gebhart/patrepeval huggingface dataset:
A Ka-band monolithic quasi-optic amplifier (2002)

Recent advances in the development of a Ka-band quasi-optic amplifier are reported. The amplifier consists of a two-dimensional array of PHEMT power amplifiers, each of which is coupled to individual input and output slot antennas. The array of 112 amplifiers (49 mm total gate periphery) is organized into pairs operating in push-pull between a 7/spl times/8 array of input slots and an 8/spl times/8 array of orthogonal output slots. The total chip size is 12.8 mm by 13.4 mm and has a thickness of 75 /spl mu/m. It is fabricated with standard MMIC processing techniques. The amplifier provided gain from 37.5 GHz to 39.5 GHz with a peak gain approaching 9 dB at 38.6 GHz. The maximum measured output power is 29 dBm.
Signal processing techniques for optical fiber sensors using white light interferometry (1993)

Conventional fiber optic interferometric sensors employing a monochromatic source prove to be inadequate for applications requiring absolute, real-time value of magnitude and direction of the applied perturbation. This limitation can be overcome by using a broadband light source to extract unambiguous information from the sensor in the wavelength domain. Several variations in the signal processing techniques for white light interferometry are discussed and compared in terms of resolution, bandwidth and cost. A detailed analysis is made of the principle of operation and basic features of the commercially available absolute sensing system. This compact system is self calibrating, has a 100 micro-strain Ole) strain and 2°C temperature resolution and is ideal for applications in environments where the parameter to be measured is static or quasi-static. High finesse Fabry-Perot cavities are employed to obtain almost an order of magnitude sensitivity improvement over conventional low finesse cavities. The principle of white light interferometry is extended to absolute axial stain and temperature sensing in two-mode, elliptical-core fibers. Other novel applications, such as to operation of photo induced refractive index gratings and fiber characterization are proposed.
The mechanism of electrophoretic deposition (1965)

Abstract The conditions under which electrophoretic deposits can be formed from suspensions of a number of metallic and non‐metallic materials have been established, and the zeta‐potentials of the materials have been measured. Calculated values of the minimum field‐strength required to overcome the repulsion between the particles show agreement with the observed values for some materials. For other materials, particularly metallic powders, it is not possible to apply sufficient force by the field to overcome this repulsion. Addition of a suitable amount of certain electrolytes, for example 10 −3 M ‐aluminium chloride, results in very adherent deposits. Under these conditions the electrolytic reaction produces a binder, such as a polymeric hydroxide, at the cathode, so that the adhesion of the deposit no longer depends only on the London‐van der Waals attractive forces between the original particles.
Components of the female sex pheromone of the yellow stem borer, <i>Scirpophaga incertulas</i> (1985)

Abstract Ovipositor washings and volatiles from virgin female Scirpophaga incertulas (Walker) (Lepidoptera: Pyralidae) were analysed by gas chromatography (GC) linked to electroantennography (EAG). Two EAG responses were observed at retention times consistent with those of monounsaturated 16‐carbon aldehydes and monounsaturated 16‐carbon alcohols. Analysis of ovipositor washings on high‐resolution, capillary GC columns showed peaks which cochromatographed with ( Z )‐11‐hexadecenal, ( Z )‐9‐hexadecenal, ( Z )‐11‐hexadecen‐1‐ol and hexadecanal. EAG responses of male S. incertulas to synthetic hexadecenal isomers were greatest for the ( Z )‐11 and ( E )‐11 isomers. Field tests in the Philippines showed that traps baited with a mixture of (Z)‐11‐hexadecenal and ( Z )‐9‐hexadecenal in the naturally occurring 3:1 ratio caught significantly more male S. incertulas moths than those baited with a virgin female moth. Addition of ( Z )‐11‐hexadecen‐1‐ol to this mixture reduced trap catches. RÉSUMÉ Elements de phéromone sexuelle femelle de Scirpophaga incertulas Des produits provenant du lavage d l'ovipositeur et des substances volatiles de femelles vierges de S. incertulas Walker (Lep.: Pyralidae) ont été examinées en chromatographic en phase gazeuse (GC) avecélectroantennogrammesimultané (EAG). Deux réponses EAG ont été enregistrées à des temps de rétention correspondant à ceux des aldéhydes monoinsaturés 16 carbones et des alcools monoinsaturés lócarbones. L'analyse des produits provenant du lavage de l'ovipositeur en colonnes GC capillaires à haute résolution a donné des pics correspondant aux ( Z )‐11‐hexadécenal, ( Z )‐9‐hexadécenal, ( Z )‐11‐hexadecen‐1‐ol et à l'hexadecanal. Les réponses EAG de ma&#x030c;les de S. incertulas aux isomères synthétiques d'hexadécenal étaient plus intenses pour les isomères ( Z )‐11 et ( E )‐11. Des essais en champ aux Philippines ont montré que les pièges contenant un mélange de ( Z )‐11‐hexaděcenal et de ( Z )‐9‐hexadé‐cenal dans le rapport natural 3/1 capturaient plus de ma&#x030c;les de S. incertulas que ceux contenant une femelle vierge. L'addition au mélange de ( Z )‐11‐hexadecen‐1‐ol réduit les captures.
The syntheses of tricyclic analogues of O6-methylguanine (2003)

The syntheses of the novel pyrrolo[2,3-d]pyrimidine-based heterocycles as tricyclic analogues of O6-methylguanine are described. Compound 5 is a weak inhibitor of human O6-alkylguanine DNA alkyltransferase.
Invasion of vascular cells <i>in vitro</i> by <i>Porphyromonas endodontalis</i> (2002)

Certain microorganisms associated with endodontic infections are invasive. If bacterial invasion of the vasculature contributes to the pathogenesis of cardiovascular disease, then microorganisms in the pulp chamber represent potential pathogens.
Platelet glycolytic flux increases stimulated by ultraviolet‐induced stress is not the direct cause of platelet morphology and activation changes: possible implications for the role of glucose in platelet storage (2005)

Increased glycolytic flux is not a direct cause for PLT morphology change and spontaneous activation during storage lesion development. Reduction of glucose utilization may increase PLT loss during storage.
Rhodium‐Catalyzed Enantioselective Silylation of Cyclopropyl C−H Bonds (2016)

Hydrosilyl ethers, generated in situ by the dehydrogenative silylation of cyclopropylmethanols with diethylsilane, undergo asymmetric, intramolecular silylation of cyclopropyl C-H bonds in high yields and with high enantiomeric excesses in the presence of a rhodium catalyst derived from a rhodium precursor and the bisphosphine (S)-DTBM-SEGPHOS. The resulting enantioenriched oxasilolanes are suitable substrates for the Tamao-Fleming oxidation to form cyclopropanols with conservation of the ee value from the C-H silylation. Preliminary mechanistic data suggest that C-H cleavage is likely to be the turnover-limiting and enantioselectivity-determining step.
Perfusion territory imaging of intracranial branching arteries – optimization of continuous artery‐selective spin labeling (CASSL) (2010)

Continuous artery-selective spin labeling (CASSL) is based on a standard continuous arterial spin labeling sequence with adiabatic flow-driven inversion and an amplitude-modulated control experiment, and has been proposed recently as a new method for the noninvasive flow territory mapping of cerebral arteries. Spatial selectivity is achieved by the rotation of a tilted labeling plane about the axis of a selected artery, which restricts the tagging pulses to the same spatial position for the vessel of interest but, for any other adjacent and parallel artery, the locus of resonance will vary in time and saturates the blood at a certain distance to the labeling focus. In numerical simulations and in a volunteer study, the key labeling parameters of CASSL were investigated with the goal of increasing the spatial selectivity whilst maintaining sufficient labeling efficiency, in order to selectively label the blood in small intracranial arteries distal to the circle of Willis. The optimized labeling parameters were employed in vivo and adapted to different vascular geometries. The labeling of small intracranial branches of the anterior, middle and posterior cerebral arteries in close vicinity to other vessels yielded clearly delineated perfusion territories and demonstrated the method's capability for highly selective perfusion measurements.
The effects of kinesio™ taping on proprioception at the ankle. (2004)

Ankle injury < 6 months prior to testing, significant ligament laxity as determined through clinical evaluation by an ATC, or any severe foot abnormality. Experiment utilized a single group, pretest and posttest. Plantar flexion and inversion with 20° of plantar flexion reproduction of joint position sense (RJPS) was determined using an ankle RJPS apparatus. Subjects were barefooted, blindfolded, and equipped with headphones playing white noise to eliminate auditory cues. Subjects had five trials in both plantar flexion and inversion with 20° plantar flexion before and after application of the Kinesio™ tape to the anterior/lateral portion of the ankle. Constant error and absolute error were determined from the difference between the target angle and the trial angle produced by the subject. The treatment group (Kinesio™ taped subjects) showed no change in constant and absolute error for ankle RJPS in plantar flexion and 20° of plantar flexion with inversion when compared to the untaped results using the same motions. The application of Kinesio™ tape does not appear to enhance proprioception (in terms of RJPS) in healthy individuals as determined by our measures of RJPS at the ankle in the motions of plantar flexion and 20° of plantar flexion with inversion. Key PointsProprioception researchEvaluation of a new taping methodAugmentation of sensory feedbackRehabilitation technique.
<title>Holographic recording of microscopic Bragg reflectors for optical data storage</title> (1998)

We report on the holographic recording and read-out of microscopic Bragg-reflectors in DuPont Omnidex HRF-800 photopolymer films with 20 micrometer thickness. A Helium-Neon laser operating at (lambda) equals 632.8 nm was employed as light source. Lenses from Digital Versatile Disk (DVD) pick- ups were used to realize a beam waist with submicron diameter. The local distribution of the diffraction efficiency was investigated by applying a confocal scanning microscope setup. Holograms with a 1/e<SUP>2</SUP>-radius of 1.8 micrometer and 12 micrometer depth (FWHM) have been recorded. Due to shrinkage, the maximum diffraction efficiency was 0.4%, which can be improved by adjusting the read-out wavelength.
Plant growth-promoting bacteria as inoculants in agricultural soils (2015)

Plant-microbe interactions in the rhizosphere are the determinants of plant health, productivity and soil fertility. Plant growth-promoting bacteria (PGPB) are bacteria that can enhance plant growth and protect plants from disease and abiotic stresses through a wide variety of mechanisms; those that establish close associations with plants, such as the endophytes, could be more successful in plant growth promotion. Several important bacterial characteristics, such as biological nitrogen fixation, phosphate solubilization, ACC deaminase activity, and production of siderophores and phytohormones, can be assessed as plant growth promotion (PGP) traits. Bacterial inoculants can contribute to increase agronomic efficiency by reducing production costs and environmental pollution, once the use of chemical fertilizers can be reduced or eliminated if the inoculants are efficient. For bacterial inoculants to obtain success in improving plant growth and productivity, several processes involved can influence the efficiency of inoculation, as for example the exudation by plant roots, the bacterial colonization in the roots, and soil health. This review presents an overview of the importance of soil-plant-microbe interactions to the development of efficient inoculants, once PGPB are extensively studied microorganisms, representing a very diverse group of easily accessible beneficial bacteria.
A nonfullerene acceptor with a 1000 nm absorption edge enables ternary organic solar cells with improved optical and morphological properties and efficiencies over 15% (2019)

The PM7:ITC-2Cl:IXIC-4Cl-based ternary device achieved an excellent PCE of 15.37% with a energy loss of 0.42 eV.
Mining for analogous tuples from an entity-relation graph (2013)

The ability to recognize analogies is an important factor that is closely related to human intelligence. Verbal analogies have been used for evaluating both examinees at university entrance exams as well as algorithms for measuring relational similarity. However, relational similarity measures proposed so far are confined to measuring the similarity between pairs of words. Unfortunately, such pairwise approaches ignore the rich relational structure that exists in real-world knowledge bases containing millions of entities and semantic relations. We propose a method to efficiently identify analogous entity tuples from a given entity-relation graph.

First, we present an efficient approach for extracting potential analogous tuples from a given entity-relation graph. Second, to measure the structural similarity between two tuples, we propose two types of kernel functions: vertex-feature kernels, and edge-feature kernels. Moreover, we combine those kernels to construct composite kernels that simultaneously consider both vertex and edge features. Experimental results show that our proposed method accurately identifies analogous tuples and significantly outperforms a state-of-the-art pairwise relational similarity measure, extended to tuples.
Local stability of FAST TCP (2004)

The stability properties of FAST TCP is studied based on a discrete-time model. We prove that FAST TCP is locally asymptotically stable for an arbitrary network in the absence of feedback delay. When feedback delay is present, we derive a sufficient condition for local asymptotic stability for the case of a single link. The condition suggests that local stability depends on delays only through their heterogeneity.
Development and Application of an Operator's Stimulation Monitoring System (1987)

ABSTRACT The monitoring of stimulation treatments has traditionally been left to the service company providing the pumping service. This paper describes the development of a monitoring system by an operator that is capable of being used with all the major service companies. The benefits of the SMART (Stimulation Monitoring Analysis and Research Truck) system is shown from quality control information obtained during four massive hydraulic fracture treatments. Data previously not recorded continuously on-site is shown to be of importance. The instrumentation used is also discussed together with some of the limitations and successful applications from monitoring over fifty treatments.
Effect of Supplementation with Polyunsaturated Fatty Acids and Micronutrients on Learning and Behavior Problems Associated with Child ADHD (2007)

These results add to preliminary findings that ADHD-related problems with inattention, hyperactivity, and impulsivity might respond to treatment with PUFAs and that improvements may continue with supplementation extending to 30 weeks.
Control of enzyme enantioselectivity with pressure changes in supercritical fluoroform (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControl of enzyme enantioselectivity with pressure changes in supercritical fluoroformSanjay V. Kamat, Eric J. Beckman, and Alan J. RussellCite this: J. Am. Chem. Soc. 1993, 115, 19, 8845–8846Publication Date (Print):September 1, 1993Publication History Published online1 May 2002Published inissue 1 September 1993https://pubs.acs.org/doi/10.1021/ja00072a050https://doi.org/10.1021/ja00072a050research-articleACS PublicationsRequest reuse permissionsArticle Views142Altmetric-Citations84LEARN 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
Design of the Compact Toroid Fueler for Center Fueling Tokamak de Varennes (1993)

Reactor particle fueling is one of the issues that remain to be resolved in the development of a tokamak fusion reactor. One of the most promising concepts of reactor fueling is the injection of high-speed compact toroids (CTs). Compact toroid formation and acceleration at the Ring Accelerator Experiment (RACE) device at Lawrence Livermore National Laboratory has shown that CT plasmoid velocities sufficient for center fueling fusion reactors can be achieved by using coaxial accelerators. The Compact Toroid Fueler (CTF) will inject high-speed, dense spheromak plasmoids into the Tokamak de Varennes (TdeV) to examine the feasibility of this approach as a fueler for future reactors. Here, a conceptual design study of the particle fueler for TdeV is presented. The issues of CTF design that are considered are formation and relaxation of an axisymmetric CT, optimization of accelerator performance to improve injector electrical efficiency, separation of formation and acceleration phases to improve injector reproducibility, minimization of entrained impurities in the CT, and minimization of neutral gas load to the tokamak following CT fueling. The CTF injector will test theories on CT/tokamak interaction related to reactor fueling. Among the eventual physics questions addressed are the multiple-pulse requirements for future injectors, the bootstrap current enhancement factor, CT fuel confinement times, impurity effects, plasma heating, injector electrical efficiency, and the effect of gas load on the tokamak following CT injection.
Cyclic Equalization-A New Rapidly Converging Equalization Technique for Synchronous Data Communication (1975)

A new technique for very fast start-up of adaptive transversal-filter equalizers used in high-speed synchronous data communications is presented. A special training sequence whose period in symbols is equal to the number of equalizer taps is used initially to achieve an open eye pattern. Rapid convergence, even over highly distorted channels, is obtained because an ideal reference sequence is available at the receiver, but it is not necessary to synchronize the ideal reference with the received sequence. The special choice of the training sequence automatically provides the synchronized ideal reference needed for fast convergence, but the resulting equalizer coefficients may be cyclically displaced from their proper positions. After the eye is opened by this process, the equalizer coefficients are rotated to their proper positions, and decision-directed equalization is used with either a longer training sequence or random data to achieve final tap settings. Adjustments during the training period can be made with a gradient-type algorithm or with stochastic adjustment techniques; an exact analysis is possible for both of these schemes. Cyclic equalization is shown to provide perfect equalization at evenly spaced points in the frequency domain.
Improvements to Microcircuit Reliability by the Use of Inhibited Encapsulants (1984)

A novel method of improving the reliability of plastic packaged semiconductor devices has been developed. One of the major causes of failure in such devices is corrosion due to moisture permeating through the encapsulant, transporting small amounts of ionic impurity and condensing at the chip surface to form an aggressive electrolyte. This can be combatted by compounding corrosion inhibiting chemicals in the encapsulating resin. These inhibitors are transported by diffusing moisture and greatly reduce the aggressiveness of the condensed electrolyte. The basis of choosing suitable inhibitors is described together with the results of accelerated tests on microcircuits encapsulated using this technology. Both liquid epoxy and transfer moulding epoxy novolac systems have been investigated. Ancillary testing has also been performed to investigate possible deleterious side effects of using inhibitors e.g. electro-migration, parasitic MOS formation, effects on resin adhesion and Tg. Such effects were found to be absent.
Conformation of sLe<sup>x</sup> Tetrasaccharide, Free in Solution and Bound to E-, P-, and L-Selectin<sup>,</sup> (1997)

The conformations of the NeuAcα2(I)→3Galβ1(II)→4[Fucα1(III)→3]GlcNAc-O-CH3 tetrasaccharide (sLex), in aqueous solution and bound to E-, P-, and L-selectin have been determined using high resolution NMR spectroscopy. In the free ligand, the conformation of glycosidic linkage I is disordered with {ΦI, ΨI} sampling values close to {−60°, 0°}, {−100°, −50°}, and {180°, 0°}. The trisaccharide portion is rigid and characterized by {ΦII, ΨII; ΦIII, ΨIII} = {46°, 18°; 48°, 24°}. The measured dissociation rates and equilibrium binding constants, {koff, KD}, were {164 ± 24 s-1, 0.72 ± 0.4 mM}, {522 ± 166 s-1, 7.8 ± 1.0 mM}, and {1080 ± 167 s-1, 3.9 ± 0.6 mM} at 300 K for E-, P-, and L-selectin, respectively. The bound conformations of the ligand were calculated from the full relaxation matrix analysis of transferred-NOE spectra for E- and P-selectin or by using a two-spin approximation for the L-selectin complex. Both E- and P-selectin recognize the {−60°, 0°} conformation of sLex while the {−100°, −50°} conformer is probably recognized by L-selectin. The conformation of the branched trisaccharide portion in the bound state remains close to the conformation of the free ligand. In the E-, P-, and L-selectin complexes the GalH4 proton is in the vicinity of protein aromatic protons, most likely Tyr94 and/or Tyr48.
FPGA implementation of an OFDM baseband transmitter (2011)

The main objective of this paper is to show the design implementation of an OFDM (Orthogonal Frequency Division Multiplexing) transmitter that will be part of a future DVB-T demonstrator. After system modeling and simulation, we proceeded with the design architecture synthesis which will be mapped to the Virtex-II Pro™ devices. Thanks to the flexibility of the proposed architecture, the transmitter can be updated to modulate any other communication system with relatively little effort.