13 research outputs found
An inverse solution for winding stresses in wound coils of linear orthotropic material with large deformations
Potencja艂 hydroenergetyczny dolnej Wis艂y
This paper presents an estimate analysis of the hydropower potential of the lower Vistula River
from Warsaw to Gda艅sk Bay. The calculations were made for a hydraulic model of the lower
Vistula which takes into account potential development of barrages in a cascade system. Results
obtained from the model simulations and from hydrological calculations were used to estimate
the power of hydropower plants and the average annual energy output from the entire cascade
system. The results of calculations indicate significant energy benefits resulting from the development
of a cascade of hydropower plants in the lower Vistula. This study does not discuss the
cascade project鈥檚 economic viability or other aspects of its development (inland waterways, flood
control, etc.).W artykule przedstawiono szacunkow膮 analiz臋 potencja艂u hydroenergetycznego dolnej Wis艂y na odcinku od Warszawy do Zatoki
Gda艅skiej. Obliczenia wykonano, przyjmuj膮c model hydrauliczny dolnej Wis艂y, w kt贸rym uwzgl臋dniono potencjaln膮 zabudow臋
stopniami wodnymi pracuj膮cymi w uk艂adzie kaskady zwartej. Uzyskane wyniki symulacji z modelu wraz z przeprowadzonymi
obliczeniami hydrologicznymi pos艂u偶y艂y do oszacowania mocy elektrowni wodnych oraz 艣redniej rocznej produkcji energii ca艂ego
uk艂adu kaskady. Otrzymane wyniki oblicze艅 wskazuj膮 na znacz膮ce korzy艣ci energetyczne wynikaj膮ce z budowy kaskady elektrowni
wodnych na dolnej Wi艣le. W pracy nie podj臋to ekonomicznej kwestii op艂acalno艣ci wykonania analizowanej kaskady, jak r贸wnie偶
innych aspekt贸w istnienia kaskady (偶egluga 艣r贸dl膮dowa, ochrona przeciwpowodziowa i inne)
An inverse solution for winding stresses in wound coils of non-linear orthotropic material
Ceramics from the Firehole Basin Site and Firehole Phase in the Wyoming Basin
The Firehole Basin site (48SW1217), excavated in 1976 and 1977, is the type site for the Firehole phase proposed by Metcalf for the Wyoming Basin of central and western Wyoming. Given the dearth of excavated sites for the period from 700-300 B.P, and dated ceramics in Wyoming Basin in general, the Firehole Basin assemblage is an important indicator of material culture in this time period, but the artifacts have never been analyzed or reported in detail. Most researchers have characterized the Firehole Basin ceramics as Intermountain ware, but the ceramics have few affinities with this type, and this label should not be applied. Likewise, the Firehole Basin ceramics do not fit the definition of Boars Tusk Gray ware, a proposed southwest Wyoming type. The closest stylistic and technological affinities may be with Uncompahgre Brown ware or the recently proposed Waltman Brown ware