gebhart/patrepeval huggingface dataset:
A Parallel Streamline Simulator for Integrated Reservoir Modeling on a Desktop (2012)

Summary Desktop computing is undergoing a revolution with parallel processing on workstations. Parallel streamline simulators have been developed for shared memory architecture systems. In this paper, we discuss the implementation and performance analysis of a shared memory architecture commercial parallel streamline simulator based on native threading technology for both Windows® and Linux® operating systems. In general the streamline simulation algorithm is relatively straightforward to parallelize, however, there are several challenges that require special attention in order to avoid computing bottlenecks and inconsistent results. Repeatability of parallel simulation results is a well-known challenge. A data-accumulation scheduling algorithm designed to ensure repeatable results independent of the number of processing units has been implemented. The algorithm is supplemented by an efficient loadbalancing algorithm, to minimize processor idle time. Parallel scalability for various model characteristics and streamline solver options is analyzed. We have observed almost linear scalability up to 10 threads and a speed up factor of three to seven for simulation runs using a 1D explicit upwind finite difference solver to solve the transport problem along streamlines. The front tracking solver is inherently fast and does not gain significantly from parallelization. The run time of a serial simulation using the front-tracking solver is less than that of a parallel explicit solver run using up to 12 threads. The memory consumption of the front tracker is slightly higher than the explicit solver but overall streamline simulations are very memory efficient, enabling large geo-scale models to be simulated efficiently on 64-bit workstations. Complex three-phase blackoil simulation problems require a larger number of timesteps steps and speedup degrades as run time becomes dependent on the efficiency of the pressure solver. The results produced by our parallel streamline simulator are repeatable for any number of threads, and the algorithm used to achieve repeatability has little impact on performance.
Domain switching energies: Mechanical versus electrical loading in La-doped bismuth ferrite–lead titanate (2011)

The mechanical stress-induced domain switching and energy dissipation in morphotropic phase boundary (1−x)(Bi1 − yLay)FeO3–xPbTiO3 during uniaxial compressive loading have been investigated at three different temperatures. The strain obtained was found to decrease with increasing lanthanum content, although a sharp increase in strain was observed for compositions doped with 7.5 and 10 at. % La. Increased domain switching was found in compositions with decreased tetragonality. This is discussed in terms of the competing influences of the amount of domain switching and the spontaneous strain on the macroscopic behavior under external fields. Comparison of the mechanically and electrically dissipated energy showed significant differences, discussed in terms of the different microscopic interactions of electric field and stress.
Multi-sensor based glove control of an industrial mobile robot arm (2017)

In this paper, a multi-sensor glove controller is designed to control a mobile robot and a 6-axis robot arm for industrial operations. In order to implement safe working practices, the mobile robot arm is navigated by a glove controller wirelessly to perform several human tasks. By integrating the 6-axis robot arm, a mobile car, the StarGazer indoor positioning system, the user can monitor the situation in front of the mobile robot arm as well as record the trajectory and position coordinate, so that the functions of remote control is achieved. This makes it possible for people to complete the task without entering dangerous workplaces. On the data glove, there are various kinds of sensors and switch control modes, so that it can achieve the goal of operating and moving the mobile device simply and intuitively. The experiment results show the effectiveness when the mobile robot arm actually performs a human task.
Enhanced multiband excitation coding of speech at 2.4 Kb/s with discrete all-pole spectral modeling (2002)

This paper presents a high quality, low bit rate speech coder which applies an effective spectral modeling technique called discrete all-pole (DAP) modeling to efficiently represent speech spectra. The technique provides a fixed-dimension representation of the (pitch-dependent) variable dimension spectral shape vectors which arise in harmonic coders. Consequently, the spectral shapes are quantized more efficiently than with the usual linear prediction modeling, leading to better speech quality. We present a 2.4 kb/s speech coder, based on the multiband excitation (MBE) model and DAP modeling of the speech spectra, which delivers speech quality comparable to two standard higher rate coders: the 4.8 kb/s U.S. Federal Standard 1016 CELP coder and the 4.15 kb/s IMBE coder, adopted as the INMARSAT-M standard for satellite voice communications.
Double-crush nerve compression in thoracic-outlet syndrome. (1990)

We studied 165 cases of thoracic-outlet syndrome in 142 patients in whom resection of the first rib had been performed. In seventy-three cases (44 per cent), there was compression of a nerve distally, as shown by electromyography and conduction studies. The most common secondary compression was carpal tunnel syndrome (forty-one cases). Thirteen patients needed an operation at three sites or more. Our results show that proximal compression of a nerve lessens its ability to withstand more distal compression. Once the diagnosis of thoracic-outlet syndrome has been made, the possibility of an additional distal compression neuropathy should be investigated.
Convolution kernels with feature selection for natural language processing tasks (2004)

Convolution kernels, such as sequence and tree kernels, are advantageous for both the concept and accuracy of many natural language processing (NLP) tasks. Experiments have, however, shown that the over-fitting problem often arises when these kernels are used in NLP tasks. This paper discusses this issue of convolution kernels, and then proposes a new approach based on statistical feature selection that avoids this issue. To enable the proposed method to be executed efficiently, it is embedded into an original kernel calculation process by using sub-structure mining algorithms. Experiments are undertaken on real NLP tasks to confirm the problem with a conventional method and to compare its performance with that of the proposed method.
Advances in Automatic EBSP Single Orientation Measurements (1993)

A completely automated system which couples automatic analysis of electron backscatter diffraction patterns (EBSPs) with precise movement of the sample in the SEM is described. The Hough transform is implemented into an existing technique for identifying lattice orientation through automatic analysis of EBSPs. The ability of the Hough transform approach to correctly identify diffraction bands is quantitatively compared with the Burns algorithm. Both methods were tested on 1000 EBSPs from well annealed oxygen‐free, electrical grade (OFE) copper, 120 patterns from as‐cast commercially pure aluminum and 106 patterns from 40% channel‐die compressed aluminum. Only slight differences were found in the ability of the methods to correctly identify bands in the sample EBSPs. The three test runs resulted in 95‐99% (OFE Cu), 97.5‐99% (as‐cast AI) and 81‐85% (deformed AI) correctly determined orientations (less than 5° off the manually determined reference orientations). The limits in the ability of the band detection algorithms to fix the bands exactly are discussed. To obtain the orientation which satisfies the detected bands most completely, a method of averaging solutions obtained from different triplets of bands is introduced.
Patellofemoral Full-Thickness Chondral Defects Treated with Hyalograft-C (2006)

Biodegradable scaffolds seeded with autologous chondrocytes can be a viable treatment for chondral lesions. The type of tissue repair achieved demonstrated histologic characteristics similar to normal articular cartilage. Long-term investigations are needed to determine the durability of the repair produced with this technique.
Regulation of serum amyloid A protein expression during the acute-phase response (1998)

The acute-phase (AP) serum amyloid A proteins (A-SAA) are multifunctional apolipoproteins which are involved in cholesterol transport and metabolism, and in modulating numerous immunological responses during inflammation and the AP response to infection, trauma or stress. During the AP response the hepatic biosynthesis of A-SAA is up-regulated by pro-inflammatory cytokines, and circulating concentrations can increase by up to 1000-fold. Chronically elevated A-SAA concentrations are a prerequisite for the pathogenesis of secondary amyloidosis, a progressive and fatal disease characterized by the deposition in major organs of insoluble plaques composed principally of proteolytically cleaved A-SAA, and may also contribute to physiological processes that lead to atherosclerosis. There is therefore a requirement for both positive and negative control mechanisms that permit the rapid induction of A-SAA expression until it has fulfilled its host-protective function(s) and subsequently ensure that its expression can be rapidly returned to baseline. These mechanisms include modulation of promoter activity involving, for example, the inducer nuclear factor kappaB (NF-kappaB) and its inhibitor IkappaB, up-regulatory transcription factors of the nuclear factor for interleukin-6 (NF-IL6) family and transcriptional repressors such as yin and yang 1 (YY1). Post-transcriptional modulation involving changes in mRNA stability and translation efficiency permit further up- and down-regulatory control of A-SAA protein synthesis to be achieved. In the later stages of the AP response, A-SAA expression is effectively down-regulated via the increased production of cytokine antagonists such as the interleukin-1 receptor antagonist (IL-1Ra) and of soluble cytokine receptors, resulting in less signal transduction driven by pro-inflammatory cytokines.
Differential PSK detector ASIC design for direct sequence spread spectrum radio (2002)

In this paper we present an optimized architecture for differential PSK detection which effectively minimizes the required logic complexity for ASIC implementation. This complexity reduction is obtained by carrying out intelligent truncation of the detector input words and by utilizing a bit-serial/word-parallel structure. We also show that this can be done without degrading the performance in terms of bit error rate. The structure has been implemented in a direct sequence spread spectrum transceiver circuit, and preliminary measurement results are presented.
Amygdala-enriched genes identified by microarray technology are restricted to specific amygdaloid subnuclei (2001)

Microarray technology represents a potentially powerful method for identifying cell type- and regionally restricted genes expressed in the brain. Here we have combined a microarray analysis of differential gene expression among five selected brain regions, including the amygdala, cerebellum, hippocampus, olfactory bulb, and periaqueductal gray, with in situ hybridization. On average, 0.3% of the 34,000 genes interrogated were highly enriched in each of the five regions, relative to the others. In situ hybridization performed on a subset of amygdala-enriched genes confirmed in most cases the overall region-specificity predicted by the microarray data and identified additional sites of brain expression not examined on the microarrays. Strikingly, the majority of these genes exhibited boundaries of expression within the amygdala corresponding to cytoarchitectonically defined subnuclei. These results define a unique set of molecular markers for amygdaloid subnuclei and provide tools to genetically dissect their functional roles in different emotional behaviors.
Lipreadable frame animation driven by speech parameters (2002)

Two different approaches are here presented for converting speech into graphic animation, suitable to lipreading. Coarticulation modeling has been taken into account by means of an original algorithm for multistep statistical processing of digital speech in the cepstrum space. Two different visualization methods have been used, the first based on key reference pictures and the second based on a parametric flexible structure. Speech is converted, in real-time, into lipreadable visual animation by associating incoming acoustic frames with correspondent consistent graphic primitives, pictures or parameters, suitably visualized. Multiple fields of application are foreseen, mainly in rehabilitation, training, education and communication among hard of hearing people.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Sperm factors related to failure of human in-vitro fertilization (1986)

Two groups of men were retrospectively selected according to their observed success in in-vitro fertilization. Seminal and post-migration sperm samples from a low fertilization rate group (less than or equal to 33% cleaved embryos) have been compared to results obtained from a high fertilization rate group (greater than or equal to 66%). It was found that a low mean value of the amplitude of lateral sperm head displacement and an increased percentage of abnormal acrosomes were related to in-vitro fertilization failure. None of the individual sperm factors studied was found to determine in-vitro fertilization success with certainty; only when they were considered in combination was it possible to predict the likelihood of successful in-vitro fertilization of human oocytes.
Epidermal Regeneration by Micrograft Transplantation with Immediate 100-Fold Expansion (2012)

Minced skin micrografts are very effective in wound repair and can provide 100-fold expansion of a skin graft. Early clinical results confirm the utility of this technique.
InSb-MAOS Structure Fabricated by Anodization and Sputtering (1987)

A InSb-MAOS structure is fabricated by anodic oxidation and alumina sputtering. Effects of the thickness of the anodic oxide and thermal annealing on interface properties are described. The anodic oxide is not only an excellent gate insulator but also plays a buffer role in alumina sputtering. A thickness of 34 nm is minimum to avoid the sputtering damage. Any thermal annealing gives rise to a deterioration of interface properties, even at a low temperature of around 100°C. The InSb-MAOS structure fabricated with a low temperature process condition below 100°C shows stable C - V characteristics with small flat band voltage shift and low interface state densities.
Instantaneous polarization attributes based on an adaptive approximate covariance method (2006)

Abstract We introduce a method for computing instantaneous-polarization attributes from multicomponent signals. This is an improvement on the standard covariance method (SCM) because it does not depend on the window size used to compute the standard covariance matrix. We overcome the window-size problem by deriving an approximate analytical formula for the cross-energy matrix in which we automatically and adaptively determine the time window. The proposed method uses polarization analysis as applied to multicomponent seismic by waveform separation and filtering.
Drug delivery and targeting (1985)

Conventional forms of drugs normally medicate the whole body, reaching healthy areas as well as diseased. However techniques are now available which are better at restricting drug action to the sites where it is needed.
A cyclic [6,3,4] group code and the hexacode over GF(4) (1996)

A [6,3,4] code E/sub 6/ over an Abelian group A/sub 4/ with four elements is presented. E/sub 6/ is cyclic, unlike the [6,3,4] hexacode H/sub 6/ over GF(4). However, E/sub 6/ and H/sub 6/ are isomorphic when the latter is viewed as a group code. Differences and similarities between E/sub 6/ and H/sub 6/ are discussed. A dual code of E/sub 6/ is presented. Some binary codes, among them the [24,12,8] Golay, are derived with the aid of E/sub 6/. A related cyclic [4,2,3] code E/sub 4/* is applied to construct the Nordstrom-Robinson code. E/sub 6/ is the smallest member of a class of [2k,k,4] cyclic and reversible codes over A/sub 4/. Another class of cyclic and reversible codes of length 2l+1; l/spl ges/2 and minimum distance 3 over A/sub 4/ is also presented.
Biosynthesis of Phosphatidylcholine from a Phosphocholine Precursor Pool Derived from the Late Endosomal/Lysosomal Degradation of Sphingomyelin (2001)

Previous studies suggest that the steps of the CDP- choline pathway of phosphatidylcholine synthesis are tightly linked in a so-called metabolon. Evidence has been presented that only choline that enters cells through the choline transporter, and not phosphocholine administered to cells by membrane permeabilization, is incorporated into phosphatidylcholine. Here, we show that [(14)C]phosphocholine derived from the lysosomal degradation of [(14)C]choline-labeled sphingomyelin is incorporated as such into phosphatidylcholine in human and mouse fibroblasts. Low density lipoprotein receptor-mediated endocytosis was used to specifically direct [(14)C]sphingomyelin to the lysosomal degradation pathway. Free labeled choline was not found either intracellularly or in the medium, not even when the cells were energy-depleted. Deficiency of lysosomal acid phosphatases in mouse or alkaline phosphatase in human fibroblasts did not affect the incorporation of lysosomal [(14)C]sphingomyelin-derived [(14)C]phosphocholine into phosphatidylcholine, supporting our finding that phosphocholine is not degraded to choline prior to its incorporation into phosphatidylcholine. Inhibition studies and analysis of molecular species showed that exogenous [(3)H]choline and sphingomyelin-derived [(14)C]phosphocholine are incorporated into phosphatidylcholine via a common pathway of synthesis. Our findings provide evidence that, in fibroblasts, phosphocholine derived from sphingomyelin is transported out of the lysosome and subsequently incorporated into phosphatidylcholine without prior hydrolysis of phosphocholine to choline. The findings do not support the existence of a phosphatidylcholine synthesis metabolon in fibroblasts.
Optimal Load Scheduling of Plug-In Hybrid Electric Vehicles via Weight-Aggregation Multi-Objective Evolutionary Algorithms (2017)

In order to protect the environment and slow down global warming trend, many governments and environmentalists are keen at promoting the use of plug-in hybrid electric vehicles (PHEVs). As a result, more and more PHEVs have been put into use. However, load peak caused by their disordered charging can be detrimental to an entire power grid. Several methods have been proposed to establish ordered PHEV charging. While focusing on single-objective load scheduling, they fail to meet the real requirements that need one to conduct multiple objective optimization. This paper formulates a multi-objective load scheduling problem to minimize two competing objectives: 1) potential serious peak-to-valley difference and 2) economic loss. When we apply existing multi-objective evolutionary algorithms (MOEAs), i.e., multi-objective particle swarm optimization (MOPSO), Nondominated Sorting Genetic Algorithm II, MOEA based on decomposition, and multi-objective differential evolutionary algorithm to solve it, because its high dimension and special conditions we find that they fail to reach the Pareto Front or converge into a relatively small area only. Therefore, we propose a weight aggregation (WA) strategy and implement a novel MOEA algorithm named WA-MOPSO by incorporating WA into MOPSO to solve the problem. Its effectiveness and efficiency to generate a Pareto front of this problem are verified and compared with those of the state-of-the-art approaches. Furthermore, WA is also combined with other MOEAs to solve the defined scheduling problem.
Nonlinear Characterization of Fiber Optic Submarine Cables (2017)

We introduce a method to characterize the nonlinear properties of submarine cables. Based on the inverse back-to-back method and the GN model, the fiber effective area has been estimated with excellent accuracy in independent 9000km-QPSK and 3240km-16QAM experiments.
Synthesis of deoxyhalogeno sugars. Reaction of halide ions with 1,2,3,4-tetra-O-acetyl-6-O-[(trifluoromethyl)sulfonyl]-.beta.-D-glucopyranose (1983)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis of deoxyhalogeno sugars. Reaction of halide ions with 1,2,3,4-tetra-O-acetyl-6-O-[(trifluoromethyl)sulfonyl]-.beta.-D-glucopyranoseMichael G. Ambrose and Roger W. BinkleyCite this: J. Org. Chem. 1983, 48, 5, 674–677Publication Date (Print):March 1, 1983Publication History Published online1 May 2002Published inissue 1 March 1983https://pubs.acs.org/doi/10.1021/jo00153a011https://doi.org/10.1021/jo00153a011research-articleACS PublicationsRequest reuse permissionsArticle Views598Altmetric-Citations44LEARN 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
An automorphic approach to the design of fault-tolerant multiprocessors (2003)

A general and systematic approach to the design of fault-tolerant multiprocessors modeled by graphs is developed. The approach is based on graph automorphisms and is applicable to any graph structure and any degree of fault tolerance. In addition, it incorporates other useful design criteria such as incremental design, low redundancy, and efficient reconfigurability. The authors apply their approach directly to a class of regular multiprocessor graphs termed 'circulant'. For noncirculant graphs, they give an algorithm to construct their circulant edge supergraphs efficiently. They show that the automorphic design method is amenable to efficient implementation using switched redundant links. An application of the foregoing theory to the design of a fault-tolerant hypercube multiprocessor is described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>