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Littérature scientifique sur le sujet « KF. Planning, Design, Removal »

Auteur : Grafiati

Publié le 10 mars 2023

Mis à jour le 31 juillet 2025

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Articles de revues sur le sujet "KF. Planning, Design, Removal"

Saeed, Anwar Ameen Hezam, Noorfidza Yub Harun, Suriati Sufian, et al. "Modeling and Optimization of Biochar Based Adsorbent Derived from Kenaf Using Response Surface Methodology on Adsorption of Cd2+." Water 13, no. 7 (2021): 999. http://dx.doi.org/10.3390/w13070999.

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Cadmium is one of the most hazardous metals in the environment, even when present at very low concentrations. This study reports the systematic development of Kenaf fiber biochar as an adsorbent for the removal of cadmium (Cd) (II) ions from water. The adsorbent development was aided by an optimization tool. Activated biochar was prepared using the physicochemical activation method, consisting of pre-impregnation with NaOH and nitrogen (N2) pyrolysis. The influence of the preparation parameters—namely, chemical impregnation (NaOH: KF), pyrolysis temperature, and pyrolysis time on biochar yield

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Torzoni, Saverio, Carlo Pisano, and Fabrizio Battisti. "Form and Structure of the Knowledge Framework for Urban Planning: Methodological Approach and Assessment Issues: The Case Study of the Municipality of Fondi Urban Plan." Land 12, no. 6 (2023): 1201. http://dx.doi.org/10.3390/land12061201.

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Analysing the formation of the Knowledge Framework (KF) for the Municipality of Fondi, a medium size municipality in central Italy, this research explains the methodology used to describe and interpret its specific territorial condition, aiming to delineate a series of operative guidelines for further implementations in other contexts. The article deals with comparisons with several urban planning approaches, transposing them to the study area, through the filter provided by the approach of Regional Design. The objective of the research is to produce a comprehensive KF for urban planning conta

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Murali, G., M. Murugan, K. Arunkumar, P. V. Elumalai, D. Mohanraj, and S. Prabhakar. "Investigation and Process Parameter Optimization on Wire Electric Discharge Machining of Aluminium 6082 Alloy." Advances in Materials Science and Engineering 2022 (September 24, 2022): 1–16. http://dx.doi.org/10.1155/2022/5119056.

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Wire electrical discharge machining (WEDM) is an unconventional machining process that is being extensively used in the aerospace,medical devices, die, tooling, and automotive industries for machining high-hardness materials with conductivity. In the present work, WEDM of aluminium 6082 alloys was carried out since it influences diversified applications in manufacturing industries. The WEDM process includes an extensive number of variables that influence its execution. However, based on the literature survey, three process parameters such as pulse-on time (PTON), pulse-off time (PTOFF), and wi

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Yang, Yuqin, Jan van Aalst, and Carol Chan. "Examining Online Discourse Using the Knowledge Connection Analyzer Framework and Collaborative Tools in Knowledge Building." Sustainability 13, no. 14 (2021): 8045. http://dx.doi.org/10.3390/su13148045.

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This study examines the problem of the fragmentation of asynchronous online discourse by using the Knowledge Connection Analyzer (KCA) framework and tools and explores how students could use the KCA data in classroom reflections to deepen their knowledge building (KB) inquiry. We applied the KCA to nine Knowledge Forum® (KF) databases to examine the framework, identify issues with online discourse that may inform further development, and provide data on how the tools work. Our comparisons of the KCA data showed that the databases with more sophisticated teacher–researcher co-design had higher

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Abuabara, Andrés, Carlos Diaz-Uribe, William Vallejo, Freider Duran, and Edgar Mosquera-Vargas. "Kinetic and Thermodynamic Study of Cationic Dye Removal Using Activated Biochar Synthesized from Prosopis juliflora Waste." ChemEngineering 9, no. 3 (2025): 64. https://doi.org/10.3390/chemengineering9030064.

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In this study, we synthesized an activated biochar using Prosopis juliflora waste as a carbon source. Citric acid (CA) was used as the chemical agent for biochar activation. The removal of methylene blue (MB) using the fabricated biochar was investigated. A response surface methodology (RSM) experimental design was employed to evaluate the effects of synthesis parameters, including the temperature and the CA/biochar mass ratio, on the biochar’s MB removal efficiency. The impact of adsorption parameters, such as the biochar dosage, pH, MB concentration, and ionic strength, was also examined. Ki

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Husna, Asmaul, Md Rashedul Kabir Mondol, Md Rabiul Hasan, and Md Yeamin Hossain. "Estimation of population structure, growth and condition of Parastromateus niger in the Bay of Bengal." Acta Biologica Szegediensis 66, no. 1 (2022): 1–6. http://dx.doi.org/10.14232/abs.2022.1.1-6.

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Black pomfret (Parastromateus niger) is one of the major commercial species of pomfret fishery in Bangladesh. This study illustrates the population structure (Length Frequency Distribution, LFD), relationship between length and weight (LWR), relationships between length and length (LLRs), Fulton’s condition factor (KF) and relative weight (WR) of P. niger in the Bay of Bengal (BoB). A total of 225 P. niger were collected from the four locations during January to December 2020. LFD analysis indicates three length classes 21-27 cm, 30-32 cm and 35-37 cm, respectively. This species showed isometr

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Wu, Yingbao, Biaoyi Wang, Ziyi Ou, et al. "Research on Enhancing Domestic Wastewater Treatment in the Heterotrophic Nitrification–Aerobic Denitrification-Based Anaerobic/Oxic Biofilm System." Water 17, no. 2 (2025): 162. https://doi.org/10.3390/w17020162.

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Traditional wastewater treatment processes still encounter challenges such as the limited treatment efficiency and excessive greenhouse gas emissions, which restrict their application in environmentally sustainable practices. This study developed an A/O biofilm system and assessed the impact of inoculating the system with the heterotrophic nitrification–aerobic denitrification (HN–AD) strain Alcaligenes faecalis WT14 on pollutant removal efficiency and greenhouse gas emissions. A continuous monitoring experiment was conducted over 140 days, comparing the system inoculated with WT14 (the TWT14

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Lalwani, Vishal, Priyaranjan Sharma, Catalin Iulian Pruncu, and Deepak Rajendra Unune. "Response Surface Methodology and Artificial Neural Network-Based Models for Predicting Performance of Wire Electrical Discharge Machining of Inconel 718 Alloy." Journal of Manufacturing and Materials Processing 4, no. 2 (2020): 44. http://dx.doi.org/10.3390/jmmp4020044.

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This paper deals with the development and comparison of prediction models established using response surface methodology (RSM) and artificial neural network (ANN) for a wire electrical discharge machining (WEDM) process. The WEDM experiments were designed using central composite design (CCD) for machining of Inconel 718 superalloy. During experimentation, the pulse-on-time (TON), pulse-off-time (TOFF), servo-voltage (SV), peak current (IP), and wire tension (WT) were chosen as control factors, whereas, the kerf width (Kf), surface roughness (Ra), and materials removal rate (MRR) were selected

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Antonieti, Caio César, and Yovanka Pérez Ginoris. "Removal of Cylindrospermopsin by Adsorption on Granular Activated Carbon, Selection of Carbons and Estimated Fixed-Bed Breakthrough." Water 14, no. 10 (2022): 1630. http://dx.doi.org/10.3390/w14101630.

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Climate change and the increase in the availability of nutrients in aquatic environments have increased the occurrence of cyanobacterial blooms which can produce cyanotoxins such as cylindrospermopsin (CYN). Activated carbon adsorption have been proved to be efficient for CYN removal. In the present study, a carbon with high CYN adsorption capacity was identified between two granular activated carbons. For this carbon was estimated the operating time of a full-scale granular activated carbon column under different empty bed contact times (EBCT). The fixed-bed breakthrough was estimated using t

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Urgun-Demirtas, M., K. R. Pagilla, T. E. Kunetz, J. P. Sobanski, and K. P. Law. "Nutrient removal process selection for planning and design of large wastewater treatment plant upgrade needs." Water Science and Technology 57, no. 9 (2008): 1345–48. http://dx.doi.org/10.2166/wst.2008.223.

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A protocol to select nutrient removal technologies that can achieve low nutrient effluents (total nitrogen (TN) &lt; 5 mg/L and total phosphorus (TP) &lt; 0.5 mg/L) was developed for different wastewater treatment plant (WWTP) sizes based on the research conducted during a Water Environment Research Foundation funded project. The adaptable protocol includes technology and cost assessment of feasible (pre-screened) nutrient removal technologies that are being successfully implemented at full scale. The information collected from the full scale nutrient removal plants to develop this pro

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Thèses sur le sujet "KF. Planning, Design, Removal"

Zewde, Sara. "Theory, place, and opportunity : black urbanism as a design strategy for the potential removal of the Claiborne Expressway in New Orleans." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59769.

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Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 2010.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (p. 116-123).<br>As WEB DuBois notes in his seminal work, The Souls of Black Folk, "it is a peculiar sensation, this sense of always looking at one's self through the eyes of others, of measuring one's soul by the tape of the world that looks on in amused contempt and pity [...]." The Black person wishes to merge the double-consciousness, but "would not Africanize America, for America has too much to teach the world a

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Schmidt, Annette Karin. "Leit- und Orientierungssysteme in Bibliotheksneubauten." Thesis, 2011. http://eprints.rclis.org/17356/1/Annette%20Schmidt%20Bachelorarbeit-Endfassung1.pdf.

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This bachelor thesis describes the basic components of a guidance and orientation system which is discussed under special consideration of signage. The study clarify whether an applied signage within the design of the guidance and orientation system will improve the orientation in a library and beyond that if it will have impacts on the well-being of the user and furthermore on the image nof the library. The developed properties of a guidance and orientation system with a good information design are shown at two examples of public libraries: The Mediothek Krefeld and the cental public library

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Ferreira, Ana Cabete, Ana Lontro Correia, Dulce Rocha Vieira, Graça Diogo Marques, and Sérgio Mangas. "O agora das bibliotecas ou a biblioteca ágora : bibliotecas públicas, coworking e inovação." Thesis, 2013. http://eprints.rclis.org/20485/1/Biblioteca-agora.pdf.

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In a context of evolving technological and social changes, leading to today's information and knowledge society, we aim to understand the new concept of public library, and what services and spaces are emerging all over the world in public libraries in order to attract new users and meet the needs of people. As background, we associate the role of public libraries with the policies for smart, sustainable and inclusive growth strategies under Europe Strategy 2020. We present a new concept of public library that responds to the new challenges of today linking them with the educational, cultural,

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Echavarría-Ramírez, Andrés-Felipe, and Jacobo Nader-Ceballos. "Uso del área de proceso Service Delivery (SD) de CMMI for services, versión 1.3 como guía para servicios en bibliotecas universitarias en el Valle del Cauca." Thesis, 2012. http://eprints.rclis.org/22722/1/procesos_servicios_delivery.pdf.

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The university in the Valle del Cauca and the rest of the world , libraries have a changing dynamic , with various proposals to modify the requirements of academic, technological and business world. These demands are guided by compliance with quality models seeking an adjustment to the environment and require a fixed results , in the case of ISO 9000, EFQM model FUNDIBEC , among others. Another way to respond to the new challenges of the university environment , has introduced new paradigms in the management of library services and resources based on technology models , the case of Integrated

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Sallau, Mohammed. "Human and Institutional Factors as Challenges to Use of Mobile Technologies for Team-Based Learning: Case Study of Three Tertiary Institutions in Ede, Osun state." Thesis, 2020. http://eprints.rclis.org/42254/1/Mohammed%27s%20BLIS%20Final%20Project.pdf.

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The study was motivated by the need to find out the factors that determined team based learning in tertiary institutions in Ede, Osun State, Nigeria. The researcher observed that the rate in which students in tertiary institutions get involved in team based learning is considerably high. It was also observed that very little has been done to assess the factors that determine the use of mobile technologies and academic and research libraries for team based learning by undergraduate students. The case study research method was adopted to carry out the study in three tertiary institutions in Ede,

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Dehais, Mary. "Bioretention: Evaluating their Effectiveness for Improving Water Quality in New England Urban Environments." 2011. https://scholarworks.umass.edu/theses/595.

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Nonpoint source (NPS) pollution is one of the leading causes of water quality problems in the United States. Bioretention has become one of the more frequently used stormwater management practices for addressing NPS pollution in urbanized watersheds in New England. Yet despite increased acceptance, bioretention is not widely practiced. This study explores and evaluates the efficacy of bioretention for protecting urban water quality. This research found that numerous monitoring methods are used by researchers and industry experts to assess the effectiveness of stormwater best management practic

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Livres sur le sujet "KF. Planning, Design, Removal"

Office, General Accounting. Nuclear waste: Greater use of removal actions could cut time and cost for cleanups : report to the Chairman, Subcommittee on Military Procurement, Committee on National Security, House of Representatives. U.S. General Accounting Office, 1996.

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Nuclear waste: Greater use of removal actions could cut time and cost for cleanups : report to the Chairman, Subcommittee on Military Procurement, Committee on National Security, House of Representatives. The Office, 1996.

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Chapitres de livres sur le sujet "KF. Planning, Design, Removal"

Böß, Volker, Berend Denkena, Sven Friebe, and Markus Hein. "Simulation-Based Process Design of Recontouring Technologies." In Regeneration of Complex Capital Goods. Springer International Publishing, 2024. http://dx.doi.org/10.1007/978-3-031-51395-4_13.

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AbstractEngine manufacturers generate about 50% of their total turnover with maintenance. Damaged parts can either be replaced by spare parts or can be regenerated by e.g. local welding processes. One major step of the manufacturing part of the process chain for regeneration after the material deposition is the removal of excess weld material by cutting, which is called recontouring. Recontouring is often the last process step, which defines the final surface integrity and thus the performance of the repaired parts. Thereby, each component has a batch size of one by reason of individuality. In

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Li, Ning, and Yang Liu. "Sustainable Design in Urban Green Space." In Sustainability in Urban Planning and Design. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.90026.

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As a fundamental part of the urban function, urban green space faced a long-term maintenance requirement. The maintenance of urban green space (i.e., trimming, irrigation, fertilization, pesticide, and plant waste removal) can have environmental impacts, such as energy consumption and greenhouse gas (GHG) emission. This chapter focuses on the adjustment of the plant communities’ combinations in urban green space to reduce the environmental impacts in long-term maintenance. The plant communities in urban green spaces are a combination of four plant layers: woodland, shrubs, herbicides, and gras

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Drabier, Renee, and Daniel E. Burgard. "From Stacks to Collaborative Learning Commons." In Cases on Educational Technology Planning, Design, and Implementation. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-4237-9.ch008.

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The University of North Texas Health Science Center (UNTHSC) completed a project to transform traditional, print-centric library space into an open, technology-enabled learning commons. The library’s print collection was dramatically reduced to create a new Collaborative Learning Commons in areas formerly occupied by bookshelves. Removal of books, journals, and shelving was carefully planned based on the needs of students, researchers, and clinicians. Following the print collection reduction, the new physical commons development included changing walls, replacing flooring, adding electrical an

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Deb, Suparna, Bhavesh Choudhary, Shubham Kashyap, and Utkarsh Choudhary. "Constructed wetland for wastewater treatment: design, operation, and performance." In Nature-Based Technologies for Wastewater Treatment and Bioenergy Production. IWA Publishing, 2025. https://doi.org/10.2166/9781789064100_0063.

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Abstract Constructed wetlands have emerged as a sustainable and efficient approach for treating wastewater, offering numerous environmental and economic benefits. This chapter examines the design, operation, and performance of contracted wetlands as a viable solution for wastewater treatment especially in fishery sector. The design aspect highlights the critical factors considered during the planning phase of constructed wetlands. It discusses the selection approaches of appropriate wetland types, such as free water surface (FWS) and subsurface flow (SSF), based on specific pollutant removal r

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Mawonde, Dumisani. "Transportation Solutions for People With Disabilities." In Contemporary Solutions for Sustainable Transportation Practices. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-3755-4.ch008.

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This chapter studies the transportation challenges faced by people with disabilities and suggests solutions to the identified challenges. A systematic literature review was adopted and used where a total of 10 research papers were selected for examination. The findings of this research indicate that people with disabilities are faced with transportation challenges such as lack of transport facilities, discrimination and unfair treatment, inept vehicle design, high transport fares, and they are excluded from the process of transport planning when compared to those in developed countries. In vie

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Jiyane, P., K. B. Hoorzook, and N. Janse van Rensburg. "The state of wastewater treatment plants and how it is affecting the effluent discharge quality within the water bodies of Gauteng." In Nature-Based Technologies for Wastewater Treatment and Bioenergy Production. IWA Publishing, 2025. https://doi.org/10.2166/9781789064100_0139.

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Abstract A crucial component of both environmental sustainability and human welfare is water quality. The demand for freshwater resources has significantly increased due to growing urbanization and industrialization, which has resulted in the production of enormous amounts of wastewater. Wastewater is the water-carried waste that is removed from formal and informal residences, institutions, commercial, and industrial establishments, together with the groundwater, surface water, stormwater, and potable water as may be present. The primary objective of collection and wastewater treatment is to e

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Actes de conférences sur le sujet "KF. Planning, Design, Removal"

Leyland, David S. "Overcoming Obstacles to Repaint a Unique Structure – from Initial Planning through Project Completion." In SSPC 2008. SSPC, 2008. https://doi.org/10.5006/s2008-00035.

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Abstract The paper chronicles and discusses the challenges, options, choices and solutions from the design phase through the actual blast cleaning and painting of one of the most unique steel structures in the world, the largest radio telescope at Arecibo, Puerto Rico. Challenges included: almost daily thunder storms, a truss structure consists of 900 tons of steel elevated on cables approximately 450 feet above an 18 acre aluminum dish, penalties for dropping anything, access from only a single suspended 700 ft walkway, limitations on weight distribution and weight loads, removal of lead and

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Ertelt, Christoph, and Kristina Shea. "An Application of Shape Grammars to Planning for CNC Machining." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86827.

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Planning for Computerized Numerical Control (CNC) fabrication requires generation of process plans for the fabrication of parts that can be executed on CNC enabled machine tools. To create such plans, a large amount of domain specific knowledge is required to map the desired geometry of a part to a manufacturing process, thus decomposing design information into a set of feasible machining operations. Approaches to automate this planning process still rely heavily on human capabilities, such as planning and reasoning about geometry in relation to machining capabilities. In this paper, the autho

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Hatanaka, Motohide, and Mark R. Cutkosky. "Process Planning for Embedding Flexible Materials in Multi-Material Prototypes." In ASME 2003 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/detc2003/dfm-48166.

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We describe a set of techniques to permit the fabrication of multi-material layered prototypes with embedded flexible components such as reinforcing fibers, fabrics and electrical wiring. The main challenges are to maintain the shapes of the flexible elements during processing and to control precisely the geometries of adjacent regions of part material without either damaging the flexible elements or being hindered by them. The solutions involve sequences of controlled deposition and/or removal of part material and sacrificial “buffer” material. Functional considerations concerning strength an

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Ruan, Jianzhong, Kunnayut Eiamsa-ard, Jun Zhang, and F. W. Liou. "Automatic Process Planning of a Multi-Axis Hybrid Manufacturing System." In ASME 2002 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/detc2002/dac-34138.

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With the integration of multi-axis layered manufacturing and material removal (machining) processes, a hybrid system has more capability and flexibility to build complicated geometry with a single setup. Process planning to integrate the two different processes is a key issue. In this paper, an algorithm of adaptive slicing for five-axis Laser Aided Manufacturing Process (LAMP) is summarized which can generate uniform- or non-uniform slices. In order to avoid interruption in the deposition process for one slice, a skeleton-based offset deposition tool-path method is used to generate continuous

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Lim, Theodore, James Ritchie, and Craig Fletcher. "From Gameplay Experience to Haptic-Aided Process Planning." 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/detc2015-46500.

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Process planning incorporating material removal is a critical phase in the realization of a product between design and manufacture where all the decisions are made and documented with regard to how the product is going to be manufactured. Any decisions at this point can have a major impact on final cost and quality. While computer-aided process planning (CAPP) systems are widely available, evidence suggests that they are unable to meet users’ expectations sufficiently as indicated by their low commercial uptake. This research investigated the reasons why and defined a systematic approach for t

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Yi, Xianzhong. "Tool Path Planning Algorithm of Normal Curvature Approach Milling Model for Freeform Surfaces." In ASME 2001 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/detc2001/cie-21297.

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Abstract The normal curvature approach model is a new milling method of machining complex freeform surfaces presented in this paper based on 5-axis CNC machines. For this milling model, its key is to optimize the CL-data of whirlwind milling tool so that the symmetric rotational surface, which is generated while the whirlwind milling tool rotates, can closely approach to the surface being machined. Then, this method evidently raises the material removal rate at the point of contact and efficiently improves the machining productivity. In the paper, a new-typed whirlwind milling tool with standa

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Kim, Yong Se, and Eric Wang. "Machining Feature Recognition for Cast Then Machined Parts." In ASME 1999 Design Engineering Technical Conferences. American Society of Mechanical Engineers, 1999. http://dx.doi.org/10.1115/detc99/cie-9117.

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Abstract We present a method to recognize machining features for the domain of cast-then-machined parts. Non-interacting volumetric machining features are recognized through a face pattern based recognition approach, and are filtered out of the part model. From the filtered part model and the specification of part surfaces as being cast or machined, we systematically generate the surface machining features and the starting workpiece, which represents the casting output in sufficient detail to support machining process planning. By subtracting the filtered part from its starting workpiece, we o

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Ertelt, Christoph, and Kristina Shea. "Generative Design and CNC Fabrication Using Shape Grammars." In ASME 2008 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/detc2008-49856.

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Generative design and fabrication refers to the ability to autonomously generate designs while simultaneously generating all information to directly fabricate them. This technique is driven by the increasing need to rapidly and flexibly fabricate customized parts and individually designed products. For the automation of the design-to-fabrication process chain, intensive and dynamically updated knowledge from the domains of design and fabrication must be provided. To allow for a flexible, autonomous fabrication, the knowledge modeled must dynamically reflect the state of the fabrication system

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D’Souza, Roshan M., and Zaryab Ahmad. "Applications of Genetic Algorithms in Process-Planning: Tool Sequence Selection for 2.5D Pocket Machining." In ASME 2006 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2006. http://dx.doi.org/10.1115/detc2006-99368.

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Rapid tool change mechanisms in modern CNC machines have enabled the use of multiple tools (sequence of tools) to machine a given pocket. Larger diameter tools that have higher material removal rates are used to clear large open spaces, smaller tools are used for clean up. The challenge lies in selecting that particular combination of tools that minimizes total cost. Previously, we developed algorithms based on network optimization to find the best tool sequence given a list of cutters, cutting parameters and pocket geometry. The formulation was based on certain assumptions that did not accoun

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Doran, Michael P., Matteo M. Smullin, and Karl R. Haapala. "An Approach to Compare Sustainability Performance of Additive and Subtractive Manufacturing During Process Planning." In ASME 2016 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/detc2016-60209.

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Additive manufacturing is a family of processes that has been gaining attention recently by industry, researchers, and policy makers. Many claims have been made about improved sustainability performance over traditional subtractive machining processes. However, these claims have not been substantiated through sustainability characterization. This paper presents a method to compare several sustainability metrics for parts of varying size produced by additive and subtractive manufacturing processes. The production of a part is modeled using direct energy deposition (DED) as the representative ad

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