gebhart/patrepeval huggingface dataset:
Parasitic Capacitance in Copper-Foiled Medium-Voltage Filter Inductors (2020)

This paper characterizes three parasitic capacitances in copper-foiled medium-voltage inductors. It is found that the conventional modeling method overlooks the effect of the fringe field, which leads to inaccurate modeling of parasitic capacitances in copper-foiled inductors. To address this problem, the parasitic capacitances contributed by the fringe field is identified first, and a physics-based analytical modeling method for the parasitic capacitances contributed by the fringe field is proposed, which avoids using any empirical equations. The total parasitic capacitances are then derived for three different cases with three different core potentials, from which a three-terminal equivalent circuit is derived, and thus, the parasitic capacitances in copper-foiled inductors are explicitly identified. The calculated results show a close agreement with the measured capacitance by using an impedance analyzer.
Application of Parallel and Distributed Data Mining in e-Commerce (2000)

e-Commerce and Data Mining are inseparable. But Data Mining is a costly affair. So parallelization becomes inevitable. Also the web logs to be mined for revenue enhancement are distributed in nature. That brings in the distributed data mining. Here we discuss the sequential discovery of association rules first. Then we go on to see how that could be made parallel. We also see the application of the parallel and distributed approaches of data mining onto the web logs that are available due to the transactions taking place on the web.
C-Switches: Increasing Switch Radix with Current Integration Scale (2011)

In large switch-based interconnection networks, increasing the switch radix results in a decrease in the total number of network components, and consequently the overall cost of the network can be significantly reduced. Moreover, high-radix switches are an attractive option to improve the network performance in terms of latency, since hop count is also reduced. However, there are some problems related to the integration scale to design such single-chip switches. In this paper we discuss key issues and evaluate an interesting alternative for building high-radix switches going beyond the integration scale bounds. The idea basically consists in combining several current smaller single-chip switches to obtain switches having greater number of ports. This approach is independent of the evolution of single-chip switches and remains valid as integration scale keeps evolving. Simulation results show that with a correct internal switch design, this alternative achieves almost the same performance as single-chip switches with the same number of ports, which would be unfeasible with the current integration scale.
Enantioselective Photocycloaddition of 3-Hydroxyflavones: Total Syntheses and Absolute Configuration Assignments of (+)-Ponapensin and (+)-Elliptifoline (2012)

We have previously reported development of biomimetic, asymmetric [3 + 2] photocycloadditions between 3-hydroxyflavones and cinnamate dipolarophiles to access (-)-rocaglamide and related natural products. Herein, we describe enantioselective syntheses of aglain cycloadducts leading to the first total syntheses and absolute configuration assignments of the aglain natural products (+)-ponapensin and (+)-elliptifoline.
Modern Image Capture and Data Collection Technology (1995)

Computer data collection technology is intended to facilitate patient management and clinic administration. The systems should be devised for ease of usage and careful consideration should be given to the core set of data required and the task to be performed by the system. Security of data is important, and it must cover not only the inadvertent access to confidential data, but also must stop corrupt data from entering the system. Audit is becoming increasingly important, and the ability to achieve this should be inbuilt into any data collection system. A staged introduction of these systems is suggested without trying to achieve too much at the initial attempt. Adaptability is important so that as new technologies are introduced, the old systems should not be made redundant. Eventually it should be possible to achieve the goals set, and include fields for image capture of the colposcopic findings, which although not an essential requirement for such systems, is certainly a desirable one.
An Automated System for Genome Analysis to Support Microbial Whole-genome Shotgun Sequencing (2000)

We developed a semi-automated genome analysis system called GAMBLER in order to support the current whole-genome sequencing project focusing on alkaliphilic Bacillus halodurans C-125. GAMBLER was designed to reduce the human intervention required and to reduce the complications in annotating thousands of ORFs in the microbial genome. GAMBLER automates three major routines: analyzing assembly results provided by genome assembler software, assigning ORFs, and homology searching. GAMBLER is equipped with an interface for convenience of annotation. All processes and options are manipulatable through a WWW browser that enables scientists to share their genome analysis results without choosing computer platforms.
Insect - Pathogen synergisms are the foundation of weed biocontrol (1999)

Keystone works in the field of weed biological control were the pioneering studies by Australian workers leading to the control of Opuntia and Hypericum. While in these efforts, the pattern was set for how subsequent progjects would be conducted, a key element in their success has been ignored: synergism with plant pathogens. Insect/microbial interactions leading to high ecological impact and/or great economic losses have been documented and are imparted in the curriculum of the education of entomologists and plant pathologists: forest tree diseases, nematodes and soilborne fungi, insect vectoring of viruses and endosymbionts of insects. Practitioners in the field of biological weed control routinely ignore how the origins of weed biocontrol are founded on insect/pathogen synergisms and how these prominent interactions might provide models for improving weed biocontrol. There is ample opportunity and need to improve frequency of success and level of impact in weed biocontrol. There is ample opportunity and need to improve frequence of success and level of impact in weed biocontrol and the study of how synergisms might be better assured are needed. With increasing regulatory-based strictures on traditional methods based on widescale searches, host range testing and releases of multiple
Magnetic resonance imaging of living systems by remote detection (2023)

A novel approach to magnetic resonance imaging is disclosed. Blood flowing through a living system is prepolarized, and then encoded. The polarization can be achieved using permanent or superconducting magnets. The polarization may be carried out upstream of the region to be encoded or at the place of encoding. In the case of an MRI of a brain, polarization of flowing blood can be effected by placing a magnet over a section of the body such as the heart upstream of the head. Alternatively, polarization and encoding can be effected at the same location. Detection occurs at a remote location, using a separate detection device such as an optical atomic magnetometer, or an inductive Faraday coil. The detector may be placed on the surface of the skin next to a blood vessel such as a jugular vein carrying blood away from the encoded region.
IFN-γ and TNF-α Synergistically Induce Mesenchymal Stem Cell Impairment and Tumorigenesis via NFκB Signaling (2013)

An inflammatory microenvironment may cause organ degenerative diseases and malignant tumors. However, the precise mechanisms of inflammation-induced diseases are not fully understood. Here, we show that the proinflammatory cytokines interferon-γ (IFN-γ) and tumor necrosis factor α (TNF-α) synergistically impair self-renewal and differentiation of mesenchymal stem cells (MSCs) via nuclear factor κB (NFκB)-mediated activation of mothers against decapentaplegic homolog 7 (SMAD7) in ovariectomized (OVX) mice. More interestingly, a long-term elevated levels of IFN-γ and TNF-α result in significantly increased susceptibility to malignant transformation in MSCs through NFκB-mediated upregulation of the oncogenes c-Fos and c-Myc. Depletion of either IFN-γ or TNF-α in OVX mice abolishes MSC impairment and the tendency toward malignant transformation with no NFκB-mediated oncogene activation. Systemic administration of aspirin, which significantly reduces the levels of IFN-γ and TNF-α, results in blockage of MSC deficiency and tumorigenesis by inhibition of NFκB/SMAD7 and NFκB/c-FOS and c-MYC pathways in OVX mice. In summary, this study reveals that inflammation factors, such as IFN-γ and TNF-α, synergistically induce MSC deficiency via NFκB/SMAD7 signaling and tumorigenesis via NFκB-mediated oncogene activation.
Análise exploratória de dados espaciais da produção de café no estado do Paraná, 1980-2018 (2020)

O objetivo deste estudo foi realizar a análise exploratória dos dados espaciais (Aede) da produção de café dos municípios do estado do Paraná, no período 1980-2018. A fonte dos dados foi o Instituto Paranaense de Desenvolvimento Econômico e Social (Ipardes). Nesse período, a produtividade da cultura do café no estado do Paraná aumentou de cerca de 900 para 1.500 kg ha-1, com tendência de crescimento de 16,48 kg ha-1 por ano. A introdução de novas tecnologias na década de 1990 propiciou menor risco aos produtores, e o aumento da produtividade implicou a redução do custo médio da saca de café e o aumento da competitividade. No período de análise, ocorreu o deslocamento da maior parte da área colhida e da produção para as Mesorregiões Norte Pioneiro e Norte Central, que passaram a concentrar a produção e os municípios mais produtivos. Verificou-se uma autocorrelação espacial da produtividade dos municípios, e identificaram-se agrupamentos espaciais Alto-Alto dos municípios localizados, principalmente, nas Mesorregiões Norte Pioneiro e Norte Central do estado do Paraná, no ano de 2018.
Theoretical and Electrochemical Studies of Metformin as Corrosion Inhibitor for Mild Steel in Hydrochloric Acid Solution (2012)

The effect of Metformin was investigated by gravimetric, potentiodynamic polarization and electrochemical impedance spectroscopy. Polarization results revealed that Metformin acted as mixed type inhibitors. The inhibition efficiency increases with increasing the inhibitors concentration and decreases with increasing the temperature. The gravimetric and potentiodynamic polarization results were in good agreement with the electrochemical impedance spectroscopy data.
Determinants of male reproductive health disorders: the Men in Australia Telephone Survey (MATeS) (2010)

A range of lifestyle factors, more often associated with chronic disease, were significantly associated with male reproductive health disorders. Education strategies directed to improving general health may also confer benefits to male reproductive health.
Improvement of Quality and Electrical Properties of Sputtered Pb(Zr, Ti)O3 Films by Wet-Oxidation Process (1999)

A wet-oxidation process was proposed to improve the quality and electrical properties of Pb(Zr, Ti)O 3 (PZT) thin films prepared by the RF-magnetron sputtering technique. For the oxidation of metallic Pb in as-deposited PZT films, the wet-oxidation process was carried out using hydrogen peroxide solutions prior to postannealing for crystallization. In the case of PZT films on Pt/Ti/SiO 2 /Si substrates, the density of defects observed using an optical microscope was drastically decreased by means of the wet-oxidation process, and the shape of polarization vs voltage hysteresis loops of PZT films was also improved. In the case of PZT films on Pt/IrO 2 /SiO 2 /Si substrates, microvoids were diminished by means of the wet-oxidation process. For 70 nm-thick PZT films on Pt/IrO 2 /SiO 2 /Si substrates, hysteresis loops could not be measured without the wet-oxidation process. However, the films with the wet-oxidation process exhibited the slim-type hysteresis loop with a remanent polarization of over 23 µC/cm 2 even at 2 V and a coercive voltage of about 0.7 V.
Effects of gauge length and strain rate on fracture toughness of polyethylene terephthalate glycol (PETG) film using the essential work of fracture analysis (2000)

Abstract Essential Work of Fracture (EWF) analysis was used to study the fracture toughness of a PETG film. In the study of the gauge length ( Z ) effect on the specific essential work ( w e ) using Z = 50, 100, 150, 200 and 250 mm, it is observed that w e is Independent of gauge length, except that a slightly lower w e value was measured for Z = 50 mm. Interestingly, for specimens with long gauge lengths (Z ≥ 150 mm in this study), brittle fracture occurred. The minimum ligament length at which ductile/brittle transition took place was observed to decrease with increasing gauge length. There is a small strain rate effect on w e with loading rates less than 1 mm/min. But with higher loading rates, w e showeld no strain rate sensitivity.
Effects of Wettability on Three-Phase Flow in Porous Media (2000)

We study the effects of rock wettability on the flow of oil, water, and gas in hydrocarbon reservoirs. We describe the three-phase fluid configurations and displacement processes in a pore of polygonal cross section. Initially water-filled, water-wet pores are invaded by oil, representing primary oil migration. Where oil directly contacts the solid surface, the surface will change its wettability. We then consider water injection followed by gas injection for any possible combination of oil/water, gas/water, and gas/oil contact angles. We find the capillary pressures for the different displacement processes and determine the circumstances under which the various fluid configurations are stable. Using empirical expressions for the phase conductances, we find three-phase relative permeabilites for a bundle of pores of different sizes with constant triangular cross sections. For gas injection, we show that the oil remains connected in wetting layers down to low oil saturation with a characteristic layer drainage regime, which gives very high ultimate oil recoveries. The only exceptions are nonspreading oils in water-wet media and large gas/oil contact angles. The relative permeability of the phase of intermediate wettability depends on two saturations, while the relative permeabilities of the other phases are functions of their own saturation only. In water-wet media, oil is the intermediate-wet phase. In weakly oil-wet media, water is intermediate-wet. In strongly oil-wet media, gas is intermediate-wet. This finding contradicts the assumptions made in many empirical models that gas is always the most nonwetting phase and that its relative permeability depends only on the gas saturation. This work indicates appropriate functional dependencies for three-phase relative permeabilities, and represents a necessary first step toward the development of a predictive pore-scale model that accounts for the effects of wettability in three-phase flow.
MPC for a diesel engine air path using an explicit approach for constraint systems (2006)

The air path of an internal combustion engine is a classical example of MIMO system with actuator constraints and high dynamic requirements. While the classical approach consists in using simple, decoupled heuristic controllers and empirical limitations, this paper proposes to state the problem in terms of an optimal control problem with input constraints and to solve it in a model based environment. To this end, a recently developed controller design - explicit MPC - is used to calculate the explicit solution of the state feedback control law offline and to store it in tables for online controller selection. The combination of plant and switched controller leads to a piecewise linear and discrete system - a special form of hybrid system. The approach has been tested on a production diesel engine yielding impressive improvements in terms of soot while compared with the basic application.
Compensating temperature-induced ultrasonic phase and amplitude changes (2016)

In ultrasonic structural health monitoring (SHM), environmental and operational conditions, especially temperature, can significantly affect the propagation of ultrasonic waves and thus degrade damage detection. Typically, temperature effects are compensated using optimal baseline selection (OBS) or optimal signal stretch (OSS). The OSS method achieves compensation by adjusting phase shifts caused by temperature, but it does not fully compensate phase shifts and it does not compensate for accompanying signal amplitude changes. In this paper, we develop a new temperature compensation strategy to address both phase shifts and amplitude changes. In this strategy, OSS is first used to compensate some of the phase shifts and to quantify the temperature effects by stretching factors. Based on stretching factors, empirical adjusting factors for a damage indicator are then applied to compensate for the temperature induced remaining phase shifts and amplitude changes. The empirical adjusting factors can be trained from baseline data with temperature variations in the absence of incremental damage. We applied this temperature compensation approach to detect volume loss in a thick wall aluminum tube with multiple damage levels and temperature variations. Our specimen is a thick-walled short tube, with dimensions closely comparable to the outlet region of a frac iron elbow where flow-induced erosion produces the volume loss that governs the service life of that component, and our experimental sequence simulates the erosion process by removing material in small damage steps. Our results show that damage detection is greatly improved when this new temperature compensation strategy, termed modified-OSS, is implemented.
Properties of GaP(001) surfaces treated in aqueous HF solutions (2007)

Chemically cleaned GaP(001) surfaces in aqueous HF solutions have been studied using spectroscopic ellipsometry (SE), ex situ atomic force microscopy (AFM), x-ray photoelectron spectroscopy (XPS), wettability, and photoluminescence (PL) measurements. The SE data clearly indicate that the solutions cause removal of the native oxide film immediately upon immersing the sample (≤1 min). The SE data, however, suggest that the native oxide film cannot be completely etch-removed. This is due to the fact that as soon as the etched sample is exposed to air, the oxide starts to regrow. The SE estimated roughness is ∼1 nm, while the AFM roughness value is ∼0.3 nm. The XPS spectra confirm the removal of the native oxide and also the presence of regrown oxide on the HF-etched GaP surface. The wettability measurements indicate that the HF-cleaned surface is hydrophobic, which is in direct contrast to those obtained from alkaline-cleaned surfaces (hydrophilic). A slight increase in the PL intensity is also observed after etching in aqueous HF solutions.
Renormalized Integral-equation Method for 3D Acoustic Full-waveform Modeling (2013)

We present a frequency-domain renormalized integral-equation formulation for solving a three-dimensional visco-acoustic medium using an iterative solver. Upon applying this special renormalization, the resulting integral-equation operator can be proven to have a contraction property. Hence, solving the linear-system of equations using a Krylov optimization method, will result in a good convergence rate. Furthermore since the matrix-vector multiplication can be done using a Fast-Fourier transform (FFT) technique, its operation is of the order of N Log N, where N is the size of the discretization grid. This technique also allows us to use matrix-free implementation. Hence, the memory usage is about N. Numerical tests show that the computational time and memory usage of this renormalized integral-equation approach can be quite competitive with the frequency-domain finite-difference iterative solver. Further, the numerical examples demonstrate that it is possible to solve a problem with over 100 million unknowns using an integral-equation approach.
In vivo translatome profiling reveals early defects in ribosome biology underlying SMA pathogenesis (2017)

Abstract Background Genetic alterations impacting on ubiquitously expressed proteins involved in mRNA metabolism often result in neurodegenerative conditions, with increasing evidence suggesting that translational defects can contribute to disease. Spinal Muscular Atrophy (SMA) is a neuromuscular disease caused by low levels of SMN protein, whose role in disease pathogenesis remains unclear. Results By determining in parallel the in vivo transcriptome and translatome in SMA mice we identified a robust decrease in translational efficiency, arising during early stages of disease. Translational defects affected translation-related transcripts, were cell autonomous, and were fully rescued after treatment with antisense oligonucleotides to restore SMN levels. Defects in translation were accompanied by a decrease in the number of ribosomes in motor neurons in vivo. Conclusion Our findings suggest that neuronal tissues and cells are particularly sensitive to perturbations in translation during SMA, and identify ribosome biology as an important, yet largely neglected, factor in motor neuron degeneration.
Influence of abutment height and surface roughness on in vitro retention of three luting agents. (2012)

Cement, airborne-particle abrasion, and abutment height can significantly influence retention of implant-supported crowns. Different parameters, including those specific to the patient, should be considered in the selection of a luting agent.
Induction of endoplasmic reticulum-mediated stress pathways in liver cancer cell lines after overexpression of Hepatitis B virus envelope proteins (2012)

Background. Hepatocellular carcinoma (HCC) is the 5th most common cancer worldwide. More than 90% of HCCs develop in cirrhotic livers on a background of chronic liver disease, esp. infection with the Hepatitis B virus (HBV). Although HBV has been documented to cause HCC, the exact role of HBV remains enigmatic. HBV is a hepatotropic virus with an outer lipoprotein envelope that consists of 3 proteins, the small (SHBs), the middle (MHBs) and the large surface protein (LHBs) that are also secreted as non-infectious subviral particles via the secretory pathway. The LHBs cannot build viral particles by itself, but needs SHBs or MHBs for proper propagation. A massive storage of HBV envelope proteins leads to cell stress and sustained inflammatory responses. Here we investigate if overexpression of L and S proteins in liver cancer cells can induce ER-stress and trigger the expression of genes involved in this pathway.