gebhart/patrepeval huggingface dataset:
Mechanically Activated MoO3. 1. Particle Size, Crystallinity, and Morphology (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMechanically Activated MoO3. 1. Particle Size, Crystallinity, and MorphologyG. Mestl, B. Herzog, R. Schloegl, and H. KnoezingerCite this: Langmuir 1995, 11, 8, 3027–3034Publication Date (Print):August 1, 1995Publication History Published online1 May 2002Published inissue 1 August 1995https://doi.org/10.1021/la00008a030RIGHTS & PERMISSIONSArticle Views518Altmetric-Citations43LEARN 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 (960 KB) Get e-Alerts Get e-Alerts
Differential effect of maternal diet supplementation with α-Linolenic adcid or n-3 long-chain polyunsaturated fatty acids on glial cell phosphatidylethanolamine and phosphatidylserine fatty acid profile in neonate rat brains (2010)

The present study confirms that early supplementation of maternal diet with n-3 fatty acids supplied as LC-PUFA is more efficient in increasing n-3 in brain glial cell PE and PS in the neonate than ALA. Negative correlation between n-6 DPA, a conventional marker of DHA deficiency, and DMA in PE suggests n-6 DPA that potentially be considered as a marker of tissue ethanolamine plasmalogen status. The combination of multivariate and bivariate statistics allowed to underline that the accretion pattern of n-3 LC-PUFA in PE and PS differ.
Optimal control approaches to switching power converters (2003)

Minimization of a specified cost function is a standard approach to optimal control that unifies large-signal and small-signal performance. Here, quadratic output-error cost functions are considered for power converters. The conventional form of quadratic function is intractable for many converters. Several cost functions which approximate it, but are easier to apply, are introduced. Examples include a cycle-by-cycle quadratic function, a cost function based on the stored energy in a converter, and fast-switching approximations to quadratic functions. These functions are studied for dynamic performance and stability. Results are shown to provide good performance, with little distinction between large and small disturbances.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Accelerating snort NIDS using NetFPGA-based Bloom filter (2014)

In recent years, network intrusion detection systems (NIDS) have faced a serious throughput challenge as a result of the rapid increase of network links to 1 and 10 Gbps rates. Consequently, this calls for NIDS to have wire-speed packet processing and real-time detection of malicious traffic. Snort is the most popular NIDS. Snort is an open source software-based NIDS and runs as a single threaded application. Snort processing and detection capabilities can be limited in networks with 1 and 10 Gbps network links. To overcome such a limitation, we present a design and implementation of two layer NIDS for accelerating Snort detection. The design combines hardware and software components whereby Snort operates as the second line of defense after hardware-assisted inspection of packet headers. In our design, Snort's frequently used rules are offloaded from Snort to a NetFPGA-based hardware layer. The NetFPGA implementation is based on Bloom filter to analyze and filter incoming packets with header fields matching those of frequently used rules. The second line of defense will dynamically offload the most frequently triggered rules to the NetFPGA and will only be executed if deep packet analysis is required for the incoming packet. The experimental results show a significant improvement in the CPU usage and an enormous reduction in packet loss when using Snort with NetFPGA filtering.
Simulation of behavior of wheel on uneven surfaces (2022)

A wheel contacts with a rail on the track. Therefore, wear occurs at the contact area between the wheel and the rail. Wear on the wheel and the rail gradually progresses because the wheel and the rail contact with each other constantly. Then, periodic unevenness occurs such as wavy wear on the rail. This wear causes amplification of vibration during driving. This phenomenon leads to various problems, such as deterioration of riding comfort and noise. As a countermeasure, the rail is scraped to remove rail irregularities. However, it is costly. Therefore, if the contact conditions between the wheel and the rail that reduce wheel-rail wear are clearly, it may lead to lengthen the grinding cycle and cost saving. However, it is difficult to observe the process of shape change with time such as wear. Therefore, we focused on DEM. In this study, circular particles arranged in a regular pattern are regarded as rails in DEM. The behavior of the wheel when it runs on the rail was investigated. On the other hands, running experiments were conducted using this model, and the results of the experiments and analysis were compared. As a result, in the analysis, it was found that the vertical acceleration level of the wheel particles increases as the rail particle spacing increases. Also, in the experiment, it was found that the acceleration level increases as the wheel and rail wear.
Solving Systems of Random Quadratic Equations via Truncated Amplitude Flow (2016)

This paper presents a new algorithm, termed \emph{truncated amplitude flow} (TAF), to recover an unknown vector $\bm{x}$ from a system of quadratic equations of the form $y_i=|\langle\bm{a}_i,\bm{x}\rangle|^2$, where $\bm{a}_i$'s are given random measurement vectors. This problem is known to be \emph{NP-hard} in general. We prove that as soon as the number of equations is on the order of the number of unknowns, TAF recovers the solution exactly (up to a global unimodular constant) with high probability and complexity growing linearly with both the number of unknowns and the number of equations. Our TAF approach adopts the \emph{amplitude-based} empirical loss function, and proceeds in two stages. In the first stage, we introduce an \emph{orthogonality-promoting} initialization that can be obtained with a few power iterations. Stage two refines the initial estimate by successive updates of scalable \emph{truncated generalized gradient iterations}, which are able to handle the rather challenging nonconvex and nonsmooth amplitude-based objective function. In particular, when vectors $\bm{x}$ and $\bm{a}_i$'s are real-valued, our gradient truncation rule provably eliminates erroneously estimated signs with high probability to markedly improve upon its untruncated version. Numerical tests using synthetic data and real images demonstrate that our initialization returns more accurate and robust estimates relative to spectral initializations. Furthermore, even under the same initialization, the proposed amplitude-based refinement outperforms existing Wirtinger flow variants, corroborating the superior performance of TAF over state-of-the-art algorithms.
A new approach of photometric stereo from linear image representation under close lighting (2011)

In this paper, we propose a novel method for shape from shading and representing intensity images of objects illuminated by near point light sources, where the distance between a light source and an object is small. Our image representation model is a linear model, and thus, the computational cost for analyzing intensity images is very small comparing with the non-linear model. We introduce an intensity projection matrix, and show that this matrix realizes the linear representation of near light source images. Furthermore, we propose a method for estimating the intensity projection matrices reliably. Finally, we derive a multilinear constraint from the intensity projection matrices, which enables us to generate images under arbitrary near light sources from 4 basis intensities linearly. The experimental results show that the proposed method can generate much more accurate images under near light sources than the traditional linear intensity model defined under infinite light source.
Design consideration for folding/interpolation ADC with SiGe HBT (2002)

This paper describes the design and performance of a high-speed 6-bit ADC using SiGe HBT for measuring-instrument applications. We show that the Gummel-Poon model suffices for SiGe HBT modeling and then we describe that the folding/interpolation architecture as well as simple, differential circuit design are suitable for ADC design with SiGe HBT. Measured results show that the nonlinearity of the ADC is within /spl plusmn/1/2 LSB, and the effective bits are 5.2 bits at an input frequency of 100 MHz and 4.2 bits at 200 MHz with 768 MS/s. We also describe some design issues for folding/interpolation ADC.
A double-blind, placebo-controlled, single-ascending-dose intravenous infusion study of rHIgM22 in subjects with multiple sclerosis immediately following a relapse (2022)

Although limited by high variability and small sample size, the data suggest enhanced CNS uptake associated with a drop in CSF levels. This study demonstrated safety of an antibody directed to myelin and oligodendrocytes in the course of active demyelinating disease. Further research into rHIgM22 is warranted.<b>ClinicalTrials.gov</b>: NCT02398461 https://clinicaltrials.gov/ct2/show/study/NCT02398461?term=M22&draw=2&rank=8.
Molecular Assembly in Block Copolymer-Surfactant Nanoparticle Dispersions: Information on Molecular Exchange and Apparent Solubility from High-Resolution and PFG NMR (2021)

Internally structured block copolymer-surfactant particles are formed when the complex salts of ionic-neutral block copolymers neutralized by surfactant counterions are dispersed in aqueous media. Here, we report the <sup>1</sup>H NMR signal intensities and self-diffusion coefficients (<i>D</i>, from pulsed field gradient nuclear magnetic resonance, PFG NMR) of trimethyl alkylammonium surfactant ions and the poly(acrylamide)-<i>block</i>-poly(acrylate) (PAAm-<i>b</i>-PA) polyions forming such particles. The results reveal the presence of an "NMR-invisible" (slowly exchanging) fraction of aggregated surfactant ions in the particle core and an "NMR-visible" fraction consisting of surface surfactant ions in rapid exchange with the surfactant ions dissociated into the aqueous domain. They also confirm that the neutral PAAm blocks are exposed to water at the particle surface, while the PA blocks are buried in the particle core. The self-diffusion of the polyions closely agree with the self-diffusion of a hydrophobic probe molecule solubilized in the particles, showing that essentially all copolymer chains are incorporated in the aggregates. Through centrifugation, we prepared macroscopically phase-separated systems with a phase concentrated in particles separated from a clear dilute phase. <i>D</i> values for the surfactant and block copolymer indicated that the dilute phase contained small aggregates (ca. 5 nm) of surfactant ions and a few anionic-neutral block copolymer chains. Regardless of the overall concentration of the sample, the fraction of block copolymer found in the dilute phase was nearly constant. This indicates that the dilute fraction represented a tail of small particles created by the dispersion process rather than a true thermodynamic solubility of the complex salts.
Synthesis of amphiphilic block copolymers bearing stable nitroxyl radicals Part A Polymer chemistry (2010)

We present here the synthesis of two kinds of amphiphilic block copolymers, a diblock copolymer MPEG‐b‐PTAm and a triblock copolymer MPEG‐b‐PLA‐b‐PTAm, which can self‐assemble into micelles with nitroxyl radicals‐containing PTAm segment in the core. The structure of the block copolymers was characterized by ¹H NMR and GPC. Dynamic laser light scattering and transmission electron microscopy were used to study the micellar behavior of the two block copolymers in aqueous solution. The micelles carrying nitroxyl radicals in the core can generate electron paramagnetic resonance, which is stable for a period of time up to 8 min even in the presence of reducing reagent such as ascorbic acid. The enhanced stability against the reducing agent was ascribed to the inaccessibility of the nitroxyl radical core placed in the interior of the micelles. Combined with the biocompatibility, these micelles were promising to be used as the EPR probes for bioimaging in vivo.
Bond-Additivity Correction of Ab Initio Computations for Accurate Prediction of Thermochemistry (1998)

This paper reviews a method for the correction of ab-initio derived molecular energy computations, for determination of thermochemical data of sufficient accuracy for application to chemical modeling. The basic concept is the use of a computationally inexpensive approach MP4/6-31G**//HF-6-31G*, which enables a large number of molecules to be computed, and combines this with a bond-additivity correction scheme. The basic concept behind the bond additivity approach is that errors in the energy computation are systematic with the type of bond, and that calibration for each bond class from comparison with molecules of known energy allow for a correction to the computed energy.
Origin of the Tetragonal Ground State of Heusler Compounds (2017)

Spin-transfer-torque magnetic random-access memory (STT-MRAM) is one of the leading emerging technologies for nonvolatile memory. Key to its development is identifying magnetic materials with sufficient perpendicular magnetic anisotropy (PMA). The authors describe the general mechanism of tetragonal distortion in Heusler compounds, a class of promising materials for STT-MRAM, with over 2000 members. This study offers guidance for finding tetragonal Heusler alloys with high PMA.
Vectorial thin-element approximation: a semirigorous determination of Kirchhoff's boundary conditions (2007)

A semirigorous model is presented that bridges the gap between classical scalar diffraction theory on the one hand and fully rigorous simulation models on the other. It falls back on the basic ideas of scalar diffraction theory, especially the Kirchhoff approximation. In contrast to classical techniques, however, the boundary values are determined by rigorous methods of the stratified medium theory in the scope of a fully vectorial formulation. By this means the proposed approach takes vertical rigorous coupling effects inside the grating into account while neglecting the lateral ones. We therefore call this method semirigorous and use the name vectorial thin-element approximation. A direct comparison with rigorous coupled-wave analysis as a fully rigorous simulation model allows a detailed discussion of its range of validity and demonstrates a reduction of computation time of the order of 3 magnitudes. In addition, it also reveals deeper insight into the details of the electrodynamics inside diffracting structures. Some examples will demonstrate this benefit.
Investigation on Molybdenum and Its Conductive Oxides as p-Type Metal Gate Candidates (2008)

In this work, we studied molybdenum (Mo) and its conductive oxides for p-type metal gate application. Three compositions of have been investigated. The resistivity of was found to significantly increase with the oxygen incorporation. A clear phase separation of all compositions was observed after high-temperature thermal treatment. The incorporation of oxygen was found to be effective to increase the work function (WF) of Mo. However, after full device integration, a significant WF decrease of was observed, which may be induced during the high-temperature junction activation process. This high-temperature process also led to a significant interfacial silicon oxide layer growth for gated stacks. The equivalent oxide thickness dependent flatband voltage roll-off behavior and gate leakage will also be discussed.
A New Experimental Infection Model in Ferrets Based on AerosolisedMycobacterium bovis (2011)

There is significant interest in developing vaccines to control bovine tuberculosis, especially in wildlife species where this disease continues to persist in reservoir species such as the European Badger (Meles meles). However, gaining access to populations of badgers (protected under UK law) is problematic and not always possible. In this study, a new infection model has been developed in ferrets (Mustela furo), a species which is closely related to the badger. Groups of ferrets were infected using a Madison infection chamber and were examined postmortem for the presence of tuberculous lesions and to provide tissue samples for confirmation of Mycobacterium bovis by culture. An infectious dose was defined, that establishes infection within the lungs and associated lymph nodes with subsequent spread to the mesentery lymph nodes. This model, which emphasises respiratory tract infection, will be used to evaluate vaccines for the control of bovine tuberculosis in wildlife species.
A Comparative Study of Feedforward Tuning Methods for Wafer Scanning Systems (2008)

The use of feedforward control is beneficial for high-performance trajectory tracking in many motion control systems. Three methods of designing and tuning feedforward control signals (Iterative Learning Control, Iterative Controller Tuning, and Adaptive Feedforward Control) for a wafer scanner system are presented and compared. For this application, the main sources of tracking error are due to phase mismatch and nonlinear force ripple disturbance. The objective is to compare the performance of these three methods in compensating for error arising from these sources. The methods are compared based on a set of metrics. Comparison is followed by a discussion on advantages and disadvantages of each method including ability to reduce error during acceleration or scan phases of the trajectory, necessary assumptions, effect of inaccurate modeling, and effect of noise.
iCN718, an Updated and Improved Genome-Scale Metabolic Network Reconstruction of Acinetobacter baumannii AYE (2018)

<i>Acinetobacter baumannii</i> has become an urgent clinical threat due to the recent emergence of multi-drug resistant strains. There is thus a significant need to discover new therapeutic targets in this organism. One means for doing so is through the use of high-quality genome-scale reconstructions. Well-curated and accurate genome-scale models (GEMs) of <i>A. baumannii</i> would be useful for improving treatment options. We present an updated and improved genome-scale reconstruction of <i>A. baumannii</i> AYE, named iCN718, that improves and standardizes previous <i>A. baumannii</i> AYE reconstructions. iCN718 has 80% accuracy for predicting gene essentiality data and additionally can predict large-scale phenotypic data with as much as 89% accuracy, a new capability for an <i>A. baumannii</i> reconstruction. We further demonstrate that iCN718 can be used to analyze conserved metabolic functions in the A. baumannii core genome and to build strain-specific GEMs of 74 other <i>A. baumannii</i> strains from genome sequence alone. iCN718 will serve as a resource to integrate and synthesize new experimental data being generated for this urgent threat pathogen.
A service plane over the PCE architecture for automatic multidomain connection-oriented services (2008)

In this article we concentrate on the automated provisioning of inter-AS services based on GMPLS-TE technology. We consider a provider alliance where TE connections are established between the members of the alliance. We propose an efficient and economically feasible architecture for the automatic provisioning of inter-AS GMPLS-TE, based on the introduction of a multidomain service plane coupled with the PCE-based architecture.
Early Revascularization of Membranous Inlay Bone Graft in Canine Mandible Model (2002)

The early revascularization of a membranous inlay bone graft in a canine mandible was investigated using bone scans and histological examinations. Eight 5-month-old mongrel dogs were used as the subjects. The inlay bone graft, a 1- x 2-cm critically sized bone, was completely separated from the lower border of the canine mandible and then refixed to the original site. Bone scans and histological examinations were performed in the first, second, third, and fourth postoperative weeks. The bone scan in the first postoperative week revealed radioisotope uptake on the margin of the grafted bone with an isotope count that was 21% of the normal bone uptake. In the second postoperative week, the radioisotope uptake in the grafted bone increased to 52% of the normal bone uptake. In the third and fourth postoperative weeks, the isotope uptakes were 111% and 124%, respectively. The histological findings in the first postoperative week showed an absence of osteoblastic activity and 6 viable blood vessels in a field magnified x 200, which was the equivalent of 25% of the vessels of the normal bone. In the second postoperative week, osteoblastic activity was noted, and the number of viable blood vessels increased to 15, that is, 63% of the vessels of the normal bone. In the third postoperative week, there was an increase in osteoblastic activity, and the number of viable blood vessels was 21, that is, 88% of the vessels of the normal bone. In the fourth postoperative week, there was a marked increase in osteoblastic activity with the number of vessels reaching 23, that is, 96% of the normal bone. In summary, revascularization of the membranous inlay bone graft began within the first week after the bone graft and thereafter gradually increased. In the third postoperative week, revascularization returned to a near-normal value compared with the value of the adjacent normal mandibular bone.
The structure of human CST reveals a decameric assembly bound to telomeric DNA (2020)

The CTC1-STN1-TEN1 (CST) complex is essential for telomere maintenance and resolution of stalled replication forks genome-wide. Here, we report the 3.0-angstrom cryo-electron microscopy structure of human CST bound to telomeric single-stranded DNA (ssDNA), which assembles as a decameric supercomplex. The atomic model of the 134-kilodalton CTC1 subunit, built almost entirely de novo, reveals the overall architecture of CST and the DNA-binding anchor site. The carboxyl-terminal domain of STN1 interacts with CTC1 at two separate docking sites, allowing allosteric mediation of CST decamer assembly. Furthermore, ssDNA appears to staple two monomers to nucleate decamer assembly. CTC1 has stronger structural similarity to Replication Protein A than the expected similarity to yeast Cdc13. The decameric structure suggests that CST can organize ssDNA analogously to the nucleosome's organization of double-stranded DNA.
Substrate Stiffness Affects Laminin-332 Matrix Deposition in Cultured Keretinocytes (2007)

It has been reported that the mechanical properties of a substrate influence cell motility, morphology, and adhesion [1–3]. This work is an attempt to move a step further beyond cells’ sensing the mechanical properties of their environment, by determining whether the secretion and assembly of laminin extracellular matrix is regulated by the mechanical environment in which the cell is placed. We hypothesize that this matrix then influences the behavior of the cell, particularly with regard to its motility.