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Articles 31 - 60 of 98
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Sorption Isotherm Characteristics Of Distillers Dried Grains With Solubles (Ddgs), Vykundeshwari Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater
Sorption Isotherm Characteristics Of Distillers Dried Grains With Solubles (Ddgs), Vykundeshwari Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater
Kurt A. Rosentrater
Distillers Dried Grains with Solubles (DDGS) is widely recognized as a highly nutritious animal feed ingredient. With the exponential growth of the fuel ethanol industry in the past several years, significant quantities of distillers grains are now being produced. To effectively utilize these feeds in the domestic market, however, these coproduct streams are increasingly being transported greater distances, and must be stored in various structures until final use. Unfortunately, DDGS flow is often problematic, as it frequently becomes restricted by caking and bridging during storage and transport. This issue may arise from a number of factors, including storage moisture, temperature, …
Partitioning Of E. Coli And Enterococci Between Planktonic And Sorbed Phases In Runoff From Pasturelands, Michelle L. Soupir, H. E. Saied Mostaghimi, Elizabeth F. Alphin
Partitioning Of E. Coli And Enterococci Between Planktonic And Sorbed Phases In Runoff From Pasturelands, Michelle L. Soupir, H. E. Saied Mostaghimi, Elizabeth F. Alphin
Michelle L. Soupir
Pathogens are the leading cause of surface water impairments in Virginia. Currently, Nonpoint Source (NPS) pollution models are most frequently used to determine the maximum allowable loading rates of bacteria from identified sources and they typically simulate bacterial transport to surface waters as a planktonic or free pollutant. Very few models attempt to partition between the planktonic and attached phases primarily because data on bacteria partitioning during overland flow events are currently not available. A field study was conducted to evaluate the partitioning of E. coli and enterococci between the planktonic and attached phases in runoff from pasturelands and to …
Characteristics Of North American Meat & Bone Meal Relevant To The Development Of Non-Feed Applications, Rafael A. Garcia, Kurt A. Rosentrater, Rolando A. Flores
Characteristics Of North American Meat & Bone Meal Relevant To The Development Of Non-Feed Applications, Rafael A. Garcia, Kurt A. Rosentrater, Rolando A. Flores
Kurt A. Rosentrater
Unmarketable animal tissues are typically processed by rendering plants, which transform them into meat & bone meal (MBM) or similar products. MBM’s traditional use as animal feed has become increasingly threatened, but MBM has potential for non-feed applications. Development of new products and processes is hindered by lack of reliable data on many of MBM’s chemical and physical properties. MBM samples as well as data on raw material and process were collected from 19 rendering facilities in the United States and Canada. A large majority of the raw material was tissue from cattle, swine and poultry. All facilities surveyed practiced …
Anaerobic Digestion Potential For Ethanol Processing Residues, Kurt A. Rosentrater, Heath R. Hall, Conly L. Hansen
Anaerobic Digestion Potential For Ethanol Processing Residues, Kurt A. Rosentrater, Heath R. Hall, Conly L. Hansen
Kurt A. Rosentrater
The production of corn-based ethanol in the U.S. is dramatically increasing, and consequently so is the quantity of byproduct materials generated from this processing sector. These coproduct streams are currently solely utilized as livestock feed, which is a route that provides ethanol processors with a substantial revenue source and significantly increases the profitability of the production process. With the construction and operation of many new plants in recent years, these residuals do, however, have much potential for value-added processing and utilization in other sectors as well. This option holds the promise of economic benefit for corn processors, especially if the …
Effect Of Die Dimensions On Extruder Processing Parameters And Extrudate Properties For Distillers Grains Based Feeds, Nehru Chevanan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, James L. Julson
Effect Of Die Dimensions On Extruder Processing Parameters And Extrudate Properties For Distillers Grains Based Feeds, Nehru Chevanan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater, James L. Julson
Kurt A. Rosentrater
Ingredient blends containing 28% protein with distillers dried grains with solubles, soy flour, corn flour, fish meal, mineral mix and vitamin mix was extruded in a C.W. Brabender single screw laboratory extruder using 7 different die nozzles. The die nozzle diameter (D), length (L) and L/D ratio of the dies were in the range of 2.0 mm to 6.0 mm, 10.0 mm to 30.0 mm and 3.33 to 10.00, respectively. The moisture content of the ingredient mix was varied from 15% to 25% and the temperature of the transition zone and die section were varied from 100° C to 140°C. …
Improved Sensor For Agricultural Ventilation Fan Monitoring, Matthew J. Darr, Lingying Zhao, Christopher Gecik, Ji-Qin Ni
Improved Sensor For Agricultural Ventilation Fan Monitoring, Matthew J. Darr, Lingying Zhao, Christopher Gecik, Ji-Qin Ni
Matthew J. Darr
A new sensor for monitoring the continuous operation of exhaust fans in confined animal feeding operations (CAFOs) was developed and tested. The sensor relies on integrated Micro Electro Mechanical Systems (iMEMS) technology to accurately and reliably detect vibration on the external hood of agricultural fans, caused by the rotation of the fan blade. When coupled with a sensor to measure pressure drop across the fan and an appropriate fan curve, the vibration sensor can enable real-time fan specific collection of emission data from animal housing structures.The sensor integrated an iMEMS accelerometer along with various signal conditioning components to convert the …
The Global Relevance Of Bio-Based Industries To Engineering And Technology Education, Kurt A. Rosentrater, Radha Balamuralikrishma
The Global Relevance Of Bio-Based Industries To Engineering And Technology Education, Kurt A. Rosentrater, Radha Balamuralikrishma
Kurt A. Rosentrater
The society in which we live has developed an insatiable demand for energy and material goods. In particular, recent data reveals that the aggressive pursuit of improved standards of living in the highly populated countries of India and China has contributed to increased demand for fossil fuels, which has exacerbated the recent spike in energy costs. Historically, these needs have been met primarily by fossil fuels and other non-renewable raw materials. As environmental concerns grow, however, renewable resources are gaining increased attention. This paper examines the emergence and importance that bio-based industries are increasingly beginning to play. A bio-based enterprise, …
An Evaluation Of An Established Case Study For Engineering Technology Education, Kurt A. Rosentrater, Radha Balamuralikrishma
An Evaluation Of An Established Case Study For Engineering Technology Education, Kurt A. Rosentrater, Radha Balamuralikrishma
Kurt A. Rosentrater
Engineering and technology educators focus on meeting existing and future needs of industry when designing the content domain and planning instructional methods in their discipline. However, undergraduate students in engineering and technology rarely have an opportunity to solve real world problems that require integration across several disciplinary branches of engineering and those outside of engineering. This makes it difficult for students to make the transition from academia to industry especially in an era where the principles of concurrent engineering are employed in new product design and development. Therefore, there is a strong need to bring challenging, industry involved problems into …
Biorefining Of Renewable Resources—Emerging Opportunities For Engineering Education, Kurt A. Rosentrater
Biorefining Of Renewable Resources—Emerging Opportunities For Engineering Education, Kurt A. Rosentrater
Kurt A. Rosentrater
The society in which we live has developed an insatiable demand for energy and material goods. Historically these needs have primarily been met by utilizing fossil fuels and other nonrenewable raw materials. As environmental concerns grow, however, renewable resources are gaining increased attention. This paper examines industrial biorefineries, which are at the leading edge of the development of emerging biobased industries. Biorefineries, similar in concept to traditional petroleum refineries, utilize various conversion technologies to produce multiple products, including fuels, chemicals, industrial products, and electrical power from renewable biomass sources, such as corn stover, residue straw, perennial grasses, legumes, and other …
Molecular Validation Of Lpxc As An Antibacterial Drug Target In Pseudomonas Aeruginosa, Adam Barb, Khisimuzi E. Mdluli, Pamela R. Witte, Toni Kline, Alice L. Erwin, Bryce E. Mansfield, Amanda L. Mcclerren, Michael C. Pirrung, L. Nathan Tumey, Paul Warrener, Christian R. H. Raetz, C. Kenall Stover
Molecular Validation Of Lpxc As An Antibacterial Drug Target In Pseudomonas Aeruginosa, Adam Barb, Khisimuzi E. Mdluli, Pamela R. Witte, Toni Kline, Alice L. Erwin, Bryce E. Mansfield, Amanda L. Mcclerren, Michael C. Pirrung, L. Nathan Tumey, Paul Warrener, Christian R. H. Raetz, C. Kenall Stover
Adam Barb
LpxC [UDP-3-O-(R-3-hydroxymyristoyl)-GlcNAc deacetylase] is a metalloamidase that catalyzes the first committed step in the biosynthesis of the lipid A component of lipopolysaccharide. A previous study (H. R. Onishi, B. A. Pelak, L. S. Gerckens, L. L. Silver, F. M. Kahan, M. H. Chen, A. A. Patchett, S. M. Galloway, S. A. Hyland, M. S. Anderson, and C. R. H. Raetz, Science 274:980-982, 1996) identified a series of synthetic LpxC-inhibitory molecules that were bactericidal for Escherichia coli. These molecules did not inhibit the growth of Pseudomonas aeruginosa and were therefore not developed further as antibacterial drugs. The inactivity of the LpxC …
Preparing New Faculty Members To Be Successful: A No-Brainer And Yet A Radical Concept, Rebecca Brent, Sarah A. Rajala, Richard M. Felder
Preparing New Faculty Members To Be Successful: A No-Brainer And Yet A Radical Concept, Rebecca Brent, Sarah A. Rajala, Richard M. Felder
Sarah A. Rajala
A multifaceted program at North Carolina State University involving workshops and mentorships helps prepare new faculty members and graduate students for successful academic careers. This paper describes the elements of the program, reviews assessment data for each element, and offers recommendations to engineering schools wishing to establish their own programs for new and future faculty members.
Dynamics Of Surface Catalyzed Reactions; The Roles Of Surface Defects, Surface Diffusion, And Hot Electrons, Gabor Somorjai, Kaitlin Bratlie, Max Montano, Jeong Park
Dynamics Of Surface Catalyzed Reactions; The Roles Of Surface Defects, Surface Diffusion, And Hot Electrons, Gabor Somorjai, Kaitlin Bratlie, Max Montano, Jeong Park
Kaitlin M. Bratlie
The mechanism that controls bond breaking at transition metal surfaces has been studied with sum frequency generation (SFG), scanning tunneling microscopy (STM), and catalytic nanodiodes operating under the highpressure conditions. The combination of these techniques permits us to understand the role of surface defects, surface diffusion, and hot electrons in dynamics of surface catalyzed reactions. Sum frequency generation vibrational spectroscopy and kinetic measurements were performed under 1.5 Torr of cyclohexene hydrogenation/dehydrogenation in the presence and absence of H2 and over the temperature range 300-500 K on the Pt(100) and Pt(111) surfaces. The structure specificity of the Pt(100) and Pt(111) surfaces …
Fractionation Techniques To Concentrate Nutrient Streams In Distillers Grains, Kurt A. Rosentrater, Deepa Subramanian, Padmanaban G. Krishnan
Fractionation Techniques To Concentrate Nutrient Streams In Distillers Grains, Kurt A. Rosentrater, Deepa Subramanian, Padmanaban G. Krishnan
Kurt A. Rosentrater
Corn, the most widely produced feed grain in the United States, accounts for more than 90% of the total value and production of feed grains. It is also used for food, industrial materials, and fuel ethanol production. Distillers grains, the major coproduct from ethanol manufacturing, are used as livestock feed. There are, however, other potential options, including value-added food, industrial, chemical, and energy applications. Fractionating distillers grains into concentrated streams of protein, fiber, and fat may be key to facilitating these types of utilization. Previous studies on other products have shown that fractionation is a promising mechanism for extracting valuable …
Strongly Anisotropic Roughness In Surfaces Driven By An Oblique Particle Flux, Beate Schmittmann, Gunner Pruessner, Hans-Karl Janssen
Strongly Anisotropic Roughness In Surfaces Driven By An Oblique Particle Flux, Beate Schmittmann, Gunner Pruessner, Hans-Karl Janssen
Beate Schmittmann
Using field theoretic renormalization, an MBE-type growth process with an obliquely incident influx of atoms is examined. The projection of the beam on the substrate plane selects a “parallel” direction, with rotational invariance restricted to the transverse directions. Depending on the behavior of an effective anisotropic surface tension, a line of second-order transitions is identified, as well as a line of potentially first-order transitions, joined by a multicritical point. Near the second-order transitions and the multicritical point, the surface roughness is strongly anisotropic. Four different roughness exponents are introduced and computed, describing the surface in different directions, in real or …
Cropping Sequence And Tillage System Influences Annual Crop Production And Water Use In Semiarid Montana, Usa, Andrew W. Lenssen, G. D. Johnson, G. R. Carlson
Cropping Sequence And Tillage System Influences Annual Crop Production And Water Use In Semiarid Montana, Usa, Andrew W. Lenssen, G. D. Johnson, G. R. Carlson
Andrew W. Lenssen
Available water is typically the biggest constraint to spring wheat production in the northern Great Plains of the USA. The most common rotation for spring wheat is with summer fallow, which is used to accrue additional soil moisture. Tillage during fallow periods controls weeds, which otherwise would use substantial amounts of water, decreasing the efficiency of fallow. Chemical fallow and zero tillage systems improve soil water conservation, allowing for increased cropping intensity. We conducted a field trial from 1998 through 2003 comparing productivity and water use of crops in nine rotations under two tillage systems, conventional and no-till. All rotations …
Ionic Liquids In Analytical Chemistry, Jared L. Anderson, Daniel W. Armstrong, Guor-Tzo Wei
Ionic Liquids In Analytical Chemistry, Jared L. Anderson, Daniel W. Armstrong, Guor-Tzo Wei
Jared L. Anderson
Room-temperature ionic liquids (RTILs), also known as liquid organic, molten, or fused salts, are a class of nonmolecular ionic solvents with low melting points. The accepted definition of an RTIL is any salt that has a melting point lower than ambient temperature (1). However, “ionic liquid” (IL) is often applied to any compound that has a melting point <100 °C. Most common RTILs are composed of unsymmetrically substituted nitrogen-containing cations (e.g., imidazole, pyrrolidine, pyridine) with inorganic anions (e.g., Cl–, PF6 –, BF4 –). ILs are also interesting because of their other useful and intriguing physicochemical properties. Wilkes et al. first reported ambient-temperature ILs based on the 1-alkyl-3-methylimidazolium cation in 1982 (2). Since then, many ILs containing a variety of cations and anions of different sizes have been synthesized to provide specific characteristics.
Distinct Glycan Structures Of Uroplakins Ia And Ib, Bo Xie, Ge Zhou, Shiu-Yung Chan, Ellen Shapiro, Xiant-Peng Kong, Xue-Ru Wu, Tung-Tien Sun, Catherine E. Costello
Distinct Glycan Structures Of Uroplakins Ia And Ib, Bo Xie, Ge Zhou, Shiu-Yung Chan, Ellen Shapiro, Xiant-Peng Kong, Xue-Ru Wu, Tung-Tien Sun, Catherine E. Costello
Bo Xie
Although it has been shown that mouse uroplakin (UP) Ia, a major glycoprotein of urothelial apical surface, can serve as the receptor for the FimH lectin adhesin of type 1-fimbriated Escherichia coli, the organism that causes a great majority of urinary tract infections, the glycan structure of this native receptor was unknown. Using a sensitive approach that combines in-gel glycosidase and protease digestions, permethylation of released glycans, and mass spectrometry, we have elucidated for the first time the native glycoform structures of the mouse UPIa receptor and those of its non-binding homolog, UPIb, and have determined the glycosylation site occupancy. …
In Situ Sum Frequency Generation Vibrational Spectroscopy Observation Of A Reactive Surface Intermediate During High-Pressure Benzene Hydrogenation, Kaitlin M. Bratlie, Lucio D. Flores, Gabor A. Somorjai
In Situ Sum Frequency Generation Vibrational Spectroscopy Observation Of A Reactive Surface Intermediate During High-Pressure Benzene Hydrogenation, Kaitlin M. Bratlie, Lucio D. Flores, Gabor A. Somorjai
Kaitlin M. Bratlie
Sum frequency generation surface vibrational spectroscopy and kinetic measurements using gas chromatography have been used to identify a reactive surface intermediate in situ during hydrogenation of benzene on a Pt(111) single crystal surface at Torr pressures. Upon adsorption at 310 K, both chemisorbed and physisorbed benzene coexist on the surface, a result which has not previously been observed. Kinetic measurements show a linear compensation effect for the production of both cyclohexane and cyclohexene. From these data the isokinetic temperature was identified and correlated to the chemisorbed benzene species, which were probed by means of vibrational spectroscopy. Additionally, chemisorbed benzene was …
Mid-Ir Biosensor: Detection And Fingerprinting Of Pathogens On Gold Island Functionalized Chalcogenide Films, Chenxu Yu, Ashtosh Ganjoo, H. Jain, C. G. Pantano, Joseph Irudayaraj
Mid-Ir Biosensor: Detection And Fingerprinting Of Pathogens On Gold Island Functionalized Chalcogenide Films, Chenxu Yu, Ashtosh Ganjoo, H. Jain, C. G. Pantano, Joseph Irudayaraj
Chenxu Yu
Antibody (human IgG, anti-E. coli O157:H7, and anti-Salmonella) complexes on the surface of IR-transparent Ge-containing chalcogenide glass films were formed via thiol chemistry on 20-nm-thick gold islands. As a first step, the protocol was validated by monitoring fluorescently tagged targets to validate binding. FT-IR spectroscopy confirmed that the coating of the films with 20-nm gold did not have a significant effect on the propagation and penetration of IR evanescent waves through the film. The films functionalized with anti-E. coli O157:H7 and anti-Salmonella antibodies were used to detect E. coli O157:H7 and S. enteriditis through label-free IR fingerprinting. Highly selective detection …
An Adaptive System Identification Model Of The Biomechanical Response Of The Human Trunk During Sudden Loading, Brad M. Lawrence, Gregory D. Buckner, Gary A. Mirka
An Adaptive System Identification Model Of The Biomechanical Response Of The Human Trunk During Sudden Loading, Brad M. Lawrence, Gregory D. Buckner, Gary A. Mirka
Gary A. Mirka
Sudden loading injuries to the low back are a concern. Current models are limited in their ability to quantify the time-varying nature of the sudden loading event. The method of approach used six males who were subjected to sudden loads. Response data (EMG and kinematics) were input into a system identification model to yield time-varying torso stiffness estimates. The results show estimates of system stiffness in good agreement with values in the literature. The average root mean square error of the model’s predictions of sagittal motion was equal to 0.1deg. In conclusion, system identification can be implemented with minimal error …
The Effects Of Aging On Controlled Attention And Conflict Processing In The Stroop Task, Robert West
The Effects Of Aging On Controlled Attention And Conflict Processing In The Stroop Task, Robert West
Robert West
Recent computational modeling and behavioral work indicate that age-related declines in the ability to represent task context may contribute to disruptions of working memory and selective attention in older adults. However, it is unclear whether age-related declines in context processing arise from a disruption of the encoding or maintenance of task context and how age-related declines in context processing interact with mechanisms supporting conflict detection and resolution processes contributing to efficient selection of task-relevant information. This study examines the effects of aging on the neural correlates of context and conflict processing in the Stroop task using event-related brain potentials (ERPs). …
Stability Of The Gyroid Phase In Diblock Copolymers At Strong Segregation, Eric W. Cochran, Carlos J. Garcia-Cervera, Glenn H. Fredrickson
Stability Of The Gyroid Phase In Diblock Copolymers At Strong Segregation, Eric W. Cochran, Carlos J. Garcia-Cervera, Glenn H. Fredrickson
Eric W. Cochran
The gyroid phase in diblock copolymers at strong segregation was stabilized. The intriguing topology of the network structure has inspired a diverse array of potential applications ranging from high-performance separation membranes to photonic crystals. The pressure field enforces incompressibility, while the exchange field is conjugate to the composition pattern in the melt. The Laplacian operator is treated implicitly with a fourth-order backward differentiation formula (BDF4), whereas the source term is discretized explicitly using fourth-order accurate Adams-Bashford.
Tillage And Crop Rotation Effects On Dryland Soil And Residue Carbon And Nitrogen, Upendra M. Sainju, Andrew W. Lenssen, Thecan Caesar-Tonthat, Jed Waddell
Tillage And Crop Rotation Effects On Dryland Soil And Residue Carbon And Nitrogen, Upendra M. Sainju, Andrew W. Lenssen, Thecan Caesar-Tonthat, Jed Waddell
Andrew W. Lenssen
Sustainable management practices are needed to enhance soil productivity in degraded dryland soils in the northern Great Plains. We examined the effects of two tillage practices [conventional till (CT) and no-till (NT)], five crop rotations [continuous spring wheat (Triticum aestivum L.) (CW), spring wheat-fallow (W-F), spring wheat-lentil (Lens culinaris Medic.) (W-L), spring wheat-spring wheat-fallow (W-W-F), and spring wheat-pea (Pisum sativum L.)-fallow (W-P-F)], and a Conservation Reserve Program (CRP) on plant biomass returned to the soil, residue C and N, and soil organic C (SOC), soil total N (STN), and particulate organic C and N (POC and PON) at the 0- …
Determination Of 2-Alkylcyclobutanones With Electronic Impact And Chemical Ionization Gas Chromatography/Mass Spectrometry (Gc/Ms) In Irradiated Foods, Peter Horvatovich, Dalal Werner, Stéphanie Jung, Michel Miesch, Henry Delincee, Claude Hasselmann, Eric Marchioni
Determination Of 2-Alkylcyclobutanones With Electronic Impact And Chemical Ionization Gas Chromatography/Mass Spectrometry (Gc/Ms) In Irradiated Foods, Peter Horvatovich, Dalal Werner, Stéphanie Jung, Michel Miesch, Henry Delincee, Claude Hasselmann, Eric Marchioni
Stéphanie Jung
The use of a column containing 60 g of silica gel for cleanup and the use of isobutane as a reactant reagent for chemical ionization-mass spectrometric analysis of the saturated and monounsaturated alkyl side-chain 2-alkylcyclobutanones (2-ACBs; specifically induced by irradiation from fat in foods until the proof of contrary) has improved both the sensibility and the selectivity of the method when applied for the detection of irradiated foods. The quality of the chromatograms obtained was improved, allowing the detection of food samples (avocados) irradiated at low doses (0.1 kGy) or irradiated ingredients included in low proportions (less than 5%, wt/wt) …
Corrugation And Buckling Defects In Wound Rolls, Jonathan A. Wickert, P.M. Lin
Corrugation And Buckling Defects In Wound Rolls, Jonathan A. Wickert, P.M. Lin
Jonathan A. Wickert
Sheet metal, paper, and polymer webs are often stored and processed as large rolls comprising thousands of layers. Depending on the elastic properties of the web material, the roll's dimensions, the type of core, and the winding tension, the stresses that develop within the roll can be sufficiently high to cause local or gross buckling defects to form. For instance, the cylindrical core onto which the web is wound can collapse, a failure mode that is termed "v-buckling." In other cases, while the core might remain intact, a group of layers interior to the roll can wrinkle into a near-sinusoidal …
Exports And Slow Economic Growth In The Lower South Region, 1720–1800, Peter C. Mancall, Joshua L. Rosenbloom, Thomas Weiss
Exports And Slow Economic Growth In The Lower South Region, 1720–1800, Peter C. Mancall, Joshua L. Rosenbloom, Thomas Weiss
Joshua L. Rosenbloom
For the past generation scholars have emphasized that the Lower South was one of the most economically successful regions of British mainland North America, and perhaps the most successful. Planters, the primary economic actors, made extensive use of slave labor and created a successful staple-export sector, which by 1774 produced the highest levels of private wealth per capita in the colonies. Focusing on the rapid growth of the primary exports of the Lower South in the colonial period – rice and indigo – most scholars have concluded that standards of living for colonists in the region must have been rising …
Modeling Energetics And Noise In Dislocation Patterning, Robb Thomson, M. Koslowski, Richard Alan Lesar
Modeling Energetics And Noise In Dislocation Patterning, Robb Thomson, M. Koslowski, Richard Alan Lesar
Richard Alan Lesar
We explore the underlying physics of dislocation ordering in deforming metals, where we focus on the competing role of energy relaxation and the fluctuations (noise) in the local stress field. We investigate the competition by employing a simple two-dimensional model that exhibits the essential physics, while avoiding extraneous mechanisms that might cloud the issues. We show that noise and energetics are equally important in determining the final state of the system. Quantitative functions for the energetic driving force for ordering and the resistive force owing to the noise are developed that balance one another at the relaxed state. These features …
Trapezoidal Phase-Shifting Method For Three-Dimensional Shape Measurement, Peisen S. Huang, Song Zhang, Fu-Pen Chiang
Trapezoidal Phase-Shifting Method For Three-Dimensional Shape Measurement, Peisen S. Huang, Song Zhang, Fu-Pen Chiang
Song Zhang
We propose a novel structured light method, namely a trapezoidal phase-shifting method, for 3-D shape measurement. This method uses three patterns coded with phase-shifted, trapezoidal-shaped gray levels. The 3-D information of the object is extracted by direct calculation of an intensity ratio. Compared to traditional intensity-ratio-based methods, the vertical or depth resolution is six times better. Also, this new method is significantly less sensitive to the defocusing effect of the captured images, which makes large-depth 3-D shape measurement possible. If compared to sinusoidal phase-shifting methods, the resolution is similar, but the data processing speed is at least 4.5 times faster. …
Dissemination Of Couples Interventions Among African American Populations: Experiences From Prosaam, Tera R. Hurt, Kameron J. Franklin, Steve R.H. Beach, Velma Mcbride-Murry, Gene H. Brody, Lily D. Mcnair, Frank D. Fincham
Dissemination Of Couples Interventions Among African American Populations: Experiences From Prosaam, Tera R. Hurt, Kameron J. Franklin, Steve R.H. Beach, Velma Mcbride-Murry, Gene H. Brody, Lily D. Mcnair, Frank D. Fincham
Tera R. (Hurt) Jordan
In this article, we discuss successful delivery of culturally sensitive variations of empirically grounded strategies for relationship enhancement and divorce prevention. This discussion focuses on the importance of religious traditions in culturally sensitive marriage enrichment services. In particular, we highlight our ongoing investigation of the Program for Strong African American Marriages (ProSAAM) and share some of our experiences in disseminating ProSAAM to communities in northeast Georgia
College Students' Experiences And Perceptions Of Harassment On Campus: An Exploration Of Gender Differences, Robert D. Reason, Susan R. Rankin
College Students' Experiences And Perceptions Of Harassment On Campus: An Exploration Of Gender Differences, Robert D. Reason, Susan R. Rankin
Robert D Reason
Using a campus climate assessment instrument developed by Rankin (1998), we surveyed students (N = 7,347) from 10 campuses to explore the different experiences with harassment and campus climates reported by men and women. Both men and women reported experiencing harassment, although women experienced harassment at statistically significantly higher rates than men. Women reported higher rates of sexual harassment, while men reported higher rates of harassment based upon sexuality. These findings are understood, and implications are provided, using a lens of power and privilege.