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Full-Text Articles in Engineering
Impact Of Constructing A Low Crested Weir In Cape Canaveral On Flushing In The Banana River, Atousa Saberi
Impact Of Constructing A Low Crested Weir In Cape Canaveral On Flushing In The Banana River, Atousa Saberi
Theses and Dissertations
The purpose of this study is to determine the extent to which constructing a low crested weir adjacent to Port Canaveral improves ushing in the Banana River. The Banana River is a 50 km long sub-basin of Indian River Lagoon (IRL), located between Cape Canaveral and Merritt Island in Brevard County. Although Port Canaveral locks connect the Banana River to the ocean, the locks remain closed when there are no passing vessels; therefore, it has limited circulation and a long ushing time. Declining water quality can be linked to recent high mortality events of di erent species living in the …
Resistance Prediction For Asymmetrical Configurations Of High-Speed Catamaran Hull Forms, Srikanth Asapana
Resistance Prediction For Asymmetrical Configurations Of High-Speed Catamaran Hull Forms, Srikanth Asapana
Theses and Dissertations
Predicting the resistance of a high-speed catamaran has been of interest to naval architects for the last three decades. Even though considerable amount of research has been carried out in this area, there remains a degree of uncertainty in the accurate resistance prediction of catamaran hull forms in the early design stage. Researches carried out so far have generally ignored the resistance characteristics of unconventional and unsymmetrical catamaran hull forms. This thesis attempts to undertake a comparative analysis of resistance characteristics between newly developed unconventional catamaran hull forms of different configurations derived from existing conventional NPL series of round bilge …
Review Of Aviation Research: A Content Analysis Of Articles Published In The Collegiate Aviation Review, 2007–2012, Safak Aktemur
Review Of Aviation Research: A Content Analysis Of Articles Published In The Collegiate Aviation Review, 2007–2012, Safak Aktemur
Theses and Dissertations
The purpose of the study was to conduct a content analysis of the methodological quality of articles published in the Collegiate Aviation Review (CAR)” a refereed journal of the University Aviation Alliance (UAA)”to determine if actual practices of aviation researchers were consistent with commonly recommended research methods and procedures. The accessible population consisted of the 76 articles published in CAR between 2007 and 2012 (Volumes 25“30). The sample consisted of N = 69 articles and excluded literature reviews, meta-analyses, studies that described the development or validation of an instrument, philosophical inquiries, position papers, or historical studies. The analysis focused on …
Contribution To T He Onboard Context Sensitive Information System ( Of Commercial Aircraft, Wei Tan
Contribution To T He Onboard Context Sensitive Information System ( Of Commercial Aircraft, Wei Tan
Theses and Dissertations
Pilots currently use paper-based documentation and electronic systems (e.g., Electronic Centralized Aircraft Monitor (ECAM) for Airbus, and Engine Indication and Crew Alerting System (EICAS) for Boeing) to help them perform procedures to ensure safety, efficiency and comfort on commercial aircrafts. Management of interconnections among paper-based operational documents can be a challenge for pilots, especially when time pressure is high in normal, abnormal, and emergency situations. This dissertation is a contribution to the design of an Onboard Context-Sensitive Information System (OCSIS). The claim is that the use of contextual information facilitates access to appropriate operational content at the right time either …
Cfd Investigation Of Resistance Of High-Speed Trimaran Hull Forms, Chang Hwan Son
Cfd Investigation Of Resistance Of High-Speed Trimaran Hull Forms, Chang Hwan Son
Theses and Dissertations
Although catamarans continue to increase in size and application with bigger and better designs than the present generation, trimaran and multi-hull forms for high-speed operation are a recent phenomenon due to speed of turnaround time and payload. To fulfill the stringent requirement for commercial and military transportation, various versions of optimum design are being undertaken recently. In particular, the high-speed ferry industry is presently looking at novel hull forms such as the form of trimarans and pentamarans which are considered in one of the most affordable hull forms for high-speed operation around the world. However, few published articles are in …
Self-Organization Of Protein Fibers In Weightlessness, Dylan Bell
Self-Organization Of Protein Fibers In Weightlessness, Dylan Bell
Theses and Dissertations
It is currently hypothesized and widely believed that the growth of self aggregating protein chains such as amyloid fibers has a direct effect on the function of the human brain. We hypothesized creating self-assembling protein in weightlessness would allow the aggregation to continue for a longer period of time in solution without sedimentation. When protein de-natures and self-organizes into amyloid fibers the effect can be detrimental. Some neurodegenerative diseases, such as Alzheimer’s and Dementia, are believed to be caused by the collection of these fibers made from proteins such as tau and amyloid-β. For the purpose of this experiment, lysozyme …
Consumers’ Trust In Pilots Based On Pilot’S Preference For Use Of Breathalyzer In The Cockpit, Katie Marie Reid
Consumers’ Trust In Pilots Based On Pilot’S Preference For Use Of Breathalyzer In The Cockpit, Katie Marie Reid
Theses and Dissertations
Trust has been studied across disciplines for years, with the focus looking at trust between individuals, between individuals and organizations, and between organizations (Lee & See, 2004). Establishing trust between people has been an issue for decades (Simpson, 2011), but defining it has proved difficult as well. Within the aviation industry, there has been a lack of research exploring how trust is affected from the consumer’s or passenger’s perspective. Aviation is one of the major forms of transportation in today’s culture, and understanding consumers’ trust is important for safety and economic reasons. The current study will use a 5-point Likert-type …
Modeling Force Main Systems For Surge Analysis And Studying Dynamic Response Due To Water Hammer, Wissam Al-Taliby
Modeling Force Main Systems For Surge Analysis And Studying Dynamic Response Due To Water Hammer, Wissam Al-Taliby
Theses and Dissertations
The major impact of water hammer on force mains integrity include excessive pressure oscillation that is usually accompanied by pipe vibrations. Models for simulating force main water hammer response have been developed. All of these models were based on the method of characteristics (MOC) and most of them were not calibrated for the lack of efficient field data. Although predicting maximum pressure during the first wave cycle is sufficient in most applications, some applications require precise prediction of pressure damping. One-dimensional models usually over predict pressure oscillation beyond the first cycle since they are based on steady friction expressions. It …
Impact Of Collagen-Incorporation Within Electrospun Vascular Conduits On The Inflammatory Response And Conduit Mechanics, Karamveer Birthare
Impact Of Collagen-Incorporation Within Electrospun Vascular Conduits On The Inflammatory Response And Conduit Mechanics, Karamveer Birthare
Theses and Dissertations
Current surgical alternatives for treating coronary artery diseases are limited in patients with systemic vascular diseases due to unavailability of suitable autologous vessels. The overall goal of this research project is to develop an appropriate tissue engineered vascular grafts (TEVGs) for small-diameter (<6 mm) arteries. Current grafts fail from intimal hyperplasia, caused by hyperproliferation of the smooth muscle cells (SMCs), and graft thrombosis, caused by lack of functional endothelium. Formation of the endothelium, and production of pro-inflammatory species that limits the long term patency, are partially due to the accumulation of oxidized lipid species. In this study, the scaffold composition was systematically varied to assess the inflammatory response and lipid oxidation levels in a rat peritoneal model. Specifically, we determined the collagen to PCL ratio required to limit the production of pro-inflammatory species, while maintaining the required mechanical strength for vascular grafts. Electrospun conduits were prepared from 0%, 10%, and 25% blends of collagen/ PCL (w/w) and implanted in the rat peritoneal cavity for 4 weeks. The results of the study showed that scaffold composition can be varied while keeping the fiber diameter similar. Results from 10% blend conduits showed significantly higher expression for contractile markers compared to the 25% and 0% blend conditions. In general, adding collagen to the PCL conduits reduced the accumulation of oxidized species within the implanted conduits. All conduits exhibited sufficient tensile strength post- implantation. In conclusion, these results demonstrate that introducing 10% collagen into electrospun scaffolds limits the pro-inflammatory characteristics of the recruited peritoneal cells that can potentially improve patency of the TEVGs.
System Wide Trust Contagion Effect, Rian M. Mehta
System Wide Trust Contagion Effect, Rian M. Mehta
Theses and Dissertations
Trust is integral in any service industry, especially in the consumeroriented field of aviation. The first step of this research is the reorganization of the importance of trust. To understand its importance on the industry, it is necessary to study trust and its effects in depth. The purpose of this study is to further explore the relationship between the passengers’ trust in automation, and trust in humans. Oftentimes, when automation fails, some human is responsible for harboring the blame. The theory of System Wide Trust (SWT) has only been recently developed, but its effect on the field of aviation is …
Engineering Properties Of Pile Rebound Soils Based On Cone Penetration Testing, Hadeel Dekhn
Engineering Properties Of Pile Rebound Soils Based On Cone Penetration Testing, Hadeel Dekhn
Theses and Dissertations
High pile rebound (HPR) has been identified by Florida Department of Transportation (FDOT) to occur during the installation of square prestressed concrete piles at many sites in Florida. Significant pile rebound values of up to 1.5 inch/blow were measured resulting in increased blow counts. Pile refusal is a common occurrence when blow count exceeds 240 blow/ft; leading to pile redesign and economic consequences. The overall objective of this research is to identify the engineering properties of soil deposits which may cause HPR and develop improved correlations that may be used to predict HPR during the design process. Seven sites were …
Comparing The Effect Of Smoothing And N-Gram Order : Finding The Best Way To Combine The Smoothing And Order Of N-Gram, Wenyang Zhang
Comparing The Effect Of Smoothing And N-Gram Order : Finding The Best Way To Combine The Smoothing And Order Of N-Gram, Wenyang Zhang
Theses and Dissertations
The SRILM is a toolkit for building and applying statistical language models (LMs), designed and developed primarily for use in speech recognition, statistical tagging and segmentation, and machine translation. It has been under development in the SRI Speech Technology and Research Laboratory since 1995. The toolkit has also greatly benefited from its use and enhancements during the Johns Hopkins University/CLSP summer workshops in 1995, 1996, 1997, and 2002. In this thesis, the effect of smoothing and order of N-gram for language model we build by srilm toolkit is studied. My primary method is to use comparison. Firstly, training corpus and …