gebhart/patrepeval huggingface dataset:
Comparison of experimental and theoretical results of the motions of a McCabe wave pump (2001)

Results of two separate studies of the McCabe Wave Pump (MWP), one experimental and the other theoretical, are presented. The MWP is an articulated-barge system consisting of three barges. Water pumps are driven by the relative pitching motions of the barges in ocean waves. The high-pressure water that is produced can be used to produce potable water or electricity. In the experimental study, it was observed that the inertial-damping plate acted as a pendulum. It was also observed that the phases of the pitching motions of the barges was such that the relative pitching motions were enhanced by the pendulum effect at all of the wave periods studied. Hence, the increased angular displacements produced greater pump strokes and, in turn, would produce higher than expected volume rates of pumped water. The experiment was analyzed theoretically by the first author, and the theory was found to predict the pendulum effect. In addition, the theory predicted that the after barge motions were significantly less than those of the forward barge, as was observed in the experimental study. The good agreement between the two data sets gives confidence in the ability of the theory to predict the performance of the MWP prototype. (au)
Analysis of Cardiopulmonary Transit Times at Contrast Material–enhanced MR Imaging in Patients with Heart Disease (2003)

Transit times measured with MR imaging may help in discrimination between patients with and patients without heart disease, independently of other cardiac functional parameters.
Multiple ARQ processes for MIMO systems (2003)

We propose a new Automatic Retransmission reQuest (ARQ) scheme for MIMO systems with multiple transmit and receive antennas. The substreams emitted from various transmit antennas encounter distinct propagation channels and thus have different error statistics. Using per-antenna encoders, separating ARQ processes among the substreams results in a throughput improvement. Moreover, it facilitates the interference cancellation in certain MIMO techniques. Quantitative results from UMTS simulations demonstrate that the proposed multiple ARQ structure yields more than 30% gain in link throughput.
Translation Lookaside Buffer Synchronization in a Multiprocessor System. (1988)

Most current computer architectures use a high−speed cache to translate user virtual addresses into physical memory addresses. On machines that require software to imple-ment cache fills and invalidations, the software task is fairly straightforward. In a multi−processor multi−cache configuration, however, where processes are allowed to migrate across processors, there is an inherant synchronization problem, as well as per-formance issues. This paper discusses a solution to these issues that is general enough to implement with-out specialized hardware, yet offers good performance. 1.
Role of Cytokines in the Pathogenesis and Suppression of Thyroid Autoimmunity (2011)

Autoimmune thyroid diseases (AITD) are one of the most common organ-specific autoimmune disorders, of which Hashimoto's thyroiditis (HT) and Graves' disease (GD) are 2 of the most common clinical expressions. HT is characterized by hypothyroidism that results from the destruction of the thyroid by thyroglobulin-specific T cell-mediated autoimmune response. In contrast, GD is characterized by hyperthyroidism due to excessive production of thyroid hormone induced by thyrotropin receptor-specific stimulatory autoantibodies. Cytokines play a crucial role in modulating immune responses that affect the balance between maintenance of self-tolerance and initiation of autoimmunity. However, the role of cytokines is often confusing and is neither independent nor exclusive of other immune mediators. A regulatory cytokine may either favor induction of tolerance against thyroid autoimmune disease or favor activation and/or exacerbation of autoimmune responses. These apparently contradictory functions of a given cytokine are primarily influenced by the nature of co-signaling delivered by other cytokines. Consequently, a thorough understanding of the role of a particular cytokine in the context of a specific immune response is essential for the development of appropriate strategies to modulate cytokine responses to maintain or restore health. This review provides a summary of recent research pertaining to the role of cytokines in the pathogenesis of AITD with a particular emphasis on the therapeutic applications of cytokine modulation.
The Bis-chloromethylation of Aromatic Compounds (1950)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Bis-chloromethylation of Aromatic CompoundsJ. H. Wood, M. A. Perry, and C. C. TungCite this: J. Am. Chem. Soc. 1950, 72, 7, 2989–2991Publication Date (Print):July 1, 1950Publication History Published online1 May 2002Published inissue 1 July 1950https://doi.org/10.1021/ja01163a051Request reuse permissionsArticle Views448Altmetric-Citations25LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (393 KB) Get e-Alertsclose Get e-Alerts
Pulsed liquid-injection metalorganic chemical vapor deposition of (La0.7Sr0.3MnO3/SrTiO3)15 superlattices (2001)

( La 0.7 Sr 0.3 MnO 3 / SrTiO 3 ) 15 superlattices have been grown by pulsed liquid-injection metalorganic chemical vapor deposition on monocrystalline substrates such as LaAlO3, SrTiO3, and MgO. The pulsed-injection technique allows one to control precisely the amount of precursors delivered to the deposition chamber and thus the thickness of each individual layer. The period of the superlattices depends indeed linearly on the number of injected droplets. In our deposition conditions, the average growth rates are ∼0.130 nm/injection for La0.7Sr0.3MnO3 and 0.042 nm/injection for SrTiO3, with no significant difference as regard to the substrate used. The strain’s state of the superlattices depends on the relative thicknesses of the La0.7Sr0.3MnO3 and SrTiO3 layers and also on the substrate used. Finally, the deposition of superlattices with ultrathin interlayers of few unit cells has been demonstrated.
Nitric Oxide Reduction on Copper-Nickel Catalysts (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNitric Oxide Reduction on Copper-Nickel CatalystsGeorge L. Bauerle, Lee L. C. Sorensen, and Ken NobeCite this: Ind. Eng. Chem. Prod. Res. Dev. 1974, 13, 1, 61–64Publication Date (Print):March 1, 1974Publication History Published online1 May 2002Published inissue 1 March 1974https://pubs.acs.org/doi/10.1021/i360049a012https://doi.org/10.1021/i360049a012research-articleACS PublicationsRequest reuse permissionsArticle Views150Altmetric-Citations3LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
Cell-Binding Domain Context Affects Cell Behavior on Engineered Proteins (2004)

A family of artificial extracellular matrix proteins developed for application in small-diameter vascular grafts is used to examine the importance of cell-binding domain context on cell adhesion and spreading. The engineered protein sequences are derived from the naturally occurring extracellular matrix proteins elastin and fibronectin. While each engineered protein contains identical CS5 cell-binding domain sequences, the lysine residues that serve as cross-linking sites are either (i) within the elastin cassettes or (ii) confined to the ends of the protein. Endothelial cells adhere specifically to the CS5 sequence in both of these proteins, but cell adhesion and spreading are more robust on proteins in which the lysine residues are confined to the terminal regions of the chain. These results may be due to altered protein conformations that affect either the accessibility of the CS5 sequence or its affinity for the alpha(4)beta(1) integrin receptor on the endothelial cell surface. Amino acid choice outside the cell-binding domain can thus have a significant impact on the behavior of cells cultured on artificial extracellular matrix proteins.
Expression of the Chemokine Monocyte Chemoattractant Protein-1 and Its Receptor Chemokine Receptor 2 in Human Crescentic Glomerulonephritis (2000)

Crescents are morphologic manifestations of severe glomerular injury. Several chemokines and their receptors have been demonstrated to be involved in animal models of crescentic glomerulonephritis (cGN) and are potential targets for therapeutic interventions. Therefore, the expression of monocyte chemoattractant protein-1 (MCP-1), its receptor chemokine receptor 2B (CCR2B), and CCR5 in human cGN was studied. MCP-1 and CCR2B mRNA expression was evaluated, by in situ hybridization, in serial sections of 23 renal biopsies from patients with cGN. T cells, macrophages, and CCR5-expressing cells were examined by immunohistochemical analysis. MCP-1 mRNA was expressed by cells in crescents, parietal epithelium, and tubular epithelium, as well as by infiltrating leukocytes in the tubulointerstitium. The expression of CCR2B mRNA was observed in cells in glomeruli and crescents and in infiltrating leukocytes in the tubulointerstitium. CCR2B mRNA expression could not be clearly localized to intrinsic renal cells; evidence that most of the CCR2B-expressing cells were leukocytes is provided. CD3-positive T cells formed the major part of the interstitial cell infiltrates but were rare within the glomerular tufts. CD68-positive macrophages constituted a major population of infiltrating cells in crescents and contributed significantly to the interstitial infiltrates. The number of glomerular macrophages was associated with the number of MCP-1- and CCR2B-positive glomerular cells. Expression of CCR2B was significantly correlated with interstitial CD3-positive T cells. CCR5 expression was restricted to infiltrating leukocytes and was correlated quantitatively and by localization with interstitial CD3-positive T cells and CD68-positive macrophages. These first morphologic data on the distribution of CCR2-positive cells in human cGN suggest differential effects of chemokines and their receptors on the distribution of infiltrating leukocytes in different compartments of the kidney.
The development of the birdcage resonator: a historical perspective (2009)

The author gives a personal account of the development of the birdcage resonator while he worked at GE Medical Systems. The emphasis is on promoting an intuitive understanding of the underlying principles of RF coil design by recounting the assumptions, misconceptions, and reasoning involved in addressing the challenging problems in a new field of technology. Topics covered include the historic context of early MRI development, the critical role of RF coil technology in high field imaging, the need for an RF shield, the importance of distributed capacitance, the scientific controversies over magnetic field strength for imaging, a comparison of the birdcage design to an earlier Technicare phased coil, the distribution of electric fields in birdcage resonators, and the limitations of birdcages at very high fields. The author often cites less well-known patent literature on RF coil technology.
Instrumentation for the remote monitoring of physiological and behavioral variables (1998)

Few commercial products are available for investigators who wish to monitor multiple physiological and behavioral variables in unrestrained subjects. When telemetry is not practical, e.g., in studies of at-sea diving physiology, one of the only options is to design and build a custom data-logging instrument. This paper describes how a data logger was developed for the successful long-term monitoring of dive depth, swim speed, heart rate, water temperature, and multiple body temperatures from free-ranging northern elephant seals. The task was facilitated by using a commercially available single-board computer designed specifically for portable multichannel data acquisition and, where possible, off-the-shelf sensors/transducers available with integrated signal-conditioning circuits. A smaller data logger for monitoring the electrocardiogram, body temperature, and dive behavior of double-crested cormorants is also described to illustrate the flexibility and simplicity of this approach. Although it is customized for diving animals, with incorporation of the appropriate sensors the basic design should be applicable to studies of comparative, environmental, or exercise physiology involving most medium-to-large animals, including humans.
PCP Flowdata Option (2013)

This document defines a mechanism for a host to signal flow
characteristics to the network, and the network to signal its ability
to accommodate that flow back to the host. The mechanism defines a new
PCP option for the existing MAP and PEER opcodes.
Grayscale Enhancement Colorization Network for Visible-Infrared Person Re-Identification (2021)

Visible-infrared person re-identification (VI-ReID) is an emerging and challenging cross-modality image matching problem because of the explosive surveillance data in night-time surveillance applications. To handle the large modality gap, various generative adversarial network models have been developed to eliminate the cross-modality variations based on a cross-modal image generation framework. However, the lack of point-wise cross-modality ground-truths makes it extremely challenging to learn such a cross-modal image generator. To address these problems, we learn the correspondence between single-channel infrared images and three-channel visible images by generating intermediate grayscale images as auxiliary information to colorize the single-modality infrared images. We propose a grayscale enhancement colorization network (GECNet) to bridge the modality gap by retaining the structure of the colored image which contains rich information. To simulate the infrared-to-visible transformation, the point-wise transformed grayscale images greatly enhance the colorization process. Our experiments conducted on two visible-infrared cross-modality person re-identification datasets demonstrate the superiority of the proposed method over the state-of-the-arts.
High extinction switching of SOAs for in-band crosstalk reduction in PON (2008)

Burst-mode operation in next-generation large-split, long-reach 10 Gbit/s passive optical networks (PONs) poses challenging requirements on optical network unit (ONU) design. One critical requirement in high-split networks is to suppress the ONU off-state emissions sufficiently to prevent penalties arising from in-band crosstalk. Proposed and demonstrated is the use of semiconductor optical amplifiers (SOAs) to provide this high-extinction ONU gating function. A novel experimental technique for accurate characterisation of the dynamic extinction introduced by the SOAs is described, which is based on the bit error rate penalty induced by the interference from the SOA off-state emissions. The experimental results indicate that the proposed ONU design can allow the operation of PONs with 512-way splits.
Synthesis and Properties of Ethylene-Butene-1 Block Copolymers (1971)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and Properties of Ethylene-Butene-1 Block CopolymersJohn Carl Falk and R. J. SchlottCite this: Macromolecules 1971, 4, 2, 152–154Publication Date (Print):March 1, 1971Publication History Published online1 May 2002Published inissue 1 March 1971https://pubs.acs.org/doi/10.1021/ma60020a004https://doi.org/10.1021/ma60020a004research-articleACS PublicationsRequest reuse permissionsArticle Views190Altmetric-Citations31LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
A robust fine granularity scalability using trellis based predictive leak (2003)

Recently, the MPEG-4 committee has approved the MPEG-4 Streaming Video Profile (SVP) that includes the Fine Granularity Scalability (FGS) as a new coding tool. In this paper, we propose novel techniques to further improve the temporal prediction schemes at the enhancement layer so that both the coding efficiency and error resilience are superior to the existing FGS while the fine granularity scalability is preserved. Our approach utilizes two parameters, the number of bitplanes /spl beta/(0/spl les/ /spl beta//spl les/maximal number of bitplanes) and the amount of predictive leak /spl alpha/ (0/spl les//spl alpha//spl les/1), to control the construction of the reference frame at the enhancement layer. These parameters /spl alpha/ and /spl beta/ can be temporally selected to provide tradeoffs between coding efficiency, error propagation and the predictive drift. It also encompasses several well-known FGS techniques as special cases for particular sets of /spl alpha/ and /spl beta/. The experimental results show over 2 dB improvement in coding efficiency using the MPEG-4 testing conditions.
Integrated fabrication process for solid oxide fuel cells using novel plasma spraying (1992)

This study was aimed at developing an integrated fabrication process for solid oxide fuel cells (SOFC) with radio-frequency plasma spraying (RFPS) and/or hybrid plasma spraying (HYPS). Fundamental studies concerning particle velocity and deformation showed that the novel plasma spraying processes were mainly characterized by their superior capability for homogeneous heating and spraying of large size powders with relatively low particle velocity, and that even the lower particle velocities in RFPS (20 m s-1) and HYPS (40-70 m s-1) compared with those in direct current plasma spraying (200 m s-1) were found to be sufficient for deformation of impinging molten particles on the substrate. However, RFPS imposed as a severe limitation on the substrate position because it led to a short flying distance for the molten particles. In this respect, HYPS was considered to be superior to RFPS.
Effect of Sesbania green-manure and nitrogen fertilizer in rice (Oryza sativa)-wheat (Triticum aestivum) cropping system (1995)

An experiment was conducted during 1989-90 and 1990-91 to study the effect of summer green-manuring with 2 species of Sesbania, viz S. cannabina (Retz.) Pers. and S. rostrata Berm., and nitrogen in rice (Oryza sativa L.)-wheat (Triticum aestivum L. emend. Fiori & Paol.) cropping system. S. cannabina added 7.4 tonnes/ha dry biomass containing 186 kg N/ha and S. rostrata added 8.5 tonnes/ha biomass containing 252 kg N/ha. N available to rice crop from S. rostrata was equivalent to 80 kg urea N. Highest rice (7 180 kg/ha) and wheat (3 549 kg/ha) yields were obtained from green-manuring with S. rostrata and 120 kg urea N/ha applied to rice crop. In this treatment the total N removal by rice and wheat crops was 179 kg/ha. This treatment left positive balance of N (270 kg N/ha) in the soil. The mineralization of N added through Sesbania species was most rapid during the first 20 days after transplanting.
Metformin – its potential anti-cancer and anti-aging effects (2017)

The generally accepted mechanism of metformin's effect is stimulation of adenosine monophosphate (AMP)-activated protein kinase (AMPK). AMPK is directly activated by an increase in AMP:ATP ratio in metabolic stress conditions including hypoxia and glucose deprivation. Lately, many novel pathways, besides AMPK induction, have been revealed, which can explain some of metformin's beneficial effects. It may help to identify new targets for treatment of diabetes and metabolic syndrome. Moreover, metformin is now attracting the attention of researchers in fields other than diabetes, as it has been shown to have anti-cancer, immunoregulatory and anti-aging effects. The aim of this review is to describe the potential anti-cancer and anti-aging properties of metformin and discuss the possible underlying mechanisms.
The Operational Space Formulation implementation to aircraft canopy polishing using a mobile manipulator (2003)

The Operational Space Formulation provides a framework for the analysis and control of manipulator systems with respect to the behavior of their end-effectors. Its application to aircraft canopy polishing is shown using a mobile manipulator. The mobile manipulator end-effector maintains a desired force normal to the canopy surface of unknown geometry in doing a compliant polishing motion, while, at the same time, its mobile base moves around the shop floor, effectively increasing the mobile manipulator's workspace. The mobile manipulator consists of a PUMA 560 mounted on top of a Nomad XR4000. Implementation issues are discussed and simultaneous motion and force regulation results are shown.
Wavelet filtering algorithm for fan-beam CT (1998)

To date, all wavelet computed tomography (CT) work has been based on the assumption of a parallel-beam geometry. The authors directly formulate wavelet CT based on the fan-beam geometry, using recently developed theory for wavelet filtering in filtered backprojection. Experiments with clinical raw projection data demonstrate the feasibility and utility of the approach.