gebhart/patrepeval huggingface dataset:
Dynamic synergy of graphitic nanoplatelets and multi-walled carbon nanotubes in polyetherimide nanocomposites (2010)

Hybridizing graphitic nanoplatelets (GNP) with commercially functionalized multi-walled carbon nanotubes (MWCNTs) in a polyetherimide (PEI) composite at a total loading of 0.5 wt% resulted in considerable improvements in electrical conductivity, thermal conductivity and dynamic mechanical properties, compared to solely GNP or solely MWCNT composites at the same total loading. The results reveal a synergistic interaction between the GNPs and MWCNTs based on GNP protection against fragmentation of the MWCNTs during high power sonication, while still allowing full dispersion of both fillers, by providing a shielding mechanism against MWCNT damage during dispersion processing. A new process for molecular level dispersion of exfoliated GNPs in PEI is also reported. Field emission scanning electron microscopy revealed strong interactions between PEI and the flat surfaces of GNPs and effectively intercalated GNP morphology within the matrix. GNPs alone can also produce excellent electrical conductivity improvements: at 1.0 wt% of GNP, electrical conductivity of the composite increased by 11 orders of magnitude and the percolation threshold was determined to be between 0.5 and 1.0 wt% of GNP.
Compact optical circulator for near-infrared region (1978)

A compact Faraday-rotation 4-port circulator was developed for the near-infrared region. This circulator consists of an yttrium-iron-garnet Faraday rotator, biased by two permanent magnets, and two Glan-Taylor prisms. Insertion losses of 2.7–3.2 dB and isolation ratios of 13–28 dB among non-reciprocal ports were obtained at 1.15μm wavelength.
ChemInform Abstract: Synthesis and Characterization of 5‐Substituted 1,3‐Diazacyclohexane Derivatives. (2000)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Ferrite Phase Shifters in Rectangular Wave Guide (1954)

The problem of the propagation of electromagnetic energy down an infinitely long rectangular wave guide partially filled by a ferrite slab is solved. The solution is expressed in the form of a transcendental equation involving the propagation constant. Calculations are carried out for a lossless ferrite, and the phase constant is evaluated as a function of the appropriate parameters, namely, the ferrite slab thickness, the lateral position of the slab in the guide, and the applied transverse static magnetic field intensity. The results are plotted in graphic form for values of the static magnetic field in the region of ferrite saturation both above and below ferromagnetic resonance. The electromagnetic field configurations within the wave guide are plotted in detail for values of the parameters of practical interest. Two versions of the nonreciprocal phase shifter are discussed. The first consists of a single slab placed asymmetrically in the wave guide, while the second consists of two symmetrically placed slabs with antiparallel static magnetic fields imposed. The nonreciprocal nature is summarized in terms of the differential phase shift β+-β− which is pertinent in applications of this phase shifter.
Borrás, A.A. (ed.). <i>The Theatre and Hispanic Life: Essays in Honour of Neale H. Tayler.</i> Waterloo, Ontario: Wilfrid Laurier University Press, 1982 (1983)

"Borrás, A.A. (ed.). The Theatre and Hispanic Life: Essays in Honour of Neale H. Tayler. Waterloo, Ontario: Wilfrid Laurier University Press, 1982." Canadian Modern Language Review, 40(1), pp. 135–136
NASA Images (2009)

A look at unmanned spacecraft to explore planets is presented. The topics covered include Pioneer 10 and 11, Pioneer-Venus, Voyager, IUE, and HEAO.
Effects of Polymer Network Surfaces on Expansion of Cholesteric Blue Phases Temperature (2008)

We proposed the stabilization of cholesteric blue phases (BPs) by confining liquid crystal (LC) molecules within a small area. The temperature range of the BP was expanded in the LC confined in the polymer network (PN). In particular, the temperature range of BP I in the LC/PN composite is six times wider than that of the pure BP LC compound. Polarizing microscopic observations and field-dependence measurements of the expanded BP have been carried out, which indicate that it is in the metastable state and is induced by the pinning effect on the surfaces of the PN. [DOI: 10.1380/ejssnt.2008.17]
Hyperspectral Imaging for Intelligence, Surveillance, and Reconnaissance (2001)

This paper highlights SSC San Diego contributions to the research and development of hyperspectral technology. SSC San Diego developed the real-time, onboard hyperspectral data processor for automated cueing of high-resolution imagery as part of the Adaptive Spectral Reconnaissance Program (ASRP), which demonstrated a practical solution to broad area search by leveraging hyperspectral phenomenology. The authors explain how the DARPA ASRP successfully demonstrated the capability to detect military targets of interest in real time by using an airborne hyperspectral system to cue high-resolution images for ground analysis. SSC San Diego is now implementing the ASRP algorithm suite on parallel processors, using a portable, scalable architecture that will be remotely accessible. SSC San Diego performed the initial demonstrations that led to the Littoral Airborne Sensor Hyperspectral (LASH) program, which applies hyperspectral imaging to the problem of submarine detection in the littoral zone. These sensors can perform a wide range of ocean sensing tasks. Targets range from submarines and sea mines for military applications, to chlorophyll and sediment load in physical oceanographic applications, to schools of dolphins and whales in marine biology applications. Hyperspectral systems such as LASH are being developed that use spectral and spatial processing algorithms to discern objects and organisms below the sea surface. The performance of such systems depends on environmental and optical properties of the sea. An instrument suite, the Portable Profiling Oceanographic Instrument System (PorPOIS), was developed to ascertain and quantify these environmental and hydro-optic conditions. Under the In-house Laboratory Independent Research (ILIR) program, SSC San Diego has developed new and enhanced methods for hyperspectral analysis and exploitation.
Plasma Grown Particles : From Injected Gases to Nanoparticles and Nanomaterials, from Injected Particles to Dust Clouds in the PKE Experiment (2002)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation P. Roca i Cabarrocas, A. Fontcuberta i Morral, A. V. Kharchenko, S. Lebib, L. Boufendi, S. Huet, M. Mikikian, M. Jouanny, A. Bouchoule; Plasma Grown Particles : From Injected Gases to Nanoparticles and Nanomaterials, from Injected Particles to Dust Clouds in the PKE Experiment. AIP Conf. Proc. 13 December 2002; 649 (1): 45–52. https://doi.org/10.1063/1.1527735 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioAIP Conference Proceedings Search Advanced Search |Citation Search
Proposal of millimeter-wave holographic radar with antenna switching (2002)

This paper proposes a millimeter-wave holographic radar with a simple structure for automotive applications. The simplicity can be realized by switching both transmitting antennas and receiving antennas. Also, a super resolution technique is introduced for the detection of angular positions in the proposed radar. The radar developed experimentally has accomplished an azimuthal angular resolution of less than 2 degrees and an azimuthal field of view (FoV) of more than 20 degrees simultaneously.
Air Flow Measurement for Engine Control (1976)

<div class="htmlview paragraph">A search for improved sensors to measure and control engine parameters has grown from an effort to improve the fuel economy and to lower emissions output of automobile engines. One necessary requirement is the accurate measure of engine intake air. If this can be achieved, then the control system designer will be able to determine the correct amount of fuel to be injected for accomplishment of a desired operation.</div>
A Technique to Measure the Breathing Wave Speed in a Towed Array (1994)

A method is developed for measuring the breathing wave speed in a towed array. The front of the array is longitudinally vibrated, producing aft-traveling wave energy that is detected by measuring the transfer function of a hydrophone channel and a forward bulkhead-mounted accelerometer. The transfer function is composed of two distinct wave types: an extensional wave and a breathing wave. The breathing wavelengths are much shorter than the extensional wavelengths; therefore, the local minimum associated with the first breathing wave null across the hydrophone channel can be identified. Because the frequency at which this null occurs and the length of the hydrophone channel are known, the breathing wave speed can be calculated.
Reduction of body mass and change in body composition on a very low calorie diet. (1993)

The quality of weight loss was estimated during a very low calorie diet (VLCD) weight-reducing regime by determining the body composition every second week using near-infra-red interactance (NII). The study was performed on 127 overweight volunteers, aged 18-72 years, who, for eight consecutive weeks, used a VLCD to lose weight. Mean weight reduction was 12.7 kg (12.6% of initial weight). Mean body fat (BF) loss was 9.5 kg (23.8% of initial BF), which constitutes 75% of the weight loss. Mean reduction in lean body mass (LBM) was 3.2 kg (5.2% of initial LBM). We found no correlation between initial body mass index (BMI) and loss of LBM, or between initial body composition and weight loss. Weight reduction observed in this study is mainly due to reduction in body fat, and the loss of LBM is considered not to be larger than acceptable.
New Sweet Potato Line having low Gelatinization Temperature and altered Starch Structure (2002)

A new sweet potato breeding line, Kanto 116, was developed, featuring low gelatinization temperature and an altered starch fine structure. Starch granules from Kanto 116 showed an abnormal morphology characterized by cracking into granules. Starch content, amylose content and tuberous root appearance of Kanto 116 were similar to those of the control and the parents. Pasting temperatures of Kanto 116 starch determined by the Rapid Visco Analyser were 51.4 — 52.6 °C, approximately 20 °C lower than those of the control and parents starches. Onset, peak, and conclusion temperature of gelatinization, and gelatinization enthalpy of Kanto 116 starch determined by differential scanning calorimetry were 39.0 °C, 46.9 °C, 64.8 °C, and 8.8 J/g, respectively, and much lower than those of the control and parents starches. The chain-length distribution of the amylopectin molecules, determined by high-performance anion-exchange chromatography, showed that Kanto 116 starch had a higher proportion of short chains (DP 6 — 11) and a lower proportion of chains between DP 12 — 28 than control and parent starches. The debranched β-limit dextrin of Kanto 116 starch also showed that the proportion of both short and long B1 chains was different from those of the control and parents starches.
MspA provides the main hydrophilic pathway through the cell wall of <i>Mycobacterium smegmatis</i> (2001)

MspA is an extremely stable, oligomeric porin from Mycobacterium smegmatis that forms water-filled channels in vitro. Immunogold electron microscopy and an enzyme-linked immunosorbent assay demonstrated that MspA is localized in the cell wall. An mspA deletion mutant did not synthesize detectable amounts of mspA mRNA, as revealed by amplification using mspA-specific primers and reverse-transcribed RNA. Detergent extracts of the DeltamspA mutant exhibited a significantly lower porin activity in lipid bilayer experiments and contained about fourfold less porin than extracts of wild-type M. smegmatis. The chromosome of M. smegmatis encodes three proteins very similar to MspA. Sequence analysis of the purified porin revealed that mspB or mspC or both genes are expressed in the DeltamspA mutant. The properties of this porin, such as single channel conductance, extreme stability against denaturation, molecular mass and composition of 20 kDa subunits, are identical to those of MspA. Deletion of mspA reduced the cell wall permeability towards cephaloridine and glucose nine- and fourfold respectively. These results show that MspA is the main general diffusion pathway for hydrophilic molecules in M. smegmatis and was only partially replaced by fewer porins in the cell wall of the DeltamspA mutant [corrected] This is the first experimental evidence that porins are the major determinants of the exceptionally low permeability of mycobacteria to hydrophilic molecules.
Transient life (2006)

Millions of people post personal information on the internet, yet the actual information varies greatly. Some pieces are extremely brief, others are highly detailed. Some focus on the moment to moment changes of one's state and thoughts, others describe stable and long-lasting traits. To handle this diversity, we created Transient Life: a system that lets a person gather personal 'transient' information tidbits on the fly and share this collected information with others. Transient Life is designed as a modular sidebar located on the display's periphery. A person uses its modules to: update momentary personal state (feelings, location, happenings, and thoughts), record activity milestones done over the day as well as a 'to do' list of things left to do, collect interesting URLs and photos seen, and compose text essays of whatever has captured their interest. A person can selectively post this information as a 'today message' to one's community, and the essay to one's personal blog. Information is kept in a History Calendar, which allows one to view the information recorded on a past date.
pAMβ1-Associated Mobilization of Proteinase Plasmids from <i>Lactococcus lactis</i> subsp. <i>lactis</i> UC317 and <i>L. lactis</i> subsp. <i>cremoris</i> UC205 (1990)

A combination of plasmid curing and DNA-DNA hybridization data facilitated the identification of proteinase plasmids of 75 (pCI301) and 35 kilobases (pCI203) in the multi-plasmid-containing strains Lactococcus lactis subsp. lactis UC317 and L. lactis subsp. cremoris UC205, respectively. Both plasmids were transferred by conjugation to a plasmid-free background only after introduction of the conjugative streptococcal plasmid, pAMbeta1. All Prt transconjugants from matings involving either donor contained enlarged recombinant Prt plasmids. UC317-derived transconjugants were separable into different classes based on the presence of differently sized cointegrate plasmids and on segregation of the pCI301-derived Lac and Prt markers. All UC205-derived transconjugants harbored a single enlarged plasmid that was a cointegrate between pCI203 and pAMbeta1. The identification of prt genes on pCI301 and pCI203 derivatives was achieved by a combination of restriction enzyme and hybridization analyses.
Optical properties of electrophoretic image displays (1981)

Those variables determining the optical properties of one type of electrophoretic image display (EPID) are discussed in this paper. The working medium in the EPID with which this paper is concerned is a colloidal suspension of submicron pigment particles in a medium of matching specific gravity and contrasting color. The colloidal suspension is contained between two transparent electrodes. By changing the polarity of the applied voltage, the charged pigment particles may be moved to one or the other electrode. The effects of suspension composition, and the physical and chemical properties of the suspension components are discussed.
Short-Term Triglyceride Lowering With Fenofibrate Improves Vasodilator Function in Subjects With Hypertriglyceridemia (2003)

Vascular smooth muscle function significantly improves after lowering plasma TG without changes in confounding lipoproteins or insulin resistance. The data raise additional questions regarding the role of FFA in hypertriglyceridemia-associated vascular dysfunction.
Preparation and Characterization of Monoclonal Antibody against Protein Tyrosine Phosphatase PRL-3 (2004)

PRL-3 is a newly identified nonclassical protein tyrosine phosphatase associated with colorectal cancer metastasis. To prepare specific monoclonal antibody (MAb) against PRL-3, cDNAs of PRL-1, -2, and -3 were cloned by RT-PCR and inserted into prokaryotic expression vector pGEX-4T1, respectively. The fusion proteins were expressed in Escherichia coli. Monoclonal antibody against PRL-3 was obtained with hybridoma technique and specific ELISA screening. Western blotting and immunohistochemistry assays showed that MAb 3B6 had specific binding ability with PRL-3 protein in eukaryotic cells. This MAb will be a helpful tool for the detection of PRL-3 protein in the tissues and serum of colorectal cancer and other cancer patients.
Requirement for NF-κB in Transcriptional Activation of Monocyte Chemotactic Protein 1 by<i>Chlamydia pneumoniae</i>in Human Endothelial Cells (2000)

Infection with Chlamydia pneumoniae, a causative agent of acute and chronic respiratory diseases, has recently been implicated as a potential risk factor in atherosclerosis. Atherosclerotic lesions are characterized by monocyte infiltration, which may be regulated by the chemokine monocyte chemotactic protein 1 (MCP-1). We have previously shown that C. pneumoniae infection stimulates MCP-1 production in human endothelial cells, an event which may be specific to this species of Chlamydia, since Chlamydia trachomatis infection fails to induce this response. To examine the underlying mechanisms by which C. pneumoniae infection induces MCP-1 production in endothelial cells, the present study investigated the role of transcription factor NF-kappaB in MCP-1 mRNA expression. Human umbilical vein endothelial cells (HUVEC) were infected with the coronary isolate C. pneumoniae A-03 or with C. trachomatis L2, and MCP-1 mRNA expression was assessed after different periods of infection by reverse transcription-PCR. Expression of MCP-1 mRNA in C. pneumoniae-infected HUVEC was significantly elevated as early as 1 h postinfection and increased dramatically by 12 and 24 h compared to baseline controls. Nuclear translocation of NF-kappaB occurred by 30 min of infection, as determined by electrophoretic mobility shift assays and immunofluorescence staining. Treatment of C. pneumoniae-infected HUVEC with parthenolide, a specific inhibitor of NF-kappaB activation, suppressed MCP-1 mRNA expression. In contrast, infection with C. trachomatis L2 did not induce MCP-1 mRNA in infected HUVEC and failed to activate NF-kappaB. Results from this study demonstrate a requirement for NF-kappaB activation in stimulation of MCP-1 gene expression by C. pneumoniae in human endothelial cells. Furthermore, the data suggest that, within the genus Chlamydia, functionally distinct signaling pathways leading to NF-kappaB activation are utilized by C. pneumoniae in endothelial cells during infection.
Pulsed field gradient nuclear magnetic resonance as a tool for studying drug delivery systems (2003)

Abstract Pulsed field gradient (PFG) nuclear magnetic resonance (NMR) is a versatile method for studying molecular transport and exchange in solution. Stejskal‐Tanner diffusion plots can be used to distinguish between chemical species even in the absence of chemical shift or T 1 resolution, provided that certain conditions are satisfied. This can be used advantageously in colloidal drug delivery systems containing two drug populations, free and bound, which often differ only by their diffusion coefficients. We discuss the conditions required for the resolution of the two pools in Stejskal‐Tanner plots, as well as the effects of chemical exchange. We also present two practical examples of this analysis: surfactant micelles containing the general anesthetic propofol and lipid/water liquid crystalline mesophase vehicles (cubosomes). © 2003 Wiley Periodicals, Inc. Concepts Magn Reson Part A 19A: 51–64, 2003.
A Support Vector Machines Approach for Efficient Facial Expression Recognition (2009)

Current scenario in computer vision demands an efficient and robust technique for facial expression recognition. There is also a need for a generalized technique that can even be used for content based image retrieval and analysis. This paper introduces a novel methodology of facial expression recognition using Support Vector Machines. An efficient model is trained and developed using the necessary features extracted by employing 2D Gabor filters. Practically, six different methods for handling the feature vectors are discussed and extensively analyzed in this paper. The developed model is tested and cross validated and the detailed results are presented. It is observed that the proposed method offers a consistent and good accuracy (83.3%) for all the six basic expressions considered. In addition, the implementation complexity is reduced by minimizing the number of support vectors, unlike the traditional counterparts. The proposed method shall definitely turn out to be an effective alternative for the existing methods.
Modeling the finger instability in an expanding cell monolayer (2015)

Collective motion occurs in many biological processes, such as wound healing, tumor invasion and embryogenesis. Experiments of cell monolayer migration have revealed the spontaneous formation of finger-like instabilities, with leader cells at their tips. We present a particle-based model for collective cell migration, based on several elements that have been found experimentally to influence cellular movement. Inside the bulk we include velocity alignment interactions between neighboring cells. At the border contour of the layer we introduce the following additional forces: surface-elasticity restoring force, curvature-dependent positive feedback, and contractile acto-myosin cables. We find that the curvature-driven instability at the layer edge is necessary and sufficient for the formation of cellular fingers, which are in good agreement with experimental observations.
Study of Effects of Sodium Dodecyl Sulphate(SDS)-Induced Skin Irritation on Korea Woman Skin Components Using The Raman Spectroscopy (2018)

In the present study, we investigated the effects of SDS(Sodium dodecyl sulphate)-induced skin irritation on the components of the skin of the Korean woman using Raman spectroscopy. Occlusive patch test of 1% SDS for 24 hours was induced skin irritation and increased transepidermal water loss (TEWL) of 142% and erythema of 61.5% compared to before application, In addition, it was temporarily increases the water content of the skin and reduction of skin thickness, as well as change in skin components such as increase in the NMF, Keratin, and reduction in tUCA_pH4 Ceramide3. The results of this study are considered to be a study to establish a basis for the accuracy and reproducibility data for the skin component analysis of the Raman spectroscopy.