Academic literature on the topic '120499 Engineering Design not elsewhere classified'
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Journal articles on the topic "120499 Engineering Design not elsewhere classified"
Farid, A. M., and D. C. McFarlane. "Production degrees of freedom as manufacturing system reconfiguration potential measures." Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture 222, no. 10 (October 1, 2008): 1301–14. http://dx.doi.org/10.1243/09544054jem1056.
Full textAhmad, Hesham S., Maha D. Ayoush, and Majed S. Al-Alwan. "Causes of delay to public infrastructure projects according to engineers representing different contract parties." Built Environment Project and Asset Management 10, no. 1 (December 17, 2019): 153–79. http://dx.doi.org/10.1108/bepam-03-2019-0026.
Full textDissertations / Theses on the topic "120499 Engineering Design not elsewhere classified"
(8763150), Amanda Johnston. "Teacher Talk in Engineering Design Projects." Thesis, 2020.
Find full textTeacher talk is a major way in which instructors support and provide scaffolding for their students, frame their pedagogies, model ways of thinking, and convey ideas. Effective teacher talk about engineering design at all levels of students’ educational experiences has the potential to better prepare students for success in engineering and increase the diversity of engineering fields. However, the most effective ways for teachers to talk to their students during engineering design are not well understood. This three-study dissertation examines the ways in which instructors use talk to interact with their students through a variety of different engineering design settings and contexts, with potential implications to improve and educate how teachers present engineering to their students. Overall, this thesis addresses the research question: How do instructors (teachers and professors) use talk interactions to scaffold students in engineering design? The first study is a case study that focuses on the whole class verbal interactions of an experienced and successful teacher throughout the entirety of a month-long life science-based STEM integration unit in a 6th grade classroom. Results show that this teacher’s talk helped to integrate engineering with the science and mathematics content of the unit and modeled the practices of informed designers to help students learn engineering in the context of their science classroom. He framed lessons around problem scoping, incorporated engineering ideas into scientific verbal interactions and aligned individual lessons and the overall unit with the engineering design process. The second study uses naturalistic inquiry to examine how six different teachers of 6th, 7th, and 8th grades talked to their students while the students were actively working in small teams on engineering design projects. Results indicate that the teachers had conversations with the students about many areas of engineering, demonstrating that middle school teachers can have high-level conversations with their students about their design ideas. However, when students struggle to communicate their ideas, the different levels of support outlined in the coding framework and examples provide a structure of support for teachers to give their students. Additionally, there were many areas of engineering that were underemphasized in the teachers’ talk and each teacher had different emphasis. The third study examines how professors in mechanical and biomedical engineering talk to their students during introductory engineering design projects. Results show that the three professors used their talk to support their role as a guide and mentor to students during their projects, although they had different goals with their mentoring. They used their talk to push students’ ideas to consider their problems more broadly, encouraged students to brainstorm diverse out-of-the-box ideas, supported teaming, and modeled engineering language. They maintained a focus on non-technical content, including the iterative nature of design, teaming, and communication, but made references to how students would apply this knowledge in future, more technical projects. The professors supported many challenges for novice designers, including supporting prototype development to represent ideas and iterating to improve their ideas, but were not comprehensive in their support of other challenges, especially problem scoping, testing and troubleshooting, and reflecting on the process. The final chapter of this dissertation presents a synthesis across the three studies and a summary of the implications for teaching. These implications include many examples of high-quality engineering conversations with students at different levels of their education, identification of aspects of engineering education that are underemphasized in teachers’ talk to their students, and connections to needed areas of support and professional development for teachers.
(7011485), Altyngul Jumabayeva. "Model-based Analysis and Design of Color Screen Sets for Clustered-Dot Periodic Halftoning and Design of Monochrome Screens Based on Direct Binary Search for Aperiodic Dispersed-Dot Halftoning." Thesis, 2020.
Find full textPeriodic clustered-dot halftones are widely used in electrophotographic printers due to the relatively poor print stability of this class of printers. It is important to analyze the nature and the causes of perceived fluctuation in order to understand the factors that prevent the high-end digital presses from achieving the same print quality as the commercial offset presses. In order to better approximate the screen sets used for the commercial offset presses, irregular screen sets can be considered. We start by developing a set of candidate screen tile-vectors that best fit the specified screen frequency, screen angle, and printer resolution. We then perform Fourier-based analysis of regular and irregular periodic, clustered-dot halftone textures in order to understand how perceived fluctuation relates to the halftoning technology. After exploring the search for the best single separation geometry, we consider the superposition of multiple periodic clustered-dot halftones, and propose to apply HVS-based model, which assists us in finding the best color assignments to the superimposed halftones. It turned out that the choice of the best color assignments depends on different combinations of colorant absorptance values, hence we propose to apply different color assignments within the image depending on the local color and content of the image. Next, we propose a step-by-step screen design for standard and high resolution periodic irregular clustered-dot halftones. Finally, we presented monochrome DBS-based screen design with overlapping clusters of 2 × 2 or 3 × 3 pixels, which can also be used in electrophotographic printers.
(11016081), Yang Wang. "DESIGN AND IMPLEMENTATIONS OF OPEN-SOURCE AG IOT DEVICES FOR FARM MACHINERY DATA ACQUISITION AND INTEGRATED ANALYTICS." Thesis, 2021.
Find full textresultant clusters between on-road and in-field data samples as well as normal and anomalous activities. The second problem concentrates on combine unloading event detections using GPS tracks of multiple combines in 16 harvest sessions. The identified events from a novel algorithm that couples Interacting Multiple Models filtering and composite rules were utilized to estimate the total yield for each session. The estimated yields had an overall accuracy of over 90% when comparing to the actual weight ticket records. Lastly, two instantaneous metrics, instantaneous area capacity and swath utilization, were proposed and estimated using GPS tracks of multiple combines in 7 different fields during various harvest years. A novel algorithm was created for estimating instantaneous actual harvested area and swath utilization. This enabled exact computations of instantaneous metrics as oppose to conventional rough estimates of area capacity. Harvest performances were evaluated both temporally and geospatially by machines and years. It was discovered that three contributing factors that lead to high area capacity were wide header attachments, high harvesting speed, and uniform harvesting patterns. Moreover, it was found that the benefit of a wider header might diminish if the harvesting speed was low.
(5929889), Joo Min Kim. "Behavior, Analysis and Design of Steel-Plate Composite (SC) Walls for Impactive Loading." Thesis, 2019.
Find full text(5930033), Curtis P. Martin. "RATIONAL DESIGN OF TYPE II KINASE INHIBITORS VIA NOVEL MULTISCALE VIRTUAL SCREENING APPROACH." Thesis, 2019.
Find full text(6997520), Bo Zhang. "A DESIGN PARADIGM FOR DC GENERATION SYSTEM." Thesis, 2020.
Find full text(5930180), Ashish Ranjan. "Energy-efficient Memory System Design with Spintronics." Thesis, 2019.
Find full textModern computing platforms, from servers to mobile devices, demand ever-increasing amounts of memory to keep up with the growing amounts of data they process, and to bridge the widening processor-memory gap. A large and growing fraction of chip area and energy is expended in memories, which face challenges with technology scaling due to increased leakage, process variations, and unreliability. On the other hand, data intensive workloads such as machine learning and data analytics pose increasing demands on memory systems. Consequently, improving the energy-efficiency and performance of memory systems is an important challenge for computing system designers.
Spintronic memories, which offer several desirable characteristics - near-zero leakage, high density, non-volatility and high endurance - are of great interest for designing future memory systems. However, these memories are not drop-in replacements for current memory technologies, viz. Static Random Access Memory (SRAM) and Dynamic Random Access Memory (DRAM). They pose unique challenges such as variable access times, and require higher write latency and write energy. This dissertation explores new approaches to improving the energy efficiency of spintronic memory systems.
The dissertation first explores the design of approximate memories, in which the need to store and access data precisely is foregone in return for improvements in energy efficiency. This is of particular interest, since many emerging workloads exhibit an inherent ability to tolerate approximations to their underlying computations and data while still producing outputs of acceptable quality. The dissertation proposes that approximate spintronic memories can be realized either by reducing the amount of data that is written to/read from them, or by reducing the energy consumed per access. To reduce memory traffic, the dissertation proposes approximate memory compression, wherein a quality-aware memory controller transparently compresses/decompresses data written to or read from memory. For broader applicability, the quality-aware memory controller can be programmed to specify memory regions that can tolerate approximations, and conforms to a specified error constraint for each such region. To reduce the per-access energy, various mechanisms are identified at the circuit and architecture levels that yield substantial energy benefits at the cost of small probabilities of read, write or retention failures. Based on these mechanisms, a quality-configurable Spin Transfer Torque Magnetic RAM (STT-MRAM) array is designed in which read/write operations can be performed at varying levels of accuracy and energy at runtime, depending on the needs of applications. To illustrate the utility of the proposed quality-configurable memory array, it is evaluated as an L2 cache in the context of a general-purpose processor, and as a scratchpad memory for a domain-specific vector processor.
The dissertation also explores the design of caches with Domain Wall Memory (DWM), a more advanced spintronic memory technology that offers unparalleled density arising from a unique tape-like structure. However, this structure also leads to serialized access to the bits in each bit-cell, resulting in increased access latency, thereby degrading overall performance. To mitigate the performance overheads, the dissertation proposes a reconfigurable DWM-based cache architecture that modulates the active bits per tape with minimal overheads depending on the application's memory access characteristics. The proposed cache is evaluated in a general purpose processor and improvements in performance are demonstrated over both CMOS and previously proposed spintronic caches.
In summary, the dissertation suggests directions to improve the energy efficiency of spintronic memories and re-affirms their potential for the design of future memory systems.
(6618812), Harsh Patel. "IMPLEMENTING THE SUPERPAVE 5 ASPHALT MIXTURE DESIGN METHOD IN INDIANA." Thesis, 2019.
Find full text(6641012), Genisson Silva Coutinho. "FACULTY BELIEFS AND ORIENTATIONS TO TEACHING AND LEARNING IN THE LAB: AN EXPLORATORY CASE STUDY." Thesis, 2019.
Find full text(8796875), Dana L. Moryl. "A STUDY ON APHONOPELMA SEEMANI BIOMECHANICS OF MOTION WITH EMPHASIS ON POTENTIAL FOR BIOMIMETIC ROBOTICS DESIGN." Thesis, 2020.
Find full textWith a stable center of mass, pneumatic-aided movement, and the ability to scale multiple terrain types, the uniquely efficient and lightweight form of spiders has changed the way we think about robotic design. While the number of papers on arachnid biomechanics and spider-based biomimetic robots has been increasing in recent years, the style of analysis and the motion-types analyzed have barely changed since the 1980s. Current analyses are based on a force plate and treadmill design, in which the spider is induced into an escape run. This environmental change can affect the movements of the spider. Here I propose a novel method of testing the biomechanical and kinematic properties of spiders using a tank with a built-in sensor matrix which allows for a more natural environment for the specimens and provides force data from individual legs. The system detects a minimum force of .0196 N and has a sampling rate of 1,000 samples /second, which allows for the analysis of forces during the step. Aphonopelma seemanni, a tarantula commonly used in such research, but whose forces during movement have to date not been analyzed, was recorded walking across the matrix, and the forces, step patterns, joint angles, and center of mass deviations were recorded. Walking indicated significantly different step pattern traits than current literature, and forces per leg (.07281 N±.0235) recorded were much smaller than expected in comparison to other spiders. Statistical analysis also indicated no changes in walking movement over a range of temperatures, which also varies from literature. These findings indicate that further research on spiders should be done with respect to walking gaits in order to improve upon current biomimetic models.
Book chapters on the topic "120499 Engineering Design not elsewhere classified"
Galpin, Vashti. "Women in Technology in Sub-Saharan Africa." In Global Information Technologies, 1681–88. IGI Global, 2008. http://dx.doi.org/10.4018/978-1-59904-939-7.ch122.
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