gebhart/patrepeval huggingface dataset:
<title>Evaluation of deep trap compensation ratio and recombination parameters by transient grating techniques</title> (2008)

We demonstrate a novel application of time-resolved transient grating technique for determination of deep trap occupation ratio in semi-insulating crystals. Light diffraction kinetics on a transient reflection grating with very small period (150 nm) provided conditions for studies of absorption nonlinearity and its discrimination from the coexisting free carrier and electro-optic ones. By numerical modeling of absorption grating kinetics in subnanosecond time domain, we determined the contributions of the recharged deep traps and two-photon absorption to diffraction kinetics and evaluated in this way the deep trap compensation ratio in differently grown GaAs crystals. Moreover, the decay time of the absorption grating provided the rate of carrier capture to these dominant deep traps, which have been recharged under illumination. Using this feature, we were able to monitor the thermal annealing process in vanadium-doped CdTe crystals: it has not effected the charge state of vanadium related deep traps, but reduced the concentration of the active residual carrier capture centers in the crystal.
Exploiting Hierarchical Parallelism Using UPC (2011)

High-Performance Computing (HPC) systems are increasingly moving towards an architecture that is deeply hierarchical. However, the execution model with single-level parallelism embodied in legacy parallel programming models falls short in exploiting the multi-level parallelism opportunities in both hardware architectures and applications. This makes the use of richer execution models imperative in order to fully exploit hierarchical parallelism. Partitioned Global Address Space (PGAS) languages such as Unified Parallel C (UPC) are growing in popularity because of their ability to provide a globally shared address space with locality awareness. While UPC provides a welcome improvement over message passing libraries, users still program with a single level of parallelism in the context of SPMD. In this paper, we explore two explicit hierarchical programming approaches based on UPC to improve programmability and performance on hierarchical architectures. The first approach orchestrates computations on multiple sets of thread groups, the second approach extends UPC with nested, shared memory multi-threading. This paper presents a detailed description of proposed approaches and demonstrates their effectiveness in the context of the NAS Parallel Benchmarks and the Unbalanced Tree Search (UTS). Experimental results indicate that the hierarchical model not only provides greater expressive power but also enhances performance, all three benchmarks exceed the performance of the standard UPC implementations after being incrementally enhanced with hierarchical parallelism.
Closed-loop terrain relative navigation for AUVs with non-inertial grade navigation sensors (2010)

Terrain Relative Navigation (TRN) has the potential to enable drift-free, low-cost navigation for a wide range of underwater vehicles. Current underwater TRN systems have demonstrated meter-level navigation accuracy by utilizing high-accuracy inertial navigation systems in combination with both low and high quality sonar sensors and bathymetry maps. No studies, however, have considered the application of underwater TRN to vehicles with non-inertial-grade navigation systems, an extension which would greatly increase its applicability. The use of low-grade motion sensors in TRN is problematic due to the presence of large errors which can cause highly inaccurate alignment of successive sonar pings. To address this, a TRN filter is developed in which information present in the terrain correlations is used to help identify and mitigate large motion sensor errors. The resulting filter consists of a tight coupling between TRN and the onboard navigation, yielding a significantly improved navigation solution. The development of this TRN system is detailed for an AUV with an Attitude, Heading and Reference System (AHRS)-based dead reckoning navigation, which has an observed accuracy of 5 - 25% distance traveled. Field trials in Monterey Bay, CA demonstrate the ability of the TRN filter to acheive 5 - 10m navigational precision. Field trials are also presented demonstrating successful real-time, closed-loop TRN on the AUV. For these trials, the combined TRN/AHRS system enabled the vehicle to fly to a known beacon location with ability comparable to an acoustic homing system. The presented results demonstrate that TRN technology can successfully be applied to non-inertial-grade vehicle platforms, greatly improving the navigation capabilities of such systems.
Sample Adaptive Offset in the HEVC Standard (2012)

This paper provides a technical overview of a newly added in-loop filtering technique, sample adaptive offset (SAO), in High Efficiency Video Coding (HEVC). The key idea of SAO is to reduce sample distortion by first classifying reconstructed samples into different categories, obtaining an offset for each category, and then adding the offset to each sample of the category. The offset of each category is properly calculated at the encoder and explicitly signaled to the decoder for reducing sample distortion effectively, while the classification of each sample is performed at both the encoder and the decoder for saving side information significantly. To achieve low latency of only one coding tree unit (CTU), a CTU-based syntax design is specified to adapt SAO parameters for each CTU. A CTU-based optimization algorithm can be used to derive SAO parameters of each CTU, and the SAO parameters of the CTU are inter leaved into the slice data. It is reported that SAO achieves on average 3.5% BD-rate reduction and up to 23.5% BD-rate reduction with less than 1% encoding time increase and about 2.5% decoding time increase under common test conditions of HEVC reference software version 8.0.
Bethe-Salpeter eigenvalues and amplitudes for the half-filled two-dimensional Hubbard model (1993)

Monte Carlo simulations are used to determine the eigenvalues and eigenfunctions of the particle-hole and particle-particle Bethe-Salpeter equations for 8\ifmmode\times\else\texttimes\fi{}8 half-filled Hubbard lattice with U/t=4 and U/t=8. In the particle-hole channel, the dominant eigenvalue corresponds to the Q=(\ensuremath{\pi},\ensuremath{\pi}) antiferromagnetic correlations. In the particle-particle channel the amplitude of the leading low-temperature eigenvalue is an even-frequency ${\mathit{d}}_{\mathit{x}}^{2}$-${\mathit{y}}^{2}$ singlet. Odd-frequency p-wave-singlet and s-wave-triplet amplitudes are also found.
Pharmaceutical applications of mucoadhesion for the non-oral routes (2004)

The adhesion of pharmaceutical formulations to the mucosal tissue offers the possibility of creating an intimate and prolonged contact at the site of administration. This prolonged residence time can result in enhanced absorption and, in combination with a controlled release of the drug, also improved patient compliance by reducing the frequency of administration. During the almost 30 years over which mucoadhesion has been studied, a considerable amount of knowledge has been gained, and much has been learned about the different mechanisms occurring at the formulation-mucus interface and the properties that affect these mechanisms. The in-vivo performance of a dosage form not only depends on the mechanisms occurring at the interface, but also on the properties of the total mucoadhesive complex: the dosage form, the mucosa and the interface between them. A wide variety of methods are used for studying mucoadhesion; some rather similar to the in-vivo situation and some mimicking the interface alone. In this review, the mucus surface, the methods used for the study of mucoadhesion, the different mechanisms involved in mucoadhesion and theories underpinning them have been described. The complexity of mucoadhesion when trying to systemize the subject will also be discussed. The last part of the review describes the buccal, nasal, ocular, vaginal and rectal routes and provides examples of what can be achieved in-vivo when using mucoadhesive formulations.
Modeling the Propeller Slipstream Effect on Lift and Pitching Moment (2017)

A semi-analytical prediction method is presented to predict the effect of the propeller slipstream on the lift and pitching moment of a propeller-powered aircraft.The method assesses three effects caused by the propeller slipstream: an increase in lift over the wing due to the slipstream, a change in the tail-off pitching moment, and a change in the horizontal tail contribution to the pitching moment due to increased downwash and (possibly) dynamic pressure.This prediction method is validated using wind tunnel data for the Fokker 50 and a special version of the Saab 340 with T-tail.The prediction method shows good correlation with the experimental results for various combinations of flap deflection, angle-of-attack, and thrust coefficient.Further analysis of the results demonstrates that the propeller slipstream effect reduces the tail effectiveness due to an increase in downwash gradient at the horizontal tail.Furthermore, it is shown that the effectiveness of the tail is influenced by the vertical position of the tail with respect to the slipstream due to slipstream inflow and a (possible) change dynamic pressure ratio.
Evidence for dissociative photosubstitution reactions of (acetonitrile)(bipyridine)(terpyridine)ruthenium(2+). Crystal and molecular structure of [Ru(trpy)(bpy)(py)](PF6)2.cntdot.(CH3)2CO (1991)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEvidence for dissociative photosubstitution reactions of (acetonitrile)(bipyridine)(terpyridine)ruthenium(2+). Crystal and molecular structure of [Ru(trpy)(bpy)(py)](PF6)2.cntdot.(CH3)2COClark R. Hecker, Phillip E. Fanwick, and David R. McMillinCite this: Inorg. Chem. 1991, 30, 4, 659–666Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published inissue 1 February 1991https://pubs.acs.org/doi/10.1021/ic00004a013https://doi.org/10.1021/ic00004a013research-articleACS PublicationsRequest reuse permissionsArticle Views1474Altmetric-Citations134LEARN 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
High density strain sensing using optical frequency domain reflectometry (2000)

A system for producing and demultiplexing large numbers of fiber Bragg grating sensors is described. Three thousand gratings were multiplexed in four optical fibers and demonstrated on a large test article. Preliminary results of a strain sensing system in unaltered fiber using OFDR measurements of the Rayleigh scatter is also described.
The Application of Dielectric Tuning to Panoramic Receiver Design (1955)

This paper describes a method of utilizing the voltage tuning characteristics of ferroelectric capacitors in a wide range, superheterodyne, dielectric-tuned, panoramic receiver. Continuous tuning over a 2:1 frequency band is obtained in frequency ranges up to 110 mc. Some of the problems encountered in this application are described, and a method of optimizing the parameters of specific materials is discussed. No detailed technical discussion is presented. The application of these capacitors to various types of circuitry is briefly indicated.
Latent open testing of electronic packaging (2002)

Alternating and direct electric currents are applied through the metal interconnections in electronic packaging to detect potential electrical opens, such as line narrowings, notches, nicks, cracks, weak connections, and interface contaminations. Due to the nonlinear relationship between the voltage across and current through the metal conductor, distorted signals are generated by the defect region as well as the good conductor. The signal generated from a latent open defect can be detected by comparing the defect signal phase with the reference phase produced by the good conductor. Application of this technique to electronic packaging development and manufacturing can improve product reliability and reduce cost by early detection of latent open defects.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Genistein induces radioprotection by hematopoietic stem cell quiescence (2008)

Pretreatment with genistein provides in vivo protection from acute myelotoxicity through extended quiescence followed by reduced senescence of marrow repopulating LSK(+).
The Major Structural Protein of African Swine Fever Virus, p73, Is Packaged into Large Structures, Indicative of Viral Capsid or Matrix Precursors, on the Endoplasmic Reticulum (1998)

African swine fever virus (ASFV) is a large enveloped DNA virus that shares the striking icosahedral symmetry of iridoviruses. To understand the mechanism of assembly of ASFV, we have been studying the biosynthesis and subcellular distribution of p73, the major structural protein of ASFV. Sucrose density sedimentation of lysates prepared from infected cells showed that newly synthesized p73 was incorporated into a complex with a size of 150 to 250 kDa. p73 synthesized by in vitro translation migrated at 70 kDa, suggesting that cellular and/or viral proteins are required for the formation of the 150- to 250-kDa complex. During a 2-h chase, approximately 50% of the newly synthesized pool of p73 bound to the endoplasmic reticulum (ER). During this period, the membrane-bound pool of p73, but not the cytosolic pool, formed large complexes of approximately 50,000 kDa. The complexes were formed via assembly intermediates, and the entire membrane-associated pool of p73 was incorporated into the 50,000-kDa complex within 2 h. The 50,000-kDa complexes containing p73 were also detected in virions secreted from cells. Immunoprecipitation of sucrose gradients with sera taken from hyperimmune pigs suggested that p73 was the major component of the 50,000-kDa complex. It is possible, therefore, that the complex contains between 600 and 700 copies of p73. The kinetics of complex formation and envelopment of p73 were similar, and complex formation and envelopment were both reversibly inhibited by cycloheximide, suggesting a functional link between complex assembly and ASFV envelopment. A protease protection assay detected 50,000-kDa complexes on the inside and outside of the membranes forming the viral envelope. The identification of a complex containing p73 beneath the envelope of ASFV suggests that p73 may be a component of the inner core shell or matrix of ASFV. The outer pool may represent p73 within the outer capsid layer of the virus. In summary, the data suggest that the assembly of the inner core matrix and outer capsid of ASFV takes place on the ER membrane during envelopment and that these structures are not preassembled in the cytosol.
Effect of secondary electron emission on surface wave propagation (2005)

This study aims to contribute to the analysis of the mechanisms of surface-wave-energy absorption. The discussion is based on a consideration of emissive processes from dielectric surface, which is in contact with collisional nonisothermal plasma, and on an analysis of secondary electron motion in the wave-fields. Through electron acceleration due to the action of ponderomotive force, the secondary emission affects the wave behavior. The conditions of the existence of secondary-emission-induced absorption of the wave are analyzed and its role in maintenance of wave-produced gas discharges, as one of its applications, is discussed as well.
A Hybrid Plasmonic−Photonic Nanodevice for Label-Free Detection of a Few Molecules (2008)

Noble metal nanowaveguides supporting plasmon polariton modes are able to localize the optical fields at nanometer level for high sensitivity biochemical sensing devices. Here we report on the design and fabrication of a novel photonic-plasmonic device which demonstrates label-free detection capabilities on single inorganic nanoparticles and on monolayers of organic compounds. In any case, we determine the Raman scattering signal enhancement and the device detection limits that reach a number of molecules between 10 and 250. The device can be straightforwardly integrated in a scanning probe apparatus with the possibility to match topographic and label-free spectroscopic information in a wide range of geometries.
Rate coefficients for reactions of several hydrofluorocarbons with hydroxyl and oxygen atom(1D) and their atmospheric lifetimes (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRate coefficients for reactions of several hydrofluorocarbons with hydroxyl and oxygen atom(1D) and their atmospheric lifetimesA. M. Schmoltner, R. K. Talukdar, R. F. Warren, A. Mellouki, L. Goldfarb, T. Gierczak, S. A. McKeen, and A. R. RavishankaraCite this: J. Phys. Chem. 1993, 97, 35, 8976–8982Publication Date (Print):September 1, 1993Publication History Published online1 May 2002Published inissue 1 September 1993https://pubs.acs.org/doi/10.1021/j100137a023https://doi.org/10.1021/j100137a023research-articleACS PublicationsRequest reuse permissionsArticle Views207Altmetric-Citations63LEARN 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
Numerical tools for the characterization of microelectromechanical systems by digital holographic microscopy (2015)

Digital holography (DH) in microscopy became an important interferometric tool in optical metrology when camera sensors reached a higher pixel number with smaller size and high-speed computers became able to process the acquired images. This allowed the investigation of engineered surfaces on microscale, such as microelectromechanical systems (MEMS). In DH, numerical tools perform the reconstruction of the wave field. This offers the possibility of retrieving not only the intensity of the acquired wavefield, but also the phase distribution. This review describes the principles of DH and shows the most important numerical tools discovered and applied to date in the field of MEMS. Both the static and the dynamic regimes can be analyzed by means of DH. Whereas the first one is mostly related to the characterization after the fabrication process, the second one is a useful tool to characterize the actuation of the MEMS.
Advanced application of pattern-aware OPC (2017)

For advanced technology nodes, it’s critical to address yield issues caused by process specific layout patterns with limited process window. RETs such as Model-Based Sub-Resolution Assist Feature (MB-SRAF) are introduced to guarantee high lithographic margin, but these techniques come with long runtime, especially when applied full-chip. There’s also lack of integrated solution to easily identify, define comprehensive patterns and apply different controls and/or constraints over these patterns through different stages of OPC/RET process. In this paper, we introduce a flow that applies advanced RET such as MBSRAF or specific local corrections to layouts with critical and yield limiting patterns. We also introduce in-process pattern match based on Cadence topological Squish pattern. Overall, this new flow of Pattern-Aware OPC (PA-OPC) achieves better margin for hotspots, without sacrificing turnaround time and is able to handle more complex patterns and environment than traditional methods. We demonstrate the benefit of the new flow with fine-grained process window control over different patterns.
THE SYNAPTIC VESICLE CYCLE (1998)

The ins and outs of the synaptic vesicle cycle are being examined in increasing detail with diverse investigative tools in a variety of cell types, particularly those with large granules. The cycle begins with the opening of a fusion pore that connects the vesicle lumen to the extracellular fluid. Sensitive electrophysiological techniques reveal the often-stuttering behavior of single pores in non-neuronal cells, through which small molecules trickle until the fusion pore expands and the remaining contents erupt from the vesicle. The granule membranes are then retrieved by multiple processes that appear to act in parallel and that are distinguished from each other kinetically and ultrastructurally. Following endocytosis, synaptic vesicles are then shuttled back into the vesicle pool, where they briefly mix with other vesicles, become immobilized, and remain gelled with their neighbors, even while moving en masse again to the presynaptic membrane as a prelude for another round of exocytosis.
The elusive phosphorescence of pyrromethene–BF2 dyes revealed in new multicomponent species containing Ru(ii)–terpyridine subunits (2005)

The triplet emitting state of an indacene at 774 nm (of 50 ms life-time) was observed for the first time in new ruthenium(II) complexes based on bipartite ligands carrying one or two indacene subunits linked via phenylethynyl connectors to terpyridine fragments.
Induktion von Apoptose und Proliferationshemmung durch epigenetische Modulatoren in humanen Pankreaskarzinomzellen in vitro und in vivo (2005)

Hintergrund: Tumorsuppressorgene werden häufig durch DNA-Methylierung und Histonazetylierung auf epigenetischer Ebene inaktiviert. Wir haben den Einfluss des DNA-Methyltransferase-Inhibitors Zebularin und des Histondeazetylase-Inhibitors SAHA auf Proliferation, Apoptose, Promotormethylierung und Differenzierungsstatus humaner Pankreaskarzinomzellen in vitro und in vivo untersucht.