| Effect of Particle Hardness on the Penetration Behavior of Fabrics Intercalated with Dry Particles and Concentrated Particle-Fluid Suspensions |
03-Nov-2009 |
12 pages |
| Authors:
Dennis P Kalman; Richard L Merrill; Norman J Wagner; Eric D Wetzel; DELAWARE UNIV NEWARK
|
 | The penetration behavior of Kevlar fabric intercalated with dry particles and shear thickening fluids (STF), highly concentrated fluid-particle suspensions, is presented. In particular, the role of particle hardness is explored by comparing fabric treatments containing SiO2 particles, which are significantly harder than Kevlar, to treatments containing softer poly(methyl methacrylate) (PMMA) particles. The fabric testing includes yarn pull-out, quasi-static spike puncture, and ballistic penetration resistance, performed on single fabric layers. It ... |
|
| Delaware Consortium for Undergraduate Minority Training in Prostate Cancer |
May-2009 |
9 pages |
| Authors:
Robert A Sikes; David C Usher; DELAWARE UNIV NEWARK
|
| In year 3, we recruited 5 more qualified undergraduate students from Lincoln University and Delaware State University (DSU) to participate in our prostate cancer research and health disparity training program. All students did 10 week, hands on research in laboratories at the University of Delaware (UD) capped by poster presentations in our annual undergraduate research symposium. Faculty from UD gave research talks on prostate cancer and health disparities at Lincoln ... |
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| Embedded Meta-Material Antennas |
31-Jan-2009 |
21 pages |
| Authors:
Dennis W Prather; DELAWARE UNIV NEWARK
|
| With the dawn of the Digital Battlefield, a critical capability in the modern warfare environment is the miniaturization of electronic warfare signal and information processing systems. To realize such systems, the key is to miniaturize antennas that transmit and receive signals. In particular, by introducing reconfigurable antennas, one can combine multiple antennas operating at various frequency bands into a single aperture, which can provide significant miniaturization and flexibility to the ... |
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| Novel Quantitation of Autocrine/Paracrine Stimulation of Cell Motility in Vitro and Metastasis |
Sep-2008 |
15 pages |
| Authors:
Deni S Galileo; DELAWARE UNIV NEWARK
|
| Three established human breast cancer cell lines were analyzed and found to express the L1 adhesion/recognition molecule by immunofluorescence, RT-PCR, and western blotting. Protein expression levels correlated to their known metastatic abilities. Cells released a large soluble proteolytic L1 fragment and tiny L1-containing vesicles into culture media. Breast cancer cells express multiple integrin cell surface receptors that can bind to the released or shed L1. L1 proteolysis can be upregulated ... |
|
| Integrated Molecular Imaging and Therapy for Breast Cancer |
Aug-2008 |
24 pages |
| Authors:
Balaji Panchapakesan; DELAWARE UNIV NEWARK
|
| In this project, we have demonstrated multi-component molecular targeting of surface receptors (IGF1R and Her2) and NIR dosing of cancer cells using SWCNT. While previous studies have shown the transport of DNA into cells using nanotubes, in this study we show multi-component molecular targeting of both IGF1R and Her2 surface markers in cancer cells using single wall carbon nanotubes. IGF1 and Her2 specific antibodies conjugated to the SWCNT were used ... |
|
| Embedded RF Photonic Crystals as Routing and Processing Devices in Naval Aperstructures |
16-May-2008 |
16 pages |
| Authors:
Dennis W Prather; DELAWARE UNIV NEWARK
|
| The ability to rapidly detect and process radio frequency (RF) signals is of extreme importance in the modern warfare environment. As the use of the electromagnetic spectrum continues to expand, the technical requirements necessary to maintain such a critical ability becomes very challenging; additional requirements such as miniaturization of the system, reduction in power consumption and the miniaturization of signatures places even more stringent requirements on an already pressing problem. ... |
|
| Predicting Bone Metastatic Potential of Prostate Cancer via Computational Modeling of TGF-Beta Signaling |
01-May-2008 |
55 pages |
| Authors:
Carlton R Cooper; Baratunde Ogunnaike; DELAWARE UNIV NEWARK
|
| This hypothesis generation project involved the development of a computational model of the TGF-beta signaling pathway and investigating whether such a model can be used to generate hypotheses regarding metastatic potential of prostate cancer (PCa). The primary deliverable of the investigation is a comprehensive quantitative model of TGF-beta signaling that is representative of a wide variety of experimental data collected in different labs worldwide; the primary outcome is the following ... |
|
| Benchmarks for Evaluation of Distributed Denial of Service (DDOS) |
JAN 2008 |
12 pages |
| Authors:
Jelena Mirkovic; DELAWARE UNIV NEWARK
|
| The main goal of our work was to develop the benchmark suite for evaluation of defenses against distributed denial-of-service (DDoS) attacks. The desired features of the benchmark suite were the following: 1. Realistic topologies, legitimate and attack traffic are represented in the suite 2. A wide variety of attack variants is present in the suite 3. Benchmarks can be used by novice experiments easily 4. There is a common, intuitive ... |
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| Milestones Toward 50% Efficient Solar Cell Modules |
Sep-2007 |
7 pages |
| Authors:
Richard Schwartz; Dave Carlson; Stuart Bowden; Dan Aiken; Sarah Kurtz; Tom Moriarty; Jeffery Gray; Tom Davenport; Roger Buelow; Douglas Kirkpatrick; Larry Kazmerski; Laszlo Takacs; Christiana Honsberg; Duncan Moore; Allen Barnett; Mark Wanlass; Myles Steiner; Allen Gray; Keith Emergy; Narkis Shatz; DELAWARE UNIV NEWARK
|
| The Very High Efficiency Solar Cell (VHESC) program is developing integrated optical system - PV modules for portable applications that operate at greater than 50 percent efficiency. We are integrating the optical design with the solar cell design, and have entered previously unoccupied design space. Our approach is driven by proven quantitative models for the solar cell design, the optical design and the integration of these designs. Optical systems efficiency ... |
|
| Integrated Molecular Imaging and Therapy for Breast Cancer |
AUG 2007 |
33 pages |
| Authors:
Balaji Panchapakesan; DELAWARE UNIV NEWARK
|
| In this project, we have demonstrated multi-component molecular targeting of surface receptors (IGF1R and Her2) and NIR dosing of cancer cells using SWCNT. While previous studies have shown the transport of DNA into cells using nanotubes, in this study we show multicomponent molecular targeting of both IGF1R and Her2 surface markers in cancer cells using single wall carbon nanotubes. IGF1 and Her2 specific antibodies conjugated to the SWCNT were used ... |
|
| Embedded Millimeter Wave Photonic Crystals as Processing Elements in Shipboard Superstructures |
JUL 2007 |
13 pages |
| Authors:
Dennis W. Prather; DELAWARE UNIV NEWARK
|
| The ability to rapidly and accurately detect signals is essential in the modern warfare environment. However, the ever increasing use of the spectrum places great demand on current technology and, requires significant technological developments to overcome current limitations. Also, the nearly ubiquitous miniaturization of military systems requires a concomitant reduction in the size of radiating apertures. Therefore, in order to deal with these challenges, advanced artificial materials are used, namely, ... |
|
| Magnetostatically-Coupled Anisotropic Composite Magnets with Enhanced Remanence |
JUL 2007 |
9 pages |
| Authors:
George C. Hadjipanayis; DELAWARE UNIV NEWARK
|
| The computer simulation confirmed a magnetostatic coupling between R-Fe-B matrix and thick Fe layers in hot-deformed composite magnets. However, enhancement in the remanence and maximum energy product of the hard-soft composites requires at least a partial inter-phase exchange coupling. The combination of a complete magnetostatic coupling and a partial exchange coupling may facilitate the development of anisotropic composite magnets with superior performance. The experimental studies found that (1) magneto-statically coupled ... |
|
| Multicolor Nanostructured High Efficiency Photovoltaic Devices |
30 JUN 2007 |
8 pages |
| Authors:
Christiana Honsberg; S. P. Bremner; G. M. Liu; K. Y. Ban; DELAWARE UNIV NEWARK
|
| The goal of the project "Multicolor Nanostructured High Efficiency Photovoltaic Devices," is to experimentally demonstrate the fundamental physical mechanisms required for high performance photovoltaics, focusing on the conditions which maximize simultaneous radiative coupling between multiple energy levels. A material which has multiple quasi-Fermi levels is predicted to display a range of unique properties, including highly nonlinear absorption coefficients which depend on light intensity, absorption and emission properties which can be ... |
|
| (Nanotechnology Iniatitive) Multicolor Nanostructured High Efficiency Photovoltaic Devices |
30 JUN 2007 |
8 pages |
| Authors:
Christiana Honsberg; S. P. Bremner; G. M. Liu; K. Y. Ban; DELAWARE UNIV NEWARK
|
| The goal of the project "Multicolor Nanostructured High Efficiency Photovoltaic Devices," is to experimentally demonstrate the fundamental physical mechanisms required for high performance photovoltaics, focusing on the conditions which maximize simultaneous radiative coupling between multiple energy levels. A material which has multiple quasi-Fermi levels is predicted to display a range of unique properties, including highly nonlinear absorption coefficients which depend on light intensity, absorption and emission properties which can be ... |
|
| A Time Domain Integral Equation Approach to Electromagnetic Interference Simulation |
29 JUN 2007 |
8 pages |
| Authors:
Daniel S. Weile; DELAWARE UNIV NEWARK
|
| The goal of this project, which tasted from June 1, 2004 to May 31, 2007 was to develop new analysis methods for the modeling of broadband electromagnetic radiation in the time-domain useful for solving electromagnetic interference (EMI) problems. The work was based on a new approach for solving time-domain integral cquations (TDIEs) with stability and accuracy, but was soon extended to some other approaches. The results produced by the research ... |
|
| All Electrical Spin Detection in III-V Semiconductors |
02 MAY 2007 |
3 pages |
| Authors:
Ian R. Appelbaum; DELAWARE UNIV NEWARK
|
| The project goal, to demonstrate electrical detection of electron spin transport in a semiconductor, has been met. We have achieved a clear spin-valve effect in an in-plane magnetic field and coherent precession and Hanle effect in a perpendicular magnetic field using a silicon spin transport device. |
|
| Predicting Bone Metastatic Potential of Prostate Cancer Via Computational Modeling of TGF-Beta Signaling |
MAY 2007 |
11 pages |
| Authors:
Carlton R. Cooper; Babtunde Ogunnaike; DELAWARE UNIV NEWARK
|
| We demonstrate that transforming growth factor beta 1 (TGF-1), a common growth factor in the bone marrow, reduces the adhesion of metastatic prostate cancer (PC) cells to bone marrow endothelial cells (BMEC), but increases the adhesion of these same cells to collagen type I, a major component of the bone matrix. Also, we show that metastatic PC cells are inhibited by TGF-1 in a dose dependent fashion. The expression of ... |
|
| Delaware Consortium for Undergraduate Minority Training in Prostate Cancer |
FEB 2007 |
8 pages |
| Authors:
Robert A. Sikes; David Usher; DELAWARE UNIV NEWARK
|
| Six academically qualified students 3 each from Delaware St. University (DSU) and Lincoln University were offered slots in the PCRP program. Five accepted: 3 from Lincoln and 2 from DSU. Students did 10-week research rotations in addition to attending research seminars and roundtable discussions on the basis of health disparities. This latter topic was not in the initial grant but was received favorably. Students presented research posters in a joint ... |
|
| Multifunctional Magnetodielectric Composites for Antenna and High Frequency Applications |
NOV 2006 |
5 pages |
| Authors:
Xiaokai Zhang; Michael C. Golt; Jr. Ekiert Thomas F.; Shridhar Yarlagadda; Karl M. Unruh; John Q. Xaio; DELAWARE UNIV NEWARK
|
| Miniaturization of high frequency antennas while maintaining desirable bandwidth, impedance, and loss characteristics has recently attracted great attention in part due to the development of metamaterials. Ideal magnetodielectric materials should have the largest possible index of refraction which match the impedance of the materials to the environment and improve the antenna bandwidth. One approach to achieve such magnetodielectrics is to embed magnetic materials in a dielectric matrix. In this work, ... |
|
| Passive Synthetic Aperture Array Imaging at Millimeter Wave Frequencies using Novel Electro-optical Detection and Processing |
31 OCT 2006 |
39 pages |
| Authors:
Dennis W. Prather; Mark Mirotznik; DELAWARE UNIV NEWARK
|
| In this effort we have designed, fabricated, and demonstrated a one-dimensional synthetic aperture imaging system for the passive imaging of millimeter waves (MMWs) using optical upconversion and correlation techniques. The advantage of this approach over alternate techniques is that the proposed system does not require expensive high-speed electronic detection and read out circuits and it is light enough to be used on UAV platforms. This technique eliminates the need for ... |
|
| Function of Periecan Domain 1 in Prostate Cancer |
OCT 2006 |
23 pages |
| Authors:
Chu Zhang; Mary C. Farach-Carson; DELAWARE UNIV NEWARK
|
| Preferential metastasis of prostate cancer (PCa) to bone marrow contributes to disease mortality and morbidity. Local factors present in the bone stromal extracellular matrix (ECM) increase metastatic tumor growth through paracrine interactions among tumor, stromal and endothelial cells present in the microenvironment. Heparin binding growth factors (HBGF) present in bone marrow provide growth and survival signals to metastatic PCa cells. Perlecan (Pln), the major heparan sulfate proteoglycan (HSPG) in the ... |
|
| Biomechanical Factors in the Etiology of Tibial Stress Fractures |
AUG 2006 |
157 pages |
| Authors:
Irene S. Davis; DELAWARE UNIV NEWARK
|
| The overall aim of this research is to gain insight into the etiology of tibial stress fractures. Three dimensional motion analysis data along with structural data will be collected from 400 subjects (200 at each site) over a 3-year period. 30 of the subjects will have sustained a tibial stress fracture prior to the study and the other 370 will have not. Subjects will be recruited primarily from track teams, ... |
|
| Carbon Nanotube-Based Composites for Future Air Force and Aerospace Systems |
MAR 2006 |
17 pages |
| Authors:
Erik T. Thostenson; Tsu-Wei Chou; DELAWARE UNIV NEWARK
|
| Nanotubes have been targeted for potential applications ranging from the next generation of computers and flat-panel displays to structural and functional materials. In addition to their well-known stiffness (> 1 TPa) and strength (-30 GPa) properties, carbon nanotubes also possess exceptionally high electrical and thermal conductivities, with the axial thermal conductivity near that of crystalline diamond. The unique mechanical and physical properties of nanotubes offer tremendous opportunity for the development ... |
|
| Function of Perlecan Domain I in Prostate Cancer |
OCT 2005 |
22 pages |
| Authors:
Chu Zhang; Daniel D. Carson; George R. Dodge; Mary C. Farach-Carson; DELAWARE UNIV NEWARK
|
| Perlecan (Pln), the major heparan sulfate proteoglycan (HSPG) in the bone marrow stromal ECM functions as a permissive ECM molecule, or co-receptor, that delivers HBGF's to high affinity receptors. Heparan sulfate chains on Pln are located in a unique N-terminal domain I (PlnDI) which functions as the co-receptor for HBGFs. Our purpose is to study the functions of Pln in prostate cancer cell survival, proliferation and apoptosis. We hypothesize that ... |
|
| Three-Dimensional Nano-Lithography for Emerging Technologies |
27 SEP 2005 |
11 pages |
| Authors:
Dennis W. Prather; DELAWARE UNIV NEWARK
|
| Grayscale lithography has shown particular success in the pursuit of surface machining capabilities because of the flexibility and convenience it offers in the fabrication of arbitrary three-dimensional surfaces. Accordingly, grayscale lithography has been demonstrated for a wide range of applications, including refractive and diffractive optical elements for focusing and beam shaping, optical interconnects, and MEMS. While our original motivation for this research area was the fabrication of three different micro-optical ... |
|
| Application of Nanoparticles/Nanowires and Carbon Nanotubes for Breast Cancer Research |
SEP 2005 |
67 pages |
| Authors:
Balaji Panchapakesan; DELAWARE UNIV NEWARK
|
| The purpose of this research is to develop a new and cost effective technique of monitoring cancer cells at an early stage. Molecular targeting of cancer cells using nanotube electronic device and cell killing using nanotubes has been demonstrated. Variety of techniques such as fabrication of single wall carbon nanotubes, functionalization of nanotubes with antibodies, interaction of cells with antibodies on nanotube surfaces, and finally cell killing using nano-bombs has ... |
|
| Biomechanical Factors in Tibial Stress Fractures |
AUG 2005 |
177 pages |
| Authors:
Irene S. McClay-Davis; DELAWARE UNIV NEWARK
|
| The overall aim of this research is to gain insight into the etiology of tibial stress fractures. Three dimensional motion analysis data along with structural data will be collected from 400 subjects (200 at each site) over a 3-year period. 30 of the subjects will have sustained a tibial stress fracture prior to the study and the other 370 will have not. Subjects will be recruited primarily from track teams, ... |
|
| Fruit Trees and Tamarisk Brooms: Grafting a Unique Perspective of American History in Willa Cather's Death Comes for the Archbishop |
24 MAY 2005 |
12 pages |
| Authors:
Martha J. Despain; DELAWARE UNIV NEWARK
|
| Willa Cather reveals an obsession with both personal and social history in "Death Comes for the Archbishop." She sees the recounting of history, to use Herbert Butterfield's words, as a creative act of translation. Cather challenges received notions of the past, which she sees as being as flawed as memory itself, by writing a revisionist version of American history in this novel. Employing the unique metaphor of grafting fruit trees, ... |
|
| Electromagnetic Inverse Scattering by Partically Coated Targets |
31 DEC 2004 |
4 pages |
| Authors:
Fioralba Cakoni; DELAWARE UNIV NEWARK
|
| The successful use of the linear sampling method to determine the shape of an anisotropic dielectric (possibly) partially coated by a thin layer of highly conductive material. A (possibly) partially coated perfect conductor and a very thin object (screen). The derivation of an explicit formula giving the surface impedance of a partially coated perfect conductor from knowledge of the far field pattern of the scattered electromagnetic wave and an analogous ... |
|
| The Detection of Hostile Structures |
DEC 2004 |
5 pages |
| Authors:
David Colton; Peter B. Monk; DELAWARE UNIV NEWARK
|
| This grant was concerned with the development of the linear sampling method to determine the location and shape of hostile structures hidden in a known background medium from measured electromagnetic scattering data. The research included the numerical investigation of the ultra-weak variational formulation for Maxwell's equations and the solution of the inverse scattering problem for partially coated obstacles. Since it has previously been shown that the scattering due to the ... |
|
| The Ultra High Density Storage of Non-Biological Information in a Memory Composed of DNA Molecules |
DEC 2004 |
3 pages |
| Authors:
Junghuei Chen; Yuzhen Wang; Russell Deaton; DELAWARE UNIV NEWARK
|
| We have designed and performed a proof-of-principle experiment that demonstrates that huge amounts of non-biological, or abiotic, information can be stored in a memory composed of DNA molecules. The preliminary experiment emphasizes on achieving a practical design motivates several fundamental questions such as the amount of information that can be stored in a DNA memory before errors are introduced, and practical and cost-effective ways of mapping abiotic data onto DNA ... |
|
| Design of Large Area PLEDs on Flexible Substrates: Highly Efficient Flexible Devices Using a Statistical Copolymer of Oxadiazole-Containing PPV |
DEC 2004 |
5 pages |
| Authors:
Hermona Y. Christian; Subbu Vaidyanathan; Changhee Ko; Mary E. Galvin; Rick Beyer; DELAWARE UNIV NEWARK
|
| With polymers as the active layer on a plastic substrate, construction of flexible devices is possible, although the use of calcium cathodes places stringent requirements on the encapsulation of the device. Our work focuses on the development of polymers that will function with higher work function cathodes, making encapsulation less problematic. Additionally, we seek to fabricate stable, flexible PLEDs with a simple device configuration for military display applications. To this ... |
|
| Applications of Nanoparticles/Nanowires and Carbon Nanotubes for Breast Cancer Research |
SEP 2004 |
26 pages |
| Authors:
Balaji Panchapakesan; DELAWARE UNIV NEWARK
|
| The purpose of this research is to develop a new technique of using carbon nanotubes for breast cancer detection, diagnosis and killing of cancer cells. This can be achieved by fabrication of single wall carbon nanotubes, separation of carbon nanotubes, fimcfl'onalfzation of antibodies on carbon nanotubes and studying the interaction of carbon nanotubes on cancer cells. This research investigated the effects of ftmctionalization of carbon nanotubes (CNTs) with a primary ... |
|
| Biomechanical Factors in Tibial Stress Fractures |
AUG 2004 |
141 pages |
| Authors:
Irene S. McClay; DELAWARE UNIV NEWARK
|
| The overall aim of this research is to gain insight into the etiology of tibial stress fractures. Three dimensional motion analysis data along with structural data will be collected from 400 subjects (200 at each site) over a 3- year period. 30 of the subjects will have sustained a tibial stress fracture prior to the study and the other 370 will have not. Subjects will be recruited primarily from track ... |
|
| Development and Optimization of a Comprehensive Kinetic Model of Hydrocarbon Fuel Combustion |
26 MAR 2004 |
12 pages |
| Authors:
Hai Wang; DELAWARE UNIV NEWARK
|
| The goal of this research program was to develop a comprehensive, predictive, and detailed kinetic model of hydrocarbon combustion for aero propulsion simulations. Sensitivity analyses were performed to examine the influences of the uncertainty in binary diffusion coefficients on flame simulations. First-principles calculations were carried out to determine the molecular binary diffusion coefficients of H-He, H2-He, H-H2, and H-Ar gas mixtures. This study resulted in an updated transport property library ... |
|
| Mucin (MUC1) Expression and Function in Prostate Cancer Cells |
MAR 2004 |
24 pages |
| Authors:
Daniel D. Carson; DELAWARE UNIV NEWARK
|
| Mucin glycoproteins are highly expressed by many tumors, reduce normal cell-cell and cell-extracellular matrix adhesion and protect cancer cells from attack by the immune system. Mucin expression not only increases, but also changes from a restricted pattern of apical expression to a general distribution over the entire cell surface. In this regard, conversion of prostate epithelium from a highly-organized, growth-controlled phenotype to a highly proliferative, metastatic phenotype is associated with ... |
|
| Design of a Gigabit Optical Network Interface Card and Layout Methodology for High-Voltage Drivers in Large Arrays for Modulators and MEMS Devices |
Jan-2004 |
113 pages |
| Authors:
Premanand Chandramani; DELAWARE UNIV NEWARK
|
| High-speed optical data links enable local area networks (LANs) that operate at data rates above 10Gbps. Various networks, protocol and switch architectures have been proposed that use these links. The optical network interface card (ONIC) is an important component for demonstrating efficient application of these architectures. In this paper, we describe the design of a programmable ONIC that interfaces a 12-channel gigabit parallel optical link module with a 64-bit/66-MHz PCI ... |
|
| Biomechanical Factors in Tibial Stress Fractures |
AUG 2003 |
97 pages |
| Authors:
Irene S. McClay; DELAWARE UNIV NEWARK
|
| The overall aim of this research is to gain insight into the etiology of tibial stress fractures. Three dimensional motion analysis data along with structural data will be collected from 40 subjects (200 at each site) over a 3- year period. 30 of the subjects will have sustained a tibial stress fracture prior to the study and the other 370 will have not. Subjects will be recruited primarily from track ... |
|
| Inert Gas Condensation of Iron and Iron-Oxide Nanoparticles |
2003 |
7 pages |
| Authors:
C. Baker; S. I. Shah; S. K. Hasanain; K. M. Unruh; T. Ekiert; DELAWARE UNIV NEWARK
|
| An inert gas condensation technique has been used to prepare nanometer-sized particles of metallic iron by evaporation and agglomeration in a flowing inert gas stream. The resulting Fe nanoparticles were protected from complete oxidation either by the formation of a thin Fe-oxide surface passivation layer or by immersion in an oil bath. X-ray diffraction and transmission electron microscopy measurements indicated that the nanoparticles were typically between 10 and 20 nm ... |
|
| Mucin (MUC1) Expression and Function in Prostate Cancer Cells |
SEP 2002 |
30 pages |
| Authors:
Daniel D. Carson; DELAWARE UNIV NEWARK
|
| Mucin glycoproteins are highly expressed by many tumors, reduce normal cell-cell and cell-extracellular matrix adhesion and protect cancer cells from attack by the immune system. Mucin expression not only increases, but also changes from a restricted pattern of apical expression to a general distribution over the entire cell surface. In this regard, conversion of prostate epithelium from a highly-organized, growth-controlled phenotype to a highly proliferative, metastatic phenotype is associated with ... |
|
| Sensitivity of Spores to Hydrostatic Pressure: Mechanisms of Activation, Injury and Repair. Phase 1 |
SEP 2002 |
69 pages |
| Authors:
Dallas G. Hoover; Cynthia M. Stewart; Anthony Sikes; C. P. Dunne; DELAWARE UNIV NEWARK
|
| The sensitivity of spores Bacillus subtilis 168 a,id Clostridium sporogenes PA3679 to the effects of pressure (4,000 atmospheres) alone and in combination with nisin, temperature and pH were determined. The results showed that PA3679 spores were more resistant to nisin than B. subtilis 168 but were more sensitive to the combined effects of pressure, elevated temp. and reduced pH. Pressure oscillations of spores' suspensions did not result in a significant ... |
|
| Biomechanical Factors in the Etiology of Tibial Stress Fractures |
AUG 2002 |
59 pages |
| Authors:
Irene M. Davis; DELAWARE UNIV NEWARK
|
| The overall aim of this research is to gain insight into the etiology of tibial stress fractures. Three dimensional motion analysis data along with structural data will be collected from 400 subjects (200 at each site) over a 3- year period. 30 of the subjects will have sustained a tibial stress fracture prior to the study and the other 370 will have not. Subjects will be recruited primarily from track ... |
|
| High Performance (Nd,Pr)-(Fe,Co)-B Magnets |
31 MAY 2002 |
5 pages |
| Authors:
George C. Hadjipanayis; DELAWARE UNIV NEWARK
|
| This project was focused on the advanced Nd(Pr)-Fe-B based magnets. The aim of this study was twofold: (1) to develop high performance nanocomposite R2Fe14B/alpha-Fe magnets through adjustments in chemical compositions and processing conditions; and (2) to investigate the effect of small substitutions on the coercivity of the higher energy product (BH)m Nd-Fe-B sintered magnets in an attempt to increase their coercivity without decreasing much their remanent magnetization. The studies on ... |
|
| Magnets for High Temperature Applications |
20 FEB 2002 |
14 pages |
| Authors:
George Hadjipanayis; Karl Unruh; John Xiao; DELAWARE UNIV NEWARK
|
| The aim of this work was to develop high temperature magnets to be used in an electromagnetic system for the "More Electric Plane" applications. The desired operating temperature T(op) was 45O0 deg C for permanent magnets and 65O0 deg C for soft magnets. |
|
| Indian Scientist Visit Support Coordination for Visiting Scientists US- Indo Program |
18 JAN 2002 |
2 pages |
| Authors:
David L. Kirchman; DELAWARE UNIV NEWARK
|
| This grant facilitated the visits of Indian scientists to laboratories in the U.S.. The purpose of this program was to provide a cost- effective mechanism for bringing scientists over from India for extended visits to various labs around the United States. The program was started at the request of Dr. Bernard J. Zahuranec, a ONR program officer at the time. The program covered the travel and living expenses of each ... |
|
| Sol-Gel Synthesis and Characterization of Neodymium-Ion Doped Nanostructured Titania Thin Films |
NOV 2001 |
|
| Authors:
Andrew Burns; W. Li; C. Baker; S. I. Shah; DELAWARE UNIV NEWARK
|
 | Nd doped TiO2 nanostructured thin films were prepared by sol-gel technique on quartz and Si substrates using TiCl4 precursor. As-deposited amorphous films were annealed to form anatase phase in the thin films. The film grain size increased with annealing temperature. Above 800 deg C, rutile began to segregate and the grain size decreased slightly. The photodegradation of 2-chlorophenol (2-CP) was studied. Doping TiO2 with Nd(+3) reduced the photodegradation time. The ... |
|
| Mucin (MUC1) Expression and Function in Prostate Cancer Cells |
SEP 2001 |
19 pages |
| Authors:
Daniel D. Carson; DELAWARE UNIV NEWARK
|
| Mucin glycoproteins are highly expressed by many tumors, reduce normal cell-cell and cell-extracellular matrix adhesion and protect cancer cells from attack by the immune system. Mucin expression not only increases, but also changes from a restricted pattern of apical expression to a general distribution over the entire cell surface. In this regard, conversion of prostate epithelium from a highly-organized, growth-controlled phenotype to a highly proliferative, metastatic phenotype is associated with ... |
|
| Biomechanical Factors in Tibial Stress Fracture |
AUG 2001 |
75 pages |
| Authors:
Irene S. McClay; DELAWARE UNIV NEWARK
|
| The overall aim of this research is to gain insight into the etiology of tibial stress fractures. Three dimensional motion analysis data along with structural data will be collected from 400 subjects (200 at each site) over a 3- year period. 30 of the subjects will have sustained a tibial stress fracture prior to the study and the other 370 will have not. Subjects will be recruited primarily from track ... |
|
| Acoustic Gas Resonators for Measurement of Thermophysical Properties and Thermometry |
04 JUN 2001 |
|
| Authors:
James B. Mehl; DELAWARE UNIV NEWARK
|
| Gas-filled cavity resonators can be used to measure the speed of sound c, the viscous diffusivity D(sub v), and the thermal diffusivity D(sub t). The relative sensitivity of a complex resonance frequency to these parameters depends on the shape of the resonator and choice of mode. Different choices are appropriate for different measurements. Spherical acoustic resonators are excellent for very high-precision measurements of the speed of sound in dilute gases. ... |
|
| Osteopontin Ribozymes in Prostate Cancer Cells: Application to Bony Metastases |
MAY 2001 |
57 pages |
| Authors:
Cindy Farach-Carson; DELAWARE UNIV NEWARK
|
| Bone represents a common Site for metastasis of prostate cancer cells, where the invading cells find themselves in an environment rich in factors which promote cancer growth and progression. Genetic changes occur during disease progression in bone which include both gene mutation and changes in the pattern of gene expression. These genetic alterations provide targets for new "molecular drugs' for metastatic prostate cancer, This project will investigate the role of ... |
|
Reports by Corporate Author
