1,720,958 research outputs found
Hydropower Development alternatives at the Minnesota Falls Dam MN 00152
No full textThe Minnesota Falls Dam is located on the Minnesota R.iver near Granite Falls, Minnesota. The existing dam and 'powerhouse were originally cc;mstructed in 1905 by the Minnesota Valley Power Company. The ownership of the dam and powerhouse has been" transferred' and the current owner is
Northern States Power Company. The generation of electric power was discontinued and the powerhouse demolished in 1961. The purpose of this study is to estimate the cost of redeveloping the hydropower potential of the Minnesota Falls Dam, and the energy and power' that a hydropower facility would produce. The economic analysis required to determine project feasibility will be undertaken by the sponsor.NORTHERN STATES POWER COMPANY
Minneapolis, MinnesotaRindels, Alan J.; Gulliver, John S.; Garver, Rodrick J.. (1982). Hydropower Development alternatives at the Minnesota Falls Dam MN 00152. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/109962
Hydropower Feasibility At The Kettle River Dam MN00513
No full textThe Kettle River Dam is located on the Kettle River near Sandstone,
Minnesota. The existing dam and powerhouse were originally constructed
in 1908 by the Kettle River Power Company for power production. The
ownership of the dam and powerhouse has been transferred several times,
and the current owner is the State of Minnesota, Department of Natural
Resources, Parks and Recreation Division. The generation of electric
power was discontinued in 1963. The purpose of this study is to assess
the feasibility of redeveloping hydropower production facilities at the
Kettle River Dam.State Of Minnesota
Department Of Natural ResourcesGulliver, John S.; Knowlton, Robert J.; Garver, Rodrick J.. (1981). Hydropower Feasibility At The Kettle River Dam MN00513. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/117308
Intake and recycle modification model study Prarie Island nuclear generating plant
No full textThe thermal-hydraulic model study reported herein was conducted to study why a nonuniform temperature distribution in front of the screenhouse of the Prairie Island Nuclear Generating Plant occurs when warm water is recycled, and how the temperature distribution could be made uniform. The study was conducted for Northern States Power Company (NSP) in cooperation with Stone and Webster, Inc., Denver, Colorado.
When the original skimmer wall cooling water intake for the Prairie Island Plant was studied in a physical' model at the St. Anthony Falls Hydraulic Laboratory in 1971, it was already observed, that recycled warm water and incoming cold water would not fully mix. (See External Memorandum No. M-128, "Model Studies on Cooling Water Intake Channel of Prairie Island Nuclear Generating Plant," 1971.)NORTHERN STATES POWER COMPANY
Plant Engineering and Construction Department
Minneapolis, Minnesota
STONE & WEBSTER ENGINEERING COMPANY
Denver, ColoradoStefan, Heinz G.; Garver, Rodrick J.. (1984). Intake and recycle modification model study Prarie Island nuclear generating plant. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/112861
Hydropower Feasibility at the St. Cloud Dam
No full textThe Mississippi River Darn MN 00506 is located on the Mississippi
River in St. Cloud, Minnesota. Power generation at the original darn
was discontinued in 1967, at which time ownership was transferred from
Northern States Power to the City of St. Cloud and plans were made to
construct the present darn. The existing darn, completed in 1972, replaced
the original darn which was constructed in 1887. The existing powerhouse
and facilities were removed. The purpose of this study is to assess
the feasibility of redeveloping hydropower production facilities· at the
St. Cloud Darn.Knowlton, Robert J.; Garver, Rodrick J.; Gulliver, John S.; Renaud, Richard. (1981). Hydropower Feasibility at the St. Cloud Dam. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/109919
Preliminary Analysis Of Hydropower Production Feasibility At Twenty-One Existing Dam Sites In The State Of Minnesota
No full textA preliminary estimate of hydropower production feasibility was made
for twenty-one existing dam sites in the State of Minnesota. The purpose
of the preliminary analysis was to determine whether a comprehensive feasibility
study is justified for the site. The expected annual energy production
and initial project cost were estimated for each site. Initial cost
estimates include turbine, generator, transmission line, and other electromechanical
features as well as the civil features of hydropower retrofitting.
Initial cost does not include dam rehabilitation, since the required information
is not available for 19 of the 21 sites. The "relative cost" of the project
was defined as the initial cost divided by the annual energy production, and
was calculated for each site. The relative cost and general curves for payback
period were used to estimate hydropower feasibility at each site. The
results of the preliminary analysis are: 5 sites have good or very good
hydropower feasibility, 6 sites are marginal, and 10 sites have poor hydropower
feasibility. Estimates of the cost of a comprehensive feasibility
study are included for each site.Minnesota Energy Agency
State Of MinnesotaGulliver, John S.; Garver, Rodrick J.; Arndt, Roger E. A.; Bowers, C. Edward. (1980). Preliminary Analysis Of Hydropower Production Feasibility At Twenty-One Existing Dam Sites In The State Of Minnesota. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/117305
Jim Falls Hydropower Model Study
No full textThe Jim Falls hydroelectric power plant is located on the Chippewa River at the town of Jim Falls, Wisconsin. An aged 11 MW existing facility at the location is being replaced by a more efficient 48 MW peak power plant. The new design includes a much larger headwater pool which is to be formed by a new earth embankment (see Fig. 1.1). The new powerhouse is situated approximately 0.2 miles upstream of the existing facility. The project is being developed by Northern States Power Company (NSP), Wisconsin, in conjunction with NSP, Minnesota. Project design is being undertaken by B1ack & Veatch, headquartered in Kansas City, Missouri; Mead and Hunt headquartered in Madison, Wisconsin; and Motor Columbus, headquartered in Baden, Switzerland.
Hydraulic model studies were conducted at the St. Anthony Falls Hydraulic Laboratory, University of Minnesota. The purpose of these experiments was to evaluate and test various design alternatives for major hydraulic structures of the project. This report summarizes and documents that activity. A videotape (27 min.) supplements this report and shows
actual flow conditions in the 1:60 scale model.
The Jim Falls Hydro Redevelopment Project includes a two unit powerhouse, new headwater pool with pilot channel, tailrace channel and an auxiliary spillway next· to the powerhouse. This new spillway has three
tainter gates topped with flaps for debris sluicing. The auxiliary spillway design flow is 65,000 cfs. The proposed headwater. pool will include a portion of the existing diversion canal (Fig. 1-1) and. will extend into the Chippewa River below the existing bridge.NORTHERN STATES POWER COMPANY
Minneapolis, Minnesota
BLACK AND VEATCH
Kansas City, MissouriStefan, Heinz G.; Lindblom, Karen L.C.; Voigt, Richard L. Jr.; Garver, Rodrick J.. (1985). Jim Falls Hydropower Model Study. Retrieved from the University Digital Conservancy, https://hdl.handle.net/11299/113310
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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