26,742 research outputs found
Oral history interview with Tim Green
No full textTim Green, a 1959 graduate of Oklahoma State University (OSU) majoring in business administration, recalls his high school days playing baseball and how he came to be on OSU's 1959 NCAA Baseball Championship team. He shares memories of teammates, traveling, practice facilities, and lessons learned from Coach Toby Greene. Green also talks about life as a student and meeting his future wife.The O-STATE Stories Oral History collection is comprised of interviews which chronicle the rich history, heritage, and traditions of Oklahoma State University
Children\u27s/Young Adult (YA) Author Event: Tim Green Author Visit
No full textThe Children’s/Young Adult Author Committee at Olivet Nazarene University received a $2500 Community Engagement Grant from the university. Because of this grant, the university hosted Tim Green, a former NFL football player who is now authoring books of primary interest to fourth through eighth graders. The success of this grant is difficult to measure, but in numbers, more than 3200 4th - 8th grade students and their teachers attended his speaking events during his two day visit. Green autographed more than 400 books for the attendees. Regarding reading motivation, area teachers have and still are reporting students, boys in particular, who in the past have never read a whole book, but when the teachers give them one of Tim Green’s books, they return and ask for more of his books to read. The Children’s/Young Adult Author Committee plans to continue bringing authors of quality literature to the community
Author and poet Lily Brett at the National Library of Australia, Canberra, 18 October 2012 /
No full textTitle from acquisitions documentation.; Part of the collection: Portraits of author and poet Lily Brett at the National Library of Australia, Canberra, 18 October 2012.; Acquired in digital format; access copy available online.; Mode of access: Online.; Photographed by a staff member of the National Library of Australia
Adrian Caesar speaking at Alex Miller author: A Celebration, held at the National Library, Canberra, 30 October 2011 /
No full textTitle from information supplied by photographer.; Part of the collection: Alex Miller author: A Celebration, held at the National Library of Australia theatre, 30 October 2011.; Mode of access: Online.; Photographed by a staff member of the National Library of Australia
David Hill speaking at the National Library of Australia, Canberra, 23 October 2012, 1 /
No full textTitle devised by cataloguer from information supplied by photographer.; Part of the collection: Author talk with David Hill at the National Library of Australia, Canberra, 23 October 2012; Acquired in digital format; access copy available online.; Mode of access: Online.; Photographed by a staff member of the National Library of Australia
David Hill speaking at the National Library of Australia, Canberra, 23 October 2012, 2 /
No full textTitle devised by cataloguer from information supplied by photographer.; Part of the collection: Author talk with David Hill at the National Library of Australia, Canberra, 23 October 2012; Acquired in digital format; access copy available online.; Mode of access: Online.; Photographed by a staff member of the National Library of Australia
Fault behaviour and fault detection in islanded inverter-only microgrids
No full textThe increase in popularity of the microgrid concept requires the analysis and solution of
the numerous technical issues arising from the operation and integration of the microgrid
into the original distribution network. The work presented in this thesis is centred on
the study of the fault behaviour of inverter-only microgrids and on the development of a
suitable fault detection technique.
This task is approached by first understanding the behaviour of a microgrid during a
fault and the factors affecting it. A complete description and analysis of the key elements
in the study of microgrid fault behaviour is presented. Then, three microgrid models with
different inverter control methods (i.e. Synchronous Reference Frame control, Natural
Reference Frame control and droop control) and with various current limiting strategies
are built in PSCAD and their fault behaviour is simulated, analyzed and compared.
It is found that the control of the inverter is able to shape the response of the
microgrid in the event of a fault. The constraints to this capability are the inverter’s ratings
(current and voltage limits) and the characteristic changes in the network introduced by
faults. Moreover, it is found that the control in the Natural Reference Frame gives better
fault response, in terms of voltage control and simplicity in implementation, compared
with the popular control in the Synchronous Reference Frame.
The behaviour of the system is then further analyzed by developing quasi steadystate
inverter models suitable for numerical fault analysis. The models are developed
starting from the inverter control and analyzing how it changes in the event of a fault. By
combining control gains and circuit parameters, they result in being capable of capturing
the key features of inverters’ fault behaviour. Depending on the control strategy, some of
these models are balanced and therefore are directly applicable in numerical fault analysis
based on sequence components. Others are unbalanced and therefore require a fault analysis
based on a direct phase coordinates representation of the network. Examples on how
to perform numerical fault analysis calculations with balanced and unbalanced models are
given and the numerical results well compare with the ones obtained from time-domain
simulations using PSCAD.
From the knowledge of the microgrid fault behaviour developed analyzing the responses
in time-domain simulations and by using the developed inverter models to numerically
calculate voltages and currents in the microgrid during different faults at various
locations, a fault detection strategy based on voltage sequence components is proposed.
Indeed, it is the behaviour of the inverter control during faults which makes the monitoring
of voltage sequence components the best discriminator between normal operation
and fault operation. The three building blocks of the fault detection strategy which are
capable of a fast extraction and comparison of voltage sequence components are described
and then the performance of the fault detection strategy for different faults and microgrid
operating conditions is tested in PSCAD and discussed. Finally, examples are given on
how this voltage detection can be used in the design of a microgrid protection system
The Potential Benefits of a Circular Economy in South Australia
No full textJodie Bricout and Tim Grant (Lifecycles, EconSearch, Colby Industries and the University of Queensland, for Green Industries SA
Examining green production and its role within the competitive strategy of manufacturers
No full textPurpose: This paper reviews current literature and contributes a set of findings that capture the current state-of-the-art of the topic of green production.
Design/methodology/approach: A literature review to capture, classify and summarize the main body of knowledge on green production and, translate this into a form that is readily accessible to researchers and practitioners in the more mainstream operations management community.
Findings: The existing knowledge base is somewhat fragmented. This is a relatively unexplored topic within mainstream operations management research and one which could provide rich opportunities for further exploration.
Originality/value: This paper sets out to review current literature, from a more conventional production operations perspective, and contributes a set of findings that capture the current state-of-the-art of this topic
<i>Keeping</i> it lean
No full text Practice website specialist Tim Green offers tips on creating a website for time-poor patients </jats:p
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