On the Calculation of Time Alignment Errors in Data Management Platforms for Distribution Grid Data

Autor: Hans-Peter Schwefel, Imad Antonios, Lester Lipsky

Publikováno v: Sensors, Vol 21, Iss 20, p 6903 (2021)

The operation and planning of distribution grids require the joint processing of measurements from different grid locations. Since measurement devices in low- and medium-voltage grids lack precise clock synchronization, it is important for data manag

Externí odkaz: https://doaj.org/article/484537136b254041a9b7a430f6a0ef13

Impact of time interval alignment on data quality in electricity grids

Autor: Hans-Peter Schwefel, Imad Antonios, Lester Lipsky

Publikováno v: Schwefel, H-P, Antonios, I & Lipsky, L 2018, Impact of time interval alignment on data quality in electricity grids . in 2018 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm) . IEEE, IEEE International Conference on Smart Grid Communications, Control and Computing Technologies for Smart Grids 2018 (SmartGridComm'18), Aalborg, Denmark, 29/10/2018 . https://doi.org/10.1109/SmartGridComm.2018.8587570
SmartGridComm
2018 IEEE International Conference on Communications, Control, and Computing Technologies for Smart Grids (SmartGridComm)

Measurements of parameters in electricitygrids are frequently average values over some time interval.In scenarios of distributed measurements such as indistribution grids, offsets of local clocks can result in theaveraging interval being misaligned.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a37beb7be9c280e078bb08c8feed92ab
https://vbn.aau.dk/da/publications/0e440149-758e-4ed2-a9ed-4e3c2b022ed2

AVAILABILITY VERSUS PERFORMANCE

Autor: Lester Lipsky, Pierre M. Fiorini

Publikováno v: International Journal of Computing. :98-105

We discuss analytic procedures for evaluating the availability of parallel computer systems comprised of P processors with N tasks subject to failures and repairs. In addition, we argue, via analytic and numeric examples, that not incorporating the t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1c03c6c5da434e3a910031c39998249
https://doi.org/10.47839/ijc.2.1.171

Linear algebraic methods in RESTART problems in Markovian systems

Autor: Lester Lipsky, Stephen Thompson, Søren Asmussen

Publikováno v: Thompson, S, Lipsky, L & Asmussen, S 2016, Linear algebraic methods in RESTART problems in Markovian systems . in L Fiondella & A Puliafito (eds), Principles of Performance and Reliability Modeling and Evaluation : Essays in Honor of Kishor Trivedi on his 70th Birthday . vol. Part 3, Springer, Springer Series in Reliability Engineering, pp. 449-479 . https://doi.org/10.1007/978-3-319-30599-8_17
Springer Series in Reliability Engineering ISBN: 9783319305974

A task with ideal execution time \(\ell \) is handled by a Markovian system with features similar to the ones in classical reliability. The Markov states are of two types, UP and DOWN, such that the task only can be processed in an UP state. Upon ent

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a1fd780c83de235ba2c3a306bf77b88
https://pure.au.dk/portal/da/publications/linear-algebraic-methods-in-restart-problems-in-markovian-systems(c6e97788-6099-418d-ab07-178adab32355).html

Search marketing traffic and performance models

Autor: Lester Lipsky, Pierre M. Fiorini

Publikováno v: Computer Standards & Interfaces. 34:517-526

Search Engine Marketing (SEM) is the practice of manipulating and/or paying the search engines (Google, Yahoo!, Bing, etc.) to drive traffic to websites. The SEM community has developed techniques that can channel visitors to websites; however, littl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a5d3487237abd25d15238fedbf685881
https://doi.org/10.1016/j.csi.2011.10.008