gebhart/patrepeval huggingface dataset:
Ultra-broadband fabrication-tolerant polarization splitter and rotator (2017)

A polarization splitter and rotator that supports simultaneous O-, C-, and L-band operation is first experimentally demonstrated, with record 1-dB bandwidth over 360 nm, high fabrication tolerance, and high TE-TM conversion efficiency of −0.33 dB.
As práticas de CALL no meio virtual do século XXI (2011)

Este trabalho mostra como as práticas de CALL têm se modificado, culminando nas práticas atuais. Nesse contexto, são apresentados três projetos desenvolvidos com o auxílio da Internet, focalizando em especial a aprendizagem de línguas mediada pelo Orkut. Discute-se aqui também sobre a normalização das tecnologias incorporadas ao CALL.
Two-dimensional analysis and design considerations of high-voltage planar junctions equipped with field plate and guard ring (1991)

The breakdown voltages of planar junctions (both nonpunchthrough and punchthrough cases) equipped with field plates and guard rings are determined by evaluating the ionization integral using the potential distribution computed by solving Poisson's equation in two-dimensions by a finite difference method. The influence of various parameters, such as substrate doping concentration, n-layer thickness, field oxide thickness, cylindrical junction curvature, field plate width, and the spacing between field plate and guard ring, on the breakdown voltage is extensively studied. It is shown that an optimum value exists for the field oxide thickness to realize maximum breakdown voltage. The study also shows that the optimum oxide thickness depends upon cylindrical junction curvature, substrate doping concentration, and n-layer thickness. It is further shown that the permittivity of a passivant dielectric layer deposited over field plate structure influences the breakdown voltage when breakdown takes place at the field plate edge. The numerical results are compared with the experimental data, and good agreement between the two is observed. Based on this two-dimensional study, design guidelines are provided for achieving breakdown voltages close to maximum realizable values, by conserving the device area and reducing the ionization at the field plant edge. The results presented clearly demonstrate the superiority of the field plate design using punchthrough structures over nonpunchthrough structures in realizing a given breakdown voltage.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Quantum ionic effects in high-temperature superconducting hydrides at high pressure (2019)

Trabajo presentado en el 57th European High Pressure Research Group Meeting on High Pressure Science and Technology ( EHPRG 2019), celebrado en Praga (República Checa), del 1 al 6 de septiembre de 2019
A Bayesian Network approach to diagnosing the root cause of failure from Trouble Tickets (2012)

Telecommunications networks comprise elements of very different types that work together to provide services. Quite often, hardware failures are interrelated and it is hard for technicians specialized in specific hardware to find out these relationships. In this context, Bayesian Networks (BN) provide a good and flexible solution because they allow us to model the causal relationships between element failures and infer information from existing evidence. The goal is that network technicians can be informed of the real scope of failures and the probable existence of root problems, thus optimizing resources and reducing recovery time. Besides, with this approach a real element hierarchy can be built, allowing the discovery of hidden dependencies between elements. The outcome of this work has been the development of a rooting module attached to an incident management system (trouble ticketing system, TT).
Networks and Algorithms: An Introductory Approach (1994)

Flows in Basic Networks Variations on the Basic Flow Problem Multi-Terminal Flows Paths and Connectivity Longest and Shortest Path Algorithms Trees Physical Networks: Modelling Electrical Networks Matrix Equations Electrical Networks: Solving the Network Equations Matching Problems The Assignment Problem The Transportation Problem Critical Path Analysis Scheduling Packing Problems Location Problems Theory of Network Analysis Algorithms and NP-Completeness Solutions to Problems in the Text.
MBS-OCSP: an OCSP based certificate revocation system for wireless environments (2005)

Insofar public-key cryptography has been mostly used to provide security for applications that don't have constraints on bandwidth, memory or power. This type of applications (e.g. digital signature applications) or security protocols (e.g. Secure Socket Layer - SSL) typically use X.509 public-key certificates issued in the frame of public key infrastructures (PKIs). For wireless devices, the design of X.509 certificate-based secure applications is still an open issue, mostly due to the storage, network and computation limitations. One important and difficult issue that must be handled is the distribution of the current revocation status of the X.509 certificate toward the mobile client. We propose an improvement of a system (named CPC-OCSP) that is an adaptation of the OCSP protocol, one certificate revocation mechanism largely used nowadays. Our proposal, named MBS-OCSP, makes use of Merkle hash trees and is particularly appropriate for use in wireless environments where the clients are able to cache some of the received information for further re-use. Unlike other proposals, our system is flexible since clients and servers must not agree "in advance" on any parameter used for cache management. Finally, we compare our proposal with the standard revocation mechanisms (CRL and OCSP) and with CPC-OCSP in terms of the computational effort and the message size.
Biological Activity of Four Strobilurin Fungicides against Wheat Power Mildew (2004)

Azoxystrobin, kresoxim-methyl, enestroburin, and SYP-1620 showed good protective activity against wheat power mildew, with SYP-1620 and kresoxim-methyl exhibiting the highest activity. Curative activity of these four compounds was also good, with SYP-1620 providing the best 4-day curative control. Azoxystrobin penetration into wheat leaves and subsequent mobility was greater than other compounds. Residual control following foliar application of SYP-1620 and kresoxim-methy was 2 weeks.
Roles of Surface Chemistry on Safety and Electrochemistry in Lithium Ion Batteries (2012)

Motivated by new applications including electric vehicles and the smart grid, interest in advanced lithium ion batteries has increased significantly over the past decade. Therefore, research in this field has intensified to produce safer devices with better electrochemical performance. Most research has focused on the development of new electrode materials through the optimization of bulk properties such as crystal structure, ionic diffusivity, and electric conductivity. More recently, researchers have also considered the surface properties of electrodes as critical factors for optimizing performance. In particular, the electrolyte decomposition at the electrode surface relates to both a lithium ion battery's electrochemical performance and safety. In this Account, we give an overview of the major developments in the area of surface chemistry for lithium ion batteries. These ideas will provide the basis for the design of advanced electrode materials. Initially, we present a brief background to lithium ion batteries such as major chemical components and reactions that occur in lithium ion batteries. Then, we highlight the role of surface chemistry in the safety of lithium ion batteries. We examine the thermal stability of cathode materials: For example, we discuss the oxygen generation from cathode materials and describe how cells can swell and heat up in response to specific conditions. We also demonstrate how coating the surfaces of electrodes can improve safety. The surface chemistry can also affect the electrochemistry of lithium ion batteries. The surface coating strategy improved the energy density and cycle performance for layered LiCoO2, xLi2MnO3·(1 - x)LiMO2 (M = Mn, Ni, Co, and their combinations), and LiMn2O4 spinel materials, and we describe a working mechanism for these enhancements. Although coating the surfaces of cathodes with inorganic materials such as metal oxides and phosphates improves the electrochemical performance and safety properties of batteries, the microstructure of the coating layers and the mechanism of action are not fully understood. Therefore, researchers will need to further investigate the surface coating strategy during the development of new lithium ion batteries.
The Markov-Dubins problem with angular acceleration control (2002)

We study a modified version of the well known Markov-Dubins problem, in which the control is angular acceleration rather than angular velocity. We show that an optimal trajectory cannot contain a junction of a bang-bang and a singular piece, and use the results of Zelikin and Borisov (1994) to show that there are Pontryagin extremals involving infinite chattering.
Temperature dependence of the band structure of ZnS, ZnSe, ZnTe, and CdTe wurtzite-type semiconductor compounds (2007)

The temperature dependence of the energies of some characteristic energy extrema at the Γ, L, K, M, A, and H high-symmetry points of the Brillouin zone and the energies of the main interband transitions in hexagonal modifications of ZnS, ZnSe, ZnTe, and CdTe are calculated using the empirical pseudopotential method. The effect of the temperature dependence of electron-phonon interaction on the energy-band structure is taken into account using the Debye-Waller factors, and the effect of lattice linear expansion is described using the temperature dependence of the linear expansion coefficient. The features of the temperature dependence of electron levels, interband transitions, and temperature coefficients are discussed in detail. Possible applications of the obtained results are considered.
A new electric power network for effective transportation of small power of dispersed generation plants (1996)

Abstract This paper proposes a new electric power network that makes it possible for many types of dispersed generation plants owned by nonutility organizations to participate in an electric power market without the disadvantages of existing power utility and customers. This power network is called an open electric energy network (OEEN) because the network is open to the many types of plants for the participation. For achieving such openness, electric power storage devices, load controller at each customer and data communication network are installed in OEEN; the flow of excess electric power generated by each plant is controlled autonomously and in a distributed way. That is, the control is done by transmitting the data on excess electric power such as generation and demand point, power quality, price, etc., from each dispersed generation plant to the power storage devices and the load controllers through the communication network. Since this data‐driven power flow control is similar to the mail system for a packet with the addresses of sender and receiver, it is called packet electric power transportation. In OEEN the storage device plays a different role from load leveling. Therefore, the way to determine the storage capacity differs from the conventional approach. In this paper, the applicability of queuing theory for determining the capacity is also discussed.
Three-Dimensional Computer Modeling for Exploration and Reservoir Analysis: ABSTRACT (1985)

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if the DOI has never been published anywhere online or in print and never otherwise distributed to or communicated with anyone (authors, readers, reviewers, etc.
Magnetic Properties of Fe<sub>3</sub>Pt Invar Alloy (1979)

Magnetization, magnetostriction and magnetic anisotropy of Fe 3 Pt Invar alloys were investigated by changing the degree of long range order. The anomalous behaviour was found in magnetostriction and magnetic torque curves in the ordered Fe 3 Pt alloy at low temperatures. These anomalies are interpreted in terms of the reversible martensitic transformation caused by magnetic energy change.
A transformer-based filtering technique to lower LC-oscillator phase noise (2012)

Phase noise of oscillators can be improved through noise filtering. This paper presents a transformer-based harmonic filtering technique to improve the phase noise performance of the fully differential CMOS LC oscillators. The primary and secondary of the transformer are placed at the sources of NMOS and PMOS differential pairs, respectively. Due to the extra degree of freedom introduced by the transformer, the filter can resonate at two different frequencies, which are designed to be the second and fourth harmonics. The analysis of the filtering method is presented and principles of operation are discussed in details. The performance is compared with other filtering techniques, and the simulation results show improved FoM compared to published literature.
Self-calibration of digital phase-locked loops (2002)

A novel method for the measurement of the jitter transfer function of digital phase-locked loops is presented. The signal generation and analysis circuits are entirely digital except for an extra charge-pump. They hence do not require calibration. Contrary to other phase-locked loop digital measurement schemes, a clock frequency larger than the phase-locked loop operating frequency is not necessary. Because the area overhead is small, our scheme is highly amenable to on-chip tuning of analog components for compliance to specifications. This method could also be used to implement built-in self-test for phase-locked loops. Experiments with discrete components show the jitter transfer function measuring method is sound.
Anti-inflammatory and antinociceptive activity of vanillin (2014)

The Drug Development and Therapeutics (DDT) is an open access peer-reviewed journal committed to publishing high-quality articles in the field of Drug synthesis and development and Therapeutics from industry, Clinicians and Academia.
Surface Instabilities of Monodisperse and Densely Grafted Polymer Brushes (2008)

ADVERTISEMENT RETURN TO ISSUEPREVNoteNEXTSurface Instabilities of Monodisperse and Densely Grafted Polymer BrushesHolger Merlitz*†‡, Gui-Li He†, Chen-Xu Wu†, and Jens-Uwe Sommer‡View Author Information Department of Physics and ITPA, Xiamen University, Xiamen 361005, P.R. China, and Leibniz-Institut für Polymerforschung Dresden, D-01069 Dresden, Germany* Corresponding author. E-mail:[email protected].†Department of Physics and ITPA, Xiamen University.‡Leibniz-Institut für Polymerforschung Dresden.Cite this: Macromolecules 2008, 41, 13, 5070–5072Publication Date (Web):June 4, 2008Publication History Received23 January 2008Revised18 April 2008Published online4 June 2008Published inissue 1 July 2008https://pubs.acs.org/doi/10.1021/ma800163ahttps://doi.org/10.1021/ma800163abrief-reportACS PublicationsCopyright © 2008 American Chemical SocietyRequest reuse permissionsArticle Views537Altmetric-Citations36LEARN 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:Free energy,Modification,Monomers,Physical and chemical properties,Polymer brushes Get e-Alerts
Acoustic Analysis of a Mechanical Circulatory Support (2013)

Mechanical circulatory support technology is continually improving. However, adverse complications do occur with devastating consequences, for example, pump thrombosis that may develop in several parts of the pump system. The aim of this study was to design an experimental clot/thrombosis model to register and analyze acoustic signals from the left ventricular assist device (LVAD) HeartMate II (HMII) (Thoratec Corporation, Inc., Pleasanton, CA, USA) and detect changes in sound signals correlating to clots in the inflow, outflow, and pump housing. Using modern telecom techniques, it was possible to register and analyze the HMII pump-specific acoustic fingerprint in an experimental model of LVAD support using a mock loop. Increase in pump speed significantly (P<0.005) changed the acoustic fingerprint at certain frequency (0-23,000 Hz) intervals (regions: R1-3 and peaks: P1,3-4). When the ball valves connected to the tubing were narrowed sequentially by ∼50% of the inner diameter (to mimic clot in the out- and inflow tubing), the frequency spectrum changed significantly (P<0.005) in P1 and P2 and R1 when the outflow tubing was narrowed. This change was not seen to the same extent when the lumen of the ball valve connected to the inflow tube was narrowed by ∼50%. More significant (P<0.005) acoustic changes were detected in P1 and P2 and R1 and R3, with the largest dB figs. in the lower frequency ranges in R1 and P2, when artificial clots and blood clots passed through the pump system. At higher frequencies, a significant change in dB figs. in R3 and P4 was detected when clots passed through the pump system. Acoustic monitoring of pump sounds may become a valuable tool in LVAD surveillance.
Origins of radar (1990)

Sessions on the history of thunderstorm and lightning research were held December 11, 1985, at the AGU Fall Meeting in San Francisco, Calif. At that time, since it was well known that lightning researchers were intimately involved in the development of radar and since the 50th anniversary of radar in the United States was at hand, it was suggested that a session on the history of meteorological radar would be appropriate and interesting. The following contribution was presented in the History of Meteorological Radar session May 22, 1986, at the AGU Spring Meeting in Baltimore, Md.
Microstructure and Mechanical Properties of Molybdenum Sheet after Cross Rolling Processing (2004)

A substantial body of work exists here that describe the relationship between the microstructure, ingot processing and fabrication and mechanical properties of molybdenum sheet after cross rolling process. The objective of this study is to clarify how much the crossing rolling process procedure affects the microstructure, texture and mechanical property of this type of materials. This experiment begins from the power metallurgy to the final molybdenum strip (0.15mmxlOOmmx2000mm) through the cross rolling processing procedure. As a result, good mechanical property, improved elongation, enhanced ductility for further process, such as deep drawing and punching, and the reduced difference of the strength and plasticity between the parallel to rolling direction and perpendicular to rolling direction are achieved by the cross rolling processing procedure. According to discussing all the details about this experiment, it is confirmed that cross rolling molybdenum sheet can provide a concise and comprehensive explanation of processes and can guarantee the optical mechanical property and suitable for large production.
The Melting Point of Lead Bromide (1950)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Melting Point of Lead BromideL. M. KnowlesCite this: J. Am. Chem. Soc. 1950, 72, 10, 4817Publication Date (Print):October 1, 1950Publication History Published online1 May 2002Published inissue 1 October 1950https://pubs.acs.org/doi/10.1021/ja01166a513https://doi.org/10.1021/ja01166a513research-articleACS PublicationsRequest reuse permissionsArticle Views54Altmetric-Citations5LEARN 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
Infrared zoom lenses in the 1990s (1994)

The breadth of activity in the field of infrared zoom lenses is international in scope. Representative infrared zoom lens systems of the 1990s from the continents of North America, Europe, and Asia and the Middle East are presented. Design considerations unique to the infrared spectrum such as athermalization are given special attention. The various approaches to solving these design problems are described along with the operating characteristics of these systems. Applications include forward-looking infrared scanning systems and target simulators. Tolerance considerations during manufacture are presented. Innovative reflective zoom systems are also considered. Development trends for the next several years are discussed, including the use of diffractive optical elements in infrared zoom lens systems.
Immunobiology of primary intracranial tumors: IX. Phase I study of human lymphoblastoid interferon. (1984)

Interferon was administered intravenously on 3 consecutive days each week for 3 consecutive weeks in doses escalated each week from 10 to 20 to 30 megaunits (MU)/m2/day. Nine adult patients were treated, each of whom had undergone subtotal resection of a supratentorial anaplastic glioma within 3 weeks of beginning interferon treatment. Patients ranged in age from 34 to 71 years, and Karnofsky functional scores were 70 or greater. Evaluations included neurological examination, Karnofsky functional rating, computerized tomography brain scanning, and panels of hematologic, hepatic, renal, and coagulation testing. No dose-limiting or prohibitive toxicities were encountered, and each patient received nine interferon doses as scheduled. There were no symptoms of neurologic toxicity other than transient lethargy. Chills and fever occurred in all patients, while headache, lethargy, and back pain were experienced by half. These symptoms were most pronounced with the initial dose of each week and did not intensify with dose escalation. The most frequent side effect of interferon treatment was fever, usually peaking near the end of the initial 4-h infusion; it became less severe during the second and third weeks. Leukopenia and granulocytopenia were mild. Serum hepatic enzyme levels rose slightly during the course of interferon treatment and returned to normal after treatment was completed. Serum interferon levels reached a maximum concentration of 2,285 U/ml at the end of infusion and were proportional to the dosage. Interferon was not detectable in lumbar cerebrospinal fluid, but fluid from the tumor bed of one patient contained 120 U/ml.(ABSTRACT TRUNCATED AT 250 WORDS)