gebhart/patrepeval huggingface dataset:
Mixture reduction algorithms for target tracking in clutter (1990)

The Bayesian solution of the problem of tracking a target in random clutter gives rise to Gaussian mixture distributions, which are composed of an ever increasing number of components. To implement such a tracking filter, the growth of components must be controlled by approximating the mixture distribution. A popular and economical scheme is the Probabilistic Data Association Filter (PDAF), which reduces the mixture to a single Gaussian component at each time step. However this approximation may destroy valuable information, especially if several significant, well spaced components are present. In this paper, two new algorithms for reducing Gaussian mixture distributions are presented. These techniques preserve the mean and covariance of the mixture, and the fmal approximation is itself a Gaussian mixture. The reduction is achieved by successively merging pairs of components or groups of components until their number is reduced to some specified limit. Further reduction will then proceed while the approximation to the main features of the original distribution is still good. The performance of the most economical of these algorithms has been compared with that of the PDAF for the problem of tracking a single target which moves in a plane according to a second order model. A linear sensor which measures target position is corrupted by uniformly distributed clutter. Given a detection probability of unity and perfect knowledge of initial target position and velocity, this problem depends on only twÂ non-dimensional parameters. Monte Carlo simulation has been employed to identify the region of this parameter space where significant performance improvement is obtained over the PDAF.© (1990) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Unsteady aerodynamic simulations of an oscillating airfoil with miniflaps (2002)

Reynolds-Averaged Navier-Stokes computations of an oscillating airfoil equipped with a Gurney flap are conducted. The airfoil is oscillated at a reduced frequency of 0.13 between angles of attack of 0.0°14.4° at a chord Reynolds number of 169xl0. This range of angle of attack provides for light dynamic stall flow conditions. The results of the computations are compared with surface measurements from an experiment and show good qualitative agreement. The computational results show that during pitch-up of the airfoil there is little effect on the unsteady airfoil flow due to the Gurney flap; this is unlike the Gurney flap in a steady flow. However, during pitch-down the Gurney flap appears to delay the shedding of the vortices, increase the pressure difference at the airfoil's trailing edge and increase the overall lift coefficient. However there is a drag penalty associated with this increase in lift.
The Process and the Product: A Bibliography of Scholarship About Legal Scholarship (1998)

This bibliography of scholarship about legal scholarship was originally prepared for the 1997 Conference of the Association of Legal Writing Directors. The Conference explored the rapidly developing area of scholarship by legal writing professors and the ways in which this important scholarship can be encouraged. Characteristically, when writing teachers turn their attention to a particular kind of writing project, they begin by examining both the genre and the creative activity the genre employs—that is, the process and the product. This bibliography is one result of that study. The authors hope that it will prove helpful to anyone interested in legal scholarship, especially to law faculty in the early stages of their scholarly careers.
AVIoT: web-based interactive authoring and visualization of indoor internet of things (2015)

Internet of things recently emerges as a common platform and service for consumer electronics. This paper presents an interactive framework of visualizing and authoring IoT in indoor environments such as home or small office. Building blocks of the framework are virtual sensors and actuators that abstract physical things and their virtual behaviors on top of their physical networks. Their behaviors are abstracted and programmed through visual authoring tools on the web, which allows a casual consumer to easily monitor and define their behaviors even without knowing the underlying physical connections. The user study performed to assess the usability of the visual authoring showed that the visual authoring is easy to use, understandable, and also preferred to typical text-based script programming.
Power-over-Fiber LPIT for Voltage and Current Measurements in the Medium Voltage Distribution Networks (2021)

In this work, we present the design, laboratory tests, and the field trial results of a power-over-fiber (PoF) low power instrument transformer (LPIT) for voltage and current measurements in the medium voltage distribution networks. The new proposed design of this power-over-fiber LPIT aims to overcome the drawbacks presented by the previous technologies, such as the continuous operation (measuring and data transmission) for a wide current range conducted in the medium voltage transmission lines, damage due to lightning strikes, accuracy dependency on vibration, position and temperatures. The LPIT attends the accuracy criteria of IEC 61869-10 and IEC 61869-11 in terms of current and voltage accuracy and it attends the practical criteria adopted by Utilities companies including voltage measurements without removing the coating of the covered conductors. The PoF based LPIT was developed to be applied at 11.9 kV, 13.8 kV, and 23.0 kV phase-to-phase nominal voltages, and in two current ranges 1.25-30 A and 37.5-900 A. The digital data transmission of current, voltage, and temperature from the sensing unit to the processing unit uses a special synchronism technique and it is performed by two 62.5 µm multimode fibers in 850 nm. The optical powering in 976 nm is also performed by one 62.5 µm multimode fiber from the processing unit to the sensor unit. We presented all details of the sensor design and its laboratory characterization in terms of accuracy and temperature correction. We also presented the results of field tests of the sensor made in two different conditions: in a standard distribution network and an experimental hybrid fiber/power distribution network. We believe that these studies aim to incorporate optical fiber and devices, digital technologies, communications systems in electrical systems driving their evolution.
Towards a Classification Framework for Mobile Location Based Services (2011)

The emerging world of mobile commerce is characterized by a multiplicity of exciting new technologies, applications, and services. Among the most promising ones will be the ability to identify the exact geographical location of a mobile user at any time. This ability opens the door to a new world of innovative services, which are commonly referred to as Mobile Location Services (MLS). This chapter aims at exploring the fascinating world of MLS, identifying the most pertinent issues that will determine its future potential, and laying down the foundation of a new field of research and practice. The contribution of our analysis is encapsulated into a novel classification of mobile location services that can serve both as an analytical toolkit and an actionable framework that systemizes our understanding of MLS applications, underlying technologies, business models, and pricing schemes.
Syntheses in the Indene Series<sup>1</sup> (1953)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSyntheses in the Indene Series1John KooCite this: J. Am. Chem. Soc. 1953, 75, 8, 2000–2001Publication Date (Print):April 1, 1953Publication History Published online1 May 2002Published inissue 1 April 1953https://pubs.acs.org/doi/10.1021/ja01104a515https://doi.org/10.1021/ja01104a515research-articleACS PublicationsRequest reuse permissionsArticle Views156Altmetric-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-Alertsclose Get e-Alerts
A Comparison of Oleic Acid Metabolism in the Soybean (<i>Glycine max</i> [L.] Merr.) Genotypes Williams and A5, a Mutant with Decreased Linoleic Acid in the Seed (1986)

The metabolism of oleoyl coenzyme A (CoA) was examined in developing seed from two soybean (Glycine max [L.] Merr.) genotypes: Williams, a standard cultivar and A5, a mutant containing nearly twice the oleic acid (18:1) content of Williams. The in vitro rates of esterification of oleoyl-CoA to lysophosphatides by acyl-CoA: lysophosphatidylcholine acyltransferase was similar in both genotypes and lysophosphatidyl-ethanolamine was a poor substrate. Crude extracts desaturated exogenous [1-(14)C]dioleoyl phosphatidylcholine at 14% of the rate achieved with [1-(14)C]oleoyl-CoA, and 50 micromolar lysophosphatidylcholine. The desaturase enzyme also required NADH for full activity. Extracts from Williams contained 1.5-fold more oleoyl phosphatidylcholine desaturase activity, on a fresh weight basis, than did A5 and appeared to have a similar affinity for oleoyl-CoA. There was 1.2- to 1.9-fold more linoleic acid (18:2) in phosphatidylcholine from Williams than from A5, measured at two stages of development, but both genotypes had a similar distribution of fatty acids in the one and two positions. Phosphatidylethanolamine in A5 contained relatively more linoleic acid (18:2) in the one position than did Williams. The increased oleic acid (18:1) content in A5 appeared to be a result of decreased rates of 18:1 desaturation of oleoyl-phosphatidylcholine in this genotype.
Extending BPEL for Run Time Adaptability (2006)

The existing Web service flow (WS-flow) technologies enable both static and dynamic binding of participating Web services (WSs) on the process model level. Adaptability on per-instance basis is not sufficiently supported and therefore must be addressed to improve process flexibility upon changes in the environment. Ad-hoc process instance changes can be enabled by swapping participating WS instances, by modifying port types of the partners to be invoked, and by changing process logic. In this work, we address the problem of dynamic binding of WSs to WS-flow instances at run time, i.e. the ability to exchange a WS instance participating in a WS-flow instance with an alternative one. The problem is additionally complicated by the fact that the execution of a process depends on its deployment. We describe the "find and bind" mechanism, and we show its representation as a BPEL extension. We discuss the benefits that could be gained and the disadvantages it brings in. The mechanism extends and improves the existing process technologies. It facilitates a precisely controlled policy-based selection of WSs at run time and also provides for process instance repair, while maintaining simplicity. We also discuss a prototypical implementation of the presented functionality.
Target cell susceptibility to lysis by human natural killer cells is augmented by α(1,3)-galactosyltransferase and reduced by α(1,2)-fucosyltransferase. (1999)

Page 10717, abstract, line 3:“Gal α(1,3)GlcNAc” should be “Gal α(1,3)Gal β(1,4)GlcNAc.”
Identification by Automated Screening of a Small Molecule that Selectively Eliminates Neural Stem Cells Derived from hESCs but Not Dopamine Neurons (2009)

In conclusion, we have developed a screening strategy that allows us to rapidly identify clinically approved drugs for use in a Chemistry, Manufacture and Control protocol that can be safely used to deplete unwanted contaminating precursor cells from a differentiated cell product. Our results also suggest that such a strategy is rich in the potential of identifying lineage specific reagents and provides additional evidence for the utility of stem cells in screening and discovery paradigms.
Advances in photonic reservoir computing (2017)

Abstract We review a novel paradigm that has emerged in analogue neuromorphic optical computing. The goal is to implement a reservoir computer in optics, where information is encoded in the intensity and phase of the optical field. Reservoir computing is a bio‐inspired approach especially suited for processing time‐dependent information. The reservoir’s complex and high‐dimensional transient response to the input signal is capable of universal computation. The reservoir does not need to be trained, which makes it very well suited for optics. As such, much of the promise of photonic reservoirs lies in their minimal hardware requirements, a tremendous advantage over other hardware‐intensive neural network models. We review the two main approaches to optical reservoir computing: networks implemented with multiple discrete optical nodes and the continuous system of a single nonlinear device coupled to delayed feedback.
Seeing, Second Edition: The Computational Approach to Biological Vision (2010)

Seeing has puzzled scientists and philosophers for centuries and continues do so. This new edition of a classic text offers an accessible but rigorous introduction the computational approach understanding biological visual systems. The authors of Seeing, taking as their premise David Marr's statement that to understand vision by studying only neurons is like trying understand bird flight by studying only feathers, make use of Marr's three different levels of analysis in the study of vision: the computational level, the algorithmic level, and the hardware implementation level. Each chapter applies this approach a different topic in vision by examining the problems the visual system encounters in interpreting retinal images and the constraints available solve these problems; the algorithms that can realize the solution; and the implementation of these algorithms in neurons. Seeing has been thoroughly updated for this edition and expanded more than three times its original length. It is designed lead the reader through the problems of vision, from the common (but mistaken) idea that seeing consists just of making pictures in the brain the minutiae of how neurons collectively encode the visual features that underpin seeing. Although it assumes no prior knowledge of the field, some chapters present advanced material, making it the only textbook suitable for both undergraduate and graduate students that takes a consistently computational perspective, offering a firm conceptual basis for tackling the vast literature on vision. It covers a wide range of topics, including aftereffects, the retina, receptive fields, object recognition, brain maps, Bayesian perception, motion, color, and stereopsis. MatLab code is available on the book's Web site, which includes a simple demonstration of image convolution.
Evidence for phase memory in two-photon down conversion through entanglement with the vacuum (1990)

An experiment has been carried out in which two pairs of light beams produced by down conversion in two nonlinear crystals driven by a common pump were mixed by two beam splitters, and the coincidence rate for simultaneous detections of mixed signal and idler photons was measured. It is found that the down-converted light carries information about the phase of the pump field through the entanglement of the down-converted photons with the vacuum.
Structure Determination of the N-Terminal Thioredoxin-like Domain of Protein Disulfide Isomerase Using Multidimensional Heteronuclear <sup>13</sup>C/<sup>15</sup>N NMR Spectroscopy (1996)

As a first step in dissecting the structure of human protein disulfide isomerase (PDI), the structure of a fragment corresponding to the first 120 residues of its sequence has been determined using heteronuclear multidimensional NMR techniques. As expected from its primary structure homology, the fragment has the thioredoxin fold. Similarities and differences in their structures help to explain why thioredoxins are reductants, whereas PDI is an oxidant of protein thiol groups. The results confirm that PDI has a modular, multidomain structure, which will facilitate its structural and functional characterization.
Fuchs Endothelial Corneal Dystrophy in Patients With Myotonic Dystrophy (2013)

To our knowledge, FECD has not been previously reported in association with DM. Because both diseases are somewhat prevalent in the United States, it is possible that their coexistence is merely a coincidence in these patients. However, recent studies into the pathogenesis of each disease have shown more parallels between FECD and DM, suggesting the possibility of a noncoincidental association. Potential mutual pathogenic mechanisms may involve altered protein expression causing the deregulation of ion homeostasis, an unstable intronic trinucleotide repeat expansion, or activation of the unfolded protein response and oxidative stress pathways.
Active silicon microring resonators using metal-oxide-semiconductor capacitors (2005)

We propose an injection-type active silicon microring resonator using metal-oxide-semiconductor capacitors. Our simulations reveal a modulation bandwidth exceeding 2 GHz, a resonance shift of 0.5 nm, and an extinction ratio exceeding 20 dB.
Purification and characterization of a marine bacterial collagenase (1978)

A true collagenase was isolated from the culture fluid of a marine bacterium which has been designated Vibrio B-30 (ATCC 21250). Collagenase production was obtained only in media containing collagen or certain degradation products of collagen. Partial purification on DEAE-cellulose and Sephadex G-200 columns produced active enzyme which was free of nonspecific proteases but which contained two collagenases. The two collagenases have the same apparent molecular size, and evidence is presented to support the theory that one collagenase is derived from the other. Vibrio B-30 collagenase appears to be a tetramer with a molecular weight of about 105 000 composed of two different subunits (mol wt 24 000 and 28 000). Some of the properties of the Vibrio collagenase are compared with those of Clostridium histolyticum collagenase. Molecular weights, subunit structures, specificity and mode of collagen hydrolysis, insensitivity to diisopropyl fluorophosphate and calf serum, and sensitivity to certain metal ion complexing agents and isopropyl alcohol are similar for the collagenases from both organisms. However, Vibrio B-30 collagenase and Clostridium collagenase differ immunologically and electrophoretically.
Compilation of diamond-like carbon properties for barriers and hard coatings (1994)

Diamond-like carbon (DLC) is an amorphous form of carbon which resembles diamond in its hardness, lubricity, and interest for hardness, lubricity, and resistance to chemical attack. Such properties make DLC of use in barrier and hard coating technology. This report examines a variety of properties of DLC coatings which are relevant to its use as a protective coating. This includes examining substrates on which DLC coatings can be deposited; the resistance of DLC coatings to various chemical agents; adhesion of DLC coatings; and characterization of DLC coatings by electron microscopy, FTIR, sputter depth profiling, stress measurements, and nanoindentation.
Epidermal Growth Factor Receptor Internalization Rate Is Regulated by Negative Charges near the SH2 Binding Site Tyr992 (1999)

This study examines the effects of mutations at and in the vicinity of tyrosine 992 of the epidermal growth factor receptor (EGFr) on epidermal growth factor- (EGF-) stimulated internalization of the receptor. Two regions of the EGFr adjacent to this domain have been defined previously as internalization domains. The present work shows that the mutation of negatively charged amino acid residues near Tyr992 to their uncharged analogues increases the rate of EGF receptor internalization. In addition, the conversion of Tyr992, which is an EGFr ligand-induced autophosphorylation site, to phenylalanine also increases the rate of receptor internalization. However, the mutation of Tyr992 to a glutamate residue does not alter the receptor internalization rate. In addition, the truncation of the EGFr at glutamate 996 reduces the internalization rate by half. This result confirms previous reports that residues immediately C-terminal to Glu996 are necessary to allow the normal rate of ligand-induced receptor endocytosis. The data suggest that negative charge in the vicinity of Tyr992, and potentially the phosphorylation of the EGFr at Tyr992, reduces the rate of ligand-induced receptor endocytosis. This reduction in internalization rate increases the lifetime of the activated EGFr in the plasma membrane by about 70%, thus suggesting that phosphorylation of Tyr992 acts to increase the signaling capacity of the EGF receptor even as it directly acts as an SH2 binding site.
A New Fluorination Method (1938)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA New Fluorination MethodAlbert L. HenneCite this: J. Am. Chem. Soc. 1938, 60, 7, 1569–1571Publication Date (Print):July 1, 1938Publication History Published online1 May 2002Published inissue 1 July 1938https://doi.org/10.1021/ja01274a015RIGHTS & PERMISSIONSArticle Views141Altmetric-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 InReddit PDF (367 KB) Get e-Alerts Get e-Alerts