gebhart/patrepeval huggingface dataset:
A DSP-based DS-CDMA multiuser receiver employing partial parallel interference cancellation (1999)

The implementation of advanced DS-CDMA receivers based on multiuser detection principles is becoming a reality thanks to the combination of an improved understanding of the theoretical basis of multiuser detection and advances in digital, mixed-signal, and RF technologies. Due to their lower complexity, subtractive interference cancellation approaches are attractive for the practical implementation of multiuser detection. In a parallel interference cancellation receiver, it is practical to use the soft outputs of a matched filter bank for amplitude estimation. A bias arises in the decision statistics, however, due to imperfect estimation and interference cancellation. In this paper, the source of the bias is explicitly recognized, and a partial interference cancellation scheme that mitigates the negative effects of biased estimation and significantly improves system performance is proposed. A practical real-time algorithm that significantly reduces the implementation complexity of this scheme without sacrificing performance is then derived. To facilitate a software radio implementation, the signal processing complexity of the approach is characterized. The real-time processing algorithm is tested via implementation in software on a floating-point general-purpose DSP. The prototype includes a flexible software-based architecture which performs IF sampling and uses digital downconversion prior to baseband processing. The hardware test setup is described, and the results are presented and compared with simulation and analytical results. The experimental results confirm the simulation and analytical results which show large performance gains over the conventional matched filter.
Broadband Helicity Switching for Terahertz Waves Using Anisotropically Deformed Checkerboard Metasurface with Vanadium Dioxide (2019)

We propose a reconfigurable anisotropic metasurface that converts linearly polarized terahertz waves to circularly polarized ones in a broad spectral range. The metasurface, which is obtained by deforming checkerboard structures, precisely controls the amplitude and phase of transmitted waves for each linear polarization. It is possible to switch the helicity of the circularly polarized waves owing to vanadium dioxide introduced at the corners of the deformed checkerboard patterns. Based on experimental results, we analyze the helicity of the transmitted waves below and above a critical temperature of the vanadium dioxide, and estimate the operating bandwidth of the helicity switching metasurface.
Ion Mobility, Hydrogen/Deuterium Exchange, and Isotope Scrambling: Tools to Aid Compound Identification in ‘Omics Mixtures (2017)

Liquid chromatography tandem mass spectrometry (LC-MS/MS), a widely used method for comparative 'omics analysis, experiences challenges with compound identification due to matrix effects, difficulty in separating isomer and isobaric ions, and long analysis times. Ion mobility spectrometry (IMS) has proven to be useful in separating isomer and isobar ions; however, IMS-MS suffers from decreased peak capacity due to the correlation in ion size and mass. In proof-of-principle experiments, the use of gas-phase hydrogen/deuterium exchange (HDX) combined with IMS-MS/MS techniques is demonstrated to offer advantages for compound identification. Measurements providing unique information for ions include m/z value, drift time in He buffer gas, drift time in He and D<sub>2</sub>O buffer gases, deuterium incorporation pattern (isotopic distribution), deuterium incorporation pattern after collisional activation, and fragment ion deuterium incorporation pattern upon collision-induced dissociation (CID). These techniques are here shown to be highly reproducible (drift time coefficients of variation < 1.0% and isotopic pattern root-mean-square deviations of 0.5-1.5%) while demonstrating an increased ability to distinguish individual molecules from diverse classes of compounds (peptides, catecholamines, nucleosides, amino acids, etc.). The concept of using such (and similar) information for rapid, high-throughput molecular identification via database searching of standard libraries is briefly discussed, and an example of such usage is presented for a bonafide metabolite extract sample.
Persistence of IgE-Associated Allergy and Allergen-Specific IgE despite CD4+ T Cell Loss in AIDS (2014)

The infection of CD4+ cells by HIV leads to the progressive destruction of CD4+ T lymphocytes and, after a severe reduction of CD4+ cells, to AIDS. The aim of the study was to investigate whether HIV-infected patients with CD4 cell counts <200 cells/µl can suffer from symptoms of IgE-mediated allergy, produce allergen-specific IgE antibody responses and show boosts of allergen-specific IgE production. HIV-infected patients with CD4 counts ≤ 200 cells/µl suffering from AIDS and from IgE-mediated allergy were studied. Allergy was diagnosed according to case history, physical examination, skin prick testing (SPT), and serological analyses including allergen microarrays. HIV infection was confirmed serologically and the disease was staged clinically. The predominant allergic symptoms in the studied patients were acute allergic rhinitis (73%) followed by asthma (27%) due to IgE-mediated mast cell activation whereas no late phase allergic symptoms such as atopic dermatitis, a mainly T cell-mediated skin manifestation, were found in patients suffering from AIDS. According to IgE serology allergies to house dust mites and grass pollen were most common besides IgE sensitizations to various food allergens. Interestingly, pollen allergen-specific IgE antibody levels in the patients with AIDS and in additional ten IgE-sensitized patients with HIV infections and low CD4 counts appeared to be boosted by seasonal allergen exposure and were not associated with CD4 counts. Our results indicate that secondary allergen-specific IgE production and IgE-mediated allergic inflammation do not require a fully functional CD4+ T lymphocyte repertoire.
ChemInform Abstract: An Efficient Synthesis of α‐Iodo Derivatives of Sulfones, Sulfoximines and Phosphine Oxides. (1986)

Abstract Alkylsulfone (I) werden lithiiert und nach Umwandlung in Alanate (II) mit Iod zu l‐Iodalkylsulfonen (III) umgesetzt.
Multitime Methods for Systems of Difference Equations (1977)

Systems of difference equations containing small parameters are studied by a constructive perturbation scheme analogous to the one developed by the authors for the study of differential equations. The method results in an averaging procedure for difference equations, and it is particularly well suited to certain highly oscillatory, nonlinear systems. The method is applied to problems from population genetics, pattern recognition, and the numerical analysis of stiff differential equations
Development of Knowledge - Based Navigation System for Product Development (2004)

We have developed a knowledge-based navigation system that has three capabilities: (1) navigation of design procedures, (2) practical use of product design knowledge in the knowledge database, and (3) support of virtual prototyping. We created a function that links processes between templates for project management and templates for design to apply it to cellular phone development. The project management can then use this function to easily check progress and monitor products under development.
Organo-f-element thermochemistry. Thorium vs. uranium and ancillary ligand effects on metal-ligand bond disruption enthalpies in bis(pentamethylcyclopentadienyl)actinide bis(hydrocarbyls) and bis(pentamethylcyclopentadienyl) alkoxy actinide hydrides and hydrocarbyls (1986)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTOrgano-f-element thermochemistry. Thorium vs. uranium and ancillary ligand effects on metal-ligand bond disruption enthalpies in bis(pentamethylcyclopentadienyl)actinide bis(hydrocarbyls) and bis(pentamethylcyclopentadienyl) alkoxy actinide hydrides and hydrocarbylsJoseph W. Bruno, H. A. Stecher, Lester R. Morss, David C. Sonnenberger, and Tobin J. MarksCite this: J. Am. Chem. Soc. 1986, 108, 23, 7275–7280Publication Date (Print):November 1, 1986Publication History Published online1 May 2002Published inissue 1 November 1986https://pubs.acs.org/doi/10.1021/ja00283a023https://doi.org/10.1021/ja00283a023research-articleACS PublicationsRequest reuse permissionsArticle Views375Altmetric-Citations74LEARN 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-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
C-arm positioning using virtual fluoroscopy for image-guided surgery (2017)

Virtual fluoroscopy could improve accuracy of C-arm positioning and save time and radiation dose in the operating room. Such a system could be valuable to training of fluoroscopy technicians as well as intraoperative use in fluoroscopically guided procedures.
Fabrication of graded Cu(InGa)Se/sub 2/ films by inline evaporation (2002)

An inline evaporation system for depositing Cu(InGa)Se/sub 2/ films from elemental sources was characterized. The system demonstrated reproducibly good deposition uniformity and device performance for translation speeds ranging from 1 to 2.5 inches/min. A source effusion model predicting film thickness, composition, and compositional gradients was developed and tested. The effusion model was reasonably successful in predicting measured film characteristics. The model can be further improved by a more accurate description of the flux profiles. In addition, effusion in the transitional flow regime and the possibility of Ga-ln interdiffusion need to be explored. Such an improved model would be a valuable tool for the design and development of commercial scale systems, as well as for improved efficiency and flexibility in manufacturing.
Endoscopic ultrasound-guided sampling and profiling of portal circulation in human patients for metabolic research studies and biomarker assessment (2020)

Portal and hepatic circulation can now be safely accessed using endoscopic ultrasound (EUS). EUS-guided needle access of the portal vein is performed clinically at select tertiary centers for measurement of portal pressure gradients in patients with chronic liver disease and sampling of portal venous thrombus to diagnose malignancy. We propose that this novel clinical technique can be applied in research studies to allow blood collection from and profiling of portal and hepatic circulation. In this technical report, we present and highlight the technical aspects, feasibility, and safety of EUS: guided portal venous blood collection. As a proof of the concept and the utility of this technique in metabolic research and biomarker assessment and discovery, we present a pilot metabolite profiling study of portal venous blood in a small cohort of patients with cirrhosis and a comparison with a group without cirrhosis. Despite the very small diameter of the endoscopic needle used for the blood collection, the portal samples have the same quality as those collected from systemic circulation, and they can be used for the same downstream applications. Finally, we propose an analytical workflow to screen for promising metabolites that could qualify for further studies to determine their utility as sensitive, early candidate biomarkers of hepatic fibrosis, portal shunt, and hypertension. We hope that this report could stimulate and facilitate the widespread use of EUS-guided techniques for the profiling of portal circulation, which could potentially open a new field of scientific inquiry.<b>NEW & NOTEWORTHY</b> The technical aspects, feasibility, and safety of endoscopic ultrasound (EUS)-guided needle access for portal venous blood collection are presented in this technical report. Despite the very small diameter of the endoscopic needle, portal blood samples have the same quality as those collected from systemic circulation. As a proof of the concept and the utility of this technique in metabolic research and biomarker assessment and discovery, we present a pilot metabolite profiling study of portal venous blood in a small cohort of patients with cirrhosis and a comparison with a group without cirrhosis.
Design and Characterization of Differential Rectifier on Flexible Substrate for WPT/IOT Applications (2019)

This paper addresses the design and the characterization of a differential rectifier on a flexible PET substrate. The rectifier was designed as part of a planar differential rectenna for supplying battery-less tag suited for volume asset tracking. The dielectric properties of the flexible substrate are measured by using special designed test structures. A maximum output dc voltage 236mV and an RF-to-dc conversion efficiency of 18% were measured on a 10kΩ load when the rectifier is powered with -15dBm input RF signal.
LOW-MULTIPLICITY BURST SEARCH AT THE SUDBURY NEUTRINO OBSERVATORY (2011)

Results are reported from a search for low-multiplicity neutrino bursts in the Sudbury Neutrino Observatory. Such bursts could indicate the detection of a nearby core-collapse supernova explosion. The data were taken from Phase I (1999 November-2001 May), when the detector was filled with heavy water, and Phase II (2001 July-2003 August), when NaCl was added to the target. The search was a blind analysis in which the potential backgrounds were estimated and analysis cuts were developed to eliminate such backgrounds with 90% confidence before the data were examined. The search maintained a greater than 50% detection probability for standard supernovae occurring at a distance of up to 60 kpc for Phase I and up to 70 kpc for Phase II. No low-multiplicity bursts were observed during the data-taking period. © 2011. The American Astronomical Society. All rights reserved. Printedin the U.S.A.
Aza-aromatic polycycles based on triphenylene and acridine or acridone: synthesis and properties (2021)

Our attempts to <italic>N</italic>-arylate anilines with 2-iodotriphenylene and then cyclize with the adjacent carbonyl group are reported.
A memorial review of Jay Bailey's contribution in prokaryotic metabolic engineering (2002)

When mentioning prokaryotic metabolic engineering, most people will immediately think of Jay Bailey. Jay's contribution to this fast-growing field is evident and familiar to many. Therefore, instead of a detailed technical review, we attempt in this article to summarize his contribution and dissect reasons for his success in this area from a standpoint of one of his former students (VH) and of a colleague in the field (JCL). This short review is by no means complete and provides only a partial view of Jay's contribution to the metabolic engineering of prokaryotes.
Evolving Definitions of Remission in Crohn’s Disease (2013)

Over time, we anticipate that a working definition of remission that includes both biological remission and clinical remission will evolve and be evaluated in clinical trials. Our proposed definition is a possible starting point for that evolution. Ultimately, the goal in evolving the definition of remission is to improve the outcomes in patients with CD.
Intermediate temperature thermomechanical processing of Al 2090 for superplasticity (1989)

The Al-Cu-Li phase diagram indicates that during thermomechanical processing of Al 2090 at 300 C both T(1) and T(2) phases will precipitate. Following work on Al-Mg-X alloys, it is possible that TMP at such temperatures might promote intragranular formation of these phases and promote microstructural refinement during recrystallization. Microstructural analyses reveal that the T(2) phase in Al 2090 may play a similar role to the beta-phase in Al-Mg-X alloys during microstructural evolution. Mechanical property data indicate that Al 2090 can be moderately (215-245 percent) superplastic at 370 C following processing at 300 C.
High-Power Fuel Cell Systems Fueled by Recycled Aluminum (2019)

Abstract Presented here is a novel system that uses an aluminum-based fuel to continuously produce electrical power at the kW scale via a hydrogen fuel cell. This fuel has an energy density of 23.3 kWh/L and can be produced from abundant scrap aluminum via a minimal surface treatment of gallium and indium. These additional metals, which in total comprise 2.5% of the fuel’s mass, permeate the grain boundary network of the aluminum and disrupt its oxide layer, thereby enabling the fuel to react exothermically with water to produce hydrogen gas and aluminum oxyhydroxide, an inert and valuable byproduct. To generate electrical power using this fuel, the aluminum-water reaction is controlled via water input to a reaction vessel in order to produce a constant flow of hydrogen, which is then consumed in a fuel cell to produce electricity. As validation of this power system architecture, we present the design and implementation of two example systems that successfully demonstrate this approach. The first is a 3 kW emergency power supply and the second is a 10 kW power system integrated into a BWM i3 electric vehicle.
Radionuclide Imaging of the Bones and Joints of the Hand (1976)

Normal radionuclide patterns of the hand obtained with 99mTcO4 and 99mTc-Sn-EHDP are described and their validity supported by clinical, radiographic, and laboratory examinations performed to exclude articular disease in the control group. Comparison of the 99mTcO4 and 99mTc-Sn-EHDP images in patients with various articular diseases demonstrated higher sensitivity of 99mTc-Sn-EHDP in detection of involved joints; this was also true when the radionuclide images were compared with fine-detail radiographs in patients with rheumatoid arthritis.
HTTP Secure Remote Password (SRP) Authentication Scheme (2016)

This document defines an HTTP Authentication Scheme that is based on
the Secure Remote Password (SRP) protocol. The SRP protocol is an
Augmented Password Authenticated Key Exchange (PAKE) protocol suitable
for authenticating users and exchanging keys over an untrusted
network.
Experimental investigation of the intrinsic properties of the optical coupling between axisymmetric Gaussian beams (2005)

Continuing a previous analytical and numerical work, an experimental investigation of seven intrinsic properties of the optical coupling between axisymmetric Gaussian beams is presented. In this study, two single-mode fibers are used as the receiver and the emitter and a five-axis nanopositioning system is used to investigate optical coupling properties by moving one fiber relative to the other. Experiments demonstrate the existence of sufficiently accurate hyperbolic, parabolic, and linear trends for the optical coupling phenomenon, which can be useful for developing model-based alignment algorithms.
FOUNDATIONS FOR ON-THE-FLY LEARNING IN THE CHUCK PROGRAMMING LANGUAGE (2009)

Machine learning techniques such as classification have proven to be vital tools in both music information retrieval and music performance, where they are useful for leveraging data to learn and model relationships between low-level features and high-level musical concepts. Explicitly supporting feature extraction and classification in a computer music programming language could lower barriers to musicians applying classification in more performance contexts and encourage exploration of music performance as a unique machine learning application domain. Therefore, we have constructed a framework to execute feature extraction and classification in ChucK, forming a foundation for porting MIR solutions into a real-time performance context as well as developing new solutions directly in the language. We describe this work in depth, prefaced by introductions to music information retrieval, machine learning, and the ChucK language. We present three case studies of applying learning in real-time to performance tasks in ChucK, and we propose that fusing learning abilities with ChucK’s real-time, on-the-fly aesthetic suggests exciting new ways of using and interacting with learning algorithms in live computer music performance. 1.
A new concept for reconstruction of the input phase currents of a three-phase/switch/level PWM (VIENNA) rectifier based on neutral point current measurement (2002)

A novel concept utilizing the neutral point current information which is gained by an AC current sense transformer or a shunt for observer-based continuous reconstruction of the input phase currents of a three-phase/switch/level boost-type PWM (VIENNA) rectifier system is proposed. The basic principle of operation and the dimensioning of the observer circuit which in modified form also could feature an output voltage earth fault detection are discussed in detail. Furthermore, results of a practical application of the system in connection with a highly dynamic ramp comparison mains current control of a 10 kW laboratory model of the VIENNA rectifier are given.
Quantifying Crystalline Fraction within Polymer Spherulites (2007)

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTQuantifying Crystalline Fraction within Polymer SpherulitesKonstantinos G. Gatos, Chrysa Minogianni, and Costas GaliotisView Author Information Institute of Chemical Engineering and High Temperature Chemical Processes, Foundation for Research and TechnologyHellas (FORTH/ICE-HT), P.O. Box 1414, Patras 26504, Greece; Inter-Departmental Programme of Graduate Studies in Polymer Science and Technology, University of Patras, Greece; and Department of Materials Science, University of Patras, 26500 Patras, Greece Cite this: Macromolecules 2007, 40, 4, 786–789Publication Date (Web):January 17, 2007Publication History Received9 October 2006Revised5 December 2006Published online17 January 2007Published inissue 1 February 2007https://pubs.acs.org/doi/10.1021/ma0623284https://doi.org/10.1021/ma0623284rapid-communicationACS PublicationsCopyright © 2007 American Chemical SocietyRequest reuse permissionsArticle Views586Altmetric-Citations25LEARN 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:Crystal structure,Crystallinity,Crystallization,Lasers,Raman spectroscopy Get e-Alerts