Literatura académica sobre el tema "Stepped repair"

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Artículos de revistas sobre el tema "Stepped repair"

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Li, Hui, Cheng Chen, Tongguang Wang, and Long Wang. "Experimental Study of Stepped-Lap Scarf Joint Repair for Spar Cap Damage of Wind Turbine Blade in Service." Applied Sciences 10, no. 3 (2020): 922. http://dx.doi.org/10.3390/app10030922.

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The objective of this paper was to design configuration parameters for a stepped-lap scarf joint repair, which can be used for spar cap damage of a wind turbine blade in service and to realize the post-repair monitoring. Two experimental studies were included. First, tensile test for the unidirectional tape specimens with a large aspect ratio repaired using a multiple stepped-lap scarf joint method was carried out. The results showed that the reinforcement layer could effectively improve the load-carrying capacity of the repaired zone. The stepped-lap joint surface was identified as the weak p
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Han, Shanling, Zhen Cui, Fengjie Yuan, Xiaodong Li, and Yong Li. "Study on the performance of CFRP stepped-lap repair for aerospace." Journal of Physics: Conference Series 2977, no. 1 (2025): 012034. https://doi.org/10.1088/1742-6596/2977/1/012034.

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Abstract In this paper, a novel progressive damage model of stepped-lap repair structure is established. The ultimate load of CFRP stepped-lap repair structure under uniaxial tension is studied. The accuracy of the simulation results is verified by experiments. Then, the influence of the number of different steps is systematically studied for the first time. The progressive damage analysis of the repaired structure is carried out. Finally, the influence of the slope on the repair is discussed. The results show that the failure load of the four-step repair is the highest. The damage of the adhe
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Zhang, Kaomin, Zhenhu Miao, Haiting Xia, Xiaoyu Yang, Fenglin Tian, and Yinghui Zhao. "Effects of Repair Interface Structure on Mechanical Properties of Scarf Repair for Composite Laminate Plates." Polymers 17, no. 4 (2025): 511. https://doi.org/10.3390/polym17040511.

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The structural damage repair of composite material is an important issue that needs to be addressed during the service life of composite materials. To investigate the effects of a scarf structure and scarf angle on the repair quality of composite material, this paper proposes a mixed-scarf (MS) repair structure that combines ramped-scarf (RS) and stepped-scarf (SS) repair structures. The effect of the repair structure on the mechanical properties was analyzed, as well as the quality of the adhesive interface. The results show that at a scarf angle of 10°, the repair efficiency and the quality
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Kim, Yun-Hae, Kyo-Moon Lee, Seong-Jae Park, Kyung-In Jo, and Soo-Jeong Park. "Repair and cryogenic mechanical properties with resin film infused (RFI) GFRP in out-of-autoclave processing." Modern Physics Letters B 34, no. 07n09 (2020): 2040014. http://dx.doi.org/10.1142/s021798492040014x.

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Prepreg technology generates air pockets at the interface of laminates under heating and pressurization. The air pockets cause defects in the through-thickness direction. This includes poor adhesion between layers, which degrades material properties. Therefore, in this study, cryogenic mechanical properties were compared to obtain uniform properties by using prepreg laminated and resin film infused glass fiber reinforced plastic (GFRP) composites (“PP-only” and “RF-only”, respectively) while maintaining the constituent contents of the fiber and polymer. Moreover, stepped repair was applied to
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Mercado-Pagán, Ángel E., and Yunzhi Peter Yang. "Bridging the gap: engineering bone for skeletal injuries." Biochemist 40, no. 1 (2018): 12–15. http://dx.doi.org/10.1042/bio04001012.

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For years, mechanical fixators, grafts and cements have provided a surgical solution to bone injuries. However, the inherent restrictions of these treatments have prompted the search for newer options that can fully repair bone and restore its function. But, what are these approaches? What is the future of bone repair? Tissue engineering has stepped up efforts to tackle this difficult topic.
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Collombet, Francis, Yves Davila, Sergio Avila, et al. "Proof of a composite repair concept for aeronautical structures: a simplified method." Mechanics & Industry 20, no. 8 (2019): 812. http://dx.doi.org/10.1051/meca/2020056.

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This paper provides an illustration of all stages of primary aeronautical composite structure repair by using industrial tools and scientific methodologies, as well as numerical tools to simplify the cross-over analysis of the mechanical behaviour of the repaired area. Economically and scientifically speaking, one of the main challenges of composite repair (for monolithic long fiber composite parts) consists of promoting a bonded composite patch option without additional riveted doublers. To address this challenge, size reduction of the patch could be mandatory. A patent (jointly owned by ICA,
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Psarras, Spyridon, Theodoros Loutas, Magdalini Papanaoum, Orestis Konstantinos Triantopoulos, and Vasilis Kostopoulos. "Investigating the Effect of Stepped Scarf Repair Ratio in Repaired CFRP Laminates under Compressive Loading." Journal of Composites Science 4, no. 4 (2020): 153. http://dx.doi.org/10.3390/jcs4040153.

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In this work the effectiveness of stepped repairs to damaged fiber reinforced composite materials is investigated by using previously validated numerical models which were compared with tested repaired composite plates. Parametric studies were carried out in order to assess the scarf ratio (i.e., step length to ply thickness ratio) influence on ultimate forces, displacements, stresses and stiffnesses. FE models with repair scarf ratios varying from the value of 20 to the value 60 with a step increase of 10 were developed. The numerical models allowed a direct comparison of the influence that t
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Ibyldaev, M. H. "PRINCIPLES OF PRESSURE REHABILITATION OF STANDARD SHAFTS." MECHANICS & TECHNOLOGIES, no. 3 (September 30, 2023): 98–104. http://dx.doi.org/10.55956/spca7436.

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The reliability and performance indicators of the known methods currently used in the country's repair industry for the restoration of stepped shafts cannot compete with the indicators of new parts. The most progressive method of restoring step shafts is the method of hot volume stamping. The technical characteristics of pressure-remanufactured parts indicate that their quality is not inferior to serial parts.
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Psarras, Spyridon, Maria-Panagiota Giannoutsou, and Vassilis Kostopoulos. "A Design Optimization Study of Step/Scarf Composite Panel Repairs, Targeting the Maximum Strength and the Minimization of Material Removal." Journal of Composites Science 8, no. 7 (2024): 248. http://dx.doi.org/10.3390/jcs8070248.

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This study aimed to optimize the geometry of composite stepped repair patches, using a parametric algorithm to automate the process due to the complexity of the optimization problem and various factors affecting efficiency. More specifically, the algorithm initially calculates the equivalent strengths of the repaired laminate plate according to a max stress criterion, then calculates the dimensions of several elliptical repair patches, taking into account several design methods extracted from the literature. Next, it creates their finite element models and finally, the code conducts an assessm
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Xu, Jian Xin, Chen Dou, and Ding He Li. "Stress-Based Health Assessment of Composite Open-End Cylindrical Laminated Shell with Stepped-Lap Repairs." Advanced Materials Research 393-395 (November 2011): 297–303. http://dx.doi.org/10.4028/www.scientific.net/amr.393-395.297.

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A three-dimensional finite element model was created in PATRAN to perform stress distribution into the influence of disbonded adhesive in stepped-lap repairs of composite open-end cylindrical laminated shell. Extracted and studied the value of the stress on every ply, and every node, ordered by the X coordinate. A study has been presented that the rim of patch is greatly affected by disbonded types, however, the central area of the patch is less affected relatively, especially between ±20mm, that the diameter is equal to the diameter of the damage, the stresses are flatly changed. And for the
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Tesis sobre el tema "Stepped repair"

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Orsatelli, Jean-Baptiste. "Méthodologie de prédiction de la tenue nominale de réparations composites aéronautiques par collage structural." Electronic Thesis or Diss., Toulouse, ISAE, 2024. http://www.theses.fr/2024ESAE0051.

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Les réparations composites collées apportent plusieurs avantages par rapport aux réparations assembléesmécaniquement à l’aide de boulons ou de rivets. Elles évitent de réaliser des perçages et permettentde réduire la masse additionnelle liée à la réparation. L’emploi de ce type de réparation estaujourd’hui limité aux pièces non structurales, en l’absence (i) de méthode permettant de contrôler laréalisation d’un collage structural et (ii) de méthodologie de dimensionnement standard pour prédirela tenue d’un assemblage collé. Cette thèse propose d’étudier la question du dimensionnement de répara
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Libros sobre el tema "Stepped repair"

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United States. General Accounting Office, ed. Public-private partnerships: Key elements of federal building and facility partnerships : report to the Honorable Stephen Horn, Committee on Government Reform, House of Representatives. The Office, 1999.

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United States. General Accounting Office., ed. Public-private partnerships: Key elements of federal building and facility partnerships : report to the Honorable Stephen Horn, Committee on Government Reform, House of Representatives. The Office, 1999.

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Boerman-Cornell, William, Josha Ho, David Klanderman, and Sarah Klanderman. Using Graphic Novels in the Science, Technology, Engineering, and Mathematics (STEM) Classroom. Bloomsbury Publishing Plc, 2023. http://dx.doi.org/10.5040/9781350279223.

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This book provides everything STEM teachers need to use graphic novels in order to engage students, explain difficult concepts, and enrich learning. Drawing upon the latest educational research and over 60 years of combined teaching experience, the authors describe the multimodal affordances and constraints of each element of the STEM curriculum. Useful for new and seasoned teachers alike, the chapters provide practical guidance for teaching with graphic novels, with a section each for Science, Technology, Engineering, and Mathematics. An appendix provides nearly 100 short reviews of graphic n
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MRes, MACT, MAPCE, MBA, MSc, Danny Moloney. Billions will be REPAID to Millions - TimeOutCreditCards - Stephen Sklaroff: Collateralised Credit Exploitation as practised on AAA None Defaulting ... in Perpetuity. Independently published, 2018.

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Public-private partnerships: Key elements of federal building and facility partnerships : report to the Honorable Stephen Horn, Committee on Government Reform, House of Representatives. The Office, 1999.

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Capítulos de libros sobre el tema "Stepped repair"

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Seshadri, Matta, and M. Ramji. "Numerical and Experimental Analysis of Double-Sided Stepped Lap-Repaired CFRP Laminates Under Tensile Loading." In Advances in Structural Integrity. Springer Singapore, 2017. http://dx.doi.org/10.1007/978-981-10-7197-3_21.

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Lenowitz, Harris. "Introduction The Ritual and the Accounts." In The Jewish Messiahs. Oxford University PressNew York, NY, 1998. http://dx.doi.org/10.1093/oso/9780195114928.003.0001.

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Abstract Wherever Judaism has been, its messiahs have arisen. From the first century BCE to the present, they have stepped forth to rescue, as it were, the religious polities of the Jews. They have contended against Rome in Israel. Exiled, they have risen in arms to ride across the plains and mountains of Islamic Persia, wandered the shores of the Mediterranean all but alone, and yet frightened the pope to death; tailored and cobbled in Inquisition Spain and Portugal; called upon the Jews of Italy to repent; strided through the halls of the Vatican and the courts of the Holy Roman Empire; retu
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Kaloyanides, Michael G. "Peter Stephen Kyvelos (1943–2017)." In Greek Music in America. University Press of Mississippi, 2018. http://dx.doi.org/10.14325/mississippi/9781496819703.003.0036.

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Peter Kyvelos was a Greek American master luthier who opened Unique Strings in Belmont, MA in 1971. Though he repaired many Western chordophones, his greatest artistry was crafting the oud, the short-necked plucked lute found throughout Greece, Turkey, West Asia, and North Africa. Kyvelos was widely accepted as the premier maker of the instrument in the western hemisphere. He had acquired his first oud at 16 and performed professionally in California during the 1960s. In 2001 Kyvelos was awarded a National Heritage Fellowship as an instrument maker.
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Batt, Jennifer. "‘The Duty of a grateful Muse’." In Class, Patronage, and Poetry in Hanoverian England. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780198859666.003.0006.

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This chapter explores how Stephen Duck adapted to life as a poet at the court of George II and Queen Caroline. The patronage that Queen Caroline extended to Duck in 1730 transformed his life and opened up remarkable new opportunities to him. This chapter explores how Duck strove to repay her generosity. Tentatively at first, and then with more confidence, Duck developed into a reliable Hanoverian panegyrist, ready and able to dispense verse on royal birthdays, weddings, and funerals. Duck performed this role with increasing ambition until the Queen’s death in 1737 brought his close association
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Howard-Hill, T. H. "Book Production And Distribution." In British Literary Bibliography, 1970–1979. Oxford University PressOxford, 1992. http://dx.doi.org/10.1093/oso/9780198181835.003.0005.

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Abstract 962 Parks, Stephen. The English book trade, 1660–1853; 156 titles relating to the early history of English publishing, bookselling, the struggle for copyright and the freedom of the press. Repr.... in 38 vols. Ed. with bibliographical notes, by Skphen Parks. [New York], Garland, [1973?]. [20]p. illus. 22cm. 963 National book league, LONDON. One hundred and one books on the book trade; a selective annotated list of British books published in the last twenty years comp. by the staff of the Mark Longman library and Book information service. [2d ed.] London, Mark Longman library, National
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Bondareva, Olga, and Vladimir Vashchenko. "SELECTION OF GRAINS IN CONDITIONS OF UNSTABLE HUMIDIFICATION OF THE NORTH-EASTERN STEPPE OF UKRAINE." In Priority areas for development of scientific research: domestic and foreign experience. Publishing House “Baltija Publishing”, 2021. http://dx.doi.org/10.30525/978-9934-26-049-0-37.

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The purpose of the research is to develop a system of methods for assessing the adaptability of the selection material of spring barley and winter wheat, to create varieties with a high yield potential in conditions of unstable moisture. During 2016-2020, the Donetsk State Agricultural Science Station of the National Academy of Sciences of Ukraine conducted research in the direction of creating high-yielding varieties of soft winter wheat and spring barley, adapted to the conditions of the northeastern region of Ukraine. The research was carried out according to the method of field work by B.
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Actas de conferencias sobre el tema "Stepped repair"

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Geiger, Markus, Anton Glaap, Patrick Schiebel, and David May. "Material Adapted Method for the Repair of Curved Thermoplastic Composite Structures by Induction Welding of Patches." In AeroTech Conference & Exhibition. SAE International, 2025. https://doi.org/10.4271/2025-01-0165.

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<div class="section abstract"><div class="htmlview paragraph">Thermoplastic fiber-reinforced polymer composites (TPC) are gaining relevance in aviation due to their high specific strength, stiffness, potential recyclability and the ability to be repaired thanks to their meltability. To maximize their potential, efficient repair methods are needed to maintain aircraft safety and structural integrity. This article introduces a novel repair technique for damaged TPC structures, involving the joining of a repair patch with induction welding using a susceptor material. The susceptor con
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Stevens, Melinda, Samuel Arellano, Diego Rodriguez, et al. "Robotic-Based Repair of Concrete Structures: A Surface Crack Filler Robot." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-72082.

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Abstract Surface cracks in concrete structures are often indicators of more substantial damage and may negatively affect the durability of a structure. To ensure the soundness of these structures, surface cracks should be quickly detected; this project proposes a robot with the ability to detect, map, and fill surface cracks. The robot will use a Bayesian network to fuse the multi-sensor data provided via an RGB camera, a stereo infrared depth sensor, and a LIDAR sensor. It will also be fitted with a newly designed piston-driven syringe system to inject a concrete filler material in a controll
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Rigau, Armando. "Architectural Custodians:Retroactive Urban Photography from Berlin, Seville & Santurce." In 113th Annual Meeting Paper Proceedings. ACSA Press, 2025. https://doi.org/10.35483/acsa.am.113.67.

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Over recent decades, the global surge in civic activism compels a closer look at architecture’s complicity in perpetuating or challenging the status quo. A reflection on the state of the built environment through the posthumanist thought of Stephen J. Jackson and Peter Sloterdijk fuels a design pedagogy centered on renewal, urging the adoption of alternative methods to engage with today’s decaying urban fabrics. How can we teach students to embrace repair as a foundational principle? Which design tools best enable students to distill the complex relationships between buildings and their contex
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Shargay, Cathleen, Anil Singh, Tim Munsterman, and Les Antalffy. "Coke Drum Design and Fabrication Issues." In ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/pvp2010-25765.

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There are numerous design, materials and fabrication issues which significantly affect the cost, reliability and life of coke drums. Primarily in a pros and cons narrative, this paper discusses many of these critical decisions. It first outlines the potential damage mechanisms resulting from coke drum operation, which are primarily thermal fatigue and bulging and also embrittlement, sulfidation and erosion. Delayed Coking operation is described along with the ever present desire by owners to shorten cycle times to maximize unit throughput. Some examples of the decisions include the choices of
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Uddin Ahmed, Radif, Iftesam Nabi, Chowdhury Sadid Alam, Yun Chen, and M. Shafiqur Rahman. "A Framework for Surface Scanning to Additive Repairing Using Point Cloud Data and Surface Reconstruction Algorithms." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-146010.

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Abstract This study represents an additive repairing method for solid bodies by accurately scanning and reconstructing three-dimensional (3D) surfaces inspired by the additive manufacturing (AM) technique. The proposed methodology utilizes a laser profiler (Keyence LJX 8200) to scan an arbitrary surface and obtain point cloud data (PCD). The laser profiler functions as a line scan device that can provide 3200 data points for a single two-dimensional XZ plane. To extend the scanning capabilities beyond a single line, a computer-controlled gantry system driven by a stepper motor is integrated to
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Wiklund, Theodore, Mark Heim, Jaret Halberstadt, et al. "Design and Development of a Cost-Effective LIDAR System for Transportation." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11279.

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Abstract Light Imaging Detection and Ranging (LIDAR) cameras and Light Detecting and Ranging (LiDAR) rangefinders were initially implemented in the 1960s as a higher-resolution and increased capability alternative to radar. Since then, LIDAR and LiDAR (hereto called lidar) have expanded into applications in aerial geographical surveying and collision-detection systems for autonomous vehicles. Current commercial systems are relatively expensive and potentially oversized for noncommercial applications. Consequently, this deters their use on consumer products like bicycles, where lidar systems ca
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Slapac, Mariana. "Some details referring to the construction works in the stone fortress of Kilia." In Simpozion Național de Studii Culturale, dedicat Zilelor Europene ale Patrimoniului. Ediția III. Institute of Cultural Heritage, Republic of Moldova, 2022. http://dx.doi.org/10.52603/sc21.14.

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In the period June 22 – July 16, 1479, Stephen the Great built or rebuilt the stone fortress of Kilia. The Levantine or Greek-Genoese architect Ioan Privana, who built the Moldavian church of St. Nicholas here, could be involved in the construction works. After 1484 the stone fortress of Kilia was repaired and modernized by the Ottomans. At that time, each major province of the Ottoman Empire had its own chief architect of the Royal Corps of Architects, who dealt with military projects. It was a time when Ottoman specialists created engineering works that even met the standards of the followin
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Bennett, Jarod, Mather Saladin, Daniel Sizoo, et al. "Design of an Efficient, Low-Cost, Stationary LiDAR System for Roadway Condition Monitoring." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-69308.

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Abstract Light Imaging Detection and Ranging (LiDAR) systems generate point cloud imagery by using laser light to measure distance to a surface and then combine numerous points to create a three-dimensional (3-D) image. Since early adaptations, LiDAR is now common in aerial and subterranean geographical surveying and autonomous vehicle operations. The transportation industry uses LiDAR to monitor roadway quality, which can allow hazardous roadway corrosion to be spotted and repaired before endangering drivers. However, a leading issue with LiDAR availability is the respectively high price poin
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Schneider, Jerry, Jeffrey Wagner, and Judy Connell. "Restoring Public Trust While Tearing Down Site in Rural Ohio." In The 11th International Conference on Environmental Remediation and Radioactive Waste Management. ASMEDC, 2007. http://dx.doi.org/10.1115/icem2007-7319.

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In the mid-1980s, the impact of three decades of uranium processing near rural Fernald, Ohio, 18 miles northwest of Cincinnati, became the centre of national public controversy. When a series of incidents at the uranium foundry brought to light the years of contamination to the environment and surrounding farmland communities, local citizens’ groups united and demanded a role in determining the plans for cleaning up the site. One citizens’ group, Fernald Residents for Environmental Safety and Health (FRESH), formed in 1984 following reports that nearly 300 pounds of enriched uranium oxide had
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