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Active Noise Barrier Minimizing Pressure Gradient, Carl Hart, Siu-Kit Lau 2010 University of Nebraska-Lincoln

Active Noise Barrier Minimizing Pressure Gradient, Carl Hart, Siu-Kit Lau

Architectural Engineering -- Faculty Publications

Minimization of the sound pressure field within the shadow zone of a noise barrier is achieved by reducing the pressure gradient along a line, at the top of a barrier, via active noise control. The noise control effectiveness of a barrier is increased by this strategy, especially for specific system configurations. The proposed method was evaluated by numerical simulation. Results indicate that system orientation has little effect on minimizing the pressure gradient at the top of the barrier when the error sensors are invisible to the primary noise disturbance. Highly effective control within the shadow zone and close to the ...


Noise Propagation Through Open Windows Of Finite Depth Into An Enclosure, Caleb Sieck, Siu-Kit Lau 2010 University of Nebraska-Lincoln

Noise Propagation Through Open Windows Of Finite Depth Into An Enclosure, Caleb Sieck, Siu-Kit Lau

Architectural Engineering -- Faculty Publications

Predicting the insertion loss of an opening backed with an enclosed space is important for building noise control. Recent research in sound transmission through apertures of finite depth in infinite rigid baffles has included the effects of propagating and evanescent modes within the aperture in order to extend models to higher frequencies. The present study extends the model to the case of the aperture backed by a cavity as opposed to sound radiating into half-space. The role of coupling between the aperture modes, radiation modes, and cavity modes in the transmission was investigated. The results were compared to those of ...


Advancements In Dual-Pump Broadband Cars For Supersonic Combustion Measurements, Sarah Augusta. Tedder 2010 College of William & Mary - Arts & Sciences

Advancements In Dual-Pump Broadband Cars For Supersonic Combustion Measurements, Sarah Augusta. Tedder

Dissertations, Theses, and Masters Projects

Space- and time-resolved measurements of temperature and species mole fractions of nitrogen, oxygen, and hydrogen were obtained with a dual-pump coherent anti-Stokes Raman spectroscopy (CARS) system in hydrogen-fueled supersonic combustion free jet flows. These measurements were taken to provide time-resolved fluid properties of turbulent supersonic combustion for use in the creation and verification of computational fluid dynamic (CFD) models. CFD models of turbulent supersonic combustion flow currently facilitate the design of air- breathing supersonic combustion ramjet (scramjet) engines. Measurements were made in supersonic axi-symmetric free jets of two scales. First, the measurement system was tested in a laboratory environment using ...


Strategies For Lidar Characterization Of Particulates From Point And Area Sources, Michael D. Wojcik, Kori D. moore, Randy Martin, Jerry Hatfield 2010 Utah State University

Strategies For Lidar Characterization Of Particulates From Point And Area Sources, Michael D. Wojcik, Kori D. Moore, Randy Martin, Jerry Hatfield

Civil and Environmental Engineering Faculty Publications

Use of ground based remote sensing technologies such as scanning lidar systems (light detection and ranging) has gained traction in characterizing ambient aerosols due to some key advantages such as wide area of regard (10 km2 ), fast response time, high spatial resolution (m) and high sensitivity. Energy Dynamics Laboratory and Utah State University, in conjunction with the USDA-ARS, has developed a three-wavelength scanning lidar system called Aglite that has been successfully deployed to characterize particle motion, concentration, and size distribution at both point and diffuse area sources in agricultural and industrial settings. A suite of massbased and size distribution point ...


Silver-Polyimide Nanocomposite Films: Single-Stage Synthesis And Analysis Of Metalized Partially-Fluorinated Polyimide Btda/4-Bdaf Prepared From Silver(I) Complexes, Joshua Erold Robert Abelard 2010 College of William & Mary - Arts & Sciences

Silver-Polyimide Nanocomposite Films: Single-Stage Synthesis And Analysis Of Metalized Partially-Fluorinated Polyimide Btda/4-Bdaf Prepared From Silver(I) Complexes, Joshua Erold Robert Abelard

Dissertations, Theses, and Masters Projects

No abstract provided.


Processing And Conversion Of Algae To Bioethanol, Sara Katherine Kampfe 2010 College of William & Mary - Arts & Sciences

Processing And Conversion Of Algae To Bioethanol, Sara Katherine Kampfe

Dissertations, Theses, and Masters Projects

No abstract provided.


Multifunctional Polymer Synthesis And Incorporation Of Gadolinium Compounds And Modified Tungsten Nanoparticles For Improvement Of Radiation Shielding For Use In Outer Space, Emily Grace Harbert 2010 College of William & Mary - Arts & Sciences

Multifunctional Polymer Synthesis And Incorporation Of Gadolinium Compounds And Modified Tungsten Nanoparticles For Improvement Of Radiation Shielding For Use In Outer Space, Emily Grace Harbert

Dissertations, Theses, and Masters Projects

No abstract provided.


Near Infrared Photovoltaic Micro-Cell For Optical Fibre Based Power Harvesting, Gary Allwood 2010 Edith Cowan University

Near Infrared Photovoltaic Micro-Cell For Optical Fibre Based Power Harvesting, Gary Allwood

Theses : Honours

A photonic power system using a silicon or germanium based device as a photonic power converter was proposed. The properties of each device were investigated to determine the optimum structure, design, configuration and efficiency for power conversion. These included, but were not limited to, device geometry, doping concentration and the wavelength of the incident beam. Relevant inferences were made from the results obtained and compared to previous work. Currently, research into photovoltaic power converters is focused on the efficiencies of complex heterostuctures made from gallium-arsenide compounds. Here, the properties of a silicon device were investigated in detail as the predicted ...


Alleviation Of Spindle Transfer, Blake Ochs, Whitney Bone 2010 California Polytechnic State University - San Luis Obispo

Alleviation Of Spindle Transfer, Blake Ochs, Whitney Bone

Industrial and Manufacturing Engineering

Haas Automation, Inc. is one of the largest CNC machine tool builders in the world. They produce an assortment of machines that come in many different sizes, however, all machines have in common the central tool that allows them to perform their surfacing and bore functions, the spindle. As with the machines themselves, the spindles can also range in size depending on the type of machine they are going into. These spindles are assembled step by step and as components are added to them, several models become so heavy that it is not feasible to have operators lift them by ...


Process Design For Aeration Of Facial Prosthetic, Nathaniel J. Urciuoli 2010 California Polytechnic State University - San Luis Obispo

Process Design For Aeration Of Facial Prosthetic, Nathaniel J. Urciuoli

Industrial and Manufacturing Engineering

Facial prosthetics are becoming a necessary step for the recovery of injured veterans and civilians who have suffered severe facial burning. Current users of such prosthetics are not able to wear the prosthetic for an extended period of time due to uncomfortable conditions created by the silicone material. A solution for this problem was to develop a process for creating small holes similar to skin pores that will both ventilate and aid in the evaporation of accumulated sweat under the prosthetic.

The main steps of this process were to create a flexible fixture capable of supporting and securing the prosthetic ...


Determining A Reliability Factor For Photovoltaic's In San Luis Obispo, Ryan S. Roach 2010 California Polytechnic State University - San Luis Obispo

Determining A Reliability Factor For Photovoltaic's In San Luis Obispo, Ryan S. Roach

Industrial and Manufacturing Engineering

This project will analyze raw photovoltaic (PV) solar panel performance data in order to determine a reliability factor for solar panels in San Luis Obispo. This project is a subset of a larger project being performed by SLO RESCO, which is funded by a grant from the California Energy Commission. Their project will explore the use of solar, wind, geothermal, and biomass renewable resources. The scope of this project is limited to a small section of RESCO's analysis of solar panel technology and implementation in which a reliability factor will be generated.

The objective is to determine a reliability ...


Layout And Procedure Re-Design Of Dcpp Receiving Warehouse, Nicole Elizabeth Riegel 2010 California Polytechnic State University - San Luis Obispo

Layout And Procedure Re-Design Of Dcpp Receiving Warehouse, Nicole Elizabeth Riegel

Industrial and Manufacturing Engineering

The receiving warehouse at Diablo Canyon Power Plant, owned by Pacific Gas and Electric, serves as a place to recognize the receiving of items into an ERP system, repackage and label items for long-term storage, and organize items for delivery inside the secured area. The warehouse managers would like to redesign the layout and procedures of the warehouse. Currently items are not received, scanned, or shipped in a timely manner. The flow of people and items in the receiving and shipping area is chaotic and space is limited especially during plant outages. The objective of this project is to: • Redesign ...


E.J. Gallo Winery Spirit-Makers Facility, Aaron Pickar 2010 California Polytechnic State University - San Luis Obispo

E.J. Gallo Winery Spirit-Makers Facility, Aaron Pickar

Industrial and Manufacturing Engineering

With growing demand for E.J. Gallo spirit brands, the cramped and cluttered facility allocated to the spirit-makers does not provide an adequate work environment to design and test new hard alcohols. E.J. Gallo Winery wants to relocate the spirit-makers to a new facility located near the brandy production floor for under 200,000 dollars. In order to do this, a revised systematic approach to facility design is used.

In this process, the departments are first defined, then the relationships between these departments and the space requirements are documented. Once these planning steps are complete, alternative layouts are constructed ...


Implementing Rfid To Improve Animal Shelter Inventory And Allocation, Adam Mach 2010 California Polytechnic State University - San Luis Obispo

Implementing Rfid To Improve Animal Shelter Inventory And Allocation, Adam Mach

Industrial and Manufacturing Engineering

The purpose of this project is to observe the best way to incorporate Radio Frequency Identification (RFID) technology into the animal inventory system present in animal shelters, while also observing the benefits of implementing this system. The Woods Humane Society was used in this project as a sample animal care facility that could benefit from this application.

Many RFID systems can be observed in other industries, but very few examples this technology exist in animal shelters or smaller animal care facilities. Part of the reason for that is because funds are scarce at most animal care facilities, like the Woods ...


Non-Profit Management System For Friends Of The Elephant Seal, Matthew Justus, Robert Macasi, Jeff Zinn 2010 California Polytechnic State University - San Luis Obispo

Non-Profit Management System For Friends Of The Elephant Seal, Matthew Justus, Robert Macasi, Jeff Zinn

Industrial and Manufacturing Engineering

Friends of the Elephant Seal (FES) are a non-profit organization based in San Simeon, California. Their current method of tracking and reporting information is inefficient. A project was proposed to develop a new information management system for FES, install it at their office and provide training including a user manual. The project was divided into three parts: Database Design and Implementation; User Interface Design and Ergonomics; and User Manual & Help System.

The objective of the project was to design a user-friendly interface specifically for the FES worker that allowed for easy access to data entry functions, reporting functions and mailing ...


Decision Analysis Tool For Appropriate Water Treatment Technologies In Improverished Villages, Conner David Johnston 2010 California Polytechnic State University - San Luis Obispo

Decision Analysis Tool For Appropriate Water Treatment Technologies In Improverished Villages, Conner David Johnston

Industrial and Manufacturing Engineering

No abstract provided.


T.K. Ripper: A Multidisciplinary Group Project, Logan Hunt 2010 California Polytechnic State University - San Luis Obispo

T.K. Ripper: A Multidisciplinary Group Project, Logan Hunt

Industrial and Manufacturing Engineering

The purpose of this project is to provide solutions to objectives that require an industrial engineering (IE) background for a multidisciplinary group senior project. The group is creating a portable winch pulley, dubbed the T.K. Ripper, which will be used for extreme water sports. The group is interested in creating a business using this product, and has forecasted demand for the next three years. The objectives that were assigned from the group were a flow process chart, the cost of producing the product themselves in their own facility, the cost of producing the product if outsourced to China, how ...


Funeral Services Marketing Interface To Enhance Customer Service And Overall Productivity, Alyssa R. Habing 2010 California Polytechnic State University - San Luis Obispo

Funeral Services Marketing Interface To Enhance Customer Service And Overall Productivity, Alyssa R. Habing

Industrial and Manufacturing Engineering

Customer satisfaction is the ultimate goal of any business regardless of the industry it resides in; it’s the sole driver of a company’s productivity levels and overall success within the market. Although numb to most market fluctuations, the funeral industry needs to reinvent their business strategies continuously in order to increase their market share. It’s especially important for smaller funeral homes across the world to take this idea to another level in order to stay competitive with the larger, corporate establishments. In the past twenty years, the industry has grown exponentially due to more interest and popularity ...


Design And Development Of An Integrated Waste Management System For Huai Nam Khun, Thailand, Annie Duong 2010 California Polytechnic State University - San Luis Obispo

Design And Development Of An Integrated Waste Management System For Huai Nam Khun, Thailand, Annie Duong

Industrial and Manufacturing Engineering

Background

A rural village in Thailand has always been limited in access to waste collection services and processing facilities. As a result, their behaviors of disposing waste in ineffective manners such as dumping and burning causes a variety of environmental impacts. In addition, the people dwelling in these areas are often unaware of the health risks associated to these types of engagements because of the inadequate education system. For a long time coming these circumstances remained untouched until a non-profit organization recently shed light to the need for a solution. An investigation, to develop a design solution in order to ...


Design Of A Low Cost Powered R/C Combat Airplane And Manufacturing Plan, Jonathan N. Bailey 2010 California Polytechnic State University - San Luis Obispo

Design Of A Low Cost Powered R/C Combat Airplane And Manufacturing Plan, Jonathan N. Bailey

Industrial and Manufacturing Engineering

The goals of this project are to design a low cost powered remote control combat airplane capable of outdoor flight, named the Aero EX and to develop a manufacturing plan to produce each unit at a selling price of $200, while operating at a 25 vehicle batch rate inside a 1,000 square foot facility. These goals are achieved using: Aerospace fundamentals to design the vehicle, Design for Manufacturability to optimize the design for minimal use of labor, Design for Assembly to give consumers the ability to build the vehicle without fixtures, Pull production to eliminate scheduling and match customer ...


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