gebhart/patrepeval huggingface dataset:
Impact of Reducing Channel Spacing from 50GHz to 37.5GHz in Fully Transparent Meshed Networks (2014)

Accounting for tight filtering impairments, we show why the ideal extra capacity of 33% brought by 37.5GHz channel spacing (compared to 50GHz) may be significantly reduced under physical constraints of fully transparent meshed networks.
Preconcentration-determination of Cr(VI) in Water by Online (2008)

A method is proposed for determining trace Cr(Ⅵ) in water by online preconcentration.ZJ-1a automatic metal element analyzer was utilized in this experimentation.Cr(Ⅵ) can be determined with diphenyl carbazide as color developing reagent and 540 nm as wavelengh by Flow Injection-spectrophotometric analysis.Under the optimum conditions,work curve with good linear was obtained,the linear ranges were 0.2-8 μg/L,the detection limit was 0.122 μg/L,and relative standard deviation(RSD) was 4.53%.This method was applied to analyze Cr(Ⅵ) in nature water,and the range of recovery percentages was between 95.6% and 100.0%.The characteristics of this method were simple,rapid,high sensitive and on-line without water sample pretreated.
Potentiation of neurite outgrowth and reduction of apoptosis by immunosuppressive agents: implications for neuronal injury and transplantation (2006)

Immunosuppressive agents such as cyclosporin A, FK506, and dexamethasone can potentiate neurite outgrowth and protect against apoptotic cell death in a human postmitotic neuronal cell line. Such effects may have implications for lessening neuronal injury after neurotrauma, stroke, or neurodegeneration.
The Chemistry of halides, pseudo-halides, and azides (1983)

Partial table of contents: PART 1. General and Theoretical Aspects of the C--X Bonds (X = F, Cl, Br, L): Integration of Theory and Experiment (P. Politzer & J. Murray). Conformational and Chiroptical Properties of Alkyl Halides (J. Brewster). Mass Spectra and Gas-Phase Ion Chemistry of Halogen-Containing Compounds (C. Paradisi & U. Vettori). Electron Spin Resonance and Nuclear Quadrupole Resonance (M. Geoffroy & E. Lucken). Thermochemistry of Halogenated Organic Compounds (S. Slayden, et al.). Syntheses and Uses of Isotopically Labelled Organic Halides (M. Zielinski & M. Kanska). The Formation of the C--F Bond--The Last Twelve Years (S. Rozen). Some Synthetic Uses of Halides (J. Hoyle). Functionalization of Organic Molecules by Xenon Fluorides (M. Zupan). PART 2. Radiation Chemistry (Z. Alfassi). Pyrolysis of Organic Halides (G. Chuchani). Halonium Ions (G. Koser). Reactions of Organic Halides Mediated by Transition Metal Compounds (J. Green). Recent Advances in the SRN1 Reaction of Organic Halides (R. Rossi, et al.). Atmospheric Chemistry of Organic Halides (J. Francisco & I. Williams). Indexes.
An introduction to biomimetics: A structural viewpoint (1994)

Biomimetics is a newly emerging interdisciplinary field in materials science and engineering and biology in which lessons learned from biology form the basis for novel technological materials. It involves investigation of both structures and physical functions of biological composites of engineering interest with the goal of designing and synthesizing new and improved materials. This paper discusses microarchitectural aspects of some structural biocomposites, presents microstructural criteria for future materials design and processing, and identifies areas of future research.
System of automated gas-exchange analysis for the investigation of metabolic processes (2000)

Conventional gas-exchange instruments are confined to the measurement of O(2) consumption (VO(2)) and CO(2) production (VCO(2)) and are subject to a variety of errors. This handicaps the performance of these devices at inspired O(2) fraction (FI(O(2))) > 0.40 and limits their applicability to indirect calorimetry only. We describe a device based on the automation of the Douglas bag technique that is capable of making continuous gas-exchange measurements of multiple species over a broad range of experimental conditions. This system is validated by using a quantitative methanol-burning lung model modified to provide reproducible (13)CO(2) production. The average error for VO(2) and VCO(2) over the FI(O(2)) range of 0.21-0.8. is 2.4 and 0.8%, respectively. The instrument is capable of determining the differential atom% volume of known references of (13)CO(2) to within 3.4%. This device reduces the sources of error that thwart other instruments at FI(O(2)) > 0. 40 and demonstrates the capacity to explore other expressions of metabolic activity in exhaled gases related to the excretion of (13)CO(2).
Frequency-Selective Link Adaptation using Duo-Binary Turbo Codes in OFDM Systems (2007)

This paper is devoted to a novel frequency-selective link adaptation (LA) strategy developed in the WINNER Integrated Project, which aims to provide a new radio interface for future 4G wireless communication systems. For a single-user adaptation of modulation and code rate in a coded OFDM system, the presented bit-loading algorithm offers performance results very close to the optimum solution of the well-known Hughes-Hartogs bit and power loading algorithm, which is verified by simulations. Efficient rate-compatible punctured duo-binary turbo codes (DBTC) have been used in evaluations. The adaptation is performed in two steps: first, adaptive QAM mapping is done on subcarrier groups in frequency direction, according to a short-term channel quality information. Then, an average code rate is calculated for the entire set of used subcarriers with heterogeneous modulation alphabets. This method results in moderate system complexity while offering excellent performance.
Genome of Bovine Herpesvirus 5 (2003)

Here we present the complete genomic sequence of bovine herpesvirus 5 (BHV-5), an alphaherpesvirus responsible for fatal meningoencephalitis in cattle. The 138390-bp genome encodes 70 putative proteins and resembles the alpha2 subgroup of herpesviruses in genomic organization and gene content. BHV-5 is very similar to BHV-1, the etiological agent of infectious bovine rhinotracheitis, as reflected by the high level of amino acid identity in their protein repertoires (average, 82%). The highest similarity to BHV-1 products (>or=95% amino acid identity) is found in proteins involved in viral DNA replication and processing (UL5, UL15, UL29, and UL39) and in virion proteins (UL14, UL19, UL48, and US6). Among the least conserved (<or=75%) are the homologues of immediate-early (IE) proteins BICP0, BICP4, and BICP22, the three proteins being longer in BHV-5 than in BHV-1. The structure of the BHV-5 latency-related (LR) region departs markedly from that of BHV-1 in both coding and transcriptional regulatory regions. Given the potential significance of IE genes and the LR region in virus-neuron interactions, it is likely these differences contribute to BHV-5 neuropathogenicity.
Design of a neutrally buoyant self-powered multi-parameter sensor for data logging in flow applications (2009)

Experimental acquisition of spatially distributed parameters in large scale vessels and containers is of great interest for investigation and optimization of plants and processes such as stirred tanks, chemical reactors or bioreactors. For the measurement of process parameters in a stirred fermentation biogas reactor we developed the concept of neutrally buoyant self-powered sensor particles. The prototype sensor performs logging of temperature, absolute pressure and 3D-acceleration data and is integrated in a robust capsule which gives a balance between buoyancy and gravitation with respect to the liquid process substrate. In an initial test of the developed prototype its autonomous operation has been successfully proved showing feasibility for future application in a biogas reactor.
Synthesis and characterization of functional porous organic polymers as efficient metallocene catalyst supports (2016)

Porous P(HEMA-<italic>co</italic>-DVB) particles with tunable pore structure and morphology were prepared by a dispersion polymerization strategy.
Global standardization efforts of BWA systems based on cable modem (2002)

Data-over-Cable Service Interface Specifications (DOCSIS) developed by Cable Labs has been adopted by the International Telecommunication Union (ITU) as a draft Recommendation in ITU-T and ITU-R. Nortel Networks has been spearheading the BWA standards efforts in ITU-R, ITU-T and in IEEE 802.16, that uses the cable modem specifications as a basis for wireless access systems in order to achieve economies of scale. The cable modem technical parameters for physical and media access control layers have been adapted to the wireless environment to support a bidirectional wireless access system for interactive services. This paper presents the BWA (broadband wireless acceas) physical and media access control (MAC) standardization efforts that are in progress in IEEE 802.16 in the 10-40 GHz band, with a focus on the LMDS (local multipoint distribution service) band in the U.S. Nortel Networks is leading the effort to standardize the DOCSIS based parameters for PHY/MAC standardization in IEEE 802.16. The services that will be supported by BWA systems include fast Internet access (supporting both IP and ATM traffic), video and interactive television. The key features of this BWA system are multiple quality of service (QoS) support, dynamic service management, support of real-time services along with cryptographic authentication of the users for protection against theft of service.
Multirate spectral estimation (2002)

This article introduces a mathematical theory for estimating the power spectral density (PSD) of a random signal based on low-sampling-rate measurements. We formulate the problem using a mathematical model where an observer sees a discrete-time WSS (wide-sense stationary) random signal x(n) through a bank of measurement devices or sensors. Each sensor outputs a measurement signal v/sub i/(n) whose sampling rate is only a fraction of the sampling rate assumed for the original non-observable signal. Knowing statistics of v/sub i/(n) is not, in general, sufficient to specify the PSD of x(n) uniquely. Therefore, the problem of multirate spectral estimation is mathematically ill-posed. We show that it is possible to convert the multirate spectral estimation problem into a mathematically well-posed one using the maximum entropy principle. Moreover, we obtain a closed-form expression for the PSD estimate that results from applying this principle and show that it is unique.
Multidetector analysis system (1999)

The multidetector analysis system (MDAS) is a new approach to the nondestructive analysis (NDA) of fissile and other radioactive material. The system uses multiple detectors of two different types to determine fissile isotopic content and quantity present in entire reactor fuel assemblies or waste drums measured by the system. The methods used in MDAS include coincidence spectroscopy with large detector arrays, coincidence gating, list-mode data acquisition, fast liquid scintillators, and pulse-shape discrimination. Although, MDAS relies on the fundamental physics and fast coincidence detection methods used by the nuclear and high-energy research communities, this application of determining the ratios of fissile isotopes is unique to this system and has been patented. Development of MDAS has been supported primarily by the US Department of Energy (DOE) spent nuclear fuel program. Characterization of spent reactor fuel, transuranic waste, and other fissile material is becoming increasingly important for environmental cleanup and weapons safeguards. Traditional radioanalysis measurements that relied on sampling and destructive analysis methods are less practical than they once were because of closing of facilities and hot cells. Traditional NDA measurements, which primarily treated radiation as a continuous emission of energy, are also becoming obsolete as spectral information is required for the mostmore » detailed characterization.« less
Synthesis and Characterization of End-Grafted Polysilane on a Substrate Surface (1998)

ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTSynthesis and Characterization of End-Grafted Polysilane on a Substrate SurfaceKeisuke Ebata, Kazuaki Furukawa, and Nobuo MatsumotoView Author Information NTT Basic Research Laboratories Atsugi, Kanagawa 243-0198, Japan Cite this: J. Am. Chem. Soc. 1998, 120, 29, 7367–7368Publication Date (Web):July 8, 1998Publication History Received10 March 1998Published online8 July 1998Published inissue 1 July 1998https://pubs.acs.org/doi/10.1021/ja980802ihttps://doi.org/10.1021/ja980802irapid-communicationACS PublicationsCopyright © 1998 American Chemical SocietyRequest reuse permissionsArticle Views406Altmetric-Citations40LEARN 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 SUBJECTS:Absorption,Molecules,Polymers,Solvatochromism,Solvents Get e-Alerts
Consideration of wave optical phenomena for retinal images in laser safety evaluations (2019)

Laser systems emitting in the visible and near infrared wavelength range between 400 nm and 1400 nm represent a potential hazard for the retina. The accessible emission limits depend on the angular subtense of the apparent source which is determined by the size of the retinal image. Usually, the retinal image is calculated using geometric optical propagation methods, e.g. ray tracing techniques. In case of coherent laser radiation this might be insufficient since wave optical phenomena can influence the retinal image. Especially by the presence of apertures, diffraction needs to be taken into account. In this paper we analyse the impact of wave optics for laser safety evaluations and show the difference to geometric optical calculations. Both propagation methods are compared for relevant examples.
Effect of Multi-phase Oxide Particles on TiN Crystallization and Solidification Structure in Ti-Added Ferritic Stainless Steel (2012)

The effect of TiN crystallization on the solidification structure of Ti-added ferritic stainless steel were studied in Ti/Mg, Ti/Ca, Ti/Mg/Al, Ti/Ca/Al, Al/Ti/Ca and Ti/Mg(Ca)/Ca(Mg) deoxidations carried out at 1600°C using an Fe–17.5(11)%Cr–0.25%Mn–0.20%Si–0.2 to 0.3%Ti–0.01%C–0.003 to 0.04% N alloy on a mass percent basis. Compositional analysis of the oxide particles and TiN layers generated during the deoxidation using scanning electron microscopy in conjunction with an electron probe microanalyzer, coupled with observation of the morphology and homogeneity of complex TiN+oxide particles, revealed that the TiN layers were formed through the postulated mechanism of the co-crystallization of TiN and oxide. Ti/Mg and Ti/Mg/Al deoxidations performed in an Al2O3 crucible yielded a very fine solidification structure at high N contents (>200 ppm) because of the presence of complex particles consisting of the TiN layer with a small amount of oxide phases. In the Ti/Ca, Ti/Ca/Al and Al/Ti/Ca deoxidations using an Al2O3 crucible, a relatively fine solidification structure was observed when a low oxide content was present in the TiN layer. Ti/Ca/A and Al/Ti/Ca deoxidations carried out using an MgO crucible in the presence or absence of MgO–CaO–Al2O3 slag gave rise to solidification structures that were relatively finer in comparison with those obtained using an Al2O3 crucible. Very fine structures were observed at low N contents (36 to 80 ppm) in the Ti/Mg/Ca and Ti/Ca/Mg deoxidations using an Al2O3 crucible because of the effective surface composition of the oxide particles for δ-phase solidification.
The essential role of phorbol ester-sensitive protein kinase C isoforms in activation-induced cell death of Th1 cells (1999)

Th1 and Th2 cells, which were induced from naive T cells of TCR-transgenic mice, showed differential sensitivity to activation-induced cell death (AICD) triggered by stimulation with anti-CD3 monoclonal antibody. The Th1 cells showed more rapid AICD than Th2 cells. This accelerated AICD of Th1 cells was strongly blocked by protein kinase C (PKC) inhibitors (H-7 or GF 109203X). Moreover, long-term treatment of Th1 cells with phorbol 12-myristate 13-acetate (PMA) caused the abrogation of anti-CD3-induced AICD in parallel with the disappearance of PMA-sensitive PKC isoforms such as PKC alpha, gamma, epsilon and theta. Therefore, it was clearly demonstrated that PMA-sensitive PKC isoforms are essential for AICD of Th1 cells. The different susceptibility to AICD between Th1 and Th2 cells was not due to their differential expression levels of PMA-sensitive PKC isoforms but appeared to be due to their differential requirement for PMA-sensitive isoforms in the up-regulation of Fas ligand which is involved in suicide killing of activated Th1 cells.
The Role of Mercury in Cardiovascular Disease (2014)

form of methyl and ethyl mercury is primarily from fish, sea mammals and thimersol vaccines. Although dental amalgams have historically been the major source of human exposure, fish and sea mammals are becoming an increasing environment source of potential mercury toxicity
Averting the legacy of kidney disease: Focus on childhood (2016)

Author(s): Ingelfinger, JR; Kalantar-Zadeh, K; Schaefer, F; World Kidney Day Steering Committee
PWM voltage source inverter rating with the power distribution law for a DFIM speed drive (2011)

The main idea of this paper is a steady of power exchange in a Doubly Fed Induction Machine (DFIM), operating in motor mode, and supplied with two PWM inverters in both sides. An active power distribution law between the stator and rotor is developed and the adequate rotor and stator inverters ratings are studied. This active power distribution law imposes a connection between rotor and stator frequencies that allows a two inverters dimension to a half of DFIM power for high power applications. A new four quadrant drive operation is considered and a comparison with the squirrel cage induction motor (SCIM) drive, operating under the same output power conditions, is made. Simulation results, obtained with Matlab-Simulink software, illustrate the static and dynamic performance of this DFIM system with the power distribution law.
Developing a full-body finite element model and its preliminary validation for seating comfort (2022)

Human body finite element (FE) models can be used for seating comfort assessment by providing biomechanical-related parameters such as internal loads and soft-tissue deformations. However, most of the published models were only validated under a condition far from a real seating situation. Their ability to be repositioned may also be limited. In recent years, an open-source PIPER software package has been developed to help personalize and position human body models for crash simulation. We have morphed the PIPER Child model into an adult FE model. In this paper, we present how the initially morphed adult FE model was adapted for assessing seating comfort and validated for different seating conditions. Experimental data was collected using a reconfigurable experimental seat and pressure mats. Four seat configurations were defined with the seat pan angle (SPA) from 0° to 15° (5° in steps) and seat pan to seat backrest angle (SP2BA) kept to 100°. Simulated results in terms of seat contact area (ContactA), peak pressure (PeakP), mean pressure (MeanP), and pressure profiles showed good agreement with experimental observations. The full-body FE model developed and validated in this work will be used as a reference for further development of scalable and positionable models using the PIPER software framework. The model will be open source to facilitate reuse and further improvements.
On Minimum-time Paths of Bounded Curvature with Position-dependent\n Constraints (2013)

We consider the problem of a particle traveling from an initial configuration\nto a final configuration (given by a point in the plane along with a prescribed\nvelocity vector) in minimum time with non-homogeneous velocity and with\nconstraints on the minimum turning radius of the particle over multiple regions\nof the state space. Necessary conditions for optimality of these paths are\nderived to characterize the nature of optimal paths, both when the particle is\ninside a region and when it crosses boundaries between neighboring regions.\nThese conditions are used to characterize families of optimal and nonoptimal\npaths. Among the optimality conditions, we derive a "refraction" law at the\nboundary of the regions that generalizes the so-called Snell's law of\nrefraction in optics to the case of paths with bounded curvature. Tools\nemployed to deduce our results include recent principles of optimality for\nhybrid systems. The results are validated numerically.\n
RESTRICTION OF IN VIVO GENETIC TRANSCRIPTION TO ONE OF THE COMPLEMENTARY STRANDS OF DNA (1963)

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
Several Aspects of the Search for Anticonvulsants (2004)

Abstract For Abstract see ChemInform Abstract in Full Text.
Computational Fluid Dynamics Simulation of a Tubular Aerosol Reactor for Solar Thermal ZnO Decomposition (2007)

Computational fluid dynamics simulations were performed to model solar ZnO dissociation in a tubular aerosol reactor at ultrahigh temperatures (1900–2300K). Reactor aspect ratios ranged between 0.15 and 0.45, with the smallest ratio base case corresponding to a reactor diameter of 0.02286m. Gas flow rates were set such that the Ar:ZnO ratio was greater than 3:1 and the system residence time was below 2s. The system was found to exhibit highly laminar flow in all cases (Re∼10), but gas velocity profiles did not seriously affect temperature profiles. Particle heating was nearly instantaneous, a result of the high radiation heat flux from the wall. There was essentially no difference between gas and particle temperatures due to the high surface area for conductive heat exchange between the phases. Calculation of ZnO conversion showed that significant conversions (&gt;90%) could be attained for residence times typical of rapid aerosol processing. Particle sizes of &gt;1μm negatively affected conversion, but sizes of 10μm still gave acceptable conversion levels. Simulation of reaction of product oxygen with the reactor wall showed that a reactor constructed of an oxidation-sensitive material would not be a viable choice for a high temperature solar reactor.