gebhart/patrepeval huggingface dataset:
Minimum-time manoeuvring in electric vehicles with four wheel-individual-motors (2014)

The coordinated control of vehicle actuators is gaining more and more importance as new platforms are becoming available, with chassis endowed with many different actuators that may help controlling the vehicle motion. Furthermore, wheel individual motors allow using a single system to apply both positive and negative torques at the wheels, which can be actuated independently one from the other. In electric vehicles (EVs), moreover, such a freedom in the actuation mechanisms opens the way to the combined optimisation of performance and energy consumption issues. In this paper, the problem of minimum-time manoeuvring in EVs is addressed, and the proposed strategy is compared against a benchmark, a-causal optimal solution showing that only a negligible loss of performance is experienced.
Dichroic reflection of InAs∕GaAs quantum dots (2005)

Polarization-resolved reflection measurements are performed on nearly circular InAs∕GaAs quantum dots (QDs) by means of time-resolved differential reflection spectroscopy. We observe linear polarization anisotropy of the differential absorption, revealing the dichroic character of the QD reflection. The observed magnitude of the dichroism is Θ[11¯0]∕Θ[110]=1.07. The polarization has a preferential direction orientated along the [11¯0] crystal axis, which is confirmed by polarization-resolved photoluminescence. We observe that the polarization anisotropy of the reflectivity is strongly dependent on the pump excitation density, decreasing from ρ=0.14 at low excitation to ρ=0.06 at high excitation. The pump power dependence is described by a binomial model taking into account the statistics of carrier capture into a limited number of QDs.
The M r 18,000 Subunit of the Peripheral-type Benzodiazepine Receptor Exhibits Both Benzodiazepine and Isoquinoline Carboxamide Binding Sites in the Absence of the Voltage-dependent Anion Channel or of the Adenine Nucleotide Carrier (1997)

The peripheral type benzodiazepine receptor (PBR) binds benzodiazepines such as RO5-4864 and isoquinoline carboxamide derivatives such as PK11195. This receptor includes an Mr 18,000 isoquinoline-binding subunit predominantly located in mitochondrial mem- branes. This protein has been found to copurify with two other mitochondrial proteins, namely the outer membrane voltage-dependent anion channel (VDAC), also known as mitochondrial porin, and the inner membrane adenine nucleotide carrier. In vitro reconstitution experiments suggested that the PBR was a multimeric complex in which the isoquinoline binding site was on the Mr 18,000 subunit, denoted pk18, whereas the benzodiazepine binding site required the association of this subunit with VDAC to be expressed. Untransformed cells of the yeast Saccharomyces cerevisiae are devoid of specific binding sites for isoquinolines and benzodiazepines, whereas yeast cells transformed with a pk18-expressing vector exhibit RO5-4864 and PK11195 binding sites that are pharmacologically identical to those of the PBR. To clarify the role of VDAC and of the adenine nucleotide carrier, if any, in the constitution of the benzodiazepine binding site, yeast host strains were constructed in which the corresponding genes had been knocked out. Mitochondria prepared from pk18-producing cells devoid of either VDAC or adenine nucleotide carrier exhibit both benzodiazepine and isoquinoline carboxamide binding sites with little or no change in the Kd values as compared with the wild-type background. These results rule out the contention that VDAC is indispensable for establishing the benzodiazepine binding site and are in agreement with the hypothesis that the Mr 18,000 subunit carries both the isoquinoline carboxamide and benzodiazepine binding domains.
Defining the gap between concept and seismic resolution of lowstand turbidite reservoirs (1993)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1993Defining the gap between concept and seismic resolution of lowstand turbidite reservoirsAuthors: Robert K. SucheckiG. S. PanA. TuraRobert K. SucheckiARCO Exploration and Production Technology, G. S. PanARCO Exploration and Production Technology, and A. TuraARCO Exploration and Production Technologyhttps://doi.org/10.1190/1.1822389 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1822389FiguresReferencesRelatedDetails SEG Technical Program Expanded Abstracts 1993ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 1993 Pages: 1396 publication data© 1993 Copyright © 1993 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 10 Feb 2005 CITATION INFORMATION Robert K. Suchecki, G. S. Pan, and A. Tura, (1993), "Defining the gap between concept and seismic resolution of lowstand turbidite reservoirs," SEG Technical Program Expanded Abstracts : 1358-1358. https://doi.org/10.1190/1.1822389 Plain-Language Summary PDF DownloadLoading ...
Determination of Sulfur Species in Asphaltene, Resin, and Oil Fractions of Crude Oils (1998)

Sulfur chemical species have been determined for asphaltenes, resins, and oil fractions of crude oils by using X-ray absorption near-edge structure (XANES) spectroscopy. The prevalent sulfur species are thiophene, sulfide, and sulfoxide. The asphaltene of one crude oil was known to have a very high sulfoxide content; the issue addressed here is whether the sulfoxide polar group is also dominant for sulfur in the resin and the (typically nonpolar) oil fractions of the same crude oil. Results from this study show that large sulfoxide fractions are obtained for all components of this oil. Another crude oil, lower in oxygen, also shows similar sulfur composition in all three fractions; nevertheless, the oil fractions of both crudes tend to have somewhat larger sulfide fractions.
An Integrated Boost Active Bridge Based Secondary Inductive Power Transfer Converter (2020)

Due to its inherent safety, robustness, and high efficiency, inductive power transfer (IPT) technology is highly suitable for the implementation of wireless electric vehicle (EV) chargers. In addition, IPT-based EV chargers can provide consistent vehicle-to-grid services, opportunistic charging, and in-motion/dynamic charging. However, designing such systems to adhere to applicable standards, while ensuring constant power transfer, and high efficiency, remains a challenge. For example, to meet the requirements outlined by SAE J2954, a wireless charger should tolerate a coupling change from 10% to 30% and a battery voltage variation from 280 to 420 V. A boost active bridge (BAB) converter presented in previous work was shown as a suitable solution; however, this system utilized two additional dc inductors. As such, this article presents a BAB converter, which integrates the current splitting functionality previously achieved using two dc inductors into a Double D magnetic coupler. This achieves a reduction in the magnetic volume of approximately 70%. Analysis of the proposed converter together with detailed design guidelines to maximize power transfer efficiency for a system designed to meet the SAEJ2954 specifications is also presented. Experimentally obtained efficiencies from a 7-kW prototype system showed minimal variation over the full range of loading conditions, ranging between 94.2% and 92%.
Thermal conductivity measurement and analysis of Ge-Si x Ge1−x core–shell nanowires (2019)

We measured the thermal conductivity (κ) of two different Ge-Si x Ge1−x core–shell (CS) nanowires (NWs) with diameters of 40–50 nm and found to be 11.1 and 12.0 W m−1 K−1, respectively which were close to those of the Ge NW at 300 K. We also analyzed the measurement results using the modified Debye–Callaway model. Thermal analysis indicated that the decrease in the κ of the CS NWs resulted from dislocations at the CS interfaces, and predicted that the Ge NW has a rougher surface than the CS NWs because of oxygen protrusion through the oxidation front.
Stereoselective reaction of 2-carboxythioesters-1,3-dithiane with nitroalkenes: an organocatalytic strategy for the asymmetric addition of a glyoxylate anion equivalent (2015)

An efficient organocatalytic methodology has been developed to perform the stereoselective addition of 2-carboxythioesters-1,3-dithiane to nitroalkenes. Under mild reaction conditions γ-nitro-β-aryl-α-keto esters with up to 92% ee were obtained, realizing a formal catalytic stereoselective conjugate addition of the glyoxylate anion synthon. The reaction products are versatile starting materials for further synthetic transformations; for example, the simultaneous reduction of the nitro group and removal of the dithiane ring was accomplished, allowing the preparation of a GABAB receptor agonist baclofen.
Molecular Imaging of Folate Receptor β–Positive Macrophages during Acute Lung Inflammation (2014)

Characterization of markers that identify activated macrophages could advance understanding of inflammatory lung diseases and facilitate development of novel methodologies for monitoring disease activity. We investigated whether folate receptor β (FRβ) expression could be used to identify and quantify activated macrophages in the lungs during acute inflammation induced by Escherichia coli LPS. We found that FRβ expression was markedly increased in lung macrophages at 48 hours after intratracheal LPS. In vivo molecular imaging with a fluorescent probe (cyanine 5 polyethylene glycol folate) showed that the fluorescence signal over the chest peaked at 48 hours after intratracheal LPS and was markedly attenuated after depletion of macrophages. Using flow cytometry, we identified the cells responsible for uptake of cyanine 5-conjugated folate as FRβ(+) interstitial macrophages and pulmonary monocytes, which coexpressed markers associated with an M1 proinflammatory macrophage phenotype. These findings were confirmed using a second model of acute lung inflammation generated by inducible transgenic expression of an NF-κB activator in airway epithelium. Using CC chemokine receptor 2-deficient mice, we found that FRβ(+) macrophage/monocyte recruitment was dependent on the monocyte chemotactic protein-1/CC chemokine receptor 2 pathway. Together, our results demonstrate that folate-based molecular imaging can be used as a noninvasive approach to detect classically activated monocytes/macrophages recruited to the lungs during acute inflammation.
MR angiography with gadopentetate dimeglumine-polylysine: evaluation in rabbits. (1990)

Flow in high-resistance peripheral vessels of the extremities is characterized by a short period of positive flow during systole and almost no flow during diastole. Hence, time-of-flight sequences for MR angiography in high-resistance peripheral vessels are successful only when applied in a plane perpendicular to the vessel course. When applied in a plane parallel to the vessel, the method suffers from the rapid saturation of the inflowing spins. Gadopentetate dimeglumine-polylysine is a new T1 relaxation agent with blood-pooling capability that can be used to prevent blood saturation. In the present study it produced excellent angiograms in rabbits at a dose of 0.01-0.08 mmol/kg injected IV. Time-of-flight angiograms were acquired in a 1.5-T superconducting magnet with a three-dimensional fast imaging with steady precession sequence, 20,40/10/20 degrees (TR/TE/flip angle), with an acquisition volume of 200 x 200 x 60 mm, 64 partitions, and velocity compensation in the slice-selection and frequency-encoding directions. Arteries and veins smaller than 1 mm were visualized over the entire length of the posterior limbs. If ongoing studies confirm the low toxicity of this new agent, gadopentetate dimeglumine-polylysine could offer a totally new approach to MR angiography.
ULTRA-BROADBAND NONLINEAR PHEMT MODELLING USING TOPAP'" (2004)

This paper presents the use of a nonlinear T O P A P I model to describe the behaviour of an AlGaAsAnGaAs/GaAs PHEMT device. The extracted model features excellent agreement at DC and for small-signal excitation up to 120 GHz. The model is implemented by the IMST for Agilent EDA's Series I F and A D P circuit simulators.
Clinical Characterization and Prediction of Clinical Severity of SARS-CoV-2 Infection Among US Adults Using Data From the US National COVID Cohort Collaborative (2021)

This cohort study found that COVID-19 mortality decreased over time during 2020 and that patient demographic characteristics and comorbidities were associated with higher clinical severity. The machine learning models accurately predicted ultimate clinical severity using commonly collected clinical data from the first 24 hours of a hospital admission.
FKBP12 Controls Aspartate Pathway Flux in Saccharomyces cerevisiae To Prevent Toxic Intermediate Accumulation (2004)

FKBP12 is a conserved member of the prolyl-isomerase enzyme family and serves as the intracellular receptor for FK506 that mediates immunosuppression in mammals and antimicrobial actions in fungi. To investigate the cellular functions of FKBP12 in Saccharomyces cerevisiae, we employed a high-throughput assay to identify mutations that are synthetically lethal with a mutation in the FPR1 gene, which encodes FKBP12. This screen identified a mutation in the HOM6 gene, which encodes homoserine dehydrogenase, the enzyme catalyzing the last step in conversion of aspartic acid into homoserine, the common precursor in threonine and methionine synthesis. Lethality of fpr1 hom6 double mutants was suppressed by null mutations in HOM3 or HOM2, encoding aspartokinase and aspartate beta-semialdehyde dehydrogenase, respectively, supporting the hypothesis that fpr1 hom6 double mutants are inviable because of toxic accumulation of aspartate beta-semialdehyde, the substrate of homoserine dehydrogenase. Our findings also indicate that mutation or inhibition of FKBP12 dysregulates the homoserine synthetic pathway by perturbing aspartokinase feedback inhibition by threonine. Because this pathway is conserved in fungi but not in mammals, our findings suggest a facile route to synergistic antifungal drug development via concomitant inhibition of FKBP12 and Hom6.
The balancing act of choosing nonblocking features (2013)

Design requirements of nonblocking systems.
Mode separation control of few-mode quantum dot lasers by using a multistep etalon filter (2017)

Semiconductor quantum dots can be used for an optical gain-chip in an external cavity to construct a stable two- or few-mode laser. In this study, we demonstrate wide-range mode separation control of a few-mode laser by using a multistep etalon filter. Since the precise control of multistep thickness in one etalon plate was achieved, the frequency separation of the few-mode laser can be changed by choosing the etalon position. We can change the frequency separation from 83 to 104 GHz by using this method.
An equivalent lumped circuit describing magnetized plasma and its application in FD-TD modeling (2005)

The paper describes a new approach to electromagnetic analysis of magnetized plasma using finite difference time domain (FDTD) method. An equivalent lumped circuit describing an FDTD cell filled with plasma is developed and applied in the analysis. Such a method is proved more effective than previously reported methods. The new approach is verified on a canonical example of known analytical solution.
Sonochemical One-Step Synthesis of Polymer-Capped Metal Oxide Nanocolloids: Antibacterial Activity and Cytotoxicity (2019)

Most antibacterial agents demand their action in the form of a liquid for compatibility and ease of use in biosystems, which are mainly composed of biological fluids. Controlling the colloidal stability of metal oxide nanocolloids, in parallel with minimizing the effect of using a large amount of surfactant on their biocidal activity and cytotoxicity, remains a challenge. Here, we address the stability of nanocolloids of ZnO and CuO in the presence of polymer surfactants and the influence of the surface capping on their antibacterial activity and cytotoxicity. The metal oxide nanoparticles (NPs) were synthesized sonochemically in a single step and tested against both Gram-negative <i>Escherichia coli</i> and Gram-positive <i>Staphylococcus aureus</i> to validate their biocidal efficacy. Cytotoxicity studies were performed on human alveolar epithelial cells. Polyethylene glycol- and polyvinyl alcohol-capped NPs are observed to show the minimum cytotoxicity whereas polyethylene imine-capped and pristine metal oxide NPs are toxic to the mammalian cells. The cytotoxic and antibacterial properties of the stable nanocolloids displayed an inverse relation, highlighting the role and significance of the polymer capping. The nontoxic biocidal nanocolloids showed an effective antibacterial efficacy of 99.9% in 2 h.
The Lipid Products of Phosphoinositide 3-Kinase Increase Cell Motility through Protein Kinase C (1997)

Phosphoinositide 3-kinase has been implicated as an activator of cell motility in a variety of recent studies, yet the role of its lipid product, phosphatidylinositol 1,4,5-trisphosphate (PtdIns-3,4,5-P3), has yet to be elucidated. In this study, three independent preparations of PtdIns-3,4,5-P3 were found to increase the motility of NIH 3T3 cells when examined utilizing a microchemotaxis chamber. Dipalmitoyl L-alpha-phosphatidyl-D-myo-inositol 3,4,5-triphosphate (Di-C16-PtdIns-3,4,5-P3) also produced actin reorganization and membrane ruffling. Cells pretreated with 12-O-tetradecanoylphorbol-13-acetate to cause down-regulation of protein kinase C (PKC) exhibited complete inhibition of cell motility induced by Di-C16-PtdIns-3,4,5-P3. These results are consistent with previous observations that PtdIns-3,4,5-P3 activates Ca2+-independent PKC isoforms in vitro and in vivo and provide the first demonstration of an in vivo role for the lipid products of the phosphoinositide 3-kinase. PtdIns-3,4,5-P3 appears to directly initiate cellular motility via activation of a PKC family member.
Synchronous Spin-Exchange Optical Pumping (2015)

We demonstrate a new approach to precision NMR with hyperpolarized gases designed to mitigate NMR shifts due to the alkali spin-exchange field. The NMR bias field is implemented as a sequence of alkali (Rb) 2π pulses, allowing the Rb polarization to be optically pumped transverse to the bias field. When the Rb polarization is modulated at the noble-gas (Xe) NMR resonance, spin-exchange collisions buildup a precessing transverse Xe polarization. We study and mitigate novel NMR broadening effects due to the oscillating spin-exchange field. Spin-exchange frequency shifts are suppressed 2500×, and Rb magnetometer gain measurements project photon shot-noise limited NMR frequency uncertainties below 10 nHz/sqrt[Hz].
Scientific Session of the Physical Sciences Division of the Russian Academy of Sciences "Methods of wave-based physics in neuroscience problems and applications" (31 October 2007) (2008)

A scientific session of the Physical Sciences Division of the Russian Academy of Sciences (RAS) was held under the title Methods of wave-based physics in neuroscience problems and on October 31, 2007 in the conference hall of the P N Lebedev Physical Institute, RAS. The following reports were presented at the session: (1) Nekorkin V I (Institute of Applied Physics, RAS, Nizhny Novgorod) oscillations and waves in neurodynamics; (2) Bezruchko B P (Department of Nano- and Biomedical Technologies, Saratov State University, Saratov), Ponomarenko V I, Prokhorov M D, Smirnov D A (Saratov Branch of the Institute of Radioengineering and Electronics, RAS, Saratov), Tass P A (Juelich Research Center, Institute of Neuroscience and Biophysics 3-Medicine, Juelich, Germany) nonlinear oscillatory systems and diagnostics of coupling between them using chaotic time series analysis: applications in neurophysiology. An abridged version of these reports is given below. • Nonlinear oscillations and waves in neurodynamics, V I Nekorkin Physics-Uspekhi, 2008, Volume 51, Number 3, Pages 295–304 • Modeling nonlinear oscillatory systems and diagnostics of coupling between them using chaotic time series analysis: applications in neurophysiology, B P Bezruchko, V I Ponomarenko, M D Prokhorov, D A Smirnov and P A Tass Physics-Uspekhi, 2008, Volume 51, Number 3, Pages 304–310
Erratum: Quantitative preparation of allyl telechelic polyisobutylene under reflux conditions (2017)

This article corrects: Quantitative Preparation of Allyl Telechelic Polyisobutylene under Reflux Conditions Volume 55, Issue 10, 1784-1789, Article first published online: 17 March 2017 Published in the Journal of Polymer Science Part A: Polymer Chemistry 2017, 55, 1784–1789 (DOI: 10.1002/pola.28529) Page 1786 Page 1788 We apologize for any inconvenience or confusion this error may have caused.
Self‐Assembled Monolayer Dielectrics for Low‐Voltage Carbon Nanotube Transistors with Controlled Network Density (2016)

Control of the density and uniformity of semiconducting single‐walled carbon nanotube (SWNT) networks is crucial for their application in field‐effect transistors (FETs) and critically depends on the surface of the substrate. Here, the concept of self‐assembled monolayer (SAM) dielectrics on aluminum/aluminum oxide bottom‐gate electrodes is used to create low‐voltage (&lt;2 V) FETs with SWNT networks. The influence of different phosphonic acid SAMs is investigated on the final network density and charge transport properties of solution‐deposited, polyfluorene‐sorted large‐diameter semiconducting SWNT. Positively charged, imidazolium‐terminated SAMs and those with high dipole moments result in the highest network densities for both spin‐coating and dip‐coating. However, FETs with moderate SWNT coverage on SAMs with long alkyl chains and amine or hydroxyl end‐groups yield the best combination of high on‐conductances and high hole mobilities (up to 20 cm 2 V −1 s −1 ) with low trap densities and short critical channel lengths (&lt;2 μm). These parameters are suitable for future short channel, flexible, and high‐frequency FETs.
In defense of hyper-logicist AI (1991)

We argue for hyper-logicism, the view, hitherto unarticulated, that AI can succeed in creating a genuine robot agent by building a symbol system of the appropriate sort which has no sub-symbolic interaction whatsoever with the external world.