gebhart/patrepeval huggingface dataset:
Performance of trellis-coded CPM with iterative demodulation and decoding (2001)

Interleaved trellis-coded systems with full response continuous-phase modulation (CPM) are considered. Upper bounds on the bit-error rate performance are derived for coherent detection on the additive white Gaussian noise and flat Rayleigh fading channels by considering the trellis code, interleaver, and CPM modulator as a serially concatenated convolutional code. A coherent receiver that performs iterative demodulation and decoding is shown to provide good bit error performance. Finally, a noncoherent iterative receiver is proposed and is shown to perform close to the coherent iterative receiver.
Performance Appraisals of Gas/Oil Separation Plants (2008)

Summary Produced crude oil typically is processed at a wet-crude-handling facility (WCHF) or a gas/oil separation plant (GOSP). Most of the crude is commingled with water and produced in the form of emulsions that are separated at the GOSP using demulsifiers. In general, the emulsions at the inlet of Saudi Aramco GOSPs are tight, and no free water is observed in the feed stream. This paper describes the performance appraisal of several Saudi Aramco GOSPs. It also discusses the evaluation of these facilities and the efforts undertaken to reduce and optimize the costs of oil/water separation. The most important effort was the characterization of emulsions from various fields. It shows the relative tightness of emulsions and the associated causes of tightness. It has become a diagnostic tool in the quest to understand the causes and treatment of emulsions. The inlet emulsions were characterized by conducting field tests at each of the GOSPs using fresh emulsion samples. The factors associated with the tightness of emulsions include the amount of fine solids such as asphaltenes and scales in the crude, water cuts, temperature, brine chemistry, and shear. Another aspect of oil-water separation investigated was the effect of processing equipment and vessel retrofitting. These included the conversion of two-phase (gas/liquid) separators into three-phase (gas/oil/water) separators, installation of coalescer packs, demulsifier injection strategies, and use of online analyzers. An innovative approach to optimizing oil/water separation is described. The paper provides operational data including demulsifier-treatment costs per barrel of oil, invaluable experience, and many "lessons learned" that are applicable to other crude-oil-treating facilities.
Compostability of cellulose acetate films (1994)

Abstract Composting is an accelerated biological decay process viewed by many to be a potential solution to the solid‐waste management crisis existing in many parts of the world. As part of a program to develop environmentally nonpersistent polymers that are compatible with a composting environment, we have developed a bench‐scale compost methodology that emulates a high efficiency municipal windrow composting operation. A series of cellulose acetate films, differing in degree of substitution, were evaluated in this bench‐scale system. In addition, commercially available biodegradable polymers such as poly(hydroxybutyrate‐ co ‐valerate) (PHBV) and polycaprolactone (PCL) were included as points of reference. Based on film disintegration and on film weight loss, cellulose acetates, having degrees of substitution less than approximately 2.20, compost at rates comparable to that of PHBV. NMR and GPC analyses of composted films indicate that low molecular weight fractions are removed preferentially from the more highly substituted and slower degrading cellulose acetates. © 1994 John Wiley & Sons, Inc.
Qualitative modeling with temporal causality network and quantity network (2003)

A qualitative reasoning scheme with explicit temporal expression is presented. Its aim is to develop a possible solution for the fundamental problem of temporal reasoning and ambiguity rather than to refine the existing techniques for a specific domain. The proposed system represents the system behavior in the form of a partially ordered network. Time intervals may be defined in terms of relative lengths in a quantity space. Such explicit description of temporal quantities helps reduce ambiguity in qualitative simulation. An independent quantity space management system organizes the qualitative reasoning about physical and temporal quantities.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Drinking water quality and chronic disease (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDrinking water quality and chronic diseaseErnest Angino, Bobby G. Wixson, and Ivan SmithCite this: Environ. Sci. Technol. 1977, 11, 7, 660–665Publication Date (Print):July 1, 1977Publication History Published online1 May 2002Published inissue 1 July 1977https://pubs.acs.org/doi/10.1021/es60130a014https://doi.org/10.1021/es60130a014research-articleACS PublicationsRequest reuse permissionsArticle Views232Altmetric-Citations7LEARN 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
Power control in cellular systems subject to constraints and time delays (2002)

Stability is a fundamental property desirable for any controlled system. We briefly review the root locus and describing function techniques, which are tools for stability analysis, and show how they can be applied to power control algorithms in cellular radio networks. The root locus method is used to find stability limits on controller parameters, and describing functions for predicting the presence of oscillations in the system. Thus these methods can be used to support the design phase, when deciding upon the appropriate controller parameters. These tools are demonstrated for various control algorithms and when different smoothing filters are applied. The analysis reveals that the distributed power control (DPC) algorithm, which works fine under ideal circumstances, yields an unstable system when subject to a small time delay. Furthermore, it is concluded that the performance with respect to stability is better when the measurements are averaged by an exponential forgetting filter than by the moving average filter.
GALLIUM NITRIDE INTEGRATED GAS/TEMPERATURE SENSORS FOR FUEL CELL SYSTEM MONITORING FOR HYDROGEN AND CARBON MONOXIDE (2002)

Experimental results indicate the Pt-GaN-based FET (field effect transitor) gas sensors has the required sensitivity to measure the CO concentration in the 0-500 ppm range in H2 and that the array concept for analyzing complex mixtures is more sensitive with increasing temperature&gt;100•C. The work leverages significant contributions in the literature on FET-based sensors on silicon and gallium nitride device electronics to extend the performance envelope for the FET-based gas sensor technology to high temperature. Results for the Pt and Rh catalytic gates at temperatures at and above 150•C suggest a complex interaction of CO (51-1,014 ppm) and oxygen (0-5,000 ppm) and no saturation by hydrogen at 35vol%. The results are discussed in terms of the models currently used to describe the FET sensing mechanism.
<title>Control of DCG and nonsilver holographic materials</title> (1992)

We review the properties and relative usefulness of 3 non silver Volume holographic recording materials that are available today. Dichromated Gelatin (DCG) will receive the most attention followed by Dupont Omnidex products and a light treatment of Polyvinyl Carbazole (PVK). Enhancement and control of color, bandwidth and diffraction efficiency of volume reflection holograms recorded in DCG and photopolymers is discussed. Methods of increasing the bandwidth while shifting the center frequency toward the red is given for photopolymers. Red pseudo color will be covered thoroughly so that the practitioner will have all the elementary tools to make full color and broadband DCG holograms from scratch. The entire DCG technology is disclosed as it relates to production of high quality display holograms that span the spectrum and may be narrowband and very deep or shallow and broadband.
Erythroid progenitors differentiate and mature in response to endogenous erythropoietin (2000)

We reported previously that stimulation of glycoprotein 130 (gp130) by a combination of human IL-6 and soluble IL-6 receptor (sIL-6R) could support proliferation, differentiation, and terminal maturation of erythroid cells in the absence of erythropoietin (EPO) from human CD34(+) cells in culture with stem cell factor (SCF). This observation suggested that differentiation of hematopoietic stem/progenitor cells to erythroid cells progressed according to an intrinsic program and that EPO receptor (EPOR) could be replaced by other cytokine receptors. In other words, EPOR appeared to be dispensable for erythropoiesis. Here we examined the role of EPOR in erythropoiesis stimulated by SCF, sIL-6R, and IL-6. Surprisingly, reduction of EPOR expression using antisense oligodeoxynucleotides suppressed erythropoiesis stimulated not only by SCF and EPO, but also by SCF, sIL-6R, and IL-6. EPO mRNA was detected in erythroid cells but not myeloid cells cultured in the presence of SCF, sIL-6R, and IL-6. Furthermore, high concentrations of anti-EPO-neutralizing antibody abrogated erythropoiesis in cultures without exogenous EPO. Based on these results, we suggest that erythroid progenitors themselves secrete EPO and that they have the potential to differentiate and mature in response to this endogenous EPO.
Preparation of Calix[8]arene and Combustion of its blends (2006)

大環状包接化合物の中でも特徴的な構造を有するCalix[8]areneおよびその遷移金属錯体を調整し, polypropylene (PP), polycarbonate (PC) およびpolybutylene terephthalate (PBT) に添加して燃焼特性の変化を測定した. 錯形成定数をEDTAのような一般的な有機配位子の場合と比較したところ, 錯形成率はイオン半径に比例し, 銅イオンの場合, 85%ともっとも高い錯形成率を示した. 調整したCalix[8]areneおよび錯体を1～5wt%程度, 高分子材料に添加して燃焼実験, 熱流束測定および熱重量分析を行った. その結果, 燃焼実験ではFeおよびCu錯体に燃焼抑制効果が見られた. 特にPCの場合, Fe錯体の抑制効果が顕著で着火時間が長くなり, 約4秒で消炎した. PPおよびPBTにおいては燃焼実験での差が小さかったが, 燃焼時の熱流束には差が認められた. またPBTにCu錯体を添加した材料においては添加量と燃焼抑制との間に比例関係が見いだされなかった. 熱重量分析とともに結果を整理し, 高分子の熱分解に視点をあてて解析を行った.
Novel antimicrobial peptides identified from an endoparasitic wasp cDNA library (2009)

We screened an endoparasitic wasp (Pteromalus puparum) cDNA library for DNA sequences having antimicrobial activity using a vital dye exclusion assay. Two dozens of clones were isolated that inhibited the growth of host Escherichia coli cells due to expression of the cloned genes. Three peptides (PP13, PP102 and PP113) were synthesized chemically based on the amino acid sequences deduced from these clones and assayed for their antimicrobial activity. These peptides have net positive charges and are active against both Gram-negative and -positive bacteria, but are not active against fungi tested. Their hemolytic activity on human red blood cells was measured, and no hemolytic activity was observed after 1-h incubation at a concentration of 62.5 microM or below. A Blast search indicated that the three peptides have not been previously characterized as antimicrobial peptides (AMPs). Salt-dependency studies revealed that the biocidal activity of these peptides against E. coli decreased with increasing concentration of NaCl. Transmission electron microscopic (TEM) examination of PP13-treated E. coli cells showed extensive damage of cell membranes. The CD spectroscopy studies noted that the enhanced alpha-helical characteristics of PP13 strongly contribute to its higher antimicrobial properties. These results demonstrate the feasibility to identify novel AMPs by screening the expressional cDNA library.
High Efficiency of Plant Regeneration from Seed-Derived Callus of Zoysiagrass cv. Zenith (1998)

The development of a protocol for high efficiency of embryogenic callus separation, maintenance and plant regeneration from the seeds of zoysiagrass cv. Zenith was studied. Embryogenic callus ratio is absolutely determined by genotype, but by adding high concentration of copper into medium, changing light condition and maintaining callus on initial induction medium for 8∼10 weeks, embryogenic callus can be easily distinguished and its growth can be promoted. There were significant differences among selected callus lines (each from one seed) according to their growth rates and regeneration percentages. Callus pre-treatment with activated charcoal inhibited callus growth, increased the level of precocious germination during culture and promoted shoot cluster formation after transfer to regeneration medium. For long-term callus maintenance, N6AA medium was better than MS medium, because the former inhibited non-embryogenic callus formation and kept vigor of embryogenic callus. The best callus lines Z-(5) has been successfully used for transformation and somaclonal variation selection in our laboratory.
Role of Androgen in the Regulation of Proliferation of Rat Prostatic Stromal and Epithelial Cells in Culture (1987)

No AccessJournal of Urology1 Jun 1987Role of Androgen in the Regulation of Proliferation of Rat Prostatic Stromal and Epithelial Cells in Culture Shi-Ming Chang, Carol Bell, and Leland W.K. Chung Shi-Ming ChangShi-Ming Chang More articles by this author , Carol BellCarol Bell More articles by this author , and Leland W.K. ChungLeland W.K. Chung More articles by this author View All Author Informationhttps://doi.org/10.1016/S0022-5347(17)75256-1AboutPDF ToolsAdd to favoritesDownload CitationsTrack CitationsPermissionsReprints ShareFacebookLinked InTwitterEmail "Role of Androgen in the Regulation of Proliferation of Rat Prostatic Stromal and Epithelial Cells in Culture." The Journal of Urology, 137(6), p. 130A © 1987 by The American Urological Association Education and Research, Inc.FiguresReferencesRelatedDetails Volume 137Issue 6June 1987Page: 130A Advertisement Copyright & Permissions© 1987 by The American Urological Association Education and Research, Inc.MetricsAuthor Information Shi-Ming Chang More articles by this author Carol Bell More articles by this author Leland W.K. Chung More articles by this author Expand All Advertisement Loading ...
Scalable video transmission (2011)

To provide enhanced multimedia services for heterogeneous networks and terminal devices, Scalable Video Coding (SVC) has been developed to embed different quality of video in a single bitstream. Similar to classical compressed video transmission, different packets of a video bitstream have different impacts on received video quality. Therefore, distortion modeling and estimation are necessary in designing a robust video transmission strategy under various network conditions. In the paper, we present the first scheme of packet loss induced distortion modeling and estimation in SVC transmission. The proposed scheme is applicable to numerous video communication and networking scenarios in which accurate distortion information can be utilized to enhance the performance of video transmission. One major challenge in scalable video distortion estimation is due to the adoption of more complicated prediction structure in SVC, which makes the tracking of error propagation much more difficult than the non-scalable encoded video. In this research, we tackle such challenge by systematically tracking the propagation of errors under various prediction trajectories. Supplemental information about the compressed video is embedded into data packets to substantially simplify the modeling and estimation. Moreover, with supplemental data of inter prediction information, distortion estimation can be processed without parsing video bitstream which results in much lower computation and memory cost. With negligible effects on the data size, experimental results show that the proposed scheme is able to track and estimate the distortion with very high accuracy. This first ever scalable video transmission distortion modeling and estimation scheme can be deployed at either gateways or receivers because of its low computation and memory cost.
Fluorescence decay analysis in solution and in a microscope of DNA and chromosomes stained with quinacrine. (1979)

Free accessAbstractFirst published January 1979Fluorescence decay analysis in solution and in a microscope of DNA and chromosomes stained with quinacrine.D J Arndt-Jovin, S A Latt, […], G Striker, and T M Jovin+1-1View all authors and affiliationsVolume 27, Issue 1https://doi.org/10.1177/27.1.438507
Melanoma specific Th1 cytotoxic T lymphocyte lines in Vogt-Koyanagi-Harada disease. (1996)

Melanoma specific HLADR restricted T helper 1 (Th1) CTLs may play a role in the immunopathogenesis of VKH.
Avances recientes en el tratamiento de la infección por Helicobacter pylori (2017)

"El incremento progresivo de la resistencia a los antibióticos de Helicobacter pylori (H pylori), unido a la ausencia de una antibioticoterapia alternativa, desafían nuestra capacidad para luchar de manera eficaz contra esta bacteria en el año 2017. Actualmente, la receta para mejorar nuestra eficacia debe combinar una supresión potente del ácido gástrico, tra- tamientos cuádruples y una extensión de la duración hasta los 14 días en todos los tratamientos empíricos de primera línea y rescate. Vonoprazán, un potente antisecretor que ac- túa inhibiendo la unión del potasio a la bomba de protones (H-K-ATPasa) en la célula parietal gástrica, ha demostrado recientemente ser significativamente superior a los inhibido- res de la bomba de protones (IBP) en tratamientos triples de primera y segunda línea. Estos hallazgos enfatizan la im- portancia de una supresión ácida potente para maximizar la eficacia de los antibióticos. El subcitrato de bismuto, que era uno de los componentes originales de los primeros trata- mientos erradicadores antes de la era de la terapia triple, ha resurgido recientemente como un prometedor agente terapéu- tico. Su adición a regímenes triples (IBP, amoxicilina y bien claritromicina, metronidazol, levofloxacino o rifabutina) ha demostrado conseguir incrementar las tasas de curación por encima del 90%. La combinación de IBP, bismuto y dos an- tibióticos (incluyendo amoxicilina, metronidazol, tetracicli- na o furazolidona), así como Pylera ® (la cápsula 3 en 1 que contiene subcitrato de bismuto, metronidazol y tetraciclina) aportan también un tratamiento altamente eficaz frente a cepas multirresistentes de H pylori."
Quasi-Particle Properties from Tunneling in the <i>v</i> = 5/2 Fractional Quantum Hall State (2008)

Quasi-particles with fractional charge and statistics, as well as modified Coulomb interactions, exist in a two-dimensional electron system in the fractional quantum Hall (FQH) regime. Theoretical models of the FQH state at filling fraction v = 5/2 make the further prediction that the wave function can encode the interchange of two quasi-particles, making this state relevant for topological quantum computing. We show that bias-dependent tunneling across a narrow constriction at v = 5/2 exhibits temperature scaling and, from fits to the theoretical scaling form, extract values for the effective charge and the interaction parameter of the quasi-particles. Ranges of values obtained are consistent with those predicted by certain models of the 5/2 state.
Inversion of seismic surface waves for shear wave velocities (1997)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 1997Inversion of seismic surface waves for shear wave velocitiesAuthors: Rune AllnorAndrea CaitiBørge ArntsenRune AllnorThe Norwegian University of Science and Technology, Andrea CaitiDSEA ‐ University of Pisa, Italy, and Børge ArntsenStatoil Research Centrehttps://doi.org/10.1190/1.1885818 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1885818FiguresReferencesRelatedDetailsCited ByVirtual shear source makes shear waves with air gunsAndrey Bakulin, Albena Mateeva, Rodney Calvert, Patsy Jorgensen, and Jorge Lopez30 January 2007 | GEOPHYSICS, Vol. 72, No. 2Virtual Shear Checkshot with airgunsAndrey Bakulin, Albena Mateeva, Rodney Calvert, and Patsy Jorgensen6 October 2006Variability of Scholte-wave Dispersion in Shallow-water Marine SedimentsSimone Kugler, Thomas Bohlen, Sascha Bussat, and Gerald Klein21 June 2012 | Journal of Environmental and Engineering Geophysics, Vol. 10, No. 2Virtual Shear Source: a new method for shear‐wave seismic surveysAndrey Bakulin and Rodney Calvert7 December 2005Data‐driven adaptive decomposition of multicomponent seabed recordingsRemco Muijs, Johan O. A. Robertsson, and Klaus Holliger27 September 2004 | GEOPHYSICS, Vol. 69, No. 5The physics and simulation of wave propagation at the ocean bottomJosé M. Carcione and Hans B. Helle26 May 2004 | GEOPHYSICS, Vol. 69, No. 3Near‐surface seismic properties for elastic wavefield decomposition: Estimates based on multicomponent land and seabed recordingsRemco Muijs, O. A. Johan Robertsson, Andrew Curtis, and Klaus Holliger20 November 2003 | GEOPHYSICS, Vol. 68, No. 6Imaging through gas‐filled sediments using marine shear‐wave dataJohn R. Granli, Børge Arntsen, Anders Sollid, and Eilert Hilde7 February 2012 | GEOPHYSICS, Vol. 64, No. 3 SEG Technical Program Expanded Abstracts 1997ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 1997 Pages: 2067 publication data© 1997 Copyright © 1997 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 10 Feb 2005 CITATION INFORMATION Rune Allnor, Andrea Caiti, and Børge Arntsen, (1997), "Inversion of seismic surface waves for shear wave velocities," SEG Technical Program Expanded Abstracts : 1921-1924. https://doi.org/10.1190/1.1885818 Plain-Language Summary PDF DownloadLoading ...
Spectral‐domain moment‐method analysis of coplanar microstrip parasitic subarrays (1993)

Abstract Coplanar subarrays consisting of one fed patch and two or more parasitic patches are studied using spectral‐domain full‐wave analysis and the moment method. Results are given for three‐element linear subarrays and the five‐patch cross. © 1993 John Wiley & sons, Inc.
Effects of magnesium-aluminum hydroxide antacid on absorption of rufloxacin (1993)

The present study was designed to determine the effects of an antacid suspension containing magnesium hydroxide and aluminum hydroxide (30 ml of Maalox) on the oral bioavailability of rufloxacin (400 mg). Rufloxacin was administered orally to 12 healthy volunteers according to a randomized, balanced, crossover design. Three treatments were administered to each subject, with a 10-day washout period between treatments; the treatments included rufloxacin alone, rufloxacin taken 5 min after antacid, and rufloxacin taken 4 h before antacid. Administration of antacid within 5 min before the administration of rufloxacin resulted in a substantial decrease in rufloxacin absorption, with a mean percent relative bioavailability compared with control values of 64% (range, 42 to 77%). Administration of antacid 4 h after the administration of rufloxacin slightly affected the absorption of the quinolone (mean relative bioavailability, 87%; range, 51 to 110%). Antacids that contain magnesium and aluminum salts reduce the absorption of rufloxacin. The extent of this interaction depends on the time that elapses between administration of the two drugs.