gebhart/patrepeval huggingface dataset:
Ethanol Conversion to Ethylene Using Metal-Mordenite Catalysts (2006)

The aqueous ethanol conversion was investigated on dealuminated mordenite (DM) and a series of DM/metal catalysts prepared by impregnation (IMP) and solid-state ion exchange (SSIE). The catalysts were characterized by X-ray fluorescence (XRF), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FT-IR), nitrogen adsorption method (BET). The conversion of aqueous ethanol (10.0%) on mordenite/metal catalysts was compared at temperature of 350℃. reaction time of 1 h, WHSV (weight hourly space velocity) of 1 h^(-1) and catalyst weight of 1 g. The product is mainly ethylene with small quantity of other light olefins. At higher temperature (550℃) methane was formed as a result of decomposition reaction. Among several metals (Zn, Mn, Co, Rh, Ni, Fe and Ag) which were incorporated onto the mordenite to prepare DM/single and mixed metal catalysts tested in this work, it was found that DM/Zn and DM/Zn-Ag catalysts prepared by impregnation method gave the highest selectivity to ethylene. For DM/Ni catalyst, it showed high selectivity to ethane due to its hydrogenation ability.
The Air of Poverty (1971)

(1971). The Air of Poverty. Environment: Science and Policy for Sustainable Development: Vol. 13, No. 5, pp. 2-9.
Common randomness in information theory and cryptography. II. CR capacity (1998)

For pt.I see ibid., vol.39, p.1121, 1993. The common randomness (CR) capacity of a two-terminal model is defined as the maximum rate of common randomness that the terminals can generate using resources specified by the given model. We determine CR capacity for several models, including those whose statistics depend on unknown parameters. The CR capacity is shown to be achievable robustly, by common randomness of nearly uniform distribution no matter what the unknown parameters are. Our CR capacity results are relevant for the problem of identification capacity, and also yield a new result on the regular (transmission) capacity of arbitrarily varying channels with feedback.
Supramolecular structures based on dimetal units: simultaneous utilization of equatorial and axial connections (2001)

As determined by X-ray crystallography, tetranuclear metal–metal bound molecular loops [Rh2(DAniF)2]2- (O2CCH2CO2)2 (DAniF = N,N′-di-p-anisylformamidinate) react with 2-N donor linkers to give a tubular structure {[Rh2(DAniF)2]2(O2CCH 2CO2)2(NC5H4CHCHC 5H4N)2}n 1, and a sheet-like structure with interstitial dichloromethane molecules for [Rh2(DAniF)2]2(O2CCH2 - CO2)2(NCC6H4CN) 2}n 2; when the assembly unit was changed from [Rh2(DAniF)2(O2CCH2CO2 )]2 to the square [Rh2(DAniF)2(O2CCO2)]4 and the linker NCC6F4C6F4CN was used, the compound {[Rh2(DAniF)2]4(O2C CO2)4(NCC6F4C6 F4CN)4}n 3, was formed, in which there are infinite tubes of square cross section having entrained CH2Cl2 molecules.
Condensation Derivatives in Corticosteroid Side Chains. IV. Aldosterone 20,21-Cyclic Acetals<sup>1,2</sup> (1963)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTCondensation Derivatives in Corticosteroid Side Chains. IV. Aldosterone 20,21-Cyclic Acetals1,2Rinaldo Gardi, Romano Vitali, and Alberto ErcoliCite this: J. Org. Chem. 1963, 28, 5, 1440–1441Publication Date (Print):May 1, 1963Publication History Published online1 May 2002Published inissue 1 May 1963https://pubs.acs.org/doi/10.1021/jo01040a541https://doi.org/10.1021/jo01040a541research-articleACS PublicationsRequest reuse permissionsArticle Views48Altmetric-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
[Correlation between the airway inflammations and levels of stromal cell-derived factor 1 in induced sputum of asthmatic patients]. (2011)

SDF-1 and IL-17 may contribute to airway inflammation in asthma by chemotactic activity towards neutrophils. The concentration of SDF-1 may be used to evaluate the inflammation and the therapeutic effects.
Personal service environments--openness and user control in user-service interaction (2001)

Abstract. We describe an approach for mobile and personalized use of electronic services that meet very high requirements on openness, user control, and mobility. The design is centered on the concept of personal service environments. These offer users mobile and network independent access to services from many different types of devices. The concept also allows services to interact locally. This can be used in several ways: services can for example share information but also make use of each other’s services. In particular, we want to use this to support service personalization. The design has been successfully implemented and tested with a number of sample services and in several related research projects. This implementation, the sView system, is described.
Gray cyclic-coding generation using <i>R</i> – <i>S</i> bistable circuits (1967)

An arrangement of n bistable circuits to generate Gray cyclic-coding sequences is disclosed, these n circuits being directly clocked by an auxiliary binary counter consisting of n − 1 stages. Deliberate desynchronisation of the auxiliary driving counter and the coding generator allows different pattern-coding sequences to be generated, with no change of interconnections.
A Fair Polling Scheme for Energy Harvesting Wireless Sensor Networks (2015)

Energy harvesting wireless sensor network (EHWSNs) are being actively studied in order to solve the problems faced by battery-operated WSNs, namely the cost for battery replacement and impacts on the environment. In EH-WSNs, each node harvests ambient energy, such as light, heat, vibration, and uses it for sensing, computations, and wireless communications, where the amount of harvested energy of each node varies depending on their surrounding environments. MAC protocols for EH-WSNs need to be designed to achieve high throughput and fairness, however, the conventional MAC protocols proposed for EH-WSNs do not adapt to the harvesting rate of each node, resulting in poor fairness. In this paper, we propose a fair MAC protocol based on polling scheme for EH-WSNs. The proposed scheme adjusts contention probability of each node according to the individual harvesting rate, thereby increasing throughput achieved by nodes with low harvesting rate. We evaluate throughput and fairness of the proposed fair polling scheme by computer simulations, and show that the proposed scheme can improve fairness with little degradation of the overall network throughput.
Single Molecule Rotational and Translational Diffusion Observed by Near-Field Scanning Optical Microscopy (1997)

We have observed rotational and translational diffusion of single molecules using a near-field scanning optical microscope with two polarization detection channels. The measurements were performed under ambient conditions with the molecules dispersed on glass or embedded in polymer. In successive images the fluorescence of single molecules was followed over about 1 h, with 10 ms integration time, until photodissociation. The position of single molecular fluorescence could be located with an accuracy of 1 nm. From the lateral diffusion of Rhodamine 6G molecules on glass during successive images, a diffusion constant of (6.7 ± 4.5) × 10-15 cm2/s was determined. The orientation of the in-plane emission dipole of all molecules in one image could be directly determined with an accuracy of a few degrees by simultaneous detection in two perpendicular polarization directions. By rotating the excitation polarization we could selectively excite different sets of molecules and compare their in-plane absorption and emission dipole orientation. Monitoring DiI molecules in PMMA over 1 h, we found rotation of less than 10° for the majority of molecules, while incidental fast rotation and transition to a dark state occurs. The fluorescence intensity was observed to be molecule dependent, which is an indication for out-of-plane orientation and different local photophysical environment.
Boundary Control of Full-Bridge ZVS: Natural Switching Surface for Transient and Steady-State Operation (2013)

This paper presents the use of a high-performance boundary controller for the full-bridge zero-voltage-switching topology. An enhanced dynamic response is obtained by employing the natural switching surface (SS), which is thoroughly derived in the normalized geometrical domain. The advantages of the normalization are the simple graphical representation, the generality for any combination of parameters, and the mathematical simplicity. Recently, nonisolated basic topologies have benefited from advancements in boundary control. The analysis and derivation in this work bring the benefit of outstanding dynamic performance to this isolated topology. As demonstrated in this work, the relationship between the leakage and output filter inductances makes the formulation of the natural trajectories for isolated converters possible. The resulting SS provides an excellent dynamic response during start-up, reference change, and sudden output loading conditions. Experimental results are presented to illustrate the characteristics and advantages of the control scheme and the converter operation with fixed switching frequency.
Artificial Psychoses Produced by Mescaline (1936)

Progress in general medicine is brought about by clinical observation or carefully controlled experimental research. In psychiatry there is little opportunity for the latter approach. One of the few methods available at the present time is the use of intoxicating drugs. It was Kraepelin who first emphasized the importance of studying psychological changes produced by drugs. Following his lead many observers have tested their action on various psychic faculties. Copious data have been collected about such agents as alcohol, caffeine, hyoscine and cocaine. But the value of these observations in bringing about an understanding of the psycho-pathology of the major psychoses is limited, since it is rarely possible to produce the picture of a true psychosis without giving the drug in amounts sufficient to bring about dangerous or chronic intoxication.
Power flow finite element analysis of beam networks (1988)

A power flow analysis was previously developed for predicting the vibration response of structural and acoustic systems to high frequencies at which the traditional finite element method is no longer practical [D. J. Nefske and S. H. Sung, ASME NCA 3, 47–54 (1987)]. As compared to statistical energy analysis, which predicts an overall vibration response of each individual subsystem, the power flow analysis enables one to predict the spatial variation of the vibration response within each subsystem, as well as the power flow and vibration response throughout the entire system. The present paper considers application of the power flow method to built-up frame structures in the form of beam networks. The power flow analysis considers excitation of multiple wave types in the individual beams and utilizes transmission efficiencies to couple the wavetypes at the beam junctions. The power flow solution is obtained by modifying the properties of a standard structural finite element model to form a power flow finite element model, which is then solved using MSC/NASTRAN. The predictions of the power flow finite element method are compared with the measured vibration on an actual structure and with the predictions of the traditional finite element method.
Multiprocessor real-time threads (1992)

Portability is an important attribute of real-time operating systems because their target hardware environments routinely vary from special purpose processors to parallel machines to distributed execution environments. In this paper, we address the issue of operating systems portability by development of a real-time threads package based on the Mach cthreads interface. Real-time threads have been implemented on standard Unix platforms and on a 32-node BBN Butterfly multiprocessor. In contrast to cthreads, the schedulability of real-time threads may be determined dynamically at the time of threads creation. In addition, any scheduling guarantees made at thread creation time are maintained when threads communicate or cooperate using the package's other primitives.
Sorption and Vapor Transmission Properties of Uncompressed and Compressed Microcellular Starch Foam (2002)

Microcellular starch foams (MCFs) are made by a solvent-exchange process and consist of a porous matrix with pores generally ranging from approximately 2 microm to submicrometer size. MCF may potentially be useful as a slow-release agent for volatile compounds because of its ability to sorb chemicals from the atmosphere and to absorb liquids into its porous structure, and because it can be compressed to form a starch plastic. MCF made of high-amylose corn and wheat starches was prepared with or without 2% (w/w) silicone oil (SO) or palmitic acid (PA). The MCF was loaded with 1% of various volatile compounds with vapor pressures ranging from 0.02 to 28 mm. The MCF depressed the vapor pressure from 0.37 to 37% compared to a control containing no MCF. Incorporating SO or PA in the matrix of the MCF had little effect on sorption of volatiles. Compressing MCF at 1.4, 6.9, and 69 MPa made a starch plastic with varying porosity. The vapor transmission rate of various volatile compounds through MCF was positively correlated to the vapor pressure of the test compound but was inversely proportional to the compression force used to form the starch plastic. The results indicate that uncompressed and compressed MCFs could be effective slow-release agents for a variety of volatile compounds, especially if used together.
Repetitive Linear Transformer Driver Using Power MOSFETs (2012)

A compact pulsed-power generator based on a linear-transformer-driver scheme has been developed and tested. It consists of ten modules using a total number of 350 power metal-oxide-semiconductor field-effect transistors as switches. It is capable of generating a peak output voltage of 9 kV and a peak output current of 175 A, with a pulselength of ~ 42 ns and a repetition rate of 1 kHz. The overall system efficiency is estimated to be ~ 59%.
Mechanical Destruction of Young and Old Foam Films. (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanical Destruction of Young and Old Foam Films.J. J. BikermanCite this: J. Phys. Chem. 1952, 56, 2, 164–165Publication Date (Print):February 1, 1952Publication History Published online1 May 2002Published inissue 1 February 1952https://pubs.acs.org/doi/10.1021/j150494a002https://doi.org/10.1021/j150494a002research-articleACS PublicationsRequest reuse permissionsArticle Views79Altmetric-Citations9LEARN 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
Automatic segmentation of overlapping nuclei with high background variation using robust estimation and flexible contour models (2004)

We present a segmentation method that works for overlapping and closely packed nuclei in noisy images that have high variation in background intensity. The method has been tested on fluorescence in-situ hybridisation images of interphase leucocyte nuclei. Accurate segmentation is required in support of an automatic procedure for assaying telomere content on a per area per nucleus basis. The method first finds a single seed point for each nucleus that uniquely identifies that nucleus. Seed points are located by an efficient iterative mode-finding algorithm based on robust nonparametric density estimation. Acting simultaneously on all nuclei in the image, and using the seed points as origins, flexible closed contours are dilated until each nucleus is circumscribed. Unlike previous approaches, the contour equations include a repulsive term that prevents different contours from intersecting, thereby preserving the identity of nearby or overlapping nuclei, and the contour is adaptively remeshed for greater efficiency The locations of the seed points are not critical in providing an accurate segmentation. The advantage of this method from an implementation point of view is that the computation of seed points and contours is highly efficient and robust compared with alternative approaches. The method is illustrated using data from a clinical pilot study.
Resonance Raman Scattering of Br<sub>2</sub> Doped Single-Walled Carbon Nanotube Bundles (2000)

Abstract We have measured Raman spectra of bromine doped single-walled carbon nanotubes (SWNTs) using various laser lines to clarify the electronic states of the doped SWNT. In the case of evacuated sample after full doping, two breathing mode peaks were observed simultaneously by visible laser excitations. We assigned the higher frequency peak to the doped SWNT bundles, and the other peak to the undoped portions in the sample. Intensity ratio between them decreased with decreasing excitation energy, and in the infrared region, the breathing mode band of the doped bundle was not observed. These results can be explained by a simple rigid band model.
Robotic grasping and contact: a review (2002)

In this paper, we survey the field of robotic grasping and the work that has been done in this area over the last two decades, with a slight bias toward the development of the theoretical framework and analytical results in this area.
Global vector-field reconstruction by using a multivariate polynomial<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="italic">L</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>approximation on nets (1994)

A multivariate polynomial ${\mathit{L}}_{2}$ approximation on nets is designed for global vector-field reconstructions of time continuous dynamical systems. The technique is tested by investigating standard forms of the R\"ossler band, the Lorenz mask, and a chaotic attractor produced by a simple model of thermal lens oscillations.
Dual Role of Interleukin-23 in Epicutaneously-Sensitized Asthma in Mice (2014)

IL-23 expressed in the skin during the sensitization phase plays an essential role in the development of allergic phenotypes, whereas IL-23 in the airways during the challenge phase suppresses airway hyperresponsiveness.
High-speed Digital and Analog Charge-Discharge Microring Modulator Not Limited by Q-factor (2013)

A new Charge-Discharge microring modulator configuration having RF-bandwidth and extinction ratio not limited by Q-factor is presented. Digital and linear analog modulation bandwidth over 50GHz are shown to be feasible.
Optical system for light scattering experiments (1979)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text William S. Bickel, "Optical system for light scattering experiments," Appl. Opt. 18, 1707-1709 (1979) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Development of MAG3 p-nitrophenyl ester for technetium-99m and rhenium-188 labeling of amines and peptides (1994)

Conjugate labeling by active ester chemistry is a well-established method for labeling peptides and proteins with technetium and rhenium. The easy preparation and high conjugations yields presented in this paper show that both {sup 188}Re and {sup 99m}Tc-MAG{sub 3} p-nitrophenyl esters are promising agents for labeling a wide range of biomolecules for radio therapy or diagnostic imaging.
Inhibition of Hepatitis C Virus Replicon RNA Synthesis by PSI-352938, a Cyclic Phosphate Prodrug of β-<scp>d</scp>-2′-Deoxy-2′-α-Fluoro-2′-β-<i>C</i>-Methylguanosine (2011)

PSI-352938 is a novel cyclic phosphate prodrug of β-D-2'-deoxy-2'-α-fluoro-2'-β-C-methylguanosine 5'-monophosphate that has potent activity against hepatitis C virus (HCV) in vitro. The studies described here characterize the in vitro anti-HCV activity of PSI-352938, alone and in combination with other inhibitors of HCV, and the cross-resistance profile of PSI-352938. The effective concentration required to achieve 50% inhibition for PSI-352938, determined using genotype 1a-, 1b-, and 2a-derived replicons stably expressed in the Lunet cell line, were 0.20, 0.13, and 0.14 μM, respectively. The active 5'-triphosphate metabolite, PSI-352666, inhibited recombinant NS5B polymerase from genotypes 1 to 4 with comparable 50% inhibitory concentrations. In contrast, PSI-352938 did not inhibit the replication of hepatitis B virus or human immunodeficiency virus in vitro. PSI-352666 did not significantly affect the activity of human DNA and RNA polymerases. PSI-352938 and its cyclic phosphate metabolites did not affect the cyclic GMP-mediated activation of protein kinase G. Clearance studies using replicon cells demonstrated that PSI-352938 cleared cells of HCV replicon RNA and prevented replicon rebound. An additive to synergistic effect was observed when PSI-352938 was combined with other classes of HCV inhibitors, including alpha interferon, ribavirin, NS3/4A inhibitors, an NS5A inhibitor, and nucleoside/nucleotide and nonnucleoside inhibitors. Cross-resistance studies showed that PSI-352938 remained fully active against replicons containing the S282T or the S96T/N142T amino acid alteration. Replicons that contain mutations conferring resistance to various classes of nonnucleoside inhibitors also remained sensitive to inhibition by PSI-352938. PSI-352938 is currently being evaluated in a phase I clinical study in genotype 1-infected individuals.
Direct Comparison of Subglottal and Esophageal Pressure during Speech (1968)

Subglottal air pressure during speech was measured by two methods: (1) by recording from a tracheal catheter, and (2) by recording from a 10-cm-long balloon positioned in the middle third of the esophagus and correcting for the pressure developed by the elastic recoil of the lungs. A simple linear elastic-recoil correction factor was devised. The two measures of subglottal air pressure yielded similar results. Some of the conditions that can produce pressure artifacts in esophageal balloons are discussed. The data also show that peaks in subglottal air pressure are not always associated with phonetic prominence, particularly when several noncontiguous words are emphasized in the same breath group.