gebhart/patrepeval huggingface dataset:
Effects of ultrasonic waves on the generation and reactivities of some metal powders (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of ultrasonic waves on the generation and reactivities of some metal powdersPhilip. Boudjouk, Dennis P. Thompson, Walter H. Ohrbom, and Byung Hee. HanCite this: Organometallics 1986, 5, 6, 1257–1260Publication Date (Print):June 1, 1986Publication History Published online1 May 2002Published inissue 1 June 1986https://pubs.acs.org/doi/10.1021/om00137a035https://doi.org/10.1021/om00137a035research-articleACS PublicationsRequest reuse permissionsArticle Views240Altmetric-Citations42LEARN 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
A health-check model for autonomic systems based on a pulse monitor (2006)

Like the autonomic responses in the human body, autonomic computing systems recognize their own health problems and, where possible, respond to correct them. Failing that, external help is required. The purpose of this paper is to consider how autonomic systems might be structured to facilitate health monitoring. The approach uses a ‘pulse’ monitor for each autonomic element, which provides a reflex reaction facility and basic information on the current state (health) of that element. The pulse mechanism extends the NASA beacon monitor concept. The different ways that pulse information might be communicated and used are examined. The discussion is illustrated with a personal computing example.
Design Optimization of High-Speed and Low-Power Operational Transconductance Amplifier Using gm/ID Lookup Table Methodology (2011)

We propose a design optimization flow for a high-speed and low-power operational transconductance amplifier (OTA) using a gm/ID lookup table design methodology in scaled CMOS. This methodology advantages from using gm/ID as a primary design parameter to consider all operation regions including strong, moderate, and weak inversion regions, and enables the lowest power design. SPICE-based lookup table approach is employed to optimize the operation region specified by the gm/ID with sufficient accuracy for short-channel transistors. The optimized design flow features 1) a proposal of the worst-case design scenario for specification and gm/ID lookup table generations from worst-case SPICE simulations, 2) an optimization procedure accomplished by the combination of analytical and simulation-based approaches in order to eliminate tweaking of circuit parameters, and 3) an additional use of gm/ID subplots to take second-order effects into account. A gain-boosted folded-cascode OTA for a switched capacitor circuit is adopted as a target topology to explore the effectiveness of the proposed design methodology for a circuit with complex topology. Analytical expressions of the gain-boosted folded-cascode OTA in terms of DC gain, frequency response and output noise are presented, and detailed optimization of gm/IDs as well as circuit parameters are illustrated. The optimization flow is verified for the application to a residue amplifier in a 10-bit 125MS/s pipeline A/D converter implemented in a 0.18µm CMOS technology. The optimized circuit satisfies the required specification for all corner simulations without additional tweaking of circuit parameters. We finally explore the possibility of applying this design methodology as a technology migration tool, and illustrate the failure analysis by comparing the differences in the gm/ID characteristics.
Reproducibility and variability of digital thermal monitoring of vascular reactivity (2011)

In a controlled environment, the repeatability of DTM is excellent. DTM can be used as a reproducible and operator-independent test for non-invasive measurement of vascular function.
ChemInform Abstract: BUILDING BLOCKS FOR OLIGOSACCHARIDES. PART VIII. SYNTHESIS OF OLIGOSACCHARIDE E UNITS OF BLOOD GROUP SUBSTANCES WITH TERMINAL α‐LINKED D‐GALACTOSAMINE GROUPS (1977)

Abstract Die Synthese biologisch interessanter Ligosaccharide wird untersucht.
Interferometric measurements of chromatic and polarisation mode dispersion in highly birefringent single-mode fibres (1987)

Interferometric measurements on highly birefringent single-mode fibres have been performed. The group delay spectrum of each polarisation mode is independently measured over the whole 1.0–1.73μm spectral range. The polarisation mode dispersion is obtained by direct subtraction of the group delay spectra.
Orchestrating coordination: Reducing rework in complex product development (2012)

Rework is a persistent problem in many complex product development projects. Major strategies that have been proposed to reduce rework in complex product development projects are reducing the task interdependencies, i.e., modularizing the design, and improving the communication between participating engineers, i.e., co-locating them and encouraging collaboration. Yet, some recent industrial projects could not follow either strategy due to external constraints, with dramatic negative consequences for product development performance. Building on these observations, we develop a simulation game to test various strategies to mitigate the detrimental misalignment effects when a complex product with an integral product architecture is developed by multiple firms forming a modular supply chain. Our simulation experiments replicate system behavior observed in real systems with much higher levels of complexity, and revised strategies using faster information sharing, and temporary acceptance of suboptimal partial solutions show a significant product development performance improvement. We discuss implications for research and practice in the management of complex product development projects.
Wicking and chromatographic properties of highly porous functionalised calcium carbonate coatings custom-designed for microfluidic devices (2019)

Abstract Devising controlled microfluidic liquid transfer in porous diagnostic devices presents challenges in respect to differentiation between surface/film flow and wicking within the bulk of the substrate. Rapid liquid translation is predominantly driven by film flow mechanisms in such devices. However, the more complex needs of in-pore reactivity between test fluids and reactive agents, followed typically by the need to perform chromatographic separation of eluents, demands the often contradictory facility of rapid spatial transport whilst allowing exposure to high internal surface area, i.e. by the mechanism of internal bulk wicking. The key parameters are permeability to saturated flow relatively far behind the wetting front, limiting the delivery rate of liquid to the wetting front, and capillarity within an ideally parallel high surface area pore network. We demonstrate a way to balance these properties using a coating with a discretely bimodal pore structure, whereby bulk flow is controlled by interparticle connectivity and interpore throat size, and capillarity and surface reactivity by ultrafine intraparticle pores. The distance travelled at time t by the wetting front is expressed as a power law function, t p . Evaluating p provides a measure as to the closeness of dependence on viscous-controlled bulk flow permeability as p tends to 0.5, i.e. √ t . Deviation from bulk flow dependence indicates the presence of pore wall film flow or inertial plug flow, possibly combined with evaporation and/or material sorption onto the pore wall surface or into the binder matrix. In this context, a variety of coating formulations are evaluated, and wicking rate is shown to vary strongly as a function of the binder impact on interparticle pore connectivity and on the absorption behaviour of the binder itself. Microfibrillated cellulose is shown to be a highly suitable binder for microfluidic diagnostic coatings. Reactivity within the coating is illustrated using charge-driven chromatographic colorant separation.
Highly stable digital holographic microscope using Sagnac interferometer (2015)

Interferometric microscopy has grown into a very potent tool for quantitative phase imaging of biological samples. Among the interfermetric methods, microscopy by digital holography is one of the most effective techniques, especially for studying dynamics of cells. Imaging of cell fluctuations requires digital holographic setups with high temporal stability. Common path setups in which the object and the reference beams encounter the same set of optical elements provide better temporal stability compared to two-beam setups. Here, we present a compact, easy-to-implement, common path digital holographic microscope based on Sagnac interferometer geometry. The microscope is implemented using a diode laser module employing a CCD array or a webcam sensor to record holograms. The system was tested for three-dimensional imaging capability, numerical focusing ability, and temporal stability. Sub-nanometer temporal stability without external vibration isolation components was obtained in both cases. The higher temporal stability makes the microscope compatible to image cell fluctuations, which is demonstrated by imaging the oscillation of the cell membrane of human red blood cells.
Semimetal/Semiconductor Nanocomposites for Thermoelectrics (2011)

In this work, we present research on semimetal-semiconductor nanocomposites grown by molecular beam epitaxy (MBE) for thermoelectric applications. We study several different III-V semiconductors embedded with semimetallic rare earth-group V (RE-V) compounds, but focus is given here to ErSb:In(x)Ga(1−x)Sb as a promising p-type thermoelectric material. Nanostructures of RE-V compounds are formed and embedded within the III-V semiconductor matrix. By co-doping the nanocomposites with the appropriate dopants, both n-type and p-type materials have been made for thermoelectric applications. The thermoelectric properties have been engineered for enhanced thermoelectric device performance. Segmented thermoelectric power generator modules using 50 μ m thick Er-containing nanocomposites have been fabricated and measured. Research on different rare earth elements for thermoelectrics is discussed.
Assembly and Characterization of Biomolecular Memristors Consisting of Ion Channel-doped Lipid Membranes (2019)

The ability to recreate synaptic functionalities in synthetic circuit elements is essential for neuromorphic computing systems that seek to emulate the cognitive powers of the brain with comparable efficiency and density. To date, silicon-based three-terminal transistors and two-terminal memristors have been widely used in neuromorphic circuits, in large part due to their ability to co-locate information processing and memory. Yet these devices cannot achieve the interconnectivity and complexity of the brain because they are power-hungry, fail to mimic key synaptic functionalities, and suffer from high noise and high switching voltages. To overcome these limitations, we have developed and characterized a biomolecular memristor that mimics the composition, structure, and switching characteristics of biological synapses. Here, we describe the process of assembling and characterizing biomolecular memristors consisting of a 5 nm-thick lipid bilayer formed between lipid-functionalized water droplets in oil and doped with voltage-activated alamethicin peptides. While similar assembly protocols have been used to investigate biophysical properties of droplet-supported lipid membranes and membrane-bound ion channels, this article focuses on key modifications of the droplet interface bilayer method essential for achieving consistent memristor performance. Specifically, we describe the liposome preparation process and the incorporation of alamethicin peptides in lipid bilayer membranes, and the appropriate concentrations of each constituent as well as their impact on the overall response of the memristors. We also detail the characterization process of biomolecular memristors, including measurement and analysis of memristive current-voltage relationships obtained via cyclic voltammetry, as well as short-term plasticity and learning in response to step-wise voltage pulse trains.
Measurement of circular dichroism of ferroelectric fresnoite Ba 2 Si 2 TiO 8 (2003)

The urgent goal of the optical polarimetry of solids is simultaneous and accurate measurements of circular dichroism together with circular birefringence. Needless to say, measurements of circular phenomena are extremely difficult compared with those of linear ones. As for circular birefringence, 170 years elapsed since its discovery by Arago until the development of the HAUP method, by which the accurate measurements of the gyration tensor components of a solid became possible for the first time. Subsequent to appearance of the HAUP method, attempts to extend the HAUP theory to being applicable for measurements of circular dichroism of crystals were followed by several authors. However any applications to real crystal were not fully successful. We completed fresh the theory of the extended HAUP. This paper reports the extended HAUP measurement of both circular birefringence and dichroism of fresnoite Ba<sub>2</sub>Si<sub>2</sub>TiO<sub>8</sub>. It is clearly found that the circular dichroism abruptly appears at the transition temperature, where the crystal changes from the high temperature 4mm phase to the low temperature mm2 phase. It increases with decrease of temperature together with circular birefringence. This is the first proof that the HAUP method provides with sufficiently accurate data of circular dichroism of crystals. It is important to note that the circular dichroism affects only &#952;<sub>0</sub>, which is one of the salient parameter characterizing the HAUP method. It means that the HAUP is an exclusive method for measuring circular dichroism of crystals.
Supplementary Video S2B from First-in-Human Study of the Radioligand &lt;sup&gt;68&lt;/sup&gt;Ga-N188 Targeting Nectin-4 for PET/CT Imaging of Advanced Urothelial Carcinoma (2023)

&lt;p&gt;40 min full dynamic Total-body PET imaging of Patient 8&lt;/p&gt;
Interplay between the growth temperature, microstructure, and optical properties of GaInNAs quantum wells (2003)

We investigated the influence of the growth temperature (Tgr) on the microstructure and on the optical properties of GaInNAs quantum wells (QWs). By comparing the structural information (transmission electron microscopy) with the optical properties (photoluminescence spectroscopy), we demonstrate that high photoluminescence efficiency of GaInNAs QWs is achieved only when the two-dimensional growth mode is preserved, which can be obtained at a low Tgr even for high In content. We also show composition modulations in the GaInNAs QWs, which can lead to the interface roughness.
Extraclassical Receptive Field Phenomena and Short-Range Connectivity in V1 (2005)

Extraclassical receptive field phenomena in V1 are commonly attributed to long-range lateral connections and/or extrastriate feedback. We address 2 such phenomena: surround suppression and receptive field expansion at low contrast. We present rigorous computational support for the hypothesis that the phenomena largely result from local short-range (< 0.5 mm) cortical connections and lateral geniculate nucleus input. The neural mechanisms of surround suppression in our simulations operate via (A) enhancement of inhibition, (B) reduction of excitation, or (C) action of both simultaneously. Mechanisms (B) and (C) are substantially more prevalent than (A). We observe, on average, a growth in the spatial summation extent of excitatory and inhibitory synaptic inputs for low-contrast stimuli. However, we find this is neither sufficient nor necessary to explain receptive field expansion at low contrast, which usually involves additional changes in the relative gain of these inputs.
&lt;p&gt;Construction and in vivo/in vitro evaluation of a nanoporous ion-responsive targeted drug delivery system for recombinant human interferon α-2b delivery&lt;/p&gt; (2019)

The results suggested a novel sustained-release formulation with higher drug availability and better lung targeting from CS-rhIFNα-2b-CCPM compared to the reference (the stock solution of rhIFNα-2b), and, thus, should be further studied.
Dual stimuli-responsive dendritic-linear block copolymers (2012)

Dendritic-linear block copolymers that have pH responsive poly(benzyl ether) dendrons and temperature responsive PiPrOx chains have been designed by copper-mediated click reactions. These copolymers exhibit sharp thermal transitions with a wide range of pH-dependent thermal transition temperatures.
Material metrics for laser cooling of solids (2008)

The material metrics for optimal laser cooling of ion-doped solids are derived using atomic and molecular dynamics properties of the constituents. The anti-Stokes process is modeled as an optical phonon coupling of the bound electron, followed by a photon absorption. The transition dipole moment is estimated using a simplified charge-displacement model and the Judd--Ofelt theory of rare-earth ions both suggesting that transitions with high-energy gaps and similar angular momentum states should be used. The electron-phonon coupling is interpreted as a derivative of electronic energy with respect to displacement of the nearest neighboring ligands whose stretching mode frequency is approximated using the molecular data. The Debye-Gaussian model is used for the phonon density of states of diatomic crystal. Then, the Fermi golden rule is used for photon-induced, phonon-assisted electronic transition probability and applied to the cooling rate equation by defining a phonon-assisted transition dipole moment. Based on the material metrics, an example blend is investigated for its cooling performance and a general guide is proposed for selection of better performing laser cooling hosts. Furthermore, the cooling rate limits are discussed and three distinct characteristic times are identified with the photon-induced, phonon-assisted transition time controlling the rate. The metrics guide the selection of host materials for optimal cooling, and predict a noticeable increase in the absorption rate when using a blend of cation atoms.
Natural and Artificial Weathering of EPDM Compounds Used in Outdoor High Voltage Insulation (1981)

Results are presented on the weathering behavior of EPDM compounds suitable as a protective housing material for HV plastic insulators. Two accelerated tests have been used: thermal aging under pressurized O2, and Xenon lamp irradiation. Structural changes are followed through swelling and ATR infra-red speotroscopy measurements. The efficiency of various UV absorbers is compared with respect to surface and bulk protection. The resistance to erosion and tracking of one particular protected compound is followed as a function of natural weathering exposure; it is found that in spite of apparent surfaceodifi modifications, this electrical property is not altered after several years of outdoor exposure.
Novel opiates and antagonists. 4. 7-Alkanoylhydromorphone (1982)

A series of 7-alkanoyl-substituted hydromorphone derivatives were prepared by acylation of the morpholine enamines. The most potent compound (6i) of the series was found to have agonist activity of the same order of magnitude as that of buprenorphine. The N-cyclopropylmethyl-substituted series was found to exhibit structure-activity relationships for analgesia and narcotic antagonism similar to those of the endo-ethanotetrahydrooripavines.
ChemInform Abstract: Cyclic O,N‐Acetals (2009)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 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.
Collective Motion of Self-Propelled Particles: Kinetic Phase Transition in One Dimension (1999)

We demonstrate that a system of self-propelled particles exhibits spontaneous symmetry breaking and self-organization in one dimension, in contrast with previous analytical predictions. To explain this surprising result we derive a new continuum theory that can account for the development of the symmetry broken state and belongs to the same universality class as the discrete self-propelled particle model.
Vincristine and carboplatin chemotherapy for unresectable and/or recurrent low‐grade astrocytoma of the brainstem (2010)

The efficacy of this chemotherapy regimen in this series supports its role in children with progressive unresectable LGG of brainstem.
ParaSCAN: A Static Profiler to Help Parallelization (2014)

Parallelizing software often starts by profiling to identify program paths that are worth parallelizing. Static profiling techniques, e.g. hot paths, can be used to identify parallelism opportunities for programs that lack representative inputs and in situations where dynamic techniques aren't applicable, e.g. parallelizing compilers and refactoring tools. Existing static techniques for identification of hot paths rely on path frequencies. Relying on path frequencies alone isn't sufficient for identifying parallelism opportunities. We propose a novel automated approach for static profiling that combines both path frequencies and computational weight of the paths. We apply our technique called ParaSCAN to parallelism recommendation, where it is highly effective. Our results demonstrate that ParaSCAN's recommendations cover all the parallelism manually identified by experts with 85% accuracy and in some cases also identifies parallelism missed by the experts.
Precise Time and Data Transfer Test Facility Using Optical Fiber Links in S-band and C-band (2020)

We perform the results implemented via time and data transfer using single-mode optical fiber. We use White Rabbit device which is an implementation of Precision Time Protocol (PTP) intended for the synchronization with sub-nanosecond precision. Our work briefs with the implementation of time transfer both in S-band and C-band. The work more focus on every timing system needs a primary time source which serves as a reference for all the nodes. In most sources the reference clock must fulfill rigorous requirements for the long-term stability. In this work atomic clock has been chosen as primary clock source.