gebhart/patrepeval huggingface dataset:
Formation and molecular structure of (.eta.5-cyclopentadienyl)(.eta.4-1,3-dimesityl-2,4-diphenylcyclobutadiene)cobalt. A compound with restricted rotation about an aryl-cyclobutadiene bond (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation and molecular structure of (.eta.5-cyclopentadienyl)(.eta.4-1,3-dimesityl-2,4-diphenylcyclobutadiene)cobalt. A compound with restricted rotation about an aryl-cyclobutadiene bondMarvin D. Rausch, Gerald F. Westover, Eric Mintz, George M. Reisner, Ivan Bernal, Abraham Clearfield, and Jan M. TroupCite this: Inorg. Chem. 1979, 18, 9, 2605–2615Publication Date (Print):September 1, 1979Publication History Published online1 May 2002Published inissue 1 September 1979https://doi.org/10.1021/ic50199a053RIGHTS & PERMISSIONSArticle Views114Altmetric-Citations55LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (1 MB) Get e-AlertsSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Thermodynamics of Microemulsions Revisited (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermodynamics of Microemulsions RevisitedEli RuckensteinCite this: Langmuir 1994, 10, 6, 1777–1779Publication Date (Print):June 1, 1994Publication History Published online1 May 2002Published inissue 1 June 1994https://pubs.acs.org/doi/10.1021/la00018a026https://doi.org/10.1021/la00018a026research-articleACS PublicationsRequest reuse permissionsArticle Views201Altmetric-Citations4LEARN 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
EVALUATION OF EXPERIMENTAL POLYMERS FOR DIELECTRIC APPLICATIONS. FURTHER EVALUATION OF DIFFERENTIAL THERMAL ANALYSIS AND THERMOGRAVIMETRIC ANALYSIS AS MEANS OF DETERMINATING THERMAL STABILITY Of ORGANIC POLYMERS. THERMOGRAVIMETRIC INVESTIGATIONS. Quarterly Progress Report No. 3 for October 5, 1958 to January 5, 1959 (1959)

The 2l polymers, originally obtadned from WADC, and five additional conventional polymers were subjected to differential thermal analysis in ambient air. Five of the 21 polymers were also subjected to thermogravimetric analysis in ambient air. (auth)
Sensor strip cover: maximizing network lifetime on an interval (2012)

Suppose that n sensors are deployed on a one-dimensional region (a strip, or interval) that we wish to cover with a wireless sensor network. Each sensor is equipped with a finite battery, and has an adjustable sensing range, which we control. If each sensor's battery drains in inverse linear proportion to its sensing radius, which schedule will maximize the lifetime of the resulting network? We study this Sensor Strip Cover problem and several related variants. For the general Sensor Strip Cover problem, we analyze performance in both the worst-case and average-case for several algorithms, and show that the simplest algorithm, in which the sensors take turns covering the entire line, has a tight 3/2-approximation ratio. Moreover, we demonstrate a more sophisticated algorithm that achieves an expected lifetime of within 12% of the theoretical maximum against uniform random deployment of the sensors. We show that if the sensing radii can be set only once, then the resulting Set Once Strip Cover problem is NP-hard. However, if all sensors must be activated immediately, then we provide a polynomial time algorithm for the resulting Set Radius Strip Cover problem. Finally, we consider the imposition of a duty cycling restriction, which forces disjoint subsets of the sensors (called shifts) to act in concert to cover the entire interval. We provide a polynomial-time solution for the case in which each shift contains at most two sensors. For shifts of size k, we provide worst-case and average-case analysis for the performance of several algorithms.
Dynamic structure in nanoclusters and its effect on size & shape modeling (2014)

As recently as 10-15 years ago, nanoparticles were described qualitatively: oblate and hemispherical, discs and rafts. Today we discriminate between different faceted nano-architectures with unprecedented accuracy using EXAFS. As an illustration (Fig. 1), we will describe a Pt particle in equilibrium with support and adsorbate. We will show how to resolve analytically metal-support, metal-adsorbate, and support-adsorbate and obtain the size and shape information. We will show new methods for circumventing the main limitation of EXAFS analysis. EXAFS works best for ordered systems while nanoparticles have strong, asymmetric bond length disorder. They also have nonbulklike dynamics: the surface bonds are soft, while the interior bonds are stiff, resulting in a bimodal distributions of bonds. This heterogeneity, if not accounted for, results in smaller coordination numbers and, hence, in smaller particle sizes compared to the actual ones [1]. Conventional EXAFS analysis, based on the solution of "inverse problem" where experimental spectra is an input, and the unknown cluster architecture is an output, is unstable for systems with strong and asymmetric disorder. We will present a new methodology for the analysis of nm-scale clusters based on solving "direct problem". The starting point is the model system investigated using DFT-MD simulations to produce theoretical EXAFS signals that could be directly compared to the experimental results. The information that is learned from theory can be compared with traditional EXAFS fitting results to identify and rationalize any errors in the experimental fit. Our study, using both supported [2] and unsupported [3] clusters, demonstrates that DFT-MD simulations accurately depict complex experimental systems, and shows the advantages of using a combined experimental/theoretical approach over standard EXAFS fitting methodologies for determining the structural and dynamic parameters of metallic nanoparticles.
Three-Coordinate, 12-Electron Organometallic Complexes of Iron(II) Supported by a Bulky β-Diketiminate Ligand:  Synthesis and Insertion of CO To Give Square-Pyramidal Complexes (2002)

The preparation of a series of three-coordinate, 12-electron organometallic complexes of iron(II) supported by a bulky β-diketiminate ligand is described. The thermally stable complexes LFeR (R = Et, CH2tBu, iPr) are three-coordinate in both the solid state (single crystal X-ray diffraction) and solution. They react rapidly with CO to form the diamagnetic complexes LFe(CO)2(COR), which have an unusual square-pyramidal geometry. Spectroscopic and crystallographic studies show that the acyl group is in the axial position. As a result, there are two orientations of the acyl group about the Fe−C bond, and the isomeric ratio is dependent on the size of R. The two isomers are in equilibrium in solution at room temperature.
A High Performance Nonlinear Compensation Algorithm with Reduced Complexity Based on XPM Model (2014)

A high performance nonlinear compensator is proposed based on XPM model. It achieves 1.7 dB Q improvement with 80% complexity reduction. It tolerates asynchronous process among multi-channels and the information interconnection speed far below baudrate.
Internal Combustion Impulse Source vs. Mini-vibrator vs. Nomad 65 vibrator shot tests (2013)

Over the last two decades 3D reflection seismic has been applied for mine planning in South Africa. For coal exploration, the mining targets are at shallower depths of less than 400 m. The challenge set by the mining companies is to obtain high-resolution seismic data with maximum vertical resolution at this depth of investigation. The cost of geophysics must also be more attractive than that of the ‘total drilling’ alternative. Seismic source trials were therefore conducted at one mine site. The ICIS (Internal Combustion Impulse Source) has been developed by CGG to provide a solution for shallow target surveys and for in-fills where access for conventional sources is restricted. The ICIS and Mini-vibrator performance were tested in shallow coal prospects, where existing 2D data have been acquired by Nomad 65 heavy vibrator. The tests demonstrated that ICIS is well suited to image target depths less than 500 m with frequencies up to 100 Hz. The comparison with the vibroseis sources showed that ICIS I) Delivered very good near offset data (> 50 m) and for up-hole/low velocity layer survey ii) Required more shots per shot point in the medium offset range (1000 m) due to its low energy iii) Not designed for far offset data (3000 m). ICIS was found to be a viable geophysical and logistic solution for certain high-resolution mineral surveys.
An easily constructed water separator (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAn easily constructed water separatorAlbert W. M. Lee Cite this: J. Chem. Educ. 1983, 60, 7, 595Publication Date (Print):July 1, 1983Publication History Received3 August 2009Published online1 July 1983Published inissue 1 July 1983https://doi.org/10.1021/ed060p595RIGHTS & PERMISSIONSArticle Views196Altmetric-Citations1LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InReddit PDF (338 KB) Get e-Alerts Get e-Alerts
The Skraup Reaction with Acrolein and its Derivatives<sup>1</sup> (1948)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Skraup Reaction with Acrolein and its Derivatives1Harry L. Yale and Jack BernsteinCite this: J. Am. Chem. Soc. 1948, 70, 1, 254Publication Date (Print):January 1, 1948Publication History Published online1 May 2002Published inissue 1 January 1948https://pubs.acs.org/doi/10.1021/ja01181a075https://doi.org/10.1021/ja01181a075research-articleACS PublicationsRequest reuse permissionsArticle Views521Altmetric-Citations21LEARN 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
Spinal Antinociception by Dexmedetomidine, a Highly Selective α<sub>2</sub>‐Adrenergic Agonist (1991)

The antinociceptive effects of dexmedetomidine, a highly selective new alpha 2-adrenoceptor agonist, were evaluated in rats after intrathecal, intraperitoneal and subcutaneous administration. Antinociception was tested using the tail-flick method. Both 3 and 6 micrograms of intrathecal dexmedetomidine produced maximal antinociception within 10 min. The effect lasted for up to 6 hr. The smaller dose of 1.5 micrograms produced a mean antinociception of 50% (of the maximum possible effect, MPE%) which lasted for about 2 hr. Subcutaneous atipamezole, a specific alpha 2-adrenergic antagonist completely abolished the antinociception produced by intrathecal dexmedetomidine. When given intraperitoneally, dexmedetomidine produced on average a 50% antinociceptive effect with the highest dose of 60 micrograms/kg. The lower doses of 10 and 30 micrograms/kg were ineffective. After subcutaneous administration a maximal effect was achieved with 120 micrograms/kg, a 70% effect, on average, with 60 micrograms/kg and a short lasting effect of 60% with 30 micrograms/kg. In conclusion, dexmedetomidine is a very potent antinociceptive agent when given intrathecally to rats.
PD monitoring during type testing of MV cable accessories (2005)

To ensure the reliability of an accessory it is subjected to a type test. These type tests, either conform national or international standards, comprise a multitude of electrical tests. An important part of this type tests is the heating cycle voltage test in which the thermomechanical behaviour of an electrically stressed accessory is tested. Based on the IEC 60502–4 this heating cycle voltage test takes 20 days after which some final tests have to be undertaken to conclude the electrical type test. Before starting these 20 days also some tests (voltage withstand and partial discharge) are performed as a rough check: is it sensible to start the 20 days test or not. However, during this heating cycle voltage test no additional measurements are to be performed, leaving us “blind”. Normally speaking the thermomechanical and electrical stresses should not influence the behaviour of the accessory, but in case it does it will only appear at the end of the 20 days test (or earlier in case of a breakdown). This is not an imaginary situation because experience has shown that, depending on the type of accessory, on average 20. 50 % of all type tested accessories do not comply with the requirements [1]. In that case, possible crucial information remains undetected during these 20 days. To avoid this and give the manufacturer insight in the behaviour of the accessory, an on-line partial discharge (PD) detection and location system has been developed.
Large scale multiplexing a point sensor for methane gas detection (2003)

This paper has reported the design and installation of a highly multiplexed (45 point) methane gas detection system using single mode fibre optics linked to remote miniature open path absorption cells interrogated by a single DFB laser diode configured for frequency modulation spectroscopy. To our knowledge this is the first such system to be site tested. The system operates over a wide area with total link lengths from source to detector extending up to about 6 km and has proved to be rugged and stable through the operating conditions on an active methane gas producing landfill site. Initial results on a small scale trial system give optimism for future reliability and the system behaviour will continue to be closely observed. It also seems very probable that the data obtained from continuous positioning will give new insights into site dynamics. Within its present configuration the system could be readily extended to address 64 points though we believe that, for this application, a 128 point system is totally feasible and a 256 point system may be achievable.
A Study of Stress Effects on Βeta-Phase Precipitation in Al-Mg Alloys Using in-situ TEM (2012)

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.
Radicals of isobacteriochlorins: models of siroheme and sirohydrochlorin (1979)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRadicals of isobacteriochlorins: models of siroheme and sirohydrochlorinP. F. Richardson, C. K. Chang, L. D. Spaulding, and J. FajerCite this: J. Am. Chem. Soc. 1979, 101, 26, 7736–7738Publication Date (Print):December 1, 1979Publication History Published online1 May 2002Published inissue 1 December 1979https://pubs.acs.org/doi/10.1021/ja00520a029https://doi.org/10.1021/ja00520a029research-articleACS PublicationsRequest reuse permissionsArticle Views92Altmetric-Citations16LEARN 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
Fusarium Head Blight of Cultivated and Natural Wild Rice (<i>Zizania palustris</i>) in Minnesota Caused by <i>Fusarium graminearum</i> and Associated <i>Fusarium</i> spp. (1999)

Symptoms of Fusarium head blight on diseased wild rice seed from both cultivated fields and natural stands are shrunken, light weight seeds discolored light tan to light brown with infrequent light pink due to mycelial growth of Fusarium spp. F. graminearum was the predominant species isolated from whole seed at all growth stages, and from shattered seed gathered from four fields in 1994 to 1995. F. anthophilum and F. subglutinans were also frequently isolated at most growth stages, whereas F. acuminatum, F. culmorum, F. solani, and F. semitectum were infrequently isolated at one or more growth stages, and F. camptoceras was isolated only from shattered seed. F. graminearum was the only species isolated from processed seed, although rarely. Fusarium spp. were isolated at the highest percentage from shattered seed. The highest percentage of total Fusarium spp. isolated during seed development was at the milk and dough stages in a cultivated field and at the milk stage in a natural stand; the percentage then declined until the ripe stage in seed from both sites. There were no significant differences in the percentages of Fusarium spp. isolated at growth stages between seed from the cultivated field and from the natural stand. Fusarium spp. were isolated most frequently from whole seed grown in three cultivated fields, compared with the palea and lemma, and caryopsis. F. graminearum and F. anthophilum were frequently isolated from whole seed and all seed structures, whereas F. culmorum and F. sporotrichioides were isolated only from whole seed, F. moniliforme from whole seed, palea and lemma, and caryopsis, and F. subglutinans from whole seed and the palea and lemma only. Deoxynivalenol and nivalenol were identified in three isolates of F. graminearum; however, none of the seed samples from which the isolates were obtained yielded either mycotoxin. Survival of Fusarium spp. in diseased seed was similar from both cultivated and natural sources and occurs in whole seed not immersed in water but not in seed immersed in water.Survival was better in seed stored at 4°C than at -20°C. F. graminearum was reisolated from 81% of seed from inoculated plants but not from seed of noninoculated plants. Pathogenicity of other Fusarium spp. remains to be demonstrated.
EXTRACTING SEMANTICS OF Individual PLACES FROM MOVEMENT DATA BY ANALYZING TEMPORAL PATTERNS OF VISITS (2013)

Data reflecting movements of people, such as GPS or GSM tracks, can be a source of information about mobility behaviors and activities of people. Such information is required for various kinds of spatial planning in the public and business sectors. Movement data by themselves are semantically poor. Meaningful information can be derived by means of interactive visual analysis performed by a human expert; however, this is only possible for data about a small number of people. We suggest an approach that allows scaling to large datasets reflecting movements of numerous people. It includes extracting stops, clustering them for identifying personal places of interest (POIs), and creating temporal signatures of the POIs characterizing the temporal distribution of the stops with respect to the daily and weekly time cycles and the time line. The analyst can give meanings to selected POIs based on their temporal signatures (i.e., classify them as home, work, etc.), and then POIs with similar signatures can be classified automatically. We demonstrate the possibilities for interactive visual semantic analysis by example of GSM, GPS, and Twitter data. GPS data allow inferring richer semantic information, but temporal signatures alone may be insufficient for interpreting short stops. Twitter data are similar to GSM data but additionally contain message texts, which can help in place interpretation. We plan to develop an intelligent system that learns how to classify personal places and trips while a human analyst visually analyzes and semantically annotates selected subsets of movement data.
A Coupled Diffusion Synthetic Acceleration for Binary Stochastic Mixture Transport Iterations (2008)

The standard model for transport through binary stochastic media involves two coupled transport equations. Previous research has shown that several types of source iterations applied to the solution of these equations can converge arbitrarily slowly when one or both of the materials is optically thick and diffusive. In this work, we derive, analyze, and implement an acceleration scheme for binary stochastic mixture transport iterations. The equations are derived using the modified four-step method and take the form of discretized coupled diffusion equations. A Fourier analysis indicates that for a wide variety of physical problems and spatial mesh sizes, the scheme is rapidly convergent. Spectral radii measured during these accelerated iterations compare very well with Fourier analysis predictions.