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Articles 101671 - 101700 of 198086
Full-Text Articles in Engineering
Adapting Architectural Models For Visualization Using Virtual Reality Headsets, Bernardo Martinez
Adapting Architectural Models For Visualization Using Virtual Reality Headsets, Bernardo Martinez
Honors Theses
Business contracts represent a main source of income for Architects. Acquiring these contracts requires the latest and most immersive technology that improves their sales against competitors. Virtual reality provides an in-depth experience that allows clients to have a reasonable assurance that the building meets their physical expectations. Videos and photos are detached and mundane; while they provide some visual representation they will not allow the user to compare his physical characteristics (height, length, width) with a 3D model. In this paper, I describe a procedure for automatically importing 3D models from Revit into Unreal4. I also describe the workflow required …
A Markerless Augmented Reality System Using One-Shot Structured Light, Bingyao Huang
A Markerless Augmented Reality System Using One-Shot Structured Light, Bingyao Huang
Theses and Dissertations
Augmented reality (AR) is a technology that superimposes computer-generated 3D and/or 2D information on the user’s view of a surrounding environment in real-time, enhancing the user’s perception of the real world. Regardless of the field for which the application is applied, or its primary purpose in the scene, many AR pipelines share what might be thinned down to two specific goals, the first being range-finding the environment (whether this be in knowing a depth, precise 3D coordinates, or a camera pose estimation), and the second being registration and tracking of the 3D environment, such that an environment moving with respect …
Oxidation Process Of H 2 O /Uv For Cod Reduction Of Wastewater From Soybean Tofu Production, Komala Pontas, Abrar Muslim
Oxidation Process Of H 2 O /Uv For Cod Reduction Of Wastewater From Soybean Tofu Production, Komala Pontas, Abrar Muslim
Makara Journal of Technology
Chemical Oxygen Demand (COD) reduction of wastewater from soybean tofu production was studied by conducting advanced oxidation process (AOP) using hydrogen peroxide with UV radiation catalysts in a closed cylindrical glass reactor. The hydroxyl radical (*OH) concentration from H2O2 decomposition was modeled, and exponential trends were found for the *OH concentration over radiation time and operation temperature. As a result, it was found that the maximal *OH concentration was 0.209 mol L-1 at 240 minutes and 50 °C. The *OH concentration exponentially increased following rise in operation temperature. The H2O2/UV AOP application reduced COD concentration to approximately 42.41% from 10,545 …
Uplift Of Shoreline Regions On Pagai Island Due To The September 12, 2007 Mw 8.4 Earthquake Captured By Sar Image, Ashar Muda Lubis
Uplift Of Shoreline Regions On Pagai Island Due To The September 12, 2007 Mw 8.4 Earthquake Captured By Sar Image, Ashar Muda Lubis
Makara Journal of Technology
At least 25 people were killed by the September 12, 2007 Mw 8.4 Bengkulu earthquake, and many buildings were destroyed in Bengkulu and West Sumatra provinces. It is very important to estimate the earth surface deformation due to the earthquake to understand the rupture size and its process. The aim of this research is to estimate the shoreline change and vertical displacement on Pagai Island associated with the September 12, 2007 Mw 8.4 Bengkulu earthquake. The intensity of ALOS-PALSAR satellite images is used to access the pattern of displacement. The result shows that Pagai Island demonstrated huge uplift due to …
Effect Of Fly Ash Fortification In The Manufacture Process Of Making Concrete Towards Characteristics Of Concrete In Sulfuric Acid Solution, Asep Handaya Saputra, Muhammad Shohibi, Masatoshi Kubouchi
Effect Of Fly Ash Fortification In The Manufacture Process Of Making Concrete Towards Characteristics Of Concrete In Sulfuric Acid Solution, Asep Handaya Saputra, Muhammad Shohibi, Masatoshi Kubouchi
Makara Journal of Technology
Fly ash is a silica or alumino silica material that can be used as a constituent of cement in the concrete manufacturing process. Utilization of fly ash aims to improve durability and minimize the reduction of concrete’s compressive strength exposed to an acidic environment, which can be achieved through the pozzolanic reaction of fly ash with Ca(OH)2 within concrete. The reduced content of Ca(OH)2 through pozzolanic reaction will minimize the tendency of ettringite formation (compounds that cause deterioration and decrease the compressive strength of concrete). In order to determine the relation between fly ash replenishment into concrete with concrete’s characteristics …
Effect Of Tendon Vibration On Hemiparetic Arm Stability In Unstable Workspaces, Megan O. Conrad, Bani Gadhoke, Robert A. Scheidt, Brian D. Schmit
Effect Of Tendon Vibration On Hemiparetic Arm Stability In Unstable Workspaces, Megan O. Conrad, Bani Gadhoke, Robert A. Scheidt, Brian D. Schmit
Biomedical Engineering Faculty Research and Publications
Sensory stimulation of wrist musculature can enhance stability in the proximal arm and may be a useful therapy aimed at improving arm control post-stroke. Specifically, our prior research indicates tendon vibration can enhance stability during point-to-point arm movements and in tracking tasks. The goal of the present study was to investigate the influence of forearm tendon vibration on endpoint stability, measured at the hand, immediately following forward arm movements in an unstable environment. Both proximal and distal workspaces were tested. Ten hemiparetic stroke subjects and 5 healthy controls made forward arm movements while grasping the handle of a two-joint robotic …
Novel Time Domain Integral Equation Method Hybridized With The Macromodels Of Circuits, Huan Huan Zhang, He Ming Yao, Li (Lijun) Jun Jiang
Novel Time Domain Integral Equation Method Hybridized With The Macromodels Of Circuits, Huan Huan Zhang, He Ming Yao, Li (Lijun) Jun Jiang
Electrical and Computer Engineering Faculty Research & Creative Works
This work presents a novel transient field-circuit simulation method based on the time-domain integral equation (TDIE) and circuit macromodels. The traditional field-circuit simulation method constructs the Kirchoff's equations for lumped circuits with SPICE models, but they cannot handle problems with unknown circuit structures. The proposed method creates parametric macromodels to represent the port constitutive relations of the unknown circuits. Then the obtained macromodel is coupled with TDIE to enable the transient field-circuit cosimulation. Numerical examples are given to demonstrate the validity of the proposed method. The proposed method is targeted to solve unknown I/O modeling issues in general signal integrity …
An Organic Mixed Ion-Electron Conductor For Power Electronics, Abdellah Malti, Jesper Edberg, Hjalmar Granberg, Zia Ullah Khan, Jens W. Andreasen, Xianjie Liu, Dan Zhao, Hao Zhang, Yulong Yao, Joseph W. Brill, Isak Engquist, Mats Fahlman, Lars Wågberg, Xavier Crispin, Magnus Berggren
An Organic Mixed Ion-Electron Conductor For Power Electronics, Abdellah Malti, Jesper Edberg, Hjalmar Granberg, Zia Ullah Khan, Jens W. Andreasen, Xianjie Liu, Dan Zhao, Hao Zhang, Yulong Yao, Joseph W. Brill, Isak Engquist, Mats Fahlman, Lars Wågberg, Xavier Crispin, Magnus Berggren
Physics and Astronomy Faculty Publications
A mixed ionic–electronic conductor based on nanofibrillated cellulose composited with poly(3,4-ethylene-dioxythiophene):poly(styrene-sulfonate) along with high boiling point solvents is demonstrated in bulky electrochemical devices. The high electronic and ionic conductivities of the resulting nanopaper are exploited in devices which exhibit record values for the charge storage capacitance (1F) in supercapacitors and transconductance (1S) in electrochemical transistors.
Toward A More Scientifically Literate Public, Michael Bass
Toward A More Scientifically Literate Public, Michael Bass
UCF Forum
As a society we do a terrible job of educating our children to become scientifically literate. Sure, we have STEM (Science, Technology, Engineering and Mathematics) programs throughout the country, and with some justification we can brag about the successes of students that are in or who have graduated from such learning experiences.
Broadband High Gain Siw Ring Slot Antenna, Zhi Shen, Kirti Dhwaj, Hanseung Lee, Tatsuo Itoh, Li (Lijun) Jun Jiang
Broadband High Gain Siw Ring Slot Antenna, Zhi Shen, Kirti Dhwaj, Hanseung Lee, Tatsuo Itoh, Li (Lijun) Jun Jiang
Electrical and Computer Engineering Faculty Research & Creative Works
The slot antenna backed by the substrate integrated waveguide (SIW) cavity usually demonstrates very narrow bandwidth. In this paper, we extend the interpretation to our original dual mode SIW ring slot antenna so that a broadband radiation property based on the TE102 mode is unveiled for the first time. Through the experimental verification, over 12% bandwidth is conveniently achieved. The realized gain reaches over 7 dB. Its broadband working principle is studied in details. Simulated and measured data are both presented to verify the proposed ideas.
Advances In Autonomous-Underwater-Vehicle Based Passive Bottom-Loss Estimation By Processing Of Marine Ambient Noise, Lanfranco Muzi
Advances In Autonomous-Underwater-Vehicle Based Passive Bottom-Loss Estimation By Processing Of Marine Ambient Noise, Lanfranco Muzi
Dissertations and Theses
Accurate modeling of acoustic propagation in the ocean waveguide is important to SONAR-performance prediction, and requires, particularly in shallow water environments, characterizing the bottom reflection loss with a precision that databank-based modeling cannot achieve. Recent advances in the technology of autonomous underwater vehicles (AUV) make it possible to envision a survey system for seabed characterization composed of a short array mounted on a small AUV. The bottom power reflection coefficient (and the related reflection loss) can be estimated passively by beamforming the naturally occurring marine ambient-noise acoustic field recorded by a vertical line array of hydrophones. However, the reduced array …
Plasma Membrane Temperature Gradients And Multiple Cell Permeabilization Induced By Low Peak Power Density Femtosecond Lasers, Allen L. Garner, Bogdan Neculaes, Maxim Deminsky, Dmitry V. Dylov, Chulmin Joo, Evelina R. Loghin, Siavash Yazdanfar, Kenneth R. Conway
Plasma Membrane Temperature Gradients And Multiple Cell Permeabilization Induced By Low Peak Power Density Femtosecond Lasers, Allen L. Garner, Bogdan Neculaes, Maxim Deminsky, Dmitry V. Dylov, Chulmin Joo, Evelina R. Loghin, Siavash Yazdanfar, Kenneth R. Conway
School of Nuclear Engineering Faculty Publications
Calculations indicate that selectively heating the extracellular media induces membrane temperature gradients that combine with electric fields and a temperature-induced reduction in the electro- permeabilization threshold to potentially facilitate exogenous molecular delivery. Experiments by a wide-field, pulsed femtosecond laser with peak power density far below typical single cell optical de- livery systems confirmed this hypothesis. Operating this laser in continuous wave mode at the same average power permeabilized many fewer cells, suggesting that bulk heating alone is insufficient and temperature gradients are crucial for permeabilization. This work suggests promising opportunities for a high throughput, low cost, contactless method for laser …
Strategies For The Production Of Cell Wall-Deconstructing Enzymes In Lignocellulosic Biomass And Their Utilization For Biofuel Production, Sang-Hyuck Park, Rebecca Garlock Ong, Mariam Sticklen
Strategies For The Production Of Cell Wall-Deconstructing Enzymes In Lignocellulosic Biomass And Their Utilization For Biofuel Production, Sang-Hyuck Park, Rebecca Garlock Ong, Mariam Sticklen
Department of Chemical Engineering Publications
Microbial cell wall-deconstructing enzymes are widely used in the food, wine, pulp and paper, textile, and detergent industries and will be heavily utilized by cellulosic biorefineries in the production of fuels and chemicals. Due to their ability to use freely available solar energy, genetically engineered bioenergy crops provide an attractive alternative to microbial bioreactors for the production of cell wall-deconstructing enzymes. This review article summarizes the efforts made within the last decade on the production of cell wall-deconstructing enzymes in planta for use in the deconstruction of lignocellulosic biomass. A number of strategies have been employed to increase enzyme yields …
Efficient Detection Of Zero-Day Android Malware Using Normalized Bernoulli Naive Bayes, Luiza Sayfullina, Emil Eirola, Dmitry Komashinsky, Paolo Palumbo, Yoan Miche, Amaury Lendasse, Juha Karhunen
Efficient Detection Of Zero-Day Android Malware Using Normalized Bernoulli Naive Bayes, Luiza Sayfullina, Emil Eirola, Dmitry Komashinsky, Paolo Palumbo, Yoan Miche, Amaury Lendasse, Juha Karhunen
Engineering Management and Systems Engineering Faculty Research & Creative Works
According to a Recent F-Secure Report, 97% of Mobile Malware is Designed for the Android Platform Which Has a Growing Number of Consumers. in Order to Protect Consumers from Downloading Malicious Applications, There Should Be an Effective System of Malware Classification that Can Detect Previously Unseen Viruses. in This Paper, We Present a Scalable and Highly Accurate Method for Malware Classification based on Features Extracted from Android Application Package (APK) Files. We Explored Several Techniques for Tackling Independence Assumptions in Naive Bayes and Proposed Normalized Bernoulli Naive Bayes Classifier that Resulted in an Improved Class Separation and Higher Accuracy. We …
Plasmonic Field Confinement For Separate Absorption-Multiplication In Ingaas Nanopillar Avalanche Photodiodes, Alan C. Farrell, Pradeep Senanayake, Chung-Hong Hung, George El-Howayek, Abhejit Rajagopal, Marc Currie, Majeed M. Hayat, Diana L. Huffaker
Plasmonic Field Confinement For Separate Absorption-Multiplication In Ingaas Nanopillar Avalanche Photodiodes, Alan C. Farrell, Pradeep Senanayake, Chung-Hong Hung, George El-Howayek, Abhejit Rajagopal, Marc Currie, Majeed M. Hayat, Diana L. Huffaker
Electrical and Computer Engineering Faculty Research and Publications
Avalanche photodiodes (APDs) are essential components in quantum key distribution systems and active imaging systems requiring both ultrafast response time to measure photon time of flight and high gain to detect low photon flux. The internal gain of an APD can improve system signal-to-noise ratio (SNR). Excess noise is typically kept low through the selection of material with intrinsically low excess noise, using separate-absorption-multiplication (SAM) heterostructures, or taking advantage of the dead-space effect using thin multiplication regions. In this work we demonstrate the first measurement of excess noise and gain-bandwidth product in III–V nanopillars exhibiting substantially lower excess noise factors …
North American Standard For Cold-Formed Steel Framing -- Nonstructural Members, 2015 Edition, American Iron And Steel Institute
North American Standard For Cold-Formed Steel Framing -- Nonstructural Members, 2015 Edition, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
North American Standard For Cold-Formed Steel Structural Framing, 2015 Edition, American Iron And Steel Institute
North American Standard For Cold-Formed Steel Structural Framing, 2015 Edition, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
North American Standard For Seismic Design Of Cold-Formed Steel Structural Systems, 2015 Edition With Supplement 1, American Iron And Steel Institute
North American Standard For Seismic Design Of Cold-Formed Steel Structural Systems, 2015 Edition With Supplement 1, American Iron And Steel Institute
American Iron and Steel Institute (AISI) Specifications, Standards, Manuals and Research Reports (1946 - present)
No abstract provided.
Effects Of A Beaver Pond In Southwestern Montana On Metals Concentration And Loads, William J. Drury, Martin Lorenzo
Effects Of A Beaver Pond In Southwestern Montana On Metals Concentration And Loads, William J. Drury, Martin Lorenzo
Environmental Engineering
A 400-m2 beaver pond on Cabbage Gulch (Deer Lodge County, MT) was investigated for its retention of total recoverable (TR) and dissolved arsenic (As), cadmium (Cd), copper (Cu), lead (Pb), zinc (Zn), and total suspended solids (TSS) during three storm water runoff events in the summer of 2013. Water samples were collected and flow rates were measured at monitoring stations above and below the pond. Decreases in TR metals concentrations were -17 percent for As (that is, As concentrations increased), 10 percent for Cu, 7 percent for Pb, and 27 percent for Zn. Total recoverable metals retained in the …
Swerve, Kaitlin A. Castillo, Cichasky A. Catherine
Swerve, Kaitlin A. Castillo, Cichasky A. Catherine
Industrial and Manufacturing Engineering
Carpooling yields great benefits environmentally, socially, and economically for carpooling, however there is no easy to use, safe, and enjoyable application for people to connect with others who are both close in proximity and have schedules that match currently. By creating a database and visual mock ups, our senior project creates the basis for an application called Swerve that matches users by location and schedules and has social and economic incentives. Our research allowed us to further understand the social, environmental and economic benefits and incentives of carpooling. We also looked into current carpooling websites and applications and could not …
The Information Of Spam, Sawyer C. Anderson
The Information Of Spam, Sawyer C. Anderson
Computer Science and Computer Engineering Undergraduate Honors Theses
This paper explores the value of information contained in spam tweets as it pertains to prediction accuracy. As a case study, tweets discussing Bitcoin were collected and used to predict the rise and fall of Bitcoin value. Precision of prediction both with and without spam tweets, as identified by a naive Bayesian spam filter, were measured. Results showed a minor increase in accuracy when spam tweets were included, indicating that spam messages likely contain information valuable for prediction of market fluctuations.
Startup Social Responsibility: A Concentrated Social Audit Of Halt Medical Inc., Matthew Frank Rosa
Startup Social Responsibility: A Concentrated Social Audit Of Halt Medical Inc., Matthew Frank Rosa
Industrial and Manufacturing Engineering
Halt Medical Inc. is a biomedical device startup whose managers are interested in assessing their levels of employee satisfaction and organizational well-being. They want to know if their employees are cooperating, if departments are cohesive, and if everyone is happy. To evaluate Halt Medical’s social capital and environment, a social responsibility audit will be conducted concentrated specifically on the organization’s social and ethical initiatives to its employees. This analysis requires interviews of managers, observations of cultural diffusion, and employee opinions on a variety of business areas. The five areas of focus for this audit are the company’s accommodation of each …
Multi-Restaurant Delivery Service Design And Financial Analysis, Dylan Davis Fuller
Multi-Restaurant Delivery Service Design And Financial Analysis, Dylan Davis Fuller
Industrial and Manufacturing Engineering
When found on campus all day and in need of a quick meal before the next class what are the options for you as a Cal Poly student or faculty? Campus dining is the only option that can meet the typical demand you have of speed and convenience. Restaurants with food delivery often don’t have the variety or take to long for delivery. The goal is to provide a delivery service with the speed of getting a meal on campus but with the variety and quality of the restaurants found in downtown San Luis Obispo. Looking at existing businesses providing …
Using Precision Agriculture Field Data To Evaluate Combine Harvesting Efficiency, Justin Carroll
Using Precision Agriculture Field Data To Evaluate Combine Harvesting Efficiency, Justin Carroll
Agricultural Education, Communications and Technology Undergraduate Honors Theses
Soybean crops must be harvested during a limited time period using expensive combines and associated equipment. Maximizing combine field efficiency, the ratio of the actual harvesting capacity to theoretical harvesting capacity, is an important objective of machinery managers. Spatial and temporal yield data from a 2012 CaseIH 8120 Axial-Flow combine equipped with a 30-foot MacDon D-65 Draper header and the Case-IH Advanced Farming System (AFS) yield monitoring system were used to examine field efficiency when harvesting soybean in three Arkansas Delta irrigated soybean fields during the 2015 season. Time efficiencies (TE) in the three fields ranged from 72.9 to 85.8% …
Eeg-Controlling Robotic Car And Alphabetic Display By Support Vector Machine For Aiding Amyotrophic Lateral Sclerosis Patients, Quang M. Le
Electrical Engineering Undergraduate Honors Theses
This thesis presents the design and experiment of a system that can detect the human thinking such as driving directions and letters using the brainwave signals known as electroencephalogram (EEG) and a machine learning algorithm called support vector machine (SVM). This research is motivated by amyotrophic lateral sclerosis (ALS) disease which makes patients seriously lose mobility and speaking capabilities. The developed system in this thesis has three main steps. First, wearing EPOC headset from Emotiv Company, a user can record the EEG signals when he/she is thinking a direction or a letter, and also save the data in a personal …
Estimating The Water Quality Condition Of River And Lake Water In The Midwestern United States From Its Spectral Characteristics, Jing Tan
Open Access Dissertations
This study focuses on developing/calibrating remote sensing algorithms for water quality retrieval in Midwestern rivers and lakes. In the first part of this study, the spectral measurements collected using a hand-held spectrometer as well as water quality observations for the Wabash River and its tributary the Tippecanoe River in Indiana were used to develop empirical models for the retrieval of chlorophyll (chl) and total suspended solids (TSS). A method for removing sky and sun glint from field spectra for turbid inland waters was developed and tested. Empirical models were then developed using a subset of the field measurements with the …
Improved Bias Correction Techniques For Hydrological Simulations Of Climate Change, David W. Pierce, Daniel R. Cayan, Edwin P. Maurer, John T. Abatzoglou, Katherine C. Hegewisch
Improved Bias Correction Techniques For Hydrological Simulations Of Climate Change, David W. Pierce, Daniel R. Cayan, Edwin P. Maurer, John T. Abatzoglou, Katherine C. Hegewisch
Civil, Environmental and Sustainable Engineering
Global climate model (GCM) output typically needs to be bias corrected before it can be used for climate change impact studies. Three existing bias correction methods, and a new one developed here, are applied to daily maximum temperature and precipitation from 21 GCMs to investigate how different methods alter the climate change signal of the GCM. The quantile mapping (QM) and cumulative distribution function transform (CDF-t) bias correction methods can significantly alter the GCM’s mean climate change signal, with differences of up to 2°C and 30% points for monthly mean temperature and precipitation, respectively. Equidistant quantile matching (EDCDFm) bias correction …
Fully Magnetic Printing By Generation Of Magnetic Droplets On Demand With A Coilgun, Vladislav Vekselman, Luke Sande, Konstantin G. Kornev
Fully Magnetic Printing By Generation Of Magnetic Droplets On Demand With A Coilgun, Vladislav Vekselman, Luke Sande, Konstantin G. Kornev
Publications
In this paper, we exhibit a coilgun-based approach to drop-on-demand printing of liquids laden with magnetic particles. In contrast to other drop-on-demand technologies designed to print droplets only in gaseous environments, this methodology allows one to print magnetic droplets inside any gaseous or liquid media using the same coilgun. Furthermore, we demonstrate the basic principles of magnetic drop-on-demand generation and show the physico-chemical parameters controlling the process.
Libsbolj 2.0: A Java Library To Support Sbol 2.0, Zhen Zhang, Tramy Nguyen, Nicholas Roehner, Goksel Misirli, Matthew Pocock, Ernst Oberortner, Meher Samineni, Zach Zundel, Jacob Beal, Kevin Clancy, Anil Wipat, Chris J. Myers
Libsbolj 2.0: A Java Library To Support Sbol 2.0, Zhen Zhang, Tramy Nguyen, Nicholas Roehner, Goksel Misirli, Matthew Pocock, Ernst Oberortner, Meher Samineni, Zach Zundel, Jacob Beal, Kevin Clancy, Anil Wipat, Chris J. Myers
Electrical and Computer Engineering Faculty Publications
The Synthetic Biology Open Language (SBOL) is an emerging data standard for representing synthetic biology designs. The goal of SBOL is to improve the reproducibility of these designs and their electronic exchange between researchers and/or genetic design