gebhart/patrepeval huggingface dataset:
Improving Web service QoS for wireless pervasive devices (2005)

The Web services enable interaction among remote and diverse applications running on disparate platforms. While the service providers offer generic service response to meet the requirements of diverse client applications, it is the responsibility of the application to extract relevant data from the response. This causes performance overheads for power and network bandwidth limited pervasive devices due to networking and parsing excess data. It is thus important for services and pervasive applications to interact in a way that optimally utilizes the resources of the pervasive device. In this paper we describe an efficient interaction methodology between Web services and pervasive applications that optimizes the service quality for the device. We extend the quality of service definition beyond service response time to include power and airtime utilization and allow pervasive applications to be aware about it to dynamically adapt to the services and the available resources of the device in realtime.
Propagation and Elimination of Torque Ripple in a Wind Energy Conversion System (1986)

The 2P and 4P harmonics of the torque supplied by a two blade vertical axis wind turbine propagates in the drive train of the wind turbine and deteriorates the quality of the electric power transmitted to the network. This paper shows how the torque ripple propagates and how it can be eliminated by electrical instead of mechanical means. This elimination is obtained by using a converter-fed synchronous generator and by adopting suitable control strategies.
New predictive diamond search algorithm for block-based motion estimation (2000)

In this paper a new fast motion estimation algorithm is presented. The algorithm, named as Predictive Diamond Search, is actually based on the Diamond Search (DS) algorithm, which was recently adopted inside the MPEG-4 standard. The DS algorithm, even though faster than most known algorithms, was found not to be very robust in terms of quality for several sequences. By introducing a new predictive criterion and some additional steps in DS, our simulation results show that the proposed algorithm manages to have similar complexity with the DS algorithm, while having superior and more robust quality, similar to that of the Full Search algorithm.
Condensing enzymes from <i>Cuphea wrightii</i> associated with medium chain fatty acid biosynthesis (1998)

Seed oils of most Cuphea species contain > 90% medium chain (C8-C14) fatty acids. Thioesterases with specificity for these substrates are important determinants of the medium chain phenotype. The role of condensing enzymes, however, has not been investigated. cDNA clones encoding beta-ketoacyl-acyl carrier protein (ACP) synthase (KAS) were isolated from C. wrightii, a C10/C12-producing species. Deduced amino acid sequences of four unique clones were approximately 60% identical to plant KAS I sequences and approximately 75% identical to a distinct class of KAS sequences recently identified in castor and barley. A 46 kDa protein that was observed only in developing and mature seed was detected using antiserum directed against recombinant Cuphea KAS protein. The 46 kDa protein was abundant in developing seeds of six medium chain-producing Cuphea species but barely detected in one long chain-producing species. A 48 kDa protein identified immunologically as KAS I was expressed in both medium and long chain-producing Cuphea species and was detected in all tissues tested. In in vitro assays, extracts from C. wrightii and C. viscosissima developing embryos were unable to extend fatty acid chains beyond C10 following treatment with 10 microns cerulenin, a potent inhibitor of KAS I. However, a C. viscosissima mutant, cpr-1, whose seed oils are deficient in caprate relative to wild type, was impaired in extension of C8 to C10 in this assay and Western analysis revealed a specific deficiency in 46 kDa KAS in cpr-1 embryos. These results implicate cerulenin-resistant condensing activity in production of medium chain fatty acids in Cuphea.
Semantic Instance Segmentation for Autonomous Driving (2017)

Semantic instance segmentation remains a challenge. We propose to tackle the problem with a discriminative loss function, operating at pixel level, that encourages a convolutional network to produce a representation of the image that can easily be clustered into instances with a simple post-processing step. Our approach of combining an off-the-shelf network with a principled loss function inspired by a metric learning objective is conceptually simple and distinct from recent efforts in instance segmentation and is well-suited for real-time applications. In contrast to previous works, our method does not rely on object proposals or recurrent mechanisms and is particularly well suited for tasks with complex occlusions. A key contribution of our work is to demonstrate that such a simple setup without bells and whistles is effective and can perform on-par with more complex methods. We achieve competitive performance on the Cityscapes segmentation benchmark.
4′,5′-Dichloro-2′,7′-dimethoxy-5(6)-carboxyfluorescein (JOE): Synthesis and Spectral Properties of Oligonucleotide Conjugates (2011)

A convenient procedure for the preparation of the fluorescent dye 4',5'-dichloro-2',7'-dimethoxy-5(6)-carboxyfluorescein (JOE) is reported; the overall yield achieved starting from isovanillin is 10 times higher (40% vs 4%) compared to the known procedure. Isomers (5- and 6-) are easily chromatographically separable as pentafluorophenyl esters of 3',6'-O-bis(cyclohexylcarbonyl) derivatives. Four non-nucleoside JOE phosphoramidites based on 5- and 6-isomers and flexible 6-aminohexanol (AH) or rigid 4-trans-aminocyclohexanol (ACH) linkers have been prepared and used for oligonucleotide labeling. Spectral and photophysical properties of 5'-JOE-modified oligonucleotides have been studied. Fluorescence quantum yield of the dye correlates with the nature of the linker (rigid vs flexible) and with the presence of dG nucleosides in close proximity to a JOE residue.
Experiments on Combustion of Heavy Fuels by Medium-Speed Diesel Engines (1987)

<div class="htmlview paragraph">The authors have been carrying out studies of burning lower grade heavy fuels.[<span class="xref">1</span>] [<span class="xref">2</span>] As for “high viscosity” and “low quality”, it is learned from many studies that these two words do not always have the same meaning. In fact, the influences on diesel engine performance are different for fuels with the same viscosity level but from different refinery processes or crude oil sources.</div> <div class="htmlview paragraph">From these points of view, a series of experiments has been carried out on a medium-speed diesel engine using high viscosity fuels up to l000cSt (50°C) prepared by blending the vacuum residue and different diluents, which are marine diesel oil, light cycle oil, and FCC slurry. Each neat diluent has also been tested in order to compare it with the high viscosity fuels.</div> <div class="htmlview paragraph">The ignitability of fuel greatly affects engine performance and combustion characteristics. Moreover, combustion characteristics are varied even if viscosities are the same.</div> <div class="htmlview paragraph">Deterioration of smoke; specific fuel consumption, and deposits in the combustion chamber are high at low load. However, combustion deterioration at low load can be improved by increasing air temperature and injection pressure.</div> <div class="htmlview paragraph">When blending two kinds of fuels, the ignitability of the blended fuel can be determined according to the ignitabilities of the component fuels and their blending ratio. Ignitabilities can be well expressed by CCAI, etc. In this case.</div> <div class="htmlview paragraph">It was impossible to continue stable operation when the ignition delay exceeded about 3 msec as far as this experimental work was concerned. The fuel corresponded to a CCAI of about 860 and higher in such cases.</div> <div class="htmlview paragraph">This paper discusses the above results and focuses mainly on the engine performance and combustion by means of ignition delay, heat release rate and other factors. The injection characteristics of using heavy fuels are also discussed in the paper.</div>
Coulomb oscillations in three-layer graphene nanostructures (2008)

We present transport measurements on a tunable three-layer graphene single electron transistor (SET). The device consists of an etched three-layer graphene flake with two narrow constrictions separating the island from source and drain contacts. Three lateral graphene gates are used to electrostatically tune the device. An individual three-layer graphene constriction has been investigated separately showing a transport gap near the charge neutrality point. The graphene tunneling barriers show a strongly nonmonotonic coupling as function of gate voltage indicating the presence of localized states in the constrictions. We show Coulomb oscillations and Coulomb diamond measurements proving the functionality of the graphene SET. A charging energy of $\approx 0.6$ meV is extracted.
Information Object Definition-based Unified Modeling Language Representation of DICOM Structured Reporting: A Case Study of Transcoding DICOM to XML (2002)

Supplement 23 to DICOM (Digital Imaging and Communications for Medicine), Structured Reporting, is a specification that supports a semantically rich representation of image and waveform content, enabling experts to share image and related patient information. DICOM SR supports the representation of textual and coded data linked to images and waveforms. Nevertheless, the medical information technology community needs models that work as bridges between the DICOM relational model and open object-oriented technologies. The authors assert that representations of the DICOM Structured Reporting standard, using object-oriented modeling languages such as the Unified Modeling Language, can provide a high-level reference view of the semantically rich framework of DICOM and its complex structures. They have produced an object-oriented model to represent the DICOM SR standard and have derived XML-exchangeable representations of this model using World Wide Web Consortium specifications. They expect the model to benefit developers and system architects who are interested in developing applications that are compliant with the DICOM SR specification.
Towards Isozyme-Selective HDAC Inhibitors For Interrogating Disease (2012)

Histone deacetylase (HDAC) enzymes have emerged as promising targets for the treatment of a wide range of human diseases, including cancers, inflammatory and metabolic disorders, immunological, cardiovascular, and infectious diseases. At present, such applications are limited by the lack of selective inhibitors available for each of the eighteen HDAC enzymes, with most currently available HDAC inhibitors having broad-spectrum activity against multiple HDAC enzymes. Such broad-spectrum activity maybe useful in treating some diseases like cancers, but can be detrimental due to cytotoxic side effects that accompany prolonged treatment of chronic diseased states. Here we summarize progress towards the design and discovery of HDAC inhibitors that are selective for some of the eleven zinc-containing classical HDAC enzymes, and identify opportunities to use such isozyme-selective inhibitors as chemical probes for interrogating the biological roles of individual HDAC enzymes in diseases.
Multi-query optimization of sliding window aggregates by schedule synchronization (2006)

No abstract available.
The Estimation of Buried Pipe Diameters by Generalized Hough Transform of Radar Data (2005)

The generalized Hough transform method is applied to the measurement of the diameters of buried cylindrical pipes by Ground Penetration Radar (GPR). 600 MHz radar scans across long pipes, buried in one metre or so of soil, show complex reflection patterns consisting of a series of inverted hyperbolic arcs. The time of flight t(y) as the radar probe is scanned along an axis, y, perpendicular to the pipe, shows an arc whose shape and position depends on 4 unknown variables: y0, the position of the center of the pipe along the scan, z0, the depth of the pipe center, R0, its radius and V0 the velocity in the medium. Analytic expressions for the solution of these variables have been obtained. They use sets of times ti at corresponding positions yi, along the arc, depending on the number of variables to be determined. In the generalized Hough method many such sets of times are chosen randomly from points on the arcs. The results are presented for example as peaks in an accumulator space for each variable. The method is demonstrated for a 0.18 m radius concrete pipe buried at a nominal 1 m depth in a road. Using data acquired at 600MHz frequency (around 0.16m wavelength in soil) the estimated radius was 0.174 ± 0.059 m.
Thermal analysis of the volume phase transition with N-isopropylacrylamide gels (1990)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThermal analysis of the volume phase transition with N-isopropylacrylamide gelsKatsuto Otake, Hiroshi Inomata, Mikio Konno, and Shozaburo SaitoCite this: Macromolecules 1990, 23, 1, 283–289Publication Date (Print):January 1, 1990Publication History Published online1 May 2002Published inissue 1 January 1990https://doi.org/10.1021/ma00203a049RIGHTS & PERMISSIONSArticle Views2750Altmetric-Citations649LEARN 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 (802 KB) Get e-Alerts Get e-Alerts
Inhibition of Contamination of Ru-Capped Multilayer Mirrors for Extreme Ultraviolet Lithography Projection Optics by Ethanol (2007)

The inhibition of the contamination of Ru-capped Mo/Si multilayer mirrors was systematically investigated by introducing ethanol into a controlled vacuum that mainly consisted of water vapor. Water vapor was introduced at a pressure of up to 1.3×10-5 Pa, which is a typical pressure in extreme ultraviolet (EUV) lithography production tools. Additionally, ethanol was introduced at several partial pressures ranging from 1.0×10-7 to 3.8×10-5 Pa. At the lowest ethanol pressure, the same degree of reflectance degradation as in the water-only case was observed. However, reflectance degradation was suppressed at ethanol pressures higher than 2.0×10-6 Pa. As a result of surface analyses using X-ray photoelectron spectroscopy, we determined that the reflectance degradation was caused by oxidation. The inhibition of contamination may be caused by a mechanism of a self-limiting carbon layer from ethanol adsorption on a hydroxylated mirror surface. It was found that oxides at the mirror surface were deoxidized by introduced ethanol. Therefore, deoxidization of the Ru layer may be one of the mechanisms of the inhibition of contamination. The suppression of reflectance degradation was independent of the photon intensity and measured for up to 1200 J/mm2. This dose corresponds to about 3 months of operation for projection optics mirrors at the maximum power expected. Therefore, the introduction of ethanol was found to be a promising method for inhibiting the contamination of projection optics mirrors, which are irradiated by a wide range of EUV power.
Multi-stage decimation filter design technique for high-resolution sigma-delta A/D converters (1992)

A design technique for a multistage halfband decimation filter structure to enhance the effective resolutions of sigma-delta ( Sigma - Delta ) analog-to-digital (A/D) converters is discussed. In particular, a series of six halfband filters is implemented to obtain more than 18 bits of effective resolution from a digital signal with 12-bit effective resolution. Since this multistage structure is flexible to change the filter design specification, the number of stages in the decimation process can be adjusted to fit the needs for a specific application. By taking advantage of the oversampling methodology and third-order noise shaping by the Sigma -D modulator, more than 120 dB of SNR can be achieved. The theoretical analysis and experimental results with a currently available Sigma - Delta converter are also included.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Increased myothermal economy of isometric force generation in compensated cardiac hypertrophy induced by pulmonary artery constriction in the rabbit. A characterization of heat liberation in normal and hypertrophied right ventricular papillary muscles. (1982)

because the controls in the earlier series of five muscles liberated 40% more initial heat per gram of muscle than did the present controls. We believe the present values, obtained from a much larger population, to be a better representation of rabbit papillary muscle energetics.
Comprehensive numerical model for Phase-Change Memory simulations (2005)

A "multi-physics" numerical model that couples a detailed electrical description with the heat equation and with a microscopic picture of the phase transition dynamics is presented. This model, implemented in a three dimensional semiconductor device solver, correctly reproduces the electronic switching effect in the amorphous chalcogenide alloy and the phase-transitions dynamics, providing steady-state and transient simulation results in good agreement with experimental data.
Cloning and Characterization of Two Promoters for the Human HSAL2 Gene and Their Transcriptional Repression by the Wilms Tumor Suppressor Gene Product (2001)

HSAL2 is a member of a gene family that encodes a group of putative developmental transcription factors. The HSAL gene complex was originally identified on the basis of DNA sequence homology to a region-specific homeotic gene (SAL) in Drosophila. This study reveals a novel, functional 5' exon for HSAL2 and demonstrates that two distinct HSAL2 gene transcripts arise from two overlapping transcription units, resulting in proteins that differ by 25 amino acids. By utilizing functional luciferase reporter assays, two distinct promoters for HSAL2, P1 for the proximal promoter (upstream of exon 1) and P2 for the distal promoter (upstream of exon 1A), were identified. Evaluation of mRNA prevalence and tissue specificity, with particular focus on adult tissues, revealed that production of mRNA from P1 was selective and relatively rare. Production of mRNA from P2 was demonstrably higher and was expressed by a greater number of tissues. In contradistinction, HSAL2 expression directed by P2 was undetectable in some malignant populations as opposed to their normal human counterparts, suggesting a potential role as a tumor suppressor gene. Consensus-binding sites were identified for several transcriptional factors, with multiple sites for WT-1, and Hox-1.3 present within both the P1 and P2 regions. In transient transfection assays, transcription from both HSAL2 P1 and P2 was strikingly repressed by the WT-1 tumor suppressor protein. These findings suggest that an intracellular WT-1/HSAL2 pathway may play a role in development and hematopoiesis.
RNase H cleavage of RNA hybridized to oligonucleotides containing methylphosphonate, phosphorothioate and phosphodiester bonds (2020)

Three types of 14-mer oligonucleolides were hybridized to human β-globin pre-mRNA and the resultant duplexes were tested for susceptibility to cleavage by RNase H from E.coli or from HeLa cell nuclear extract. The oligonucleotides contained normal deoxynucleotides, phosphorothioate analogs alternating with normal deoxynucleotides, or one to six methylphosphonate deoxynucleosides. Duplexes formed with deoxyoligonucleotides or phosphorothioate analogs were susceptible to cleavage by RNase H from both sources, whereas a duplex formed with an oligonucleotide containing six methylphosphonate deoxynucleosides alternating with normal deoxynucleotides was resistant. Susceptibility to cleavage by RNase H increased parallel to a reduction in the number of methylphosphonate residues in the oligonucleotide.
Human Immunodeficiency Virus-1 env Impairs Fcγ Receptor-Mediated Phagocytosis Via a Cyclic Adenosine Monophosphate-Dependent Mechanism (1997)

Human immunodeficiency virus (HIV)-1 expression in mononuclear phagocytes is associated with multiple functional defects, including phagocytosis. To assess Fcgamma receptor (FcgammaR) function in cells expressing HIV-1, human promonocytic cells (U937) acutely or chronically infected with HIV-1, or stably transfected with a noninfectious reverse transcriptase (RT) defective HIV-1 provirus (Deltapol), were treated with phorbol 12-myristate 13-acetate for 48 hours and tested for their ability to ingest sheep erythrocytes coated with IgG (E-IgG). HIV-1-infected or transfected U937 cells ingested 50% to 65% fewer E-IgG than controls despite normal surface expression of FcgammaRs. HIV-1 specifically impaired FcgammaR-mediated phagocytosis, as ingestion of complement-coated erythrocytes was unaffected. U937 cells transfected with an env deficient mutant of HIV-1 ingested E-IgG normally, suggesting that the expression of HIV-1 env was required for HIV-1 to inhibit FcgammaR-mediated phagocytosis. Expression of HIV-1 in U937 cells was associated with an increased accumulation of intracellular cyclic adenosine monophosphate (cAMP); addition of the adenylate cyclase inhibitor 2',5'-dideoxyadenosine to these cells decreased intracellular cAMP levels to that of controls and restored FcgammaR-mediated phagocytosis. Addition of either interferon (IFN)-gamma or an inhibitor of cAMP-dependent protein kinase A (KT 5720) to HIV-1-transfected U937 cells also restored FcgammaR-mediated phagocytosis. Expression of HIV-1 induces a specific defect of FcgammaR function in mononuclear phagocytes that correlates with increased levels of cAMP, and can be corrected by pharmacologic manipulation.
Pseudo-Ramp Current Balance (PRCB) Technique With Offset Cancellation Control (OCC) in Dual-Phase DC-DC Buck Converter (2013)

To cope with monolithic controller replicas and the current unbalance situation in multiphase converters, a pseudo-ramp current balance technique is proposed to achieve time-multiplexing current balance in voltage-mode multiphase DC-DC buck converter. With only one modulation controller, silicon area and power consumption caused by the replicas of controller can be reduced significantly. Current balance accuracy can be further enhanced since the mismatches between different controllers caused by process, voltage, and temperature variations are removed. Moreover, the offset cancellation control embedded in the current matching unit is used to eliminate intrinsic offset voltage existing at the operational transconductance amplifier for improved current balance. An explicit model, which contains both voltage and current balance loops with non-ideal effects, is derived for analyzing system stability. Experimental results show that current difference between each phase can be decreased by over 83% under both heavy and light load conditions.