gebhart/patrepeval huggingface dataset:
MHD flow and heat transfer of a micropolar fluid over a stretching surface with heat generation (absorption) and slip velocity (2012)

In this work, the effects of slip velocity on the flow and heat transfer for an electrically conducting micropolar fluid over a permeable stretching surface with variable heat flux in the presence of heat generation (absorption) and a transverse magnetic field are investigated. The governing partial differential equations describing the problem are converted to a system of non-linear ordinary differential equations by using the similarity transformation, which is solved numerically using the Chebyshev spectral method. The effects of the slip parameter on the flow, micro-rotation and temperature profiles as well as on the local skin-friction coefficient, the wall couple stress and the local Nusselt number are presented graphically. The numerical results of the local skin-friction coefficient, the wall couple stress and the local Nusselt number are given in a tabular form and discussed.
Thickness measurements of films on transparent substrates by photoelectric detection of interference fringes (1974)

Apparatus for epitaxial film thickness measurement by photoelectric detection of interference fringes is described. The apparatus features high speed, immunity to noise from ambient light and the ability to distinguish between films grown on opposite sides of a transparent substrate, and is implemented with a minimum of components.
The Spoofax language workbench (2010)

Spoofax is a language workbench for efficient, agile development of textual domain-specific languages with state-of-the-art IDE support. Spoofax integrates language processing techniques for parser generation, meta-programming, and IDE development into a single environment. It uses concise, declarative specifications for languages and IDE services. In this paper we describe the architecture of Spoofax and introduce idioms for high-level specifications of language semantics using rewrite rules, showing how analyses can be reused for transformations, code generation, and editor services such as error marking, reference resolving, and content completion. The implementation of these services is supported by language-parametric editor service classes that can be dynamically loaded by the Eclipse IDE, allowing new languages to be developed and used side-by-side in the same Eclipse environment.
Referentially oriented cerebral MRI anatomy : an atlas of stereotaxic anatomical correlations for gray and white matter (1993)

The physical basis of magnetic resonance imaging normal shoulder anatomy and MR imaging diagnosis of shoulder disorders magnetic resonance imaging of patients with shoulder pain or instability case studies treatment of shoulder disorders.
Multiplayer cloud gaming system with cooperative video sharing (2012)

Mobile cloud-based video gaming (MCVG) is an emerging trend in moving the online entertainment industry into the cloud era. In MCVG, the game engines are hosted in the cloud, and the rendered gaming videos are transmitted over wireless networks to the mobile devices. In reverse, game players' interactions on screens are sent to the cloud server over the same networks. How to compress and transmit the real-time gaming video, so that during the gaming session, the expected server transmission rate over the bandwidth-limited wireless network is minimized while satisfying the quality of experience demanded by the players, is a great technical challenge that is addressed in this paper in a multi-player gaming context. We exploit the correlations between the gaming videos for distinct players in the same gaming scene to propose a cloud gaming system with cooperative video sharing, in which the cloud game server is able to efficiently encode and transmit multiple video streams to a group of players, while those players are able to decode their video in a cooperative manner by sharing contents via a secondary network such as ad hoc wireless local area network. Experimental results show that the expected server transmission rate can be significantly reduced compared to the conventional video encoding schemes for cloud games.
Low-interference sensing electronics for high-resolution error-correcting biomechanical ground reaction sensor cluster (2010)

This paper presents a low-interference and low power sensing electronics design for a high-resolution error correcting biomechanical ground reaction sensor cluster (GRSC) developed for improving inertial measurement unit (IMU) positioning resolution and accuracy. The GRSC is composed of 13 × 13 sensing nodes, which can measure dynamic ground forces, shear strains, and sole deformation associated with a ground locomotion gait. The integrated sensing electronics consist of a front-end multiplexer that can sequentially connect individual sensing nodes in a GRSC to a capacitance-to-voltage converter followed by an ADC, digital control unit, and driving circuitry to interrogate the GRSC. The sensing electronics are designed in a 0.15 μm CMOS process and occupy an area of approximately 3 mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> with an expected resolution of 10-bits and 14-bits for the z-axis pressure sensing and the x and y-axes shear strain sensing, respectively, while dissipating a DC power less than 2 mW from a 3V supply.
A comparative XPS surface study of Li<sub>2</sub>FeSiO<sub>4</sub>/C cycled with LiTFSI- and LiPF<sub>6</sub>-based electrolytes (2008)

X-Ray photoelectron spectroscopy (XPS) has been used to characterise the surfaces of carbon-coated Li2FeSiO4 cathodes extracted from Li-ion batteries in both a charged and discharged state. 1 M lithium bis(trifluoromethylsulfonyl)imide (LiTFSI) and lithium hexafluorophosphate (LiPF6) based electrolytes were used with ethylene carbonate (EC) and diethyl carbonate (DEC) as organic solvents. The LiTFSI-based electrolyte exhibited high salt stability and no significant formation of LiF. However, solvent reaction products from EC were found together with lithium carbonate. A LiPF6-based electrolyte, on the other hand, showed inferior salt stability with LixPFy, LixPOyFz and LiF species formed on the surface. Solvent reaction products together with lithium carbonate were also found. There are also indications that Li2FeSiO4 is degraded by the HF formed in the electrolyte by the hydrolysis of LiPF6. A better understanding of the surface chemistry of carbon-coated Li2FeSiO4 after the first cycles in a Li-ion battery has thus been achieved, thereby facilitating the optimisation of Li-ion batteries based on this potentially cheap and electrochemically most promising cathode material giving excellent capacity retention: <3% drop over 120 cycles.
Photopolymerization of ternary thiol–ene/acrylate systems: Film and network properties (2007)

Abstract Photocurable, ternary‐component mixtures of a 1:1 molar multifunctional thiol–ene (trithiol and triallyl ether) blend and a 16‐functional acrylate based monomer have been photopolymerized, and the final film properties of the ternary crosslinked networks have been measured. The photopolymerization kinetics, morphology, and mechanical and physical properties of the films have been investigated with real‐time infrared, atomic force microscopy, and dynamic mechanical analysis. The photopolymerization process is a combination of acrylate homopolymerization and copolymerizations of thiol with allyl ether and acrylate functionalities. The tan δ peaks of the photopolymerized ternary systems are relatively narrow and tunable over a large temperature range. The morphology is characterized by a distinct phase‐separated nanostructure. The photocured thiol–ene/acrylate ternary systems can be made to exhibit good mechanical properties with enhanced energy absorption at room temperature by the appropriate selection of each component concentration. © 2007 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 45: 822–829, 2007.
Multilayer composite photonic bandgap fibers (2004)

Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2004.
Dynamic-level scheduling for heterogeneous processor networks (2002)

Dynamic-level scheduling is an effective compile-time scheduling technique which accounts for interprocessor communication overhead when mapping precedence-constrained, communicating tasks onto arbitrarily interconnected processor networks. Scheduling and routing are performed simultaneously to account for limited interconnections between processors, and communications are scheduled along with computations to eliminate shared-resource contention. The paper extends the dynamic-level scheduling methodology to encompass heterogeneous processing environments, and presents two techniques designed to enhance scheduling performance: forward/backward scheduling, and precedence constraint appendage.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Formation of Protein and Protein–Gold Nanoparticle Stabilized Microbubbles by Pressurized Gyration (2014)

A one-pot single-step novel process has been developed to form microbubbles up to 250 μm in diameter using a pressurized rotating device. The microbubble diameter is shown to be a function of rotational speed and working pressure of the processing system, and a modified Rayleigh-Plesset equation has been derived to explain the bubble-forming mechanism. A parametric plot is constructed to identify a rotating speed and working pressure regime, which allows for continuous bubbling. Bare protein (lysozyme) microbubbles generated in this way exhibit a morphological change, resulting in microcapsules over a period of time. Microbubbles prepared with gold nanoparticles at the bubble surface showed greater stability over a time period and retained the same morphology. The functionalization of microbubbles with gold nanoparticles also rendered optical tunability and has promising applications in imaging, biosensing, and diagnostics.
Strategies for effectively visualizing 3D flow with volume LIC (2002)

This paper discusses strategies for effectively portraying 3D flow using volume line integral convolution. Issues include defining an appropriate input texture, clarifying the distinct identities and relative depths of the advected texture elements, and selectively highlighting regions of interest in both the input and output volumes. Apart from offering insights into the greater potential of 3D LIC as a method for effectively representing flow in a volume, a principal contribution of this work is the suggestion of a technique for generating and rendering 3D visibility-impeding "halos" that can help to intuitively indicate the presence of depth discontinuities between contiguous elements in a projection and thereby clarify the 3D spatial organization of elements in the flow. The proposed techniques are applied to the visualization of a hot, supersonic, laminar jet exiting into a colder, subsonic coflow.
Characterization of Heavy Oils. 3. Prediction of Gas Injection Behavior: Swelling Test, Multicontact Test, Multiple-Contact Minimum Miscibility Pressure, and Multiple-Contact Minimum Miscibility Enrichment (1995)

International audience
Rates of Condensation of Sodio Ketones with Esters to Form Sodio β-Diketones in Ether Solution (1959)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRates of Condensation of Sodio Ketones with Esters to Form Sodio β-Diketones in Ether SolutionDouglas G. Hill, John Burkus, and Charles R. HauserCite this: J. Am. Chem. Soc. 1959, 81, 3, 602–606Publication Date (Print):February 1, 1959Publication History Published online1 May 2002Published inissue 1 February 1959https://doi.org/10.1021/ja01512a024Request reuse permissionsArticle Views58Altmetric-Citations2LEARN 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 (647 KB) Get e-Alertsclose Get e-Alerts
Internal and interfacial dielectric properties of cytochrome c from molecular dynamics in aqueous solution. (1995)

The dielectric properties of proteins are central to their stability and activity. We use the Fröhlich-Kirkwood theory of dielectrics to analyze two 1-ns molecular dynamics simulations of ferro- and ferricytochrome c in spherical droplets of 1400 water molecules. Protein and solvent are idealized as a series of concentric, spherical, dielectric media. Analysis results depend strongly on the treatment of the charged protein side chains at the protein/solvent interface. If charged side chains are viewed as part of the protein medium, then the protein dipole fluctuations are dominated by large, mutually uncorrelated, anisotropic, motions of the charged side chains. It is then incorrect to view the protein region as a single, homogeneous dielectric material. If one does take this view, estimates of the protein "dielectric constant" vary from 16 to 37, depending on the exact choice of model parameters. In contrast, if the charged portions of the charged side chains are viewed as part of the solvent medium, then theory and simulation are consistent: the protein dipole fluctuations excluding charged side chains are roughly those of a homogeneous, isotropic dielectric medium, with a dielectric constant of 4.7 +/- 1.0 (ferro) or 3.4 +/- 1.0 (ferri), in agreement with powder experiments. Statistical uncertainty and sensitivity to model parameters are small. Analysis of the radial dependence of the dipole fluctuations suggests that the inner half of the protein has a somewhat lower dielectric constant of 1.5-2, consistent with its biological function in electron transfer. These results suggest that Poisson-Boltzmann models could treat the protein bulk as a low-dielectric medium and the charged surface groups as part of the solvent region.
Human dendritic cells: major stimulators of the autologous and allogeneic mixed leucocyte reactions. (1982)

Highly purified preparations of dendritic cells were obtained from human peripheral blood. Loosely adherent cells were selected and subsequently depleted of phagocytic cells and Fc receptor positive cells to yield the dendritic cell fraction. These isolates contained greater than 90% Ia positive cells, with many of the cells showing the morphological characteristics of the murine dendritic cell. These preparations were compared to other mononuclear cell fractions as stimulating cells in autologous and allogeneic mixed leucocyte reactions. The dendritic cell preparations provided the most potent stimulus for autologous T cell proliferation, with 10 x more 3H-thymidine incorporated by T lymphocytes incubated with autologous dendritic cells than with any other non-T cell preparation. Dendritic cells were also the most stimulatory cell in the allogeneic mixed leucocyte reaction, although the non-adherent subpopulation produced some stimulation of allogeneic T cells. In separate experiments, it was determined that B cells could be activated by pokeweed mitogen to vigorously stimulate autologous T cells. Visual observation of cluster formation in cultures containing dendritic cells and autologous T cells suggests that the capacity for intimate cell contact may be an important property of the dendritic cell in vivo.
Gold complexes as antimicrobial agents: an overview of different biological activities in relation to the oxidation state of the gold ion and the ligand structure (2014)

Interest in antimicrobial gold complexes originated from the work of Robert Koch at the end of 19th century, who demonstrated that potassium dicyanidoaurate(I), K[Au(CN)2], showed activity against Mycobacterium tuberculosis, a causative agent of tuberculosis. Subsequently, a large number of gold(I) and gold(III) complexes have been evaluated as possible antimicrobial agents against a broad spectrum of bacteria, fungi and parasites. The first part of the present review article summarizes the results achieved in the field of antibacterial and antifungal activity of gold(I) and gold(III) complexes. The represented gold(I) complexes have been divided into three distinct classes based on the type of coordinated ligand: (i) complexes with phosphine-type ligands, (ii) complexes with N-heterocyclic carbene ligands and (iii) various other gold(I) complexes, while the results related to the antibacterial and antifungal gold(III) complexes have been mainly focused on the organometallic-type of complexes. The second section of this article represents findings obtained from the evaluation of antimalarial activity of gold complexes against chloroquine-sensitive and chloroquine-resistant strains of Plasmodium falciparum parasite. Antimalarial gold(I) and gold(III) complexes have been divided into the following classes, based on the nature of the coordinated ligand: (i) complexes with chloroquine and its derivatives, (ii) complexes with N-heterocyclic carbene ligands, (iii) complexes containing functionalised alkynes and (iv) thiosemicarbazonato ligands, as well as (v) other gold(I) and gold(III) complexes. In the last section of the review, gold(I) and gold(III) complexes have been reported to be potential agents against parasites that cause amoebiasis, leishmaniasis and trypanosomiasis. A systematic summary of these results could contribute to the future design of new gold(I) and gold(III) complexes as potential antimicrobial agents.
Notizie sugli autori (2017)

Anna Lisa Amodeo, Ricercatore di Psicologia Clinica presso l’Università degli Studi di Napoli Federico II; Vincenzo Bochicchio, Ricercatore di Istituzioni di filosofia e Professore aggregato di Psicopatologia dello sviluppo presso l’Università della Calabria; Riccardo Cannavale, Responsabile comunicazione Uisp Campania; Nicola Dario Casolare, Psicologo clinico, Sezione Antidiscriminazione e Cultura delle Differenze del Centro di Ateneo SInAPSi, Università degli Studi di Napoli Federico II; Ma...
Improved Membranes for Hemodialysis (1970)

Abstract Asymmetric membranes of cellulose acetate and cellulose acetate modified with pendant amino groups have been evaluated for ultrafiltration and dialysis properties. Ultrafiltration rates from 4 to 30 times that of Cuprophan were obtained. During the ultrafiltration test, up to 89% of inulin in the test solution permeated with the ultrafitrate in contrast to the 14% permeation of inulin through a Cuprophan membrane. In spite of the apparently facile permeation of high molecular weight species (e.g., inulin) through the experimental membranes, human albumin was quantitatively reflected. Dialysis tests indicate that cellulose acetate membranes 38 μ or less in thickness should surpass 23-μ-thick (wet) Cuprophan in purely diffusional transport of blood solutes of low molecular weight. In addition to their promising ultrafiltration and dialysis properties, membranes made from a blend of cellulose acetate and N,N-diethylaminoethylcellulose acetate were found to sorb heparin strongly. The clotting time of rabbit blood in contact with the heparinized membranes was extended, in some cases indefinitely.
Effects of Surface Passivation on Silicon Nanoparticle Photoluminescence (2003)

Abstract Silicon nanoparticles were produced by a relatively low temperature (164 °C), solution-phase synthesis. The particles exhibit UV to blue photoluminescence (PL) which varied with excitation wavelength. The average lifetimes, excited at 300 nm, ranged from 4.4 to 5.9 ns. The mean particle diameter, determined by atomic force microscopy, was ≈1.08 nm. The PL spectra of particles passivated with methoxy or butyl groups were blue-shifted with respect to those passivated with hydroxy groups.
Mediating Among Diverse Data Formats (1998)

Abstract : The growth of the Internet and other global networks has made large quantities of data available in a wide variety of formats. Unfortunately, most programs are only able to interpret a small number of formats, and cannot take advantage of data in unfamiliar formats. As the Internet grows, new applications arise, and legacy data persists, the diversity of formats will continue to increase, worsening the problem. Current approaches to data diversity fail to scale up gracefully, or fail to handle the full heterogeneity of data and data sources found on the Internet. I have developed a data model and a system of mediator agents that support the widespread use of diverse data formats much more effectively than current approaches do. In this thesis, I describe and evaluate the design and implementation of this data model, known as the Typed Object Model (or TOM), and the system of mediators that supports it. TOM is a read-only object-oriented data model that describes the abstract structure of data formats, their concrete representations, and relations between formats. TOM is supported by a distributed network of mediator agents (known as type brokers) that maintain information about data formats, and provide uniform access to conversions and other operations on those formats. Type brokers plan complex conversion strategies that can involve multiple servers, and ensure that conversions preserve information needed by clients. Data providers can also register new formats, operations, and conversions with type brokers in a decentralized manner, and make them usable anywhere on the Internet. TOM type brokers now work with hundreds of data formats, often through integration of off-the-shelf programs. TOM also supports a wide variety of applications and interfaces, such as the Web-based TOM Conversion Service, that have users worldwide.
Levulinate Esters from Biomass Wastes (2001)

The conversion of resin-bonded furniture and building waste to levulinate esters was investigated with a view to producing fuels, solvents, and chemical intermediates as well as other useful byproducts in an inexpensive process. The acid-catalyzed reaction of cellulosic materials with ethanol or methanol at 200°C gives good yields of levulinate and formate esters. A solid residue (charcoal) and a resinous lignin residue are also obtained. The excess alcohol solvent is recycled. An advantage of the reaction in alcohol is that wastewater is minimized and products are purified easily by distillation of the esters. Methanol and ethanol, which give the highest yields of levulinate esters, can be obtained at a low production cost. These esters are therefore the preferred intermediates for conversion to many other products. The ethyl ester has been converted in high yield to a number of other esters by Fischer esterification. The resulting ketoesters are substrates for a variety of condensation and addition reactions at the ester and keto groups. A market for these higher-value products is needed to justify the process cost.