Digital Commons Network^™

14-01 Exploring The Equity Dimensions Of Us Bicycle Sharing Systems, C. Scott Smith, Jun-Seok Oh, Cheyenne Lei

Transportation Research Center Reports

Research over the past several decades has made it increasingly clear that livable communities are inextricably linked with the provision of opportunities for active and/or non-motorized transportation; i.e., walking, cycling and their variants. An emerging phenomena that is working within the broader movement of active transportation is public bicycle sharing systems (BSS). Such systems have grown considerably in the US in recent years and, in some cases, are dramatically changing the ecology of urban transport. Alongside celebrations of the early successes of US BSS, have been criticisms that these systems have not been adequately integrated into lower-income communities; a pattern …

Optimization Of Containership Speed Based On Operation And Environment Regulations, Changjiang Yu

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Risk Assessment Of Water Area In The Shanghai Port, Na Lin

Maritime Safety & Environment Management Dissertations (Dalian)

No abstract provided.

Research On Xiamen Port Network Layout From The Perspective Of Harbors And Inland Ports Linked Development, Yijun Zheng

World Maritime University Dissertations

No abstract provided.

The Geometric Algorithm Of Inverse And Direct Problems With An Area Solution For The Great Elliptic Arcs, Wei-Kuo Tseng, Jiunn-Liang Guo, Chung-Ping Liu

Journal of Marine Science and Technology–Taiwan

The definition of the connecting edge(s) between two vertices in a geography type is the great elliptic minor arc in Microsoft SQL Server’s Geography Type. Similar to the way an edge is defined by Microsoft SQL Server, an edge in Geodyssey’s Hipparchus library is also defined as a great circle arc on a reference sphere. Using Hipparchus for their computations, IBM’s DB2 Geodetic Extender and Informix Geodetic Datablade share this definition. Compact formulae are given for the great elliptic sailing on a spheroid providing solutions to both the forward and inverse problems with exceptional accuracy, and latitude in terms of …

Describing Landscape Structure Improvement According To Experimental Results, Fu-Ming Chang, Ning-Chien Tung

Journal of Marine Science and Technology–Taiwan

This study investigated silt movement and the influence of fine sand on downstream ecology during movement by using a small indoor physical model for simulating onsite conditions. The obtained data were analyzed to determine the impact of silt on ecological habitats and can serve as a reference for future onsite and ecology investigations. Before a dam was removed to allow a downstream riverway to restore the initial environment, the riverway stabilized at approximately 960 s, and the dam was removed at approximately 1140 s. After the dam was removed, the silt in each channel section evidently increased, and after a …

A Community Of World Class Engineering Students, Devshikha Bose, Krishna Pakala

Mechanical and Biomedical Engineering Faculty Publications and Presentations

This paper is a work in progress report on an Engineering Living Learning Community (LLC) at Boise State University. Though the LLC under consideration is for the time period of Fall 2014 to Fall 2016, this report is limited to student as well as instructor anecdotal and self-reported experiences, observations, and evaluations made during Fall 2014 and Spring 2015. The mission of the Residential College program at BSU is to integrate student academic and personal life in a residential setting, so as to develop interdisciplinary knowledge, foster deep learning, and maximize student success. In support of this goal, students completed …

Evaluating The Use Of Crowdsourcing As A Data Collection Method For Bicycle Performance Measures And Identification Of Facility Improvement Needs, Miguel A. Figliozzi, Bryan Philip Blanc

Civil and Environmental Engineering Faculty Publications and Presentations

This research developed a smartphone application called ORcycle to collect cyclists’ routes, users, and comfort levels. ORcycle combines GPS revealed route data collection with new questionnaires that try to elicit cyclists’ attitudes as well as comfort levels and factors that influence their perceived comfort and route choice. The new questionnaires were developed to better understand how cyclists’ comfort levels are affected by route characteristics, route stressors, safety reports, cyclists’ demographics, and cyclists’ cycling attitude. Preliminary results show that many trip characteristics, route choice factors, route stressors and demographic variables are correlated with comfort levels. ORcycle is the first statewide deployment …

Capturing Optically Important Constituents And Properties In A Marine Biogeochemical And Ecosystem Model, S. Dutkiewicz, A. E. Hickman, O. Jahn, W. W. Gregg, C. B. Mouw, M. J. Follows, C. Mouw

Michigan Tech Publications, Part 1

We present a numerical model of the ocean that couples a three-stream radiative transfer component with a marine biogeochemical-ecosystem component in a dynamic three-dimensional physical framework. The radiative transfer component resolves the penetration of spectral irradiance as it is absorbed and scattered within the water column. We explicitly include the effect of several optically important water constituents (different phytoplankton functional types; detrital particles; and coloured dissolved organic matter, CDOM). The model is evaluated against in situ-observed and satellite-derived products. In particular we compare to concurrently measured biogeochemical, ecosystem, and optical data along a meridional transect of the Atlantic Ocean. The …

Interdisciplinary Modeling For Water-Related Issues Graduate Course, Laurel Saito, Alexander Fernald, Timothy Link

All ECSTATIC Materials

The science and management of aquatic ecosystems is inherently interdisciplinary, with issues associated with hydrology, atmospheric science, water quality, geochemistry, sociology, economics, environmental science, and ecology. Addressing water resources issues in any one discipline invariably involves effects that concern other disciplines, and attempts to address one issue often have consequences that exacerbate existing issues or concerns, or create new ones (Jørgensen et al. 1992; Lackey et al. 1975; Straskraba 1994) due to the strongly interactive nature of key processes (Christensen et al. 1996). Thus, research and management of aquatic ecosystems must be interdisciplinary to be most effective, but such truly …

Optimization Of The Quantity Of Heated/Refrigerated Air Required For Ventilating Underground Mines With Ventilation-On-Request Systems, Samuel C. Wiley

Graduate Theses & Non-Theses

Development of deeper and more complex orebodies has increased the demand for efficient use of the air ventilating underground mining operations. Deeper and heavily mechanized operations present increasing difficulty for maintaining the air temperatures encountered by personnel, which must be removed to ensure their safety and health. The efficient use of air is made possible by the implementation of Ventilation-on-Request (VOR) systems. However, reductions in the quantity of air supplied by VOR may reduce the quantity below that which is necessary for effective heat exchange.

The objective of this thesis is to develop a heat simulation program that will determine …

Toward A Spatial-Temporal Measure Of Land-Use Mix, Steven R. Gehrke, Kelly Clifton

Civil and Environmental Engineering Faculty Publications and Presentations

Urban planning and public-health research has long been interested in the connection between land-use mix and travel. Interest from urban planners stems from the potential of transportation efficiency gains achieved by an increased land-use mix and subsequent shortening of trip lengths; whereas, public-health research advocates an increased land-use mix as an effective policy for facilitating greater physical activity. Yet, despite the transportation, land-use, and health benefits related to improving land-use mix and the extent of topical attention given by researchers, no consensus has been reached regarding the magnitude of its effect on travel. This absence of agreement may largely be …

Ecohydrological Modeling In Agroecosystems: Examples And Challenges, Amilcare Porporato, X. Feng, S. Manzoni, Y. Mau, Anthony J. Parolari, G. Vico

Civil and Environmental Engineering Faculty Research and Publications

Human societies are increasingly altering the water and biogeochemical cycles to both improve ecosystem productivity and reduce risks associated with the unpredictable variability of climatic drivers. These alterations, however, often cause large negative environmental consequences, raising the question as to how societies can ensure a sustainable use of natural resources for the future. Here we discuss how ecohydrological modeling may address these broad questions with special attention to agroecosystems. The challenges related to modeling the two‐way interaction between society and environment are illustrated by means of a dynamical model in which soil and water quality supports the growth of human …

Impair-Then-Repair: A Brief History & Global-Scale Hypothesis Regarding Human-Water Interactions In The Anthropocene, Charles J. Vörösmarty, Michel Meybeck, Christopher L. Pastore

Advanced Science Research Center

Water is an essential building block of the Earth system and a nonsubstitutable resource upon which humankind must depend. But a growing body of evidence shows that freshwater faces a pandemic array of challenges. Today we can observe a globally significant but collectively unorganized approach to addressing them. Under modern water management schemes, impairment accumulates with increasing wealth but is then remedied by costly, after-the-fact technological investments. This strategy of treating symptoms rather than underlying causes is practiced widely across rich countries but leaves poor nations and many of the world's freshwater life-forms at risk. The seeds of this modern …

Virtual Capstone Design Teams: Preparing For Global Innovation, Jay Goldberg, Susannah Howe

Engineering: Faculty Publications

Global innovation requires collaboration between groups of people located in different parts of the world, and is a growing trend in industry. Virtual teams are often used to manage new product development projects. These teams are similar to traditional teams but are geographically separated and rely heavily on virtual methods of communication (email, Skype, teleconferencing, etc.) instead of regular face-to-face meetings. Experience working as a member of a virtual capstone design team can help prepare students for this growing trend. To begin preparing students for work on virtual teams in industry, we co-advised two virtual capstone design projects with students …

Consumer Perceptions Towards Package Designs: A Cross Cultural Study, Romica Chandra Lal, Fritz Yambrach, Lucy Mcproud

Journal of Applied Packaging Research

The choice of one package or the other can be an economic decision or can be influenced by cultural acceptance or perception of individual convenience. Product package systems can be designed for one-time use or multiple-use purposes. Package perceptions in different countries typically develop from a variety of factors, including climate, lifestyle, and cultural acceptance with regard to particular products. In an increasingly global economy with multinational firms marketing products worldwide, it is important to understand the differences between consumer needs and consumer responses to product-package systems.

The objective of this research was to examine consumer perceptions of different product …

Agenda: Innovations In Managing Western Water: New Approaches For Balancing Environmental, Social, And Economic Outcomes, University Of Colorado Boulder. Getches-Wilkinson Center For Natural Resources, Energy, And The Environment

Innovations in Managing Western Water: New Approaches for Balancing Environmental, Social and Economic Outcomes (Martz Summer Conference, June 11-12)

Many aspects of western water allocation and management are the product of independent and uncoordinated actions, several occurring a century or more ago. However, in this modern era of water scarcity, it is increasingly acknowledged that more coordinated and deliberate decision-making is necessary for effectively balancing environmental, social, and economic objectives. In recent years, a variety of forums, processes, and tools have emerged to better manage the connections between regions, sectors, and publics linked by shared water systems. In this event, we explore the cutting edge efforts, the latest points of contention, and the opportunities for further progress.

Sustainable Design In Ghana, Anthony Decosta, Amanda Laufer, Theresa Mcardle

Civil, Environmental and Sustainable Engineering Senior Theses

Sustainable homes are difficult for the people of Gambibgo, Ghana to build, as there are few natural building materials in the area other than earth and water, and their subsistencefarming lifestyle leaves very little money for the purchase of sourced material like lumber, steel, or cement. Traditional homes in Gambibgo are constantly rebuilt, costing the communityaround $250 at least once every five years. Our team, with Father James Reites, S.J. and two alums, traveled to Gambibgo in March 2015 with an earthen roof design we had hoped to implement on the existing walls of thecommunity's homes. Upon our arrival we …

Hayward Shoreline Levee Protection, Samuel Beering, Karissa Canonizado, Caleb Young

Civil, Environmental and Sustainable Engineering Senior Theses

The area from north of the San Mateo Bridge to Hayward Landing in the city of Hayward is at risk of flooding due to thirty-six inch sea level rise in the next 50-100 years. The areas that the this flooding would have a negative environmental impact as well as impact businesses and other residents near the project area. To protect these areas new shoreline protection was proposed. To begin designing new shore protection, the existing levee was analyzed on GeoSlope after doing numerous soil testing. It was found that the existing levee would fail against overtopping. After evaluating three alternatives, …

The Orisome: Structure And Function, Julia E. Grimwade, Alan C. Leonard

Biomedical Engineering and Sciences Faculty Publications

During the cell division cycle of all bacteria, DNA-protein complexes termed orisomes trigger the onset of chromosome duplication. Orisome assembly is both staged and stringently regulated to ensure that DNA synthesis begins at a precise time and only once at each origin per cycle. Orisomes comprise multiple copies of the initiator protein DnaA, which oligomerizes after interacting with specifically positioned recognition sites in the unique chromosomal replication origin, oriC. Since DnaA is highly conserved, it is logical to expect that all bacterial orisomes will share fundamental attributes. Indeed, although mechanistic details remain to be determined, all bacterial orisomes are capable …

The Dc House Project: Electrical System Design & Construction, John Bradley

Electrical Engineering

This project entails the design and assembly of the photovoltaic system, switchboard panel enclosure, and battery enclosure for the DC House’s main electrical system. The intended purpose of this project is to provide the electrical framework necessary for future students to easily modify and add to this rendition of the DC House. The principle design implements a variety of renewable energy sources, however this senior project only uses solar power in order to maintain a manageable scope. Each of these renewable energy sources are stepped down to a voltage of 24V and input to a Multi Input Single Output DC …

A Customer Value Assessment Process (Cvap) For Ballistic Missile Defense, Alex Hernandez

Master's Theses

A systematic customer value assessment process (CVAP) was developed to give system engineering teams the capability to qualitatively and quantitatively assess customer values. It also provides processes and techniques used to create and identify alternatives, evaluate alternatives in terms of effectiveness, cost, and risk. The ultimate goal is to provide customers (or decision makers) with objective and traceable procurement recommendations. The creation of CVAP was driven by an industry need to provide ballistic missile defense (BMD) customers with a value proposition of contractors’ BMD systems. The information that outputs from CVAP can be used to guide BMD contractors in formulating …

Solar Decathlon Plumbing Subsystem Final Design Report, Robert Burtt, Chris Lutze, Tyler Dunaway

Mechanical Engineering

The U.S. Department of Energy announced it will be hosting an international public competition called the Solar Decathlon in Irvine, CA during October 2015 to showcase high-efficiency houses. Cal Poly students created a team – Solar Cal Poly – to participate. Three mechanical engineering students joined the team to work on the plumbing section of the competition. The team completed multiple iterations and designs of the plumbing system within the Solar Cal Poly house as the house was designed and redesigned. The construction and final design of the plumbing system will be decided by the construction crew and architecture team …

Using Swat To Simulate Crop Yields And Salinity Levels In The North Fork River Basin, Usa, Aaron R. Mittelstet, Daniel E. Storm, Art L. Stoecker

Department of Agricultural and Biological Systems Engineering: Faculty Publications

Crop yields and salinity levels in the North Fork of the Red River (North Fork River) basin, located in southwestern Oklahoma and the Texas Panhandle, were analyzed based on the diverse climate in the region. Saline irrigation water is a major problem in the basin. The Elm Fork Creek flows through salt deposits, making the creek and its receiving stream, the North Fork River, too saline to use for irrigation. This greatly reduces the number of hectares that can be utilized for agricultural crops within the basin. A baseline SWAT model was setup, calibrated and validated to simulate streamflow and …

Tethys Platform: A Development And Hosting Platform For Water Resources Web Apps, Nathan R. Swain

Theses and Dissertations

The interactive nature of web applications or “web apps” makes it an excellent medium for conveying complex scientific concepts to lay audiences and creating decision support tools that harness cutting edge modeling techniques. However, the technical expertise required to develop them represents a barrier for would-be developers. The barrier can be characterized by the following hurdles that developers must overcome: (1) identify, select, and install software that meet the spatial and computational capabilities commonly required for water resources modeling; (2) orchestrate the use of multiple FOSS and FOSS4G projects and navigate their differing application programming interfaces (APIs); (3) learn the …

Global Technology Experiences For Upper-Division Engineering Students: An Assessment, Patricia Backer, Wenchiang Chung

Faculty Publications

In order for students to thrive in the highly competitive global economy, it is critical for them to develop international perspectives and appreciation. As a result, in 2004, the San Jose State University’s Charles W. Davidson College of Engineering established a one-million-dollar Global Technology Initiative (GTI) program. The mission of the GTI program is to expand students’ horizons about the opportunities and challenges of a global economy, to expose them to global, environmental, and energy problems in which technology plays a central role, to motivate their learning of global issues and different cultures, and to introduce them to a more …

Climatic, Ecophysiological, And Phenological Controls On Plant Ecohydrological Strategies In Seasonally Dry Ecosystems, Giulia Vico, Sally E. Thompson, Stefano Manzoni, Annalisa Molini, John D. Albertson, Jarcilene S. Almeida-Cortez, Philip A. Fay, Xue Feng, Andrew J. Guswa, Hu Liu, Tiffany G. Wilson, Amilcare Porporato

Engineering: Faculty Publications

Large areas in the tropics and at mid-latitudes experience pronounced seasonality and inter-annual variability in rainfall and hence water availability. Despite the importance of these seasonally dry ecosystems (SDEs) for the global carbon cycling and in providing ecosystem services, a unifying ecohydrological framework to interpret the effects of climatic variability on SDEs is still lacking. A synthesis of existing data about plant functional adaptations in SDEs, covering some 400 species, shows that leaf phenological variations, rather than physiological traits, provide the dominant control on plant-water-carbon interactions. Motivated by this result, the combined implications of leaf phenology and climatic variability on …

Santa Clara Creek Restoration, Scott Cameron

Civil, Environmental and Sustainable Engineering Senior Theses

The Santa Clara River Valley is an area that has traditionally had a considerably high water table and that remains relatively true today as a result of a local adoption of imported surface water to meet most needs. Historically, the result of this high water table was a network of meandering waterways throughout the valley, several of which came extremely close to our own Santa Clara University. Despite this, there are no natural surface water systems that exist in this location today. In 1851, a Santa Clara county surveyor report showed one creek in particular that flowed nearly to the …

An Exploratory Scenario For San Francisco To Become A Walking, Bicycling And Transit City, Chaowen Huang

Master's Projects and Capstones

The effects of greenhouse gases (GHGs) on global warming and climate change have become increasingly evident, and the transportation sector is a dominant contributor to GHG emissions which responsible for 13% of the world’s total GHG emissions and more than 21% of overall energy-related CO₂ emissions. Cities need sustainable transportation system that integrate new technologies and strategies to provide efficient and effective transit service while reducing its GHG emission and improving its livability. This paper explores a suitable and sustainable transportation scenario for San Francisco to achieve its 2035 goal which is to reduce 1,767,500 metric tons GHG emissions …

Design And Development Of Personal Geoservices For Universities, James Carswell, Andrea Ballatore, Thoa Pham, Junjun Yin, Linh Truonghong

Books/Book chapters

Personal GeoServices are emerging as an interaction paradigm linking users to information rich environments like a university campus or to Big Data sources like the Internet of Things by delivering spatially intelligent web-services. OpenStreetMap (OSM) constitutes a valuable source of spatial base-data that can be extracted, integrated, and utilised with such heterogeneous data sources for free. In this paper, we present a Personal GeoServices application built on OSM spatial data and university-specific business data for staff, faculty, and students. While generic products such as Google Maps and Google Earth enable basic forms of spatial exploration, the domain of a university …