Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 67 for “"PBF"”.
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Projeto Travessia Salvador: uma proposta complementar ao Programa Bolsa Família (PBF)
… para complementar o Programa Bolsa Família (PBF), através da transferência de renda, da ampliação de políticas públicas e de ações de inclusão produtiva. A transferência de renda se dará para as famílias inscritas no CadÚnico que estejam em situação de extrema pobreza, isto é, com renda …
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Laser Powder Bed Fusion (L-PBF) of high-strength Aluminum alloys
L'abstract è presente nell'allegato / the abstract is in the attachment
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Development and characterisation of Al-based alloys processed by PBF-LB/M
L'abstract è presente nell'allegato / the abstract is in the attachment
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Towards sustainable manufacturing in the PBF-LB industrial process: assessment of opportunities and challenges
L'abstract è presente nell'allegato / the abstract is in the attachment
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A new pathway in the induction of breast cancer
… tumor transforming gene Binding Factor (PBF) is a relatively uncharacterized gene implicated in endocrine neoplasia. Given the presence of putative oestrogen response elements (ERE) in its promoter, we assessed PBF regulation by oestrogen. PBF mRNA and protein expression were induced by …
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Modelling of the powder sintering process and relative thermal conductivity variation during the electron beam powder bed fusion (PBF-EB)
L'abstract è presente nell'allegato / the abstract is in the attachment
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Effect of Process Gas Composition on the Characteristics of Atomized UNS S32760 Super Duplex Stainless Steel Powders and Their Properties After PBF-LB/M Processing. From Waste-Derived Powder Production to PBF-LB/M Components: Gas Atomization Optimization, Post-Processing Heat Treatment, Mechanical Characterization, and Corrosion Assessment.
L'abstract è presente nell'allegato / the abstract is in the attachment
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The applicability of performance-based funding mechanisms in Malaysian Public Universities
A performance-based funding (PBF) mechanism is now widespread in educational institutions in both developed and developing countries. The Malaysian Government also has intention to implement PBF in public universities, yet no study has explored the applicability of PBF implementation in Malaysian …
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Property-Process-Property Relationships in Powder Bed Fusion Additive Manufacturing of Poly(phenylene sulfide): A Case Study Toward Predicting Printability from Polymer Properties
Powder bed fusion (PBF) is one of seven technology modalities categorized under the term additive manufacturing (AM). Beyond the advantages of fabricating complex geometries and the "tool-less manufacturing" paradigm common to all types of AM, polymer PBF shows potential for significant industrial …
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Relationship of dietary factors and physical activity to body fat in 3–5 year old children
… environmental factors and percent body fat (PBF), and (2) determine if air-displacement plethysmography (ADP) and dual-energy x-ray absorptiometry (DXA) were accurate methods for assessing body fat in children 3 to 5 years old as compared to deuterium dilution (2H). Data including PBF, diet …
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The feasability of processing silver and copper using 400w laser powder bed fusion additive manufacturing
… For metal AM the Laser Powder Bed Fusion (L-PBF) process is the most mature technology and is commonly utilised in aerospace, automotive and healthcare sectors. However, L-PBF processing highly reflective and thermally conductive Cu and Ag is challenging due to their reflective nature …
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The effects of Performance-Based Financing on the uptake of health services in low-and-middle-income countries: A systematic review
… have adopted Performance-Based Financing (PBF) since the late nineties to improve health system effectiveness and efficiency. Two previous systematic literature reviews assessed the effect of PBF on the uptake of specific health services such as HIV/AIDs and modern family planning. Another …
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High temperature fracture behaviour of laser-powder bed fusion produced nickel superalloy
… techniques, such as laser-powder bed fusion (L-PBF), have emerged as promising alternatives for producing such parts. L-PBF has can create near fully dense components, making them viable for service. The process however produces a unique microstructure not present in wrought counterparts and the …
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Mechanisches Verhalten von additiv gefertigtem nichtrostendem Stahl X2CrNiMo17-12-2 (AISI 316L) und Vergleich zur konventionell gefertigten Variante
… hergestellte Werkstoffvariante, PBF-LB/M/316L. Eine konventionell hergestellte Variante, HR/316L, wurde auch untersucht. Bei PBF-LB/M/316L wurde zusätzlich der Effekt ausgewählter Wärmebehandlungen ausgewertet. Die Untersuchung umfasste die Charakterisierung der mechanischen …
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Corrosion behavior and mechanism of metallic biomaterials produced by laser powder bed fusion
… tissues. Recently, laser powder bed fusion (L-PBF) in additive manufacturing techniques (e.g., selective laser melting) has attracted extensive attention in manufacturing complex and near net-shaped parts with almost no geometric constraints on the final product. It also has the advantage of …
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DEVELOPMENT OF SYNTHETIC POLYMERS FOR BONE TISSUE ENGINEERING: ENGINEERING THE DEGRADATION RATE
… synthetic polymers, poly (butylene fumarate) (PBF) and the copolymer poly (butylene fumarate)-co-(butylene maleate) (PBFcBM) is described. The unsaturated linear polyesters were synthesized via two synthetic routes, including an acid catalyzed transesterification reaction of …
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Additive manufacturing of polyolefins via powder bed fusion
Powder bed fusion (PBF) is an additive manufacturing (AM) process in which a fine polymer powder is selectively heated and melted using infra-red (IR) energy from a CO2 laser to melt the powder and coalesce the molten polymer together to form each layer. Semi-crystalline polymers are the most …
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Melt Pool Feature Extraction, A State-Space Model and Spatial Layer-to-Layer Control for Powder Bed Fusion
<p>"Powder Bed Fusion (PBF) is an Additive Manufacturing (AM) technique which can reduce material waste and is a fast-prototyping technique for complex geometries. However, the lack of consistent quality is a major problem in industrial applications. An InfraRed (IR) camera is a common tool to …
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On the development of new PolyArylEtherKetone bulk solids for Powder Bed Fusion
Powder Bed Fusion (PBF) of polymers, a form of Additive Manufacturing (AM) is an established manufacturing process where fine powdered materials are consolidated by an energy source to form polymeric parts without the need for moulds or tooling. A requirement of the process is a fine powder …
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Performance-based funding: Perspectives of community college leaders’ in Texas on its influence on student success initiatives
… each of the performance-based funding (PBF) milestones. The U.S. Government Accountability Office reported that state funding for community colleges had declined by 12% across the United States. In addition to reduced funding, community colleges were having to deal with the new PBF …
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