gebhart/patrepeval huggingface dataset:
Modeling CO2 Corrosion in Hilly Terrain Pipelines (2004)

Abstract The corrosion rate is generally measured using intrusive technologies such as coupons and electrical resistance probes. Field trials were carried out to detect flow characteristics (e.g. type of flow, liquid film height) and subsequent corrosion in hilly terrain pipelines using high-precision, non-intrusive ultrasound techniques. The ultrasound corrosion monitor was based on very fast response data collection, signal identification, and signal analysis. A cross-correlation, pulse-echo technique was used for the measurement of multiphase flow characteristics. The field pipeline was examined for changes of inclination since the topography of the pipeline in multiphase flow can seriously affect the flow conditions. There were significant levels of bicarbonate ions in some lines which affected the pH significantly. The pH ranged between 4.0 and 6.0 depending on the temperature, pressure and the bicarbonate. It was seen from the measurements of the localized flow that the corrosion rate calculated using these values was in good agreement with the measured corrosion rates. This paper describes the flow and corrosion measurements carried out on several flowlines. The localized flow and corrosion is identified and methods for the corrosion rate prediction are suggested.
Omicron BA.2 breakthrough infection enhances cross-neutralization of BA.2.12.1 and BA.4/BA.5 (2022)

Abstract Recently, we reported that BNT162b2-vaccinated individuals after Omicron BA.1 breakthrough infection have strong serum neutralizing activity against Omicron BA.1, BA.2, and previous SARS-CoV-2 variants of concern (VOCs), yet less against the highly contagious Omicron sublineages BA.4 and BA.5 that have displaced previous variants. As the latter sublineages are derived from Omicron BA.2, we characterized serum neutralizing activity of COVID-19 mRNA vaccine triple-immunized individuals who experienced BA.2 breakthrough infection. We demonstrate that sera of these individuals have broadly neutralizing activity against previous VOCs as well as all tested Omicron sublineages, including BA.2 derived variants BA.2.12.1, BA.4/BA.5. Furthermore, applying antibody depletion we showed that neutralization of BA.2 and BA.4/BA.5 sublineages by BA.2 convalescent sera is driven to a significant extent by antibodies targeting the N-terminal domain (NTD) of the spike glycoprotein, whereas their neutralization by Omicron BA.1 convalescent sera depends exclusively on antibodies targeting the receptor binding domain (RBD). These findings suggest that exposure to Omicron BA.2, in contrast to BA.1 spike glycoprotein, triggers significant NTD specific recall responses in vaccinated individuals and thereby enhances the neutralization of BA.4/BA.5 sublineages. Given the current epidemiology with a predominance of BA.2 derived sublineages like BA.4/BA.5 and rapidly ongoing evolution, these findings are of high relevance for the development of Omicron adapted vaccines.
Issues with network based inter-technology handovers (2009)

Proxy Mobile IPv6 (PMIPv6) is a network based mobility management
protocol that enables IP mobility for a host without requiring its
participation in any mobility-related signaling. While the PMIPv6
protocol itself supports handover across interfaces and between access
types, there are several issues with effectively performing inter-
technology handovers with network based mobility protocols. This
document aims to enumerate some known issues with such handovers.
Correlation Between Hemodynamics And Dynamic Impedance At Constant Heart Rate (2012)

Introduction: Inappropriate ICD shocks are due to incorrect detection and discrimination based on IEGM and heart rate. Hemodynamic monitoring may be a useful function in ICDs. Dynamic cardiogenic i ...
Electrostatically enhanced performance of a yeast-based microbial fuel cell (2015)

The performance of a yeast MFC is improved by applying a dc voltage <italic>V</italic><sub>appl</sub> to its anode without causing extra energy to be spent on the MFC.
SmartObjects (2013)

Smart objects are everyday objects that have computing capabilities and give rise to new ways of interaction with our environment. The increasing number of smart objects in our life shapes how we interact beyond the desktop. In this workshop we explore various aspects of the design, development and deployment of smart objects including how one can interact with smart objects.
The (Right) Null Space of S (2006)

A summary is not available for this content so a preview has been provided. Please use the Get access link above for information on how to access this content.
Beyond Poisson–Boltzmann: Numerical Sampling of Charge Density Fluctuations (2016)

We present a method aimed at sampling charge density fluctuations in Coulomb systems. The derivation follows from a functional integral representation of the partition function in terms of charge density fluctuations. Starting from the mean-field solution given by the Poisson-Boltzmann equation, an original approach is proposed to numerically sample fluctuations around it, through the propagation of a Langevin-like stochastic partial differential equation (SPDE). The diffusion tensor of the SPDE can be chosen so as to avoid the numerical complexity linked to long-range Coulomb interactions, effectively rendering the theory completely local. A finite-volume implementation of the SPDE is described, and the approach is illustrated with preliminary results on the study of a system made of two like-charge ions immersed in a bath of counterions.
Fast non-linear Zernike filter for optical phase visualization based on ferroelectric liquid crystal optically addressed spatial light modulator (2001)

Summary form only given. High-resolution adaptive wavefront sensing and wavefront control are complementary problems. Upcoming new devices for wavefront compensation like liquid crystal spatial light modulators (SLM) and micro-electromechanical systems (MEMS) potentially provide the wavefront compensation with spatial resolution on the order of 10/sup 4/-10/sup 6/ elements. Such resolution requires use of new optical wavefront sensors. In our paper we proposed a new phase visualization method originating from classical phase contrast technique using non-linear Zernike (NZ) filter based on optically addressed SLM (OASLM) with planarly aligned nematic liquid crystal.
Enhanced multilayer organic packages with embedded phased-array antennas for 60-GHz wireless communications (2013)

A low-cost, fully-integrated antenna-in-package (AiP) solution for 60-GHz phased-array systems is demonstrated. Sixteen patch antennas are integrated into a multilayer organic (MLO) ball grid array (BGA) together with a flip-chip attached transmitter or receiver IC. Compared to the previous 60-GHz package design, the enhanced 24 mm × 24 mm package not only reduces the footprint area by 27%, but it also eliminates the open IC cavity which improves the package yield and assembly significantly. Printed circuit board processes are used in manufacturing with a combination of liquid-crystal polymer and glass-reinforced laminates, allowing excellent 60-GHz interconnect and antenna performance. The average simulated return loss and gain of each antenna from 58 to 64 GHz are ~10 dB and ~6 dBi, respectively. The effective isotropic radiated power (EIRP) is measured as a function of the 16 functional antennas, demonstrating spatial power combining up to 34 dBm.
Desigualdade e participação política: o caso do Conselho Municipal de Saúde de Curitiba (2004)

Esse trabalho investiga a participacao politica no Conselho Municipal de Saude de Curitiba (CMSC), no estado do Parana. Os conselhos de politica social, no Brasil, sao reconhecidos como arenas de ampliacao da participacao politica, incorporando, na estrutura da politica estatal, a presenca de setores da sociedade civil. Tendo isso em vista, o trabalho tenta avaliar se, e em que medida, a participacao no CMSC e distribuida de forma equilibrada entre os individuos e grupos que participam do Conselho Municipal de Saude de Curitiba.
A partir das atas das reunioes do CMSC, examinamos a agenda do conselho e a distribuicao da participacao politica no processo decisorio. O nosso banco de dados permitiu analisar os atores em termos de tres categorias: como individuos, como organizacoes ou pelos cargos que ocupam no conselho. Os assunto foram classificados em dois grandes grupos: assuntos internos (do conselho) e assuntos publicos, sendo estes ultimos subdivididos em termos das areas da politica de saude. Isso nos permitiu avaliar a participacao politica no conselho em termos de quem decide e sobre o que se decide.
Em relacao a dinâmica do processo decisorio, o CMSC tem se constituido como uma arena onde atuam tres tipos de atores relevantes: os atores estatais, os usuarios e os trabalhadores do setor. Os dois primeiros nao apenas se fazem presentes na maior parte da atividade deliberativa do conselho como tambem sao os principais protagonistas das controversias geradas no seu interior.
A distribuicao desigual da participacao politica entre individuos e grupos que integram o conselho indica que a participacao nao pode ser considerada um resultado espontâneo, direto e simetrico a existencia de condicoes institucionais favoraveis a ampliacao da participacao politica.
Apesar disso, o CMSC mostrou ser um espaco de participacao politica mais amplo do que a sua composicao formal. Nesse sentido, o conselho revelou-se como um espaco permeavel a participacao, em todos os momentos do processo decisorio, de visitantes, de setores do corpo tecnico estatal e, com menor frequencia, de movimentos sociais.
Buscamos tambem obter informacoes a respeito da forma pela qual se decide. Isso foi realizado a partir da analise da existencia ou nao de debate e de contestacao no conselho, assim como dos tipos de deliberacao. O debate e da deliberacao no CMSC assumem um carater substantivo no que se refere aos temas em pauta. O mesmo nao pode ser dito em relacao a densidade do debate e aos tipos de deliberacao. Apesar de o debate e a deliberacao ocorrerem com bastante frequencia, os dados disponiveis nao indicam a existencia de um constante confronto de posicoes politicas, muito menos de modalidades fortes de deliberacao.
A Secure Downlink NOMA Scheme Against Unknown Internal Eavesdroppers (2021)

Enhancing security level against potential internal eavesdroppers in Non-Orthogonal Multiple Access (NOMA) has been reported as a serious challenge. In this letter, a novel secure NOMA scheme based on physical-layer security concepts is proposed. The proposed scheme exploits the random and independent channel characteristics to induce a different phase shift in each user's symbol. Based on the assumption that the instantaneous channel phase between a user and the base station is available only at both ends, other users will not be able to decode the right symbol. Analytical and simulation average bit error rate performance results demonstrate the ability of the proposed scheme to degrade the performance at the eavesdropper without affecting the performance at other legitimate users and guarantee data confidentiality of each user.
Corrigendum: Determinants of Conductive Hearing Loss in Tympanic Membrane Perforation: Correction of the Sixth Author Name (2015)

[This corrects the article on p. 92 in vol. 8, PMID: 26045905.].
Efficient collision detection for interactive three-dimensional graphics and virtual environments (1998)

Collision detection is of paramount importance for many applications in computer graphics and visualization. Typically, the input to a collision detection algorithm is a large number of geometric objects comprising an environment, together with a set of objects moving within the environment. In addition to determining accurately the contacts that occur between pairs of objects, one needs also to do so at real-time rates. Applications such as haptic force-feedback can require over 1000 collision queries per second.
We initially analyze several methods of performing collision detection which utilize standard box-based data structures. These methods are compared against a more sophisticated technique, based upon recent computational geometry results on ray shooting using meshes of low stabbing number.
Building upon these results, we develop and analyze a method, based on bounding-volume hierarchies, for efficient collision detection for objects moving within highly complex environments. Our choice of bounding volume (BV) is to use a discrete orientation (k-dop), a convex polytope whose facets are determined by halfspaces whose outward normals come from a small fixed set of k orientations. We compare a variety of methods for constructing hierarchies (BV-trees) of bounding k-dops, including a novel technique in which the BV-tree oscillates as it is constructed. Further, we propose algorithms for maintaining an effective BV-tree of k-dops for moving objects as they rotate, and for performing fast collision detection using BV-trees of the moving objects and of the environment. By maintaining a front as the objects move within the environment, we are able to exploit temporal coherence during the collision detection checks and accelerate the tree traversal algorithm considerably.
Our algorithms have been implemented, tested, and are being publicly released within our QuickCD library of collision detection routines. We provide experimental evidence showing that our approach yields substantially faster collision detection than previous methods.
To further test the practicality and effectiveness of our method, we also demonstrate its efficiency in performing NC verification, i.e., in testing tool paths for gouging in 3-axis machining.
Antagonistic Insulin Derivative Suppresses Insulin-Induced Hypoglycemia (2023)

Insulin derivatives provide new functions that are distinctive from native insulin. We investigated insulin modifications on the C-terminal A chain with insulin receptor (IR) peptide binders and presented a full and potent IR antagonist. We prepared insulin precursors featuring a sortase A (SrtA) recognition sequence, LPETGG, at the C-terminal A chain and used a SrtA-mediated ligation method to synthesize insulin derivatives. The insulin precursor exhibits full IR agonism potency, similar to native human insulin. We explored derivatives with linear IR binding peptides attached to the insulin C-terminal A chain. One insulin derivative with an IR binder (Ins-AC-S2) can fully antagonize IR activation by insulin, as confirmed by cell-based assays. This IR antagonist suppresses insulin-induced hypoglycemia in a streptozotocin-induced diabetic rat model. This study provides a new direction toward insulin antagonist development.
Multiuser Spatial Consistency Analysis of Outdoor Massive-MIMO Measurements (2021)

This article presents a massive multiple-input multiple-output (MMIMO) outdoor measurement campaign with bidirectional angular discrimination. Two dynamic user arrays of eight elements each are measured simultaneously. Multiuser consistency and spatial consistency are important for proper modeling and simulation of dynamic users in MMIMO channels. This article will investigate the common scatterers between two moving users by considering the power contribution from physical objects to each user. Interuser distance and user alignment in the direction of dominant scatterers are also considered. Paths are estimated from wideband dual-directional beam-scanning. A method is developed to group the paths based on delay and angular development along the measured tracks. The estimated delay and angle of each path, along with ray tracing simulations, are used to map the interactions of each path to surrounding walls or objects. The power contributions from objects are compared to determine common scatterers between users, which can cause larger correlation and a reduced MIMO capacity.
Hunting for Genes Linked to Risk of, Not From, Bloodstream Infection* (2020)

Inflammatix, Inc, Burlingame, CA *See also p. 1580. Dr. Sweeney received funding from Inflammatix (stockholder and employee).
T-Norm for Text-Dependent Commercial Speaker Verification Applications: Effect of Lexical Mismatch (2006)

We describe a test-time score normalization technique (T-Norm) for text-dependent speaker verification that is robust to lexical mismatch. The main challenge to the deployment of T-Norm in a text-dependent task is the mismatch between the lexicon of the target speaker model in the application and that of the cohort speaker models. We show the negative effect of that mismatch in controlled experiments and propose a hybrid scoring scheme (T-Norm and background model) to remedy it. In a lexically mismatched scenario, which is inherent to the deployment of T-Norm in a text-dependent system, we show a 31% relative error rate reduction using the hybrid scoring over T-Norm alone. A 22% relative error rate reduction is measured over the baseline (no T-Norm) system.
Analysis of three-dimensional chromatin packing domains by chromatin scanning transmission electron microscopy (ChromSTEM) (2022)

Chromatin organization over multiple length scales plays a critical role in the regulation of transcription. Deciphering the interplay of these processes requires high-resolution, three-dimensional, quantitative imaging of chromatin structure in vitro. Herein, we introduce ChromSTEM, a method that utilizes high-angle annular dark-field imaging and tomography in scanning transmission electron microscopy combined with DNA-specific staining for electron microscopy. We utilized ChromSTEM for an in-depth quantification of 3D chromatin conformation with high spatial resolution and contrast, allowing for characterization of higher-order chromatin structure almost down to the level of the DNA base pair. Employing mass scaling analysis on ChromSTEM mass density tomograms, we observed that chromatin forms spatially well-defined higher-order domains, around 80 nm in radius. Within domains, chromatin exhibits a polymeric fractal-like behavior and a radially decreasing mass-density from the center to the periphery. Unlike other nanoimaging and analysis techniques, we demonstrate that our unique combination of this high-resolution imaging technique with polymer physics-based analysis enables us to (i) investigate the chromatin conformation within packing domains and (ii) quantify statistical descriptors of chromatin structure that are relevant to transcription. We observe that packing domains have heterogeneous morphological properties even within the same cell line, underlying the potential role of statistical chromatin packing in regulating gene expression within eukaryotic nuclei.
Polarization oscillations in aerial fiber caused by wind and power-line current (2003)

Polarization fluctuations are measured in a 2/spl times/90 km optical fiber encapsulated in the lightning protection cable of a high-voltage transmission line. Results are correlated to the wind speed and to the current in the high-voltage line.
Recensione a Andreau, Jean and Véronique Chankowski (edd.). Vocabulaire et expression de l'économie dans le monde antique. E/tudes, 19. Pessac: Ausonius, 2007. 463 p. € 35.00. ISBN 9788910023920. (2009)

Recensione degli Atti di un Colloquio Internazionale sulla Institutional Economics applicata al mondo antico.
Gene transfer establishes primacy of striated vs. smooth muscle sarcoglycan complex in limb-girdle muscular dystrophy (2003)

Limb-girdle muscular dystrophy types 2E and F are characterized by skeletal muscle weakness and often cardiomyopathy and are due to mutations in the genes encoding beta- and delta-sarcoglycan. We previously demonstrated that loss of sarcoglycans in smooth muscle leads to constrictions of the microvasculature that contributes to the cardiac phenotype. It is unclear how vasculature abnormalities affect skeletal muscle. We injected recombinant beta- or delta-sarcoglycan adenoviruses into skeletal muscles of corresponding null mice. We hypothesized that the adenoviruses would not transduce vascular smooth muscle, and we would only target skeletal muscle. Indeed, sustained expression of intact sarcoglycan-sarcospan complex was noted at the sarcolemma, neuromuscular junction, myotendinous junction, and in peripheral nerve, but not in vascular smooth muscle. Gene transfer of the corresponding deleted sarcoglycan gene preserved sarcolemmal integrity, prevented pathological dystrophy and hypertrophy, and protected against exercised-induced damage. We conclude that vascular dysfunction is not a primary cause of beta- and delta-sarcoglycan-deficient muscular dystrophy. In addition, we show successful functional rescue of entire muscles after adenovirus-mediated gene delivery. Thus, virus-mediated gene transfer of sarcoglycans to skeletal muscle in combination with pharmacological prevention of cardiomyopathy constitute promising therapeutic strategies for limb-girdle muscular dystrophies.
Design of a nanoelectromechanical high-index-contrast guided-wave optical switch for single-mode operation at 1.55 μm (2003)

A design is presented for a nanoelectromechanical optical switch based on the horizontal deflection of an input waveguide to align with one of two output waveguides. The use of high-index (GaAs) strip waveguides surrounded by air, designed to be single-mode at 1.55 μm, significantly decreases device dimensions as compared to previous designs. Design tradeoffs between optical and mechanical properties of the device are discussed. By means of three-dimensional numerical simulations, optical transmission is optimized for two different design strategies: butt and parallel coupling. High polarization-independent transmission (over 90%) is predicted for realistic design parameters.
Nanopatterning via Optical Saturable Transitions (2015)

We report that the diffraction limit of conventional optical lithography can be overcome by exploiting the transitions of organic photochromic derivatives induced by their photoisomerzation at low light intensities.
Design of a periodic substrate-integrated-waveguide leaky-wave antenna (2017)

This paper presents the design and implementation of a periodic SIW leaky wave antenna. The design employs transverse slots along the length of the structure. The resulting SIW leaky wave antenna has a 8.9° narrow beam with side lobe level of -11.9dB down. The antenna is fabricated on Roger 5880, measured using the network analyzer, and simulated using CST microwave studio. Experimental measurements are in good agreements with simulation results.
Adverse Effects of Industrial Multiwalled Carbon Nanotubes on Human Pulmonary Cells (2008)

The aim of this study was to evaluate adverse effects of multiwalled carbon nanotubes (MWCNT), produced for industrial purposes, on the human epithelial cell line A549. MWCNT were dispersed in dipalmitoyl lecithin (DPL), a component of pulmonary surfactant, and the effects of dispersion in DPL were compared to those in two other media: ethanol (EtOH) and phosphate-buffered saline (PBS). Effects of MWCNT were also compared to those of two asbestos fibers (chrysotile and crocidolite) and carbon black (CB) nanoparticles, not only in A549 cells but also in mesothelial cells (MeT5A human cell line), used as an asbestos-sensitive cell type. MWCNT formed agglomerates on top of both cell lines (surface area 15-35 microm(2)) that were significantly larger and more numerous in PBS than in EtOH and DPL. Whatever the dispersion media, incubation with 100 microg/ml MWCNT induced a similar decrease in metabolic activity without changing cell membrane permeability or apoptosis. Neither MWCNT cellular internalization nor oxidative stress was observed. In contrast, asbestos fibers penetrated into the cells, decreased metabolic activity but not cell membrane permeability, and increased apoptosis, without decreasing cell number. CB was internalized without any adverse effects. In conclusion, this study demonstrates that MWCNT produced for industrial purposes exert adverse effects without being internalized by human epithelial and mesothelial pulmonary cell lines.