Gotowe bibliografie tematyczne / Hot obstacles

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Gotowa bibliografia na temat „Hot obstacles”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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Artykuły w czasopismach na temat "Hot obstacles"

Weclas, M., and R. Faltermeier. "Diesel jet impingement on small cylindrical obstacles for mixture homogenization by late injection strategy." International Journal of Engine Research 8, no. 5 (2007): 399–413. http://dx.doi.org/10.1243/14680874jer01107.

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The paper deals with ‘destroying’ a high-velocity diesel fuel jet by impingement on small cylindrical obstacles. This process permits very quick jet distribution in the volume. Essential is a process of impingement on a first obstacle: its diameter, distance from the nozzle outlet, and injection pressure play a dominant role in characterizing jet distribution in space. This spatial distribution is based on a multijet model, initially observed by diesel jet impingement on a porous structure. In diesel jet impingement on a single obstacle with a smaller diameter (d=1 mm), the distribution angle

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Ma, Yuan, Rasul Mohebbi, Mohammad Mehdi Rashidi, and Zhigang Yang. "Effect of hot obstacle position on natural convection heat transfer of MWCNTs-water nanofluid in U-shaped enclosure using lattice Boltzmann method." International Journal of Numerical Methods for Heat & Fluid Flow 29, no. 1 (2019): 223–50. http://dx.doi.org/10.1108/hff-01-2018-0004.

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Purpose This paper aims to numerically investigate the natural convection heat transfer of multi-wall carbon nanotubes (MWCNTs)-water nanofluid in U-shaped enclosure equipped with a hot obstacle by using the lattice Boltzmann method. Design/methodology/approach The combination of the three topics (U-shaped enclosure, different positions of the hot obstacle and MWCNTs-water nanofluid) is innovative in the present study. In total, 15 different positions of the hot obstacle have been arranged, and the effects of pertinent parameters such as Rayleigh numbers, the solid volume fraction of the MWCNT

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Cai, Zhihao, Henry Tan, Jiang Zhao, and Yingxun Wang. "Target detection and obstacle avoidance for UAV based on dynamic vision sensor." Journal of Applied Artificial Intelligence 1, no. 1 (2024): 192–214. http://dx.doi.org/10.59782/aai.v1i1.285.

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Aiming at the problem of UAV sensing dynamic targets and avoiding high-speed dynamic obstacles in dynamic environments, a target detection and obstacle avoidance algorithm based on dynamic vision sensor is designed. A filtering method and motion compensation algorithm are designed to filter out background noise and hot spot noise in the event stream as well as redundant events caused by the camera's own motion. A dynamic target fusion detection algorithm that fuses event images and RGB images is designed to ensure the reliability of detection. The target motion trajectory is estimated based on

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Ma, Yanan, Qiong Shen, and Lei Tian. "Obstacles to the Development of BIM in China's Prefabricated Construction: A Decision-making Test and Evaluation Laboratory (DEMATEL) Model." SHS Web of Conferences 96 (2021): 01003. http://dx.doi.org/10.1051/shsconf/20219601003.

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With the continuous progress of the time, technology is also developing rapidly, among which Building Information Modeling (BIM) has also become a hot topic in prefabricated constructions. Previous research has made it clear that BIM can promote the development of prefabricated construction. However, in practical applications, BIM technology has not been well developed in prefabricated construction. In order to find out the obstacles to the development of BIM technology in China's prefabricated construction, and identify the relationship between obstacles, this study identified 20 obstacles th

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Liu, Wei. "Real-Time Obstacle Detection Based on Image Semantic Segmentation and Fusion Network." Traitement du Signal 38, no. 2 (2021): 443–49. http://dx.doi.org/10.18280/ts.380223.

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During fruit production, the robots must walk stably across the orchard, and detect the obstacles in real time on its path. With the rapid process of deep convolutional neural network (CNN), it is now a hot topic to enable orchard robots to detect obstacles through image semantic segmentation. However, most such obstacle detection schemes are under performing in the complex environment of orchards. To solve the problem, this paper proposes an image semantic fusion network for real-time detection of small obstacles. Two branches were set up to extract features from red-green-blue (RGB) image an

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Stevens, Stan. "Article: Small Is Beautiful: An Analysis of the HOT Proposal." EC Tax Review 33, Issue 6 (2024): 223–37. https://doi.org/10.54648/ecta2024025.

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The European Commission has published in 2023 a proposal to introduce a concept of Head Office Taxation (HOT) for small and medium sized entities by means of a directive. In April 2024 the European Parliament has adopted a legislative resolution. The purpose of the proposal is to reduce the current tax obstacles for SMEs to engage in cross border activities. In the article the author evaluates the HOT Proposal. The most relevant obstacles for SMEs are the compliance costs and the absence of the possibility to deduct cross border losses. The HOT Proposal addresses in particular the issue of com

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Altuntop, Necdet, Mevlut Arslan, Veysel Ozceyhan, and Mehmet Kanoglu. "Effect of obstacles on thermal stratification in hot water storage tanks." Applied Thermal Engineering 25, no. 14-15 (2005): 2285–98. http://dx.doi.org/10.1016/j.applthermaleng.2004.12.013.

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Tan, Chee Yong, Sunan Huang, Kok Kiong Tan, Rodney Swee Huat Teo, Wen Qi Liu, and Feng Lin. "Collision Avoidance Design on Unmanned Aerial Vehicle in 3D Space." Unmanned Systems 06, no. 04 (2018): 277–95. http://dx.doi.org/10.1142/s2301385018500115.

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Collision avoidance is one of the core problems in designing a multi-unmanned aerial vehicle (UAV) system. It is to ensure each UAV can reach its target without colliding with any moving or static obstacles. With increasing usage of UAVs in many application areas, research on collision avoidance algorithm has become a hot topic. Several approaches on collision avoidance have been reported. In this paper, we design a three-dimensional collision avoidance on multi-UAV systems based on the original three-dimensional velocity obstacle method.

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Yang, Zhenjie, Muhammad Ameen, Yilu Yang, et al. "Study on the Temperature and Water Distribution of Hot Air in Red Loam Based on Soil Continuous Cropping Obstacles." Agriculture 14, no. 4 (2024): 588. http://dx.doi.org/10.3390/agriculture14040588.

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In recent years, the problematic circumstances of the constant cropping problem in facility crops have become increasingly serious. Compared to chemical disinfection, soil steam disinfestation offers the benefits of environmental protection and being pollution-free, which can effectively reduce the problem of constant cropping in crops. However, during the steam disinfection procedure, a large quantity of liquid water is formed due to the condensation of high-temperature steam, which causes soil pore blockage, seriously affecting the mass and heat transfer efficacy of steam and, thus, affectin

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Li, Yue, Wei Han, Qingyang Chen, and Yong Zhang. "Real-Time Obstacle Avoidance for Manned/Unmanned Aircraft Cooperative System Based on Improved Velocity Obstacle Method." Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University 38, no. 2 (2020): 309–18. http://dx.doi.org/10.1051/jnwpu/20203820309.

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To adapt the autonomous level of agents in current, and to perform the advantages of multi-agent in air combat, the form of manned/unmanned aircraft cooperative system has gradually become a hot topic. To solve the issue of three-dimensional (3D) real-time obstacle avoidance, the 3D maneuvering obstacle model is established firstly based on the traditional velocity obstacle method. Then the flight mode is selected and the optimal obstacle avoidance plane is determined by setting the Right-of-way rules when the system encountering obstacles. Finally, the difference of obstacle avoidance plane,

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Rozprawy doktorskie na temat "Hot obstacles"

Bergdahl, Emma. "Hinder och möjligheter för företagssköterskor vid införandet av goda matvanor hos företag." Thesis, Högskolan i Gävle, Avdelningen för arbets- och folkhälsovetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-13772.

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Abstract Emma Bergdahl Obstacles and opportunities among occupational health nurses when implementing healthy eating habits. C thesis in Public Health. Faculty of Health and Occupational Studies. University of Gävle. Autumn 2012 Objective: The purpose of this study was to investigate which obstacles and opportunities nurses within occupational health find when trying to implement healthy eating habits among the employees in their respective company. Another objective was to see if the nurses worked according to the Guidelines, issued by the National Board of Health and Welfare. Method: The

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Wilhelmsson, Maria, and Frida Jönsson. "Röjning - drivkrafter och hinder hos privata skogsägare." Thesis, Linnéuniversitetet, Institutionen för skog och träteknik (SOT), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-96509.

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Röjningsbehovet i Sverige är stort och de flesta skogliga myndigheter och organisationer är överens om att röjningsaktiviteten bör öka. Denna studie syftar till att undersöka drivkrafter och hinder hos olika kategorier av privata skogsägare och om detta kan användas av skogsföretag för att öka röjningsaktiviteten genom att anpassa kommunikationen. Studien har genomförts i samarbete med Södra och är gjord i tre steg; webbenkät, kategorisering och intervjuer. Resultaten visar att drivkrafterna ekonomi, fritid och naturupplevelsen samt tillfredställelse/stolthet dominerar i båda kategorierna. Hin

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Cristaldi, Salvatore. "Distributed Algorithms for the Configuration and Management of Wireless Ad-Hoc Networks with Movable Base Stations constrained by Motion and Communication Obstacles." Thesis, Università degli Studi di Catania, 2011. http://hdl.handle.net/10761/185.

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In this thesis, we propose a protocol for dynamic reconfiguration of ad-hoc wireless networks with movable base stations in presence of obstacles. Hosts are assigned to base stations according to a probabilistic throughput function based on both the quality of the signal and the base station load. In order to optimize space coverage, base stations cluster hosts using a distributed clustering algorithm. Obstacles may interfere with transmission and obstruct base stations and hosts movement. To overcome this problem, we perform base stations repositioning making use of a motion planning algorith

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Kim, Nam Shin. "Analyse expérimentale d'un jet turbulent impactant sur un plaque plane et sur un obstacle de section carrée." Toulouse 3, 2005. http://www.theses.fr/2005TOU30074.

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Cette étude aborde l'impact d'un jet sur une plaque plane et sur un obstacle de section carrée. L'objectif de ce travail est l'analyse expérimentale de l'écoulement, et du transfert de chaleur associé, lorsque la surface est chauffée à densité de flux constante. Les mesures de vitesse et de turbulence ont été menées par la Vélocimétrie par Images des Particules (PIV) et l'anémométrie à fil chaud, ce qui a permis la mesure de chaque composante et du champ complet en particulier au voisinage des parois. Différents post-traitements de la PIV ont permis une nette amélioration de l'évaluation des f

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Andersson, Charlotte, and Frida Axelsson. "Att tillämpa personcentrerad vård hos personer med demenssjukdom i ordinärt boende : En kvalitativ intervjustudie om sjuksköterskors erfarenheter." Thesis, Högskolan Dalarna, Omvårdnad, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:du-30127.

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Bakgrund: Utvecklingen är att fler och fler drabbas av demenssjukdom vilket innebär att antalet personer som får vård i ordinärt boende kommer att öka. Vården som ges ska vara personcentrerad och underlätta vardagen samt bidra till en ökad livskvalitet för personen. Syfte: Att undersöka vilka hinder och möjligheter som påverkar sjuksköterskans arbete med att tillämpa personcentrerad vård för personer med demenssjukdom i ordinärt boende. Metod: En kvalitativ design med semistrukturerade intervjuer. Sjuksköterskor som arbetar i hemsjukvården och besöker personer med demenssjukdom har intervjuat

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Kurdej, Marek. "Exploitation of map data for the perception of intelligent vehicles." Thesis, Compiègne, 2015. http://www.theses.fr/2015COMP2174/document.

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La plupart des logiciels contrôlant les véhicules intelligents traite de la compréhension de la scène. De nombreuses méthodes existent actuellement pour percevoir les obstacles de façon automatique. La majorité d’entre elles emploie ainsi les capteurs extéroceptifs comme des caméras ou des lidars. Cette thèse porte sur les domaines de la robotique et de la fusion d’information et s’intéresse aux systèmes d’information géographique. Nous étudions ainsi l’utilité d’ajouter des cartes numériques, qui cartographient le milieu urbain dans lequel évolue le véhicule, en tant que capteur virtuel améli

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Chong, Yu-Xun, and 鍾雨勳. "Apply Wireless Ad-hoc Network Algorithm in Redistribution Obstacle-Avoiding." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/07464279588607546813.

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碩士<br>淡江大學<br>電機工程學系碩士班<br>104<br>Redistribution layer(RDL), which abundantly applied on Flip-chip technology in recent years. Flip-chip is similar to conventional IC fabrication with a few additional steps, the chip is inverted to bring the solder down so that the solder balls are facing the connections on the external circuit. Then the solder re-melt to produce an electrical connection, and use insulator to fix the substrate. However, the I/O ports of Flip-chip technology does not have plane array design, so it faced a huge challenge that the design of redistribution layer appeared. Redi

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Książki na temat "Hot obstacles"

Fogel, Kathy, Ashton Hawk, Randall Morck, and Bernard Yeung. Institutional Obstacles to Entrepreneurship. Edited by Anuradha Basu, Mark Casson, Nigel Wadeson, and Bernard Yeung. Oxford University Press, 2009. http://dx.doi.org/10.1093/oxfordhb/9780199546992.003.0020.

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This article focuses on institutional obstacles to entrepreneurship. Entrepreneurs carry out a highly complicated composite act. They need intelligence to collect and digest information about business opportunities. They need foresight about the possibilities new technologies and other developments create. They need judgement and leadership skills to found a company and guide its growth. They need communication skills to enthuse financiers to back their vision. The number of active entrepreneurs therefore depends on how many individuals possess these skills. But skills are not endowments. Indi

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Fakih, Danny. Hit the Trails: A Beginners Guide to Obstacle Course Racing. Independently Published, 2021.

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Magida, David, and Melissa Rodriguez. The Essentials of Obstacle Race Training. Human Kinetics, 2016. http://dx.doi.org/10.5040/9781718225190.

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Scaling walls, crawling through mud, climbing ropes, and sprinting across rugged terrain. Obstacle course racing is one of the fastest-growing sports in the United States, and it’s gaining popularity around the world. The sport is grueling, demanding, and intensely satisfying if you prepare, train, and know what to expect. Only The Essentials of Obstacle Race Training can ensure you will be ready. Authored by David Magida, founder of Elevate Interval Fitness, founding member of the Spartan Race pro team, and host of “Spartan Race” on NBC Sports; and Melissa Rodriguez, former contributing edito

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Rayburn, Carole A., Florence L. Denmark, Mary E. Reuder, and Asuncion Miteria Austria. A Handbook for Women Mentors. ABC-CLIO, LLC, 2010. http://dx.doi.org/10.5040/9798400661129.

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This perceptive and practical guide explores the growing phenomenon of successful women serving as mentors to other women in academia or in professional careers. In this unprecedented handbook, the team of coeditors and contributors show the immeasurable impact of women helping women via a method that has become a ““hot-button”” topic nationwide—mentoring. In A Handbook for Women Mentors: Transcending Barriers of Stereotype, Race, and Ethnicity, an expert author team—all experienced mentors—provide specific strategies for women mentoring women, showing how mentoring relationships benefit indiv

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Brand, Bethany L., Hugo J. Schielke, Francesca Schiavone, and Ruth A. Lanius. Finding Solid Ground: Overcoming Obstacles in Trauma Treatment. Oxford University Press, 2022. http://dx.doi.org/10.1093/med-psych/9780190636081.001.0001.

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Even seasoned clinicians can feel deskilled when trying to help to highly traumatized and dissociative patients. Together, this book and its accompanying workbook for patients provide an evidence-informed, pragmatic, and compassionate approach to the stabilization and treatment of complex trauma and dissociation. These books will help clinicians immediately implement ways to assess and treat traumatized individuals with a comprehensive therapeutic program that includes session-by-session Information Sheets and Exercises developed through the process of synthesizing decades of clinical experien

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Felchner, Morgan, ed. Voting in America. Praeger, 2008. http://dx.doi.org/10.5040/9798216991274.

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The three volumes of Voting in America offer the most comprehensive, authoritative, and useful account of all aspects of voting in America ever assembled. This set surveys the legal foundations, historical development, and geographic diversity of voting practices at all levels of government in the United States. It marshals the demographics of voter participation and party affiliation in the 21st century by age, occupation, location, region, class, race, and religion, and parses the roles of interest groups, hot-button issues, and the media in mobilizing voters and shaping their decisions. Fin

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Felchner, Morgan E., ed. Voting in America. Greenwood Publishing Group, Inc., 2008. http://dx.doi.org/10.5040/9798216991298.

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Felchner, Morgan E., ed. Voting in America. Greenwood Publishing Group, Inc., 2008. http://dx.doi.org/10.5040/9798216991281.

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Sena, Joe De. Spartan Up!: A Take-No-Prisoners Guide to Overcoming Obstacles and Achieving Peak Performance in Life. Houghton Mifflin Harcourt Publishing Company, 2014.

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Sena, Joe De. Spartan Up!: A Take-No-Prisoners Guide to Overcoming Obstacles and Achieving Peak Performance in Life. Simon & Schuster, Limited, 2014.

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Części książek na temat "Hot obstacles"

Killman, Jeffrey. "Machine translation and legal terminology." In Handbook of Terminology. John Benjamins Publishing Company, 2023. http://dx.doi.org/10.1075/hot.3.mac2.

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This chapter addresses machine translation (MT) with an eye to legal terminology. The translation of legal terms and phrasemes may be fraught with contextual complexities, and context has long been the Achilles’ heel of MT. Nevertheless, neural MT (NMT) and statistical MT (SMT) have made considerable progress in recent years, thanks to data-driven approaches making use of potentially related corpora to overcome contextual obstacles. Such approaches and the potential frozenness or repetitiveness of legal terms and phrases may allow MT to overcome some of these obstacles. This chapter reviews co

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Zawawi, Fazila Mohd, and Mustafa Abdulkareem Hussein. "Study the Implementation of Hybrid PV/Wind System in Hot Region, Low Wind Speed; Challenges, Obstacles, and Prospects; Case of Samawah, Iraq." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-6874-9_22.

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Silveira, Sofia A. M., Joelma Choma, Roberto Pereira, Eduardo M. Guerra, and Luciana A. M. Zaina. "UX Work in Software Start-Ups: Challenges from the Current State of Practice." In Lecture Notes in Business Information Processing. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78098-2_2.

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AbstractSoftware start-ups develop innovative software products working with disruptive technologies in time pressure and market-driven environment. Recently, User eXperience (UX) has become a hot topic that interests software teams of start-ups. However, software and UX professionals have struggled to match UX practices into the development activities, partially because of the lack of resources in the start-ups. This paper investigates how software start-ups handle UX activities during software development and how relevant UX is to these companies’ professionals. To achieve our aim, we survey

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Bencze, Mátyás. "Obstacles and Opportunities—Measuring the Quality of Judicial Reasoning." In How to Measure the Quality of Judicial Reasoning. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-97316-6_6.

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Lehmann, Alexander, and Dieter Landes. "Tackling Learning Obstacles in Learning Videos by Thematic Ad-Hoc Recommendations." In Towards a Hybrid, Flexible and Socially Engaged Higher Education. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-51979-6_49.

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Dryden, Windy. "Thinking and Intervening Related to Dealing with Obstacles to Change." In How to Think and Intervene Like an REBT Therapist, 2nd ed. Routledge, 2024. http://dx.doi.org/10.4324/9781032657721-12.

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Gao, Qiang, Tetsuya Shigeyasu, and Chunxiang Chen. "Routing Strategy for Avoiding Obstacles During Message Forwarding in Mobile Ad-Hoc Network." In Innovative Mobile and Internet Services in Ubiquitous Computing. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-79728-7_14.

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Shalini, S., and Annapurna P. Patil. "Obstacle-Aware Radio Propagation and Environmental Model for Hybrid Vehicular Ad hoc Network." In Inventive Computation and Information Technologies. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-4305-4_38.

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Liu, Ronghua, Xin Wang, Di Wu, and Chunyuan Xie. "Improved Bidirectional Dynamic JPS Algorithm for Global Path Planning of Mobile Robot." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_83.

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AbstractThis paper proposed to improve the bidirectional dynamic JPS algorithm in order to address the issues with the jump point search algorithm in the process of pathfinding, such as numerous path inflection points, numerous intermediate search hop points, numerous extended nodes, and lengthy pathfinding time in the process of finding jump points. The algorithm was based on the two-way dynamic hopping point search algorithm, defined the target points in the forward and reverse expansion directions dynamically, defined the heuristic function dynamically. In the process of searching each othe

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Mliki, Bouchmel, Mohamed Ammar Abbassi, and Fateh Mebarek-Oudina. "Simulation of Magnetic Hybrid Nanofluid (Al2O3-Cu/H2O) Effect on Natural Convection and Entropy Generation in a Square Enclosure with a Hot Obstacle." In Mathematical Modelling of Fluid Dynamics and Nanofluids. CRC Press, 2023. http://dx.doi.org/10.1201/9781003299608-30.

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Streszczenia konferencji na temat "Hot obstacles"

MacDonald, J. P., and P. Stonehart. "Carbon Composites in Phosphoric Acid Fuel Cells: Corrosion Challenges and Solutions." In CORROSION 1986. NACE International, 1986. https://doi.org/10.5006/c1986-86081.

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Abstract The Dipolar plate, fabricated from a graphite/resin composite, has been cited as an obstacle to achieving long Lifetimes in hot phosphoric acid fuel cells. One problem which has been associated with this component is corrosion, both chemical and electrochemical, at the cathode side. Corrective approaches which have been explored at various facilities are discussed.

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Brajovic, Vladimir, Chenhao Han, and Lucas de. "Visual Detection of Moving Ground Obstacles for Full-Size Autonomous Aircraft Landing." In Vertical Flight Society 74th Annual Forum & Technology Display. The Vertical Flight Society, 2018. http://dx.doi.org/10.4050/f-0074-2018-12924.

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Full-size autonomous rotorcraft flying multi-hop missions must be able to react quickly to unsafe landing conditions, such as moving ground vehicle activity in the landing zone (LZ). In this paper, an algorithm is presented which detects moving ground vehicles from distances of 120 m to 500 m (394 ft to 1640 ft), using monocular visual-spectrum video and pose information. The approach requires few assumptions on the object being detected (contiguous appearance and discernible contrast against the ground), allowing for detection of different sizes and shapes of moving objects. The performance o

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Srilakshmi, Ufpalapati, and Bandla Srinivasrao. "Expression of Concern for: An evaluation of exposure and obstacle technique and its reply over mobile ad-hoc network." In 2017 International Conference on I-SMAC (IoT in Social, Mobile, Analytics and Cloud) (I-SMAC). IEEE, 2017. http://dx.doi.org/10.1109/i-smac39767.2017.10702670.

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Altuntop, Necdet, Veysel Ozceyhan, Yusuf Tekin, and Sibel Gunes. "The Effect of Obstacle Geometry and Position on Thermal Stratification in Solar Hot Water Storage Tanks." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56040.

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In this study the effect of obstacle geometry and its position on thermal stratification in solar powered domestic hot water storage tanks are numerically investigated. The goal of this study is to obtain higher thermal stratification and supply hot water for usage as long as possible. The temperature distributions are presented for three different obstacle geometries (1, 2 and 3) and six different distances (f = 0.3, 0.4, 0.5, 0.6, 0.7 and 0.8 mm) from the bottom of the hot water storage tank. The numerical method is validated using both experimental and numerical results available in the lit

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Dargush, G. F., and P. K. Banerjee. "Development of an Integrated BEM for Hot Fluid-Structure Interaction." In ASME 1989 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1989. http://dx.doi.org/10.1115/89-gt-128.

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A boundary element approach is developed for problems of hot fluid-structure interaction. The structure is idealized as a thermoelastic solid, and a time-domain, boundary-only integral formulation is described. Meanwhile, several approaches are discussed for the hot fluid. Integral equations are developed for both compressible and incompressible thermoviscous flow. Due to the presence of nonlinear convective terms in the governing differential equations, domain discretization is generally required. However, with the introduction of reference velocities, volume modeling often can be confined to

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Zheng, Jiawei, Qingchun Lei, Jiannan He, Yeqing Chi, and Wei Fan. "Comparison of Detonation Initiation by Hot Jet and Obstacles Studied via Chemiluminescence Imaging at 200 kHz." In 2018 Aerodynamic Measurement Technology and Ground Testing Conference. American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-3947.

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Zheng, Jiawei, Qingchun Lei, Jiannan He, Yeqing Chi, and Wei Fan. "Withdrawal: Comparison of Detonation Initiation by Hot Jet and Obstacles Studied via Chemiluminescence Imaging at 200 kHz." In 2018 Aerodynamic Measurement Technology and Ground Testing Conference. American Institute of Aeronautics and Astronautics, 2018. http://dx.doi.org/10.2514/6.2018-3947.c1.

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Kneer, Johannes, Carol Eastwick, Armin Mu¨ller, Graham Johnson, Adam Robinson, and Hans-Jo¨rg Bauer. "Experimental Investigations of Film Flows Around Obstacles." In ASME Turbo Expo 2008: Power for Land, Sea, and Air. ASMEDC, 2008. http://dx.doi.org/10.1115/gt2008-50630.

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Within an aero-engine bearing chamber oil is provided to components to lubricate and cool. This oil forms a moving film around the inside of the bearing chamber which provides cooling to the chamber walls. Where the walls have features such as bolt heads or bearing supports protruding from the surface the oil film is forced to flow either over or around these features. If the film becomes too thin, or dries out, the cooling becomes ineffective and local hot spots occur which can precipitate coking. The work reported in this paper is a continuation from two previous papers [9, 10] using experim

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Bourgeois, Jason A., Pooria Sattari, and Robert J. Martinuzzi. "Quasi-Periodic Structure of Vortical Flows Produced in the Wake of Finite Bluff Bodies Partially Immersed in a Boundary Layer." In ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2010. http://dx.doi.org/10.1115/fedsm-icnmm2010-30804.

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The quasi-periodic vortex shedding structure in the wake of finite surface-mounted square- and circular-cross-section cylinders is investigated for several aspect ratios. Complex continuous wavelet transforms (CWT’s) are used to obtain a phase function φ(t) from hot-wire measurements. Mean relative phases and phase averaged particle image velocimetry (PIV) measurements indicate an upstream bending of the initially vertical shed vortex structures for all obstacles investigated. This upstream bending mechanism reorients vorticity streamwise and is described in terms of Biot-Savart induction that

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Andrews, Gordon E., and Ibrahim M. Khalifa. "Planar Duct Heat Transfer With Turbulence Enhancing Obstacles for Combustor Liner External Cooling." In ASME Turbo Expo 2007: Power for Land, Sea, and Air. ASMEDC, 2007. http://dx.doi.org/10.1115/gt2007-27418.

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Parallel plate combustor wall cooling was investigated. The combustor air flowed down the gap between two flat surfaces in a low pressure loss configuration. The work was aimed at combustor liner external air cooling for regenerative combustor cooling prior to entering a lean low NOx combustor. The test rig was 152 mm square and the test section was a duct of 152mm width and height of 10 and 5mm with a 152mm length. The experimental investigation involved the measurement of the heat transfer coefficient using the lumped capacity method. together with overall wall cooling effectiveness measurem

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Raporty organizacyjne na temat "Hot obstacles"

Callais, Justin T. Economic Freedom and Social Mobility: What Does It mean for Puerto Rico? Instituto de Libertad Económica, 2023. http://dx.doi.org/10.53095/13582010.

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Social and income mobility has become a hot topic among social scientists and policymakers. Few, though, have examined the role of economic freedom in explaining differences in mobility. I summarize my work showing that economic freedom has a strong impact on improving mobility. I discuss the implications of these findings for Puerto Ricans. Puerto Rico scores relatively well in the regulatory aspects of economic freedom; however, fixing the barriers regarding registering and transferring property, overly burdensome taxes, and overall tax compliance is important. Addressing these obstacles can

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Beaudry, Catherine, and Charles Bérubé. Undeterred and (somewhat) successful – How Canadian firms mitigate innovation barriers to remain innovative ? CIRANO, 2025. https://doi.org/10.54932/oidv6447.

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This paper disentangles the actions that firms took to mitigate financial and nonfinancial innovation barriers and offers a first assessment of the role of government support programs for innovation related activities in relation with these perceived innovation obstacles. Our results show that firms that face financial constraints cannot completely overcome these innovation barriers. When not financially constrained however, firms that choose to be undeterred by the obstacles they face and takes successful measures or use government programs are either equally or more innovative than firms tha

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Buvinic, Mayra, and Andrew Morrison. Violence as an Obstacle to Development. Inter-American Development Bank, 1999. http://dx.doi.org/10.18235/0008931.

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This document is one of a series of technical notes that describe the nature and magnitude of violence in the region, its causes and effects, and how it can be prevented and controlled. The notes provide useful information on designing programs and policies to prevent and deal with violence. This note focuses on the economic and non-economic costs of violence. The authors show how violence impedes economic development. From a macroeconomic point of view, violence reduces foreign and domestic investment as well as domestic savings, thus hindering prospects for long term growth. From the microec

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Quak, Evert-jan. Implementation Obstacles and Political Appeal of Environmental Taxes in Sub-Saharan Africa: Reflections from Selected Countries. Institute of Development Studies, 2024. http://dx.doi.org/10.19088/ictd.2024.079.

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Low-income countries (LICs) are looking at the potential of environmental taxes – such as charges on air pollutants, levies on household waste, and taxes on energy use – to increase revenue and tackle environmental issues. LICs are slow to adopt environmental taxes, and international financial institutions, multilateral development banks, and international donors are helping LIC governments assess them. Little is known about the institutional, administrative, and political obstacles leading to slow adoption of environmental taxes, and how these taxes can be made more appealing, especially in s

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Corsetto, Lisa, and Simon Cooper. Reducing search barriers for job seekers. J-PAL, 2022. http://dx.doi.org/10.31485/pi.2234.2022.

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Programs focused on reducing job search barriers often improve job seekers’ employment outcomes. These programs can help job seekers increase their search effort, identify where and how to look for jobs, surmount geographic and financial obstacles to finding a job, and communicate qualifications to employers.

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Occhiali, Giovanni. Implementation Obstacles and Political Appeal of Environmental Taxes in Sub-Saharan Africa: Reflections from Selected Countries. Institute of Development Studies, 2023. http://dx.doi.org/10.19088/ictd.2023.058.

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Increasing the slow pace of adoption of environmental taxes across low-income countries has become a significant priority among international financial institutions, multilateral development banks, and international donors. Yet little is known about the practical institutional, administrative, and political obstacles that have led to their slow implementation and how they can be made more appealing, especially across sub-Saharan Africa. Based on an extensive literature review and 16 in-depth interviews with ministries of finance, revenue authorities, and other government stakeholders across si

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Mares, David R. The New Energy Landscape: Shale Gas in Latin America. Inter-American Development Bank, 2012. http://dx.doi.org/10.18235/0006947.

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This paper examines the potential for shale gas in Latin America, and the technical and institutional obstacles to the industry's development. The first part of the paper analyzes the characteristics of the shale gas revolution that developed in the U.S. and highlights its precarious nature, the requirements for its initial development, and future prospects. The second part turns to the Latin American context - with a focus on Argentina and México - drawing on the lessons from the U.S. experience to postulate where the significant obstacles to shale gas production in the region lie, why succes

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Grenet, Julien, Hans Grönqvist, Edvin Hertegård, and Martin Nybom. How Early Career Choices Adjust to Economic Crises. Department of Economics and Statistics, Linnaeus University, 2024. http://dx.doi.org/10.15626/ns.wp.2024.13.

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We study how students adjust their early career choices in response to economic crises, and how this behavioral response affects their long-run labor market outcomes. We specifically examine the context of the severe recession that struck Sweden in the early 1990s, which disproportionally affected the manufacturing and construction sectors. We find that students who experienced paternal job loss in these heavily affected sectors were more likely to choose high school programs linked to sectors less impacted by the recession. These individuals achieved better labor market outcomes in adulthood,

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Powell, Andrew. 2015 Latin American and Caribbean Macroeconomic Report: The Labyrinth: How Can Latin America and the Caribbean Navigate the Global Economy. Inter-American Development Bank, 2015. http://dx.doi.org/10.18235/0005861.

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The 2015 Latin American and Caribbean Macroeconomic Report argues that the region is in the midst of a labyrinth and must navigate several global and domestic obstacles -including lower commodity prices and new types of financial risks- to ensure strong and sustainable growth. The report suggests that many countries must make fiscal adjustments to avoid higher debt without compromising the significant social gains of recent years, and details both the types and speed of policies that may be adopted. The report urges each country to fashion its own specific response based on its particular circ

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Cafferata, Fernando G., Bridget Lynn Hoffmann, and Carlos Scartascini. How Can We Improve Air Pollution?: Try Increasing Trust First. Inter-American Development Bank, 2021. http://dx.doi.org/10.18235/0003453.

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Environmental policies are characterized by salient short-term costs and long-term benefits that are difficult to observe and to attribute to the government's efforts. These characteristics imply that citizens' support for environmental policies is highly dependent on their trust in the government's capability to implement solutions and commitment to investments in those policies. Using novel survey data from Mexico City, we show that trust in the government is positively correlated with citizens' willingness to support an additional tax approximately equal to a days minimum wage to improve ai

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