gebhart/patrepeval huggingface dataset:
VENTURI - immersiVe ENhancemenT of User-woRld Interactions (2012)

The Augmented Reality (AR) concept has excited visionaries and researchers for decades, and finally its enabling technologies are beginning to materialize on consumer-grade mobile devices. The availability of powerful mobile computing platforms combined with fast mobile Internet access, opens the door to ‘solid’ visual/auditory augmentation of the world with geo-spatial knowledge, distilled from our personal digital lifestyles in social networks and the cloud. However, convincing AR has to date only been demonstrated on small mock-ups in controlled spaces. We have not yet seen key conditions being met to make AR a booming technology: seamless persistence and pervasiveness. This paper introduces the FP7 funded VENTURI project and its technologies, which aims to create a pervasive AR paradigm. The goal is to create an AR experience that is always present whilst never obstructing, delivering pertinent information in a ‘user’ rather than a ‘device’ centric way. This requires a change in how we think of and develop user interaction interfaces, making ‘context’ the starting point of all interactions. VENTURI addresses such issues, creating a user appropriate, contextually aware AR system, through a seamless integration of core technologies and applications on a state-of-the-art mobile platform.
Integrating Search and Browse Capabilities into File Systems Extended Abstract - for a Technology Demonstration (2006)

This demonstration presents a file system with integrated indexing, search, and browse mechanisms, such that locating information is intuitive and easy. The standard file system API is used, thus existing applications don't have to be altered to use the new capabilities.
ChemInform Abstract: A Highly Efficient Synthesis of RWJ 47639 (V): A Novel, Orally Active Angiotensin II Receptor Antagonist. (1995)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Steady Shear Response of Carbon Nanotube Networks Dispersed in Poly(ethylene oxide) (2008)

The response of fractal networks of dispersed single walled carbon nanotubes in poly(ethylene oxide) to continuous constant-rate shear flow is examined as functions of shear rate and nanotube concentration. The steady shear viscosity values are strong functions of shear rate and follow a power-law shear-thinning character, while the nanotube concentration dependence of the viscosity (at a fixed shear rate) is somewhat weaker than the scaling of the equilibrium modulus values. For dispersions with nanotube concentrations corresponding to the semidilute regime, the stress response to constant-rate continuous shear from rest demonstrates a stress maximum that decays to a steady value at long times. The stress maximum and steady shear behavior can be reconciled in terms of the changing structure at the mesoscale for the fractal networks. On the other hand, the transient development of the stress during the start-up experiments can be qualitatively reconciled in the context of a cluster dynamics model.
Simulation study on practical choices for B / A measurement by the generalized finite amplitude insert-substitution method (2021)

The measurement of the parameter of nonlinearity B/A of tissues and liquids has potential to aid medical diagnosis. Therefore, accurate B/A measurement stays a relevant task. The finite amplitude insert-substitution (FAIS) method estimates B/A of biological tissues based on the measured 2nd harmonic in two configurations, (1) when only the reference medium is between the acoustic source and receiver, and (2) when the studied sample is inserted in the acoustic path with the reference medium. The generalised FAIS (gFAIS) has been previously proposed with the advantage of measuring B/A of liquids as well as ex-vivo tissues and allowing freedom in sample positioning. This simulations study validates the gFAIS method and provides insight into the practical choices for the setup that allow for an accurate measurement. Source and receiver size, distance between the source and the receiver and sample positioning have been studied on the subject of their effect on the measurement error for a homogeneous (modelling liquid) and a heterogeneous (modelling tissue) sample. Since B/A estimation also requires the measurement of the attenuation coefficients at the fundamental and 2nd harmonic frequnecy, practical choices for these measurements have also been studied.
Ferrielectric liquid crystal subphase studied by polarized Fourier-transform infrared spectroscopy (2000)

IR dichroism and the structure of a homogeneously aligned cell of a chiral smectic antiferroelectric liquid crystal (R)-1-methylheptyl 4-(4(')-dodecyloxybiphenyl-4-ylcarbonyloxy)-3-fluorobenzoate [with acronym (R)-12OF1M7] in a ferrielectric subphase in the temperature range between the antiferroelectric phase (also referred to as Fi2) and the smectic-C*(SmC*) phase are studied using polarized Fourier transform IR spectroscopy. The polarization dependencies of the absorbance for several characteristic bands are quantitatively analyzed for different stages of the electrically induced structural transformations in the sample, including the helix unwinding and the phase transition from the ferriphase to the SmC* phase. A qualitative similarity of the voltage dependence of the normalized angular shift of the IR absorbance profile for the "chiral" carbonyl band to that of the normalized macroscopic polarization is found. The voltage dependent dichroic properties of the sample are analyzed in terms of the molecular structure and unwinding of the helical structure under an external electric field. The rotational orientational biasing of the carbonyl groups around the long molecular axis is confirmed by the spectral data. The analysis of IR dichroic data for the field induced SmC* phase is used to determine the rotational orientational distributions for the carbonyl groups.
Preparation and Spectra of 9-(p-Vinylphenyl)anthracene (1979)

Abstract A novel vinyl monomer containing the polyaromatic ring, 9-(p-vinylphenyl)anthracene, was prepared by the Grignard reaction of anthrone and p-vinylphenylmagnesium halides which could be obtained either from p-bromostyrene or p-chlorostyrene. The results and the spectra of products are discussed.
Continuous wave excitation in laser-enhanced ionization spectrometry (1982)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTContinuous wave excitation in laser-enhanced ionization spectrometryGeorge J. Havrilla, Stephan J. Weeks, and John C. TravisCite this: Anal. Chem. 1982, 54, 14, 2566–2570Publication Date (Print):December 1, 1982Publication History Published online1 May 2002Published inissue 1 December 1982https://pubs.acs.org/doi/10.1021/ac00251a036https://doi.org/10.1021/ac00251a036research-articleACS PublicationsRequest reuse permissionsArticle Views45Altmetric-Citations23LEARN 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
Syntheses of diaza‐18‐crown‐6 ligands containing two units each of 4‐hydroxyazobenzene, benzimidazole, uracil, anthraquinone, or ferrocene groups (1999)

Abstract Six new diaza‐18‐crown‐6 ligands each containing two aromatic side arms with responsive functions were prepared. Diaza‐18‐crown‐6 containing two 4‐hydroxyazobenzene ( 3 ) or two 4 ‐hydroxy‐ 4′ ‐(dimethyl‐amino)azobenzene ( 4 ) substituents were prepared via a one‐pot Mannich reaction. Diaza‐18‐crown‐6 containing two benzimidazole ( 5 ), two uracil ( 6 ) or two 9,10‐anthraquinone ( 7 ) substituents were prepared by treating the diazacrown with the appropriate chloromethyl‐containing compound. Reductive amination using sodium triacetoxyborohydride, diaza‐18‐crown‐6 and ferrocenecarboxaldehyde was used to prepare bisferrocene‐substituted diaza‐18‐crown‐6 ( 8 ). Interactions of compounds 3 , 5 , and 6 with Na + , K + , Ba 2+ , Ag + , and Cu 2+ were evaluated by a calorimetric titration technique at 25° in methanol. All three ligands form more stable complexes with Ag + and Cu 2+ ( 5 forms a precipitate with Ag + ) than with Na + and K + . Ligand 5 also forms a highly stable complex with Ba 2+ .
Characterization of microstructure freeform surfaces using a pattern matching analysis (2008)

23rd Annual Meeting of the American Society for Precision Engineering, ASPE 2008 and the 12th ICPE, Portland, OR, 19-24 October 2008
Photo-Polymerized Organic Host Network of Ionogels for Lithium Batteries: Effects of Mesh Size and of Ethylene Oxide Content (2018)

International audience
Magnetron phase locking: Effects of frequency chirp and locking of multiple magnetrons (2008)

Summary form only given. Phase-locking is utilized today in many important applications, ranging from small scale devices such as cardiac pacemakers to large scale devices such as radar. We have adopted a magnetron-specific model to qualitatively explain the various regimes observed in magnetron injection-locking experiments, which utilize two continuous wave magnetrons; one functions as an oscillator and the other as a driver. The model has been applied to study injection locking when the driver has a frequency chirp. The model has also recently been extended to analyze peer-to-peer locking of two magnetrons of comparable powers and frequencies. The feasibility of locking will be explored in terms of the variations in these parameters of the individual magnetrons, as well as the degree of coupling among them. Locking among a larger number of such magnetrons will be explored. A preliminary experiment is being conducted on the peer-to-peer locking of two commercial KW magnetrons.
DSP controlled low-voltage high-current fast-transient Voltage Regulator Module (2002)

Future generation of microprocessors will require high performance Voltage Regulator Modules (VRMs) that produce tightly regulated low supply voltage with very small deviation window and able to respond very quickly to a large and continuous load transients at high output current while maintaining a high power density. On one hand, the current drawn from the VRM by the microprocessor is continuously changing since it depends at the current use of the microprocessor. On the other hand, High Frequency VRMs as any Power Electronics System is a complex combination of linear, nonlinear, and switching elements that is required to have fast dynamics. Moreover, this complex combination is also real-time system that needs to continuously and instantly monitor and respond to the load changes (the microprocessor). A high performance basic control loop is essential to follow up with such transients. Such controller design is usually complicated especially since it requires high knowledge of the converter and its behavior and accurate converter model that includes nonlinearities and parameters and components variations. DSP has many advantages over the analog circuits when it comes to applying high performance sophisticated control techniques such the simplicity in applying sophisticated control algorithms and modifying them via software revision, lower environmental and noise sensitivity, and less components count. In this paper, a DSP setup to be
Reactions of α-Hydroxyketene Dithioacetals with Lawesson’s Reagent: An Efficient Method for the Synthesis of α,β-Unsaturated Dithioesters (2005)

The α-hydroxyketene dithioacetals 2 and 5, obtained from α-oxoketene dithioacetals by the 1,2-reduction or the 1,2-addition of carbon nucleophiles, on treatment with Lawesson’s reagent afforded α,β-unsaturated dithioesters 3 and 6 in good yields.
alpha-Naphthoflavone activation of 6-hydroxymethylbenzo(alpha)pyrene synthetase. (1975)

alpha-Naphthoflavone activates the aryl hydroxymethyl synthetase of both the microsomal membrane-bound and soluble enzymes of rat liver and rat lung. The enzyme catalyzes the hydroxymethylation of benzo(alpha)pyrene to the 6-hydroxymethyl derivative.
Evaluation of Large Scale Quantitative Proteomic Assay Development Using Peptide Affinity-based Mass Spectrometry (2011)

Stable isotope standards and capture by antipeptide antibodies (SISCAPA) couples affinity enrichment of peptides with stable isotope dilution and detection by multiple reaction monitoring mass spectrometry to provide quantitative measurement of peptides as surrogates for their respective proteins. In this report, we describe a feasibility study to determine the success rate for production of suitable antibodies for SISCAPA assays in order to inform strategies for large-scale assay development. A workflow was designed that included a multiplex immunization strategy in which up to five proteotypic peptides from a single protein target were used to immunize individual rabbits. A total of 403 proteotypic tryptic peptides representing 89 protein targets were used as immunogens. Antipeptide antibody titers were measured by ELISA and 220 antipeptide antibodies representing 89 proteins were chosen for affinity purification. These antibodies were characterized with respect to their performance in SISCAPA-multiple reaction monitoring assays using trypsin-digested human plasma matrix. More than half of the assays generated were capable of detecting the target peptide at concentrations of less than 0.5 fmol/μl in human plasma, corresponding to protein concentrations of less than 100 ng/ml. The strategy of multiplexing five peptide immunogens was successful in generating a working assay for 100% of the targeted proteins in this evaluation study. These results indicate it is feasible for a single laboratory to develop hundreds of assays per year and allow planning for cost-effective generation of SISCAPA assays.
Rollable Latent Space for SAR Target Recognition of Un-seen Views. (2018)

This paper proposes rollable latent space (RLS) for synthetic aperture radar (SAR) target recognition of un-seen views. Scarce labeled data and limited viewing direction are critical issues in SAR target recognition.The RLS is a designed space in which rolling of latent features corresponds to 3D rotation of an object. Thus latent features of an arbitrary view can be inferred using those of different views. This characteristic further enables us to augment data from limited viewing in RLS. Experimental results in five vehicle classification of un-seen views show that an RLS-based classifier improves accuracies by 30% compared with a conventional network's one.
Catalytic Reduction of Dinitrogen to Ammonia at a Single Molybdenum Center (2003)

Dinitrogen (N2) was reduced to ammonia at room temperature and 1 atmosphere with molybdenum catalysts that contain tetradentate [HIPTN3N]3- triamidoamine ligands (such as [HIPTN3N]Mo(N2), where [HIPTN3N]3- is [(3,5-(2,4,6-i-Pr3C6H2)2C6H3NCH2CH2)3N]3-) in heptane. Slow addition of the proton source [(2,6-lutidinium)(BAr'4), where Ar' is 3,5-(CF3)2C6H3]and reductant (decamethyl chromocene) was critical for achieving high efficiency ( approximately 66% in four turnovers). Numerous x-ray studies, along with isolation and characterization of six proposed intermediates in the catalytic reaction under noncatalytic conditions, suggest that N2 was reduced at a sterically protected, single molybdenum center that cycled from Mo(III) through Mo(VI) states.
Magneto-Optical Spectroscopy of Anatase TiO2Doped with Co (2003)

Magneto-optical spectroscopy of a transparent ferromagnetic semiconductor, anatase TiO2 doped with Co, is carried out at room temperature. A large magneto-optical response with ferromagnetic field dependence is observed throughout from ultraviolet to visible range and increases with increasing Co content or carrier concentration. The magnitude of magnetic circular dichroism (MCD) per unit thickness has a peak around the absorption edge such a huge value of ∼10400 deg/cm at 3.57 eV for a 10 mol% Co-doped specimen. Although the results are not sufficient to prove that the ferromagnetism is in the ordinary framework of diluted magnetic semiconductors, the coexistence of Co impurity and mobile carrier is shown to transform the band structure of host TiO2 to generate ferromagnetism.
Confocal 3D reflectance imaging through multimode fibers without wavefront shaping (2021)

Imaging through optical multimode fibers (MMFs) has the potential to enable hair-thin endoscopes that reduce the invasiveness of imaging deep inside tissues and organs. Current approaches predominantly require active wavefront shaping and fluorescent labeling, which limits their use to preclinical applications and frustrates imaging speed. Here we present a computational approach to reconstruct depth-gated confocal images using a raster-scanned, focused input illumination. We demonstrate the compatibility of this approach with quantitative phase, dark-field, and polarimetric imaging. Computational imaging through MMF opens a new pathway for minimally invasive imaging in medical diagnosis and biological investigations.
Thermoviscous effects on acoustic scattering by thermoelastic solid cylinders and spheres (1983)

This paper presents analytic solutions and numerical results of the scattering of plane sound waves from a thermoelastic circular cylinder and from a thermoelastic sphere in an infinite, thermoviscous fluid medium. The thermoelastic properties of the cylinder and the sphere and the viscosity and thermal conductivity of the surrounding fluid are taken into consideration in the solutions of the acoustic-scattering problems. We started with examining the acoustic field equations in thermoviscous fluids and in thermoelastic solids from the standpoints of continuum mechanics and thermodynamics, and then presented the normal-mode solutions to, and numerical examples of, the acoustic scattering by a single cylinder and a sphere. The acoustic parameters of interest are the farfield scattering pattern, the acoustic-radiation force, and the absorption and scattering cross sections. These parameters were first derived in closed forms and then evaluated numerically for a given set of material properties.
A simple method of source optimization for advanced NAND FLASH process (2011)

We have developed a very simple source optimization (SO) method for L/S and C/H critical layers patterning of advanced NAND FLASH. Starting from the strong off-axis illumination shape which is optimized for the finest structure of the mask pattern, a systematic procedure is performed to extract the optimum parameters of additional assist sources to balance the imaging performance (DOF, contrast and optical proximity effect, etc.) of dense/sparse/rough patterns. Performance equations (linear optimization) with performance map (sensitivity) are utilized to search the best combination of intensity for each assist source. For C/H pattern, the optimization procedure is modified to solve the non-linearity and non-continuity problems on the relationship between assist source intensity and each imaging performance. Finally, optimized source shapes have been successfully demonstrated and verified on 40 nm node NAND FLASH L/S and C/H critical patterns despite the simplicity of the optimization method, without utilizing SO dedicated software.
A discussion of approaches for fitting asymmetric signals in X‐ray photoelectron spectroscopy (XPS), noting the importance of Voigt‐like peak shapes (2021)

Although the fundamental, theoretical peak shape in X‐ray photoelectron spectroscopy (XPS) is Lorentzian, some Gaussian character is observed in most XPS signals. Additional complexity in the form of asymmetry is also found in many XPS signals, which requires more advanced peak shapes than the traditional, symmetric Voigt and Gaussian‐Lorentzian sum and product (pseudo‐Voigt) functions. Here, we discuss the merits and disadvantages of four approaches that have been used to introduce asymmetry into XPS peak shapes: addition of a decaying exponential tail to a symmetric peak shape, the Doniach‐Sunjic peak shape, the double‐Lorentzian, DL, function, and the LX peak shapes, which include the asymmetric Lorentzian (LA), finite Lorentzian (LF), and square Lorentzian (LS) functions. The Doniach‐Sunjic peak shape is the only asymmetric, synthetic peak that has a theoretical basis. However, it has an infinite integral, which makes it problematic in quantitative work. The mathematical bases for the LX and DL peak shapes are discussed, and practical examples of their use in peak fitting are presented. The case is made for the Voigt function being the most appropriate function for XPS peak fitting, in general, which suggests that a modified Voigt function may be the most reasonable for fitting asymmetric XPS signals. The LX and DL functions include convolution with a Guassian, which, with the exception of the LS function, makes them Voigt‐like functions. The sources of asymmetry and its complexity are discussed. It is emphasized that not every asymmetric spectrum should be fit with an asymmetric peak shape.
Radial basis function neural network for approximation and estimation of nonlinear stochastic dynamic systems (1994)

This paper presents a means to approximate the dynamic and static equations of stochastic nonlinear systems and to estimate state variables based on radial basis function neural network (RBFNN). After a nonparametric approximate model of the system is constructed from a priori experiments or simulations, a suboptimal filter is designed based on the upper bound error in approximating the original unknown plant with nonlinear state and output equations. The procedures for both training and state estimation are described along with discussions on approximation error. Nonlinear systems with linear output equations are considered as a special case of the general formulation. Finally, applications of the proposed RBFNN to the state estimation of highly nonlinear systems are presented to demonstrate the performance and effectiveness of the method.
Design optimization of Tm-doped large-mode area fibers for power scaling of 2 μm lasers and amplifiers (2017)

Large-mode area (LMA) thulium-doped fibers (TDF) are one of the key components when designing 2&mu;m laser and amplifier systems aiming to further scale deliverable output powers. Current design limitations of LMA TDF’s affecting optical-to-optical efficiency and output beam quality are well-understood. In the present work, design optimizations focused on the core and pedestal waveguides of the active fiber are proposed. Using experimental and numerical tools, the effect of splice-induced heat on the refractive index profile of the active fiber is investigated. We demonstrate that fibers designed with larger pedestal-to-core ratios suffer less index distortions during splicing allowing the end-user to achieve high coupling efficiencies and high beam qualities in a reliable fashion.
ChemInform Abstract: VOSO4 Catalyzed Highly Efficient Synthesis of Benzimidazoles, Benzothiazoles, and Quinoxalines. (2016)

Abstract The catalyst of the scalable reaction procedure is recycled and reused in three additional catalytic cycles with slight loss of its activity.