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Investigating Block Mask Lithography Variation Using Finite-Difference Time-Domain Simulation, Daiji Kawamura
Investigating Block Mask Lithography Variation Using Finite-Difference Time-Domain Simulation, Daiji Kawamura
Theses
Simulation work has long been realized as a method for analyzing semiconductor processing expediently and cost-effectively. As technology advancements strive to meet increasingly stringent parameter constraints, difficult issues arise. In this paper, challenges in block mask lithography will be discussed with the aid of using simulation packages developed by Panoramic Technology®. Halo formation utilizes a 20-30° tilt-angle implantation [1]. The block mask defines the geometries of the resist opening to allow implantation of atoms to extend into the channel region. Due to designed resolution scaling and tolerance in conjunction with substrate topography, there can be undesired influence on the electrical …
A Dynamic Inventory Optimization Method Applied To Printer Fleet Management, Surya Saripalli
A Dynamic Inventory Optimization Method Applied To Printer Fleet Management, Surya Saripalli
Theses
Current optimization methods for inventory management of toner cartridges for printer fleets typically focus on aggregate cartridge demand. However, with the development of printer technology, toner consumption algorithms are being developed which can accurately quantify the amount of toner that has been consumed over time, based on print job characteristics. This research introduces a dynamic inventory optimization approach for a fleet of printers over a rolling time horizon. Given, the consumption algorithm for the printer system, the cumulative toner consumed per cartridge per printer can be tracked. A forecasting method is developed which utilizes this toner consumption data for individual …
Evaluation Of Cfd Based Hemolysis Prediction Methods, Oyuna Myagmar
Evaluation Of Cfd Based Hemolysis Prediction Methods, Oyuna Myagmar
Theses
Accurate quantitative evaluation of shear stress-related hemolysis (destruction of red blood cells) could be used to improve blood handling devices, including left ventricular assist devices (LVAD). Computational Fluid Dynamics (CFD) predicts the fluid dynamics of complex pump geometry and has been used to track the shear stress history of red blood cells as they travel through these devices. Several models that predict the relationship between hemolysis, shear stress and exposure time have been used to evaluate the hemolysis in the pumps. However, the prediction accuracy has not reached the satisfactory level. The goal of my thesis is to investigate the …
Design And Development Of A Sustainability Toolkit For Simulation Modeling And Analysis, Xi Zhou
Design And Development Of A Sustainability Toolkit For Simulation Modeling And Analysis, Xi Zhou
Theses
A simulation-based sustainability toolkit is developed in this research, in order to efficiently provide the capability of modeling and evaluating the sustainability related performance measures in systems of interest. As sustainability related issues, such as energy consumption, emissions, and waste generation are becoming a more integrated part of operational and long-term planning decisions, simulation modeling is needed to analyze the system performance not only from the traditional system performance measures such as productivity and efficiency, but also taking into account the environmental impacts within the studied system in order to aid in decision-making. This research introduces the concept and general …
Design Of A Test Loop For Performance Testing Of Steam Turbines Under A Variety Of Operating Conditions, Jonathan Guerrette
Design Of A Test Loop For Performance Testing Of Steam Turbines Under A Variety Of Operating Conditions, Jonathan Guerrette
Theses
The steam turbine is one of the most widely used energy conversion devices in the world, providing shaft power for electricity production, chemical processing, and HVAC systems. There are new opportunities in growing renewable and combined cycle applications. End-users are asking for energy efficiency improvements that require manufacturers to renew their experimentally verified design methods. A structured design approach was carried out along three integrated research thrusts. The first two thrusts, Turbine Performance Prediction and Measurement Planning, were carried out with the aim of supporting the theoretical modeling required for the third thrust, System Modeling. The primary use of the …
An Analysis Of Multimodal Sensor Fusion For Target Detection In An Urban Environment, Brian M. Flusche
An Analysis Of Multimodal Sensor Fusion For Target Detection In An Urban Environment, Brian M. Flusche
Theses
This work makes a compelling case for simulation as an attractive tool in designing cutting-edge remote sensing systems to generate the sheer volume of data required for a reasonable trade study. The generalized approach presented here allows multimodal system designers to tailor target and sensor parameters for their particular scenarios of interest via synthetic image generation tools, ensuring that resources are best allocated while sensors are still in the design phase. Additionally, sensor operators can use the customizable process showcased here to optimize image collection parameters for existing sensors. In the remote sensing community, polarimetric capabilities are often seen as …
Ray-Traced Simulation Of Radiation Pressure For Optical Lift, Timothy Peterson
Ray-Traced Simulation Of Radiation Pressure For Optical Lift, Timothy Peterson
Theses
When light refracts at a surface, it changes the direction and intensity of the light rays. By Newton's 3rd law, this process imparts a small momentum to the object. This effect can be exploited to manipulate very small objects, by carefully selecting the shape and optical properties of the object. This thesis describes a computational model based on the laws of physics to determine the forces and torques resulting from light interacting with a hemicylindrical particle. This model has been successfully used to predict for the first time a phenomenon called optical lift.