents, perspectives, knowledge, and insights.
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Parc, Jimmyn, Patrick Messerlin, and Hwy-Chang Moon. "The Secret to the Success of K-Pop." In Corporate Espionage, Geopolitics, and Diplomacy Issues in International Business. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-1031-4.ch008.

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Today's mantra in many political and business circles is that stringent copyrights are needed for fostering cultural creativity and that piracy is the greatest obstacle toward creativity. If that were true, the success of Korean pop music or K-pop should never have occurred. This chapter seeks to explain this apparent paradox through three steps. First, today's mantra has little basis. Most of the existing world culture has been created without copyrights, and economic analysis stresses that stringent copyrights exacerbate monopolistic behavior that suffocates cultural. Second, this chapter an
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Finlay, Stephen. "Beyond Normativity." In The Future of Normativity. Oxford University PressOxford, 2025. https://doi.org/10.1093/9780198927761.003.0002.

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Abstract Abstract What is the future of normativity? What should that future be? This chapter employs the analogy of Samsara’s Wheel to characterize recent inquiry under the rubric ‘normativity’ as merely the latest epicycle in a futile circle of metaethical debate in which the same moves are reprised for different terms such as ‘ought’, ‘value’, ‘reasons’, ‘justification’, ‘authority’, ‘matters’, ‘fit’, et cetera. This futility is blamed on a four-way ambiguity running systematically throughout normative language. A two-dimensional, “perspectivist” diagnosis is provided of the difference betw
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Endelman, Todd M. "The Legitimization of the Diaspora Experience." In Broadening Jewish History. Liverpool University Press, 2010. http://dx.doi.org/10.3828/liverpool/9781904113010.003.0003.

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This chapter details promotion of Jewish integration into the mainstream of social, political, and cultural life as the major item on the agenda of Western Jewish leaders from the French Revolution to the Second World War. It discusses the communal energies of Jews that were devoted to removing legal obstacles to full equality, combating the bureaucratic discrimination that persisted after emancipation, countering defamation in media, and gaining entry to elite social circles and institutions. It also looks at the communal tensions between traditionalists and reformers over the modernization o
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Silva, Édi Mário Ferreira da, Elvio Carlos da Costa, and Yuri Mateus Vitalli. "The main challenges of small beginning entrepreneurs in the front of global competitiveness." In INTERDISCIPLINARITY AND INNOVATION IN SCIENTIFIC RESEARCH. Seven Editora, 2023. http://dx.doi.org/10.56238/interdiinovationscrese-068.

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The study provides important information for budding entrepreneurs facing challenges in the highly competitive global landscape. Faced with this fierce competitiveness, entrepreneurs are required to adopt effective strategies so that they can stand out and ensure their survival and success. The general objective was to analyze the main challenges faced by small beginning entrepreneurs in the face of global competitiveness. To this end, the specific objectives are: 1) raise and present possible solutions to the main obstacles faced by small beginning entrepreneurs; and 2) verify and contextuali
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Ortemberg, Pablo. "El odio a Bernardo Monteagudo como impulsor del primer gobierno autónomo del Perú." In El odio y el perdón en el Perú: siglos XVI al XXI. Pontificia Universidad Católica del Perú, 2023. http://dx.doi.org/10.18800/9789972428999.006.

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Hasta hace un tiempo no se conocía todavía con exactitud cuándo 1785 o 1789 y dónde Tucumán o Chuquisaca había nacido, y hasta hoy su crimen sigue siendo un misterio. Tampoco puede asegurarse que los restos repatriados a Buenos Aires fuesen de él. Su correspondencia personal se destruyó o extravió; no guardó un solo billete amoroso. Circula un retrato en el que se lo ve con la Orden del Sol en el pecho (figura 1), pero es apócrifo; el mismo pertenece a Bernardo Vera y Pintado patriota rioplatense que peleó en Chile. Uno de sus biógrafos propaló el engaño iconográfico por razones comerciales .
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Conference papers on the topic "Circle obstacle"

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Srinivas, Y. Lakshmi, and Steven N. Kramer. "An Algorithm for Real-Time Obstacle Avoidance and Path Planning for Mobile Robots." In ASME 1991 Design Technical Conferences. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/detc1991-0157.

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Abstract This paper presents an extremely fast and reliable sensor-based algorithm that utilizes a combination of optimization techniques and heuristics to accomplish obstacle avoidance and path planning of mobile robots in real-time. This algorithm assumes no previous knowledge of the workspace and is capable of dealing with arbitrarily shaped obstacles with arbitrary motion characteristics. The concept of feasible circle is introduced to determine an obstacle-free subspace around the robot using information which can be obtained from distance sensors. This algorithm employs a unified approac
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Feng, Penghang, Jie Zou, Huiyun Li, and Song Gao. "An Obstacle Avoidance Method for Autonomous Vehicle in Straight Road Based on Expanded Circle." In 2020 Asia-Pacific Conference on Image Processing, Electronics and Computers (IPEC). IEEE, 2020. http://dx.doi.org/10.1109/ipec49694.2020.9115118.

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Yang, Shiyuan, Ryota Matsuo, and Seiichi Serikawa. "Obstacle Detection Surrounding a Moving Object with Fisheye Camera and Circle Line Laser Light." In ACIT 2022: The 9th International Conference on Applied Computing & Information Technology. ACM, 2022. http://dx.doi.org/10.1145/3543895.3543942.

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Jiawen, Kang. "A study of obstacle avoidance problem for robots based on basic line-circle combinations." In 2023 3rd International Conference on Robotics, Automation and Intelligent Control (ICRAIC). IEEE, 2023. http://dx.doi.org/10.1109/icraic61978.2023.00079.

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Kim, Do-Hyeong, and Gon-Woo Kim. "Dual Expanded Guide Circle (Dual-EGC) algorithm for obstacle avoidance of remotely operated mobile robot." In 2017 14th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI). IEEE, 2017. http://dx.doi.org/10.1109/urai.2017.7992718.

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Tariq, Ammar, and Zhenyu Liu. "Slip Gas Flow and Heat Transfer in Confined Porous Media With Different Shape Cylinders." In ASME 2021 Heat Transfer Summer Conference collocated with the ASME 2021 15th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/ht2021-63408.

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Abstract With the recent advances in micro devices, an accurate gas flow and heat transfer analysis become more relevant considering the slip effect. A micro-scale, multiple-relaxation-time (MRT) lattice Boltzmann method with double distribution function approach is used to simulate flow and heat transfer through circular- and diamond-shaped cylinders at the porescale level. The velocity slip and temperature jump are captured at the boundaries using a non-equilibrium extrapolation scheme with the counter-extrapolation method. A pore-scale domain of micro-cylinders comprised of circle and diamo
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Li, Bin, Xiaobo Yang, Ankang Jin, Yunqing Zhang, and James Yang. "In-Plane Flexible Ring Tire Model Validation Through ADAMS FTire Model Virtual Tests." In ASME 2015 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/detc2015-46630.

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This paper presents the validation for the newly developed in-plane flexible ring tire model by using ADAMS FTire model simulation. The developed in-plane model is unique in two aspects: (1) the neighboring belt segments are connected through normal and tangential directions by springs and dampers, each belt segment is a rigid body and its mass is accumulated at its geometric center. Each belt segment is always perpendicular to the line formed by the wheel center and the belt geometric center, thus there is no rotational constrains between the neighboring belt segments; (2) the representation
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Zhu, Xiaoyuan, Jian Chen, Yan Ma, Jianqiang Deng, and Yuexuan Wang. "Predictive Motion Planning for Autonomous Vehicles With Geometric Constraints via Convex Optimization." In ASME 2020 Dynamic Systems and Control Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dscc2020-3169.

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Abstract In this paper, we propose an MPC-based motion planning algorithm, including a decision-making module, an obstacle-constraints generating module, and an MPC-based planning module. The designed decision module effectively distinguishes between structured and unstructured roads and processes them separately, so that the algorithm is more robust in different environments. Besides, the movement of obstacles is considered in the decision-making and obstacle constraints generating module. By processing obstacles with lateral and longitudinal speed separately, obstacle avoidance can be done i
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Abassi, Wafik, Fethi Aloui, Sassi Ben Nasrallah, Laurent Keirsbulck, and Jack Legrand. "Flow Behaviour Around Square and Circular Obstacles in 2D and 3D Configurations Using Lattice Boltzmann Method." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21211.

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The investigation of wakes of bluff bodies in a channel is still relevant despite the large number of works devoted on it, in both experimental and numerical studies. This attractiveness is mainly due to its related applications and practical interest in varied engineering fields. The understanding of dynamic flow behavior and the topology of the instability structures occurring in the wake is essential in order to optimize the obstacle shape according to the desired objectives. A confined laminar flow around a square and a circle, placed in a channel is numerically investigated in this work u
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Flanigen, Paul, Michael Wilson, Ella Atkins, and Nadine Sarter. "Studying the Effect of Sensor Visualization and Graphical Augmentation on Obstacle Detection Time in the Low Altitude Flight Environment." In Vertical Flight Society 79th Annual Forum & Technology Display. The Vertical Flight Society, 2023. http://dx.doi.org/10.4050/f-0079-2023-18021.

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Obstacle strikes are only behind controlled flight into terrain as the known cause of fatal civilian helicopter accidents. Failing to notice obstacles is also a leading cause of military rotor craft mishaps. This can be explained, in part, by the fact that aircrews must quickly notice and locate a wide variety of hazards, including vertical obstacles while performing various other flight-related tasks. This need for divided attention calls for the development of better bottom-up support for obstacle detection through display design. To this end, the present study will employ a within-subjects
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Reports on the topic "Circle obstacle"

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Saha, Devanik. Barriers and Sources of Resistance to Achieving Locally Led Development. Institute of Development Studies, 2024. http://dx.doi.org/10.19088/k4dd.2024.073.

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This review focuses on highlighting the key barriers and obstacles towards achieving locally led development[1] and localisation. While these terms are used interchangeably, the term ‘locally led development’ is more typically used in the international development literature, while localisation is more common in humanitarian circles. There are some issues around the lack of a globally agreed definition and consensus, such as how the lack of definition creates confusion among donors and stakeholders to approach and implement locally led development/localisation. There are no universally accepte
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Langlais, Pierre-Carl. Accès diamant. Comité pour la science ouverte, 2024. https://doi.org/10.52949/78.

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Contrairement à une idée répandue selon laquelle les publications en libre accès sont payées par leurs auteurs, de nombreux articles scientifiques sont diffusés sans frais pour les lecteurs et les auteurs (modèle « diamant »). En 2021, on estimait entre 17 000 et 29 000 le nombre de revues scientifiques reposant sur le modèle diamant. Les revues accessibles gratuitement représentaient 73 % des revues enregistrées dans le DOAJ (Directory of Open Access Journals). Le modèle diamant est présent à l’échelle mondiale. Il est particulièrement répandu en Amérique latine (95 % des revues) grâce à l’ém
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