gebhart/patrepeval huggingface dataset:
A Modular-Designed Three-Phase High-Efficiency High-Power-Density EV Battery Charger Using Dual/Triple-Phase-Shift Control (2017)

In this paper, an enhancement-mode GaN high-electron mobility transistor (HEMT)-based 7.2-kW single-phase charger was built. Connecting three such single-phase modules to the three-phase grid, respectively, generates a three-phase ∼22-kW charger with the <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$>{\text{97}}\% $</tex-math></inline-formula> efficiency and <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$>{\text{3.3}}-{\rm{kW}/ \rm{L}}$</tex-math> </inline-formula> power density, superior to present Si-device-based chargers. In addition to GaN HEMTs with fast-switching transitions yielding high efficiency, the proposed charger employs the dc/dc stage to control the power factor and power delivery simultaneously, yielding little dc-bus capacitance and thereby high power density. To secure the soft switching for all switches within full voltage and power ranges, a variable switching frequency control with dual phase shifts was adopted at high power, and a triple phase shift was employed to improve the power factor at low power. Both control strategies accommodated the wide input range (80–260 VAC) and output range (200–450 VDC). A closed-loop control for the three-phase charger was realized to minimize the output current ripple and balance the power among three single-phase modules. Experimental results validated this design.
Intestinal absorption of epoxy-β-carotenes by humans (1999)

An increased intake of fruits and vegetables has been shown to be associated with reduced risk of cancer. In epidemiological studies, supplements of β-carotene, which is abundant in fruits and vegetables, were not found to be beneficial in reducing the incidence of lung cancer in high-risk groups. Epoxycarotenoids are abundant in nature. 5,6-Epoxy-β-carotene was much more active than β-carotene in the induction of differentiation of NB4 cells [Duitsman, Becker, Barua and Olson (1996) FASEB J. 10, A732]. Epoxycarotenes may, therefore, have protective effects against cancer. In order to do this, however, epoxycarotenoids must be absorbed by the human body. There is no evidence that epoxycarotenoids, despite their abundance in dietary fruits and vegetables, are absorbed by humans. In this paper, it is demonstrated that orally administered dietary or synthetic epoxy-β-carotenes are absorbed by humans, as indicated by their appearance in the circulating blood.
Efficient Decomposition of Environmentally Persistent Perfluorooctanesulfonate and Related Fluorochemicals Using Zerovalent Iron in Subcritical Water (2006)

Decomposition of perfluorooctanesulfonate (PFOS) and related chemicals in subcritical water was investigated. Although PFOS demonstrated little reactivity in pure subcritical water, addition of zerovalent metals to the reaction system enhanced the PFOS decomposition to form F-ions, with an increasing order of activity of no metal approximately equal Al < Cu < Zn << Fe. Use of iron led to the most efficient PFOS decomposition: When iron powder was added to an aqueous solution of PFOS (93-372 microM) and the mixture was heated at 350 degrees C for 6 h, PFOS concentration in the reaction solution fell below 2.2 microM (detection limit of HPLC with conductometric detection), with formation of F-ions with yields [i.e., (moles of F- formed)/(moles of fluorine content in initial PFOS) x 100] of 46.2-51.4% and without any formation of perfluorocarboxylic acids. A small amount of CHF3 was detected in the gas phase with a yield [i.e., (moles of CHF3)/(moles of carbon content in initial PFOS) x 100] of 0.7%, after the reaction of PFOS (372 microM) with iron at 350 degree C for 6 h. Spectroscopic measurements indicated that PFOS in water markedly adsorbed on the iron surface even at room temperature, and the adsorbed fluorinated species on the iron surface decomposed with rising temperature, with prominent release of F- ions to the solution phase above 250 degrees C. This method was also effective in decomposing other perfluoroalkylsulfonates bearing shorter chain (C2-C6) perfluoroalkyl groups and was successfully applied to the decomposition of PFOS contained in an antireflective coating agent used in semiconductor manufacturing.
Integer-to-integer shape adaptive wavelet transform for region of interest image coding (2005)

In this paper, we are proposing an integer-to-integer shape adaptive discrete wavelet transform (ISA-DWT) for the region of interest (ROI) coding. ISA-DWT is capable of coding any number of arbitrary shape regions using an integer-to-integer wavelet transform using the lifting scheme. ISA-DWT maintains similar spatial correlation to the actual wavelet transform that allows SPIHT coding. Also, the number of the coefficients in the transform domain using ISA-DWT is equal to the number of pixels contained in the region. The results show that the 5/3 transform has more lossless compression in bit per pixel than other filters.
Parallel superconvergent multigrid (1987)

We describe a class of multiscale algorithms for the solution of large sparse linear systems that are particularly well adapted to massively parallel supercomputers. While standard multigrid algorithms are unable to effectively use all processors when computing on coarse grids, the new algorithms utilize the same number of processors at all times. The basic idea is to solve many coarse scale problems simultaneously, combining the results in an optimal way to provide an improved fine scale solution. As a result, convergence rates are much faster than for standard multigrid methods - we have obtained V-cycle convergence rates as good as .0046 with one smoothing application per cycle, and .0013 with two smoothings. On massively parallel machines the improved convergence rate is attained at no extra computational cost since processors that would otherwise be sitting idle are utilized to provide the better convergence. On serial machines the algorithm is slower because of the extra time spent on multiple coarse scales, though in certain cases the improved convergence rate may justify this - particularly in cases where other methods do not converge. In constant coefficient situations the algorithm is easily analyzed theoretically using Fourier methods on a single grid. The fact that only one grid is involved substantially simplifies convergence proofs. A feature of the algorithms is the use of a matched pair of operators: an approximate inverse for smoothing and a superinterpolation operator to move the correction from coarse to fine scales, chosen to optimize the rate of convergence.
ChemInform Abstract: Modification of Wheat Gluten for Non‐Food Applications (1999)

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.
Stress and temperature effects on optical loss increase for phosphor-doped silica fibre in the long wavelength region (1983)

Irreversible loss increase in the long-wavelength region is first observed for phosphor-doped silica fibres with silicone resin layer by applying the stress at high temperature. The loss increment becomes larger for longer wavelengths. Experimental results show that the loss increase is strongly dependent on stress and temperature.
Safety and Tolerability of Transoral Bravo Capsule Placement After Transnasal Manometry Using a Validated Conversion Factor (2006)

A reliable and valid conversion factor of 4 cm following TN manometry permits accurate TO placement of the Bravo capsule without endoscopy. TO, unsedated Bravo placement is safe, well tolerated, and may minimize costs and potential risks associated with endoscopy.
A syntax-directed translator with extended domain of locality (2006)

A syntax-directed translator first parses the source-language input into a parse-tree, and then recursively converts the tree into a string in the target-language. We model this conversion by an extended tree-to-string transducer that have multi-level trees on the source-side, which gives our system more expressive power and flexibility. We also define a direct probability model and use a linear-time dynamic programming algorithm to search for the best derivation. The model is then extended to the general log-linear framework in order to rescore with other features like n-gram language models. We devise a simple-yet-effective algorithm to generate non-duplicate k-best translations for n-gram rescoring. Initial experimental results on English-to-Chinese translation are presented.
Medullary carcinoma of the thyroid (1969)

Journal Article Medullary carcinoma of the thyroid Get access C R Williams, C R Williams Senior Surgical Registrar United Birmingham Hospitals Search for other works by this author on: Oxford Academic Google Scholar D B Brewer D B Brewer Department of Pathology, University of Birmingham Search for other works by this author on: Oxford Academic Google Scholar British Journal of Surgery, Volume 56, Issue 6, June 1969, Pages 437–443, https://doi.org/10.1002/bjs.1800560610 Published: 07 December 2005
The Proteoglycans in Hypertrophic Scar (1986)

Abstract Sulfated proteoglycans of hypertrophic scar (6 months old after a burn) were extracted with 6 M hot urea, 0.02 M phosphate buffer, pH 7.0, containing protease inhibitors. Two types of proteoglycans, dermatan sulfate proteoglycans and chondroitinsulfate rich proteoglycans, were recovered. The dermatan sulfate proteoglycans, which are capable of binding to concanavalin A, were composed of Mr=53000 core protein and iduronate rich dermatan sulfate. The chondroitin sulfate rich proteoglycans did not bind to concanavalin A but had the same size core proteins as the dermatan sulfate proteoglycans, based on SDS‐polyacrylamide gel electrophoresis. The tryptic peptide mappings showed that the core proteins from dermatan sulfate have the same structural sequences as those from chondroitin sulfate rich proteoglycans.
Faster, Simpler, More-Specific Methods for Improved Molecular Detection of <i>Phytophthora ramorum</i> in the Field (2007)

Phytophthora ramorum is the causal agent of sudden oak death. The pathogen also affects a wide range of tree, shrub, and herbaceous species in natural and landscaped environments as well as plants in the nursery industry. A TaqMan real-time PCR method for the detection of this pathogen in the field has been described previously; this paper describes the development of a number of assays based on this method which have various advantages for use in the field. A scorpion real-time PCR assay that is twice as fast as TaqMan was developed, allowing the detection of P. ramorum in less than 30 min. Also designed was a loop-mediated isothermal amplification (LAMP) assay, which allowed sensitive and specific detection of P. ramorum in 45 min using only a heated block. A positive reaction was identified by the detection of the LAMP product by color change visible to the naked eye.
The Management of Deformities of the Foot in Children with Spina Bifida (1976)

A simple photographic technique is described which measures the weight-bearing and non-weight-bearing areas of the feet in the standing child. The child stands on a rectangular sheet of thick glass which is set into the floor. Beneath the floor is a cellar, from which the soles of the feet may be observed and photographed. A transparent grid placed over the photographic print enables the weight-bearing and non-weight-bearing areas of the foot to be measured, and thus to express the weight-bearing areas as a percentage of the total area of the sole of the foot. The procedure was used to assess 55 spina-bifida children who had had surgical correction of deformities of the feet. The findings are discussed.
Insecticide action : from molecule to organism (1989)

Insecticide Actions on GABA Receptors and Voltage-Dependent Chloride Channels.- Antagonism of Insect Muscle Glutamate Receptors - With Particular Reference to Arthropod Toxins.- Molecular Interactions of Organophosphates (OPs), Oximes and Carbamates at Nicotinic Receptors.- The Role of Ion Channels in Insecticide Action.- Pharmacological Characterization of Insecticide-Binding Domains of the Voltage-Sensitive Sodium Channel.- Drosophila Sodium Channel Mutations Affect Pyrethroid Sensitivity.- Actions of Insecticides in Mammalian Central Nervous System - Use of In Vivo Hippocampal Evoked Potentials.- Enhanced Neurotransmitter Release by Pyrethroid Insecticides.- Mechanism of Action of the Cytolytic Toxin of Bacillusthuringiensis israelensis.- Synaptic Toxins from Arachnid Venoms: Probes for New Insecticide Targets.- Studies on the Molecular Pathogenesis of Organophosphorus Compound-Induced Delayed Neurotoxicity (OPIDN).- Physiological Compensation for Toxic Actions of Organophosphate Insecticides.- Monooxygenations: Interactions and Expression of Toxicity.- Non-Catalytic Detoxication of Acetylcholinesterase Inhibitors by Liver and Plasma Proteins.- Use of Resistance Phenomena as a Research Tool for Studying the Mechanisms of Action of Insecticides.
Computer Processing of Line-Drawing Images (1974)

article Computer Processing of Line-Drawing Images Share on Author: Herbert Freeman New York University West 177th Street & Harlem River, Bronx, New York New York University West 177th Street & Harlem River, Bronx, New YorkView Profile Authors Info & Claims ACM Computing SurveysVolume 6Issue 1March 1974 pp 57–97https://doi.org/10.1145/356625.356627Online:01 March 1974Publication History 1,034citation5,557DownloadsMetricsTotal Citations1,034Total Downloads5,557Last 12 Months56Last 6 weeks14 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access
High power density NaNbO<sub>3</sub>-LiTaO<sub>3</sub>lead-free piezoelectric transformer in radial vibration modes (2015)

In the present work, the sintering temperature was able to substantially influence the microstructure and electrical properties of the lead-free ceramic 0.88NaNbO3–0.12LiTaO3. This composition without any acceptor doping presents a high mechanical quality factor, Qm, value of 1469 and a high Curie temperature of 305 °C by optimizing the sintering temperature at 1330 °C. We applied this material to make a device of disk-shaped piezoelectric transformers with a ring–dot structure and further focused on investigating the characteristics of the piezoelectric transformers. With matching load, a maximum efficiency of 92% occurs in the fundamental mode, and the maximum voltage gains are 5.5 and 3.7 for the fundamental and third radial vibration modes, respectively. The experimental results show a maximum output power of 10.5 W with a temperature rise of 27 °C. It is noteworthy that a high output power density (as high as 32.8 W cm−3) was obtained under a maximum input voltage of 180 V, which is comparable to the performance of PZT in a piezoelectric ceramic transformer device.
Entorhinal cortex of the rat: Topographic organization of the cells of origin of the perforant path projection to the dentate gyrus (1998)

By using three-dimensional computer reconstruction techniques and the production of two-dimensional unfolded maps, we analyzed the topographic organization of projections from the entorhinal cortex of the rat to the dentate gyrus. The retrograde tracers, Fast blue and Diamidino yellow, were injected at all septotemporal levels of the dentate gyrus, and the distribution of retrogradely labeled layer II cells in the entorhinal cortex was plotted by using computer-aided microscopy systems. Discrete injections of fluorescent dyes into the dentate gyrus labeled bands of layer II neurons in the entorhinal cortex that covered approximately 45% of its surface area. Injections confined to the septal half of the dentate gyrus resulted in a band that occupied the most lateral and caudomedial portions of the entorhinal cortex. Although there were subtle changes in the density of labeled cells in this region, essentially the same region of cells was labeled after any injection into the septal half of the dentate gyrus. Injections into mid-septotemporal levels of the dentate gyrus (50–75% of the distance from the septal pole) led to a distinctly different pattern of retrograde labeling. A more medial portion of the lateral entorhinal cortex and a more rostral portion of the medial entorhinal area were labeled in these cases. Another change in entorhinal labeling occurred when the injection involved the most temporal quarter of the dentate gyrus. Injections into this area led to a constrained region of entorhinal labeling that included the most medial portion of the lateral entorhinal area and the most rostral portion of the medial entorhinal area. Although the domains of cells projecting to septal, mid-septotemporal, and temporal levels of the dentate gyrus were not entirely segregated, there was relatively little overlap of the three populations of neurons. These data raise the possibility that different portions of the entorhinal-hippocampal circuit are capable of semiautonomous information processing, at least at the stage of input to the dentate gyrus. J. Comp. Neurol. 398:25–48, 1998. © 1998 Wiley-Liss, Inc.
The purification of interferon (1961)

Research Article| March 01 1961 The purification of interferon D C Burke D C Burke 1National Institute for Medical Research, Mill Hill, London, N.W. 7 Search for other works by this author on: This Site PubMed Google Scholar Biochem J (1961) 78 (3): 556–564. https://doi.org/10.1042/bj0780556 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn MailTo Cite Icon Cite Get Permissions Citation D C Burke; The purification of interferon. Biochem J 1 March 1961; 78 (3): 556–564. doi: https://doi.org/10.1042/bj0780556 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 ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1961 CAMBRIDGE UNIVERSITY PRESS1961 Article PDF first page preview Close Modal You do not currently have access to this content.
Programmed‐temperature injector for large‐volume sample introduction in capillary gas chromatography and for liquid chromatography‐gas chromatography interfacing (1992)

Abstract The introduction of large sample volumes in capillary gas chromatography is becoming increasingly important in various application areas. Especially in the analysis of very dilute sample ( e.g ., environmental samples) and in coupled LC‐GC, large volume sampling is extremely important. Programmed‐temperature sample introduction is shown to be an attractive technique for these purposes. In this paper we present some applications of large volume sampling in environmental analysis. Water samples were analyzed using both off‐line and on‐line extraction with gas chromatography (GC) analysis. In the off‐line method, pollutants were extracted into hexane or methylene chloride. Using the programmed‐temperature injector, up to 250 μL of the extract could be introduced into the GC system. In this way, reproducible quantitative analysis of PAHs and herbicides were achieved at sub‐ppb concentrations using flame ionization detection. In the on‐line mode, pollutants were preconcentrated on a short liquid chromatography (LC) column packed with a PLRP‐S solid phase extraction material. After the trapping step, the components were desorbed by ethyl acetate and transferred directly into the programmed‐temperature vaporizer (PTV‐GC) system. Using this method, detection limits below about 1 ppb of herbicides in water were obtained.
Skeletons and Asynchronous RPC for Embedded Data and Task Parallel Image Processing (2006)

Developing embedded parallel image processing applications is usually a very hardware-dependent process, often using the single instruction multiple data (SIMD) paradigm, and requiring deep knowledge of the processors used. Furthermore, the application is tailored to a specific hardware platform, and if the chosen hardware does not meet the requirements, it must be rewritten for a new platform. We have proposed the use of design space exploration [9] to find the most suitable hardware platform for a certain application. This requires a hardware-independent program, and we use algorithmic skeletons [5] to achieve this, while exploiting the data parallelism inherent to low-level image processing. However, since different operations run best on different kinds of processors, we need to exploit task parallelism as well. This paper describes how we exploit task parallelism using an asynchronous remote procedure call (RPC) system, optimized for low-memory and sparsely connected systems such as smart cameras. It uses a futures [16]-like model to present a normal imperative C-interface to the user in which the skeleton calls are implicitly parallelized and pipelined. Simulation provides the task dependency graph and performance numbers for the mapping, which can be done at run time to facilitate data dependent branching. The result is an easy to program, platform independent framework which shields the user from the parallel implementation and mapping of his application, while efficiently utilizing on-chip memory and interconnect bandwidth.
SDBIA: A Novel Approach to Improve the Reading Performance of Large Objects for Object-Based Storage Device (2007)

Ext2 file system is optimized for the management of small files, however, the performance of managing large files is not perfect. The Object-based Storage Device of HOSS[1] (Huge Object-Based Storage System, HOSS) adopts ext2 as the underlying file system, so the performance of managing large objects is limited. Two strategies to improve the reading performance of large objects in OSDs are proposed in this paper. Firstly, local relativity of data blocks on disk is utilized to reconstruct the data block index addresses as Successive Data Blocks Index Array (SDBIA). SDBIA will be taken as one attribute of the object and then the performance of getting the data block index address of large objects will be improved obviously. Secondly, successive blocks allocation strategy is adopted. The experiment shows that these two strategies are effective for the performance of reading large objects.
Cryoprotective Effect of Saccharides on Denaturation of Catalase by Freeze-Drying. (1991)

A mechanism of the cryoprotective effect of saccharides on the denaturation of catalase in the freeze-drying process was studied. Denaturation percents (D%) were measured by changing concentrations of saccharides and catalase. Dependence of D% on a weight ratio of saccharide to catalase suggested that they interact directly with each other. The mode of interaction is probably hydrogen-bonding. An effective number of hydrogen-bonding sites for several saccharides on the surface of the catalase molecule was evaluated by reference to the X-ray analysis data. Glucose, maltose and maltotriose showed a similar protective effect compared on the basis of their weights, and a glucoside group of those saccharides occupied about 5 hydrogen-bonding sites on a catalase molecule at the maximum protection. Saccharides with longer glucoside chains have less protection effect depending on their molecular weights. Judging from the above results, saccharides are bound to catalase as a monomolecualr layer and this layer protects catalase from being denatured instead of the hydration monolayer.