Physical Sciences and Mathematics Commons^™

Utah Off-Highway Vehicle Laws And Rules, Utah Dnr State Parks

All U.S. Government Documents (Utah Regional Depository)

Utah Off-Highway Vehicle Laws and Rules taken from The Utah Off-Highway Vehicle Act and The Utah Board of Parks and Recreation Rules Title 41, Chapter 22, Utah Code Annotated 1953. NOTICE: Though the following laws and rules were screened for accuracy prior to publication, errors may still exist. In addition, changes in law and rule may be made at any time. Readers are encouraged to contact the Utah Division of Parks and Recreation for clarification of any law or rule contained herein.

Factors Influencing Epiphytic Lichen Communities In Aspen-Associated Forests Of The Bear River Range, Idaho And Utah, Paul C. Rogers

All U.S. Government Documents (Utah Regional Depository)

In western North America, quaking aspen (Populus tremuloides Michx.) is the most common hardwood in montane landscapes. Fire suppression, grazing, wildlife management practices, and climate patterns of the past century are some of the threats to aspen coverage in this region. Researchers are concerned that aspen-dependent species may be losing habitat, thereby threatening their long-term local and regional viability. Though lichens have a rich history as air pollution indicators, I believe that they may also be useful as a metric of community diversity associated with habitat change. To date, few studies have specifically examined the status of aspen’s epiphytic lichen …

Reactivation Pathway Of The Hydrogenase H-Cluster: Density Functional Theory Study, Stefan Motiu, Daniela Dogaru, Valentin Gogonea

Chemistry Faculty Publications

This work puts forth a reaction pathway for the reactivation of exogenous ligand inhibited H-cluster, the active site of Fe-only hydrogenases. The H-cluster is a dimetal complex, Fe–Fe, with the metal centers bridged by di(thiomethyl)amine. Exogenous ligands, H2O, and OH−, are bound to the distal iron (Fed). Density functional theory (DFT) calculations on the native and ruthenium-modified H-cluster have been performed using the B3LYP functional with 6-31+G** and 6-311+G** basis sets. We have ascertained that there is a thermodynamically favorable pathway for the reactivation of the OH− inhibited H-cluster, which proceeds by an initial protonation of the Fed–OH− complex. The …

Observational Analysis Of The 27 May 1997 Central Texas Tornadic Event. Part I: Prestorm Environment And Storm Maintenance/Propagation, Adam L. Houston, Robert B. Wilhelmson

Department of Earth and Atmospheric Sciences: Faculty Publications

A detailed analysis of the 27 May 1997 central Texas tornadic storm complex is undertaken in an attempt to document the prestorm environment and identify the roles played by preexisting boundaries on storm maintenance/propagation and rotation. Analysis is carried out using a broad suite of synoptic and subsynoptic data but focuses on the level-II and -III Weather Surveillance Radar-1988 Doppler (WSR-88D) data from three Texas radars. The 27 May 1997 event was characterized by a back-building (propagation against the mean flow) storm complex that produced at least 12 tornadoes including the F5 Jarrell, Texas, tornado. Furthermore, five of the eight …

Hydromination Of Alkynes, Enynes, And Dienes Using Titanium Catalysts, Taryn Palluccio

Undergraduate Review

No abstract provided.

Study Of Soliton Stabilization In D+1 Dimensions Using Novel Analytical And Numerical Techniques, George Nehmetallah, Partha P. Banerjee

Electrical and Computer Engineering Faculty Publications

In this Chapter, we provide a brief review of the underlying nonlinear Schrödinger and associated equations that model spatio-temporal propagation in one and higher dimensions in a nonlinear dispersive environment. Particular attention is given to fast adaptive numerical techniques to solve such equations, and in the presence of dispersion and nonlinearity management, saturating nonlinearity and nonparaxiality. A unique variational approach is also outlined which helps in determining the ranges of nonlinearity and dispersion parameters to ensure stable solutions of the nonlinear equations. The propagation of 3+1 dimensional spatio-temporal pulses, or optical bullets is also modeled using a fast adaptive split-step …

A Note On Relations For Reliability Measures In Zero-Adjusted Models, Broderick O. Oluyede, Mavis Pararai

Department of Mathematical Sciences Faculty Publications

In this note we examine and study relations in zero-adjusted models. Relations for reliability measures in the adjusted and unadjusted models are established and appropriate comparisons including the relative error are presented. The relative error is shown to be a decreasing function of the counts. Some inequalities and comparisons for weighted zero-adjusted models are established.

There's A Hole In My Umbrella: A Mini-Unit On Acid Deposition, Storm Project

Open Educational Resources

Objective: Students will gain an understanding of acid deposit ion and the environmental impact it has both nationally and globally. National Science Standards: As a result of these activities, students in grades 9-12, will

• develop skills in scientific inquiry (standard A).
• observe changes in properties of matter (standard B).
• gain an understanding of environmental quality related to both natural and human-induced hazards (standard F).
• understand that science is a global challenge (standard F).
• evaluate results of scientific experiments and observations (standard F).

Reading Universal Time, Storm Project

Open Educational Resources

National Science Education Standards: As a result of activities in grades 5-8, all students should develop an understanding about science and technology, and science and technology in society.

Reading And Using Meteograms, Storm Project

Open Educational Resources

Objectives:Students learn how hourly weather data is plotted on a meteogram, and how to interpret the data. They will relate meteogram data to surface weather maps.

National Science Education Standards: As a result of activities in grades 5-8, all students should develop an understanding of: abilities necessary to do scientific inquiry, properties and changes of properties in matter, understandings about science and technology, and structure of the earth system.

As a result of their activities in grades 9-12, all students should develop an understanding of Energy in the earth System: The sun is the major external source of energy; Heating …

Upper Air Plots, Storm Project

Open Educational Resources

Objectives: Students will study air patterns at three different levels of the troposphere.

National Science Education Standards: As a result of activities in grades 5-8, all students should develop an understanding of: abilities necessary to do scientific inquiry, properties and changes of properties in matter, understandings about science and technology, and structure of the earth system.

Is Air Quality In The Index?, Storm Project

Open Educational Resources

Objectives:

• Make predictions and explanations based from evidence.
• Identify sources of air pollution that affect air quality.
• Interpret and apply the Air Quality Index.
• Have the desire to share Air Quality information with others.

5-8 NSES Standards:

• Standard A: Inquiry •Standard D: Structure of Earth Systems
•Standard E: Science and Technology
•Standard F: Personal Health, Population, Resources, Environmental and Natural Hazards, Risks and Benefits, Science and Technology in Society

9-12 NSES Standards:

• Standard A: Inquiry
• Standard D: Geochemical Cycles, Origin and Evoluti
on of the Earth System
• Standard E: Science and Technology …

Factories - Friends Or Foes?, Storm Project

Open Educational Resources

Objective: Students will be able to role play various points of view considering placement of a factory and its effects on air quality.

National Science Education Standards:

Standard E - Understandings about science and technology

Standard F -

• Personal health
• Populations, resources, and environments
• Natural hazards
• Risks and benefits
• Science and technology in society

Standard G - Science as a human endeavor

There's A Whole Lotta Spillin' Goin' On!, Storm Project

Open Educational Resources

Unit Learning Objectives: The learner should be able to:

1. Compare and contrast hazardous chemical spills
2. Comprehend how hazardous chemicals affect the environment.
3. Explain the difficulty involved in cleaning up a
hazardous spill.
4. Explain how the chemical travels once it is released.
5. Assess how hazardous chemicals affect the human body and animal life.
6. Analyze a chemical spill and its affects on its
surroundings.
7. Create an emergency management system based on a real life situation

Evidence of Understanding: By the end of this unit, students should be able to demonstrate a clear understanding of hazardous …

The Economic Impact Of The Arts And Culture (Ace) As Economic Development Grant Program On The Greater Cleveland Regional Economy, Center For Public Management, Jacob Duritsky

All Maxine Goodman Levin School of Urban Affairs Publications

This report describes the results of a REMI simulation conducted to measure the economic impact of the Cuyahoga County Arts and Culture as Economic Development (ACE) Grants. The results suggest that the grants have likely contributed to an increase in economic activity in Cuyahoga County.

An Examination Of The Quality Of Supply And Demand Issues Of Northeast Ohio’S Information And Communications Technology Workforce (Phase Ii), Claudette Robey, Daila Shimek, Michael Mcgoun

All Maxine Goodman Levin School of Urban Affairs Publications

This report describes results from research conducted by the Center for Public Management (PM)of the Maxine Goodman Levin College of Urban Affairs at Cleveland State University to gain an understanding of the relationship between the supply and demand sides of Northeast Ohio’s Information, Communications, and Technology (ICT) market, and how supply and demand communicate to provide the skilled ICT workers needed by ICT-related employers. Further, the intent of the Phase II research was to gain an understanding of how post-secondary education institutions link to the ICT employers as providers of students to meet market demand.

Brief Description And Analysis Of The Census Bureau's 2006 Population Estimates For Incorporated Places For Cleveland And Other Ohio Cities, Mark Salling

All Maxine Goodman Levin School of Urban Affairs Publications

No abstract provided.

An Analysis Of Services Provided By Faith-Based Organizations To Cleveland’S Ward 17 Community, Mark Salling

All Maxine Goodman Levin School of Urban Affairs Publications

No abstract provided.

Exploring Energy Alternatives, Augustana College - Sioux Falls

Conservation/Energy Alternatives

Bibliography and photographs of a display of government documents from Augustana College, South Dakota.

Excess Silica In Omphacite And The Formation Of Free Silica In Eclogite, H. W. Day, Sean R. Mulcahy

Geology Faculty Publications

Silica lamellae in eclogitic clinopyroxene are widely interpreted as evidence of exsolution during decompression of eclogite. However, mechanisms other than exsolution might produce free silica, and the possible mechanisms depend in part on the nature and definition of excess silica. ‘Excess’ silica may occur in both stoichiometric and non-stoichiometric pyroxene. Although the issue has been debated, we show that all common definitions of excess silica in non-stoichiometric clinopyroxene are internally consistent, interchangeable, and therefore equivalent. The excess silica content of pyroxene is easily illustrated in a three-component, condensed composition space and may be plotted directly from a structural formula unit …

Precursory Seismicity Associated With Frequent, Large Ice Avalanches On Iliamna Volcano, Alaska, Usa, Jacqueline Caplan-Auerbach, Christian Huggel

Geology Faculty Publications

Since 1994, at least six major (volume >106m3 ) ice and rock avalanches have occurred on Iliamna volcano, Alaska, USA. Each of the avalanches was preceded by up to 2 hours of seismicity believed to represent the initial stages of failure. Each seismic sequence begins with a series of repeating earthquakes thought to represent slip on an ice–rock interface, or between layers of ice. This stage is followed by a prolonged period of continuous ground-shaking that reflects constant slip accommodated by deformation at the glacier base. Finally the glacier fails in a large avalanche. Some of the events appear to …

Pleistocene Brawley And Ocotillo Formations: Evidence For Initial Strike-Slip Deformation Along The San Felipe And San Jacinto Fault Zones, Southern California, Stefan M. Kirby, Susanne U. Janecke, Rebecca J. Dorsey, Bernard A. Housen, Victoria E. Langenheim, Kristin A. Mcdougall, Alexander N. Steely

Geology Faculty Publications

We examine the Pleistocene tectonic reorganization of the Pacific–North American plate boundary in the Salton Trough of southern California with an integrated approach that includes basin analysis, magnetostratigraphy, and geologic mapping of upper Pliocene to Pleistocene sedimentary rocks in the San Felipe Hills. These deposits preserve the earliest sedimentary record of movement on the San Felipe and San Jacinto fault zones that replaced and deactivated the late Cenozoic West Salton detachment fault. Sandstone and mudstone of the Brawley Formation accumulated between ∼1.1 and ∼0.6–0.5 Ma in a delta on the margin of an arid Pleistocene lake, which received sediment from …

Impacts Of The Agricultural Green Revolution Induced Land Use Changes On Air Temperatures In India, Rezaul Mahmood

School of Natural Resources: Faculty Publications

No abstract provided.

Cenozoic Extensional Processes And Tectonics In The Northern Rocky Mountains, Susanne U. Janecke

Susanne U. Janecke

Extension has shaped the crust of the Northern Rocky Mountains for more than a billion years. Rifting produced the Belt basin shortly after 1.5 Ga and initiated the Paleozoic passive margin. Mesozoic to early Cenozoic convergence pro-duced the Cordilleran fold-and-thrust belt, the uplifts of the Rocky Mountain foreland (Laramide) and an unusually broad Challis arc in the northern Rocky Mountains. The struc-tural grain of the contractional belts, basement features, and the rheology of the Idaho batho-lith influenced the locus, kinematics and ge-ometry of the >55 m.y. of extension that fol-lowed. Sparse data suggest that extension may have begun in the …

Continuous Laser‐Excited Photothermal Spectrometry Of CdsXSe1‐X Doped Glasses, Oluwatosin Dada, Matthew R. Jorgensen, Stephen E. Bialkowski

Stephen E. Bialkowski

Photothermal lens measurements and finite element modeling are used to examine the physical changes taking place in optical filter glasses. Colored glass and neutral density filters are found to have a strong positive temperature-dependent refractive index change. The overall positive refractive index change is thought to be a consequence of complex counteracting factors: stress-induced birefringence, polarizability, structural network, and temperature-dependent carrier density changes in the CdS_xSe_1–x microcrystals that produce optical properties of these glasses. Finite element analysis (FEA) modeling is used to examine the temperature profiles and the goodness of the semi-infinite thermal diffusion solution normally used …

Longitudinal Dependence Of Middle And Low Latitude Zonal Plasmadrifts Measured By De-2, J. Jensen, Bela Fejer

Bela G. Fejer

We used ion drift observations from the DE-2 satellite to study for the first time the longitudinal variations of middle and low latitude F region zonal plasma drifts during quiet and disturbed conditions. The quiet-time middle latitude drifts are predominantly westward; the low latitude drifts are westward during the day and eastward at night. The daytime quiet-time drifts do not change much with longitude; the nighttime drifts have strong season dependent longitudinal variations. In the dusk-premidnight period, the equinoctial middle latitude westward drifts are smallest in the European sector and the low latitude eastward drifts are largest in the American-Pacific …

Low-Temperature Charge Transport In Ga-Acceptor Nanowires Implanted By Focused-Ion Beams, S. J. Robinson, C. L. Perkins, T. -C. Shen, J. R. Tucker, T. Schenkel, X. W. Wang, T. P. Ma

T. -C. Shen

Ga-acceptor nanowires were embedded in crystalline Si using focused-ion beams. The dc current-voltage characteristics of these wires after annealing are highly nonlinear at low temperatures. A conductance threshold of less than 50mV is observed independent of Ga⁺ dosage and implant beam overlap. These features suggest a Coulomb blockade transport mechanism presumably caused by a network of Ga precipitates in the substrate. This granular scenario is further supported by measurements of gated nanowires. Nanowires with metallic conductance at low temperatures could be achieved by reducing the current density of the focused-ion beams.

Development Of A Novel Modular Mid-Infrared Sensor For The In-Situ Detection Of The Btex Compounds In Water, Raymond Mccue

Doctoral

This research thesis describes the design, construction and testing of a novel modular mid-infrared fibre optic sensing system for the detection of hydrocarbons in water. It is the adverse effects to these hydrocarbon pollutants on flora and fauna that has led to the development of sensing systems for their detection and quantification. The key sensor design feature, its modularity, utilises simple low cost commercially available optical components, which are inherently suited to construct compact rugged sensing systems to perform in-situ measurements which are ideally preferred for environmental sensing. The various laboratory-based prototypes constructed weee calibrated for two target analytes over …

Comparison Of Efficiency Of An Advanced Oxidation Process For Degrading Major Classes Of Dyes, Fatima Hasan Abdullah Ai-Hamedi

Theses

Synthetic dyes are a major part of our life. Products ranging from clothes to leather

Accessories to furniture all depend on extensive use of organic dyes.

There are numerous classes of these dyes. However, azo, anthraquinonoid,

Triarylmethane, diarylmethane, acridine, quinine, xanthane and nitro represent the major

Classes and are most commonly used dyes.

An unfortunate side effect of their widespread use is the fact that up to 12% of these dyes are

Wasted during the dyeing process, and that approximately 20% of this waste enters the environment (mostly in water supply). The effluents from these industries cause the water bodies …

Modeling Of Invasive Exotic Plants Dynamics In Arid Region Using Remote Sensing And Gis: A Case Study Of Prosopis Juliflora In The Uae, Bassam Saeed Dohai

Theses

High resolution digital aerial photographs were used to rate the change and to evaluate the woody Prosopis juliflora dynamics in northern UAE, Filayah (untreated) and Khut (treated). A time series of three different dates: 1986, 1996, and 2005 were chosen. Onscreen digitizing of plant communities was conducted using interpretative elements such as shape, tone texture, shadow and final maps were produced with acceptable accuracy. A geodatabase was built for both sites containing layers representing different dates. Statistical analysis was performed to rate the changes of the following four spatial attributes: percent cover, patch density, patch size, and mean patch shape …