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 127 for “"Circularity"”.
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Circularity of graphs
Let G be a finite connected graph. The circularity of G has been previously defined as σ(G) = max{r ε N| G has a circular covering of r elements, each element being a closed, connected subset of G containing at least one vertex of G}. This definition is known to be equivalent to the combinatorial …
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Pipe circularity reformation via line heating
Fabrication of pipes requires the use of several manufacturing processes, such as bending, welding, drilling and wringing. However, in most cases the circular ends deviate from true circles and need reformation to be welded to angles. Currently the reformation is conducted by hammering and relies …
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Pipe circularity reformation via line heating
Thesis (S.M. in Naval Architecture and Marine Engineering)--Massachusetts Institute of Technology, Dept. of Ocean Engineering; and, (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2002.
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Unwanted Project: Speculative Design for Circularity
… as investigates what can be done to realize the circularity at the in-home level from a creative and repurposing perspective. This thesis firstly investigated material repurpose and reusing from multiple levels, from official recycling action to grassroots global plastic recycling community, and …
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Constituting Life Cycles: Circularity as Architectural Design Premise
… ability to adapt to change and achieve strategic circularity. The research discusses the design requirements needed in order to achieve this level of change and impermanence. These principles consider the constituting elements of a building and its lifespan, furthermore, post lifespan adaptation …
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Experimental and Computational Electrochemistry to Move Toward Plastics Circularity
… of existing plastics. Increasing plastic circularity will be crucial in decarbonizing the 400 Mt of plastic generated annually and the associated climate and environmental effects that result from producing plastics on this scale. While the key chemical reaction involved in the synthesis …
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A characterization of the circularity of certain balanced incomplete block designs.
… develop a necessary and sufficient condition for circularity, present computational techniques for determining circularity and give varying constructions. We devote a chapter to the use of circular designs in coding theory. It is proven that these structures are not useful in the theory of …
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Designing an optimal module-based product family and commonality for circularity
Author requested U of Illinois access only (OA after 2yrs) in Vireo ETD system
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Dowel-laminated timber from waste lumber offcuts: Towards structural component circularity
In the context of the global climate crisis, there is a need to develop low embodied carbon building systems. Moreover, construction and demolition generate substantial amounts of waste. The use of salvaged materials for structural applications presents the opportunity to divert this waste while …
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A "Veritable Jekyll and Hyde" - Epistemic Circularity and Reliabilist Theories of Justification
… perception, memory, and deduction. Epistemic circularity is a notorious problem for reliabilism. If a belief is only justified if it was produced reliably by a certain BFM, how can I ever know for sure that a certain BFM is itself reliable? For instance, take the meta-belief that "sense …
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IMPROVING THE CIRCULARITY OF BIODEGRADABLE BIOPLASTICS BY PRODUCING BIOGAS: A FULL-SCALE ASSESSMENT
Abstract Polylactic acid (PLA) is one of the commonly used bioplastics, promoted as a sustainable alternative to conventional plastics. Their anaerobic co-digestion with the organic fractions of municipal solid waste (OFMSW) is a promising end-of-life scenario, as it reduces pre-treatment and …
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Promoting pulp and paper mill material circularity: functionalised organic-inorganic cellulosic mulch films
… aim of this study was to improve the material circularity within the PPMs by connecting waste stream sinks to source streams in the plantation through the formation of a green, soil-degradable mulch film (MF) with water retention, fertiliser slow-release, and UV-vis blocking capabilities. The …
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Breast Cancer Classification of Mammographic Masses Using Circularity Max Metric, A New Method
… between existing method, which is called Circularity Range Ratio and proposed method, which is called Circularity Max. The result shows that the proposed Circularity Max method improves the Matthews Correlation Coefficient, specificity, sensitivity and accuracy. Therefore, the shape metric …
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Therapist Orientation and Circularity-Linearity of Causality, Responsibility, Intentionality, and Blame for Clinical Problems
<p>Differences in circularity of attributions of causality, responsibility, intentionality and blame for clinical problems by therapists of psychodynamic, behavioral and systems orientations, a psychiatrist group, and an attorney control group were investigated using the Circularity-Linearity …
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Circularity assessment of a company in the sector of industrial vehicles, agricultural and construction equipment
L'abstract è presente nell'allegato / the abstract is in the attachment
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Cooling Innovation and Circularity: Addressing Water Stress in the Age of AI-Driven Data Centers
This thesis examines the growing demand for data centers and the critical challenges posed by their water and energy consumption. As artificial intelligence (AI) technologies expand, the infrastructure supporting these systems has become essential. The study highlights the projected increase in …
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Stepping out of line: A systems-thinking, materials-centric approach to designing for sneaker circularity
Designing for sneaker circularity presents an opportunity to recover material value within an industry that produces 20+ billion pairs of shoes each year. However, the barriers to a circular sneaker economy are reflected in the complexity of sneaker design, as well as the broader system elements …
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Promoting material circularity in pulp and paper mills: organic-inorganic cellulosic composites for slow-release of nutrients
The pulp and paper industry generates large quantities of waste, while the forestry sector experiences economic and environmental challenges with commercial fertilisers. Slow/controlled-release fertilisers (SCRFs) offer an opportunity to repurpose waste-stream materials and improve nutrient …
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Application of circularity tools for the sustainability evaluation of the urbanization process (case study; city of Seville)
… Systems (GIS) to develop a robust city circularity evaluation system. The methodology unfolds in three phases: (1) Indicator Identification – a systematic literature review and semantic analysis, supported by NLP and clustering algorithms, led to the classification of 241 circular city …
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APPLY LADDER OF CHEMICAL CIRCULARITY: RECYCLING OF RARE EARTH ELEMENTS RECOVERED FROM ELETRONIC WASTE AS A CATALYST IN ORGANIC REACTION.
This thesis investigates the application of lanthanide-based Lewis acids and copper catalysts in asymmetric and homogeneous catalysis, with a specific focus on continuous flow chemistry. The research extensively examines the Michael addition reaction between indoles and benzylidene malonates, …
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