gebhart/patrepeval huggingface dataset:
Molecular-dynamics simulations of binary structure II hydrogen and tetrahydrofurane clathrates (2005)

The binary structure II hydrogen and tetrahydrofurane (THF) clathrates are studied with molecular-dynamics simulations. Simulations are done at pressures of 120 and 1.013 bars for temperatures ranging from 100 to 273 K. For the small cages of the structure II unit cell, H2 guest molecule occupancies of 0, 16 (single occupancy), and 32 (double occupancy) are considered. THF occupancies of 0-8 in the large cages are studied. For cases in which THF does not occupy all large cages in a unit cell, the remaining large cages can be occupied with sets of four H2 guest molecules. The unit-cell volumes and configurational energies are compared in the different occupancy cases. Increasing the small cage occupancy leads to an increase in the unit-cell volume and thermal-expansion coefficient. Among simulations with the same small cage occupancy, those with the large cages containing 4H2 guests have the largest volumes. The THF guest molecules have a stabilizing effect on the clathrate and the configurational energy of the unit cell decreases linearly as the THF content increases. For binary THF + H2 clathrates, the substitution of the THF molecules in the large cages with sets of 4H2 molecules increases the configurational energy. For the binary clathrates, various combinations of THF and H2 occupancies have similar configurational energies.
Kinetics and Substituent Effects in Electrophilic Aromatic Substitution. I. Tritylation of Phenol and Its Alkyl Ethers<sup>1</sup> (1966)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics and Substituent Effects in Electrophilic Aromatic Substitution. I. Tritylation of Phenol and Its Alkyl Ethers1Gabriel Chuchani, Héctor Díaz, and Jacob ZabickyCite this: J. Org. Chem. 1966, 31, 5, 1573–1576Publication Date (Print):May 1, 1966Publication History Published online1 May 2002Published inissue 1 May 1966https://pubs.acs.org/doi/10.1021/jo01343a061https://doi.org/10.1021/jo01343a061research-articleACS PublicationsRequest reuse permissionsArticle Views170Altmetric-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
Effect of Milling Media on Properties of Turbomilled Silicon Nitride Slurries (1997)

ABSTRACT Silicon nitride slurries, in the formulation A2Y8, were processed by turbomilling Starck M-l 1 and Shin-Etsu silicon nitride powders for up to 4 hours at a time. Alumina, zirconia, and silicon nitride media were used to determine the effect of the milling media on the properties of the slurries, and the physical properties of the sintered material. After turbomilling for the respective time, disks were pressure cast, dried, and isopressed. They were then continuously sintered at 1790°C for 120 minutes and machined into type B test bars for measurement of density, four-point flexural strength, and fracture toughness. The type of milling media was found to have a measurable effect on the material properties. The results of this work will be presented and discussed.
Application of Mid-IR Laser Spectroscopy for the Analysis of Surgical Smoke (2010)

The composition of surgical smoke was quantitatively analyzed by employing infrared laser spectroscopy. In vitro and in vivo samples were compared. In addition to smoke components, the anesthetic sevoflurane was identified in samples from laparoscopy.
Erratum: Linear optical properties of strained (Si<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:mi mathvariant="italic">n</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>/(Ge<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mo>)</mml:mo></mml:mrow><mml:mrow><mml:mi mathvariant="italic">n</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>superlattices on (001) Si substrates [Phys. Rev. B<b>41</b>, 5112 (1990)] (1990)

N. Read pointed out to me that my calculation of the quasiparticle statistics in these papers is incorrect.I correctly calculated the statistics of a multiplet of quasiparticles, but it is not possible to deduce from it, as I did, the statistics of a single quasiparticle.See Refs. 1 and 2 for the correct calculation.Some other minor errors in the text of [Phys.Rev. B 41, 7653 (1990)]are as follows: (i) The factor of 2 should be omitted in Eq. ( 12); (ii) at the end of Sec.III, the agree- ment with the hierarchy theory should refer only to the charge of the quasiparticles and not to the statistics; (iii) below Eq. ( 31), the q in Nq& /q and Nq & /q should be replaced by pI.I would like to thank N. Read for useful discussions.
Review of Basic Concepts: Space-Vector Analysis (2017)

The space-vector theory has been initially developed with reference to electric machine dynamic study, but has been then extended to the study of any three-phase system, among which the power converters, for several applications. Space-vector theory has been the core around which the all the vector control techniques for electric machines, like field-oriented control and direct torque control, as well as for three-phase active rectifiers, like voltage-oriented control and direct power control, have been developed. Thus, the space-vector is equal to the time rotating vector of phase-A current, and it rotates in space with a constant amplitude with angular speed equal to ω in the positive direction. Another very important feature offered by the space-vector quantity is the possibility to perform a coordinate transformation by means of a vector rotation. This characteristic is particularly important for all the vector-based control techniques.
Signal processing for a laser based air data system in commercial aircrafts (2008)

A systematic approach for the design and implementation of an efficient and reliable signal processing unit able to provide vital flight parameters to the cockpit of an aircraft using a properly built LIDAR equipment is presented in this paper. Taking into account the specific characteristics of a signal coming out from such an optical device we define all the necessary steps for the real-time data acquisition and processing in order to extract accurate information about the true air speed (TAS) of the aircraft and other useful flight parameters. Simulation results using properly modeled signals verified the effectiveness of the suggested methodology. The proposed scheme is being developed in the framework of the EU funded NESLIE research project and aims to be finally flight tested in order to demonstrate the availability of accurate measurements in all weather conditions and in any phase of flight. 1.
Thallium-201 for myocardial imaging: appearance of the normal heart. (1976)

Thallium-201 myocardial perfusion images were obtained from 13 healthy adults after tracer administration both at rest and at maximal stress. On the rest-injected scan, tracer was seen in left ventricular myocardium, liver, and spleen. In two subjects with resting tachycardia, the right ventricular myocardium was slightly visualized after tracer injection at rest. When tracer was administered at stress, the left ventricular activity was more nearly homogeneous and the left ventricle was better defined on the scan. The left-ventricle-to-lung-background activity ratio increased from 2.4 at rest to 3.4 at stress. The right ventricular myocardium was seen on the stress-injected scan. Phantom studies, performed to define the optimum position for visualization of lesions, showed that small lesions were best defined when seen either en face or in tangent. Scans should be performed at stress whenever possible and multiple views are essential.
Signaling through cholesterol esterification: a new pathway for the cholecystokinin 2 receptor involved in cell growth and invasion (2009)

Several studies indicate that cholesterol esterification is deregulated in cancers. The present study aimed to characterize the role of cholesterol esterification in proliferation and invasion of two tumor cells expressing an activated cholecystokinin 2 receptor (CCK2R). A significant increase in cholesterol esterification and activity of Acyl-CoA:cholesterol acyltransferase (ACAT) was measured in tumor cells expressing a constitutively activated oncogenic mutant of the CCK2R (CCK2R-E151A cells) compared with nontumor cells expressing the wild-type CCK2R (CCK2R-WT cells). Inhibition of cholesteryl ester formation and ACAT activity by Sah58-035, an inhibitor of ACAT, decreased by 34% and 73% CCK2R-E151A cell growth and invasion. Sustained activation of CCK2R-WT cells by gastrin increased cholesteryl ester production while addition of cholesteryl oleate to the culture medium of CCK2R-WT cells increased cell proliferation and invasion to a level close to that of CCK2R-E151A cells. In U87 glioma cells, a model of autocrine growth stimulation of the CCK2R, inhibition of cholesterol esterification and ACAT activity by Sah58-035 and two selective antagonists of the CCK2R significantly reduced cell proliferation and invasion. In both models, cholesteryl ester formation was found dependent on protein kinase zeta/ extracellular signal-related kinase 1/2 (PKCzeta/ERK1/2) activation. These results show that signaling through ACAT/cholesterol esterification is a novel pathway for the CCK2R that contributes to tumor cell proliferation and invasion.
Sound-speed determination using matched field processing techniques (1989)

Matched field processing is shown to be effective for estimating sound speed in a deep, range-independent ocean environment. The amplitude and phase of signals from a distant source measured on a large aperture vertical array are sensitive to changes in sound speed. This sensitivity is exploited to infer the environmental sound-speed profile by matching predicted and measured amplitude and phase. A sound-speed profile model is developed based on a modified version of Munk's canonical sound field equation. This model is used to determine sound-speed profile using a 15-Hz signal from a 240-m explosive source detected on a 675-m vertical array at a range of 50 km in a deep-water Pacific environment, characterized by a classical range-independent sound channel at 700 m. The search for the best estimated profile is conducted by varying the sound channel axis strength and depth in the modified Munk equation while maintaining a constant sound-speed profile at great depths. Differences between the estimated and measured profiles are less than ± 2 m/s; the sound channel axis depth is determined within 20 m of the measured axis depth. Extension of this approach to include mesoscale features and greater range is discussed.
Manipulator Motion Control using only Position Information. (1992)

This paper proposes the fast motion control of robot manipulator based on the new acceleration controller. This acceleration controller constructed by using mixed sensitivity problem of H∞ control. The proposed acceleration controller discusses the frequency performance taking sensor noise effect and disturbance rejection into account systematically. This acceleration controller is simple and robust. Moreover, this paper proposes the new fast motion controller based on H∞ acceleration controller. This new fast motion controller is realized by using only information of position, and it makes the multi-degrees-of-freedom motion control system more simple. In this paper, the proposed controller is constructed by the software algorithm of DSP. The experimental results show that the proposed control is valid for motion control of three-degrees-of-freedom robot manipulator.
Differential current-mode signaling for robust and power efficient on-chip global interconnects (2006)

A global interconnect scheme with better current return path control is presented for accurate inductance analysis and robust interconnect design. High performance is obtained by using differential signaling, current-mode sensing, bridge termination, and driver pre-emphasis.
Transcription of <i>ENOD8</i> in <i>Medicago truncatula</i> Nodules Directs ENOD8 Esterase to Developing and Mature Symbiosomes (2008)

In Medicago truncatula nodules, the soil bacterium Sinorhizobium meliloti reduces atmospheric dinitrogen into nitrogenous compounds that the legume uses for its own growth. In nitrogen-fixing nodules, each infected cell contains symbiosomes, which include the rhizobial cell, the symbiosome membrane surrounding it, and the matrix between the bacterium and the symbiosome membrane, termed the symbiosome space. Here, we describe the localization of ENOD8, a nodule-specific esterase. The onset of ENOD8 expression occurs at 4 to 5 days postinoculation, before the genes that support the nitrogen fixation capabilities of the nodule. Expression of an ENOD8 promoter-gusA fusion in nodulated hairy roots of composite transformed M. truncatula plants indicated that ENOD8 is expressed from the proximal end of interzone II to III to the proximal end of the nodules. Confocal immunomicroscopy using an ENOD8-specific antibody showed that the ENOD8 protein was detected in the same zones. ENOD8 protein was localized in the symbiosome membrane or symbiosome space around the bacteroids in the infected nodule cells. Immunoblot analysis of fractionated symbiosomes strongly suggested that ENOD8 protein was found in the symbiosome membrane and symbiosome space, but not in the bacteroid. Determining the localization of ENOD8 protein in the symbiosome is a first step in understanding its role in symbiosome membrane and space during nodule formation and function.
Fabrication of Sintered Thermistor Body of Fe-Al-Si-O System by Solid Reaction Method (1991)

Sintered thermistor body was fabricated by solid reaction method using and Si powder. Surface matrix of sintered body was investigated by SEM and -constant was obtained from measurement of resistance variation in liquid bath. The values of thermistor constant of samples in the temperature range were distributed from 927 to 4005k. This thermistor body can be used as temperature sensor for radiosonde.
Rate of reaction of methyl iodide and hydrazine in aqueous solution (1969)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRate of reaction of methyl iodide and hydrazine in aqueous solutionRobert A. HastyCite this: J. Phys. Chem. 1969, 73, 2, 317–321Publication Date (Print):February 1, 1969Publication History Published online1 May 2002Published inissue 1 February 1969https://pubs.acs.org/doi/10.1021/j100722a007https://doi.org/10.1021/j100722a007research-articleACS PublicationsRequest reuse permissionsArticle Views186Altmetric-Citations3LEARN 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
Adorno and the Ends of Philosophy (2013)

Preface vii Acknowledgements ix Introduction: Contemporary Alternatives 1 1 Negative Philosophy? 22 2 Contradiction as Truth-Content: Adorno and Kant 38 3 Immediacy and Mediation: Hegelian and Adornian Dialectics 54 4 Nature 75 5 Freedom 96 6 Aesthetics and Philosophy 135 Conclusion 175 Notes 189 References 198 Index 205
Local Directed Percolation Probability in Two Dimensions (1998)

Using the series expansion method and Monte Carlo simulation, we study the directed percolation probability on the square lattice V n 0 ={ ( x , y ) ∈ Z 2 : x + y =even, 0 ≤ y ≤ n , - y ≤ x ≤ y }. We calculate the local percolation probability P n l defined as the connection probability between the origin and a site (0, n ). The critical behavior of P ∞ l is clearly different from the global percolation probability P ∞ g characterized by a critical exponent β g . An analysis based on the Padé approximants shows β l =2β g . In addition, we find that the series expansion of P 2 n l can be expressed as a function of P n g .
Impaired T lymphocyte trafficking in mice deficient in an actin-nucleating protein, mDia1 (2007)

Trafficking of immune cells is controlled by directed migration of relevant cells toward chemotactic signals. Actin cytoskeleton undergoes continuous remodeling and serves as machinery for cell migration. The mDia family of formins and the Wiskott-Aldrich syndrome protein (WASP)-Arp2/3 system are two major actin nucleating-polymerizing systems in mammalian cells, with the former producing long straight actin filaments and the latter producing branched actin meshwork. Although much is known about the latter, the physiological functions of mDia proteins are unclear. We generated mice deficient in one mDia isoform, mDia1. Although mDia1(-/-) mice were born and developed without apparent abnormality, mDia1(-/-) T lymphocytes exhibited impaired trafficking to secondary lymphoid organs in vivo and showed reduced chemotaxis, little actin filament formation, and impaired polarity in response to chemotactic stimuli in vitro. Similarly, mDia1(-/-) thymocytes showed reduced chemotaxis and impaired egression from the thymus. These results suggest that mDia1 plays a distinct role in chemotaxis in T lymphocyte trafficking.
GAMMA SPECTROMETRIC DETERMINATION OF HAFNIUM IN ZIRCONIUM (1963)

A method for determining Hf in Zr is described that utilizes radioactivation and spectrometric scintillation gamma analysis. The Hf concentration is determined from measurements of the photopeaks of the 229.5- and 136.2kev levels in the gamma spectra of Hf/sup 175/, Hf/sup 181/, and Zr/sup 95/ . From the Hf activity measured below the 22.5-kev level the pulses from Zr/sup 95/ + Nb/sup 95/ are subtracted, these being recorded simultaneously with the Hf/ sup 175/ and Hf/sup 181/ pulses. As a standard for the determination of Hf in Zr by this method it is necessary to simultaneously activate pure Zr and the unknown specimen under the same conditions, since data from pure Zr is needed for determination of the conversion constant. Development of this method for comparative determinations is described. For this purpose it is sufficient to compare a sample containing known Zr and Hf quantities with the activities of the unknown specimens, the conversion constant of Zr not being necessary. (BBB)
Development of polycrystal GaAs solar cells. Quarterly technical progress report No. 1, January 15-April 30, 1979 (1979)

The objective of this program is to develop a thin film GaAs solar cell technology with the potential of yielding cells with 12 to 15% efficiency and to develop thin film growth techniques which are compatible with the low cost production goal of $500/kW-peak. Progress is reported on a study of junction formation in large grain polycrystal GaAs; characterization of the electronic properties of polycrystal GaAs grown by MBE on low cost foreign substrates; optimizing the structure of AlGaAs-GaAs heterojunction Schottky barrier solar cells; and a variety of grain boundary measurements, including Scanning Light Microscopy (SLM), Deep Level Transient Spectroscopy (DLTS), SIMS, and temperature dependent resistivity.
Improving chemically amplified resist modeling for 2D layout patterns (2003)

Physical insight into acid movement in Fickean and non-Fickean diffusions is illustrated for chemically-amplified (CA) resist system. According to this new insight, we propose two diffusion-sensitive patterns for the detection of acid diffusion, which are a sequentially double exposed cross pattern and standing waves from an isolated trench. Their shapes on the wafer are highly dependent on the type of acid diffusion in photoresist. By comparing the simulated shapes of these two patterns with experimental SEM measurements, a method of characterizing PEB modeling is developed. This new method can distinguish Fickean and non-Fickean diffusion and extract post-exposure (PEB) parameters accurately. This method is applied to APEX-E and UV210 and shows that reduced non-Fickean diffusion models both of these resists the best. The development thresholds for both 1D and 2D patterns under various image slopes are systematically investigated for APEX-E and UV210. A programmed foreground and background double exposure is applied to vary the image slope. This study demonstrates that thresholds for 2D trench end patterns are higher than that for 1D trenches. Except for the threshold for 1D trenches in UV210, which remains a constant regardless of image slope, all thresholds increase as image slope decreases. Thresholds in APEX-E increase up to 60% as image slope decreases by 30% while thresholds for trench end patterns in UV210 increase up to 20% as the slope decreases by 25%.
25 GHz tunability of planar Bragg grating using liquid crystal cladding and electric field (2005)

Application of a liquid crystal over a UV written planar silica waveguide provides the first electrically tunable, first order reflective Bragg grating using liquid crystals. 25 GHz tunability is achieved with a 25 Volt applied field.
One-pot synthesis of well-defined polyether/polyester block copolymers and terpolymers by a highly efficient catalyst switch approach (2016)

A novel catalyst switch methodology, which takes advantage of one of the best catalysts for epoxide (<italic>t</italic>-BuP<sub>4</sub>) and cyclic ester (<italic>t</italic>-BuP<sub>2</sub>) polymerization, is presented.
A procedure for the computation of accurate PWL approximations of non-linear dynamical systems: Research Articles (2006)

In this paper we propose a variational method to find out piecewise-linear (PWL) approximations of non-linear dynamical systems in view of their circuit implementations. The method is based on some significant trajectories of the dynamical system and provides reasonably accurate PWL approximations with a relatively low number of parameters. The effectiveness of the method is validated by applying it to the approximation of limit cycles (both stable and unstable) in the Bautin system. Copyright © 2006 John Wiley & Sons, Ltd.