gebhart/patrepeval huggingface dataset:
Large eddy simulation of turbulent front propagation with dynamic subgrid models (1997)

Dynamic models for large eddy simulation of the G-equation of turbulent premixed combustion are proposed and tested in forced homogeneous isotropic turbulence. The basic idea is to represent the “filtered propagation term” as “propagation of the filtered front at higher speed,” where the enhanced filtered-front speed is modeled. The validity of the linear relation between the turbulent flame speed and turbulence intensity is examined through the use of filtered direct numerical simulation (DNS) data. These tests show a range of scalings from linear to cubic depending on the ratio of the turbulence intensity to flame speed as well as the filter type. Filtered DNS data are also used to evaluate the proposed dynamic model for the turbulent flame speed. It is found that the model is very sensitive to the manner in which the subgrid-scale kinetic energy is estimated. It is also found that accurate predictions of the turbulent flame speed can be obtained provided a good estimate of the subgrid-scale kinetic energy is used. Simulations are also run using the new dynamic model and the results are shown to compare well with DNS results.
Bulky Alkylphosphines with Neopentyl Substituents as Ligands in the Amination of Aryl Bromides and Chlorides (2006)

Di(tert-butyl)neopentylphosphine (DTBNpP) in combination with palladium sources provided catalysts with comparable or better activity for the Hartwig-Buchwald amination of aryl bromides than tri(tert-butyl)phosphine (TTBP) under mild conditions. DTBNpP also provided effective catalysts for amination reactions of aryl chlorides at elevated temperatures. Further replacement of tert-butyl groups with neopentyl substituents resulted in less effective ligands for amination reactions. Computationally derived cone angles showed that replacement of a tert-butyl group with a neopentyl group significantly increased the cone angle of the phosphine. The larger cone angle of DTBNpP than TTBP appears to correlate with the higher activity of catalysts derived from DTBNpP in the amination of aryl bromides. TTBP is a stronger electron donor than DTBNpP, which may explain the higher activity for TTBP-derived catalysts toward aryl chlorides.
Serum Levels of Adipocyte Fatty Acid-Binding Protein Are Associated with the Severity of Coronary Artery Disease in Chinese Women (2011)

Serum A-FABP is closely associated with the presence and severity of CAD in Chinese women.
A new TaqMan method for the reliable diagnosis of Ehrlichia spp. in canine whole blood (2018)

It was evident that both amplification methods were equally suited for diagnosing canine ehrlichiosis and while the PCRun® clearly amplified all clinically relevant Ehrlichia species known to infect dogs and humans, the TaqMan method was more specific for E. canis and E. minasensis. This work demonstrates that despite good analytical sensitivities and specificities for Ehrlichia spp. neither method could fully account for the clinical diagnosis of thrombocytopenia.
Design of Wireless Control System for Smart Home Based on Android (2018)

On the basis of summarizing the previous semi intelligent home control schemes that only use wireless sensor network technology and Android operation system technology, this paper puts forward a set of innovative intelligent home control scheme. This paper studies a set of intelligent home control system consisting of Android mobile terminal, GSM mobile communication system, sensor detection network, device response system, human-machine speech interaction system and atomizing glass curtain system, and analyzes the application prospect of this system. The system realizes the automatic response function of home appliances based on sensor network detection signal, the real-time control and state monitoring function of Android mobile terminal to home devices, and the control function of home devices through human-machine interaction system.
In-ear photoplethysmography for central pulse waveform analysis in non-invasive hemodynamic monitoring (2017)

In recent years, the analysis of the photoplethys-mographic (PPG) pulse waveforms has attracted much research focus. However, the considered signals are primarily recorded at the fingertips, which suffer from reduced peripheral perfusion in situations like hypovolemia or sepsis, rendering waveform analysis infeasible. The ear canal is not affected by cardiovascular centralization and could thus prove to be an ideal alternate measurement site for pulse waveform analysis. Therefore, we developed a novel system that allows for highly accurate photoplethysmographic measurements in the ear canal. We conducted a measurement study in order to assess the signal-to-noise ratio of our developed system Hereby, we achieved a mean SNR of 40.65 dB. Hence, we could show that our system allows for highly accurate PPG recordings in the ear canal facilitating sophisticated pulse waveform analysis. Furthermore, we demonstrated that the pulse decomposition analysis is also applicable to in-ear PPG recordings.
Cln3-Associated Kinase Activity in Saccharomyces cerevisiae Is Regulated by the Mating Factor Pathway (1998)

The Saccharomyces cerevisiae cell cycle is arrested in G1 phase by the mating factor pathway. Genetic evidence has suggested that the G1 cyclins Cln1, Cln2, and Cln3 are targets of this pathway whose inhibition results in G1 arrest. Inhibition of Cln1- and Cln2-associated kinase activity by the mating factor pathway acting through Far1 has been described. Here we report that Cln3-associated kinase activity is inhibited by mating factor treatment, with dose response and timing consistent with involvement in cell cycle arrest. No regulation of Cln3-associated kinase was observed in a fus3 kss1 strain deficient in mating factor pathway mitogen-activated protein (MAP) kinases. Inhibition occurs mainly at the level of specific activity of Cln3-Cdc28 complexes. Inhibition of the C-terminally truncated Cln3-1-associated kinase is not observed; such truncations were previously identified genetically as causing resistance to mating factor-induced cell cycle arrest. Regulation of Cln3-associated kinase specific activity by mating factor treatment requires Far1. Overexpression of Far1 restores inhibition of C-terminally truncated Cln3-1-associated kinase activity. G2/M-arrested cells are unable to regulate Cln3-associated kinase, possibly because of cell cycle regulation of Far1 abundance. Inhibition of Cln3-associated kinase activity by the mating factor pathway may allow this pathway to block the earliest step in normal cell cycle initiation, since Cln3 functions as the most upstream G1-acting cyclin, activating transcription of the G1 cyclins CLN1 and CLN2 as well as of the S-phase cyclins CLB5 and CLB6.
Electromagnetic Interference of Power Converter with Random Modulation on the Power Line Communication System (2021)

Random Pulse Width Modulation (RPWM) allows controlling the switching signal of power converters in order to reduce the harmonic peaks by spreading the noise spectrum. Currently, many manufacturers of power converters are deploying this modulation scheme in order to comply with Electromagnetic Compatibility (EMC) test requirements. However, when the converters coexist with Power Line Communication (PLC) systems, such as in Smart Grid (SG) applications, resorting to RPWM needs further investigations since it potentially affects the communication channel by increasing the bit error rate. This possible detrimental effect is investigated in this work, by considering a PLC system for automatic meter reading (AMR) implemented in a SG application. To this end, the model of a complete PLC system is implemented in SIMULINK, and Quadrature Phase Shift Keying (QPSK) modulation is used to model the PLC modems in the communication channel. Results show that, even if the deployment of RPWM techniques may lead to an appreciable reduction/spreading of the peaks in the noise spectrum, it may also lead to an increase of the bit error rate on the PLC system.
ChemInform Abstract: A Novel Synthesis of 1,2‐Diaryl‐2,2‐Difluoroethanones. (1995)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Comparison of a competitive combined reverse transcription-PCR assay with a branched-DNA assay for hepatitis C virus RNA quantitation (1996)

We have developed a sensitive and reproducible one-step competitive reverse transcriptase (RT) PCR assay, which allows hepatitis C virus (HCV) RNA quantitation in plasma over a broad range of values. The RNA samples and a constant amount of an internal standard were reverse transcribed and coamplified with the same primers in the same tube. A standard curve was obtained from an additional series of tubes containing both the internal standard and known amounts of a wild-type HCV RNA transcript, thus eliminating the need for titrating samples with the competitor. Eighty-eight anti-HCV-positive samples were tested by RT-PCR and a branched-DNA (bDNA) assay which has a detection limit of 3.5 x 10(5) copies per ml. Fifty-five samples were quantifiable by both methods (correlation coefficient, 0.72), the ranges of values found by the RT-PCR and bDNA assays being, respectively, 0.127 x 10(6) to 18.4 x 10(6) and 0.44 x10(6) to 38 x 10(6) copies per ml. Six samples that had indeterminate values by the bDNA assay had RT-PCR values between 0.37 x 10(5) and 9.6 x 10(5) copies per ml. Twenty-two samples that had values below the cutoff value by the bDNA assay had RT-PCR values between 2.5 x 10(3) and 10.4 x 10(5) (18 less than and 4 more than the limit of 3.5 x 10(5) copies per ml). The remaining five samples were negative by both assays. The level of RT-PCR interassay reproducibility was high (correlation coefficient between duplicate values, 0.94). Our method, with a detection limit of 2,500 copies per ml, was markedly more sensitive than the bDNA assay. This method is convenient for following up patients with low viremia, a common situation with alpha interferon treatment.
A Summary of Results of a Membership Survey of the American Industrial Hygiene Association (1974)

Abstract Profiles of AIHA membership characteristics obtained from a March, 1974 questionnaire study, in which 49% of 1800 United States members responded, are presented. Results show median ranges for age (46 to 50 years), experience (16-20 years) and annual salary ($20–22,000). Ninety-six percent are college graduates with one-third majoring in chemistry and one-third in engineering. Fifty-eight percent hold graduate degrees. Two-thirds belong to an AIHA local Section. Seventy-six percent of the respondents are industrial hygienists and 45% are employed by industry, 26% by government agencies. Forty-two percent of the industrial hygienists are certified by the American Board of Industrial Hygiene.
Phase-Imaging with a Sharpened Multi-Walled Carbon Nanotube AFM Tip: Investigation of Low-k Dielectric Polymer Hybrids (2005)

Phase shift tapping mode scanning force microscopy (TMSFM) has evolved into a very powerful technique for the nanoscale surface characterization of compositional variations in heterogeneous samples. Phase shift signal measures the difference between the phase angle of the excitation signal and the phase angle of the cantilever response. The signal correlates to the tip-sample inelastic interactions, identifying the different chemical and/or physical property of surfaces. In general, the resolution and quality of scanning probe microscopic images are highly dependent on the size of the scanning probe tip. In improving AFM tip technology, we recently developed a technique for sharpening the tip of a multi-walled carbon nanotube (CNT) AFM tip, reducing the radius of curvature of the CNT tip to less than 5 nm while still maintaining the inherent stability of multi-walled CNT tips. Herein we report the use of sharpened (CNT) AFM tips for phase-imaging of polymer hybrids, a precursor for generating nanoporous low-k dielectrics for on-chip interconnect applications. Using sharpened CNT tips, we obtained phase-contrast images having domains less than 10 nm. In contrast, conventional Si tips and unsharpened CNT tips (radius greater than 15 nm) were not able to resolve the nanoscale domains in the polymer hybrid films. C1early, the size of the CNT tip contributes significantly to the resolution of phase-contrast imaging. In addition, a study on the nonlinear tapping dynamics of the multi-walled CNT tip indicates that the multi-walled CNT tip is immune to conventional imaging instabilities related to the coexistence of attractive and repulsive tapping regimes. This factor may also contribute to the phase-contrast image quality of multi-walled CNT AFM tips. This presentation will also offer data in support of the stability of the CNT tip for phase shift TMSFM.
Squeezing in fibers with optical pulses (1991)

A novel method of squeezing with optical pulses in a fiber ring reflector is demonstrated experimentally. Squeezing of greater than 5 ± 0.3 dB has been observed. The pump is separated from the squeezed radiation with a fiber ring reflector and can be reused, in principle fully, as the local oscillator. The detection is at low frequencies (35–85 kHz) and is unaffected by guided-acoustic-wave Brillouin scattering.
Keynote 1: Democratized Wearable Electronics Using DIY Assembly of Paper and High Performance CMOS Electronics (2021)

Summary form only given, as follows. The complete presentation was not made available for publication as part of the conference proceedings. We always hear about smart cities, but rarely, we hear about smart villages although nearly half of the world’s population live in rural areas. While today’s most advanced technologies are geared toward a more digital future, precision healthcare, enhanced convenience and safety – but they are mostly for those who can afford them easily and most probably they already live a more comfortable life. It might be alarming that in addition to gross income inequality, there is an increasing rise of gross technological inequality. Therefore, by developing accessible (affordable and simple) electronic technologies with sustainable materials and processes and for sustainable applications, we can assist those billions to augment the quality of their life. Therefore, we are singularly focused on developing and deploying democratized wearable electronics. Electronics which are carefully designed and optimally crafted using non-functionalized sustainable household materials, environmentally benign processes and assembled through Do-ItYourself (DIY) integration strategies. Our objective is to develop electronics which are simple to learn and easy to use. Therefore, we are making them interactive thus anyone can use them – anyone from any age group without any language or financial barrier. We use a minimalist approach in the context of using fully flexible CMOS electronics for data and cost management. A few applications will be shown focusing on paper skin, paper watch, wearable stethoscope, and oddly enough how such low-cost technology can be used to fight against medication related overdose or addiction.
Polymerization of alkenes with a post‐metallocene catalyst containing a titanium complex with an oxyquinolinyl ligand (2017)

ABSTRACT Polymerization reactions of ethylene, propylene, higher 1‐alkenes (1‐hexene, 1‐octene, 1‐decene, vinyl cyclohexane, 3‐methyl‐1‐butene), and copolymerization reactions of ethylene with 1‐octene with a post‐metallocene catalyst containing an oxyquinolinyl complex of Ti and a combination of Al(C 2 H 5 ) 2 Cl and Mg(C 4 H 9 ) 2 as a cocatalyst were studied. The catalyst is highly active and, judging by the broad molecular weight distribution of the polymers, contains several active center populations. The active centers differ not only in their kinetic parameters but also in stereospecificity. Most of the active centers produce essentially atactic polypropylene but a small fraction of the centers produces polypropylene of moderate isotacticity degree. © 2017 Wiley Periodicals, Inc. J. Polym. Sci., Part A: Polym. Chem. 2017 , 55 , 1844–1854
Electrically Powered Locomotion of Dual-Nature Colloid-Hedgehog and Colloid-Umbilic Topological and Elastic Dipoles in Liquid Crystals (2022)

Colloidal particles in liquid crystals tend to induce topological defects and distortions of the molecular alignment within the surrounding anisotropic host medium, which results in elasticity-mediated interactions not accessible to their counterparts within isotropic fluid hosts. Such particle-induced coronae of perturbed nematic order are highly responsive to external electric fields, even when the uniformly aligned host medium away from particles exhibits no response to fields below the realignment threshold. Here we harness the nonreciprocal nature of these facile electric responses to demonstrate colloidal locomotion. Oscillations of the electric field prompt repetitive deformations of the corona of dipolar elastic distortions around the colloidal inclusions, which upon appropriately designed electric driving synchronize the displacement directions. We observe the colloid-hedgehog dipole accompanied by an umbilical defect in the tilt directionality field (<b>c</b>-field), along with the texture of elastic distortions that evolves with a change in the applied voltage. The temporal out-of-equilibrium evolution of the director and <b>c</b>-field distortions around particles when the voltage is turned on and off is not invariant upon reversal of time, prompting lateral translations and interactions that markedly differ from those accessible to these colloids under equilibrium conditions. Our findings may lead to both technological and fundamental science applications of nematic colloids as both model reconfigurable colloidal systems and as mesostructured materials with predesigned temporal evolution of structure and composition.
Pay As You Spend: The Social Justification (2013)

The trouble with asking "is taxation fair?" is not so much that the question is difficult to answer, as that it is the wrong question to ask.KeywordsSocial JustificationDirect TaxationWrong QuestionCommunist ManifestoActual SpendingThese keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
Self-Assembled Graphene/Carbon Nanotube Hybrid Films for Supercapacitors (2009)

Stable aqueous dispersions of polymer-modified graphene sheets were prepared via in situ reduction of exfoliated graphite oxides in the presence of cationic poly(ethyleneimine) (PEI). The resultant water-soluble PEI-modified graphene sheets were then used for sequential self-assembly with acid-oxidized multiwalled carbon nanotubes, forming hybrid carbon films. These hybrid films were demonstrated to possess an interconnected network of carbon structures with well-defined nanopores to be promising for supercapacitor electrodes, exhibiting a nearly rectangular cyclic voltammogram even at an exceedingly high scan rate of 1 V/s with an average specific capacitance of 120 F/g.
Intercessory Objects within Channels (1995)

The management of interactions between components of a distributed system necessitates mechanisms for monitoring activity, and influencing behaviour, within channels binding those components. A low-level mechanism, based on intercessory objects, is considered here as a foundation for the construction of higher level management functions.
Error Analysis in Electron Beam Lithography System -Thermal Effects on Positioning Accuracy- (1992)

Thermal effects on positioning accuracy in an electron beam lithography system have been evaluated. In order to make 5X reticles for 0.3-µm ULSIs, positioning accuracy as small as 0.06 µm is required. Thermal effects are significant problems in achieving highly accurate reticle judging from positioning error analysis. In this study, internal thermal effects were investigated; these were (1) heating by electron beam illumination and (2) stage friction with step-and-repeat movement. As a result, the positioning error due to electron beam illumination is negligibly small compared with 0.06 µm and the stage temperature fluctuation must be controlled within 0.07°C to maintain a positioning error within 0.06 µm. Furthermore, internal thermal effects of the system could be fatal in next-generation electron beam lithography systems without improvement of materials and systems.
Placental Transfer of Benzo(a)pyrene and its Hydrophilic Metabolites in the Guinea Pig (1986)

The placental transfer of benzo(a)pyrene, (BP) and its hydrophilic metabolites, (mBP) have been studied in the guinea pig by a placental perfusion technique during constant infusion of BP to the dam. In connection with stop of infusion, blood samples were withdrawn from intact foetuses remaining in utero via the umbilical vein. The placental transfer rate of BP is faster compared with that of mBP when heparinized blood from adult guinea pigs is used as perfusion media. Transfer rate was essentially the same when heparinized blood from foetuses was used instead of blood from adults. With a dextran solution as perfusion media no transfer of BP or mBP could be seen. With albumin solutions of different concentrations only negligible amounts of BP or mBP penetrated the placenta. The concentration of BP in perfusion plasma was significantly higher than that in the foetal plasma, contrary to the concentration of mBP which is significantly lower in perfusion plasma than in foetal plasma. It is concluded that in late gestation the foetal exposure for mBP is due more to the foetal metabolic conversion of BP than to the foetal exposure of mBP produced by maternal enzymatic activity.
Spin-wave spectroscopy of the Dzyaloshinskii-Moriya interaction in room-temperature chiral magnets hosting skyrmions (2017)

Propagation character of spin wave was investigated for chiral magnets FeGe and Co-Zn-Mn alloys, which can host magnetic skyrmions near room temperature. On the basis of the frequency shift between counterpropagating spin waves, the magnitude and sign of Dzyaloshinskii-Moriya (DM) interaction were directly evaluated. The obtained magnetic parameters quantitatively account for the size and helicity of skyrmions as well as their materials variation, proving that the DM interaction plays a decisive role in the skyrmion formation in this class of room-temperature chiral magnets. The propagating spin-wave spectroscopy can thus be an efficient tool to study DM interaction in bulk single-phase compounds. Our results also demonstrate a function of spin-wave diode based on chiral crystal structures at room temperature.