gebhart/patrepeval huggingface dataset:
GPS jammer suppression with low-sample support using reduced-rank power minimization (2002)

When wideband and narrowband interferences in a GPS system are stationary, a large number of data samples may be obtained to get a good estimate of the interference. However, the jamming environment may be one in which the narrowband jammers have the ability to change frequencies dynamically or the rapid dynamics of the aircraft during maneuvering causes arrival angles of wideband jammers to change. In either type of jamming environment, an interference suppression algorithm will only be effective if it can rapidly converge with a small sample size. We investigate the performance of reduced-rank interference suppression algorithms under conditions of low sample support. It is demonstrated that the multistage nested Wiener filter (MSNWF) outperforms other reduced-rank techniques in terms of suppressing both wideband and narrowband jammers under conditions of low sample support.
The authors reply (2020)

Division of Respiratory Medicine and Critical Care, Department of Medicine, Yong Loo Lin School of Medicine, National University Singapore, Singapore; Center for Critical Care Nephrology, Clinical Research Investigation and Systems Modeling of Acute Illness (CRISMA) Center, Department of Critical Care, University of Pittsburgh Medical Center, Pittsburgh, PA Dr. Cove received funding from Baxter and Medtronic; he disclosed that he has a patent for carbon dioxide removal by dialysis; and he disclosed that this work was supported in part by grants from Singapore National Medical Research Council, NMRC/TA/0015/2013, and CIA18nov-0010. Dr. Kellum disclosed that he has intellectual property held by University of Pittsburgh on technology discussed.
A continuously variable slope adaptive delta modulation codec system (1983)

The author describes a CMOS single-chip monolithic adaptive delta modulation coder/decoder (codec). The codec uses a 56 kHz sample rate and is implemented with novel switched-capacitor circuits. The simplicity and efficiency of the encoding/decoding scheme allows the inclusion of several other functions on the chip, including a dual-tone multifrequency generator and and an 8-step programmable attenuator. These features make it especially suitable for private automatic branch exchange (PABX) applications. Experimental results are presented that show the circuit meets the necessary systems requirement for all usual applications.
Morphology and Phase Separation of Hydrophobic Clusters of Soy Globular Protein Polymers (2007)

Protein hydrophobic interaction has been considered the most important factor dominating protein folding, aggregation, gelling, self-assembly, adhesion, and cohesion properties. In this paper, morphology and phase separation of hydrophobic clusters, networks, and aggregates of soy globular protein polymers, induced by using a reducing agent (NaHSO3), are studied using microscopic instruments. The morphology and phase separation of these hydrophobic clusters are sensitive to protein structure and composition, pH, and ionic-strength (I(m)). Most of the clusters are in spherical-shape architecture and mainly consist of hydrophobic polypeptides. Rod-shape clusters were also observed at higher ionic strength, and mainly consist of hydrophilic polypeptides. The ratio of hydrophobic/hydrophilic (HB/HL) polypeptides is important to facilitate the formation of clusters in an environment with a certain pH value and ionic strength. At HB/HL 0.8, uniform spherical clusters were observed and diameters ranged from 30 to 70 nm. At HB/HL <0.8, large spherical clusters were formed with diameters ranging from 100 to 1,000 nm, and at HB/HL >or=1.8, large hydrophobic aggregates formed, and size of aggregates can be up to 2 500 nm. When solid content increased from 3% to 38%, at I(m) <or= 0.058 mol x L(-1), pH = 4.8, HB/HL ratio <0.8, the networks turned into a continuous substance that has strong adhesion to various surfaces; at I(m) >or= 0.115 mol x L(-1), HB/HL ratio >or=1.8, the large aggregates became very cohesive and viscoelastic. Clear phase separation was observed during curing between hydrophobic and hydrophilic protein polymers. Phase-separation degree increased as HB/HL ratio increased.
CONTROLLED ATMOSPHERIC ENVIRONMENTS AND THEIR EFFECTS ON APHIDS AND WESTERN FLOWER THRIPS ON FLORAL PRODUCTS (1994)

Shipments of floral products to Pacific rim markets must meet stringent pest-free requirements. Conventional fumigation methods with methyl bromide will soon become unavailable. Studies show that controlled atmosphere (CA) environments can offer effective insect control. Currently, CA overseas marine shipping is occuring with fresh fruits and vegetables. These shipments use microprocessors to precisely control O 2 , CO 2 , temperature and relative humidity. This study is evaluating similar commercial shipments with fresh flowers and foliage under low temperature and low O 2 and high CO 2 atmospheres. Preliminary results with shipments conducted by TransFresh to Guam indicate that properly maintained CA shipments of 0.5 % O 2 kill insects and that flowers in properly maintained atmospheres can withstand 14 days of marine shipment with minimum effect on post-harvest life. Adequate regulation of CA storage during transit seems to be the primary limitation to the expansion of floral markets using this method of shipment.
Design of multidimensional multicode SS system using HCOC & AOCG for high-speed data transmission (2004)

The multicode modulation has been developed for high-speed data transmission over the wireless environments, but the conventional multicode spread spectrum (CMC-SS) system has a critical problem in using (allotting to the users) orthogonal codes (OCs). In this paper, we propose a new technique, called high capacity orthogonal code (HCOC) and advanced orthogonal code group (AOCG) to solve the serious problem as stated above and design multidimensional multicode spread spectrum (MMC-SS) system by using two techniques for high-speed data transmission.
Improved orbital solution and masses for the very low-mass multiple system LHS 1070 (2008)

We present a refined orbital solution for the components A, B, and C of the nearby late-M type multiple system LHS 1070. By combining astrometric datapoints from NACO/VLT, CIAO/SUBARU, and PUEO/CFHT, as well as a radial velocity measurement from the newly commissioned near infrared high-resolution spectrograph CRIRES/VLT, we achieve a very precise orbital solution for the B and C components and a first realistic constraint on the much longer orbit of the A-BC system. Both orbits appear to be co-planar. Masses for the B and C components calculated from the new orbital solution () are in excellent agreement with theoretical models, but do not match empirical mass-luminosity tracks. The preliminary orbit of the A-BC system reveals no mass excess for the A component, giving no indication for a previously proposed fourth (D) component in LHS 1070.
A Practical Synthesis of (Z)-Debromohymenialdisine (1999)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTA Practical Synthesis of (Z)-DebromohymenialdisineAna Carolina Barrios Sosa, Kenichi Yakushijin, and David A. HorneView Author Information Department of Chemistry, Oregon State University, Corvallis, Oregon 97331 Cite this: J. Org. Chem. 2000, 65, 2, 610–611Publication Date (Web):December 23, 1999Publication History Received11 August 1999Published online23 December 1999Published inissue 1 January 2000https://pubs.acs.org/doi/10.1021/jo991277ohttps://doi.org/10.1021/jo991277obrief-reportACS PublicationsCopyright © 2000 American Chemical SocietyRequest reuse permissionsArticle Views483Altmetric-Citations27LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Chemical synthesis,Materials,Oxidation,Pharmaceuticals,Redox reactions Get e-Alerts
A Comparison of Through-the-Objective Total Internal Reflection Microscopy and Epifluorescence Microscopy for Single-Molecule Fluorescence Imaging (2001)

The design and characterization of a wide-field, through-the-objective, Total Internal Reflection (TIR) microscope which has the sensitivity required for characterizing single molecules under ambient conditions is described. A careful comparison between TIR and epifluorescence imaging is made at the single-molecule level with equal incident intensities, using the laser dyes DCM and R6G in a polymer matrix as test samples. With these samples, measurements show that while the signal-to-background ratio (SBR) of single molecules using TIR is comparable with that for epifluorescence imaging over a range of illumination intensities, the signal-to-noise ratio (SNR) for TIR is superior and is the principal source of improved images which have previously been reported with this form of microscopy. The likely source of the improved SNR is simply the reduction in the relative size of photon shot-noise caused by the higher effective pumping intensity inherent in evanescent wave excitation. The technique's general applicability to a wider range of single-molecule studies is discussed. In addition, the effect on detected images produced by variations in the gain of an intensified CCD camera is characterized.
History dependence of protein adsorption kinetics (2001)

The behavior of proteins at biological and synthetic interfaces is often characterized by a strong history dependence caused by long relaxation times or irreversible transitions. In this work, we introduce the rate of adsorption as a means to systematically quantify the extent, and identify the underlying causes, of history dependence. We use multistep kinetic experiments in which the i'th step is an exposure of a Si(Ti)O(2) surface to a flowing fibronectin or cytochrome c solution of concentration c(i) for a time t(i) (c(i) = 0 corresponds to a rinse) and measure the protein adsorption by optical waveguide light mode spectroscopy. The rate of adsorption is sensitive to the structure of the adsorbed layer, and we observe it to greatly increase, for a given adsorbed density, when going from a first to a subsequent adsorption step. This increase is most pronounced when the duration of the initial adsorption step is long. We attribute these observations to the gradual and irreversible formation of protein clusters or locally ordered structures and use them to explain previous underestimates of kinetic data by mesoscopic model descriptions. A thorough understanding of these complex postadsorption events, and their impact on history dependence, is essential for many physiological and biotechnological processes. Optical waveguide lightmode spectroscopy is a promising technique for their macroscopic quantification.
Hydrogen sensing characteristics and mechanism of Pd∕AlGaN∕GaN Schottky diodes subjected to oxygen gettering (2007)

Hydrogen sensing characteristics in vacuum and in air were investigated on Pd Schottky diodes that were formed on AlGaN∕GaN two-dimensional electron gas wafer and subjected to a surface control process for oxygen gettering. By applying the surface control process, leakage currents in Pd∕AlGaN∕GaN Schottky diode were greatly reduced. Such diodes showed high hydrogen detection sensitivities and fast turn-on and -off characteristics in air, although they showed very slow turn-off behavior in vacuum. From detailed measurements of current-voltage (I-V), capacitance-voltage (C-V), and current transient characteristics, the sensing mechanism was explained in terms of Schottky barrier height reduction caused by formation of interface dipole by atomic hydrogen. It was shown that dipole formation is controlled in air by the Langmuir isotherm type adsorption behavior, including the reaction between atomic hydrogen and oxygen. Discrepancies in Schottky barrier height values deduced from I-V and C-V measurements have indicated that current transport is not by the standard thermionic emission process, but by the thermionic field emission process through the thin surface barrier (TSB) in accordance with the TSB model.
Involvement of protein kinase C during taxol-induced activation of murine peritoneal macrophages. (1995)

Taxol has been known to block cell division by stabilizing microtubules with promising anticancer activity. However, taxol has distinct cell cycle-independent effects. Recently, this novel drug has been shown to provide a second signal for murine macrophage activation to tumoricidal activity via L-arginine-dependent nitric oxide (NO) synthesis. To investigate the mechanism of taxol-induced NO synthesis, we evaluated the ability of protein kinase C (PKC) inhibitors such as staurosporine (STSN) or polymyxin B to block taxol-induced effects. Taxol alone had only a small effect, whereas taxol in combination with rIFN-gamma markedly increased NO synthesis in a dose-dependent manner. STSN and polymyxin B decreased NO synthesis, which had been induced by rIFN-gamma plus taxol. Furthermore, prolonged incubation of the cells with phorbol ester, which down-regulates PKC activity, abolished synergistic cooperative effect of taxol with rIFN-gamma on NO synthesis. Synergy between IFN-gamma and taxol was mainly dependent on taxol-induced TNF-alpha secretion because not only the increase of inducible NO synthase (iNOS) gene expression by rIFN-gamma plus taxol was associated with the increased expression of TNF-alpha gene but also taxol-induced NO production was decreased by the treatment of anti-murine TNF-alpha neutralizing Abs. STSN and polymyxin B potently inhibited taxol-induced TNF-alpha secretion and TNF-alpha gene expression as well as iNOS gene expression by rIFN-gamma plus taxol. However, rIFN-gamma plus TNF-alpha-induced NO synthesis was not blocked by STSN or polymyxin B. This result indicates that TNF-alpha-induced signaling for induction of NO synthesis is not dependent on PKC activation, and further suggests that the point at which TNF-alpha acts on the NO synthesis from rIFN-gamma-primed macrophages lies next to the point of PKC activation. In conclusion, the present results strongly suggest that the capacity of taxol to increase NO synthesis from rIFN-gamma-primed macrophages is the result of taxol-induced TNF-alpha secretion via the signal transduction pathway of PKC activation.
The conformation of thioanisoles studied using nuclear magnetic resonance spectra of liquid crystalline solutions (1982)

The n.m.r. spectra of [13CH3]thioanisole, 4-chloro[13CH3]thioanisole and 4-nitro[13CH3]thioanisole as solutes in liquid crystal solvents have been analysed. The results are used to test models of the potential function V(ϕ) describing the reorientation of the SCH3 group about the phenyl–S bond. It is concluded that the molecules cannot be entirely in the forms with all the heavy atoms coplanar. The data are shown to be consistent with two models for V(ϕ), one with a single minimum between ϕ 0 and 90° and the other having minima of different values at ϕ 0 and 90°. The latter model, a mixture of planar and orthogonal forms, is considered to be the more probable and gives the percentage in the planar form to be between 84 and 50% for thioanisole and between 87 and 78% for 4-nitrothioanisole.
Diffraction-based migration velocity analysis using double-path summation (2017)

We apply double-path summation framework to perform automatic diffraction-based time-migration velocity analysis without picking. According to this framework we estimate optimal migration velocity through smooth division of the sums of the images weighted by semblance estimated in dip-angle gathers domain. Automatic velocity extraction workflow allows us to avert subjectivity inherent in picking algorithms. The ability of the proposed approach to automatically estimate migration velocity from diffractions is demonstrated by synthetic and field data examples. Presentation Date: Wednesday, September 27, 2017 Start Time: 9:20 AM Location: 381A Presentation Type: ORAL
3D Knife-edge Characterization of Two-Photon Absorption Volume in Silicon for Integrated Circuit Testing (2011)

We have performed three-dimensional characterization of the TPA effective laser spot size in silicon using an integrated knife-edge sensor. The TPA-induced response of a CMOS integrated circuit is analyzed based on these results and compared to simulation; we have found that the charge injection capacity in IC's active layer could be influenced by irradiance energy and focus depth.
Thermal modeling of solid nonfocusing pump-light collectors used for diode-pumped Nd:YAG lasers (1995)

We have developed a thermal model for the determination of the temperature distribution of a diode side-pumped Nd:YAG laser in which the laser rod is fixed in a solid nonfocusing (prismatic) pump-light collector. The model permits the temperature to be determined as a function of both spatial and temporal parameters for a wide range of boundary conditions and different collector materials. Interferometric measurements were carried out to obtain the averaged rod temperatures for comparison with results from the model and to fix a convective-cooling rate for ambient air that best fits the experimental results. Two cases were studied both theoretically and experimentally with artificial sapphire and BK7 as prism materials, and good agreement was achieved between model and experimental results. The use of artificial sapphire as the prism material reduces by a factor of ~7 both the rod temperature and the warm-up time compared with BK7 glass. Peltier cooling of the underside of the BK7 glass prism yields thermal Characteristics of the device that are similar to those devices with sapphire prisms. Calculations also show that the thermal properties of the fixant are not critical for moderate fixant thermal diffusivities (i.e., k(f) > 10(-8)-10(-7) m(2) s(-1)), thus the choice of an appropriate fixant can be based on its mechanical and index-matching properties alone.
On the mechanism of bubble formation in a fluidized bed (1967)

Abstract A mechanism of bubble formation in a nonhomogeneous fluidized bed, based on instability theory, is suggested. In this mechanism it is assumed that the “bubbles” are formed at the bottom of the bed by the growth of prominences appearing because of the instability to perturbations of the lower surface of the bed. A bubble breaks off when the volume of the prominence becomes sufficiently large so that the buoyant force equals the sum of the bed resistance opposing its growth and the inertial forces. An equation for the diameter of the departing bubble is established.
Temperature-dependent Characterization of Power Amplifiers Using an Efficient Electrothermal Analysis Technique (2021)

In this paper, we propose an efficient methodology for the electrothermal characterization of power amplifier (PA) integrated circuits. The proposed electrothermal analysis method predicts the effect of temperature variations on the key performances of PAs, such as gain and linearity, under realistic dynamic operating conditions. A comprehensive technique for identifying an equivalent compact thermal model, using data from 3-D finite element method thermal simulation and nonlinear curve fitting algorithms, is described. Two efficient methods for electrothermal analysis applying the developed compact thermal model are reported. The validity of the methods is evaluated using commercially available electrothermal computer-aided design (CAD) tools and through extensive pulsed RF signal measurements of a PA device under test. The measurement results confirm the validity of the proposed electrothermal analysis methods. The proposed methods show significantly faster simulation speed comparing to available CAD tools for electrothermal analysis. Moreover, the results reveal the importance of electrothermal characterization in the
Comparison of global horizontal irradiance forecasts based on numerical weather prediction models with different spatio‐temporal resolutions (2016)

Abstract In the framework of the IEA SHC Task 46 “Solar Resource Assessment and Forecasting” we compare solar global horizontal irradiance forecasts based on numerical weather predictions for a variety of different models. These include direct model output of several numerical weather prediction models, a rapid update cycle model assimilating satellite derived cloud products as well as radar data, the multi model ensemble prediction system GLAMEPS, and two MOS systems. In order to allow for a transparent and comparable analysis of the different methods we have set up a joint, consistent framework of evaluation. As a basis for the comparisons we have compiled a common data set of hourly measured solar irradiance values for Denmark, Germany, and Switzerland. Local and regional forecasts are analyzed with respect to different properties. In particular we show that spatial and temporal averaging effects have a strong impact on the root mean square error when comparing solar irradiance forecasts of numerical weather prediction models with different output resolutions. Furthermore, we investigate a new approach to evaluate the models' ability to represent and forecast solar irradiance and cloud variability. The benefit of high resolution mesoscale models in this respect is demonstrated. Copyright © 2016 John Wiley &amp; Sons, Ltd.
Isolation and characterization of novel testis‐specific genes from mouse pachytene spermatocyte‐enriched cDNA library (2005)

<b>Background and Aims: </b> Isolation and analysis of spermatogenesis-specific genes provide important information for elucidating the mechanisms of human infertility. The aim of the present study was to suggest an effective strategy for the comprehensive isolation of novel genes associated with spermatogenesis in mice. <b>Methods: </b> To isolate novel testis-specific genes associated with meiosis in mice, we constructed a mouse pachytene spermatocyte-enriched cDNA library by the centrifugal elutriation method, and sequenced 120 cDNA clones isolated from the cDNA library. A basic local alignment search tool (BLAST) search was carried out on the cDNA clones to find novel genes and then a detailed expression analysis was carried out by Northern blot hybridization and <i>in situ</i> hybridization. <b>Results: </b> Of the 120 cDNA clones, 35 clones (29%) were novel and 18 clones (15%) were expressed only in the testis. The expression patterns of seven novel testis-specific clones were examined on the testis sections. Three clones were expressed in spermatocytes and other germ cells, and two clones were exclusively expressed in spermatocytes. Amino acid sequences of seven novel testis-specific clones were deduced from their nucleotide sequences, suggesting that two of them contain known functional repeat structures. <b>Conclusions: </b> This method provides a powerful strategy to isolate novel testis-specific genes efficiently. (Reprod Med Biol 2005; <b>4</b>: 231-237).
Harmful algal blooms: causes, consequences for the economy, human health and the European Policy (2001)

Harmful algal blooms: causes, consequences for the economy, human health and the European Policy