Index Catalog // ScholarsArchive@OSU

A motor-generator and supercapacitor based system for microgrid frequency stabilization

Creator:: Crispo, Richard F.
Abstract:: This research introduces an energy storage system to deliver microgrid frequency response. A doubly-fed induction generator (DFIG) and a squirrel cage induction machine (SCIM) are coupled together as a motor/generator set to deliver an immediate inertial response to a change of frequency, and an inverter and supercapacitors deliver short term...
Resource Type:: Masters Thesis
Full Text:: Microgrid Frequency Stabilization AN ABSTRACT OF THE THESIS OF Richard F. Crispo

Exploration of Simultaneous Anammox and Denitrification (SAD) Biofilm Processes for Nitrogen Removal

Creator:: Hilliard, Richard F.
Abstract:: Anammox (anaerobic ammonium oxidation) bacteria are capable of providing low-cost nitrogen removal for numerous types of wastewaters. However, low growth rates cause long startup-times and inhibition by oxygen and metabolic substrates necessitate close process control to maintain performance. Incorporation of Simultaneous Anammox and Denitrification (SAD) into constructed wetlands could provide...
Resource Type:: Masters Thesis
Full Text:: Richard Hilliard for the degree of Master of Science in Environmental Engineering presented on October 11

Response of Conifer-Encroached Shrublands in the Great Basin to Prescribed Fire and Mechanical Treatments

Creator:: Miller, Richard F., Ratchford, Jaime, Roundy, Bruce A., Tausch, Robin J., Hulet, April, and Chambers, Jeanne
Abstract:: In response to the recent expansion of piñon and juniper woodlands into sagebrush-steppe communities in the northern Great Basin region, numerous conifer-removal projects have been implemented, primarily to release understory vegetation at sites having a wide range of environmental conditions. Responses to these treatments have varied from successful restoration of...
Resource Type:: Article
Full Text:: to Prescribed Fire and Mechanical Treatments Richard F. Miller,1 Jaime Ratchford,2 Bruce A. Roundy,3

Irrigation Frequency during Container Production Alters Rhododendron Growth, Nutrient Uptake, and Flowering after Transplanting into a Landscape

Creator:: Scagel, Carolyn F., Bi, Guihong, Bryla, David R., Fuchigami, Leslie H., and Regan, Richard P.
Abstract:: One deciduous cultivar of Rhododendron L., Gibraltar (AZ), and two evergreen cultivars, P.J.M. Compact (PJM) and English Roseum (ER), were grown in containers for 1 year to determine the effects of irrigation frequency during container production on plant performance the next spring when the plants were transplanted into the landscape....
Resource Type:: Article
Full Text:: Scagel, C. F., Bi, G., Bryla, D. R., Fuchigami, L. H., & Regan, R. P. (2014). Irrigation frequency

Effect of mid-rotation fertilization on stiffness and strength of loblolly pine wood

Creator:: Antony, Finto, Schimleck, Laurence R., Daniels, Richard F., and Clark, Alexander, III
Abstract:: Trees sampled from a loblolly pine mid-rotation fertilization trial were used in this study. The study was laid out in a randomized complete block design with four levels of nitrogen fertilizer as treatments: control (000N), 112 (112N), 224 (224N), and 336 (336N) kg/ha of nitrogen, with each treatment replicated in...
Resource Type:: Article
Full Text:: of loblolly pinE wood finto antony1,*, laurence r. schimleck2, richard f. daniels1 and alexander

Genetic variation in adaptive traits and seed transfer zones for Pseudoroegneria spicata (bluebunch wheatgrass) in the northwestern United States

Creator:: St. Clair, John Bradley, Kilkenny, Francis F., Johnson, Richard C., Shaw, Nancy L., and Weaver, George
Abstract:: A genecological approach was used to explore genetic variation in adaptive traits in Pseudoroegneria spicata, a key restoration grass, in the intermountain western United States. Common garden experiments were established at three contrasting sites with seedlings from two maternal parents from each of 114 populations along with five commercial releases...
Resource Type:: Article
Full Text:: (bluebunch wheatgrass) in the northwestern United States John Bradley St. Clair,1 Francis F. Kilkenny,1

Simulating Current Successional Trajectories in Sagebrush Ecosystems With Multiple Disturbances Using a State-and-Transition Modeling Framework

Creator:: Evers, Louisa B., Miller, Richard F., Doescher, Paul S., Hemstrom, Miles, and Neilson, Ronald P.
Abstract:: Disturbances and their interactions play major roles in sagebrush (Artemisia spp. L.) community dynamics. Although impacts of some disturbances, most notably fire, have been quantified at the landscape level, some have been ignored and rarely are interactions between disturbances evaluated. We developed conceptual state-and-transition models for each of two broad...
Resource Type:: Article
Full Text:: Modeling Framework Author(s): Louisa B. Evers , Richard F. Miller , Paul S. Doescher , Miles Hemstrom , and

Greater Sage-Grouse movements and habitat use during winter in central Oregon

Creator:: Bruce, Jennifer R., Robinson, W. Douglas, Petersen, Steven L., and Miller, Richard F.
Abstract:: Greater Sage-Grouse (Centrocercus urophasianus) depend on sagebrush habitat for food and cover during winter, yet few sage-grouse winter ecology studies have been conducted. During January and February 2007, we monitored 22 radio-collared sage-grouse (7 females and 15 males) in central Oregon to characterize winter habitat use and movement patterns. We...
Resource Type:: Article
Full Text:: , and Richard F. Miller3 ABSTRACT.—Greater Sage-Grouse (Centrocercus urophasianus) depend on sagebrush

Geodynamic Models of Melt Generation and Extraction at Mid-Ocean Ridges

Creator:: Gregg, Patricia M., Hebert, Laura B ., Montesi, Laurent G. J., and Katz, Richard F.
Abstract:: It is widely accepted that plate divergence at mid-ocean ridges drives mantle flow, mantle melting, and the formation of new oceanic crust. However, many of the details of this process remain obscure because of the inaccessibility of the mantle to direct observation. Thus, geodynamic models are needed to provide insight...
Resource Type:: Article
Full Text:: , Department of Geology, University of Maryland, College Park, MD, USA. Richard F. Katz is University

Effects of Irrigation Frequency and Nitrogen Fertilizer Rate on Water Stress, Nitrogen Uptake, and Plant Growth of Container-grown Rhododendron

Creator:: Scagel, Carolyn F., Bi, Guihong, Fuchigami, Leslie H., and Regan, Richard P.
Abstract:: The influence of irrigation frequency (same amount of water per day given at different times) and nitrogen (N) fertilizer rate on water stress [stomatal conductance (gs)], N uptake, and growth (biomass) of container-grown evergreen Rhododendron 'P.J.M. Compact' and 'English Roseum' and deciduous Rhododendron 'Gibraltar' was evaluated. Both N deficiency and...
Resource Type:: Article
Full Text:: Growth of Container-grown Rhododendron Carolyn F. Scagel1 U.S. Department of Agriculture, Agricultural

ScholarsArchive@OSU

A motor-generator and supercapacitor based system for microgrid frequency stabilization

Exploration of Simultaneous Anammox and Denitrification (SAD) Biofilm Processes for Nitrogen Removal

Response of Conifer-Encroached Shrublands in the Great Basin to Prescribed Fire and Mechanical Treatments

Irrigation Frequency during Container Production Alters Rhododendron Growth, Nutrient Uptake, and Flowering after Transplanting into a Landscape

Effect of mid-rotation fertilization on stiffness and strength of loblolly pine wood

Genetic variation in adaptive traits and seed transfer zones for Pseudoroegneria spicata (bluebunch wheatgrass) in the northwestern United States

Simulating Current Successional Trajectories in Sagebrush Ecosystems With Multiple Disturbances Using a State-and-Transition Modeling Framework

Greater Sage-Grouse movements and habitat use during winter in central Oregon

Geodynamic Models of Melt Generation and Extraction at Mid-Ocean Ridges

Effects of Irrigation Frequency and Nitrogen Fertilizer Rate on Water Stress, Nitrogen Uptake, and Plant Growth of Container-grown Rhododendron

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