gebhart/patrepeval huggingface dataset:
Performance of an optical wireless communication system as a function of wavelength (2003)

Optical wireless communication (OWC) is gaining acceptance in an increasing number of sectors of science and industry, owing to its unique combination of features: extremely high bandwidth, rapid deployment time, license- and tariff-free bandwidth allocation, and low power consumption, weight, and size. However, the major drawback of OWC in terrestrial applications is the threat of downtime caused by adverse weather conditions, such as fog and haze. Several researchers have proposed and developed communication systems that use far-IR radiation to mitigate weather effects. In this study we analyze the performance of a short-distance terrestrial OWC system as a function of wavelength. A mathematical model for OWC link performance is derived. Using this model, we perform a simulation of our system under different weather conditions. From the results of our calculations, the improvement of link availability for 10 microm compared with 0.785-1.55 microm for a distance of 1-km propagation is 0.2% (99.6-99.8%). This modest improvement should be considered relative to the complexity and cost of quantum cascade laser transmitters and far-IR receivers.
Isolation, Identification, and Synthesis of Miriamides, New Hostmarkers from Eggs of Pieris brassicae (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTIsolation, Identification, and Synthesis of Miriamides, New Hostmarkers from Eggs of Pieris brassicaeAnton Blaakmeer, André Stork, Albertus van Veldhuizen, Teris A. van Beek, Aede de Groot, Joop J. A. van Loon, and Louis M. SchoonhovenCite this: J. Nat. Prod. 1994, 57, 1, 90–99Publication Date (Print):January 1, 1994Publication History Published online1 July 2004Published inissue 1 January 1994https://pubs.acs.org/doi/10.1021/np50103a013https://doi.org/10.1021/np50103a013research-articleACS PublicationsRequest reuse permissionsArticle Views240Altmetric-Citations27LEARN 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
WDM transceiver OEICs for local access networks (1994)

The authors report the fabrication of OEICs incorporating DFB lasers, 3 dB couplers, Mach-Zehnder interferometers, monitor photodiodes and high speed pin signal detectors, providing functionality for low cost, bidirectional telephony and unidirectional broadband communication links for access networks. This work represents the first time that these subcomponents have been monolithically integrated into an OEIC to support such a link. The process and design is compatible with solder bump packaging and enhanced coupling efficiency waveguide couplers.
Proposal of Automatic GPU Offloading Technology on Open IoT Environment (2018)

IoT technologies have been progressed. Now Open IoT concept has attracted attentions which achieves various IoT services by integrating horizontal separated devices and services. For Open IoT era, we have proposed the Tacit Computing technology to discover the devices with necessary data for users on demand and use them dynamically. However, existing Tacit Computing does not care about performance and operation cost. Therefore in this paper, we propose an automatic GPU offloading technology as an elementary technology of Tacit Computing which uses Genetic Algorithm to extract appropriate offload loop statements to improve performances. We evaluate a C/C++ image processing to verify effectiveness of GPU offloading and confirm more than 16 times performances within 1 hour calculation time.
A digital secure image communication scheme based on the chaotic Chebyshev map (2004)

Abstract In this paper, a simple image secure communication scheme based on the chaotic Chebyshev map and chaos synchronization is proposed. The scheme relies on the excellent correlation property of chaotic sequences, which is very desirable for secure image communication. The results obtained by computer simulation indicate that the transmitted source image can be correctly and reliably recovered using the proposed scheme, even through a noisy channel. Notably, the scheme possesses relatively high security and can be easily implemented. Moreover, the quality of the recovered image is satisfactory, quantified by such common criteria as the bit‐error rate performance. Copyright © 2004 John Wiley & Sons, Ltd.
Synthesis of new tripod ligands providing a phenolate donor. Structure of a stable monomeric copper(I) phenolate complex (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of new tripod ligands providing a phenolate donor. Structure of a stable monomeric copper(I) phenolate complexThomas N. Sorrell, A. S. Borovik, and Chien Chang ShenCite this: Inorg. Chem. 1986, 25, 5, 589–590Publication Date (Print):February 1, 1986Publication History Published online1 May 2002Published inissue 1 February 1986https://pubs.acs.org/doi/10.1021/ic00225a001https://doi.org/10.1021/ic00225a001research-articleACS PublicationsRequest reuse permissionsArticle Views230Altmetric-Citations13LEARN 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
Model-driven constraint programming (2008)

Constraint programming can definitely be seen as a model-driven paradigm. The users write programs for modeling problems. These programs are mapped to executable models to calculate the solutions. This paper focuses on efficient model management (definition and transformation). From this point of view, we propose to revisit the design of constraint-programming systems. A model-driven architecture is introduced to map solving-independent constraint models to solving-dependent decision models. Several important questions are examined, such as the need for a visual highlevel modeling language, and the quality of metamodeling techniques to implement the transformations. A main result is the s-COMMA platform that efficiently implements the chain from modeling to solving constraint problems
General Aviation Pilot Advisory and Training System (GAPATS) (1997)

The goal of this project is to achieve a validated General Aviation Pilot Advisor and Training System (GAPATS) engineering prototype, implemented according to commercial software standards and Federal Aviation Administration (FAA) issues of certification. Phase 2 builds on progress during Phase 1, which exceeded proposed objectives. The basic technology has been transferred from previous NASA research (1989 to 1994). We anticipate a commercially licensable prototype, validated by pilots in a flight simulator and in a light twin-engine research aircraft for FAA certification, by January 1998.
Polyether complexes of groups 13 and 14 (2016)

Notable aspects of the chemistry of complexes of polyether ligands including crown ethers, cryptands, glycols, glymes, and related polyether ligands with heavier group 13 and 14 elements are reviewed with a focus on results from 2005 to the present. The majority of reported polyether complexes contain lead(ii) and thallium(i) but recent breakthroughs in regard to the preparation of low oxidation state reagents of the lighter congeners have allowed for the generation of complexes containing indium(i), gallium(i), germanium(ii), and even silicon(ii). The important roles of ligand size, donor types, and counter anions in regard to the chemical properties of the polyether complexes is highlighted. A particular focus on the structural aspects of the numerous coordination complexes provides a rationale for some of the spectacular contributions that such compounds have made to Modern Main Group Chemistry.
Time-optimal path planning for sea-surface vehicles under the effects of strong currents and winds (2014)

Thesis: S.B., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2014.
Background effects on Faraday collectors in gas‐source mass spectrometry and implications for clumped isotope measurements (2013)

Background determination with gas flowing into the source of the mass spectrometer is necessary for accurate clumped isotope measurements of CO(2). Background corrections can be performed accurately if the slit width of the m/z 44 Faraday cup significantly exceeds that of the one for m/z 47, using a correlation between m/z 44 signal intensity and the corresponding minimum in m/z 47 background. We propose two new correction schemes that reduce the time-consuming measurement of gases of different bulk isotopic compositions. These findings may also be relevant for the measurement of other rare isotopologues by mass spectrometry.
Structure of Chromosomal Duplicons and their Role in Mediating Human Genomic Disorders (2000)

Chromosome-specific low-copy repeats, or duplicons, occur in multiple regions of the human genome. Homologous recombination between different duplicon copies leads to chromosomal rearrangements, such as deletions, duplications, inversions, and inverted duplications, depending on the orientation of the recombining duplicons. When such rearrangements cause dosage imbalance of a developmentally important gene(s), genetic diseases now termed genomic disorders result, at a frequency of 0.7-1/1000 births. Duplicons can have simple or very complex structures, with variation in copy number from 2 to >10 repeats, and each varying in size from a few kilobases in length to hundreds of kilobases. Analysis of the different duplicons involved in human genomic disorders identifies features that may predispose to recombination, including large size and high sequence identity between the recombining copies, putative recombination promoting features, and the presence of multiple genes/pseudogenes that may include genes expressed in germ cells. Most of the chromosome rearrangements involve duplicons near pericentromeric regions, which may relate to the propensity of such regions to accumulate duplicons. Detailed analyses of the structure, polymorphic variation, and mechanisms of recombination in genomic disorders, as well as the evolutionary origin of various duplicons will further our understanding of the structure, function, and fluidity of the human genome.
Digital control of multi level inverters using simplified space vector modulation (2009)

In this paper, a simplified space vector pulse width modulation (SVPWM) algorithm for a multi level inverter is proposed. This method is based on the usage of the adjacent vectors on a part time basis to satisfy the average output demand. In this method, the outer vectors are used for calculation while the inner vectors are ignored. This reduces the computation time so that the multi level inverter can be implemented using a Micro-controller itself. Simplified space vector pulse width modulation method is applied to three and five level inverters.The simulation results obtained from PSIM software are in accordance with the expectations. Multilevel inverter
Dynamic Interface Crack Propagating Along a Line Between Two Holes (2001)

The effects of the interface and two holes located near the crack path in the hybrid specimen on the dynamic crack propagation behavior have been investigated using dynamic photoelasticity with the aid of Cranz-Shardin type high speed camera system. The dynamic stress field around the dynamically propagating interface crack tip in the three point bending specimens under a dynamic load applied by a hammer dropped from 0.6 m high without initial velocity are recorded. The complex stress intensity factors for the dynamically propagating interface crack are extracted by using a overdeterministic least square method. Theoretical dynamic interface isochromatic fringe loops generated by using the numerically determined complex stress intensity factors are compared with the experimental results. Furthermore, the influence of the hole to the dynamic interface crack velocities has been investigated experimentally.
Compensation for nonlinear distortion of optical OFDM signals induced by electro-absorption modulated lasers with digital predistortion (2012)

In this paper, we demonstrated a digital predistortion (DPD) algorithm to linearize an electro-absorption modulated laser (EML) used to modulate a 40-Gbps orthogonal frequency division multiplexing (OFDM) signal onto an optical carrier. We characterized the EML as a nonlinear model based on memoryless polynomials. The nonlinear coefficients were estimated by a linear method. And the predistortion function of the EML was achieved with these estimated coefficients. The experimental results indicated that the DPD algorithm is an efficient method to compensate for the nonlinear distortion in EMLs.
VACUUM ULTRAVIOLET STUDIES OF RARE GASES AND RARE GAS MIXTURES EXCITED WITH PULSED HIGH ENERGY ELECTRON BEAMS. (1972)

Preliminary studies are reported on the properties of the rare gas systems argon, krypton, and xenon excited with high current density, energetic, pulsed electron beams.The excited media are examined through observation of the vacuum ultraviolet spontaneous emission originating from the molecular species formed in the excited medium.Experimental data are presented concerning energy transfer processes in Ar/Xe mixtures as well as time resolved spectra of pure Ar, Kr 3 and Xe in the wavelength region from 1100A to 2500A.For the case of 1500A band arising from transitions in the krypton dimer f we present evidence of gain narrowing of the spontaneous emission line at a pressure of five atmospheres.
Introduction: Pope and Berkeley (2005)

In An Essay on Criticism Alexander Pope says that if one wants to write truly correct and impressive verse it is 'not enough no Harshness gives Offence,/The Sound must seem an Eccho to the Sense' (ll. 364–5). He goes on to illustrate this direction with a series of lines whose sound echoes their sense, whose sonic, syntactical and metrical effects seem to imitate the actions being described in the semantic content of the lines. This book asks how it might be possible for the sound to echo the sense.1 It asks what Pope might have thought language was, and how language works, if the sound can be made to echo the sense of a passage of verse. In a note on these lines from An Essay on Criticism, the Twickenham Edition of Pope's poems gives full details of analogous statements made by Pope in his letters, and by earlier poets, including Marco Girolamo Vida, Dryden and the Earl of Roscommon. The last's 'Essay on Translated Verse' provides the most direct analogue for Pope's statement. Roscommon says that in good verse the 'The sound is still a Comment to the Sense.'2 Pope, one might say, is naturalising what Roscommon presents as an artificial activity: only people can offer a comment, whereas an echo is a naturally occurring phenomenon. But Pope says the sound should 'seem' an echo. He does not say that it is an echo, a natural imitation of the sense, but only that it should seem to be so.
Sequence detection for binary ISI channels using signal-space partitioning (1998)

Binary symbol detection based on a sequence of finite observation signals is formulated in the multidimensional signal space. A systematic space partitioning method is proposed to divide the entire space into two decision regions using a set of hyperplanes. The resulting detector structure consists of K parallel linear classifiers followed by a K-to-1 Boolean mapper, and is well suited to high-speed implementation. Compared to direct implementation of the fixed-delay tree search (FDTS) detection rule, the proposed signal-space formulation results in a considerable saving in digital hardware. Examples taken from binary-input intersymbol interference (ISI) channels are used to demonstrate the proposed technique. Block processing strategies suitable for high-speed applications are also discussed.
Error Sources in In-Plane Silicon Tuning-Fork MEMS Gyroscopes (2006)

This paper analyzes the error sources defining tactical-grade performance in silicon, in-plane tuning-fork gyroscopes such as the Honeywell-Draper units being delivered for military applications. These analyses have not yet appeared in the literature. These units incorporate crystalline silicon anodically bonded to a glass substrate. After general descriptions of the tuning-fork gyroscope, ordering modal frequencies, fundamental dynamics, force, and fluid coupling, which dictate the need for vacuum packaging, mechanical quadrature, and electrical coupling are analyzed. Alternative strategies for handling these engineering issues are discussed by introducing the Systron Donner/BEI quartz rate sensor, a successful commercial product, and the Analog Device (ADXRS), which is designed for automotive applications.
Low End-Tidal CO (1997)

End-tidal carbon dioxide (ET-CO2) is an indirect measure of cardiac output and a potential predictor of death after cardiac arrest. This prospective
Clinical evaluation of interactive volume visualization (1996)

The case study describes a system that allows the use of interactive volume rendering for routine clinical diagnosis. In this setup, a SGI RealityStation acts like a remote rendering system which is controlled by a user interface that was added to an existing clinical system. The paper describes some implementation aspects, including several system optimizations that were carried out in order to optimize rendering speed. Initial results are very promising; the authors present three examples of clinical findings that were made using this system. Because of the setup, clinicians are now much more aware of the possibilities that modern hardware offers for interactive volume visualization.
Rapid production of vector-free biotinylated probes using the polymerase chain reaction (1988)

Journal Article Rapid production of vector-free biotinylated probes using the polymerase chain reaction Get access Y -M. D. Lo, Y -M. D. Lo University of Oxford, Nuffield Department of Pathology, John Radcliffe HospitalOxford, OX3 9DU, UK Search for other works by this author on: Oxford Academic PubMed Google Scholar W.Z. Mehal, W.Z. Mehal University of Oxford, Nuffield Department of Pathology, John Radcliffe HospitalOxford, OX3 9DU, UK Search for other works by this author on: Oxford Academic PubMed Google Scholar K.A. Fleming K.A. Fleming University of Oxford, Nuffield Department of Pathology, John Radcliffe HospitalOxford, OX3 9DU, UK Search for other works by this author on: Oxford Academic PubMed Google Scholar Nucleic Acids Research, Volume 16, Issue 17, 12 September 1988, Page 8719, https://doi.org/10.1093/nar/16.17.8719 Published: 12 September 1988 Article history Received: 27 July 1988 Published: 12 September 1988
Provenance-Based Information Trustworthiness Evaluation in Multi-Hop Networks (2010)

In this paper, we present a trust model to evaluate the trustworthiness of information as well as the information publishing nodes based on the information provenance. We consider two factors in evaluating the provenance-based information trust: Path Similarity and Information Similarity. In multihop networks, information can flow through multiple hops from multiple paths. We model the similarity between different paths which deliver information about the same event and the similarity between two information items about the same event which are delivered through different paths. Both path and information similarity factors are considered in determining the trust of the information. This information trust is indeed used as a feedback factor to adaptively adjust trust of the nodes in the network. Detailed analysis of the proposed approach is presented along with simulation results for validation.
Stochastic radio interferometric positioning in the 2.4 GHz range (2011)

This paper presents a novel Radio Interferometric Positioning System (RIPS), which we call Stochastic RIPS (SRIPS). Although RIPS provides centimeter accuracy, it is still not widely adopted due to (1) the limited set of suitable radio platforms and (2) the relatively long measurement and calibration times. SRIPS overcomes these practical limitations by (1) omitting the calibration phase of the existing RIPS and by (2) applying a novel positioning algorithm. SRIPS exploits the phenomenon of the small but stable difference between two transmitted frequencies that often exists when two radios are tuned to the same frequency. We obtain an experimental measure for this stability. This approach enables the implementation of RIPS on commonly available radio platforms, such as the CC2430, because fine-tuning in small steps relative to the beat frequencies for calibration is not required. In addition, we show that SRIPS calculates the position that provides the best fit to the set of measurements, given the underlying statistical and propagation models. Therefore, SRIPS converges more accurately to the true locations in a variety of situations of practical interest. Experiments in a 20x20m2 set-up verify this and show that our SRIPS CC2430 implementation reduces the number of required measurements by a factor of three, and it reduces the measurement time to less than 0.1 seconds, while providing accuracy similar to that of the existing RIPS implementation on the CC1000 platform, which requires seconds.
Modeling and dynamic analysis of paralleled DC/DC converters with master-slave current sharing control (2002)

A simple, application-oriented, transfer function model of paralleled converters employing master-slave current-sharing (MSC) control is developed. Dynamically, the master converter retains its original design characteristics; all the slave converters are forced to depart significantly from their original design characteristics into current-controlled current sources. Five distinct loop gains to assess system stability and performance are identified and their physical significance is described. A design methodology for the current share compensator is presented. The effect of this current sharing scheme on "system output impedance" is analyzed.