gebhart/patrepeval huggingface dataset:
Peracetic acid oxidation of hydrazones. II. Aliphatic ketone and aldehyde alkylhydrazones (1967)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeracetic acid oxidation of hydrazones. II. Aliphatic ketone and aldehyde alkylhydrazonesBernard T. Gillis and Karl F. SchimmelCite this: J. Org. Chem. 1967, 32, 9, 2865–2868Publication Date (Print):September 1, 1967Publication History Published online1 May 2002Published inissue 1 September 1967https://pubs.acs.org/doi/10.1021/jo01284a046https://doi.org/10.1021/jo01284a046research-articleACS PublicationsRequest reuse permissionsArticle Views247Altmetric-Citations10LEARN 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
Fast object tracking in digital video (2000)

This paper presents a fast semi-automatic semantic object-tracking algorithm for digital video. The proposed method consists of two steps, namely, intra-frame object extraction and the inter-frame object tracking. For the intra-frame segmentation, we try to minimize the human intervention by exploiting the automatic homogenous region segmentation. Then, to achieve a fast inter-frame object tracking, we propose to use 1-D projected motion estimation and an improved flooding method for the watershed algorithm.
The Phase-Shift Method of Single-Sideband Signal Generation (1956)

A general expression is developed for sideband suppression obtained with the phase-shift method of single-sideband signal generation. The sideband suppression ratio is expressed in terms of four systems parameters, three of which are governed by the characteristics of wide-band phase-shift networks employed in such signal generators. Several typical phase-shift network configurations are analyzed and shown to be equivalent to a cascade of networks of "simplest" type. In addition, certain special network combinations are presented. A simple dual-channel multiplex single-sideband generator of the phase-shift type is shown. Use of the phase-shift method in combination with band-pass filters to enhance system performance is discussed. The role of a modified phase-shift type of signal generator as a system-test signal source is outlined. The eflects of intermodulation distortion on signal purity and the performance stability of the phase-shift method are discussed from the system viewpoint.
Purified factor IX using monoclonal immunoaffinity technique: clinical trials in hemophilia B and comparison to prothrombin complex concentrates (1992)

Replacement therapy for hemophilia B (factor IX deficiency) using prothrombin complex concentrate (PCC) has been associated with serious complications of thromboembolic events and transmission of viral infections. Monoclonal antibody-purified factor IX (Mononine) provides a highly purified factor IX concentrate, while eliminating other vitamin K-dependent factors (II, VII, and X). Mononine was evaluated for in vivo recovery, half-life, and for its safety and efficacy in 10 patients with hemophilia B. The in vivo recovery of factor IX with Mononine was a 0.67 +/- 0.14 U/dL (mean +/- SD) increase per 1U/kg of infused factor IX, and the biologic half-life (t1/2), determined using the terminal phase of elimination, was 22.6 +/- 8.1 hours. Comparison of in vivo recovery of other vitamin K-dependent factors following a single infusion of either Mononine or PCC showed that, whereas Mononine infusion caused no changes in other vitamin K-dependent factors or in prothrombin activation fragment (F1+2), PCC infusion was associated with significant increases of factors II (2.7 U/dL per 1 U/dL of IX increase) and X (2.2 U/dL for 1 U/dL for 1 U/dL of IX). Patients who used Mononine as their sole therapeutic material during the 12-month period showed an excellent response in hemostasis for their bleeding episodes. Their experience with long-term use of Mononine was at least equivalent to their previous experience with PCC in the frequency and amount of factor usage. No patients developed antibody against mouse IgG or an increase in IX inhibitor during the 12-month period. These results indicate that monoclonal antibody-purified factor IX concentrate provides hemostatically effective factor IX replacement while avoiding extraneous thrombogenic substances.
A heuristic approach for recognizing a document's language used for the Internet search engine GETESS (2002)

The authors illustrate how Internet documents can be automatically analyzed in order to identify the document's language. This language knowledge is then used for the Internet search engine, GETESS. The aim of the language classification heuristics is to ensure that documents with the same content, but different languages (e.g. in German and English), will not simultaneously be presented to the user as search results. The GETESS search engine only provides the results in the language relevant to the user. Consequently, the search-result set is narrower and more appropriately fits the needs of the user.
Quartz Crystal Microbalance Investigation of Electrochemical Calcium Carbonate Scaling (1998)

International audience
A Novel NMF Guided Level-set for DWI Prostate Segmentation (2014)

Objective: To develop an automated 3D framework for prostate segmentation from diffusion-weighted imaging (DWI).
Nonpeptide Inhibitors of Measles Virus Entry (2006)

Measles virus (MV) is one of the most infectious pathogens known. Despite the existence of a vaccine, over 500,000 deaths/year result from MV or associated complications. Anti-measles compounds could conceivably reverse these statistics. Previously, we described a homology model of the MV fusion protein trimer and a putative binding site near the head-neck region. The resulting model permitted the identification of two nonpeptidic entry inhibitors. Here, we present the design, synthesis, and bioevaluation of several series of fusion inhibitors and describe their structure-activity relationships (SAR). Five simply substituted anilides show low-microM blockade of the MV, one of which (AS-48) exhibits IC50 = 0.6-3.0 microM across a panel of wild-type MV strains found in the field. Molecular field topology analysis (MFTA), a 2D QSAR approach based on local molecular properties (atomic charges, hydrogen-bonding capacity and local lipophilicity), applied to the anilide series suggests structural modifications to improve potency.
Novel ridged waveguide differential phase shifter for satellite application (2014)

A compact differential phase shifter structure that exhibits both full-band operation and easy mechanical manufacture is presented. It consists of a rectangular waveguide loaded with single ridge sections terminated by a unique H-plane step widening to standard waveguide dimensions. Two prototypes of 90º and 180º differential phase shifters with reference to an empty waveguide of the same length were designed and tested for the WR75 waveguide band. In both cases the differential phase shifter exhibits a maximum measured phase error of ±2.5º and ±3.5º respectively, with return losses better than 24 dB and insertion losses lower than 0.06 dB over a >40% bandwidth, which represents state-of-the-art achievement for non-dielectric loaded waveguide circuits. Furthermore, this structure is well suited for H-plane millimetre-wave integration.
SRPGAN: Perceptual Generative Adversarial Network for Single Image Super Resolution (2017)

Single image super resolution (SISR) is to reconstruct a high resolution image from a single low resolution image. The SISR task has been a very attractive research topic over the last two decades. In recent years, convolutional neural network (CNN) based models have achieved great performance on SISR task. Despite the breakthroughs achieved by using CNN models, there are still some problems remaining unsolved, such as how to recover high frequency details of high resolution images. Previous CNN based models always use a pixel wise loss, such as l2 loss. Although the high resolution images constructed by these models have high peak signal-to-noise ratio (PSNR), they often tend to be blurry and lack high-frequency details, especially at a large scaling factor. In this paper, we build a super resolution perceptual generative adversarial network (SRPGAN) framework for SISR tasks. In the framework, we propose a robust perceptual loss based on the discriminator of the built SRPGAN model. We use the Charbonnier loss function to build the content loss and combine it with the proposed perceptual loss and the adversarial loss. Compared with other state-of-the-art methods, our method has demonstrated great ability to construct images with sharp edges and rich details. We also evaluate our method on different benchmarks and compare it with previous CNN based methods. The results show that our method can achieve much higher structural similarity index (SSIM) scores on most of the benchmarks than the previous state-of-art methods.
An Efficient 10GBASE-T Ethernet LDPC Decoder Design With Low Error Floors (2010)

<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> A grouped-parallel low-density parity-check (LDPC) decoder is designed for the (2048,1723) Reed-Solomon-based LDPC (RS-LDPC) code suitable for 10GBASE-T Ethernet. A two-step decoding scheme reduces the wordlength to 4 bits while lowering the error floor to below 10<formula formulatype="inline"> <tex Notation="TeX">$^{-14}~$</tex></formula>BER. The proposed post-processor is conveniently integrated with the decoder, adding minimal area and power. The decoder architecture is optimized by groupings so as to localize irregular interconnects and regularize global interconnects and the overall wiring overhead is minimized. The <formula formulatype="inline"><tex Notation="TeX">${\hbox {5.35~mm}}^{2}$</tex></formula>, 65 nm CMOS chip achieves a decoding throughput of 47.7 Gb/s. With scaled frequency and voltage, the chip delivers a 6.67 Gb/s throughput necessary for 10GBASE-T while dissipating 144 mW of power. </para>
Some Dialkylaminoalkylmercaptoquinolines (1949)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSome DialkylaminoalkylmercaptoquinolinesHenry. Gilman and Mary Alys. PlunkettCite this: J. Am. Chem. Soc. 1949, 71, 11, 3667–3668Publication Date (Print):November 19, 1949Publication History Published online1 May 2002Published inissue 19 November 1949https://pubs.acs.org/doi/10.1021/ja01179a026https://doi.org/10.1021/ja01179a026research-articleACS PublicationsRequest reuse permissionsArticle Views31Altmetric-Citations2LEARN 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
Depletion layer formation in suspensions of elastic capsules in Newtonian and viscoelastic fluids (2012)

Motivated by observations of the effects of drag-reducing polymer additives on various aspects of blood flow, suspensions of fluid-filled elastic capsules in Newtonian fluids and dilute solutions of high molecular weight (drag-reducing) polymers are investigated during plane Couette flow in a slit geometry. A simple model is presented to describe the cross-stream distribution of capsules as a balance of shear-induced diffusion and wall-induced migration due to capsule deformability. The model provides a theoretical prediction of the dependence of capsule-depleted layer thickness on the capillary number. A computational approach is then used to directly study the motion of elastic capsules in a Newtonian fluid and in polymer solutions. Capsule membranes are modeled using a neo-Hookean constitutive model and polymer molecules are modeled as bead-spring chains with finitely extensible nonlinearly elastic springs, with parameters chosen to loosely approximate 4000 kDa poly(ethylene oxide). Simulations are performed with a Stokes flow formulation of the immersed boundary method for the capsules, combined with Brownian dynamics for the polymer molecules. Results for an isolated capsule near a wall indicate that the wall-induced migration depends on the capillary number and is strongly reduced by addition of polymer. Numerical simulations of suspensions of capsules in Newtonian fluid illustrate the formation of a capsule-depleted layer near the walls. The thickness of this layer is found to be strongly dependent on the capillary number. The shear-induced diffusivity of the capsules, on the other hand, shows only a weak dependence on capillary number. These results thus indicate that the mechanism of wall-induced migration is the primary source for determining the capillary number dependence of the depletion layer thickness. Both the wall-induced migration and the shear-induced diffusive motion of the capsules are attenuated under the influence of polymer; reduction of migration dominates, however, so the net effect of polymers on the capsule suspension is to reduce the thickness of the capsule-depleted layer. This prediction is in qualitative agreement with experimental observations.
Robust SiN<sub>x</sub>/GaN MIS-HEMTs With Crystalline Interfacial Layer Using Hollow Cathode PEALD (2018)

In this letter, we report gallium nitride-based metal-insulator-semiconductor high-electron-mobility transistors (GaN MIS-HEMTs) with a 16-nm-thick silicon nitride (SiN <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> ) gate insulator and surface passivation layer grown using low-temperature (300 °C) hollow cathode plasma-enhanced atomic layer deposition. Tris(dimethylamino) silane and a remote N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> plasma were used as the silicon precursor and the nitrogen co-reactant, respectively. Though the growth temperature was as low as 300 °C, we obtained excellent film properties such as a high refractive index (2.00), a high film density (2.9 g/cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> ), and a low wet etch rate (0.8 nm/min)in 100:1 hydrofluoric acid. High-resolution transmission electron microscopy images of the gate stacks showed ~1.5 nm β-phase Si <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> N <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> crystalline interfacial layer on the GaN surface. The devices showed a negligible hysteresis of ~50 mV, a steep subthreshold slope of 76 mV/dec, and a high <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">ON/OFF</sub> drain current ratio of ~10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">9</sup> . In addition, the devices showed a small positive/negative bias temperature threshold voltage (V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sub> ) instability (ΔV <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">th</sub> ≤ 0.2 V at 25 °C and 150 °C) as well as a mitigated current collapse under an off-state quiescent V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DS</sub> of 20 V.
Analysis of the β-1,3-Glucanolytic System of the Biocontrol Agent<i>Trichoderma harzianum</i> (1998)

The biocontrol agent Trichoderma harzianum IMI206040 secretes beta-1,3-glucanases in the presence of different glucose polymers and fungal cell walls. The level of beta-1,3-glucanase activity secreted was found to be proportional to the amount of glucan present in the inducer. The fungus produces at least seven extracellular beta-1,3-glucanases upon induction with laminarin, a soluble beta-1,3-glucan. The molecular weights of five of these enzymes fall in the range from 60,000 to 80,000, and their pIs are 5.0 to 6.8. In addition, a 35-kDa protein with a pI of 5.5 and a 39-kDa protein are also secreted. Glucose appears to inhibit the formation of all of the inducible beta-1,3-glucanases detected. A 77-kDa glucanase was partially purified from the laminarin culture filtrate. This enzyme is glycosylated and belongs to the exo-beta-1,3-glucanase group. The properties of this complex group of enzymes suggest that the enzymes might play different roles in host cell wall lysis during mycoparasitism.
The Transcriptional Coactivator Querkopf Controls Adult Neurogenesis (2006)

The adult mammalian brain maintains populations of neural stem cells within discrete proliferative zones. Understanding of the molecular mechanisms regulating adult neural stem cell function is limited. Here, we show that MYST family histone acetyltransferase Querkopf (Qkf, Myst4, Morf)-deficient mice have cumulative defects in adult neurogenesis in vivo, resulting in declining numbers of olfactory bulb interneurons, a population of neurons produced in large numbers during adulthood. Qkf-deficient mice have fewer neural stem cells and fewer migrating neuroblasts in the rostral migratory stream. Qkf gene expression is strong in the neurogenic subventricular zone. A population enriched in multipotent cells can be isolated from this region on the basis of Qkf gene expression. Neural stem cells/progenitor cells isolated from Qkf mutant mice exhibited a reduced self-renewal capacity and a reduced ability to produce differentiated neurons. Together, our data show that Qkf is essential for normal adult neurogenesis.
Mixing Control Strategy for Engine Performance Improvement in a Gasoline Direct Injection Engine (1998)

<div class="htmlview paragraph">Spray motion visualization, mixture strength measurement, flame spectral analyses and flame behavior observation were performed in order to elucidate the mixture preparation and the combustion processes in Mitsubishi GDI engine. The effects of in-cylinder flow called reverse tumble on the charge stratification were clarified. It preserves the mixture inside the spherical piston cavity, and extends the optimum injection timing range. Mixture strength at the spark plug and at the spark timing can be controlled by changing the injection timing. It was concluded that reverse tumble plays a significant role for extending the freedom of mixing.</div> <div class="htmlview paragraph">The characteristics of the stratified charge combustion were clarified through the flame radiation analyses. A first flame front with UV luminescence propagates rapidly and covers all over the combustion chamber at the early stage of combustion. Then, the combustion of rich mixture proceeds in the reaction zone behind a second flame front with thermal radiation. The second flame front propagates into the post flame zone of the first flame front filled with the products of first flame such as radicals and CO. Soot generated in the rich mixture zone is burned-up in this radical rich zone.</div> <div class="htmlview paragraph">Based on this finding, a new mixing control strategy for knock suppression named “two-stage mixing” was proposed. A first injection is performed during the early stage of the intake stroke to prepare the very lean premixed mixture and a second injection is performed during the later stage of the compression stroke to prepare the distinctively stratified mixture. The premixed mixture is too lean to induce knock and the stratified mixture does not have the enough time for the incubation reaction of knock to proceed. What is interesting is that soot generated in the rich mixture zone is not emitted at all. In the case of the conventional stratified charge rich combustion, soot behind the flame front propagates to the air zone and is cooled to generate cold soot that will not be reburned. In case of the two-stage mixing, soot in the rich mixture zone propagates to the lean premixed mixture zone, where soot plays a role of the ignition site and ignites the lean mixture. Soot in the lean mixture zone is burned-up efficiently utilizing the air, radicals and heat generated by the combustion of the lean mixture.</div>
Improving Image Segmentation Using Genetic Algorithm (2012)

This paper presents a new approach to the problem of semantic segmentation of digital images. We aim to improve the performance of some state-of-the-art approaches for the task. We exploit a new version of texton feature [28], which can encode image texture and object layout for learning a robust classifier. We propose to use a genetic algorithm for the learning parameters of weak classifiers in a boosting learning set up. We conducted extensive experiments on benchmark image datasets and compared the segmentation results with current proposed systems. The experimental results show that the performance of our system is comparable to, or even outperforms, those state-of-the-art algorithms. This is a promising approach as in this empirical study we used only texture-layout filter responses as feature and a basic setting of genetic algorithm. The framework is simple and can be extended and improved for many learning problems.