gebhart/patrepeval huggingface dataset:
Dense P/M Component Produced by Solid Freeform Fabrication (SFF) (2005)

Using fine metal powders, we were able to fabricate dense P/M (powder metallurgy) products by a three-dimensional inkjet printing system. We used carbonyl nickel powder with a mean particle size of 5 μm as a raw material and examined two binder supply methods: (i) supplying a binder directly from the inkjet head (DB method), and (ii) coating the powder with a water-soluble polymer and then supplying thin polymer-dissolved water from the inkjet head (CB method). The layered green product was sintered in a hydrogen atmosphere at a temperature in the range of 1073–1623 K. Sintered samples fabricated by the CB method had non-uniform microstructure due to agglomeration of the coated powder. In samples made by the DB method, the macroscopic shape was retained after high-temperature sintering at 1623 K, and a high density of over 90% was achieved, which was attributed to uniform powder cohesion in the laminating process.
Chemistry of organosilicon compounds. 95. .eta.3-1-Silapropenyltricarbonyliron complexes. The first stable compound of doubly bonded silicon (1976)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTChemistry of organosilicon compounds. 95. .eta.3-1-Silapropenyltricarbonyliron complexes. The first stable compound of doubly bonded siliconHideki Sakurai, Yoshiyasu Kamiyama, and Yasuhiro NakadairaCite this: J. Am. Chem. Soc. 1976, 98, 23, 7453–7454Publication Date (Print):October 1, 1976Publication History Published online1 May 2002Published inissue 1 October 1976https://pubs.acs.org/doi/10.1021/ja00439a073https://doi.org/10.1021/ja00439a073research-articleACS PublicationsRequest reuse permissionsArticle Views110Altmetric-Citations29LEARN 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
Dyeing and Printing Polyester and Polyester‐Cellulosic Fabrics with Polyestren Dyes (1961)

Polyester and polyester—cellulosie fabrics can be dyed and printed with a range of vat dyes specially selected and processed for the purpose. The application and properties of these Polyestren dyes are discussed, and compared with those of other dyes suitable for dyeing these fabrics.
Differential properties of tetrodotoxin-sensitive and tetrodotoxin- resistant sodium channels in rat dorsal root ganglion neurons (1992)

TTX-sensitive (TTX-S) and TTX-resistant (TTX-R) sodium channel currents were analyzed in acutely dissociated dorsal root ganglion (DRG) neurons isolated from 3-12-d-old and adult rats. Currents were recorded using the whole-cell patch-clamp technique. TTX-R current was more likely to be present in younger animals (3-7 d), whereas TTX-S current was more common in older animals (7-10 d), although TTX-R current was recorded from adult rat DRG neurons. The TTX-R and TTX-S currents differed in their steady-state inactivation, with 50% inactivation voltage at -40 +/- 5 mV (n = 10) for TTX-R currents and -70 +/- 4 mV (n = 10) for TTX-S currents. These current types also differed in their activation kinetics, with 50% activation values of -15 +/- 5 mV (n = 5) for TTX-R currents and -26 +/- 6 mV (n = 5) for TTX-S currents. The interactions of TTX-R and TTX-S channels with various pharmacological agents and divalent cations were studied. The Kd values for TTX-S and TTX-R currents were estimated to be 0.3 nM and 100 microM for TTX, 0.5 nM and 10 microM for saxitoxin, and 50 microM and 200 microM for lidocaine, respectively. TTX-S channels did not exhibit a marked use-dependent block by lidocaine, whereas lidocaine significantly decreased TTX-R current in a use-dependent manner at frequencies ranging from 1 to 33.3 Hz. Several external divalent cations exerted different effects on these current types.(ABSTRACT TRUNCATED AT 250 WORDS)
Protective coatings for columbium applied in the field. (1971)

The various aspects of field repair of columbium alloy panels with protective coatings designed as part of the Space Shuttle thermal protection system are examined. The field repair of the coatings is accomplished by employing ceramic cement repairs, and reapplying the fused slurry silicide coating. Techniques are described which improve the practicality of these repairs by employing torch heating. The repair coating quality is demonstrated by testing which simulates flight temperature, pressure, stress and acoustic vibration conditions as a function of time. Conclusions on the present status of field repair coatings are presented and recommendations are given for appropriate future activities relative to the use on an operational Space Shuttle system.
Bubble Columns (2010)

Abstract The article contains sections titled: 1. Introduction 2. Bubble Columns 2.1. Design and Applications 2.2. Gas Distribution 2.3. Flow Regimes 2.4. Bubble Size 2.5. Bubble Rise Velocity 2.6. Axial Dispersion 2.7. Gas Holdup 2.8. Specific Interfacial Area 2.9. Mass Transfer 2.10. Heat Transfer 2.11. Fluid Dynamics 3. Airlift Loop Reactors 3.1. Design and Applications 3.2. Mixing Behavior and Fluid Dynamics 3.3. Gas Holdup 3.4. Mass Transfer and Mixing 3.5. Heat Transfer 3.6. Computational Fluid Dynamics
Real-time programming safety in Java and Ada (2003)

Both Java and the Real-time Specification for Java contain concurrency-related constructs that are easily abused or simply misunderstood by a programmer without sufficient knowledge of multi-threading. This article lists a number of those constructs and shows how they are avoided in Ada. Many of the mistakes arise when a programmer confuses exclusion synchronization and condition synchronization. The article opens with an explanation of those concepts.
Machine Learning-based Classification System for Building Information Models (2020)

Building Information Modeling (BIM) provides information regarding a building in digital format for the comprehensive building life cycle, which comprises building design, construction, and operation. Compared to traditional manual processes, which are based mainly on 2D drawings, BIM has a huge potential to reduce time and costs, and increase efficiency. The concept of classifications in BIM is particularly crucial throughout the life cycle of BIM since it gives structure to the data and helps users analyze different parts of the building model. Despite its importance, only a few BIM tools offer accurate handling of classifications but still with great limitations. They require human expertise and effort for manually assigning the right categories or defining classification rules for assigning the categories. The main objective of this thesis is to improve upon the conventional and largely manual approach to element classifications by utilizing rich data in BIM. To achieve this, three different types of information, which are numeric sizes, textual descriptions, and 3D shape, are extracted from elements in the BIM model. To process this information, a classification model, which concatenates outputs from a convolutional neural network and a fully connected neural network, is trained. Furthermore, the study defines metrics for measuring the quality of the data and examines their relationship with system performance. Moreover, the prototype of the classification system is deployed to a cloud environment to investigate the impact of system configuration on the performance. The results of the experiments empirically prove that a data-driven approach using the rich information of BIM enables automatic classification using machine learning. Experiments on different system configurations show that additional computing resources improve processing time with a trade-off of cost. Analysis of the quality of data and time-accuracy trade-off offers an insight into the optimal data selection and system configuration with practical examples. Finally, this study illustrates the potential of machine learning for improving the BIM classification tools that can be integrated into existing BIM tools.
Software-defined radar for MIMO and adaptive waveform applications (2010)

The development of a software-defined radar testbed is described. The testbed is to be used to explore advanced techniques such as multiple-input multiple-output radar and adaptive waveforms. The system features a fully programmable, dual-channel, arbitrary pulsed waveform generator with a quadrature downconverting receiver. The system can generate waveforms of up to 500 MHz instantaneous bandwidth at a center frequency tunable from 2-18 GHz. The RF front end features two independent transmit and receive channels that can be multiplexed between four dual-polarized transmit and four dual-polarized receive antennas.
Les langues vivantes et la culture moderne (1909)

Chemin . Les langues vivantes et la culture moderne. In: La revue pédagogique, tome 54, Janvier-Juin 1909. pp. 133-139.
Generalization of the Classical Method for Calculating Dynamic Hysteresis Loops in Grain-Oriented Electrical Steels (2008)

We have studied the ability of two one-dimensional (1-D) time-stepping models, both based on the concept of magnetic viscosity, to reproduce dynamic loops and losses in grain-oriented (GO) electrical steels under arbitrary magnetization regimes. We found that GO steels (0.3 mm thick) can be modeled quite accurately at magnetizing frequencies up to 200 Hz by a thin sheet representation, which is applied to a bulk material. At higher frequencies, acceptable results can be obtained through a finite-difference solver of a 1-D penetration equation whose applicability to GO steels can be explained in terms of domain wall bowing. Because of the inertial effect introduced by the magnetic viscosity, the average error in the loss prediction is reduced from 40% for the conventional classical method to 5% for the methods we studied. We demonstrated the accuracy of the models using two GO steels whose losses and B-H characteristics were measured by computer-controlled Epstein and single-sheet testers.
Efficient region-based motion estimation and symmetry oriented segmentation for image sequence coding (1994)

In the paper an efficient coding system for very low bit rates is presented. It is characterized by three operating modes. The intraframe mode combines image segmentation and an efficient luminance representation focalized on the concept of symmetry. The motion compensated mode is based on an adaptive motion representation which provides a good trade-off between the cost of parameter transmission and the quality of prediction. The obtained motion vector field is used for the reconstruction in the predicted mode. Experimental results are given on four test sequences. Simulations show good performance of the coding system both in terms of PSNR and bitrate. In particular, experiments show that the system is capable of working at around 24 kbit/sec with good quality for head-and-shoulder sequences. With more complex sequences, 50 kbit/sec are reached with acceptable degradation of the reconstructed images.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Advances in understanding bone cancer pain (2005)

Experimental animal models of bone cancer pain have emerged and findings have provided a unique glimpse into unraveling the mechanism that drives this debilitating condition. Key contributors to the generation and maintenance of bone cancer pain are tumor-induced osteolysis, tumor itself, and production of nociceptive mediators in the bone-tumor microenvironment.
Hydrogen Sulfide Deactivates Common Nitrobenzofurazan-Based Fluorescent Thiol Labeling Reagents (2014)

Sulfhydryl-containing compounds, including thiols and hydrogen sulfide (H2S), play important but differential roles in biological structure and function. One major challenge in separating the biological roles of thiols and H2S is developing tools to effectively separate the reactivity of these sulfhydryl-containing compounds. To address this challenge, we report the differential responses of common electrophilic fluorescent thiol labeling reagents, including nitrobenzofurazan-based scaffolds, maleimides, alkylating agents, and electrophilic aldehydes, toward cysteine and H2S. Although H2S reacted with all of the investigated scaffolds, the photophysical response to each scaffold was significantly different. Maleimide-based, alkylating, and aldehydic thiol labeling reagents provided a diminished fluorescence response when treated with H2S. By contrast, nitrobenzofurazan-based labeling reagents were deactivated by H2S addition. Furthermore, the addition of H2S to thiol-activated nitrobenzofurazan-based reagents reduced the fluorescence signal, thus establishing the incompatibility of nitrobenzofurazan-based thiol labeling reagents in the presence of H2S. Taken together, these studies highlight the differential reactivity of thiols and H2S toward common thiol-labeling reagents and suggest that sufficient care must be taken when labeling or measuring thiols in cellular environments that produce H2S due to the potential for both false-positive and eroded responses.
Polymer Pen Lithography Using Dual‐Elastomer Tip Arrays (2012)

Dual-elastomer tip arrays are developed as a simple and cost-effective approach to significantly improve the uniformity and precision of polymer pen lithography (PPL). Both experiment and mechanical simulation demonstrate that the hard-apex, soft-base tip structure of the dual-elastomer tip array leads to precise control of feature size and reduced variation among different tips over large areas through fine control of the tip deformation. The dual-elastomer tip array is believed to be readily applied to fabricate nano- and microstructures for fundamental study and applications such as bioassays, sensors, optical and electronic devices.
El Consejo Europeo de junio de 2007 y la revisión de los Tratados constitutivos (2007)

El Consejo Europeo que tuvo lugar los dias 21 y 22 de junio de 2007 ha activado el proceso de la revision de los tratados constitutivos. Despues de dos anos de paralisis tras el voto negativo de los referenda celebrados en Francia y los Paises Bajos, se retoma de nuevo el proceso de revision de los tratados constitutivos. Se aborda la reforma utilizando el procedimiento habitual, el previsto en los Tratados constitutivos; esto es, mediante la convocatoria de una conferencia intergubernamental de los representantes de los Gobiernos de los Estados miembros. Se emprende tambien rapidamente, con un calendario programado que debiera iniciarse, como asi ha sido, y finalizar durante el mandato de la presidencia portuguesa: apertura de la Conferencia intergubernamental el 23 de julio de 2007 con terminacion de las negociaciones el 18 de octubre del mismo ano, para poder firmar el tratado de revision en los dias 8 y 9 de diciembre con motivo de la celebracion de la segunda reunion de Jefes de Estado y de Gobierno de la Union Europea y de Africa. Ello, si no surgen contingencias, en forma de negativas de los Estados miembros en vincularse, deberia dar tiempo suficiente para que los Estados miembros pudieran manifestar su consentimiento en quedar obligados por los nuevos Tratados antes de las proximas elecciones al Parlamento Europeo de junio de 2009. Debe senalarse, como es conocido, y sin llamar al mal tiempo, que las contingencias suelen ser habituales en las ultimas revisiones de los Tratados constitutivos (Dinamarca en el Tratado de Maastricht, Irlanda en el Tratado de Niza, o Francia y Paises Bajos...).
The Retro‐Hydroformylation Reaction (2015)

Hydroformylation, a reaction that adds carbon monoxide and dihydrogen across an unsaturated carbon-carbon multiple bond, has been widely employed in the chemical industry since its discovery in 1938. In contrast, the reverse reaction, retro-hydroformylation, has seldom been studied. The retro-hydroformylation reaction of an aldehyde into an alkene and synthesis gas (a mixture of carbon monoxide and dihydrogen) in the presence of a cyclopentadienyl iridium catalyst is now reported. Aliphatic aldehydes were converted into the corresponding alkenes in up to 91% yield with concomitant release of carbon monoxide and dihydrogen. Mechanistic control experiments indicated that the reaction proceeds by retro-hydroformylation and not by a sequential decarbonylation-dehydrogenation or dehydrogenation-decarbonylation process.
Hydrocellulose Water Flow Number (1953)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrocellulose Water Flow NumberO. A. Battista, J. A. Howsmon, and Sydney CoppickCite this: Ind. Eng. Chem. 1953, 45, 9, 2107–2112Publication Date (Print):September 1, 1953Publication History Published online1 May 2002Published inissue 1 September 1953https://pubs.acs.org/doi/10.1021/ie50525a050https://doi.org/10.1021/ie50525a050research-articleACS PublicationsRequest reuse permissionsArticle Views17Altmetric-Citations-LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access options Get e-Alerts
Formalisation et garantie de propriétés de sécurité système : application à la détection d'intrusions (2007)

In this thesis, we are interested in the guaranty of the properties of integrity and confidentiality of an information system. We first of all propose a language of description of the system activities used as a basis for the definition of a set of security properties. This language rests on a notion of causal dependence between system calls and on operators of correlation. Thanks to this language, we can define all the system security properties classically met in the literature, extend these properties and propose news of them. In order to guaranty the respect of these properties, an implementation of this language is presented. We prove that this implementation captures all the dependences perceptible by a system. This method thus makes it possible to enumerate the whole of the possible violations of the properties expressed by our language. Our solution exploits the definition of an access control policy in order to compute various graphs. These graphs contain the terminals of the language and make it possible to guaranty the respect of the properties. We then use this method to provide a system of detection of intrusions which detects the effective violations of the properties. The tool can re-use the access control policies available for various target systems DAC (Windows, Linux) or MAC such as SELinux and grsecurity. This tool was tested on a honeypot during several months and makes it possible to detect the violations of the desired properties.
IL-7 exacerbates chronic colitis with expansion of memory IL-7R<sup>high</sup>CD4<sup>+</sup>mucosal T cells in mice (2004)

We have previously demonstrated that mucosal CD4(+) T cells expressing high levels of IL-7 receptor (IL-7R(high)) are pathogenic cells responsible for chronic colitis. Here we investigate whether IL-7 is directly involved in the expansion of IL-7R(high) memory CD4(+) mucosal T cells and the exacerbation of colitis. We first showed that CD4(+) lamina propria lymphocytes (LPLs) from wild-type, T cell receptor-alpha-deficient (TCR-alpha(-/-)), and recombinase-activating gene (RAG)-2(-/-)-transferred mice with or without colitis showed phenotypes of memory cells, but only CD4(+) LPLs from colitic mice showed IL-7R(high). In vitro stimulation by IL-7, but not by IL-15 and thymic stromal lymphopoietin, enhanced significant proliferative responses and survival of colitic CD4(+), but not normal CD4(+) LPLs. Importantly, in vivo administration of IL-7 mice accelerated the expansion of IL-7R(high) memory CD4(+) LPLs and thereby exacerbated chronic colitis in RAG-2(-/-) mice transferred with CD4(+) LPLs from colitic TCR-alpha(-/-) mice. Conversely, the administration of anti-IL-7R monoclonal antibody significantly inhibited the development of TCR-alpha(-/-) colitis with decreased expansion of CD4(+) LPLs. Collectively, the present data indicate that IL-7 is essential for the expansion of pathogenic memory CD4(+) T cells under pathological conditions. Therefore, therapeutic approaches targeting the IL-7R pathway may be feasible in the treatment of human inflammatory bowel disease.
ELECTROCHEMICAL CHLORIDE REMOVAL AND PROTECTION OF CONCRETE BRIDGE COMPONENTS (INJECTION OF SYNERGISTIC CORROSION INHIBITORS) (1990)

This is a feasibility study of the injection of synergistic corrosion inhibitors for protection of concrete bridge components. The research developed electrically injectable corrosion inhibitors that provide 78-85% corrosion protection for the rebars. This technology can be further improved to provide 90-100% corrosion protection for rebar steel. Inhibitor injection requires approximately 1,000 times higher current densities than those used for cathodic protection. An advantage of this technique is that the equipment required is similar to that used in cathodic protection, and hence, is familiar to highway bridge engineers. However, unlike cathodic protection which requires a permanent installation, protection using inhibitor injection requires only a temporary installation for a few days. The experimental details are described, and the details are given of the electromigration studies, and the inhibitor studies. The results are presented and discussed.
Uterine geometry and IUCD design (1982)

The endometrial cavity is an isosceles trapezoid that changes in shape with the phase of the cycle. The distance from the fundus to where the cavity narrows to 12 mm is the effective length. This and the total length of the uterine cavity can be measured with the Wing Sound. IUCD complications are more frequent if the length of a device exceeds the effective length or the width of the uterine cavity. Devices must be designed to fit the uterine cavity and to conform to physiological changes in the shape of the organ.
Active branching waveguide modulator (1976)

We report the observation of electrically controlled modulation in a single-mode channel waveguide branch fabricated on Ti-diffused LiNbO3. Over 55% intensity modulation has been observed for applied voltages of ±30 V with an active length of 2.9 mm. Experimental factors limiting device performance are discussed. A theoretical description of the device, based on power transfer between local normal modes, is presented and shown to be consistent with experimental results when sideways diffusion in the channels is approximately accounted for.