38,636 research outputs found
G2 & G1 plants species of SW Colorado
No full textPresented at the 16th symposium held on September 27, 2019 in Grand Junction, Colorado.2019 G2 species of SW Colorado -- 2019 G1 species of SW Colorado
Midtown Blocks historic assessment
No full text250 pp. Bookmarks supplied by UO. Includes map and figures. Published September, 2004. Captured November 16, 2007.The study area for the Midtown Blocks Historic Assessment includes twenty-six blocks defined by the
half-block Park Blocks between SW Salmon to the south and W Burnside to the north, as well as those
blocks immediately adjacent west and east, from SW 10th to SW Broadway, respectively. The historic
research for the project covers each property in this study area. Donald R. Nelson, research consultant,
was hired by the City to provide historic information on the 74 individual properties. [From the document
Hymenophyllum polyanthos (Sw.) Sw.
No full textNicaragua, Matagalpa, Santa Maria de Ostuma Disparate de Potter. LAT (0) N; LONG (0) W. ALT (1600). Nicaragua. Epiphyte in forest. Montane rain forest - or cloud ìforest, Disparate de Potter, Sta. María de Ostuma, Cordillera ìCentral de Nicaragua, Department of Matagalpa, alt. 1600 m
Dependence of unsaturated chloride diffusion on the pore structure in cementitious materials
No full textConceptual analysis is performed to examine the effects of pore features on the water continuity in unsaturated porous systems. The roles of pore features in relative chloride diffusion coefficient (Drc) of mortar specimens at various degrees of water saturation (Sw) were studied based on mercury intrusion porosimetry and resistivity tests. It is found that the role of pore structure in the Drc-Sw relationship is a result of its effect on the water continuity. Porosity and tortuosity are not relevant to the Drc-Sw relationship. A finer pore size distribution or lower pore connectivity tends to result in a lower Drc. The pore size effect on the Drc is pronounced primarily at high Sw, while the Drc is dominated by the pore connectivity at low Sw. Cement mortar with a higher water-to-binder ratio shows larger chloride diffusion at high relative humidity levels but smaller chloride diffusion at low relative humidity levels.Accepted Author ManuscriptMaterials and Environmen
The electrical and interface properties of metal-ferroelectric (lanthanum substituted bismuth titanate: BLT)-insulator-semiconductor (MFIS) structures with various insulators
No full textWe have investigated metal-ferroelectric-insulator semiconductor (MFIS) structures with lanthanum substituted bismuth titanate (BLT) as a ferroelectric layer and lanthanum oxide (LO) or zirconium silicate (ZSO) as an insulating buffer layer between BLT and Si substrate. The morphology of BLT films deposited on LO or ZSO oxide was not changed due to the good thermal stability of LO and ZSO films. But an interface reaction between BLT and buffer layer started at high annealing temperature (750 degrees C), which was confirmed by transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDS). The maximum memory window was 3.59 V at a sweep voltage of 7 V with the LO film annealed at 650 degrees C and a thickness of 5 nm. With BLT/LO annealed at 750 degrees C, the window was decreased due to the reaction between the BLT film and LO. The memory window was about 1 V lower with a ZSO film because ZSO film has a lower dielectric constant than LO film. The MFIS structure annealed at 750 degrees C had a lower leakage current density because the electrical properties of the buffer layer (La oxide or Zr silicate) were improved by the thermal process.X113sciescopu
Evidence of extraordinary marine species in the SW Baltic Sea
No full textThe presence of an extended salinity gradient of the Baltic Sea reveals a variety of species occur at the limit of their physiological tolerance and preference, i.e. in areas and habitats not representing their marine or fresh water origin. Hence, the Baltic Sea is known for its high share of non-indigenous species, which have established. In this study, we compiled extraordinary sightings of transient, non-native or potentially range expanding species, such as jellyfish, squid, fishes and marine mammals in the SW Baltic Sea for a period from 2001 to 2018. We focused on jellyfish, squid, fishes and marine mammals. Hydrographic conditions, such as water temperature and salinity, obtained from a high spatio-temporally resolved hydrodynamic Baltic Sea model, covering a daily resolved 40-year time series were linked to the sightings of these extraordinary species. Our hydrodynamic modelling results demonstarted that changes in the occurrence of exceptional species reflect the dynamics of water mass exchange between the Kattegat/Skagerrak and the SW Baltic Sea. Our analyses show that these changes could be related to the presence of anomalously high saline water masses. This documents that the hydrographically highly dynamic SW Baltic Sea needs special attention for monitoring of non-indigenous species, as high saline and warm water intrusions are more frequent than currently believed and ii) can be linked to sightings of exceptional species in the SW Baltic Sea
Land Development Code Update, Ph. I & II
No full text1687 pp. Includes maps.Phase II of the Corvallis Land Development Code Update
The Corvallis Planning Commission has held four worksessions addressing items for update of the Land Development Code (LDC). The primary purpose of this effort is to develop interim protection regulations for wetlands and streams while more complete information is accumulated through the Natural Features Inventory (NFI) project. The State refers to these interim measures as "safe harbor" protection and they are to be used until the full State-mandated Planning Goal 5 process is completed. The full process will include the need to balance the protection of environmental features with the need to provide land for economic development and housing needs.
In addition to the interim wetland and stream protection standards currently being developed, several policies from the new Corvallis Stormwater Master Plan are being implemented. Incentives for removal of structures and impervious surface from within the 100-yr floodplain are being developed as are standards for stream shading.
Finally, work is being done to clarify processes for modifications to planned developments and to create the opportunity to modify conditional developments and subdivision tentative plats under specific circumstances.
For more information, contact Fred Towne, Senior Planner, at: 541-766-6908, e-mail.
Office Location: City Hall, Upper Level, 501 SW Madison Avenue
Mailing Address: City of Corvallis, Planning Division, P.O. Box 1083, Corvallis, OR 9733
South Portland circulation study : Report and recommendations
No full text68 pp. Bookmarks supplied by UO. Includes maps and figures. Published June, 2001. Captured November 6, 2007.The South Portland Circulation Study
recommendations provide a long-term vision
to guide transportation improvements that
will reconnect the Lair Hill neighborhood
and surrounding area....
The Planâ s primary objective is to separate
regional from local traffic by removing the
Ross Island Bridgehead ramps. This can be
acheived by streamlining the connection
between the Bridge and its connections to
the I-5 and the I-405 freeways as well as
changing the character of SW Naito Parkway
to fit better with the surrounding
neighborhood. [From the Plan]"Financed in part through a federal grant from the United States Department of Transportation
Federal Highway Administation, as a part of the Intermodal Surface Transportation Efficiency Act
and by the Oregon Department of Transportation and local funds.
OR 141 (SW Hall Boulevard) Americans with Disabilities Act ramp improvement project is complete!. Spanish
No full textThis archived document is maintained by the State Library of Oregon as part of the Oregon Documents Depository Program. It is for informational purposes and may not be suitable for legal purposes.Mode of access: Internet from the Oregon Government Publications Collection.Text in Spanish
The effect of He or Ar/O-2 plasma treatment on Si surface prior to chemical vapor deposition of SiO2
No full textThe effect of O-2 plasma pretreatment on the SiO2/Si interface property was studied using direct plasma varying the plasma power, He or Ar/O-2 ratio and the pretreatment time. The decrease of the pretreatment plasma power decreased the plasma damage and improved the interface property. The addition of He in O-2 glow discharge improved the electrical and the interface properties and there was an optimum He/O-2 ration. The improvement of the interface property by the Ar/O-2-plasma pretreatment was better than that by He/O-2, which is believed to be due to the lower oxidation rate of the Si surface. C-V analysis showed that the P-b center defect density was influenced by plasma pretreatment process parameters. To investigate the oxidation states near to and at the SiO2/Si interface, X-ray photoelectron spectroscopy depth analysis was used and the gas phase in the glow discharge was investigated using optical emission spectroscopy analysis at various experimental conditions. (C) 2004 Kluwer Academic Publishers.X116sciescopu
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