gebhart/patrepeval huggingface dataset:
Interaction of Hydrogen with Oxygen Adsorbed on Copper Single Crystal (1972)

The interaction of molecular hydrogen with Cu (110) (2×1) -O, Cu (110) c (6×2) -O, Cu (110) amorphous-O, and Cu (110) c (2×2) -O structures has been studied by low energy electron diffraction for determining the reaction mechanism of hydrogen-oxygen reaction on copper surfaces. After these surface structures were exposed in molecular hydrogen atmosphere at a pressure of 1 ×10-6Torr, LEED patterns were observed in ultra high vacuum, raising the temperature successively at definite steps and rate. A great difference was found in reactivity of the different surface structures. The Cu (110) (2 × 1) -O structure reacted with molecular hydrogen at 300°C, but the Cu (110) c (6×2) -O structure did not react up to 700°C. In ultra high vacuum (10-10Torr), all the structures investigated became clean by heating for 20 minutes at 750°C. The Cu (110) amorphous-O structure changed to Cu (11) c (6× 2) -O structure at 350°C and did not react with molecular hydrogen up to 700°C in molecular hydrogen atmosphere. The Cu (100) c (2×2) -O structure reacted with molecular hydrogen at 300°C. From these results obtained, the following mechanism is proposed. The reaction of oxygen chemisorbed on copper surfaces with molecular hydrogen is supposed to require dissociative adsorption of hydrogen on the surface mesh. According to the reconstruction theory, copper atoms are put in a row of [001] direction on the reactive surface structure and oyygen atoms do not exist between copper atoms, while on the inreactive surface structures copper and oxygen atoms are put in a row of [001] direction alternatively. Dissociative adsorption is suppose to be possible on the former surface structures, but impossible on the latter ones. Surface reaction of adsorbed hydrogen and oxygen atoms may be facilitated only on the reactive surface structures.
Selected Results from Big Carbonate Pore System Database: A Case Study from Saudi Aramco (2018)

Abstract Carbonate reservoir complexities are both described and hidden by the use of the common and generic term, "heterogeneous", with usually little serious effort then expended to define and quantify the meaning and dimensions of the term. Saudi Aramco, the custodian of the world’s largest petroleum reserves in carbonate reservoirs, is making long-term efforts to bring light to the carbonate "heterogeneity" darkness. We are constructing the industry’s largest integrated petrophysical and geological databases for our major carbonate reservoirs. Our large databases contain porosity, permeability, grain density and pore system information from core plugs carefully integrated with a full suite of well log data and core descriptions. These cores have been described in detail using the most current carbonate sequence stratigraphic techniques and all these data have been captured digitally and integrated consistently and carefully. Our database for one field contains 1695 limestone pore systems (a pore system is defined by a single Thomeer hyperbola), obtained from 931 plug samples by Thomeer analysis of core plug mercury capillary pressure data (MICP) with plans to expand the measurements to 1500 plug samples for just this one major reservoir by the year 2020. The current core plugs for the database now include samples from 30 cored wells (up from the 10 cored wells of the previous Rosetta Stone project) to obtain statistically robust reservoir petrophysical data at the facies level. Pore system data are now also being acquired in vertical wells for constrained reservoir layering and vertical reservoir model tie points using nuclear magnetic resonance (NMR) well log data and the CIPHER software for the Thomeer parameter MICP-consistent spectral porosity analysis. At Saudi Aramco, our extensive facies – petrophysical properties database process delivers the reference reservoir property database for our major carbonate reservoir models. The reference database improves our understanding and modelling of the variation and covariation of the facies and petrophysical rock types (PRTs) for reservoir modeling. It also provides sound statistical support for the population of the reservoir with petrophysical pore system properties within the sequence stratigraphic facies framework. For the reservoir dynamics, the database allows detailed investigations into the statistical linkages of pore system properties which control permeability and relative permeability developed by Clerke and coworkers to the sequence stratigraphic reservoir facies. We report here selected results from a very large quantity of relationships and statistical attributes that can be derived from this database. At the general carbonates level, these reference databases demonstrate that the reservoir complexity hidden in the shadow of "heterogeneity" is actually the prevalence and statistical distribution of these multimodal pore systems and their attributes.
A regenerable immobilized NADH model III. Reduction of <i>N</i>‐methylacridinium perchlorate by immobilized 1,4‐dihydronicotinamide (1984)

Abstract A regenerable dihydropyridine, immobilized on a macroreticular polystyrene resin, reduces the N ‐methylacridinium ion. The influence of the polymeric network on this hydride transfer reaction was studied. During the reaction charge was built up in the resin and the transport of substrate was hindered, due to electrostatic repulsion. As a result, the reaction rate decreased as the reduction proceeded. It was observed that the charge accumulation was dependent on the site location. Reutilization of the polymeric reagent for the reduction of the acridinium ion amounted to 93% per cycle and was better than that observed (earlier) for the reduction of the ketone trifluroacetophenone.
Laboratory Mating Studies of the Corn Earworm, Heliothis zea (Lepidoptera: Noctuidae)12 (1967)

Journal Article Laboratory Mating Studies of the Corn Earworm, Heliothis zea (Lepidoptera: Noctuidae) Get access J. Wendell Snow, J. Wendell Snow Entomology Research Division, Agr. Res. Serv., USDA, Tifton, Georgia Search for other works by this author on: Oxford Academic Google Scholar Philip S. Callahan Philip S. Callahan Entomology Research Division, Agr. Res. Serv., USDA, Tifton, Georgia Search for other works by this author on: Oxford Academic Google Scholar Annals of the Entomological Society of America, Volume 60, Issue 5, 15 September 1967, Pages 1066–1071, https://doi.org/10.1093/aesa/60.5.1066 Published: 15 September 1967 Article history Accepted: 28 November 1966 Published: 15 September 1967
Experimental and Theoretical Investigation of the Barrier Pyroelectric Effect in a Quantum Paraelectric Semiconductor (2008)

We describe here the first comprehensive investigation of a pyroelectric response of a p-n junction in a non-polar paraelectric semiconductor. The pyroelectric effect is generated by the, temperature dependent, built-in electrical dipole moment. High quality PbTe p-n junctions have been prepared specifically for this experiment. The pyroelectric effect was excited by a continuous CO2 laser beam, modulated by a mechanical chopper. The shape and amplitude of the periodic and single-pulse pyroelectric signals were studied as a function of temperature (10K-130K), reverse bias voltage (up to -500 mV) and chopping frequency (4Hz-2000Hz). The pyroelectric coefficient is about 10^(-3) microC/cm2K in the temperature region 40 - 80 K. The developed theoretical model quantitatively describes all the experimental features of the observed pyroelectric effect. The time evolution of the temperature within the p-n junction was reconstructed.
Heavy transition metal complexes of biologically important molecules. 3. Crystal and molecular structure of bis(.mu.-1-methylthyminato-N3,O4)bis(cis-diammineplatinum(II)) dinitrate hydrate, [(NH3)2Pt(C6H7N2O2)2Pt(NH3)2](NO3)2.H2O (1978)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHeavy transition metal complexes of biologically important molecules. 3. Crystal and molecular structure of bis(.mu.-1-methylthyminato-N3,O4)bis(cis-diammineplatinum(II)) dinitrate hydrate, [(NH3)2Pt(C6H7N2O2)2Pt(NH3)2](NO3)2.H2OColin James Lyne Lock, Henry J. Peresie, Barnett Rosenberg, and Graham TurnerCite this: J. Am. Chem. Soc. 1978, 100, 11, 3371–3374Publication Date (Print):May 1, 1978Publication History Published online1 May 2002Published inissue 1 May 1978https://pubs.acs.org/doi/10.1021/ja00479a020https://doi.org/10.1021/ja00479a020research-articleACS PublicationsRequest reuse permissionsArticle Views77Altmetric-Citations51LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Inside Back Cover: A Key concept in Magnesium Secondary Battery Electrolytes (ChemSusChem 18/2015) (2015)

The Inside Back Cover picture shows the use of polymeric δ-MgCl2 and an imidazolium-based chloroaluminate ionic liquid to synthesize an innovative electrolyte for application in secondary Mg batteries. The resulting nanostructure of the ionic liquid with the chlorine-concatenated Mg complex, results in unique electrochemical performance, opening new prospectives in the field of secondary batteries. The interplay between structure and electrical properties provides the opportunity to obtain a fundamental understanding of the conductivity mechanism and to devise and develop future electrolytes for use in electric vehicle applications. More details can be found in the Full Paper by V. Di Noto et al. on page 3069 in Issue 18, 2015. (DOI: 10.1002/cssc.201500339).
ChemInform Abstract: The Path for Metal Complexes to a DNA Target (2013)

Abstract Review: 96 refs.
Technique for Phoneme Set Selection for Automatic Russian Speech Recognition (2014)

In the paper, selection of best phoneme set for Russian automatic speech recognition is described. For the acoustic modeling, we describe a method based on combination of knowledge-based and statistical approaches to create several different phoneme sets. Applying this method to the Russian phonetic set of the IPA (International Phonetic Alphabet) alphabet, we first reduced it to 47 phonological units and derived several other phoneme sets with different number of phonological units from 27 till 47. Speech recognition experiments using these sets showed that reduced phoneme sets are better for phoneme recognition task and as good for word level speech recognition. For experiment with extra-large vocabulary, we used syntactico-statistical language model, which allowed us to achieve the word recognition accuracy of 73.1%. The results correspond to continuous Russian speech recognition quality obtained by other organizations up to date.
Multi-representation databases with explicitly modelled intra-resolution, inter-resolution and update relations (2006)

This paper presents a new approach combining multi-representation databases with the generalisation and update process. It leads to a tightly integrated model, which is implemented as a part of the existing cartographic GIS axpand. The approach is based on the mathematical concept of relations and, in particular, on the three different types of relations: intra-resolution, inter-resolution and up-date. Intra-resolution relations allow the representation of relationships between features within one resolution. Examples are partitions, neighbourhood and topology. The inter-resolution relation represents the relationship between features of different resolutions. This originates from a generalisation or matching process. The update relation describes temporal changes of features. After a detailed theory about the introduced relation types the paper continues with a discussion of their similarities and differences with focus on implementation in a multi-representation database. Finally some exemplary results of the integrated model are presented.
3. Effects of lice on hosts (2015)

Abstract This chapter reviews data relevant to the effects of lice on host fitness, including aspects of host condition, survival, and reproductive success. The chapter includes four nonexclusive categories: 1) effects of lice on domesticated hosts (both mammals and birds), 2) effects of lice on wild hosts (mammals and birds), 3) effects of lice on mate choice and sexual selection, and 4) costs of resistance to lice. Examples are provided of both the proximal effects of lice on hosts, such as blood loss or feather damage, as well as the ultimate effects of lice on host fitness. The indirect role of lice as vectors or intermediate hosts of pathogens of hosts is also considered in some detail. The chapter concludes with a section on host tolerance, which is an alternative strategy that does not reduce parasite fitness, and therefore does not select for parasite escape.
A microfluidic chip for electrochemical conversions in drug metabolism studies (2009)

We have designed a microfluidic microreactor chip for electrochemical conversion of analytes, containing a palladium reference electrode and platinum working and counter electrodes. The counter electrode is placed in a separate side-channel on chip to prevent unwanted side-products appearing in the measured spectrograms. Using this chip, cyclic voltammograms are measured in volumes of 9.6 nL. Furthermore the conversion efficiency of ferricyanide is characterized using UV/vis-spectroscopy. We have obtained an on-line conversion of 97% using a flow rate of 1 microL/min. We have used the microreactor chip to study the electrochemical metabolism pathway of amodiaquine using electrochemistry (EC)-liquid chromatography (LC)-mass spectrometry (MS). We have compared our results with measurements obtained with commercially available electrochemical flow-through cells. Using our chip it was possible to obtain similar results. Therefore, we have fabricated an electrochemical cell on-chip which is used successfully in EC-UV/vis and EC-LC-MS experiments.
Intestinal receptor for heat-stable enterotoxin of Escherichia coli is tightly coupled to a novel form of particulate guanylate cyclase (1986)

A novel form of particulate guanylate cyclase tightly coupled by cytoskeletal components to receptors for heat-stable enterotoxin (ST) produced by Escherichia coli can be found in membranes from rat intestinal mucosa. Intestinal particulate guanylate cyclase was resistant to solubilization with detergent alone, with only 30% of the total enzyme activity being extracted with Lubrol-PX. Under similar conditions, 70% of this enzyme was solubilized from rat lung membranes. The addition of high concentrations of sodium chloride to the extraction buffer resulted in greater solubilization of particulate guanylate cyclase from intestinal membranes. Although extraction of intestinal membranes with detergent and salt resulted in greater solubilization of guanylate cyclase, a small fraction of the enzyme activity remained associated with the particulate fraction. This activity was completely resistant to solubilization with a variety of detergents and chaotropes. Particulate guanylate cyclase and the ST receptor solubilized by detergent retained their abilities to produce cyclic GMP and bind ST, respectively. However, ST failed to activate particulate guanylate cyclase in detergent extracts. In contrast, guanylate cyclase resistant to solubilization remained functional and coupled to the ST receptor since enzyme activation by ST was unaffected by various extraction procedures. The possibility that the ST receptor and particulate guanylate cyclase were the same molecule was explored. ST binding and cyclic GMP production were separated by affinity chromatography on GTP-agarose. Similarly, guanylate cyclase migrated as a 300,000-dalton protein, while the ST receptor migrated as a 240,000-dalton protein on gel filtration chromatography. Also, thiol-reactive agents such as cystamine and N-ethylmaleimide inhibited guanylate cyclase activation by ST, with no effect on receptor binding of ST. These data suggest that guanylate cyclase and the ST receptor are independent proteins coupled by cytoskeletal components in membranes of intestinal mucosa.
Genetic Polymorphisms and Activity of Cholesterol Ester Transfer Protein (CETP): Should We Be Measuring Them? (2000)

Cholesteryl ester transfer protein (CETP) is a plasma glycoprotein that mediates the transfer of cholesteryl ester from high density lipoproteins (HDL) to triglyceride-rich lipoproteins in exchange for triglycerides. Several approaches are currently being used in research laboratories to measure its activity and/or mass. However, these assays are not standardized and it is not possible to compare data from different laboratories. Also, we lack enough information to assess the value of this variable as a coronary heart disease (CHD) predictor. Several genetic variants at CETP locus have been identified and they have been generally associated with increased HDL-cholesterol concentrations. However, there is no consensus about the association of this CETP-related increase in HDL-cholesterol and protection against CHD. Nevertheless, the most recent evidence from the common CETP-TaqI-B polymorphism shows that the lower CETP activity associated with the presence of this polymorphism decreases CHD risk in men. Based on this and previous evidence, there has been an interest in the development of CETP inhibitors as a tool to increase HOL-cholesterol, thus reducing CHD risk. However, it should be noted that the evidence about the cardioprotective role of these drugs is not yet available.
Field corn pickers: Tests indicate two operational factors have important effect on field losses (1955)

Corn picker field tests made in Kern and Los Angeles counties in 1954 show that ground speed and snapping roll adjustment are the most important factors determining picking losses.
ADDITION OF THIOGLYCOLIC ACID TO STENDOMYCIN (1974)

Base-catalyzed addition of thioglycolic acid to the dehydrobutyrine residue in stendomycinfollowed by hydrolysis and isolation of the newly formed amino acid (S-carboxy-methyl-β-methylcysteine) provided a pair of optically active diastereoisomers. Thus, the addition of the thiol to the double bond is stereoselective and is governed by thearchitecture of the molecule of the antibiotic.
Valvular Disease and Myocardial Infarctions in a Patient With Behçet Disease (2003)

Cardiac involvement occurs in less than 5% of Behçet patients, and coincidence of regurgitation of the aortic and mitral valves and myocardial infarctions is rare. This report describes a 49-year-old Turkish man with Behçet disease (BD) of 6 years' duration who presented with reduced left ventricular function. Both aortic and mitral valves had to be replaced. Five months later, the patient presented with non-ST segment elevation myocardial infarction. Only 1 month later, the patient was successfully resuscitated after an acute ST segment elevation inferior myocardial infarction. Coronary arteries were normal in appearance at angiography before valvular replacement and at autopsy 2 years later. This report should increase awareness of cardiac involvement in BD and its potential danger. Even in BD patients without atherothrombotic plaques, myocardial infarctions can happen. Early and adequate immunosuppressive treatment might have reduced cardiac morbidity in this patient.
Fabrication and Characterisation of Nanoscale Ni-CGO Electrode from Nano-Composite Powders (2019)

Incorporating nanoparticles into SOC electrode is a viable method to improve the electrochemical performance. In this work, nanoparticles of NiO and gadolinia-doped ceria (CGO) approximately 10 nm in diameter fabricated using a continuous hydrothermal flow synthesis are made into nano-structured SOC fuel electrodes via mixing and co-sintering. Both the Ni and CGO are of 50-100 nm in diameter in the final electrode. FIB-SEM 3-D tomography is carried out on the nanoscale Ni-CGO electrode which has been aged for 70 h, showing a high active triple phase boundary density of 3 µm-2 and a high active double phase boundary density of 2 µm-1. The total polarisation resistance of the electrode is stable at 0.20 Ω cm2 under open circuit conditions at 800 °C annealing in humidified 5% H2-N2.
Magnetostrictive Behavior of Fe–Si Single-Crystal Films With Different Orientations Under Rotating Magnetic Fields (2014)

Magnetostrictive behaviors of Fe-Si single-crystal hlms are investigated under rotating magnetic helds up to 1.2 kOe. The output waveform of (001) film is triangular, and that of (110) film is bathtub-like, while a (111) film shows very small variation with respect to the angle of the applied magnetic held. The waveforms are different from ideal sinusoidal waveforms. The results indicate that magnetocrystalline anisotropy is playing an important role on the magnetostrictive behavior. The (001) film shows a typical fourfold anisotropy and the (110) film shows uniaxial-like anisotropy. Considering the magnetocrystalline anisotropy, the complex magnetostrictive behavior can be analyzed by employing a 90° domain wall motion model or a coherent rotation model. The small magnetostrictive behavior of (111) film is due to the opposite signs of λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">100</sub> and λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">111</sub> .
OBJECT RECOGNITION USING ANGLES IN THE PROJECTIVE PLANE (2009)

In this paper, we propose a recognition technique for objects which are represented as closed contours. Our algorithm relies on the angular similarity between the contours and exploits the properties of the Fourier Transform, plane projective geometry and the wavelet transform. An important contribution of the proposed method is that it can recognize objects acquired from any viewing direction (such as oblique) and even when the objects are partially occluded, without finding any conjugate points. The experimental results on an in-house developed geographic database, and the Brown University object database show robust recognition performance.
Depositional Systems in the Woodbine Formation (Upper Cretaceous), Northeast Texas (1971)

RI0073D. Depositional Systems in the Woodbine Formation (Upper Cretaceous), Northeast Texas, by W. B. Oliver. 28 p., 15 figs., 1971. doi.org/10.23867/RI0073D. Downloadable PDF. To purchase this publication in book format, please order RI0073.