gebhart/patrepeval huggingface dataset:
CORBA-based remote instrumentation (2002)

Fast development in two of the most important technologies used in our proposal led to a new implementation of the concept of remote instrument access over public computer networks. As CORBA (Common Object Request Broker Architecture) is emerging into a widespread technology for interconnection of distributed objects our aim was to investigate its applicability on remote instrument access, at the same time trying to reduce implementation complexity as much as possible. The second key technology previously used in our proposal, the Java programming language, is gradually maturing and gaining necessary functionality to be used in more complex applications. Our focus in this paper is on using JavaBeans components both for flexible remote instrument access and, at the same time, for visual programming in various GUI-based application/applet development tools.
THE VAPORIZATION AND PHYSICAL PROPERTIES OF CERTAIN REFRACTORIES. PART II. EXPERIMENTAL STUDIES (1961)

Vapor pressure-temperature relationships for Ir, Rh, Ru, Ir plus C, alumina, thoria, and hafnia were studied by simple effusion and mass spectrometric methods. Vapor phase species were identified. Vapor pressure data and derived heats of vaporization and reaction are presented. The vaporization modes of the rare earth sesquioxides were studied mass spectroscopically. Data demonstrate that the mode of vaporization of these materials is strongly dependent upon the number of electrons in the 4f shell of the rare earth metal. Continuously monitored effusion experiments conducted on the Mo-Si system yielded heats of dissociation. Continuously monitored experiments on the W-Si system yielded approximate dissociation pressures. The surface tensions of silica and silica plus 1% oxide additives and Zr plus U, pure silica, silica plus 1% V2O5, silica plus 1% CoO and silica plus 1% Al2O3 were determined. (Author)
Alteration of the Developing Testis Transcriptome Following Embryonic Vinclozolin Exposure. (2009)

The current study investigates the direct effects of in utero vinclozolin exposure on the developing rat testis transcriptome. Vinclozolin is a commonly used fungicide in agriculture and is an endocrine disruptor with anti-androgenic activity. Previous studies have demonstrated that exposure to vinclozolin during embryonic gonadal sex determination induces epigenetic modifications of the germ line and transgenerational adult onset disease states that include spermatogenic cell defects, prostate disease, kidney disease, and tumor development. An investigation of the molecular actions of vinclozolin was initiated through an analysis of direct actions on the F1 generation embryonic testis development. Microarray analyses were performed to compare control and vinclozolin treated testis transcriptomes at embryonic day 13, 14 and 16. A total of 567 differentially expressed genes were identified and the major cellular functions and pathways associated with these altered transcripts were examined. The sets of regulated genes at the different development periods were found to be transiently altered and distinct. Interestingly, genes previously shown to be regulated during normal male sex determination were not altered by vinclozolin treatment. Categorization by major known functions of all 576 genes altered by in utero vinclozolin exposure demonstrates transcription, signaling, cytoskeletal and extra cellular matrix associated transcripts are highly represented. Specific cellular process and pathway analysis suggests the involvement of Wnt and calcium signaling, vascular development and epigenetic mechanisms as potential mediators of the direct actions of vinclozolin. (poster)
Electro Optical Instrumentation for Resources Evaluation (1982)

"Electro Optical Instrumentation for Resources Evaluation." Optica Acta: International Journal of Optics, 29(10), pp. 1314–1315
Chromium-containing Organometallic Self-organized Materials for Nanophotonics (2006)

Novel non-linear optical polymeric film-producing nanocomposites based on bis(arene)chromium complexes incorporated into CN-containing matrices have been developed. Measurements by the spectrally resolved two-beam coupling method with a femtosecond range of pulse widths (central wavelength 795-800 nm) confirmed that the test composites exhibited a significant cubic nonlinear optical susceptibility of the ultra-fast electronic type. An open aperture Z-scan of the polymer film at 1550 nm showed a value of 9 x 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-19</sup> cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> W <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-2</sup> for the three- photon absorption coefficient. The electro-optical measurements of the polymer composite showed a high electro-optical response (r <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">33.</sub> n <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sup> = 4.245 pm V <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-1</sup> at modulation frequency 210 Hz and poling DC voltage 2.16 V). A significant enhancement of the signals with a decrease in modulation frequency was observed consistent with an essential contribution of orientation effects to the electro- optical response. The measurements in the absence of external electrical fields showed a natural anisotropy resulting from self- organization taking place during the film formation process as confirmed by electron diffraction studies. A single Cr-C distance was found in the EXAFS data refinement, showing that the arene rings are parallel and symmetric as in bis(benzene)chromium.
Aromatization of the B-ring of 5,7-dienyl steroids by the electrophilic ruthenium fragment "[Cp*Ru]+" (1993)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAromatization of the B-ring of 5,7-dienyl steroids by the electrophilic ruthenium fragment "[Cp*Ru]+"Malcolm A. Halcrow, Francisco Urbanos, and Bruno ChaudretCite this: Organometallics 1993, 12, 3, 955–957Publication Date (Print):March 1, 1993Publication History Published online1 May 2002Published inissue 1 March 1993https://pubs.acs.org/doi/10.1021/om00027a054https://doi.org/10.1021/om00027a054research-articleACS PublicationsRequest reuse permissionsArticle Views545Altmetric-Citations54LEARN 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
The Acute Radiotoxicity of Injected Na²⁴ for Mice and Rats (1948)

The following report describes the results from studies based on the toxicity and metabolism of radioactive substances derived from uranium fission. Rats and mice were administered radioactive sodium and reactions and changes were studied.
Bridging the electrode gap with ferroelectric thin films (2016)

Close to the edges of electrodes, strong electric fields are present which often give rise to unwanted effects in liquid crystal behavior. In liquid crystal microdisplays for projector applications, the gap between electrodes should be as small as possible and the liquid crystal orientation should vary sharply from one pixel to the other in order to achieve the highest possible resolution. In other applications however, a smooth variation in the liquid crystal orientation is desirable and fringe field effects are highly unwanted. Electrode based tunable lenses or beam steering devices are examples in which fringe fields should be suppressed as much as possible. A common way to alleviate the fringe field problem and to smoothen out the spatial variation of liquid crystal orientation is to deposit weakly conductive layers on top of the highly conductive electrodes. In such devices there is a trade-off between high electrical power consumption (high conductivity) and reduced smoothing effect (low conductivity). Also, it is technologically not always straightforward to obtain layers with the desired sheet conductivity. In this work, we demonstrate a new technique exploiting the extremely high dielectric permittivity of ferroelectric thin films based on lead zirconate titanate (PbZrxTi1-xO3, PZT). The high dielectric permittivity of the layer leads to similar effects as the conductivity of a weak conductor. The smoothening and spreading of the electrical field lines between two electrodes is clearly demonstrated in figure 1. At the same time we also prove the excellent reduction of fringe fields near electrode edges. Using multi-electrode designs with a PZT top layer, tunable lenses with high optical quality are demonstrated [1]. Also one-dimensional beam steering is demonstrated. In both cases a reference device was fabricated without PZT layer. The benefit of using a PZT layer is obvious when comparing the PZT and non-PZT devices. [1] O. Willekens, J.P. George, K. Neyts & J. Beeckman, Ferroelectric thin films with liquid crystal for gradient index applications, Optics Express 24, 8088-8096 (2016)
Effect of Alkyl Group on the Photocrosslinking of Alkyl Methacrylate Based Copolymers (2013)

Three series of alkyl methacrylate based copolymers having photo-reactive side chains (C=C double bond) were synthesized and examined their performances as photopolymer in the presence of suitable oxime ester or triazine type radical photo-initiators for 365 nm light. Along to our previous report showed that correlation was observed between photochemical reactivity and chain length of the side chain/density of reactive side chain in the cyclohexyl methacrylate main chain. Our proposed mechanism is that sterically stacked nonpolar cyclohexyl groups may push out the polar reactive side chains, and length and density of the side chain controls cross linking between two reactive sites in the single main chain or two different main chains. Now we have examined structural effect of the alkyl groups on the efficiency of photocrosslinking. We have examined 5 series and totally 15 polymers. As a result, cyclohexyl methacrylate based copolymer showed excellent performance for polymerization.
Automated simulation and analysis of electrostatic micromotors (1995)

Industry's interest in micro electro-mechanical systems is rapidly growing. The very small scale, airgaps of 1 to 10 }im and overall dimensions less than 1 mm, makes the electrostatic field beneficial compared to the magnetic field. As a consequence, most of these micro devices are electrostatic energy converters. Due to new processes to manufacture microactuators and micromotors as e.g. X-ray LIGA Mohr et. al. [1], Deep UV Lithography Engelman et. al. [2], plasma etching etc. the number of possible structures has grown as well as the precision with which they can be manufactured. Therefore, there is an increasing need for better analysis tools. The demand is for them to be faster and more accurate, but also more flexible and easy to use. This paper discusses two new techniques for the analysis and the optimisation of electrostatic micromotors of the type variable capacitance motors. The first one is a 3D mesh generation technique for the finite element method (FEM) specially developed for electrostatic micromotors. The second is the generation and use of an equivalent circuit model to enhance and speed up the analysis based on FEM. The paper shows how these techniques have been automated and combined to accomplish optimisation of the average torque of variable capacitance micro motors.
An Attempt to Modulate the Microporous Diffusion of a Model Polypeptide by Altering Its Secondary Structure (2003)

The purpose of the present study was to determine whether intentional alteration of the secondary structure of a model polypeptide, conantokin-G, influenced the rate and extent of aqueous pore diffusion across a synthetic microporous membrane. Use of a microporous synthetic membrane allowed for analysis of polypeptide transport without the confounding variables of protein binding, acid- and/or enzyme-mediated degradation, endocytotic uptake, and enzymatic inactivation associated with a biological membrane. Conantokin-G was intentionally changed from its native random coil structure to the alpha-helix structure using calcium, and both structures were verified using circular dichroism. The alpha-helix structure of conantokin-G was retained even after additional free calcium was removed by equilibrium dialysis. Over the concentration range of 1.25 to 20 mM, there was a linear relationship between the solution calcium concentration and the percent of the alpha-helix conformer present. The apparent permeability, the apparent aqueous diffusion coefficient with and without inclusion of the Renkin function, and the hydrodynamic radii estimated by diffusion and a computer-software program were calculated for the random coil and alpha-helix structures of conantokin-G. Calcium-mediated conversion of conantokin-G to its alpha-helix structure did not significantly (p >.05) change its apparent permeability across a microporous membrane. It is suggested that perhaps complete conversion to the alpha-helix structure of only a fraction of the conantokin-G molecules (only 0.45 or 45% of the molecules can be converted to the alpha-helix structure at Ca(2+) concentrations >or= 20 mM) may have limited the extent of transport of the alpha-helix conformer.
Fundamental ignition study for material fire safety improvement, part 1 (1970)

The investigation of preignition, ignition, and combustion characteristics of Delrin (acetate terminated polyformaldehyde) and Teflon (polytetrafluoroethylene) resins in air and oxygen are presented. The determination of ignition limits and their dependence on temperature and the oxidizing media, as well as the analyses of the volatiles produced, were studied. Tests were conducted in argon, an inert medium in which only purely pyrolytic reactions can take place, using the stagnation burner arrangement designed and constructed for this purpose. A theoretical treatment of the ignition and combination phenomena was devised. In the case of Delrin the ignition and ignition delays are apparently independent of the gas (air, oxygen) temperatures. The results indicate that hydrogen is the ignition triggering agent. Teflon ignition limits were established in oxygen only.
EXPRESSION AND PURIFICATION OF A SOLUBLE ESX-BINDING CORE DOMAIN OF SUR2 (2012)

For HER2 overexpression, the ESX transcription factor must interact with both the HER2 promoter and Sur2, a subunit of human mediator complex, using its Ets domain and transactivation domain, respectively. HER2 overexpression is a marker of poor prognosis in various types of cancers. Thus, interfering with the ESX-Sur2 interaction has been suggested as a novel strategy for the treatment of HER2 positive cancers. To design small molecule inhibitors against the ESX-Sur2 interaction, it is necessary to identify the structure of the interface of ESX-Sur2 binding. Therefore, in this study, we determined the optimal conditions for the overexpression and purification of a new version of Sur2, Sur2391-582, which was able to bind to ESX. To stabilize (His)6-Sur2391-582, various different buffered conditions over a wide range of pH and ionic strengths were examined. The molecular mass of (His)6-Sur2391-582 was determined using mass spectroscopy and size exclusion chromatography. The purified (His)6-Sur2391-582 protein displayed the same biological properties as that of the Sur2 full-length protein.
Envelope proteins of bovine herpesvirus 1: immunological and biochemical studies (1986)

The authors studied immunological and biochemical properties of the bovid herpesvirus 1 (BHV-1) envelope proteins in order to understand the pathogenesis of BHV-1 infection and to provide basic information for the production of effective subunit vaccines against BHV-1. Ten glycoproteins MW 180, 150, 130, 115, 97, 77, 74, 64, 55, and 45 kilodaltons (K), and a single non-glycosylated 108 K protein were quantitatively removed from purified BHV-1 virions by detergent treatment. These glycoproteins were present on the virion envelope and on the surface of BHV-1 infected cells. The quantitative removal from virions by treatment with nonionic detergents and their presence on the surface of infected cells indicate that 180/97, 150/77, and 130/74/55 K are major components of the BHV-1 envelope and are also the targets of virus neutralizing humoral immune response. Envelope glycoproteins of herpes simplex type 1 (HSV-1) bind immunoglobulin by the Fc end and it is suggested this may increase pathogenicity of this virus. They searched for a similar function in BVH-1 by measuring the ability of BHV-1 infected cells and viral envelope proteins to bind radiolabelled rabbit and bovine IgG. Binding activity for rabbit IgG or bovine IgG-Fc could not be demonstrated by BHV-1 infected MDBK cells,more » whereas, MDBK cells infected with HSV-1 bound rabbit IgG and bovine IgG-Fc. None of the three major envelope proteins of BHV-1 bound to rabbit or bovine IgG. The results of this study indicate that BHV-1, unlike some other herpesviruses, lack Fc binding activity.« less
Analysis of Resistance Gene-Mediated Defense Responses in <i>Arabidopsis thaliana</i> Plants Carrying a Mutation in <i>CPR5</i> (1998)

In resistant plants, pathogen attack often leads to rapid activation of defense responses that limit multiplication and spread of the pathogen. To investigate the signaling mechanisms underlying this process, we carried out a screen for mutants in the signaling pathway governing resistance in Arabidopsis thaliana to the bacterial pathogen Pseudomonas syringae. This involved screening for suppressor mutations that restored resistance to a susceptible line carrying a mutation in the RPS2 resistance gene. A mutant that conferred resistance by activating defense responses in the absence of pathogens was isolated. This mutant, which carries a mutation at the CPR5 locus and was thus designated cpr5-2, exhibited resistance to P. syringae, spontaneous development of necrotic lesions, elevated PR gene expression in the absence of pathogens, and abnormal trichomes. Resistance gene-mediated defenses, including the hypersensitive response, restriction of pathogen growth, and induction of defense-related gene expression, were functional in cpr5-2 mutant plants. Additionally, in cpr5-2 plants RPS2-mediated induction of PR-1 expression was enhanced, whereas RPM1-mediated induction of ELI3 was not. These findings suggest that CPR5 encodes a negative regulator of the RPS2 signal transduc-tion pathway.
Application of Mobility Prediction in Wireless Networks Using Markov Renewal Theory (2009)

An understanding of the network traffic behavior is essential in the evolution of today's wireless networks and thus leads to a more efficient planning and management of the network's scarce bandwidth resources. Prior reservation of radio resources at future locations of a user's mobile trajectory can assist in optimizing the allocation of the network's limited resources and sustaining a desirable quality-of-service (QoS) level. This can also help to ensure that the network service can be available anywhere and anytime, which is only possible if, at any time, we can predict from where a user is going to make its demands. In this paper, we apply Markov renewal processes for both mobility modeling and predicting the likelihoods of the next-cell transition, along with anticipating the duration between the transitions, for an arbitrary user in a wireless network. Our proposed prediction technique will also be extended to compute the likelihoods of a user being in a particular state after <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">N</i> transitions. The proposed technique can also be used to estimate the expected spatial-temporal traffic load and activity at each location in a network's coverage area. Using some real traffic data, we illustrate how our proposed prediction method can lead to a significant improvement over some of the conventional methods.
A design methodology for energy aware neural networks (2011)

The increasing demand for mobile devices and high performance computing has made energy consumption a main issue in computer technology. Mobile devices require extended battery life, but the available technology still puts limits on the need for recharging the devices. High performance computing has a high price tag on energy for compute-intensive applications such as data mining. As a result, optimizations at various layers of the computer platform are becoming necessary to minimize energy usage or extend the time before a battery needs to be recharged. This paper focuses on back-propagation neural network algorithm, one of the popular compute-intensive data mining algorithms. The goal is to present a design methodology for developing an energy aware algorithm. The key idea revolves around identifying operations called kernels, which are frequently used in the algorithm, and that can be implemented in hardware. Optimizing these kernels for performance or energy would then lead to a major impact in these areas. These kernels are analyzed for their impact on the overall application energy using energy-based asymptotic analysis. The methodology then considers additional optimizations not related to kernels, but are specific to the back-propagation algorithm. Suggestions are provided to improve the performance and reduce energy consumption. Experiments show that there are significant potentials in energy reduction through the use of alternative lower energy kernels or through custom optimizations with tradeoffs in the accuracy of the results.
Hardware-assisted polygon antialiasing (1991)

The use of two sampling methods, the precise point-sampling algorithm and the extended Bresenham algorithm (EBA), for rendering hardware is discussed, showing where the two methods converge and diverge. Two antialiasing techniques are then presented: an oversampling method and a stochastic method. Practical application of both is described. The use of filtering and sophisticated features with these methods is considered. Hardware support for antialiasing of polygons is discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>