gebhart/patrepeval huggingface dataset:
Probabilistic inference of human arm reaching target for effective human-robot collaboration (2017)

Allowing a cobot to predict what the human operator is about to do can definitely enhance the effectiveness of human-robot collaboration. This paper addresses the problem of inferring the most likely reaching target of the human hand. The method allows the robot to promptly recognise the intention of the human to reach a certain position within the scene and can be thus used by the controller of the robot to take the optimal decision on what to do. A novel method based on Bayesian statistics has been developed in this work and its applicability in a realistic context has been verified within an industrial use case, consisting of a commercial collaborative robot and a human operator performing a collaborative assembly task.
Workflow task clustering for best effort systems with Pegasus (2008)

Many scientific workflows are composed of fine computational granularity tasks, yet they are composed of thousands of them and are data intensive in nature, thus requiring resources such as the TeraGrid to execute efficiently. In order to improve the performance of such applications, we often employ task clustering techniques to increase the computational granularity of workflow tasks. The goal is to minimize the completion time of the workflow by reducing the impact of queue wait times. In this paper, we examine the performance impact of the clustering techniques using the Pegasus workflow management system. Experiments performed using an astronomy workflow on the NCSA TeraGrid cluster show that clustering can achieve a significant reduction in the workflow completion time (up to 97%).
Vertical interconnection for flip chip connection (2003)

In this paper we present computer simulations for vertical interconnections between a CPW transmission line and a CPW chip (CPW-CPW) using isotropic (ICA) and anisotropic (ACA) conductive adhesives. The location of the bumps in both types of adhesives is investigated for both interconnection types. Another structure is CPW-MS transition in which the active surface is turned upwards from the CPW board. The design of the circuit in this case is greatly facilitated - this configuration only needs one via-hole for each connection.
Multi-Item Inventory Systems with a Service Objective (1988)

In this paper, we examine the problem of specifying single-item service objectives in a multi-item inventory system subject to a system wide service level constraint. We develop a computationally efficient algorithm, the Generalized Knapsack Duality (GKD) Algorithm, to find approximately optimal policies for such a system. Our computational experience with inventory systems, typical of many found in the real world, indicates that operating costs can be reduced significantly when this model is used rather than the simpler uniform service model often used in practice.
Nucleosides. VI. The Introduction of Unsaturation into the Carbohydrate of a Pyrimidine Nucleoside <i>via</i> a 2,3′-Anhydro Bond (1964)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNucleosides. VI. The Introduction of Unsaturation into the Carbohydrate of a Pyrimidine Nucleoside via a 2,3′-Anhydro BondJerome P. Horwitz, Jonathan. Chua, Irwin L. Klundt, Margaret A. DaRooge, and Michael. NoelCite this: J. Am. Chem. Soc. 1964, 86, 9, 1896–1897Publication Date (Print):May 5, 1964Publication History Published online1 May 2002Published inissue 5 May 1964https://pubs.acs.org/doi/10.1021/ja01063a080https://doi.org/10.1021/ja01063a080research-articleACS PublicationsRequest reuse permissionsArticle Views87Altmetric-Citations26LEARN 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
Applications of digital fingerprinting and digital watermarking for E-commerce security mechanism (2008)

In this paper, a new security system in electronic commerce based on PKI and extended by digital fingerprinting and digital watermarking is proposed. The security system can effective protect the data security of electronic commerce. The whole security system integrates three parts’ strongpoint and forms its own good qualities, so it has very high level security and can suit for the complicated applications of electronic commerce.
Recognition Strategies of Group 3 Innate Lymphoid Cells (2014)

During the early phase of an inflammatory response, innate cells can use different strategies to sense environmental danger. These include the direct interaction of specific activating receptors with pathogen-encoded/danger molecules or the engagement of cytokine receptors by pro-inflammatory mediators produced by antigen presenting cells in the course of the infection. These general recognition strategies, which have been extensively described for innate myeloid cells, are shared by innate lymphoid cells (ILC), such as Natural Killer (NK) cells. The family of ILC has recently expanded with the discovery of group 2 (ILC2) and group 3 ILC (ILC3), which play an important role in the defense against extracellular pathogens. Although ILC3 and NK cells share some phenotypic characteristics, the recognition strategies employed by the various ILC3 subsets have been only partially characterized. In this review, we will describe and comparatively discuss how ILC3 sense environmental cues and how the triggering of different receptors may regulate their functional behavior during an immune response.
A Robust and Fast Video Copy Detection System Using Content-Based Fingerprinting (2010)

A video copy detection system that is based on content fingerprinting and can be used for video indexing and copyright applications is proposed. The system relies on a fingerprint extraction algorithm followed by a fast approximate search algorithm. The fingerprint extraction algorithm extracts compact content-based signatures from special images constructed from the video. Each such image represents a short segment of the video and contains temporal as well as spatial information about the video segment. These images are denoted by temporally informative representative images. To find whether a query video (or a part of it) is copied from a video in a video database, the fingerprints of all the videos in the database are extracted and stored in advance. The search algorithm searches the stored fingerprints to find close enough matches for the fingerprints of the query video. The proposed fast approximate search algorithm facilitates the online application of the system to a large video database of tens of millions of fingerprints, so that a match (if it exists) is found in a few seconds. The proposed system is tested on a database of 200 videos in the presence of different types of distortions such as noise, changes in brightness/contrast, frame loss, shift, rotation, and time shift. It yields a high average true positive rate of 97.6% and a low average false positive rate of 1.0%. These results emphasize the robustness and discrimination properties of the proposed copy detection system. As security of a fingerprinting system is important for certain applications such as copyright protections, a secure version of the system is also presented.
Small molecule modulation of stem cells in regenerative medicine: recent applications and future direction (2010)

Regenerative medicine research is focussed on the discovery of novel therapies (small molecules, biologics or cells) that restore function in damaged or aging tissues and organs. The field is underpinned by developments in stem cell science and the modulation of stem cells using small molecules is now providing unique insights into stem cell regulation and developmental biology. It has been shown that small molecules can be used to help drive somatic cell reprogramming, maintain induced pluripotent states and also directly control lineage specification and proliferation events. Small molecules have the potential to help enable the development of viable cell therapies and small molecule oral drugs can be envisaged that can control endogenous cell populations to support regeneration. This review seeks to illustrate the key role small molecules have to play in modulation of stem cells for regenerative medicine and describes some future potential directions in the field.
Stereo Light Probe (2008)

Abstract In this paper we present a practical, simple and robust method to acquire the spatially‐varying illumination of a real‐world scene. The basic idea of the proposed method is to acquire the radiance distribution of the scene using high‐dynamic range images of two reflective balls. The use of two light probes instead of a single one allows to estimate, not only the direction and intensity of the light sources, but also the actual position in space of the light sources. To robustly achieve this goal we first rectify the two input spherical images, then, using a region‐based stereo matching algorithm, we establish correspondences and compute the position of each light. The radiance distribution so obtained can be used for augmented reality applications, photo‐realistic rendering and accurate reflectance properties estimation. The accuracy and the effectiveness of the method have been tested by measuring the computed light position and rendering synthetic version of a real object in the same scene. The comparison with standard method that uses a simple spherical lighting environment is also shown.
Analysis of Seed Protein and Oil from Soybean Northern and Southern Region Uniform Tests (2002)

Protein and oil concentration are seed constituents that make soybean [ Glycine max (L.) Merr.] an important crop. Reports have been published that the oil concentration and recently the protein concentration of U.S. soybean has been decreasing with respect to other exporting countries. The objective of this study was to utilize 51 yr of two data sets, The Uniform Soybean Tests, Northern Region and Southern Region to determine long‐term trends in these constituents. Oil and protein composition data of lines from Regional Summaries of Maturity Groups OO through VIII were used for the analysis. Mean oil concentration was higher in the Southern Region compared with the Northern Region (209 and 206 g kg −1 , respectively), as was protein concentration (411 and 407 g kg −1 , respectively). Maturity group means for oil and protein concentration ranged from 198 to 212 g kg −1 and 404 to 414 g kg −1 , respectively. Oil concentration increased in both data sets to 1973 and abruptly decreased in 1974 (21 g kg −1 ) to a low in 1982 (184 g kg −1 ) to higher than average values in 1983 (217 g kg −1 ) and by linear regression analysis, decreasing in the Northern Region since then. Analysis of lines evaluated from 1973 to 1974 and from 1982 to 1983 indicated that genetics was not the cause of the change in oil concentrations. Temporal protein concentrations were not as distinct as those of oil but indicated groups of years when protein concentration was above or below the mean. The data indicate that oil concentrations of soybean has been erratic and decreasing since 1974 because of unknown factors.
Tissue-specific Expression of Rat Neutral Endopeptidase (Neprilysin) mRNAs (1995)

Neutral endopeptidase is a cell surface zinc metal-lopeptidase that regulates the action of a variety of physiologically active peptides. The enzyme exhibits a wide tissue distribution, being most abundant in kidney and lung. Three rat neutral endopeptidase cDNAs with unique 5'-untranslated sequences were isolated. Distribution of the corresponding mRNAs in rat tissues was analyzed by RNase protection assays and by in situ hybridization. In kidney, the type 2b transcript was the major species. In lung and testis, type 1 and type 2b transcripts were expressed in approximately equal amounts, while in brain and spinal cord the type 1 mRNA was the major transcript. These findings were extended by in situ hybridization studies. All three mRNAs were expressed in the proximal tubule of the kidney, with the type 2b transcript giving the strongest signal. In the frontoparietal cortex, expression of the neutral endopeptidase mRNA subtypes was cell- and region-specific. The type 1 transcript was localized to neurons, type 2b mRNA was not detectable, while type 3 mRNA was localized to the oligodendrocytes of the corpus callosum. These results clearly demonstrate that expression of the three neutral endopeptidase mRNAs can be regulated in a cell-specific manner.
New insights towards understanding the mechanisms of sperm protection by egg yolk and milk (2006)

Mammalian sperm preservation in extenders containing egg yolk (EY) and/or milk has been used for over half a century. However, the mechanism by which EY or milk protects sperm during storage remains elusive. Studies conducted over the past two decades in our laboratory have revealed that a family of lipid-binding proteins (BSP proteins) present in bull seminal plasma is detrimental to sperm preservation since these proteins induce cholesterol and phospholipid removal from the sperm membrane. Interestingly, these detrimental factors of seminal plasma interact with the low-density lipoproteins (LDL) present in EY. This interaction minimizes lipid removal from the sperm membrane, which positively influences sperm storage in liquid or frozen states. Based on several lines of evidence, we suggest that the sequestration of BSP proteins by LDL (BSP proteins: lipoprotein interaction) is the major mechanism of sperm protection by EY. Skimmed milk, which is devoid of lipoproteins, also protects sperm during storage. Several studies indicate that the active components involved in sperm protection by milk are casein micelles. Thus, it appears that the mechanism by which milk protects sperm involves a BSP protein: casein micelle interaction. In view of these new insights, novel strategies have been suggested to improve the efficiency of semen preservation.
Hybrid rf SQUID qubit based on high kinetic inductance (2018)

We report development and microwave characterization of rf SQUID (Superconducting QUantum Interference Device) qubits, consisting of an aluminium-based Josephson junction embedded in a superconducting loop patterned from a thin film of TiN with high kinetic inductance. Here we demonstrate that the systems can offer small physical size, high anharmonicity, and small scatter of device parameters. The work constitutes a non-tunable prototype realization of an rf SQUID qubit built on the kinetic inductance of a superconducting nanowire, proposed in Phys. Rev. Lett. 104, 027002 (2010). The hybrid devices can be utilized as tools to shed further light onto the origin of film dissipation and decoherence in phase-slip nanowire qubits, patterned entirely from disordered superconducting films.
Inhibition of 7,12-dimethylbenz(a)anthracene- and N-nitrosomethylurea-induced rat mammary cancer by dietary flavonol quercetin. (1988)

The effects of dietary supplementation of flavonol quercetin on both 7,12-dimethylbenz(a)anthracene (DMBA)- and N-nitrosomethylurea-induced mammary cancer in female Sprague-Dawley rats were determined. Quercetin diet was started 1 wk before intragastric instillation of DMBA (65 mg/kg of body weight) or i.v. injection of N-nitrosomethylurea (50 mg/kg of body weight) and was continued during the entire period (20 wk) of the experiment. Dietary quercetin inhibited both the incidence and the number of palpable rat mammary tumors; rats fed on 2% quercetin had 25% less incidence of mammary cancer, while the average number of mammary tumors per rat was reduced by 39% at 20 wk post-DMBA administration compared to animals on a control diet. In a separate experiment, a 5% quercetin diet elicited a greater inhibitory effect on the induction of rat mammary tumors by DMBA than was observed with a 2% quercetin diet. The inhibitory effect of quercetin on mammary tumor incidence in rats on 2% and 5% diets and on tumor multiplicity in animals on a 5% diet was statistically significant (P less than 0.05). In addition, the risk of the development of a palpable tumor (as determined by the nonparametric estimate of the hazard function) in the quercetin-fed group was lower than the group on control diet throughout the course of the experiment. Furthermore, 5% dietary quercetin significantly inhibited (P less than 0.05), although to a lesser extent than observed in DMBA-induced tumor formation, both the incidence and the number of palpable mammary tumors per rat induced by N-nitrosomethylurea. Dietary quercetin did not elicit any detectable sign of toxicity. The gain in body weight in rats on the quercetin diet and the quantity of diet consumed per rat per week were similar to those for rats on the control diet.
Studies on Palladium Membrane Reactor for Dehydrogenation Reaction (1990)

Abstract In current industrial practice dehydrogenation reactions require high temperatures and large amounts of inert (usually steam). Membrane reactors can be used to shift the equilibrium for these reversible reactions by removing products from the reaction zone. In this paper, experimental results will be presented for a palladium reactor system designed to investigate the feasibility of using palladium (Pd) alloy as the membrane material. Experiments have been conducted for isothermal and adiabatic conditions with air on the permeation side, wherein the oxygen reacts exothermically with the permeating hydrogen to decrease its partial pressure, thereby increasing its flux, and provide heat for the endothermic dehydrogenation reaction. Both theoretical and experimental results have been presented for dehydrogenation of 1-butene.
A Numerical Optimization Method for Transducer Transfer Functions by the Linearity of the Phase Spectrum (2018)

New ultrasound imaging and therapeutic modalities may require transducer designs that are not readily facilitated by conventional design guidelines and analytical expressions. This motivates the investigation of numerical methods for complex transducer structures. Based on a mathematical theorem, we propose a new numerical design and optimization method for ultrasound transducers by linearizing the phase spectrum of transducer transfer functions. A gradient-based algorithm obtains the optimal transducer by varying a selected set of transducer parameters. To demonstrate the linear phase method, a simulated air-backed 4-MHz single-element imaging transducer with two matching layers, bondlines, and electrodes is optimized by varying the impedances and thicknesses of the matching layers. The magnitude spectrum resembles that of a Gaussian and, compared to a conventional transducer, the time-sidelobe level is reduced by more than 15-dB. Moreover, we apply the linear phase method to analyze and compensate for bondlines that resonate within the passband. Finally, we address the challenge of obtaining materials for the matching layers with the optimized impedance values by calculating alternative material pairs.
An array-based study of reactivity under solvent-free mechanochemical conditions—insights and trends (2008)

An array-based approach is put forward to obtain insight into reactivity under mechanochemical solvent-free conditions. We describe a survey of sixty potential reactions between twelve metal salts MX2 {(M = Cu, X2 = (OAc)2, (HCO2)2, (F3CCO2)2, (acac)2, (F6acac)2, (NO3)2, SO4; M = Ni, X2 = (OAc)2, (NO3)2, SO4; M = Zn, X2 = (OAc)2, (NO3)2} and five bridging organic ligands {isonicotinic acid (HINA), 1,4-benzenedicarboxylic acid (H2BDC), acetylenedicarboxylic acid (H2ADC), 1,3,5-benzenetricarboxylic acid (H3BTC), 4,4′-bipyridyl (BIPY). Reaction conditions involved a ball mill, applied for 15 min at 30 Hz, without external heating. When examined by XRPD, forty of the combinations gave detectable reactions, thirty-eight with crystalline products. Of these, twenty-nine reactions were quantitative (consuming all of at least one reactant). Comparison of XRPD patterns with patterns simulated from single crystal X-ray diffraction data in the Cambridge Structural Database allowed structural identification of six products. Of particular interest are the microporous framework materials [Cu(INA)2] and [Cu3(BTC)2] (HKUST-1) obtained by reaction of the corresponding carboxylic acids with copper acetate. Other non-porous polymers with 3-dimensional connectivity, [Ni(ADC)(H2O)4], or 1-dimensional connectivity, [Cu(acac)2(BIPY)] and [Cu(F6acac)(BIPY)] were also obtained. Reaction between zinc acetate and H2ADC gave a new product which had not previously been characterised by single-crystal X-ray crystallography, but whose XRPD pattern suggests that it is isostructural with the known nickel polymer [Ni(ADC)(H2O)4]. Two further isostructural nickel and zinc products were obtained in reactions between HINA and nickel nitrate and zinc nitrate. Trends observed within the array are discussed. Copper acetate and copper formate were the most effective starting materials for reaction with carboxylic acids, potentially related to the basicity of their anions and the solvating effects of the formic and acetic acid byproducts. Amongst the ligands there was a general negative corelation between melting point and reactivity. The issue of pore templating in microporous phases and the generation of new structures is also discussed in relation to the Cu(INA)2, Cu3(BTC)2 and nickel nitrate-BIPY systems. Overall, the study suggests that mechanochemical reactivity between metal salts and organic ligands under solvent free conditions is remarkably general. Use of array-based approaches as demonstrated here is advocated a useful way to reveal underlying trends in reactivity under solvent free mechanochemical conditions and to highlight particular cases for more detailed study.
A software controlled voltage tuning system using multi-purpose ring oscillators (2015)

This paper presents a novel software driven voltage tuning method that utilises multi-purpose Ring Oscillators (ROs) to provide process variation and environment sensitive energy reductions. The proposed technique enables voltage tuning based on the observed frequency of the ROs, taken as a representation of the device speed and used to estimate a safe minimum operating voltage at a given core frequency. A conservative linear relationship between RO frequency and silicon speed is used to approximate the critical path of the processor. Using a multi-purpose RO not specifically implemented for critical path characterisation is a unique approach to voltage tuning. The parameters governing the relationship between RO and silicon speed are obtained through the testing of a sample of processors from different wafer regions. These parameters can then be used on all devices of that model. The tuning method and software control framework is demonstrated on a sample of XMOS XS1-U8A-64 embedded microprocessors, yielding a dynamic power saving of up to 25% with no performance reduction and no negative impact on the real-time constraints of the embedded software running on the processor.