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Articles 1 - 19 of 19
Full-Text Articles in Engineering
Knee Joint Biomechanics In Transtibial Amputees In Gait, Cycling, And Elliptical Training, Greg Orekhov, A. Matt Robinson, Scott J. Hazelwood, Stephen M. Klisch
Knee Joint Biomechanics In Transtibial Amputees In Gait, Cycling, And Elliptical Training, Greg Orekhov, A. Matt Robinson, Scott J. Hazelwood, Stephen M. Klisch
Biomedical Engineering
Transtibial amputees may experience decreased quality of life due to increased risk of knee joint osteoarthritis (OA). No prior studies have compared knee joint biomechanics for the same group of transtibial amputees in gait, cycling, and elliptical training. Thus, the goal of this study was to identify preferred exercises for transtibial amputees in the context of reducing risk of knee OA. The hypotheses were: 1) knee biomechanics would differ due to participant status (amputee, control), exercise, and leg type (intact, residual) and 2) gait kinematic parameters would differ due to participant status and leg type. Ten unilateral transtibial amputee and …
Low Flow Testing, Daniel J. Howes
Low Flow Testing, Daniel J. Howes
BioResource and Agricultural Engineering
In arid environments, streamflow enhancement in low flow channels is common. It is challenging to assess enhancement project effectiveness in these channels because of uncertainties in metering (regarding both meters and procedures). The basic equation for flow is:
Q = VA (Eq. 1)
Where,
Q = channel flow rate (e.g., cubic feet per second, CFS)
V = cross sectional average velocity (e.g., feet per second, fps)
A = cross sectional area (e.g., square feet, ft2)
There are three main factors that impact flow measurement uncertainty in natural channels:
1. Flow meter velocity measurements (V)
2. Depth and area measurements (A) …
Assessing The Origin Of Noise In The Precipitation Gauge Geonor T-200b, Jonah B. Basl, Scott Landolt, Justin Lentz
Assessing The Origin Of Noise In The Precipitation Gauge Geonor T-200b, Jonah B. Basl, Scott Landolt, Justin Lentz
STAR Program Research Presentations
The Geonor T-200B is an all-weather precipitation gauge utilized by the Research Applications Laboratory (RAL) under the University Corporation for Atmospheric Research (UCAR) and the National Center for Atmospheric Research (NCAR). RAL has been dealing with a persistent issue of noise within the Geonor Devices during non-precipitation events. When there is not precipitation occurring, the data reading off the Geonor would be expected to be a constant value, as no precipitation is being collected. However, the device is producing unaccounted variation (noise) causing tremor like lines to appear in the data. The noise in the data is an issue for …
Dripline: A Distributed Experiment Control System, Eric Gonzalez, Ben Laroque, Noah Oblath
Dripline: A Distributed Experiment Control System, Eric Gonzalez, Ben Laroque, Noah Oblath
STAR Program Research Presentations
Project 8 is a nuclear physics experiment which seeks to measure the mass of neutrinos. The experiment requires the use of various pieces of hardware which need to be controlled, and from this need, a software system named Dripline is being developed. Because most researchers have some knowledge in Python and it is easier to understand the syntax of Python as opposed to C++, a Python application programming interface (API) is being created to allow any researcher working with Dripline ease of use. As development progresses, features may be added or removed as needed which requires constant testing, debugging, and …
Keeping Humans In The Loop: Pooling Knowledge Through Artificial Swarm Intelligence To Improve Business Decision Making, Lynn E. Metcalf, David A. Askay, Louis B. Rosenberg
Keeping Humans In The Loop: Pooling Knowledge Through Artificial Swarm Intelligence To Improve Business Decision Making, Lynn E. Metcalf, David A. Askay, Louis B. Rosenberg
Industrial Technology and Packaging
This article explores how a collaboration technology called Artificial Swarm Intelligence (ASI) addresses the limitations associated with group decision making, amplifies the intelligence of human groups, and facilitates better business decisions. It demonstrates of how ASI has been used by businesses to harness the diverse perspectives that individual participants bring to groups and to facilitate convergence upon decisions. It advances the understanding of how artificial intelligence (AI) can be used to enhance, rather than replace, teams as they collaborate to make business decisions.
Teaching Top-Down Approaches To The Engineering Design Process, Joshua E. Katz, Joshua E. Katz
Teaching Top-Down Approaches To The Engineering Design Process, Joshua E. Katz, Joshua E. Katz
STAR Program Research Presentations
One of the main focuses of metacognition is to have students think about their learning. By bringing the engineering design process with educational psychology together, it can lead to a society that thinks more in-depth on various topics. The goal of the internship was to utilize and teach top-down educational and instructional objectives. Throughout the project, we followed a modified progression of the System Architecture Methodology to help other interns think in a top-down fashion. The purpose of this procedure is to create and induce new innovative and creative ideas for different projects. As teaching this methodology was tasked, research …
Amplifying The Collective Intelligence Of Teams With Swarm Ai, David Askay, Lynn E. Metcalf, Louis B. Rosenberg, Gregg Willcox, David Baltaxe
Amplifying The Collective Intelligence Of Teams With Swarm Ai, David Askay, Lynn E. Metcalf, Louis B. Rosenberg, Gregg Willcox, David Baltaxe
Industrial Technology and Packaging
Group decision-making is strengthened by the varied knowledge and perspectives that each member brings, yet teams often fail to capitalize on their diversity. This paper describes how Swarm AI, a novel collaborative intelligence technology modeled on the decision-making process of honey bee swarms, enables networked human groups to more effectively leverage their combined insights. Through an empirical study conducted on 60 small teams, each of 3 to 6 members, we demonstrate the capacity of Swarm AI to significantly amplify the collective intelligence of human groups. A well-known testing instrument—the Reading the Mind in the Eyes (RME) test —was used to …
Variable Frequency Drive (Vfd) Specifications For Irrigation District Pumps, Charles M. Burt, Kyle Feist, Gary Wilson
Variable Frequency Drive (Vfd) Specifications For Irrigation District Pumps, Charles M. Burt, Kyle Feist, Gary Wilson
BioResource and Agricultural Engineering
This information was compiled by ITRC and includes specifications for standards, warranties, submittals, VFD size, and other technical details to aid districts in the selection and implementation of VFD system.
Variable Frequency Drive (Vfd) Specifications For On-Farm Pumps, Charles M. Burt, Kyle Feist, Gary Wilson
Variable Frequency Drive (Vfd) Specifications For On-Farm Pumps, Charles M. Burt, Kyle Feist, Gary Wilson
BioResource and Agricultural Engineering
This document applies to Variable Frequency Drive (VFD) system installations meeting all of the following criteria:
The project owner or authorized representative is applying to participate in the "PG&E Agricultural Pumping VFD Incentive Program," which involves a rebate for a complete VFD system, rather than components.
This project involves a VFD system designed to control the speed of a 60 Hz alternating current motor that is rated for:
- 480VAC or less
- 600 HP or less
- The VFD-controlled motor will be used specifically for pumping agricultural irrigation water into a pressurized irrigation system.
Quantifying Proliferative And Surface Marker Heterogeneity In Colony‐Founding Connective Tissue Progenitors And Their Progeny Using Time‐Lapse Microscopy, Edward Kwee, Gerald M. Saidel, Kimerly Powell, Christopher M. Heylman, Cynthia A. Boehm, George F. Muschler
Quantifying Proliferative And Surface Marker Heterogeneity In Colony‐Founding Connective Tissue Progenitors And Their Progeny Using Time‐Lapse Microscopy, Edward Kwee, Gerald M. Saidel, Kimerly Powell, Christopher M. Heylman, Cynthia A. Boehm, George F. Muschler
Biomedical Engineering
Connective tissue progenitors (CTPs) are defined as the heterogeneous population of tissue‐resident stem and progenitor cells that are capable of proliferating and differentiating into connective tissue phenotypes. The prevalence and variation in clonal progeny of CTPs can be characterized using a colony formation assay. However, colony assays do not directly assess the characteristics of the colony‐founding CTP. We performed large, field‐of‐view, time‐lapse microscopy to manually track colonies back to the founding cells. Image processing and analysis was used to characterize the colonies and their founding cells. We found that the traditional colony‐forming unit (CFU) assay underestimates the number of founding …
General: Irrigation Bill Of Consumer Rights, Charles M. Burt
General: Irrigation Bill Of Consumer Rights, Charles M. Burt
BioResource and Agricultural Engineering
Cal Poly ITRC, together with various irrigation industry leaders and the Irrigation Dealers Association of California, plus with assistance from the California Energy Commission and Pacific Gas & Electric Co., developed the Irrigation Consumer Bill of Rights (ICBR) in 1994.
Drip/Micro Irrigation: Irrigation Consumer Bill Of Rights, Charles M. Burt
Drip/Micro Irrigation: Irrigation Consumer Bill Of Rights, Charles M. Burt
BioResource and Agricultural Engineering
Cal Poly ITRC, together with various irrigation industry leaders and the Irrigation Dealers Association of California, plus with assistance from the California Energy Commission and Pacific Gas & Electric Co., developed the Irrigation Consumer Bill of Rights (ICBR) in 1994.
Soil And Plant Moisture Monitoring Systems: Irrigation Consumer Bill Of Rights, Charles M. Burt
Soil And Plant Moisture Monitoring Systems: Irrigation Consumer Bill Of Rights, Charles M. Burt
BioResource and Agricultural Engineering
Cal Poly ITRC, together with various irrigation industry leaders and the Irrigation Dealers Association of California, plus with assistance from the California Energy Commission and Pacific Gas & Electric Co., developed the Irrigation Consumer Bill of Rights (ICBR) in 1994.
Oiler For Vertical Pump Lineshaft Lubrication, Charles M. Burt
Oiler For Vertical Pump Lineshaft Lubrication, Charles M. Burt
BioResource and Agricultural Engineering
This document provides technical advice for controlling the dripping of oil for oil-lubricated vertical lineshaft pumps for irrigation.
Cichlid Size Vs Flow Rate, Amy E. Naumovski
Cichlid Size Vs Flow Rate, Amy E. Naumovski
STAR Program Research Presentations
Cichlids are a diverse group of fish that are known for their prenatal and postnatal care of their eggs and frys (baby fish). This unique characteristic creates a limitation on the amount of eggs a cichlid can lay and protect, which is particulalry effected by the size of the eggs. Cichlids have a large variance in their egg size, which correlates to a large variance in their fry size. This project explores the trade offs cichlids make in egg size and fry size by specifically testing the ability of varying sized cichlids to swim in different flow rates. This could …
Enhancing Group Social Perceptiveness Through A Swarm-Based Decision-Making Platform, David A. Askay, Lynn E. Metcalf, Louis Rosenberg, Gregg Willcox
Enhancing Group Social Perceptiveness Through A Swarm-Based Decision-Making Platform, David A. Askay, Lynn E. Metcalf, Louis Rosenberg, Gregg Willcox
Industrial Technology and Packaging
Swarm Intelligence is natural phenomenon that enables social animals to make group decisions in real-time systems. This process has been deeply studied in fish schools, bird flocks, and bee swarms, where collective intelligence has been observed to emerge. The present paper describes swarm.ai—a collaborative technology that enables swarms of humans to collectively converge upon a decision as a real-time system. Then we present the results of a study investigating if groups working as “human swarms” can amplify their social perceptiveness, a key predictor of collective intelligence. Results showed that groups reduced their social perceptiveness errors by more than half when …
Measuring Group Personality With Swarm Ai, Gregg Willcox, David Askay, Louis Rosenberg, Lynn Metcalf, Bryan Kwong, Richard Liu
Measuring Group Personality With Swarm Ai, Gregg Willcox, David Askay, Louis Rosenberg, Lynn Metcalf, Bryan Kwong, Richard Liu
Industrial Technology and Packaging
The aggregation of individual personality tests to predict team performance is widely accepted in management theory but has significant limitations: the isolated nature of individual personality surveys fails to capture much of the team dynamics that drive real-world team performance. Artificial Swarm Intelligence (ASI), a technology that enables networked teams to think together in real-time and answer questions as a unified system, promises a solution to these limitations by enabling teams to take personality tests together and converge upon answers that best represent the group’s disposition. In the present study, the group personality of 94 small teams was assessed by …
Conditioning Of Velocity Profiles In Pipelines, Charles M. Burt, Pascal Hellmann, Zachary Markow
Conditioning Of Velocity Profiles In Pipelines, Charles M. Burt, Pascal Hellmann, Zachary Markow
BioResource and Agricultural Engineering
This paper reports on the testing of a relatively simple flow conditioner for pipelines. This research found that a pipeline velocity flow conditioner that is constructed with an internal cone, having an inside diameter of 80 percent of the pipeline ID, provided the best results. It provided good velocity conditioning at a distance of two diameters downstream of an obstruction. The minor loss is equal to the velocity head of the flow in the original pipeline diameter.
Scada Preventative Maintenance: Reducing The Potential Of Unexpected Failures, Kyle Feist, Zachary Markow, Charles M. Burt
Scada Preventative Maintenance: Reducing The Potential Of Unexpected Failures, Kyle Feist, Zachary Markow, Charles M. Burt
BioResource and Agricultural Engineering
Irrigation district infrastructure utilizing Supervisory Control and Data Acquisition (SCADA) systems can perform a critical service to irrigators, but also present the risk of damage to nearby property and humans in certain failure scenarios. It is therefore prudent to minimize the scope, frequency, and duration of SCADA component failure. However, it is typical for irrigation districts to focus on corrective (post-failure) SCADA maintenance activities, instead of investing in preventive maintenance.
Preventive SCADA maintenance requires budget and labor investment. However, it is anticipated that it is possible to balance the effectiveness and expenses of a preventative maintenance program with some strategic …