gebhart/patrepeval huggingface dataset:
Gas Turbine Compressor Washing State of the Art: Field Experiences1 (2000)

Technology development in gas turbine compressor washing over the last 10 years and today’s state of the art technology is presented in this paper. Based on various long term field tests and observations, correlation between rate of power degradation and atmospheric conditions can be established. Questions about compressor on line washing with water alone against the use of detergents, as well as washing frequencies are also addressed in this paper. Performance degradation behavior between gas turbines of different sizes and models can be explained with an index of sensitivity to fouling. The implementation of an optimized regime of on line and off line washing in the preventive turbine maintenance program is important. It will improve the plant profitability by reducing the costs of energy production and contribute to a cleaner environment.
Hierarchical multilayer perceptron based language identification (2010)

Automatic language identification (LID) systems generally exploit acoustic knowledge, possibly enriched by explicit language specific phonotactic or lexical constraints. This paper investigates a new LID approach based on hierarchical multilayer perceptron (MLP) classifiers, where the first layer is a ``universal phoneme set MLP classifier''. The resulting (multilingual) phoneme posterior sequence is fed into a second MLP taking a larger temporal context into account. The second MLP can learn/exploit implicitly different types of patterns/information such as confusion between phonemes and/or phonotactics for LID. We investigate the viability of the proposed approach by comparing it against two standard approaches which use phonotactic and lexical constraints with the universal phoneme set MLP classifier as emission probability estimator. On SpeechDat(II) datasets of five European languages, the proposed approach yields significantly better performance compared to the two standard approaches.
An Alternating-Direction-Implicit Iteration Technique (1960)

Introduction. In recent years, considerable effort has been devoted to the analysis of alternating-direction-implicit (ADI) iteration schemes for solving large systems of linear equations [1, 2, 3, 4]. The basic formulation by Peaceman and Rachford [1] and analysis by Douglas [2] laid the groundwork for an extension by Sheldon and Wachspress [3] to a wider class of problems. In [3] and in the work of Birkhoff and Varga [4] the relationship between convergence rate and the commutation of certain matrices was described. In this paper we present some new convergence proofs and extend the analysis beyond the class of problems previously considered. We also describe a formulation for computation on a high speed computer which involves a transformation of the usual equations in order that fast memory requirements and the number of arithmetic operations be reduced. The pioneering work of Peaceman, Rachford and Douglas included application to parabolic and elliptic differential equations. Our application has been to the elliptic difference equations which arise in neutron diffusion calculations. Our approach differs in three respects: 1. The original equations are conditioned in a manner indicated by the generalized theory. 2. Iteration parameters are based on a minimax principle. 3. Computation logic has been modified to reduce computer time and memory requirements.
BRACING FOR 'K' (2007)

RETURN TO ISSUEPREVNewsNEXTBRACING FOR 'K'Producers, suppliers ready wares for triennial PLASTICS SHOWCASEPATRICIA SHORT and ALEX TULLOCite this: Chem. Eng. News 2007, 85, 28, 26Publication Date (Print):July 8, 2007Publication History Published online29 October 2010Published inissue 8 July 2007https://pubs.acs.org/doi/10.1021/cen-v085n028.p026https://doi.org/10.1021/cen-v085n028.p026newsACS PublicationsCopyright © 2007 AMERICAN CHEMICAL SOCIETYArticle Views12Altmetric-Citations-LEARN 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 options SUBJECTS:Plastics,Polymers Get e-Alerts
Compensatory growth in the broiler chicken: a review (1996)

AbstractThe phenomenon of compensatory growth in broiler chickens subjected to early life undernutrition is reviewed. Increased interest in this concept is attributed to problems associated with early life fast growth rate, especially in broilers fed ad libitum. These problems include high body fat deposition, and a high incidence of skeletal and metabolic disorders. Factors that influence compensatory growth in the broiler chicken include the nature, severity and duration of undernutrition, as well as the age at the commencement of undernutrition and the degree and pattern of realimentation. Many studies have reported improvement in feed efficiency during compensatory growth in restricted-refed broilers. Broiler chickens undergoing compensatory growth also exhibit greater than normal feed intake relative to body weight and some associated digestive adaptation. The use of this concept to address problems associated with early life fast growth rate requires more studies of the nutrition of the broiler chicken during the period of growth compensation.Keywords: Broilerundernutritioncompensatory growthbody fatefficiency
Megalin is essential for renal proximal tubule reabsorption of (111)In-DTPA-octreotide. (2005)

This study revealed the molecular mechanism of [(111)In-DTPA]octreotide uptake in renal proximal tubules involving the receptor megalin. Identification of megalin may be crucial for further research into strategies to reduce renal uptake.
RF Microalgal lipid content characterization (2014)

Most conventional techniques for the determination of microalgae lipid content are time consuming and in most cases are indirect and require excessive sample preparations. This work presents a new technique that utilizes radio frequency (RF) for rapid lipid quantification, without the need for sample preparation. Tests showed that a shift in the resonance frequency of a RF open-ended coaxial resonator and a gradual increase in its resonance magnitude may occur as the lipids content of microalgae cells increases. These response parameters can be then calibrated against actual cellular lipid contents and used for rapid determination of the cellular lipids. The average duration of lipid quantification using the proposed technique was of about 1 minute, which is significantly less than all other conventional techniques, and was achieved without the need for any time consuming treatment steps.
Flexible Dynamic Mesh VPN (2013)

The purpose of a Dynamic Mesh VPN (DMVPN) is to allow IPsec/IKE
Security Gateways administrators to configure the devices in a partial
mesh (often a simple star topology called Hub-Spokes) and let the
Security Gateways establish direct protected tunnels called Shortcut
Tunnels. These Shortcut Tunnels are dynamically created when traffic
flows and are protected by IPsec. To achieve this goal, this document
extends NHRP ([RFC2332]) into a routing policy feed and integrates GRE
tunneling with IKEv2 and IPsec to provide the necessary cryptographic
security.
NEW VISCOSITY CORRELATIONS FOR DEAD CRUDE OILS (2007)

Based on a non-linear regression method, using relatively a large set of experimental data, new comprehensive correlations for prediction of viscosity of the Iranian heavy and light dead crude oils have been developed. The new models correlate viscosity, °API gravity and temperature for a quite wide range, i.e. 2-570 cP for viscosity and 17-45 for °API gravity. Absolute average deviation (%AAD) of 19.5% and 15.3% are achieved for the heavy (°API=17~28) and light (°API=28~45) crude oils, respectively. A comparison with previous works reveals good prediction ability of the new correlations for the Iranian dead crude oils.
Synthesis of Silhouettes and Visual Hull Reconstruction for Articulated Humans (2008)

In this paper, we propose a complete framework for improved synthesis and understanding of the human pose from a limited number of silhouette images. It combines the active image-based visual hull (IBVH) algorithm and a contour-based body part segmentation technique. We derive a simple, approximate algorithm to decide the extrinsic parameters of a virtual camera, and synthesize the turntable image collection of the person using the IBVH algorithm by actively moving the virtual camera on a properly computed circular trajectory around the person. Using the turning function distance as the silhouette similarity measurement, this approach can be used to generate the desired pose-normalized images for recognition applications. In order to overcome the inability of the visual hull (VH) method to reconstruct concave regions, we propose a contour-based human body part localization algorithm to segment the silhouette images into convex body parts. The body parts observed from the virtual view are generated separately from the corresponding body parts observed from the input views and then assembled together for a more accurate VH reconstruction. Furthermore, the obtained turntable image collection helps to improve the body part segmentation and identification process. By using the inner distance shape context (IDSC) measurement, we are able to estimate the body part locations more accurately from a synthesized view where we can localize the body part more precisely. Experiments show that the proposed algorithm can greatly improve body part segmentation and hence shape reconstruction results.
Molecular Identification of Oligoalginate Lyase of <i>Sphingomonas</i> sp. Strain A1 as One of the Enzymes Required for Complete Depolymerization of Alginate (2000)

A bacterium, Sphingomonas sp. strain A1, can incorporate alginate into cells through a novel ABC (ATP-binding cassette) transporter system specific to the macromolecule. The transported alginate is depolymerized to di- and trisaccharides by three kinds of cytoplasmic alginate lyases (A1-I [66 kDa], A1-II [25 kDa], and A1-III [40 kDa]) generated from a single precursor through posttranslational autoprocessing. The resultant alginate oligosaccharides were degraded to monosaccharides by cytoplasmic oligoalginate lyase. The enzyme and its gene were isolated from the bacterial cells grown in the presence of alginate. The purified enzyme was a monomer with a molecular mass of 85 kDa and cleaved glycosidic bonds not only in oligosaccharides produced from alginate by alginate lyases but also in polysaccharides (alginate, polymannuronate, and polyguluronate) most efficiently at pH 8.0 and 37 degrees C. The reaction catalyzed by the oligoalginate lyase was exolytic and thought to play an important role in the complete depolymerization of alginate in Sphingomonas sp. strain A1. The gene for this novel enzyme consisted of an open reading frame of 2,286 bp encoding a polypeptide with a molecular weight of 86,543 and was located downstream of the genes coding for the precursor of alginate lyases (aly) and the ABC transporter (algS, algM1, and algM2). This result indicates that the genes for proteins required for the transport and complete depolymerization of alginate are assembled to form a cluster.
Open-access microfluidic patch-clamp array with raised lateral cell trapping sites (2006)

A novel open-access microfluidic patch-clamp array chip with lateral cell trapping sites raised above the bottom plane of the chip was developed by combining both a microscale soft-lithography and a macroscale polymer fabrication method. This paper demonstrates the capability of using such an open-access fluidic system for patch-clamp measurements. The surface of the open-access patch-clamp sites prepared by the macroscale hole patterning method of soft-state elastic polydimethylsiloxane (PDMS) is examined; the seal resistances are characterized and correlated with the aperture dimensions. Whole cell patch-clamp measurements are carried out with CHO cells expressing Kv2.1 ion channels. Kv2.1 ion channel blocker (TEA) dosage response is characterized and the binding activity is examined. The results demonstrate that the system is capable of performing whole cell measurements and drug profiling in a more efficient manner than the traditional patch-clamp set-up.
LASL fabrication flowsheet for GPHS fuel pellets (1979)

The General Purpose Heat Source (GPHS) being developed by the Los Alamos Scienific Laboratory for the Department of Energy, Division of Advanced Nuclear Systems and Projects, consists of a series of graphite modules, each having a thermal power inventory of 62.5 watts. Each module is loaded with four cylindrical 62.5-W /sup 238/PuO/sub 2/ fuel pellets. The report summarizes the specifications for these pellets together with the fabrication flowsheet developed at LASL.
Factores culturales asociados a las conductas sexuales en estudiantes universitarios de Uruguay y España: Estudio Preliminar (2014)

El conocimiento de la conducta sexual y las variables asociadas puede ayudar a desarrollar programas de intervención más efectivos. En el presente estudio se ofrecen los resultados obtenidos a partir de 303 estudiantes de Psicología, 209 españoles y 94 uruguayos. Los instrumentos utilizados evaluaron los conocimientos, los beneficios y costes percibidos de la puesta en marcha de conductas preventivas, la eficacia de las mismas y la conducta sexual puesta en marcha. Los resultados indican la existencia de creencias erróneas sobre el uso del preservativo y la transmisión del VIH, elevada percepción de beneficios y baja percepción de costes asociados al uso del preservativo, que es además utilizado en tres de cada cuatro relaciones sexuales. Otros resultados sugieren que una mayor percepción de costes se asocia a prácticas preventivas ineficaces o cuestionables, mientras que un mayor uso del preservativo se asocia a prácticas eficaces. La creencia de tomar medidas suficientes para protegerse del VIH se encontró asociada a la ideología religiosa y las personas que se declaran religiosas practicantes indican en mayor medida no tomar suficientes precauciones. El género masculino se encontró asociado a una mayor puesta en marcha de prácticas ineficaces y la nacionalidad uruguaya se encontró asociada a una menor puesta en práctica de medidas eficaces y a una mayor toma de la píldora postcoital por no haber utilizado el preservativo. Estos y otros resultados se discuten a la luz de los mitos y creencias sobre la sexualidad.
Rabbit <i>α</i>-globin messenger RNA translation by the mouse ovum (1983)

Fertilized mouse ova were injected with messenger RNA for rabbit globin. The ova were labelled with [3H]leucine and the synthesized rabbit alpha-globin measured by immunoprecipitation. Injection of rabbit globin mRNA from 4.0 to 15.8 pg/ovum resulted in the synthesis of approximately 1200 dpm/ovum of alpha-globin during an 18 h incubation. A concentration of mRNA that was translated below the maximum level of globin synthesis was used to determine translation efficiency. The efficiency of translation was 14.1 molecules of alpha-globin synthesized/cell/h for each molecule of alpha-globin mRNA injected. The radioactivity in alpha-globin was 1% of the total incorporation in acid-precipitable material. Total incorporation of control and injected ova was not significantly different. This study shows that the fertilized mouse ovum can translate an injected foreign message with essentially the same efficiency as that reported for the Xenopus oocyte but substantially lower than the reticulocyte and that the translational capacity of the mouse fertilized ovum for injected mRNA is limited with little if any spare translational ability.
Laminin 411 acts as a potent inducer of umbilical cord mesenchymal stem cell differentiation into insulin-producing cells (2014)

Our results demonstrate that laminin 411 acts as a potent differentiation inducer of IPCs from UC-MSCs via the Pdx1 and Ngn3 signaling pathways. Moreover, transfusion of laminin 411 induced-IPCs more efficiently improves symptoms and survival of T1DM rats. These novel finding highlights a potential clinical application of laminin 411 induced-IPCs in the treatment of T1DM, which calls for further studies.
Network world network security secrets (1993)

You've probably read many articles that how computer systems are vulnerable to electronic break-ins that allow snoopers access to everything from top secret government files to electronic money orders. Now top security experts David Stang and Sylvia Moon show today's network administrators how to protect their valuable data from theft and destruction by hackers, viruses, corporate spies, and more.
SYNTHESIS AND BIOLOGICAL STUDIES OF SOME SCHIFF BASE COMPOUNDS AND THEIR TRANSITION METAL COMPLEXES (2005)

This project was aimed at the synthesis of some Schiff base compounds and their transition metal complexes of biological significance. Thus, the Schiff bases (109)-(112)were synthesized by the reactions of 2-aminoniconitic acid and salicyaldehyde, 5-bromosalicyaldehyde, 5-nitrosalicyaldehyde and 5-methoxysalichyladldehyde, respectively. Similarly, the Schiff vases (113)-(115) were prepared by condensing the amino component, 2-amino-1,3,4-thiadiazole with the respective aldehydes i.e furfuraldehyde, thiophene-2carboxaldheyde and pyrrole-2-carboxaldehyde. In a similar fashion, the Schiff bases(116)-(121) were derived from 5-amino-1,3,4-thiadiazole-2-thiol and the respective aldehydes i.e furfuraldehyde, thiophene-2-carboxaldehyde, 4-bromothiophene-2-carboxaldehyde, pyrrole-2-carboxaldehyde, salicylaldehyde, and pyrindine-2-carboxaldehyde. The chemical structures of all the Schiff bases were determined by analytical and spectral (IR, 1H-NMR) methods.\n\nOf these Schiff bases,(113)-(112) were used as potential ligands for synthesizing their cobalt(II), nickel(II) and zinc(II) complexes, whereas the Schiff bases (109)-(112) were used for complexation with metal ions viz. cobalt(II), nickel(II) and zinc(II) only, the synthesized metal complexes were characterized by elemental analyses, molar conductance, magnetic moment, IR and electronic spectral data.\n\nThe synthesized Schiff bases and their transition metal complexes were screened for their in vitro antibacterial activity against four Gram-negative (Escherichia coli, Pseudomonas aeruginosa, typhi, Shigella flexneri)and two Gram-positive (Bacillus subtilis, Staphylococcus aureus) bacterial strains by the agar-well diffusion method. The synthesized Schiff bases were found exhibit no or low to moderate activity against one or more bacterial species. On the contrary, all the metal complexes exhibited varied activity against different bacteria. The Schiff bases, which were inactive before complexation became active and less active ones, became more active upon coordination with metal ions. The metal complexes(150)-(151),(154)-(155), (157)-159), and (166)-(167) showed comparatively much higher activity. However, the metal complex(155) was found to be the most active one.
Linear predictive analysis for ultrasonic speech (2010)

Employing low-frequency ultrasonic waves to map vocal tract features is a novel research area that can lead to significant applications in speech rehabilitation for voice-loss patients, and in secure/unvoiced mobile telephony. An analytical formulation is presented to extend the extremely useful tool of linear predictive analysis from the one-dimensional audible speech domain to the three-dimensional ultrasonic speech space. The mathematical and physical analyses, supported by finite-element simulation results, prove the validity of the approach.
Aliasing in signature analysis testing with multiple input shift registers (1990)

An investigation of the properties of multiple input shift registers for signature analysis is presented. The assumption of independent errors at the register inputs has been used to model the register behavior as a Markov process whose equations have been solved to obtain the exact dependence of aliasing probabilities as a function of test length, input error probabilities, and feedback structure. Some unique featured of maximum-length registers are proven. Accurate simplified expressions of aliasing probability are derived for use as tools in the evaluation of the coverage.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Fuel cells (Mitchell, Will, Jr., ed.) (1964)

ADVERTISEMENT RETURN TO ISSUEPREVBook and Media Revie...Book and Media ReviewNEXTFuel cells (Mitchell, Will, Jr., ed.)Joseph Weissbart Cite this: J. Chem. Educ. 1964, 41, 5, A403Publication Date (Print):May 1, 1964Publication History Received3 August 2009Published online1 May 1964Published inissue 1 May 1964https://doi.org/10.1021/ed041pA403RIGHTS & PERMISSIONSArticle Views356Altmetric-Citations-LEARN 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 InReddit PDF (975 KB) Get e-Alerts Get e-Alerts
Proposal and design of phase-modulated fiber gratings in transmission for pulse shaping (2012)

An approach to pulse shaping using a phase-modulated fiber Bragg grating (FBG) in transmission is proposed and designed. We show that phase-modulated FBGs can provide transmission responses suitable for pulse shaping applications, offering important technological feasibility benefits, since the coupling strength remains basically uniform in the grating. Moreover, this approach retains the substantial advantages of FBGs in transmission, such as optimum energy efficiency, no requirement for an optical circulator, and robustness against fabrication errors.