gebhart/patrepeval huggingface dataset:
Periodic countercurrent operation of sorption processes applied to water desalination with thermally regenerable ion-exchange resins (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPeriodic countercurrent operation of sorption processes applied to water desalination with thermally regenerable ion-exchange resinsGiorgio Carta and Robert L. PigfordCite this: Ind. Eng. Chem. Fundamen. 1986, 25, 4, 677–685Publication Date (Print):November 1, 1986Publication History Published online1 May 2002Published inissue 1 November 1986https://pubs.acs.org/doi/10.1021/i100024a033https://doi.org/10.1021/i100024a033research-articleACS PublicationsRequest reuse permissionsArticle Views61Altmetric-Citations11LEARN 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 Get e-Alerts
Evaluation of quality of sound source separation algorithms: Human perception vs quantitative metrics (2016)

In this paper we look into the test methods to evaluate the quality of audio separation algorithms. Specifically we try to correlate the results of listening tests with state-of-the-art objective measures. To this end, the quality of the harmonic signals obtained with two harmonic-percussive separation algorithms was evaluated with BSS_Eval, PEASS and via listening tests. A correlation analysis was conducted and results show that for harmonic-percussive separation algorithms, neither BSS_Eval nor PEASS show strong correlation with the ratings obtained via listening tests and suggest that existing perceptual objective measures for quality assessment do not generalize well to different separation algorithms.
Adhesion between highly stretchable materials (2015)

Recently developed high-speed ionic devices require adherent laminates of stretchable and dissimilar materials, such as gels and elastomers. Adhesion between stretchable and dissimilar materials also plays important roles in medicine, stretchable electronics, and soft robots. Here we develop a method to characterize adhesion between materials capable of large, elastic deformation. We apply the method to measure the debond energy of elastomer-hydrogel bilayers. The debond energy between an acrylic elastomer and a polyacrylamide hydrogel is found to be about 0.5 J m(-2), independent of the thickness and the crosslink density of the hydrogel. This low debond energy, however, allows the bilayer to be adherent and highly stretchable, provided that the hydrogel is thin and compliant. Furthermore, we demonstrate that nanoparticles applied at the interface can improve adhesion between the elastomer and the hydrogel.
An Image Reconstruction Algorithm Based on Tikhonov Regularization in Electromagnetic Tomography (2010)

An image reconstruction algorithm based on Tikhonov Regularization algorithm is studied in this paper to improve the accuracy of online image reconstruction in Electromagnetic Tomography (EMT) systems. The method of least squares is employed to reduce the error aroused in the linear approximation of the nonlinear inverse problem. To overcome the ill-posedness, Tikhonov Regularization is introduced to optimize the algorithm. Simulation results have shown the pros and cons of the proposed algorithm, compared with the LBP algorithm.
Faithful to the context? The presentation and representation of American objects in European collections (1999)

In an exhibition entitled ART/artifact, which could be seen in various US museums between 1988 and 1990, objects from Africa were displayed in a variety of museum settings and installation styles (Exhibition Catalogue New York 1988). Some were given an overtly aesthetic presentation as a sculptural group in a way that was familiar to those who visit collections of modem sculpture in museums of modem art. Others were given individual treatment, presented under plexiglass and sanctified by spotlights. For instance, by displaying a repoussé’brass head made in the royal court of Abomey (Benin) lying on its side, it could be made to evoke works like Brancusi’s Sleeping Muse. The elongated stalks of three ivory hatpins from Zaire could be regarded as an abstract sculpture or a graceful plant, though their original audience saw them as neither. A pointed bark cloth hat from Zaire could become an effective sculpture under the photographer’s spotlights, arguably looking more interesting than when it was on someone’s head.
Comments, with reply, on "Adaptive algorithms with an automatic gain control feature" by T.J. Shan and T. Kailath (1990)

It is shown that the new LMS (least-mean-square) algorithm introduced in the above-titled paper (see ibid., vol.35, no.1, p.122-7, 1988) is not properly devised and that it may make the algorithm itself divergent or 'sleep' forever. The authors respond to three points raised by the commenters, noting that the first is the result of an error in the paper, and the second is a universal assumption for algorithms such as theirs and therefore they did not explicitly mention it. They agree that the commenter's third point is significant and means that the algorithm may tend not to work for high-dimensional vector X, but that a more definite statement will need accurate convergence analysis, which is not at hand.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Utilization of the recursive shortest spanning tree algorithm for video-object segmentation by 2-D affine motion modeling (2000)

A novel video-object segmentation algorithm is proposed, which takes the previously estimated 2-D dense motion vector field as input and uses the generalized recursive shortest spanning tree method to approximate each component of the motion vector field as a piecewise planar function. The algorithm is successful in capturing 3-D planar objects in the scene correctly, with acceptable accuracy at the boundaries. The proposed algorithm is fast and requires no initial guess about the segmentation mask. Moreover, it is a hierarchical scheme which gives finest to coarsest segmentation results. The only external parameter needed by the algorithm is the number of segmented regions that essentially control the level at which the coarseness the algorithm would stop. The proposed algorithm improves the "analysis model" developed in the European COST211 framework.
Microwave dielectric heating in synthetic organic chemistry (2008)

First described more than two decades ago, microwave-assisted organic synthesis has matured from a laboratory curiosity to an established technique that today is heavily used in both academia and industry. One of the most valuable advantages of using controlled microwave dielectric heating for chemical synthesis is the dramatic reduction in reaction times: from days and hours to minutes and seconds. As will be explained in this tutorial review, there are many more good reasons why organic chemists are nowadays incorporating dedicated microwave reactors into their daily work routine.
Stocking Retail Assortments Under Dynamic Consumer Substitution (2001)

We analyze a single-period, stochastic inventory model (newsboy-like model) in which a sequence of heterogeneous customers dynamically substitute among product variants within a retail assortment when inventory is depleted. The customer choice decisions are based on a natural and classical utility maximization criterion. Faced with such substitution behavior, the retailer must choose initial inventory levels for the assortment to maximize expected profits. Using a sample path analysis, we analyze structural properties of the expected profit function. We show that, under very general assumptions on the demand process, total sales of each product are concave in their own inventory levels and possess the so-called decreasing differences property, meaning that the marginal value of an additional unit of the given product is decreasing in the inventory levels of all other products. For a continuous relaxation of the problem, we then show, via counterexamples, that the expected profit function is in general not even quasiconcave. Thus, global optimization may be difficult. However, we propose and analyze a stochastic gradient algorithm for the problem, and prove that it converges to a stationary point of the expected profit function under mild conditions. Finally, we apply the algorithm to a set of numerical examples and compare the resulting inventory decisions to those of some simpler, naive heuristics. The examples show that substitution effects can have a significant impact on an assortment's gross profits. The examples also illustrate some systematic distortions in inventory decisions if substitution effects are ignored. In particular, under substitution one should stock relatively more of popular variants and relatively less of unpopular variants than a traditional newsboy analysis indicates.
FLOW AND SEGREGATION BEHAVIOR OF A TWO-PHASE MODEL CONCRETE AROUND BIFURCATING PIPE LINES (1989)

The objective of this research is to investigate the deformation and segregation process of fresh concrete as two-phase material around bifurcations in a pipe line network Visualized tests with model concrete simulating fresh concrete under idealized two-dimensional condition were carried out. By Lagrangian and Eulerian evaluations of aggregate phase with the use of an image analysis, the deformation and segregation of model concrete around bifurcations was clarified, which was highly affected by boundary conditions and liquid viscosity. High viscous liquid phase was found to relax the mutual interaction between aggregate particles and to unify the localization of shear deformation of aggregate phase around the bifurcation point.
Total Synthesis of (+)‐Pleuromutilin (2013)

The first enantiospecific total synthesis of the antibacterial natural product (+)-pleuromutilin has been achieved. The approach includes the synthesis of a non-racemic cyclisation substrate from (+)-trans-dihydrocarvone, a highly selective SmI2-mediated cyclisation cascade, an electron transfer reduction of a hindered ester, and the first efficient conversion of (+)-mutilin to the target.
A Time-Slicing Ring Oscillator for Capturing Instantaneous Delay Degradation and Power Supply Voltage Drop (2006)

A time-slicing ring oscillator (TSRO) which captures dynamic delay degradation due to instantaneous voltage drop on a power supply network is proposed. Voltage drop impact on delay is directly measured and time-domain effective voltage drop waveforms is also obtained. The TSRO consists of standard logic cells only hence fits almost anywhere in logic circuits for in-situ measurements. Measurement results of a test chip using 90-nm process successfully proved its concept
A new pathway for vacuolar cadmium sequestration in <i>Saccharomyces cerevisiae</i> : YCF1-catalyzed transport of bis(glutathionato)cadmium (1997)

The yeast cadmium factor ( YCF1 ) gene encodes an MgATP-energized glutathione S -conjugate transporter responsible for the vacuolar sequestration of organic compounds after their S -conjugation with glutathione. However, while YCF1 was originally isolated according to its ability to confer resistance to cadmium salts, neither its mode of interaction with Cd 2+ nor the relationship between this process and organic glutathione-conjugate transport are known. Here we show through direct comparisons between vacuolar membrane vesicles purified from Saccharomyces cerevisiae strain DTY167, harboring a deletion of the YCF1 gene, and the isogenic wild-type strain DTY165 that YCF1 mediates the MgATP-energized vacuolar accumulation of Cd·glutathione complexes. The substrate requirements, kinetics and Cd 2+ /glutathione stoichiometry of cadmium uptake and the molecular weight of the transport-active complex demonstrate that YCF1 selectively catalyzes the transport of bis(glutathionato)cadmium (Cd·GS 2 ). On the basis of these results—the Cd 2+ hypersensitivity of DTY167, versus DTY165, cells, the inducibility of YCF1-mediated transport, and the rapidity and spontaneity of Cd·GS 2 formation—this new pathway is concluded to contribute substantially to Cd 2+ detoxification.
Dansyl Labeling To Modulate the Relative Affinity of Bile Acids for the Binding Sites of Human Serum Albumin (2011)

Binding of natural bile acids to human serum albumin (HSA) is an important step in enterohepatic circulation and provides a measure of liver function. In this article, we report on the use of four dansyl (Dns) derivatives of cholic acid (ChA) to demonstrate a regiodifferentiation in their relative affinity for the two binding sites of HSA. Using both steady-state and time-resolved fluorescence, formation of Dns-ChA@HSA complexes was confirmed; the corresponding binding constants were determined, and their distribution between bulk solution and HSA microenvironment was estimated. By means of energy transfer from Trp to the Dns moiety, donor-acceptor distances were estimated (21-25 Å) and found to be compatible with both site 1 and site 2 occupancies. Nevertheless, titration using warfarin and ibuprofen as specific displacement probes clearly indicated that 3α- and 3β-Dns-ChA bind to HSA at site 2, whereas their C-7 regioisomers bind to HSA at site 1. Furthermore, the C-3-labeled compounds are displaced by lithocholic acid, whereas they are insensitive to ChA, confirming the assumption that the former binds to HSA at site 2. Thus, Dns labeling provides a useful tool to modulate the relative affinity of ChA to the major binding sites of HSA and, in combination with other fluorescent ChA analogs, to mimic the binding behavior of natural bile acids.
Unique Pt5 metallacycle: [PtIICl(pyrrolidinedithiocarbamate)]5 (2011)

The neutral complex [PtCl(PyDT)](5) (PyDT = (CH(2))(4)NCS(2)(-)) represents the first example of a Pt(5) metallacycle. This unique architecture based on chiral S-bridged Pt(II) monomers was prepared by thermal degradation of the reaction product of PtCl(2) and a pyrrolidinedithioester.
On Piece Selection for Streaming BitTorrent (2008)

[This corrects the article DOI: 10.3389/fpsyg.2019.01220.].
Development of an improved methodology to detect infectious airborne influenza virus using the NIOSH bioaerosol sampler (2011)

A unique two-stage cyclone bioaerosol sampler has been developed at NIOSH that can separate aerosols into three size fractions. The ability of this sampler to collect infectious airborne viruses from a calm-air chamber loaded with influenza A virus was tested. The sampler's efficiency at collecting aerosolized viral particles from a calm-air chamber is essentially the same as that from the high performance SKC BioSampler that collects un-fractionated particles directly into a liquid media (2.4 × 10(4) total viral particles per liter of sampled air (TVP/L) versus 2.6 × 10(4) TVP/L, respectively, after 15 min) and the efficiency is relatively constant over collection times of 15, 30 and 60 min. Approximately 34% of the aerosolized infectious virus collected after 15 min with the NIOSH bioaerosol sampler remained infectious, and infectious virus was found in all three size fractions. After 60 min of sampling, the infectious virus/liter air found in the NIOSH bioaerosol sampler was 15% of that found in the SKC BioSampler. This preservation of infectivity by the NIOSH bioaerosol sampler was maintained even when the initial infectivity prior to aerosolization was as low as 0.06%. The utility of the NIOSH bioaerosol sampler was further extended by incorporating an enhanced infectivity detection methodology developed in our laboratory, the viral replication assay, which amplified the infectious virus making it more readily detectable.
Synthesis and characterization of novel side-chain liquid crystalline polymers with a poly(1,6-heptadiyne) main chain (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of novel side-chain liquid crystalline polymers with a poly(1,6-heptadiyne) main chainSung Ho Jin, Sang Jun Choi, Wonsool Ahn, Hyun Nam Cho, and Sam Kwon ChoiCite this: Macromolecules 1993, 26, 7, 1487–1492Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Published inissue 1 March 1993https://pubs.acs.org/doi/10.1021/ma00059a002https://doi.org/10.1021/ma00059a002research-articleACS PublicationsRequest reuse permissionsArticle Views194Altmetric-Citations51LEARN 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
New syntheses of coumarins (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew syntheses of coumarinsJill A. Panetta and Henry RapoportCite this: J. Org. Chem. 1982, 47, 6, 946–950Publication Date (Print):March 1, 1982Publication History Published online1 May 2002Published inissue 1 March 1982https://pubs.acs.org/doi/10.1021/jo00345a009https://doi.org/10.1021/jo00345a009research-articleACS PublicationsRequest reuse permissionsArticle Views1006Altmetric-Citations40LEARN 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
Dual-Band RF Front-End Solution for Hybrid Galileo/GPS Mass Market Receivers (2008)

As a part of the GREAT project (Galileo receiver for the mass market) research and development activities focused on GNSS mass market receivers for handset terminals have been carried out. In this context, ACORDE is developing a RF subsystem, able to operate with Galileo and GPS satellite signals in the presence of the major 2 G/3 G cellular signals or other assistance technology, and investigating the multiband approach. The key focus is on a highly integrated radio front-end (FE) suitable for use within the mobile phone environment for location based services, satisfying the basic requirements for a mass market receiver such as low cost, low footprint, good accuracy, low power consumption and high sensitivity. The target is a Galileo E1/E5A and GPS L1/L5 dual-system dual band GNSS receiver. This paper will discuss the RF system level design issues for such type of receiver and the preliminary results obtained for the first prototypes of a custom MMIC chipset developed in the frame of the project.
What makes a maker: the motivation for the maker movement in ICT (2017)

The maker movement is a cultural trend that focuses on an individual’s ability to be a creator of things using technology. This study provides an exploratory analysis of the motivations of making and community participation in the maker movement. This study conducted a field study based on motivation theory using a survey methodology that involved 93 individual makers from seven online maker communities. The analysis results show that different motives have a positive effect on makers in different ways: extrinsic, status opportunity motivation affects making itself while use-value motivation affects community participation. Intrinsic motivation does not have a significant relationship with either participation or making. Furthermore, community participation is an important factor in making as it influences both learning and performance, while making only influences performance. These results can help to enlarge the understanding of makers and contribute to the growth of the maker movement.
Evolutionary Multi-Objective Optimization: A Critical Review (2006)

AbstractIn this chapter, we will review some of the most representative research in the field of evolutionary multiobjective optimization. We will discuss the historical roots of multiobjective optimization, the motivation to use evolutionary algorithms, and the most popular techniques currently in use. Then, we will discuss some of the research currently under way, including our own. At the end, we will provide what we consider to be some of the most promising paths of future research.Keywordsevolutionary multiobjective optimizationevolutionary algorithmsvector optimizationmultiobjective optimizationgenetic algorithmsmulticriteria optimization
Adaptive control with self-tuning for non-invasive beat-by-beat blood pressure measurement (2011)

Up to now, we have successfully carried out the non-invasive beat-by-beat measurement of blood pressure (BP) in the root of finger, superficial temporal and radial artery based on the volume-compensation technique with reasonable accuracy. The present study concerns with improvement of control method for this beat-by-beat BP measurement. The measurement system mainly consists of a partial pressurization cuff with a pair of LED and photo-diode for the detection of arterial blood volume, and a digital self-tuning control method. Using healthy subjects, the performance and accuracy of this system were evaluated through comparison experiments with the system using a conventional empirically tuned PID controller. The significant differences of BP measured in finger artery were not showed in systolic (SBP), p=0.52, and diastolic BP (DBP), p=0.35. With the advantage of the adaptive control with self-tuning method, which can tune the control parameters without disturbing the control system, the application area of the non-invasive beat-by-beat measurement method will be broadened.
L-band VV clutter analysis for natural land (2004)

Land clutter is statistical by nature, and its values vary in many dimensions. This paper analyzes L-band VV polarized land clutter characteristics acquired by the NASA JPL AirSAR system. In particular, this paper mainly concentrates on the distribution of clutter values with respect to grazing angle for typical vegetation communities in the Northern Territory region in Australia.