Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Life Sciences (174)
- Biology (118)
- Physical Sciences and Mathematics (87)
- Environmental Sciences (48)
- Social and Behavioral Sciences (45)
-
- Engineering (26)
- Physics (21)
- Animal Sciences (20)
- Biomedical Engineering and Bioengineering (19)
- Plant Sciences (17)
- Psychology (17)
- Ecology and Evolutionary Biology (16)
- Forest Sciences (13)
- Agriculture (12)
- Earth Sciences (11)
- Medicine and Health Sciences (10)
- Arts and Humanities (8)
- Food Science (7)
- Water Resource Management (7)
- Aquaculture and Fisheries (6)
- Civil and Environmental Engineering (6)
- Communication (6)
- Geology (6)
- Dairy Science (5)
- Business (4)
- Environmental Indicators and Impact Assessment (4)
- Genetics and Genomics (4)
- Mathematics (4)
- Medical Specialties (4)
- Nutrition (4)
- Keyword
-
- Utah (22)
- Scanning electron microscopy (20)
- Environmental (16)
- Impact (10)
- Development (9)
-
- Management (9)
- Atomic force microscopy (8)
- Statement (8)
- 1996 (7)
- Final (7)
- Assessment (6)
- Calcium oxalate (6)
- Electron microscopy (6)
- Forest (6)
- Grazing (6)
- Wyoming (6)
- Area (5)
- Collagen (5)
- Immunocytochemistry (5)
- Livestock (5)
- Natural (5)
- Plan (5)
- Urolithiasis (5)
- 2 (4)
- Adhesion (4)
- Apoptosis (4)
- Crystallization (4)
- DNA (4)
- Decision (4)
- Growth (4)
- Publication
-
- Scanning Microscopy (109)
- All Graduate Theses and Dissertations, Spring 1920 to Summer 2023 (75)
- Small Satellite Conference (49)
- Undergraduate Honors Capstone Projects (21)
- Cells and Materials (20)
-
- Economic Research Institute Study Papers (16)
- All Physics Faculty Publications (13)
- All U.S. Government Documents (Utah Regional Depository) (12)
- All Graduate Plan B and other Reports, Spring 1920 to Spring 2023 (8)
- All Archived Publications (7)
- Aspen Bibliography (6)
- Final Environmental Impact Statements (WY) (5)
- Record of Decisions (WY) (4)
- Utah Space Grant Consortium (4)
- Watershed Sciences Faculty Publications (4)
- Bela G. Fejer (3)
- Civil and Environmental Engineering Faculty Publications (3)
- Elusive Documents (3)
- Reports (3)
- Annual Reports (2)
- Biology Faculty Publications (2)
- Canyonlands Research Bibliography (2)
- Cheese Industry Conference (2)
- Discovery Magazine (2)
- Journal Articles (2)
- Management Faculty Publications (2)
- Resource Management Plans (WY) (2)
- Space Dynamics Laboratory Publications (2)
- Utah Science (2)
- All Current Publications (1)
- Publication Type
Articles 1 - 30 of 415
Full-Text Articles in Entire DC Network
Correlated Confocal And Intermediate Voltage Electron Microscopy Imaging Of The Same Cells Using Sequential Fluorescence Labeling, Fixation, And Critical Point Dehydration, Lee D. Peachey, Harunori Ishikawa, Tohru Murakami
Correlated Confocal And Intermediate Voltage Electron Microscopy Imaging Of The Same Cells Using Sequential Fluorescence Labeling, Fixation, And Critical Point Dehydration, Lee D. Peachey, Harunori Ishikawa, Tohru Murakami
Scanning Microscopy
Confocal laser scanning microscopy (CLSM) and intermediate voltage transmission electron microscopy (IVEM) each has its own particular advantages. CLSM can examine living cells, but is particularly useful when applied to cells that have been lightly fixed, permeabilized, and stained with fluorescent-labeled antibodies for localization of specific molecular species at the resolution of the light microscope while still in the hydrated state. IVEM provides much higher resolution images, but requires more drastic preparation procedures, including dehydration. This paper presents methods for combining these complementary approaches to examine exactly the same cells sequentially by CLSM and IVEM. Cells are grown in culture …
Immunocytochemistry By Electron Spectroscopic Imaging Using Well Defined Boronated Monovalent Antibody Fragments, M. M. Kessels, B. Qualmann, W. D. Sierralta
Immunocytochemistry By Electron Spectroscopic Imaging Using Well Defined Boronated Monovalent Antibody Fragments, M. M. Kessels, B. Qualmann, W. D. Sierralta
Scanning Microscopy
Contributing to the rapidly developing field of immunoelectron microscopy a new kind of markers has been created. The element boron, incorporated as very stable carborane clusters into different kinds of peptides, served as a marker detectable by electron spectroscopic imaging (ESI) - an electron microscopic technique with high-resolution potential.
Covalently linked immunoreagents conspicuous by the small size of both antigen recognizing part and marker moiety are accessible by using peptide concepts for label construction and their conjugation with Fab' fragments. Due to a specific labeling of the free thiol groups of the Fab' fragments, the antigen binding capacity was not …
In Situ Hybridization, In Situ Transcription, And In Situ Polymerase Chain Reaction, L. E. De Bault, J. Gu
In Situ Hybridization, In Situ Transcription, And In Situ Polymerase Chain Reaction, L. E. De Bault, J. Gu
Scanning Microscopy
In situ hybridization, in situ transcription, and in situ polymerase chain reaction (PCR) are techniques used to detect DNA and RNA sequences within a cell or tissue structure. These three in situ methodologies employ the principles of recombinant DNA to form double-stranded hybrids of DNA-DNA, DNA-RNA, or RNA-RNA. The essence of in situ hybridization (ISH) is the hybridization of a labeled probe to a complementary target sequence, whereas in situ transcription (IST) is the synthesis of complementary DNA incorporating a label directly on the target DNA or RNA within a cell or tissue. In the case of in situ PCR …
Preparation Of Samples For Polymerase Chain Reaction In Situ, Gerard J. Nuovo
Preparation Of Samples For Polymerase Chain Reaction In Situ, Gerard J. Nuovo
Scanning Microscopy
The purpose of this paper is to describe the key variables in sample and reagent preparation needed for successful polymerase chain reaction (PCR) in situ. Tissue or cell preparations should be fixed in a cross linking fixative, such as 10% buffered formalin, preferably from 15 to 48 hours. Tissues should be embedded in paraffin; cell preparations can be fixed when near confluence, then physically removed and processed. When possible three samples (4 μM tissue sections or 1-5000 cells) should be placed on silane coated glass slides. Digestion in pepsin (2 mg/ml) for 30 min is adequate for DNA detection …
Microscopic Analysis Of Dna And Dna-Protein Assembly By Transmission Electron Microscopy, Scanning Tunneling Microscopy And Scanning Force Microscopy, T. Müller-Reichhert, H. Gross
Microscopic Analysis Of Dna And Dna-Protein Assembly By Transmission Electron Microscopy, Scanning Tunneling Microscopy And Scanning Force Microscopy, T. Müller-Reichhert, H. Gross
Scanning Microscopy
To investigate DNA and DNA-protein assembly, nucleic acids were adsorbed to freshly cleaved mica in the presence of magnesium ions. The efficiency of DNA adhesion and the distribution of the molecules on the mica surface were checked by transmission electron microscopy. In addition, various kinds of DNA-protein interactions including DNA wrapping and DNA super-coiling were analyzed using electron microscopy. In parallel, this Mg2+/mica method can be applied (1) to analyze embedded DNA by scanning tunneling microscopy, (2) to visualize freeze-dried, metal coated DNA-protein complexes by tunneling microscopy, and (3) to image DNA or DNA-protein interaction in air or …
Aspects Of Cryofixation And Cryosectioning For The Observation Of Bulk Biological Samples In The Hydrated State By Cryoelectron Microscopy, K. Richter
Scanning Microscopy
Cryoelectron microscopy allows the observation of hydrated samples at high spatial resolution, and it would be of great interest in biology to apply this method to cells and tissues. However, because of technical problems, the cryo-observation of frozen hydrated ultrathin sections of bulk material has not become an established method. The major limitations are due to the difficulty of achieving the vitrification of such material, and the structural deformation caused by ultrathin sectioning: 1. The vitrification of cells in a physiological environment requires high-pressure freezing. However, new results suggest that the pressure may alter the ultrastructure of the sample. 2. …
Thermally Induced Core-Electron Binding-Energy Shifts In Transition Metals: An Experimentalinvestigation Of Ta(100), D. Mark Riffe, B. Kim, W. Hale, J. L. Erskine
Thermally Induced Core-Electron Binding-Energy Shifts In Transition Metals: An Experimentalinvestigation Of Ta(100), D. Mark Riffe, B. Kim, W. Hale, J. L. Erskine
All Physics Faculty Publications
High-resolution photoemission spectra from the 4f7/2 levels of Ta(100) have been obtained between 77 K and room temperature. The data show an increase in both the surface and bulk core-level binding energies (BE’s) as the temperature is raised: between 77 and 293 K the bulk and surface BE’s increase by 31±3 and 13±2 meV, respectively. A model calculation of the bulk binding-energy increase, which is based upon the lattice expansion of the solid, is in good agreement with the experimental results and indicates that the shifts arise from both initial- and final-state effects that are of comparable magnitude. The …
Electro-Optical Imaging Of F-Actin And Endoplasmic Reticulum In Living And Fixed Plant Cells, Nina Stromgren Allen, Marty N. Bennett
Electro-Optical Imaging Of F-Actin And Endoplasmic Reticulum In Living And Fixed Plant Cells, Nina Stromgren Allen, Marty N. Bennett
Scanning Microscopy
Confocal and video micrographs of living and fixed alfalfa roots, onion epithelial and pear pollen cells illustrate the architecture of the cytoskeleton and endoplasmic reticulum in plant cells. Fixation of plant tissues to preserve cytoplasmic structure poses special problems. When possible, emphasis should be placed on the imaging of structures in stained living cells over time. The early events that occur when Nod factors or bacteria elicit nodule formation in alfalfa roots will illustrate several approaches to plant cell fixation, staining and imaging. The first observable events after Nod factor stimulation occur in root hairs and are changes in rates …
Insights, Winter, 1996, Utah State University
Insights, Winter, 1996, Utah State University
Discovery Magazine
Bi-annual alumni newsletter for the College of Science of Utah State University in Logan.
Auroral Electrojet Irregularity Theory And Experiment: A Criticalreview Of Present Understanding And Future Directions, J. D. Sahr, Bela G. Fejer
Auroral Electrojet Irregularity Theory And Experiment: A Criticalreview Of Present Understanding And Future Directions, J. D. Sahr, Bela G. Fejer
Bela G. Fejer
We review the experimental observations of meter scale plasma irregularities in the auroral E region and the status of their theoretical understanding. Most of the experimental data is derived from VHF radar scatter experiments, but sounding rockets also provide crucial information not obtainable from radars. Linear theories correctly predict the altitude of occurence, strong magnetic aspect sensitivity, marginal instability, and typical phase velocities. Subsequent nonlinear theories have been developed to account for other observed features but with less satisfying application. Further understanding of auroral electrojet irregularities is impeded by precision limitations of existing instruments, by radar data which may seem …
Building A Competition Buzzer Set, John R. Dennison, Richard Davis
Building A Competition Buzzer Set, John R. Dennison, Richard Davis
All Physics Faculty Publications
No abstract provided.
Utah's Transportation Solution: Future Vision, Bryan Ray Farris
Utah's Transportation Solution: Future Vision, Bryan Ray Farris
Undergraduate Honors Capstone Projects
In the vision statement for the future of the State of Utah drafted by the Utah Tomorrow Committee one of the primary objectives outlined is to “Build a statewide economy and infrastructure that supports a broad spectrum of opportunity for all citizens while advancing the standard of living and maintaining a high quality of life.” This statement has been reiterated by many over the last several years as the state continues to grow, experiencing along with that growth many pains along the way.
A Scanning Electron Microscopy Study Of Taxus Leaves As Related To Taxonomy, G.A. Strobel, W. M. Hess
A Scanning Electron Microscopy Study Of Taxus Leaves As Related To Taxonomy, G.A. Strobel, W. M. Hess
Scanning Microscopy
Scanning electron microscopy, when applied to the surfaces of the needles of Taxus spp. (yew) revealed features that appear useful in the taxonomy of this tree species which yields the important anticancer drug, taxol. For instance, all of the four North American species have 3-5 rows of stomata on one-half of the abaxial leaf surface, whereas all of the others, including those from Europe and Asia, have 7-10 rows of stomata. The appearance of individual or fused papilliform epidermal cells and their arrangement on the leaf surface also is a feature that varies between species. Patterns of wax formation appeared …
The Chromatin Structure Of Well-Spread Demembranated Human Sperm Nuclei Revealed By Atomic Force Microscopy, M. J. Allen, E. M. Bradbury, R. Balhorn
The Chromatin Structure Of Well-Spread Demembranated Human Sperm Nuclei Revealed By Atomic Force Microscopy, M. J. Allen, E. M. Bradbury, R. Balhorn
Scanning Microscopy
The fundamental structure formed when genomic DNA is packaged by protamine in the human sperm nucleus still remains essentially unresolved. It is known that the binding of protamine, a small arginine-rich protein, to DNA generates a large dense, hydrophobic complex making the sperm chromatin structure difficult to study microscopically. To visualize the internal nuclear structures, isolated human sperm nuclei were swollen extensively in saline buffer using only a reducing agent. The nuclei were swollen during deposition onto coverglass and then imaged in the atomic force microscope (AFM). The two main results obtained from imaging individual well-spread nuclei indicate that native …
Asymptotic Conservation Laws In Field Theory, Ian M. Anderson, Charles G. Torre
Asymptotic Conservation Laws In Field Theory, Ian M. Anderson, Charles G. Torre
All Physics Faculty Publications
A new, general, field theoretic approach to the derivation of asymptotic conservation laws is presented. In this approach asymptotic conservation laws are constructed directly from the field equations according to a universal prescription which does not rely upon the existence of Noether identities or any Lagrangian or Hamiltonian formalisms. The resulting general expressions of the conservation laws enjoy important invariance properties and synthesize all known asymptotic conservation laws, such as the Arnowitt-Deser-Misner energy in general relativity.
Phylogenetic Analysis And Taxonomic Revision Of The Perdita Subgenera Macrotera, Macroteropsis, Macroterella And Cockerellula (Hymenoptera: Andrenidae), Bryan N. Danforth
Phylogenetic Analysis And Taxonomic Revision Of The Perdita Subgenera Macrotera, Macroteropsis, Macroterella And Cockerellula (Hymenoptera: Andrenidae), Bryan N. Danforth
Da
No abstract provided.
Defining Arealistic Control For The Chloroform Fumigation-Incubation Method Using Microscopiccounting And 14c-Substrates, William R. Horwath, Eldor A. Paul, David Harris, Jeanette M. Norton, Leslie Jagger, Kenneth A. Horton
Defining Arealistic Control For The Chloroform Fumigation-Incubation Method Using Microscopiccounting And 14c-Substrates, William R. Horwath, Eldor A. Paul, David Harris, Jeanette M. Norton, Leslie Jagger, Kenneth A. Horton
Plants, Soils, and Climate Faculty Publications
Chloroform fumigation-incubation (CFI) has made possible the extensive characterization of soil microbial biomass carbon (C) (MBC). Defining the non-microbial C mineralized in soils following fumigation remains the major limitation of CFI. The mineralization of non-microbial C during CFI was examined by adding 14C-maize to soil before incubation. The decomposition of the 14C-maize during a 10-d incubation after fumigation was 22.5% that in non-fumigated control soils. Re-inoculation of the fumigated soil raised 14C-maize decomposition to 77% that of the unfumigated control. A method was developed which varies the proportion of mineralized C from the unfumigated soil …
On Hack's Law, Riccardo Rigon, Ignacio Rodriguez-Iturbe, Amos Maritan, Achille Giacometti, David G. Tarboton, Andrea Rinaldo
On Hack's Law, Riccardo Rigon, Ignacio Rodriguez-Iturbe, Amos Maritan, Achille Giacometti, David G. Tarboton, Andrea Rinaldo
Civil and Environmental Engineering Faculty Publications
Hack's law is reviewed, emphasizing its implications for the elongation of river basins as well as its connections with their fractal characteristics. The relation between Hack's law and the internal structure of river basins is investigated experimentally through digital elevation models. It is found that Hack's exponent, elongation, and some relevant fractal characters are closely related. The self-affine character of basin boundaries is shown to be connected to the power law decay of the probability of total contributing areas at any link and to Hack's law. An explanation for Hack's law is derived from scaling arguments. From the results we …
Atomic Force Microscopy Of Humic Acids, A. Ikai, R. Osterberg
Atomic Force Microscopy Of Humic Acids, A. Ikai, R. Osterberg
Scanning Microscopy
Atomic force microscopic (AFM) images of humic acids show discrete, globular particles, where particles of the order of magnitude 100 to 300 nm dominate the image fields; the humic acids had been grown to a steady state at pH 5.0. The AFM data are consistent with our previously reported small-angle neutron scattering (SANS) study done under similar conditions. In further agreement, the cluster-cluster interactions shown in our previous SANS study may have their counterparts in closely interacting particles appearing as twin particles in the AFM images.
Preparation Of Cultured Smooth Muscle Cells From Human Myometrium For X-Ray Microanalysis, Jarin Hongpaisan, Godfried M. Roomans
Preparation Of Cultured Smooth Muscle Cells From Human Myometrium For X-Ray Microanalysis, Jarin Hongpaisan, Godfried M. Roomans
Scanning Microscopy
Methodological aspects of the use of X-ray microanalysis in physiological and pharmacological experiments on cultured myometrial cells were investigated. Cultured human myometrial cells were grown from biopsies after detaching the fibroblasts. Of the cultured cells, 95-98% showed desmin-like immunoreactivity. Transmission electron microscopy showed that subcultured cells were different from myometrial cells in situ. The effects of washing the cells to remove external salt-rich medium were investigated. All solutions removed the external medium, resulting in lower concentrations of Na and Cl. In the cells washed with 0.3 M mannitol, most of the elemental concentrations were significantly lower than in their …
Morphological And Chemical Properties Of Plastic Residues In Composts, Charles R. Krause, Leona E. Horst, Harry A. J. Hoitink
Morphological And Chemical Properties Of Plastic Residues In Composts, Charles R. Krause, Leona E. Horst, Harry A. J. Hoitink
Scanning Microscopy
The relative quantity of plastic film residues and other man-made materials in composts prepared from municipal solid wastes (MSW), biosolids, yard wastes, and pine bark was evaluated utilizing light and scanning electron microscopy equipped with energy dispersive X-ray analyzer. MSW composts screened through a 4 mm screen contained significant but highly variable quantities of plastic film residues and other man-made materials that escaped detection with the unaided eye. The other composts were free of such particles. We conclude that the database for evaluation of man-made materials in MSW composts is inadequate and must be developed further.
Making Space For The Mormons, Utah State University Press
Making Space For The Mormons, Utah State University Press
Arrington Annual Lecture
No abstract provided.
Relative Intranuclear Magnesium And Phosphorus Contents In Normal And Tumor Cells Of The Human Thyroid Gland As Revealed By Energy-Dispersive X-Ray Microanalysis, Geza L. Lukacs, Imre Zs.-Nagy, Janos Steiber, Ferenc Gyori, Gyorgy Balazs
Relative Intranuclear Magnesium And Phosphorus Contents In Normal And Tumor Cells Of The Human Thyroid Gland As Revealed By Energy-Dispersive X-Ray Microanalysis, Geza L. Lukacs, Imre Zs.-Nagy, Janos Steiber, Ferenc Gyori, Gyorgy Balazs
Scanning Microscopy
Energy dispersive X-ray microanalysis was performed on altogether 42 surgically removed tissue specimens of 32 patients, which were taken either from intact thyroid parts or various histopathologically verified tumors of the thyroid gland. The tissue specimens were processed with the freeze-fracture-freeze-drying technique and then analyzed in the so-called bulk specimen form. The studies were carried out during the years 1980-81, when intranuclear monovalent ionic composition was studied in detail. From the retained total elemental peak list, it was possible to calculate retrospectively the relative intranuclear Mg and P contents. The data processed by nested (hierarchical) analysis of variance show that …
Imaging The Electrocyte Of Torpedo Marmorata By Scanning Force Microscopy, L. I. Pietrasanta, A. Schaper, G. Q. Fox, F. J. Barrantes, T. M. Jovin
Imaging The Electrocyte Of Torpedo Marmorata By Scanning Force Microscopy, L. I. Pietrasanta, A. Schaper, G. Q. Fox, F. J. Barrantes, T. M. Jovin
Scanning Microscopy
Scanning force microscopy (SFM) and scanning electron microscopy (SEM) were used to examine the tissue structure of the electric organ of Torpedo marmorata in air and in liquid after applying fracturing and cryosectioning techniques and chemical fixation. The electric organ is organized in columns of stacked electrocytes, arranged in a honeycomb pattern. The columns were cut along a plane normal to the cell stack and thin sections were transferred to polylysine coated glass coverslips. The polarity of the electrocytes was made apparent by immunofluorescence microscopy directed to different domains of the acetylcholine receptor (AChR), thus revealing the innervated face of …
Hair Bundle Morphology On Surviving Hair Cells Of The Chick Basilar Papilla Exposed To Intense Sound, J. S. Erulkar, D. A. O'Brien, J. C. Saunders
Hair Bundle Morphology On Surviving Hair Cells Of The Chick Basilar Papilla Exposed To Intense Sound, J. S. Erulkar, D. A. O'Brien, J. C. Saunders
Scanning Microscopy
Exposure to intense sound produces a well-defined "patch" lesion on the chick basilar papilla in which 30-35% of the short hair cells are lost. The present study compares various aspects of sensory hair bundle morphology on surviving hair cells in the patch lesion with hair bundles from matched locations on nonexposed control papilla immediately after removal from the exposure and 12-days post exposure. The height and thickness of the hairs, the total number of hairs in the bundle, the width of the bundle, and the area and perimeter of the apical surface of the hair cell were quantified from scanning …
Paleomicrobiological Study In Dental Calculus: Streptococcus Mutans, A. Linossier, M. Gajardo, J. Olavarria
Paleomicrobiological Study In Dental Calculus: Streptococcus Mutans, A. Linossier, M. Gajardo, J. Olavarria
Scanning Microscopy
Morphological types of bacterial remains preserved in ancient tartar of teeth from extinct human groups, which included some communities of coastal gatherers, fishermen, hunters, and farmers, and those practicing a mixed economy, were analyzed. Previous studies have shown the presence of bacteria in ancient tartar. The aim of this work was to determine whether Streptococcus mutans was present in ancient populations (500-12,000 years old). Teeth samples were from ancient skulls obtained from different anthropological collections: the north and south of Chile (before the Spanish conquest), Palencia, Spain, and an eastern Mediterranean region (Levant). Optical microscopy showed Gram positive and Gram …
Video Rate Confocal Laser Scanning Reflection Microscopy In The Investigation Of Normal And Neoplastic Living Cell Dynamics, Pavel Vesely, Alan Boyde
Video Rate Confocal Laser Scanning Reflection Microscopy In The Investigation Of Normal And Neoplastic Living Cell Dynamics, Pavel Vesely, Alan Boyde
Scanning Microscopy
The introduction of video rate confocal laser scanning microscopes (VRCLSM) used in reflection mode with high magnification, high aperture objective lenses and with further magnification by a zoom facility allowed the first detailed observations of the activity of living cytoplasm and offered a new tool for investigation of the structural transition from the living state to the specimen fixed for electron microscopy (EM). We used a Noran Odyssey VRCLSM in reflection (backscattered) mode. A greater degree of oversampling and more comfortable viewing of the live or taped video image was achieved at zoom factor 5, giving a display monitor field …
Marginalia No. 1, Merrill-Cazier Library
Marginalia No. 1, Merrill-Cazier Library
Marginalia
Vol. 1, Number 1 (Issue no. 1): Autumn issue 1996
WHAT ARE FRIENDS FOR?-An Introduction by Prof. William F. Lye
OF ATOMS AND BITS-John Needham, Editor, describes hopes for Marginalia
LIGHT PLUS TIME INCIDENT-Max Peterson on the SciTech Library
JUST BETWEEN FRIENDS-Spotlights Bob Parsons, Univ. Archivist in USU Special Collections
A LASTING GIFT-How to make a memorial gift to USU Libraries
TRAINS, PLANES, & AUTOMOBILES-Report on a recent gift of books from Prof. Arthur Frietzhe
A BOOKISH LEXICON-Various “book words”.
JOIN FRIENDS!-Full page insert w/reply envelope.
FRIENDS CALENDAR-Outlining the CollegeWise series, Arrington Lecture, & Fall Roundup Friends Meeting
An Optimization Model For Planning Natural Gas Purchases, Transportation, Storage And Deliverability, Anthony E. Bopp, Vijay R. Kannan, Susan W. Palocsay, Scott P. Stevens
An Optimization Model For Planning Natural Gas Purchases, Transportation, Storage And Deliverability, Anthony E. Bopp, Vijay R. Kannan, Susan W. Palocsay, Scott P. Stevens
Management Faculty Publications
Natural gas local distribution companies (LDCs) face the problem of managing natural gas purchases under conditions of uncertain demand and frequent price change. In this paper, we present a stochastic optimization model to solve this problem. Unlike other models, this model explicitly considers deliverability, the rate at which gas can be added to and withdrawn from a storage facility, as a variable, and considers its role in ensuring a secure supply of gas. Deliverability is often overlooked in gas supply planning, yet is a critical factor in achieving a secure gas supply. Using data from an LDC in Huntsville, Alabama, …
Raman Spectroscopy Of Carbon Materials, John R. Dennison, M. Holtz, G. Swain
Raman Spectroscopy Of Carbon Materials, John R. Dennison, M. Holtz, G. Swain
All Physics Faculty Publications
Use of carbon materials is no longer limited to diamond jewelry or graphite pencils and lubricants. The last decade has witnessed an explosion of technological applications driven by the development of fabrication methods and the discovery of several new classes of pure carbon. Structural diversity exhibited by the carbon atoms, from local chemical order to long-range crystalline order, is key to understanding their physical and chemical properties and in future materials development. This article summarizes the use of Raman spectroscopy as a principal tool to investigate the vibrational dynamics of carbon materials and to provide indirect structural characterization of their …