Search

Your search keyword '"Thiele, Mark"' showing total 44 results
Start Over Author "Thiele, Mark"
44 results on '"Thiele, Mark"'

1. Revisiting the Arguments for Edge Computing Research

Author

Varghese, Blesson, de Lara, Eyal, Ding, Aaron, Hong, Cheol-Ho, Bonomi, Flavio, Dustdar, Schahram, Harvey, Paul, Hewkin, Peter, Shi, Weisong, Thiele, Mark, and Willis, Peter

Subjects
Computer Science - Distributed, Parallel, and Cluster Computing
Abstract

This article argues that low latency, high bandwidth, device proliferation, sustainable digital infrastructure, and data privacy and sovereignty continue to motivate the need for edge computing research even though its initial concepts were formulated more than a decade ago.

Published
2021

4. Scaling and energy transfer in rotating turbulence

Author

Mueller, Wolf-Christian and Thiele, Mark

Subjects
Physics - Fluid Dynamics
Abstract

The inertial-range properties of quasi-stationary hydrodynamic turbulence under solid-body rotation are studied via high-resolution direct numerical simulations. For strong rotation the nonlinear energy cascade exhibits depletion and a pronounced anisotropy with the energy flux proceeding mainly perpendicularly to the rotation axis. This corresponds to a transition towards a quasi-two-dimensional flow similar to a linear Taylor-Proudman state. In contrast to the energy spectrum along the rotation axis which does not scale self-similarly, the perpendicular spectrum displays an inertial range with $k^{-2}_\perp$-behavior. A new phenomenology gives a rationale for the observations. The scaling exponents $\zeta_p$ of structure functions up to order $p=8$ measured perpendicular to the rotation axis indicate reduced intermittency with increasing rotation rate. The proposed phenomenology is consistent with the inferred asymptotic non-intermittent behavior $\zeta_p=p/2$., Comment: to be published in Europhysics Letters (www.epletters.net), minor changes to match version in print

Published
2006
Full Text
View/download PDF

5. Cable Sizing Flowchart–A Tool to Help Reinforce the State of Electrical Engineering Workforce

Author

Shenoy, Atul Arunkumar, Miller, Carles, and Thiele, Mark

Abstract

In the last decade, maybe longer, the oil, gas and chemical (OGC) industry has seen a decline in the electric power engineering ranks and knowledge base. With the advent of the pandemic and the great resignation that followed, the industry has seen an acceleration of this knowledge drain. As experienced workers retire, knowledge around engineering and design of electrical systems and the application of various products is leaving with them, and hence engineers are being tasked with doing more sooner. Many universities have shifted the focus of their curriculums to cater to the field of high tech, leaving only a handful of institutions with strong programs in electric power engineering and subfields such as electric machines, power electronics, and power systems. Addressing skill gaps has become a point of discussion from break rooms to board rooms. One clear example is the sizing of Medium and Low Voltage power cables, which are critical to the supply of electric power in all industries. Selecting and sizing cables can have a material impact on the overall reliability, safety, and CAPEX cost of a project. This article discusses a cable sizing flowchart tool as a means to mitigate the knowledge drain caused by engineers retiring and resigning in the OGC industry. The tool brings relevant knowledge that resides in the National Electrical Code (NEC) around cables and selecting the right size of cable using the Low Voltage Cable Sizing Flowchart in Appendix A, based on 2023 NEC. The goal of the paper is to provide a handy reference cable sizing guide for the early career professional who is asked to make cable selections and to serve as a springboard for further reference depending on the specific application that the engineer might be tasked with.

Published
2024
Full Text
View/download PDF

10. Revisiting the Arguments for Edge Computing Research

Author

Varghese, Blesson, primary, de Lara, Eyal, additional, Ding, Aaron Yi, additional, Hong, Cheol-Ho, additional, Bonomi, Flavio, additional, Dustdar, Schahram, additional, Harvey, Paul, additional, Hewkin, Peter, additional, Shi, Weisong, additional, Thiele, Mark, additional, and Willis, Peter, additional

Published
2021
Full Text
View/download PDF

14. Glue, stitch, cobble: Weighing DIY container management

Author

Thiele, Mark

Subjects
Cloud computing -- Methods, Software engineering -- Methods, Information technology management -- Methods, Software development/engineering, Computers and office automation industries
Abstract

Byline: Mark Thiele You've been tasked with helping your company stay competitive by modernizing your IT organization's delivery of developed applications. Your company has already embraced virtualization and perhaps dabbled [...]

Published
2016

15. Direct control of Wind Parks by a Transmission System Operator.

Author

Orlishausen, Michael, Thiele, Mark, Birkelbach, Julia, Kleiny, Nico, Fockeny, Ulrick, Forchez, Henning, Schüttx, Jonathan, Pankrazx, Vitalij, Liebehentzex, Sven, Frech, Michael, and Großer, Hauke

Subjects
OFFSHORE wind power plants, RENEWABLE energy sources, INDEPENDENT system operators, ELECTRIC power transmission management
Abstract

In Germany, the combined installed power of Offshore and Onshore wind energy generation has surpassed 60 GW. More than 50% of this capacity is located in the control area of the German Transmission System Operator (TSO) TenneT TSO GmbH (TenneT). Wind energy plants are usually connected to the high-voltage grid and therefore primarily controlled by Distribution System Operators (DSOs) or direct marketers. As a result contingencies located in the extra-high voltage (EHV) grid or its connection to the lower voltage grid need to be resolved by cooperation between the grid operators involved. Currently, the coordination required for the implemented cascaded process takes several minutes. Especially in an emergency state, such a task could e.g. be accelerated by establishing a direct control mechanism for TSOs in addition to the coordination with the DSO. By that, contingencies can be dealt with on a shorter timescale. As part of the funding program 'Smart Energy Showcases (SINTEG)', TenneT initiated a collaboration in the showcase region of 'NEW4.0' in Northern Germany. Together with direct marketers ANE GmbH & Co. KG, Statkraft Markets GmbH, virtual power plant service providers ARGE Netz GmbH & Co. KG, Energy & Meteo Systems GmbH as well as Fraunhofer Institute for Energy Economics and Energy System Technology (Fraunhofer IEE), several wind parks, were connected to the TenneT control room in different subprojects using different interfaces in order to compare both approaches. As part of different field tests those wind parks were curtailed and the resulting effect on the power flow from high voltage to EHV grid was measured directly at the transformers in the vicinity. This allowed the estimation of the potential influence of a control mechanism. While positive results were achieved and the effect of single wind parks could be measured without further knowledge of the medium voltage grid model, a clear conclusion is yet to be made. A permanent implementation usecase heavily depends on the outcome of the redispatch process being remodeled in the light of new legislation in Germany ('Redispatch 2.0'), as the possible synergies with measures of the alert state using the upcoming interfaces are yet to be determined. [ABSTRACT FROM AUTHOR]

Published
2020

18. Roundtable on Cloud, Fog, Networks and Related Technologies

Author

Weinman, Joe, primary, Dawson, Margaret, additional, Fagan, Jim, additional, Ho, Stephen, additional, Horan, Tim, additional, Hughes, Will, additional, I, Chih-Lin, additional, Ivanov, Ivo, additional, King, Jonathan, additional, Klinker, Eric, additional, Kompella, Kireeti, additional, Lee, Simon, additional, Servatius, Ryan, additional, and Thiele, Mark, additional

Published
2017
Full Text
View/download PDF

23. Analysis of cogging torque due to manufacturing variations in fractional pitch permanent magnet synchronous machines

Author

Thiele, Mark

Abstract

Fractional pitch slot / pole arrangements are commonly used in permanent magnet synchronous motors (PMSMs) to significantly reduce cogging torque, however, maximum benefit depends on accurate stator and rotor manufacturing and alignment. This thesis presents a method of identifying the sources of manufacturing induced cogging torque. Decoupling of cogging caused by stator and rotor manufacturing variation is possible due to stator and rotor affected harmonics being independent of one another. A hybrid FEA / analytical method was developed to simulate cogging torque with multiple manufacturing faults induced which proved to be 6 orders of magnitude faster than FEA alone. The new method utilises a library of FEA derived pole transition over single stator slot waveforms which are then assembled in the correct order and phased corresponding to the slot / pole interactions for a given PMSM. Angular and eccentric misalignment can be identified by investigating the presence of first and second order sidebands about the pole and slot harmonics. Static angular misalignment induces first order sidebands around the slot harmonics while dynamic angular misalignment induces sidebands about the pole harmonics. Static eccentricity induces both first and second order sidebands around the slot harmonics, while dynamic eccentricity has the same effect on the pole harmonics. A ‘Fault Diagnosis Flow Chart’ is presented to identify the manufacturing sources of additional harmonics. To demonstrate the effectiveness of the proposed method, all combinations of 10 production stators and 10 rotors of 24 slots and 10 poles in an axial flux configuration were experimentally measured and analysed. The stator slot variation and pole misplacement were found to be the largest contributors to unexpected cogging torque. Pole strength variation and static angular misalignment had minor contributions while dynamic angular, static eccentricity and dynamic eccentricity were found to not have a significant impact on the motors tested.

Published
2013
Full Text
View/download PDF

30. Heard on the Internet

Author

Thiele, Mark

Subjects
Hewlett-Packard Co. -- Information management -- Laws, regulations and rules, Energy tax credits -- Laws, regulations and rules, Consulting services -- Industry forecasts -- Laws, regulations and rules, Computer industry -- Information management -- Industry forecasts, Government regulation, Company systems management, Microcomputer industry, Computer industry, Computers
Abstract

March 21st @mythiele10 By Mark Thiele As if baidu's stock increase since the google departure wasn't enough, now China is messing with gmail; http://on.wsj.com/ffyyc7 March 18, 2011 6:45:57 AM EDT [...]

Published
2011

36. Original Research in the Classroom: Why Do Zebrafish Spawn in the Morning?

Author

Liang, Jennifer. O., primary, Abata, Katie, additional, Bachelder, Eric, additional, Bartley, Becca, additional, Bozadjieva, Nadejda, additional, Caskey, Victoria, additional, Christianson, Benjamin, additional, Detienne, Shannon, additional, Dillon, Cassandra, additional, Ecklund, Derek, additional, Eckwright, David, additional, Erickson, Raymond, additional, Fadness, Tyler, additional, Fealey, Michael, additional, Fetter, Nicholas, additional, Flatten, Michael, additional, Fulton, Joshua, additional, Galloway, Ryan, additional, Gauer, Jacob, additional, Hagler, Michael, additional, Hammer, Andrea, additional, Hasbargen, David, additional, Heckmann, Brandon, additional, Hildebrandt, Anne, additional, Hillesheim, Jaclyn, additional, Hoffman, Meghan, additional, Hovey, Jonathan, additional, Iverson, Sonja, additional, Joyal, Matthew, additional, Jubran, Rami, additional, Keller, Stephanie, additional, Kent, Derek, additional, Kiefer, Brendan, additional, King, Jacob, additional, Kuefler, Aaron, additional, Larson, Alex, additional, Lewis, Nathan, additional, Lu, Po-nien, additional, Malone, Jessica, additional, Mickolichek, Chelsey, additional, Mitchell, Sean, additional, Nelson, Pamela, additional, Nemec, Michelle, additional, Olsen, Shayna, additional, Olson, Kendelle, additional, Pautz, Kelsey, additional, Pieper, Kelsey, additional, Remackel, Michelle, additional, Rengo, Cody, additional, Sekenski, Jaime, additional, Sievers, Tyson, additional, Slavik, Brittney, additional, Sloan, Jami, additional, Smrekar, Candice, additional, Stromquist, Emily, additional, Tandberg, Patrick, additional, Taurinskas, Nicholas, additional, Thiele, Mark, additional, Timinski, Peter, additional, Tusa, Barite, additional, Tuthill, Andrew, additional, Uher, Bradley, additional, Ward, Amy, additional, Wilson, Luke, additional, and Young, Nathan, additional

Published
2011
Full Text
View/download PDF

43. Three Simple Steps to Better Practicing.

Author

Thiele, Mark

Subjects
TUBISTS, PRACTICING (Music performance), MUSIC students, LISTENING skills, MUSIC rehearsals
Abstract

The article discusses three simple steps that tuba or euphonium players should put in mind to improve their practice sessions. Topics mentioned include the importance of listening to music, the concept of The Big Three technique, and holding the mouthpiece for students and have them buzz into it as a form of exercise for students to deal with pressure.

Published
2014

44. MANY PATHS, ONE DESTINATION--New Directions and Opportunities for Ending Homelessness: Part One of a Two-Part Series.

Author

BAKER, LISA A., ELLIOTT, JILL, WILLIAMS MITCHELL, JULIE, and THIELE, MARK

Subjects
*HOUSING authorities, *HOMELESSNESS, *PUBLIC housing, *PUBLIC housing planning & development, *HOUSING policy
Abstract

The article presents a discussion of the public housing authority (PHA) collaborations in the U.S. under the Housing First model, adapted from a white paper from the Homelessness Task Force of the Community Revitalization and Development (CR&D) Committee. Topics discussed include the factors that can lead to homelessness in the U.S., the steps taken by the U.S. government to battle homelessness and the role of public housing authorities (PHA) in addressing the issue of homelessness.

Published
2016

Catalog

Books, media, physical & digital resources
See catalog results