gebhart/patrepeval huggingface dataset:
Experiences with GreenGPS—Fuel-Efficient Navigation Using Participatory Sensing (2015)

Participatory sensing services based on mobile phones constitute an important growing area of mobile computing. Most services start small and hence are initially sparsely deployed. Unless a mobile service adds value while sparsely deployed, it may not survive conditions of sparse deployment. The paper offers a generic solution to this problem and illustrates this solution in the context of <italic xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">GreenGPS</i> ; a navigation service that allows drivers to find the most fuel-efficient routes customized for their vehicles between arbitrary end-points. Specifically, when the participatory sensing service is sparsely deployed, we demonstrate a general framework for generalization from sparse collected data to produce models extending beyond the current data coverage. This generalization allows the mobile service to offer value under broader conditions. GreenGPS uses our developed participatory sensing infrastructure and generalization algorithms to perform inexpensive data collection, aggregation, and modeling in an end-to-end automated fashion. The models are subsequently used by our backend engine to predict customized fuel-efficient routes for both members and non-members of the service. GreenGPS is offered as a mobile phone application and can be easily deployed and used by individuals. A preliminary study of our green navigation idea was performed in <xref ref-type="bibr" rid="ref1" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">[1]</xref> , however, the effort was focused on a proof-of-concept implementation that involved substantial offline and manual processing. In contrast, the results and conclusions in the current paper are based on a more advanced and accurate model and extensive data from a real-world phone-based implementation and deployment, which enables reliable and automatic end-to-end data collection and route recommendation. The system further benefits from lower cost and easier deployment. To evaluate the green navigation service efficiency, we conducted a user subject study consisting of 22 users driving different vehicles over the course of several months in Urbana-Champaign, IL. The experimental results using the collected data suggest that fuel savings of 21.5 over the fastest, 11.2 percent over the shortest, and 8.4 percent over the Garmin eco routes can be achieved by following GreenGPS green routes. The study confirms that our navigation service can survive conditions of sparse deployment and at the same time achieve accurate fuel predictions and lead to significant fuel savings.
Investigations of thermal polymerization in the stable free‐radical polymerization of 2‐vinylnaphthalene (2002)

Abstract The feasibility of utilizing stable free‐radical polymerization (SFRP) in the synthesis of well‐defined poly(2‐vinylnaphthalene) homopolymers has been investigated. Efforts to control molecular weight by manipulating initiator concentration while maintaining a 2,2,6,6‐tetramethylpiperidinyl‐1‐oxy (TEMPO):benzoyl peroxide (BPO) molar ratio of 1.2:1 proved unsuccessful. In addition, systematic variations of the TEMPO: BPO molar ratio did not result in narrow molecular weight distributions. In situ Fourier transform infrared spectroscopy (FTIR) indicated that the rate of monomer disappearance under SFRP and thermal conditions were identical. This observation indicated a lack of control in the presence of the stable free radical, TEMPO. The similarities in chemical structure between styrene and 2‐vinylnaphthalene suggested thermally initiated polymerization occurred via the Mayo mechanism. A kinetic analysis of the thermal polymerization of styrene and 2‐vinylnaphthalene suggested that the additional fused ring in 2‐vinylnaphthalene increased the propensity for thermal polymerization. The observed rate constant for thermal polymerization of 2‐vinylnaphthalene was determined using in situ FTIR spectroscopy and was one order of magnitude greater than styrene, assuming pseudo‐first‐order kinetics. Also, an Arrhenius analysis indicated that the activation energy for the thermal polymerization of 2‐vinylnaphthalene was 30 kJ/mol less than styrene. © 2002 John Wiley & Sons, Inc. J Polym Sci Part A: Polym Chem 40: 583–590, 2002; DOI 10.1002/pola.10131
Y-box protein-1/p18 as novel serum marker for ovarian cancer diagnosis: A study by the Tumor Bank Ovarian Cancer (TOC) (2016)

Introduction: The cold shock Y-box binding protein-1 (YB-1) fulfills important roles in regulating cell proliferation and differentiation. Overexpression occurs in various tumor cells. Given the existence of extracellular YB-1 we set out to determine the diagnostic, predictive and prognostic role of serum YB-1/p18 for patients with primary epithelial ovarian cancer (EOC).
Efficiency and Resolution in Countercurrrent Chromatography (1991)

Abstract Efficiency and resolution have been studied with a CCC apparatus classified by Y. Ito1 as a HDES type J, and known as the HSCCC or the Multilayer Coil Separator Extractor. It has been shown that the efficiency decreases when increasing the linear velocity of the mobile phase in the column, which can be done by increasing the flow rate, or by decreasing the volume of the mobile phase in the column. The two ways of changing the linear velocity are not equivalent, since, at constant linear velocity, the efficiency increases when the volume of the mobile phase is well balanced with that of stationary phase. For each flow rate there is a minimum value for the volume of the mobile phase, and the relationship is linear. Working under these conditions, changing both the flow rate and the volume of the mobile phase leads to an efficiency which goes through a minimum at medium flow rates. The resolution does not show this minimum: it is best at low flow rates and low volumes of mobile phase, and its variations are more important at low flow rates. This means that, if the resolution is good at moderate flow rates, it will remain good at higher flow rates. Combining three equations, it has been possible to predict the resolution when working with the minimum volume of mobile phase for a given flow rate.
Extraction of Low Concentration Levels of 6-MAM from Urine with a Mixed-mode SPE Sorbent — Strata™ Screen-C (2002)

he screening for and confirmation of drugs of abuse and their metabolites present many challenges in a toxicological analysis. The analyst routinely handles complex biomatrices such as urine or blood searching for the presence of illegal drugs, which, if present, may be at very low concentration levels. Direct analysis of these samples is often hampered by the presence of endogenous compounds in the biomatrix. These interferences are often in higher concentration than that of the target analytes and thus may mask their presence. Solid phase extraction (SPE) is a sample preparation technique that is commonly used to purify and concentrate drug compounds and their metabolites prior to analysis (1). This application describes how Strata™ Screen-C, a new mixed-mode SPE sorbent from Phenomenex, successfully extracts and concentrates ppb concentration levels of 6-monoacetylmorphine (6-MAM) from urine. The Strata Screen-C sorbent is a mixed phase consisting of silica particles functionalized with C8 and benzenesulfonic acid, a strong cation exchanger (SCX). This stationary phase is excellent for the extraction of basic drug compounds and/or their metabolites. Since the pK a of the SCX is � 1, it is always negatively charged. In acidic solutions, the basic analyte will be positively charged and thus can be retained by ionic interactions with the SCX bonded phase (in addition to the Van der Waals interaction with the nonpolar C8 phase). This strong ionic retention mechanism allows the sorbent to be washed with relatively strong solvents such as methanol, which effectively remove anionic and neutral interferences without seriously affecting the recovery of the basic analyte. A mixture of organic solvent and ammonia disrupts the analyte‐sorbent interaction, resulting in the elution of the basic compound. T
Motion in a spherically-symmetric potential (2013)

Abstract This chapter covers problems that deal with discrete spectrum states in central fields; low-energy states; symmetries of the Coulomb problem; and systems with axial symmetry.
Suppression of Apparent Fluid Flow in Capillary Isotachophoresis without Recourse to Capillary Coating (2014)

This manuscript describes a new analytical methodology that allows one to stop the apparent fluid flow in uncoated fused silica capillaries. This method, which requires neither capillary coating nor buffer additive, is based on the use of a 22% polyethylene oxide gel which is placed at the anodic end of the capillary. Its high viscosity precludes its penetration into the capillary and the apparent electro-osmotic pumping effect is stopped. To avoid sample depletion in the gel, the concentration of the background electrolyte in the gel has to be at least 10-fold higher than that of the background electrolyte. This method was applied to isotachophoretic experiments performed in unmodified silica capillaries and at high alkaline pHs. The sharpness of the zone boundaries was perfectly conserved. The separation voltages recorded during the isotachophoretic processes demonstrate a very good stability of the system preventing fluctuations of the analyte migration times between runs. This approach can be virtually applied at any pH value of the background electrolyte, in the presence of organic solvents or surfactants. Using this methodology, it has been possible to detect underivatized Amyloid-β peptide 1-40, one of the potential Alzheimer’s disease biomarkers, at lower concentrations than ever previously achieved using UV detection.
PURIFICATION OF DI(2-ETHYLHEXYL)PHOSPHORIC ACID (1964)

A procedure is described for the purification of di(2-ethylhexyl)phosphoric acid.Essential steps include acid hydrolysis, conversion to the sodium salt, extraction of the neutral impurities with petroleum ether, reconversion to the acid form, and extraction of the monoalkylphosphoric acids with ethylene glycol.Product, in batches of approximately 1200 g, has been obtained in greater than 99.8% purity, nearly free from monoalkylphosphoric acids, trialkylphosphates, alcohols, and complexed metals.The equipment size and reagent quantities may be scaled up or down conveniently.Di(2-ethylhexyl)phosphoric acid. is available comiiercially as the acid itself or as a water solution of its sodium salt.Both forms may be treated successfully by this method.The procedure should be applicable to purification of other similar dialkylphosphoric acids.
Imaging Flesh: Skin-customized Profiling (2008)

Choice of camera calibration target influences how well an algorithm can estimate the color of specific scene objects. This research investigates the value of customized targets for estimation of flesh color. The use of a standard color calibration target is compared with a customized skin-based target. A spectral database of measured skin reflectances was available for use in this study. A skin target was simulated and compared to how well a standard MacBeth ColorChecker performed in calibrating a camera for accurate estimation of skin colors. The ColorChecker had a low average of 2 CIEDE2000 error units for the task. A simulated flesh target improved estimation error by 26%. For a second simulation a noise model derived from a commercial clinical photography system was imposed. In this more realistic case, the skin-customized target improved results by a far larger 60%.
Thermal modeling of E-type magnetic components (2003)

This paper presents a study about thermal considerations and coefficients, especially convection heat transfer coefficient h/sub c/ and the emissivity coefficient /spl epsi/, in the design of magnetic components for power electronics. An improved modelling of the heat transfer is presented with a high accuracy of the convection heat transfer.
Flammability of polystyrene layered silicate (clay) nanocomposites: Carbonaceous char formation (2002)

Abstract Polymer layered‐silicate (clay) nanocomposites have not only the unique advantage of reduced flammability, but also improved mechanical properties. This is a key advantage over many flame retardants, which reduce flammability but also reduce the mechanical properties of the polymer. In our efforts to further understand the mechanism of flame retardancy with polymer‐clay nanocomposites, we investigated the effect of the clay, the loading level and polymer melt viscosity on the flammability of polystyrene‐clay nanocomposites. The nanoscale dispersion of the clay in the polymer was analysed by wide‐angle X‐ray diffraction (XRD) and transmission electron microscopy (TEM). Cone calorimetry and gasification studies were used to evaluate the flammability of these nanocomposites. There were major reductions in peak heat release rates (HRRs), and increased carbonaceous char formation, for these nanocomposites. It was determined that while the viscosity of the PS nanocomposite played a role in lowering the peak HRR, the clay loading level had the largest effect on peak HRR. Finally, it was found that clay catalysed carbonaceous char formation, and the reinforcement of the char by the clay was responsible for the lowered flammability of these nanocomposites. Published in 2002 by John Wiley & Sons, Ltd.
A Graphical Method of Obtaining Spot Size and Mode Volume of an Optical Cavity from Mirror Parameters (1969)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text N. Karube, "A Graphical Method of Obtaining Spot Size and Mode Volume of an Optical Cavity from Mirror Parameters," Appl. Opt. 8, 2365-2366 (1969) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
How to build up the high linearity SQIF structure (2008)

The synthesis of SQIF structures capable of providing highly linear voltage response has been studied in detail. It has been shown that the high linearity SQIF structure ought to involve a set of the connected in series arrays which provide periodic triangular voltage responses with different periods. Such a SQIF shows voltage response characterized by a single high-amplitude triangular peak. One has proposed the basic array structures implementing interferometer cells with cosine-like voltage response. The array response linearity dependence on number of the cells has been studied by means of the spectrum analysis technique. The synthesized SQIF structure allows designing of wide-band high-linear amplifiers for gigahertz frequency range. A travelling wave amplifier design is suggested to avoid limitations resulting from distributive character of the long series array.
Multicenter clinical study of childhood periodic syndromes that are common precursors to migraine using new criteria of the International Classification of Headache Disorders (ICHD-II) (2009)

PURPOSE: To evaluate the clinical features and characteristics of childhood periodic syndromes (CPS) in Korea using the new criteria of the International Classification of Headache Disorders (ICHD)-II. METHODS: The study was conducted at pediatric neurology clinics of five urban tertiary-care medical centers in Korea from January 2006 to December 2007. Patients (44 consecutive children and adolescents) were divided into three groups (cyclic vomiting syndrome [CVS], abdominal migraine [AM], and benign paroxysmal vertigo of childhood [BPVC]) by recurrent paroxysmal episodes of vomiting, abdominal pain, dizziness, and/or vertigo using the ICHD-II criteria and their characteristics were compared. RESULTS: Totally, 16 boys (36.4%) and 28 girls (63.6%) were examined (aged 4-18 yr), with 20 CVS (45.5%), 8 AM (18.2%), and 16 BPVC (36.4%) patients. The mean age at symptom onset was 6.3+/-3.6 yr, 8.5+/-2.7 yr, and 8.5+/-2.9 yr in the CVS, AM, and BPVC groups, respectively, showing that symptoms appeared earliest in the CVS group. The mean age at diagnosis was 8.0+/-3.4 yr, 10.5+/-2.6 yr, and 10.1+/-3.2 yr the CVS, AM, and BPVC groups, respectively. Of the 44 patients, 17 (38.6%) had a history of recurrent headaches and 11 (25.0%) showed typical symptoms of migraine headache, with 5 CVS (25.0%), 2 AM (25.0%), and 4 BPVC (25.0%) patients. Family history of migraine was found in 9 patients (20.4%): 4 in the CVS group (20.0%), 2 in the AM group (25.0%), and 3 in the BPVC group (18.8%). CONCLUSION: The significant time lag between the age at symptom onset and final diagnosis possibly indicates poor knowledge of CPS among pediatric practitioners, especially in Korea. A high index of suspicion may be the first step toward caring for these patients. Furthermore, a population-based longitudinal study is necessary to determine the incidence and natural course of these syndromes
Characteristics of second harmonic generation in GaAs plates (1990)

An experimental investigation was made of second harmonic generation by reflection from (111)- and (100)-cut GaAs surfaces. In the case of polished surfaces a considerable contribution to a nonlinear optical signal was made by reflection of YAG:Nd laser radiation from the rear surface. The advantages of diagnostics of the crystalline state on the basis of second harmonic generation in the transmission configuration were identified.
Scientific Foundations - Reconnaissance automatique de la parole (2002)

Due to the importance of the understanding of dissolution behavior of phosphate-based bioglasses (PBGs) in different biomedical applications, binary sodium and calcium phosphate glasses have been simulated for the first time using a newly developed ReaxFF force field and a standard melt-quench method with the LAMMPS classical molecular dynamics software. The partial radial distribution function of P-O within the first coordination shell indicated two distinct peaks corresponding to phosphorus bonding to NBO and BO, respectively, at distances consistent with those observed experimentally and a P-O coordination number of 4.0. Angular distribution functions were consistent with the experimental data. The calculated network connectivities are in good agreement with experimental data, and the detailed Q<sub><i>n</i></sub> distributions are broader than would be expected.
Studies in Stereochemistry. XVI. Ionic Intermediates in the Decomposition of Certain Alkyl Chlorosulfites (1953)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStudies in Stereochemistry. XVI. Ionic Intermediates in the Decomposition of Certain Alkyl ChlorosulfitesDonald J. CramCite this: J. Am. Chem. Soc. 1953, 75, 2, 332–338Publication Date (Print):January 1, 1953Publication History Published online1 May 2002Published inissue 1 January 1953https://pubs.acs.org/doi/10.1021/ja01098a024https://doi.org/10.1021/ja01098a024research-articleACS PublicationsRequest reuse permissionsArticle Views702Altmetric-Citations46LEARN 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
Electro-Optical Imaging Microscopy of Dye Doped Lipid Bilayer (2009)

We report the first imaging of a dye-doped artificial bilayer using electro-optical microscopy. The applied voltage dependence confirms the origin of the effect. This result is an important step towards a contactless optical patch-clamp.
<title>Handwritten document image database construction and retrieval system</title> (2000)

This paper describes an off-line handwritten document data collection effort conducted at CEDAR and discusses systems that manage the document image data. We introduce the CEDAR letter, discuss its completeness and then describe the specification of the CEDAR letter image database consisting of writer data and features obtained from a handwriting sample, statistically representative of the U.S. population. We divide the document image and information management system into four systems: (1) acquisition, (2) archiving, (3) indexing and retrieval and (4) display systems. This paper discusses the issues raised by constructing the CEDAR letter database and by its potential usefulness to document image analysis, recognition, and identification fields.© (2000) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
CRMA (2011)

Efficiently sharing spectrum among multiple users is critical to wireless network performance. In this paper, we propose a novel spectrum sharing protocol called Collision-Resistant Multiple Access (CRMA) to achieve high efficiency. In CRMA, each transmitter views the OFDM physical layer as multiple orthogonal but sharable channels, and independently selects a few channels for transmission. The transmissions that share the same channel naturally add up in the air. The receiver extracts the received signals from all the channels and efficiently decodes the transmissions by solving a simple linear system. We implement our approach in the Qualnet simulator and show that it yields significant improvement over existing spectrum sharing schemes. We also demonstrate the feasibility of our approach using implementation and experiments on GNU Radios.
CnC-Hadoop (2011)

The information-technology platform is being radically transformed with the widespread adoption of the cloud computing model supported by data centers containing large numbers of multicore servers. While cloud computing platforms can potentially enable a rich variety of distributed applications, the need to exploit multiscale parallelism at the inter-node and intra-node level poses significantly new challenges for software. Recent advances in the Google MapReduce and Hadoop frameworks have led to simplified programming models for a restricted class of distributed batch-processing applications. However, these frameworks do not support richer distributed application structures beyond map-reduce, and do not offer any solutions for exploiting shared-memory multicore parallelism at the intra-node level.
Efficient longitudinal relaxation of the exciton spin in single in quantum dots (2005)

communication orale