Open Access. Powered by Scholars. Published by Universities.®

Engineering Commons

Open Access. Powered by Scholars. Published by Universities.®

122626 Full-Text Articles 136477 Authors 31196003 Downloads 248 Institutions

All Articles in Engineering

Faceted Search

122626 full-text articles. Page 6 of 3276.

A Framework For Measuring The Spatial Equity In The Distribution Of Public Transportation Benefits, Seyyed Amir Hosein Mortazavi, Meisam Akbarzadeh 2017 Isfahan University of Technology

A Framework For Measuring The Spatial Equity In The Distribution Of Public Transportation Benefits, Seyyed Amir Hosein Mortazavi, Meisam Akbarzadeh

Journal of Public Transportation

This paper proposes that an equitable transit system requires that the geographical distribution of transit service benefits conform to the geographical distribution of the citizens with the greatest need for public transportation. This is the essence of vertical equity. This study calculated “connectivity power,” which reflects public transit service quality in each traffic analysis zone (TAZ) in a city to indicate the amount of benefit that TAZ is receiving from the transit system. The number of carless citizens in each TAZ was also calculated as an index of need to the public transit services in that area. Conformity of need ...


Android Mobile Application For Hospital Executives, Vihitha Nalagatla 2017 California State University - San Bernardino

Android Mobile Application For Hospital Executives, Vihitha Nalagatla

Electronic Theses, Projects, and Dissertations

Hospitals are the largest and most complex organizations where health care is provided. Safe and effective patient care services in hospitals depend on the efficient decisions made by hospital executives. The main task of hospital executives is to ensure the hospital can provide high quality patient care and services. “Android Mobile Application For Hospital Executives” is an Android application used for displaying hospital performance metrics on a daily basis. This application allows hospital executives to review and monitor hospital operational data with ease of access and in a portable manner. Thus, reducing the effort of the hospital executives to perform ...


Inspire E-News 3 2017, Western Michigan University 2017 Western Michigan University

Inspire E-News 3 2017, Western Michigan University

College of Engineering and Applied Sciences Newsletter

  • SAE Baja vehicle shreds the track in the Blizzard Baja
  • Engineering deans bring ideas and issues to Capitol Hill
  • Formula SAE vehicle to hit the track at Fiat Chrysler before competition


Automatic Generation Of Web Applications And Management System, Yu Zhou 2017 California State University, San Bernardino

Automatic Generation Of Web Applications And Management System, Yu Zhou

Electronic Theses, Projects, and Dissertations

One of the major difficulties in web application design is the tediousness of constructing new web pages from scratch. For traditional web application projects, the web application designers usually design and implement web application projects step by step, in detail. My project is called “automatic generation of web applications and management system.” This web application generator can generate the generic and customized web applications based on software engineering theories. The flow driven methodology will be used to drive the project by Business Process Model Notation (BPMN). Modules of the project are: database, web server, HTML page, functionality, financial analysis model ...


Benzene Formation In Electronic Cigarettes, James F. Pankow, Kilsun Kim, Kevin J. McWhirter, Wentai Luo, Jorge O. Escobedo, Robert M. Strongin, Anna K. Duell, David H. Peyton 2017 Portland State University

Benzene Formation In Electronic Cigarettes, James F. Pankow, Kilsun Kim, Kevin J. Mcwhirter, Wentai Luo, Jorge O. Escobedo, Robert M. Strongin, Anna K. Duell, David H. Peyton

Chemistry Faculty Publications and Presentations

The heating of the fluids used in electronic cigarettes (“e-cigarettes”) used to create “vaping” aerosols is capable of causing a wide range of degradation reaction products. We investigated formation of benzene (an important human carcinogen) from e-cigarette fluids containing propylene glycol (PG), glycerol (GL), benzoic acid, the flavor chemical benzaldehyde, and nicotine.


Technical Report: Control Using The Smooth Robustness Of Temporal Logic, Yash Vardhan Pant, Houssam Abbas, Rahul Mangharam 2017 University of Pennsylvania

Technical Report: Control Using The Smooth Robustness Of Temporal Logic, Yash Vardhan Pant, Houssam Abbas, Rahul Mangharam

Real-Time and Embedded Systems Lab (mLAB)

Cyber-Physical Systems must withstand a wide range of errors, from bugs in their software to attacks on their physical sensors. Given a formal specification of their desired behavior in Metric Temporal Logic (MTL), the robust semantics of the specification provides a notion of system robustness that can be calculated directly on the output behavior of the system, without explicit reference to the various sources or models of the errors. The robustness of the MTL specification has been used both to verify the system offline (via robustness minimization) and to control the system online (to maximize its robustness over some horizon ...


Power Sector Carbon Index: Data, Sources, And Methods, Greg Schivley, Adam Goldstein, Constantine Samaras, Ines L. Azevedo, Haibo Zhai, H. Scott Matthews 2017 Carnegie Mellon University

Power Sector Carbon Index: Data, Sources, And Methods, Greg Schivley, Adam Goldstein, Constantine Samaras, Ines L. Azevedo, Haibo Zhai, H. Scott Matthews

Department of Civil and Environmental Engineering

The Power Sector Carbon Index provides an estimate of the carbon dioxide intensity of the U.S. power sector using publicly available data sources. The most current information and all index charts are available at www.emissionsindex.org. The analysis code and data are available for download at https://github.com/EmissionsIndex/Emissions-Index. The Power Sector Carbon Index was created by researchers in Carnegie Mellon University’s Scott Institute for Energy Innovation.


Maximum Soil Organic Carbon Storage In Midwest U.S. Cropping Systems When Crops Are Optimally Nitrogen-Fertilized, Hanna J. Poffenbarger, Daniel W. Barker, Matthew J. Helmers, Fernando E. Miguez, Daniel C. Olk, John E. Sawyer, Johan Six, Michael J. Castellano 2017 Iowa State University

Maximum Soil Organic Carbon Storage In Midwest U.S. Cropping Systems When Crops Are Optimally Nitrogen-Fertilized, Hanna J. Poffenbarger, Daniel W. Barker, Matthew J. Helmers, Fernando E. Miguez, Daniel C. Olk, John E. Sawyer, Johan Six, Michael J. Castellano

Agronomy Publications

Nitrogen fertilization is critical to optimize short-term crop yield, but its long-term effect on soil organic C (SOC) is uncertain. Here, we clarify the impact of N fertilization on SOC in typical maize-based (Zea mays L.) Midwest U.S. cropping systems by accounting for site-to-site variability in maize yield response to N fertilization. Within continuous maize and maize-soybean [Glycine max (L.) Merr.] systems at four Iowa locations, we evaluated changes in surface SOC over 14 to 16 years across a range of N fertilizer rates empirically determined to be insufficient, optimum, or excessive for maximum maize yield. Soil organic C ...


Analysis Of Autonomous Vehicle Policies, Bryan Gibson 2017 University of Kentucky

Analysis Of Autonomous Vehicle Policies, Bryan Gibson

Kentucky Transportation Center Research Report

The rapid development and adoption of connected and autonomous vehicles will transform the U.S. transportation system over the next 30 years. Although the widespread use of fully connected and autonomous vehicles is still several years away, it is nonetheless critical that legislators, policymakers, and regulators understand how the presence of these vehicles will restructure the operation of roadway networks. Without a doubt, lawmakers and policymakers will need to develop new laws — and revise existing ones — to account for the presence of connected and autonomous vehicles. This report provides an overview of connected and autonomous vehicles — their positives and negatives ...


Using Supervised Learning To Compensate For High Latency In Planetary Exploration, Andrew Jones, Jeremy Straub 2017 North Dakota State University--Fargo

Using Supervised Learning To Compensate For High Latency In Planetary Exploration, Andrew Jones, Jeremy Straub

Jeremy Straub

Planetary exploration utilizes orbital, aerial, surface and potentially sub-surface vehicles at remote locations. At present, many of these vehicles must be teleoperated or commanded from Earth, requiring data to be transmitted over significant distances (taking several minutes or longer). This problem gets progressively more pronounced as vehicles are operated further and further from the Earth. While missions to send humans to deep space and increased autonomy both prospectively present partial solutions to this challenge, human controllers may wish to operate the vehicle with an experience more akin to in-situ exploration.

Typically, using remotely operated vehicles for exploring planets entails dealing ...


Zone Based Hybrid Approach For Clustering And Data Collection In Wireless Sensor Networks, Karanam R. Dayananda, Jeremy Straub 2017 North Dakota State University--Fargo

Zone Based Hybrid Approach For Clustering And Data Collection In Wireless Sensor Networks, Karanam R. Dayananda, Jeremy Straub

Jeremy Straub

A wireless sensor network (WSN) is a collection of
spatially distributed autonomous sensor nodes that can be used to
monitor, among other things, environmental conditions. WSN
sensor nodes are constrained by their limited energy supply,
communication range and local computational capabilities. Data
routing is an area that can be optimized to allow nodes to conserve
energy, improving the network’s overall lifetime. Though many
routing protocols can be used, using a clustering protocol can play
an important role in conserving WSN energy. Under this
approach, the network is divided into multiple clusters. The
leader of each cluster supervises data transmission ...


Sio Multi-Line Laser-Induced Fluorescence For Quantitative Temperature Imaging In Flame-Synthesis Of Nanoparticles, Robin S.M. Chrystie Ph.D., Omid Feroughi, Thomas Dreier, Christof Schulz 2017 University of Cambridge

Sio Multi-Line Laser-Induced Fluorescence For Quantitative Temperature Imaging In Flame-Synthesis Of Nanoparticles, Robin S.M. Chrystie Ph.D., Omid Feroughi, Thomas Dreier, Christof Schulz

Robin Chrystie

Silicon monoxide (SiO) is an intermediate in
the gas-phase synthesis of SiO2
nanoparticles and coatings.
We demonstrate a method for in situ imaging the gas-phase
temperature via multi-line laser-induced fluorescence (LIF)
using excitation in the A1Π–X1Σ+(0,0) band near 235 nm.
A low-pressure lean (3 kPa, φ = 0.39) premixed hydrogen/
oxygen flame was seeded with 210 ppm hexamethyldisiloxane
(HMDSO) to produce SiO2
nanoparticles. Spectral
regions with no interference from other species in the flame
were located, and the excitation-spectral range that provides
the best temperature sensitivity was determined from
numerical experiments. Quenching rates of the selected
transitions ...


Seven Basic Tools Of Quality Control: The Appropriate Techniques For Solving Quality Problems In The Organizations, Behnam Neyestani 2017 De La Salle University

Seven Basic Tools Of Quality Control: The Appropriate Techniques For Solving Quality Problems In The Organizations, Behnam Neyestani

Behnam Neyestani

 Dr. Kaoru Ishikawa was first total quality management guru, who has been associated with the development and advocacy of using the seven quality control (QC) tools in the organizations for problem solving and process improvements. Seven old quality control tools are a set of the QC tools that can be used for improving the performance of the production processes, from the first step of producing a product or service to the last stage of production. So, the general purpose of this paper was to introduce these 7 QC tools. This study found that these tools have the significant roles to ...


Seven Basic Tools Of Quality Control: The Appropriate Techniques For Solving Quality Problems In The Organizations, Behnam Neyestani 2017 De La Salle University

Seven Basic Tools Of Quality Control: The Appropriate Techniques For Solving Quality Problems In The Organizations, Behnam Neyestani

Behnam Neyestani

 Dr. Kaoru Ishikawa was first total quality management guru, who has been associated with the development and advocacy of using the seven quality control (QC) tools in the organizations for problem solving and process improvements. Seven old quality control tools are a set of the QC tools that can be used for improving the performance of the production processes, from the first step of producing a product or service to the last stage of production. So, the general purpose of this paper was to introduce these 7 QC tools. This study found that these tools have the significant roles to ...


Chiral Light Intrinsically Couples To Extrinsic/Pseudo-Chiral Metasurfaces Made Of Tilted Gold Nanowires, Alessandro Belardini, Marco Centini, Grigore Leahu, David C. Hooper, Roberto Li Voti, Eugenio Fazio, Joseph W. Haus, Andrew Sarangan, Ventsislav K. Valev, Concita Sibilia 2017 Sapienza Università di Roma

Chiral Light Intrinsically Couples To Extrinsic/Pseudo-Chiral Metasurfaces Made Of Tilted Gold Nanowires, Alessandro Belardini, Marco Centini, Grigore Leahu, David C. Hooper, Roberto Li Voti, Eugenio Fazio, Joseph W. Haus, Andrew Sarangan, Ventsislav K. Valev, Concita Sibilia

Andrew Sarangan

Extrinsic or pseudo-chiral (meta)surfaces have an achiral structure, yet they can give rise to circular dichroism when the experiment itself becomes chiral. Although these surfaces are known to yield differences in reflected and transmitted circularly polarized light, the exact mechanism of the interaction has never been directly demonstrated. Here we present a comprehensive linear and nonlinear optical investigation of a metasurface composed of tilted gold nanowires. In the linear regime, we directly demonstrate the selective absorption of circularly polarised light depending on the orientation of the metasurface. In the nonlinear regime, we demonstrate for the first time how second ...


Chiral Light Intrinsically Couples To Extrinsic/Pseudo-Chiral Metasurfaces Made Of Tilted Gold Nanowires, Alessandro Belardini, Marco Centini, Grigore Leahu, David C. Hooper, Roberto Li Voti, Eugenio Fazio, Joseph W. Haus, Andrew Sarangan, Ventsislav K. Valev, Concita Sibilia 2017 Sapienza Università di Roma

Chiral Light Intrinsically Couples To Extrinsic/Pseudo-Chiral Metasurfaces Made Of Tilted Gold Nanowires, Alessandro Belardini, Marco Centini, Grigore Leahu, David C. Hooper, Roberto Li Voti, Eugenio Fazio, Joseph W. Haus, Andrew Sarangan, Ventsislav K. Valev, Concita Sibilia

Joseph W Haus

Extrinsic or pseudo-chiral (meta)surfaces have an achiral structure, yet they can give rise to circular dichroism when the experiment itself becomes chiral. Although these surfaces are known to yield differences in reflected and transmitted circularly polarized light, the exact mechanism of the interaction has never been directly demonstrated. Here we present a comprehensive linear and nonlinear optical investigation of a metasurface composed of tilted gold nanowires. In the linear regime, we directly demonstrate the selective absorption of circularly polarised light depending on the orientation of the metasurface. In the nonlinear regime, we demonstrate for the first time how second ...


Regulating By Robot: Administrative Decision Making In The Machine-Learning Era, Cary Coglianese, David Lehr 2017 University of Pennsylvania Law School

Regulating By Robot: Administrative Decision Making In The Machine-Learning Era, Cary Coglianese, David Lehr

Faculty Scholarship

Machine-learning algorithms are transforming large segments of the economy, underlying everything from product marketing by online retailers to personalized search engines, and from advanced medical imaging to the software in self-driving cars. As machine learning’s use has expanded across all facets of society, anxiety has emerged about the intrusion of algorithmic machines into facets of life previously dependent on human judgment. Alarm bells sounding over the diffusion of artificial intelligence throughout the private sector only portend greater anxiety about digital robots replacing humans in the governmental sphere. A few administrative agencies have already begun to adopt this technology, while ...


Plasma Enhanced Chemical Vapor Deposition (Pecvd) Of Silicon Nitride (Sinx) Using Oxford Instruments System 100 Pecvd, Meredith Metzler, Raj Patel 2017 Singh Center for Nanotechnology

Plasma Enhanced Chemical Vapor Deposition (Pecvd) Of Silicon Nitride (Sinx) Using Oxford Instruments System 100 Pecvd, Meredith Metzler, Raj Patel

Tool Data

This report discusses the deposition process of SiNx using the Oxford System 100 PECVD.


Defect Engineering: A Path Toward Exceeding Perfection, Hamed Attariani, Kasra Momeni, Kyle Adkins 2017 Wright State University - Lake Campus

Defect Engineering: A Path Toward Exceeding Perfection, Hamed Attariani, Kasra Momeni, Kyle Adkins

Hamed Attariani

Moving to nanoscale is a path to get perfect materials with superior properties. Yet defects, such as stacking faults (SFs), are still forming during the synthesis of nanomaterials and, according to common notion, degrade the properties. Here, we demonstrate the possibility of engineering defects to, surprisingly, achieve mechanical properties beyond those of the corresponding perfect structures. We show that introducing SFs with high density increases the Young’s Modulus and the critical stress under compressive loading of the nanowires above those of a perfect structure. The physics can be explained by the increase in intrinsic strain due to the presence ...


Review Of: Eat Your Genes: How Genetically Modified Food Is Entering Our Diet (Stephen Nottingham Ed.), Natalie Duval 2017 University of New Hampshire

Review Of: Eat Your Genes: How Genetically Modified Food Is Entering Our Diet (Stephen Nottingham Ed.), Natalie Duval

RISK: Health, Safety & Environment

Review of the book: "Eat Your Genes: How Genetically Modified Food Is Entering Our Diet," by Stephen Nottingham, (St. Martin's Press 1999). Introduction, Glossary, Bibliography, Index. ISBN 1-85649-578-7 [212 pp. $17.95. Softbound, St. Martin's Press, Inc., New York, NY 10010].


Digital Commons powered by bepress