gebhart/patrepeval huggingface dataset:
Calibration and Profile based Synopses Error Estimation and Synopses Reconciliation (2007)

An important factor in the effective utilization of data synopses is the ability to have good a priori estimates on their expected query approximation errors. Such estimates are essential for the appropriate decisions regarding which synopses to build and how much space to allocate to them, which are also at the heart of the synopses reconciliation problem. We present a novel synopses error estimation method based on the construction of synopses-dependant error estimation functions. These functions are computed in a pre-processing stage using a calibration method. Subsequently, they are used to provide ad hoc error estimation w.r.t. given data sets and query workloads based only on their statistical profiles. We also present a novel approach to synopses reconciliation, using the error-estimation functions within synopses reconciliation algorithms, gaining significant efficiency improvements by lowering to a minimum and even avoiding interference to the operational databases. Our method enables the first practical solution for the dynamic synopses reconciliation problem.
A Novel Technique for the Extraction of Fetal ECG Using Polynomial Networks (2005)

In this paper, we propose a novel technique for extracting fetal electrocardiogram (FECG) from a thoracic ECG recording and an abdominal ECG recording of a pregnant woman. The polynomial networks technique is used to nonlinearly map the thoracic ECG signal to the abdominal ECG signal. The FECG is then extracted by subtracting the mapped thoracic ECG from the abdominal ECG signal. Visual test results obtained from real ECG signals show that the proposed algorithm is capable of reliably extracting the FECG from two leads only. The visual quality of the FECG extracted by the proposed technique is found to meet or exceed that of published results using other techniques such as the independent component analysis.
EEG effects of ECT: Implications for rTMS (2000)

Electroconvulsive therapy (ECT) involves the use of electrical stimulation to elicit a series of generalized tonic-clonic seizures for therapeutic purposes and is the most effective treatment known for major depression. These treatments have significant neurophysiologic effects, many of which are manifest in the electroencephalogram (EEG). The relationship between EEG data and the response to ECT has been studied since the 1940s, but for many years no consistent correlates were found. Recent studies indicate that a number of specific EEG features recorded during the induced seizures (ictal EEG) as well as before and after a course of treatment (interictal EEG) are related to both the therapeutic efficacy and cognitive side effects. Similar to ECT, repetitive transcranial magnetic stimulation (rTMS), which involves focal electromagnetic stimulation of cortical neurons, has also been studied as an antidepressant therapy and also appears to have neurophysiologic effects, although these have not been as fully investigated as is the case with ECT. Given the similarity of these treatments, it is natural to consider whether advances in understanding the electrophysiologic correlates of the ECT response might have implications for rTMS. The present article reviews the literature on the EEG effects of ECT and discusses the implications in terms of the likely efficacy and side effects associated with rTMS in specific anatomic locations, the potential for producing an antidepressant response with rTMS without eliciting seizure activity, eliciting focal seizures with rTMS, and the possibility of using rTMS to focally modulate seizure induction and spread with ECT to optimize treatment.
Rolling Bearing Diagnosis Based on the Higher Order Spectra (2020)

Bearing defect diagnosis is traditionally done using the demodulation/enveloping technology. Diagnosis is mostly based on the spectrum of the squared envelope signal. In literature, the use of the higher order spectra (HOS) has shown to have a tremendous potential for vibration based diagnostics. In this paper we implemented and experimentally validated the higher order spectra based on the envelope analysis for the diagnosis of ball bearing defects. The implemented technology employs the spectral kurtosis to obtain a frequency band for the demodulation and the third order normalized spectra, i.e. the bicoherence for diagnosis of bearing fault. The high effectiveness of the diagnostics of the implemented technology has been experimentally revealed and compared with that of well-known demodulation/enveloping technology.
Integrated dye-sensitized solar cell module with conversion efficiency of 8.2% (2009)

We investigated an integrated dye-sensitized solar cell (DSC) module composed of a number of rectangular cells connected in series. Because neighboring cells are processed in reverse, the module is known as the W-contact module. It achieves a high active area of 85% by eliminating the interconnection between neighboring cells. By adjusting the transmittance of the Pt-coated counterelectrode, the TiO2 thickness, and the composition of the electrolyte, we achieved an overall energy conversion efficiency of 8.2% (aperture area of 25.45 cm2) as measured by a public test center under AM 1.5 irradiation. This sets a record for the confirmed efficiency of a DSC submodule.
P‐73: Intelligent Privacy: A Context Aware Illumination System for Sensitive Data (2016)

We present a novel control approach to provide programmatically adjustable privacy for sensitive data on directional displays. The method comprises detection and tracking of observers in camera imagery, relating the 2D positions to their 3D position in front of the display, generating the appropriate illumination pattern, and transmitting said pattern to the illumination control unit. The novelty is in the way we choose rules to change the illumination pattern, and that the sensitive data remains visible at near constant brightness for the authorized observer. The system facilitates tracking and reasoning depending on identification of a set of observers. In this work, we discuss the calibration step, head tracking, pattern generation and its dependency on the noise in the observation process, input modalities, and the context based rules for the choice ofthe display modality.
Computational Study of Computed Tomography Contrast Gradients in Models of Stenosed Coronary Arteries (2015)

Recent computed tomography coronary angiography (CCTA) studies have noted higher transluminal contrast agent gradients in arteries with stenotic lesions, but the physical mechanism responsible for these gradients is not clear. We use computational fluid dynamics (CFD) modeling coupled with contrast agent dispersion to investigate the mechanism for these gradients. Simulations of blood flow and contrast agent dispersion in models of coronary artery are carried out for both steady and pulsatile flows, and axisymmetric stenoses of severities varying from 0% (unobstructed) to 80% are considered. Simulations show the presence of measurable gradients with magnitudes that increase monotonically with stenotic severity when other parameters are held fixed. The computational results enable us to examine and validate the hypothesis that transluminal contrast gradients (TCG) are generated due to the advection of the contrast bolus with time-varying contrast concentration that appears at the coronary ostium. Since the advection of the bolus is determined by the flow velocity in the artery, the magnitude of the gradient, therefore, encodes the coronary flow velocity. The correlation between the flow rate estimated from TCG and the actual flow rate in the computational model of a physiologically realistic coronary artery is 96% with a R2 value of 0.98. The mathematical formulae connecting TCG to flow velocity derived here represent a novel and potentially powerful approach for noninvasive estimation of coronary flow velocity from CT angiography.
An efficient method to determine double Gaussian fluence parameters in the <scp>eclipse</scp>™ proton pencil beam model (2016)

The authors' method significantly reduced the time to find the desirable proton fluences of the clinical energies. The method is extensively validated and can be applied to any proton centers using PBS and the eclipse TPS.
Oxidative Desulfurization of Hydrocarbon Fuels (2011)

New requirements for very low sulfur content (10 ppm) in liquid motor fuels demand novel approaches for ultra-deep desulfurization. For production of near-zero-sulfur diesel and low-sulfur fuel oil, removal of refractory sulfur compounds, like 4,6-dimethyldibenzothiophene and other alkyl-substituted thiophene derivatives, is necessary. Elimination of these compounds by hydrodesulfurization (HDS) requires high hydrogen consumption, high pressure equipment, and new catalysts. Various oxidative desulfurization processes, including recent advances in this field for diesel fuels, and the drawbacks of this technology in comparison with HDS are examined and discussed. It is shown that the oxidation of sulfur compounds to sulfones with hydrogen peroxide allows for production of diesel fuels with a sulfur content of 10 ppmw or lower at atmospheric pressure and room temperature. The gas phase oxidative desulfurization of sulfur compounds with air or oxygen is feasible at atmospheric pressure and higher temperatures: 90–300 °С and offers better economic solutions and incentives.
Discovery of Potent and Selective Inhibitors of Human Platelet-Type 12- Lipoxygenase (2011)

We report the discovery of novel small molecule inhibitors of platelet-type 12-human lipoxygenase, which display nanomolar activity against the purified enzyme, using a quantitative high-throughput screen (qHTS) on a library of 153607 compounds. These compounds also exhibit excellent specificity, >50-fold selectivity vs the paralogues, 5-human lipoxygenase, reticulocyte 15-human lipoxygenase type-1, and epithelial 15-human lipoxygenase type-2, and >100-fold selectivity vs ovine cyclooxygenase-1 and human cyclooxygenase-2. Kinetic experiments indicate this chemotype is a noncompetitive inhibitor that does not reduce the active site iron. Moreover, chiral HPLC separation of two of the racemic lead molecules revealed a strong preference for the (-)-enantiomers (IC(50) of 0.43 ± 0.04 and 0.38 ± 0.05 μM) compared to the (+)-enantiomers (IC(50) of >25 μM for both), indicating a fine degree of selectivity in the active site due to chiral geometry. In addition, these compounds demonstrate efficacy in cellular models, which underscores their relevance to disease modification.
GaN enhancement mode metal‐oxide semiconductor field effect transistors (2005)

The initial demonstration of an enhancement mode MgO/p-GaN metal-oxide semiconductor field effect transistor (MOSFET) utilizing Si+ ion implanted regions under the source and drain to provide a source of minority carriers for inversion was reported. The breakdown voltage for an 80 nm thick MgO gate dielectric was ∼14 V, corresponding to a breakdown field strength of 1.75 MVcm–1 and the p-n junction formed between the p-epi and the source had a reverse breakdown voltage >15 V. Inversion of the channel was achieved for gate voltages above 6 V.The maximum transconductance was 5.4 µSmm–1 at a drain-source voltage of 5 V. (© 2005 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)
Interactive Dimensioning of Parametric Models (2015)

Abstract We propose a solution for the dimensioning of parametric and procedural models. Dimensioning has long been a staple of technical drawings, and we present the first solution for interactive dimensioning: a dimension line positioning system that adapts to the view direction, given behavioral properties. After proposing a set of design principles for interactive dimensioning, we describe our solution consisting of the following major components. First, we describe how an author can specify the desired interactive behavior of a dimension line. Second, we propose a novel algorithm to place dimension lines at interactive speeds. Third, we introduce multiple extensions, including chained dimension lines, controls for different parameter types (e.g. discrete choices, angles), and the use of dimension lines for interactive editing. Our results show the use of dimension lines in an interactive parametric modeling environment for architectural, botanical, and mechanical models.
Preparation and Electrochemistry of Silver Vanadium Phosphorous Oxide, Ag[sub 2]VO[sub 2]PO[sub 4] (2008)

Recently, there has been interest in phosphate cathodes for lithium batteries due to the excellent chemical and thermal stability of . Vanadium oxide bronzes have attracted attention due to silver vanadium oxide batteries being used as power implantable devices. We report the first investigation of silver vanadium phosphorous oxide as a cathode material in lithium cells. While the synthesis of has been previously reported, this is the first exploration of its electrochemistry. The material yielded and under constant current discharge and supported pulses above .
DRAMATIC IMPROVEMENTS IN CAUSTIC-SIDE SOLVENT EXTRACTION OF CESIUM THROUGH MORE EFFICIENT STRIPPING (2008)

Dramatic potential improvements to the chemistry of the Caustic-Side Solvent Extraction (CSSX) process are presented as related to enhancement of cesium stripping. The current process for removing cesium from the alkaline high-level waste (HLW) at the USDOE Savannah River Site employs acidic scrub and strip stages and shows remarkable extraction and selectivity properties for cesium. It was determined that cesium stripping can be greatly improved with caustic or near-neutral stages using sodium hydroxide and boric acid as scrub and strip solutions, respectively. Improvements can also be achieved by appending pH-sensitive functional groups to the calix[4]arene-crown-6 extractant. Addition of a proton-ionizable group to the calixarene frame leads to a dramatic pH swing of up to 6 orders of magnitude change in cesium distribution ratio.
Dielectric isolation using shallow oxide and polycrystalline silicon (1976)

Previous work with polycrystalline isolation was limited in density by enhanced diffusion which precluded walled emitter geometries. Oxide isolation schemes are limited in depth by loss of planarity due to oxide bumps and resultant degradation in photolithographic definitions. A technique has been developed which combines polycrystalline isolation of collectors and shallow oxide isolation of bases. This approach is capable of proriding deep dielectric isolation, surface planarity and the high density of walled emitter geometries, a combination heretofore unobtainable by any other means. This isolation scheme has been used to fabricate ECL gate chains. The transistors were located in 2.5 micron thick n-epi islands surrounded by 5 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">5</sup> ohm-cm polysilicon selectively oxidized with silicon nitride masking to a thickness of one micron. The oxide bump at the nitride mask was typically 3000 Å and the epipoly step height was as small as 2600 Å. The circuits have polysilicon resistors and were fabricated using both thermal diffusion and ion implantation. The speed-power product of these circuits was approximately one-half that of junction isolated circuits.
S-Transform Based FFNN Approach for Distribution Grids Fault Detection and Classification (2018)

Detection and classification of any anomaly at its commencement are very crucial for optimal management of assets in power system grids. This paper presents a novel hybrid approach that combines S-transform (ST) and feedforward neural network (FFNN) for the detection and classification of distribution grid faults. In this proposed strategy, the measured three-phase current signals are processed through ST with a view to extracting useful statistical features. The extracted features are then fetched to FFNN in order to detect and classify different types of faults. The proposed approach is implemented in two different test distribution grids modeled and simulated in real-time digital simulator and MATLAB/SIMULINK. The obtained results justify the efficacy of the presented technique for both noise-free and noisy data. In addition, the developed technique is independent of fault resistance, inception angle, distance, and prefault loading condition. Besides, the comparative results confirm the superiority and competitiveness of the developed technique over the available techniques reported in the literature.
Digital Beamforming and Non-Uniform Displaced Phase Centre Sampling in Bi- and Multistatic SAR (2004)

The displaced phase centre (DPC) technique will enable a wide swath SAR with high azimuth resolution. In a classic DPC system, the PRF has to be chosen such that the SAR carrier moves just one half of its antenna length between subsequent radar pulses. Any deviation from this PRF will result in a non-uniform sampling of the synthetic aperture. This paper shows that an unambiguous reconstruction of the SAR signal is also possible in case of such a non-optimum PRF. For this, an innovative reconstruction algorithm is derived, which enables a recovery of the unambiguous Doppler spectrum also in case of a non-uniform sampling of the synthetic aperture. This algorithm will also have a great potential for multistatic satellite constellations as well as the dual receive antenna mode in Radarsat 2 and TerraSAR-X.
Modulation of δ-Endotoxin Ion Channels (1995)

The importance of Delta-endotoxin-formed ion channels to the mode of action of these toxins is not fully understood, but there are no examples of toxicity without this function. Not all toxins have equivalent channel activity in planar lipid bilayers and the impact of receptor proteins in modulating channel function is just beginning to be evaluated. The activity of a single ion channel-producing toxin has not been rigorously evaluated. Channel conductance, frequency of gating, the frequency distribution of numerous possible conductant states, as well, and the duration of the on-state are important variables that require more careful analysis before the toxicity of this specific step in the mode of action is understood. It is important to emphasize that the mode of action of the delta endotoxins consists of several sequential events; so the relative strength of any one step can be modulated by the prior or subsequent events.
Secondary hardening steel having improved combination of hardness and toughness and method of preparation (1978)

A secondary hardening alloy steel composition consisting essentially of about 0.25 to 0.5% carbon, about 0.5 to 1.0% manganese, about 1.5 to 3.0% nickel, about 0 to 1.0% chromium, about 1.75 to 2.5% molybdenum, about 0 to 0.4% vanadium, and an additive selected from about 1 to 3% aluminum and a combination of at least about 1% aluminum and at least about 1% silicon for a combined Al + Si content of about 2 to 4%, the balance being iron and impurity elements. The present steel composition has the following characteristics: it exhibits a flat tempering response, it is hardenable upon tempering to a Rockwell C hardness of at least 50, and it has an improved combination of hardness vs. toughness properties after tempering in the secondary hardening range. A method of preparation is also described.
Realization of All-Optical XOR, NOR, and NAND Gates in Single Format by Using Semiconductor Optical Amplifiers (2007)

By using the cross gain modulation (XGM) characteristics of semiconductor optical amplifiers (SOAs), multi-functional all-optical logic gates including XOR, NOR, and NAND gates are successfully demonstrated at 10 Gbps in single format. Numerical simulation is also performed by using the transmission-line laser model (TLLM), which is confirmed by using three SOAs experimentally. These combined all-optical multi-functional logic gates will provide more complex and complicated all-optical logic operations.
A critical role for ChREBP-mediated FGF21 secretion in hepatic fructose metabolism (2016)

In summary, ChREBP and FGF21 constitute a signaling axis likely conserved in humans that mediates an essential adaptive response to fructose ingestion that may participate in the pathogenesis of NAFLD and liver fibrosis.
A series of pyromellitic diimides that improve the efficiency of rumen fermentation (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTA series of pyromellitic diimides that improve the efficiency of rumen fermentationBruce O. Linn, Lynn M. Paege, Patrick J. Doherty, Richard J. Bochis, Frank S. Waksmunski, Peter Kulsa, and Michael H. FisherCite this: J. Agric. Food Chem. 1982, 30, 6, 1236–1242Publication Date (Print):November 1, 1982Publication History Published online1 May 2002Published inissue 1 November 1982https://pubs.acs.org/doi/10.1021/jf00114a058https://doi.org/10.1021/jf00114a058research-articleACS PublicationsRequest reuse permissionsArticle Views285Altmetric-Citations9LEARN 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
MEMS Vibratory Gyroscopes: Structural Approaches to Improve Robustness (2008)

Fundamentals of Micromachined Vibratory Gyroscopes.- Fundamentals of Micromachined Gyroscopes.- Fabrication Technologies.- Mechanical Design of MEMS Gyroscopes.- Electrical Design of MEMS Gyroscopes.- Structural Approaches to Improve Robustness.- Linear Multi DOF Architecture.- Torsional Multi DOF Architecture.- Distributed Mass Architecture.- Conclusions and Future Trends.
Mechanisms of leukemia resistance to antibody dependent cellular cytotoxicity (2016)

Specific immunotherapy for acute leukemia remains a great unmet need. Native unmodified monoclonal antibody therapies, while promising, are inadequately effective for these malignancies, and multiple mechanisms for failure have been described. Antibody-dependent cellular cytotoxicity or phagocytosis is the primary modality of mAb-mediated cell killing <i>in vivo</i>, but ultimately leads to relapse of the leukemias, in model systems and in humans. By use of a T-cell receptor mimic mAb ESKM, derived against a WT1 peptide expressed in complex with HLA-A*02:01, whose only mechanism of therapeutic action is ADCC, we evaluated the mechanisms of leukemic relapse from its potent therapeutic action in mouse xenograft models of human leukemia. Leukemia escape was not associated with loss of the antigenic target, downregulation of cell surface HLA, antibody pharmacokinetic or biodistribution issues, or development of leukemia cell-intrinsic resistance to ADCC. Interestingly, the rapidity of leukemic growth determined whether leukemia was able to evade cytotoxicity independent of the presence of sufficient effector cells. By engineering leukemia cells with upregulated p27<sup>Kip1</sup> and slower cell cycling times, we show that relapse was inversely correlated with growth rates resulting in the eventual inadequacy of effector to target ratio. Moreover, lack of migration of effector cells into lymphomatous pockets of ALL also allowed local escape. Successful leukemia therapy with mAb might therefore be improved in similar situations by combination with measures to reduce burden and slow leukemia cell growth.