gebhart/patrepeval huggingface dataset:
Smartphone-Based Cooperative Indoor Localization with RFID Technology (2018)

In GPS-denied indoor environments, localization and tracking of people can be achieved with a mobile device such as a smartphone by processing the received signal strength (RSS) of RF signals emitted from known location beacons (anchor nodes), combined with Pedestrian Dead Reckoning (PDR) estimates of the user motion. An enhacement of this localization technique is feasible if the users themselves carry additional RF emitters (mobile nodes), and the cooperative position estimates of a group of persons incorporate the RSS measurements exchanged between users. We propose a centralized cooperative particle filter (PF) formulation over the joint state of all users that permits to process RSS measurements from both anchor and mobile emitters, as well as PDR motion estimates and map information (if available) to increase the overall positioning accuracy, particularly in regions with low density of anchor nodes. Smartphones are used as a convenient mobile platform for sensor measurements acquisition, low-level processing, and data transmission to a central unit, where cooperative localization processing takes place. The cooperative method is experimentally demonstrated with four users moving in an area of 1600 m 2 , with 7 anchor nodes comprised of active RFID (radio frequency identification) tags, and additional mobile tags carried by each user. Due to the limited coverage provided by the anchor beacons, RSS-based individual localization is inaccurate (6.1 m median error), but this improves to 4.9 m median error with the cooperative PF. Further gains are produced if the PDR information is added to the filter: median error of 3.1 m (individual) and 2.6 m (cooperative); and if map information is also considered, the results are 1.8 m (individual) and 1.6 m (cooperative). Thus, for each version of the particle filter, cooperative localization outperforms individual localization in terms of positioning accuracy.
Polyvinylidene fluoride/nickel composite materials for charge storing, electromagnetic interference absorption, and shielding applications (2015)

In this paper, the composites of polyvinylidene fluoride (PVDF)/nickel (Ni) prepared through simple blending and hot-molding process have been investigated for dielectric, electromagnetic shielding, and radar absorbing properties. In order to study complex permittivity of the composites in 40 Hz–20 MHz frequency range, impedance spectroscopy (IS) technique is used. Besides, the complex permittivity and permeability in addition to shielding effectiveness (SE), reflection coefficient (backed by air), and loss factor are calculated using scattering parameters measured in X-band (8.2–12.4 GHz) by waveguide method. Further, in X-band, a theoretical analysis of single layer absorbing structure backed by perfect electrical conductor is then performed. A flanged coaxial holder has also been designed, fabricated, calibrated, and tested for electromagnetic interference SE measurement in the broad frequency range (50 MHz–18 GHz). The IS results indicate large enhancement in dielectric constant as a function of Ni loading in the polymer-metal composite (PMC) phase. This result has been explained using interfacial polarization and percolation theory. The frequency dependent response of ac conductivity has been analyzed by fitting the experimental data to the “Johnscher's universal dielectric response law” model. The results obtained for SE (in X-band over broad frequency range) and reflection coefficient indicate that PVDF/Ni composites give better electromagnetic interference shielding and radar absorption properties at filler concentration (fcon) ≥ fc in the PMC, whereas at fc &amp;lt; fcon, the charge storage mechanism dominates in the insulator regime of the composite phase. Therefore, the range of PMC compositions below and above percolation threshold has been observed to have different variety of applications.
All-PANDA-fibre gyroscope with long-term stability (1984)

A new all-PANDA-fibre gyroscope is reported. All components such as the coil, the phase modulator, the 3 dB coupler and the polariser were constructed by the PANDA fibres. The extinction ratio of the fibre-type polariser was 43 dB, with the insertion loss smaller than 0.04 dB when the fibre was bent by the radius R = 10 cm. For long-term behaviour, the peak-to-peak fluctuation of 0.5 deg/h was observed with 40 s integration time
An Add-On Self-Tuning Control System for a UPFC Application (2013)

This paper presents an add-on self-tuning (ST) control scheme for a Unified Power Flow Controller (UPFC) to assist its conventional PI control system in damping power oscillations. The ST control algorithm is based on a Pole Shift (PS) technique that has previously been successfully applied in Adaptive Power System Stabilizers (APSSs). For a wide range of operating conditions, the conventional PI-UPFC unless returned suffers from insufficient/nonoptimal damping performance. To overcome this problem, the authors propose supplementing the PI controllers with an ST feedback loop comprised of an identifier and a PS control algorithm. With a CRLS identifier tracking the system conditions online, this scheme eliminates the need for PI parameter retuning. Further, to correctly identify system parameters during large disturbances, a constrained recursive least squares (CRLS) identification procedure is adopted here. An improved damping performance with the proposed add-on scheme assisting the nonoptimal PI-UPFC is demonstrated for a two-area power system.
<title>Color opponency watermarking scheme for digital images</title> (2000)

In this paper we present a novel watermarking scheme to generalize a previous proposal by the same authors. In that paper to watermark, the image amounts to process the colors in the picture as points in the Color Opponency space and to offset each one of them by a random vector. As an extra constraint, in order to avoid picture quality degradation, the offset applied should be such that a color is not moved outside of a small sphere. The watermarking algorithm processes the colors in the picture as points in the Color Opponency space and offsets each one of them, inside a suitable imperceptive area, by a random vector. To improve robustness we suggest to partition the whole pixels population into 'color sets': each set gathers pixels with the same color. Each color set, exceeding a given cardinality, is in turn randomly partitioned into three subsets. Each one of these subsets is hence manipulated in different suitable ways. The watermark is obtained maintaining a record of the statistical distribution of the three subsets. Rigorous theoretical statistical analysis shows that this approach is robust with respect to the most common operations of image processing.
SOFC Module and System Development by Means of Sealless Metallic Separators with Lanthanum Gallate Electrolyte (2006)

The third-generation -class module was developed with an automatic control system. A conversion efficiency of 48% ac/lower heating value [ac/LHV] was achieved with an exhaust heat recovery unit. An endurance test using the third-generation module was done for over and no degradation of the power generation performance was observed. In parallel, a single-cell unit, which includes one cell and two metallic separators, was tested for over and the degradation rate of the terminal voltage was found to be . In the direction of scale-up, a triple-stack module of output was developed. A partial load as well as excess loads on the module were tested and the output power of was attained under thermally self-sustainable conditions. It was found that a high efficiency of 55% dc/lower heating value [dc/LHV] was obtained under stable operation. Ongoing research of the fourth-generation module has resulted in the conversion efficiency of 58% [dc/LHV].
원저 ( Original Articles ) ; Telomere 염기배열을 포함하는 DNA , RNA 및 RNA - DNA Hybrid Oligonucleotide 의 구조에 관한 연구 (1991)

Five kinds of DNA, RNA and DNA-RNA hybrid oligonucleotides (T1∼5) containing Tetrahymena and human telomeric sequences were synthesized. T1 had the sequence d(T₂G₄)₄. T2, T3, T4 and T5 were d(T₂AG₃)₄, h(U₂dG₄)₄, h(T₂rG₄)₄ and r(U₂G₄)₄, respectively. By nondenaturing PAGE, T1 and T2 showed faster gel mobility compared to size marker DNA 24mer in the presence of 50 mM NaCl at low temperatures. T1 showed a more stable telomeric structure than T2 in a Tm analysis experiment and gel mobility shift experiment. We have tested the susceptibility of dGs in telomeric structure to methylation by DMS. At low temperatures, 5`-terminal dG residue of T1 oligomer was hypersensitive to methylation, while other three dGs were resistant. These results suggest that T1 and T2 oligonucleotides form a telomeric structure containing Hoogsteen base pairs. T3 oligomer h(U₂dG₄)₄, where dT residues were substituted by rU, had the same mobility as T1 in nondenaturing PAGE. But T4 oligomer h(T₂rG₄)₄, where dG residues were substituted by rG, showed a different gel mobility compared with T1. T5 oligomer r(U₂G₄)₄ which contained the ribonucleosides only migrated to the same position as T4. These results show that telomeric DNA structure is dependent on dG to form intramolecular hydrogen bonding in the hairpin structure.
A practical course in polymer chemistry (Pinner, S. H.) (1962)

ADVERTISEMENT RETURN TO ISSUEPREVBook and Media Revie...Book and Media ReviewNEXTA practical course in polymer chemistry (Pinner, S. H.)William R. Krigbaum Cite this: J. Chem. Educ. 1962, 39, 7, 378Publication Date (Print):July 1, 1962Publication History Received3 August 2009Published online1 July 1962Published inissue 1 July 1962https://doi.org/10.1021/ed039p378.3RIGHTS & PERMISSIONSArticle Views309Altmetric-Citations-LEARN 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 InReddit PDF (2 MB) Get e-Alerts Get e-Alerts
Stress Induction of the Mammalian GRP78/BiP Protein Gene: In Vivo Genomic Footprinting and Identification of p70CORE from Human Nuclear Extract as a DNA-Binding Component Specific to the Stress Regulatory Element (1994)

GRP78, also known as BiP, is one of the better-characterized molecular chaperones. It has been implicated in protein folding and also calcium sequestration in the endoplasmic reticulum. When the cells are subjected to endoplasmic reticulum stress, in particular the depletion of stored calcium and/or the accumulation of abnormal proteins, the rate of transcription of grp78 is enhanced. Previous studies have shown that the core region of the rat grp78 promoter (-170 to -135), which is 95% conserved with the human grp78 core (-133 to -98), is one of the key regulatory elements. Using ligation-mediated PCR, we have found that there are specific changes in factor occupancy after stress induction and the major changes occur within a cluster of bases located in the 3' half of the grp core, whereas other regulatory elements are constitutively occupied. This inducible binding to the 3' half of the human grp78 core region is observed under diverse stress signals, suggesting a common mechanism for the grp stress response. Nonetheless, the lack of constitutive in vivo protection at this region is not due to the absence of a binding factor in nuclear extracts. Using in vitro gel mobility shift assays, we detected a constitutive binding activity which exhibits specificity and affinity to the stress-inducible region. Through sodium dodecyl sulfate-polyacrylamide gel electrophoresis size fractionation and renaturation analysis, the activity is found in polypeptides with molecular sizes of 65 to 75 kDa. After a three-step purification scheme including core affinity column chromatography, we purified p70CORE, which is about 70 kDa in its monomeric form. The purified p70CORE is sufficient to form a complex specific to the stress-inducible region.
From Cells to Streets (2014)

Through their normal operation, cellular networks are a repository of continuous location information from their subscribed devices. Such information, however, comes at a coarse granularity both in terms of space, as well as time. For otherwise inactive devices, location information can be obtained at the granularity of the associated cellular sector, and at infrequent points in time, that are sensitive to the structure of the network itself, and the level of mobility of the device. In this paper, we are asking the question of whether such sparse information can help to identify the paths followed by mobile connected devices throughout the day. If such a task is possible, then we would not only enable continuous mobility path estimation for smartphones, but also for the millions of future connected "things".
Full image micro-PIV analysis of transient and stationary flow patterns in microfluidic structures under piezo actuation (2006)

In this work a method for investigating acoustic forces in microfluidic structures is presented. By comparing, and combining, full-image micro-PIV measurements with CFD calculations, a higher understanding of acoustic coupling in microfluidic can be obtained.
Optic nerve disorders (2007)

1. Anatomy and Physiology of the Optic Nerve 2. Clinical Testing of Optic Nerve Function 3. Papilledema 4. Optic Neuritis 5. Ischemic Optic Neuropathy 6. Compression of the Anterior Visual Pathways 7. Developmental and Hereditary Optic Nerve Disorders 8. Toxic and Nutritional Optic Neuropathy 9. Traumatic Optic Neuropathy 10. Miscellaneuous Optic Neuropathies
Recombination of Homologous DNA Fragments Transfected Into Mammalian Cells Occurs Predominantly by Terminal Pairing (1986)

The mechanism by which double-strand cleavages stimulate the joining of plasmid DNA fragments introduced into cultured mammalian cells was investigated by cotransfecting pairs of plasmids encoding deletion mutations in a dominant selectable gene into LMtk- cells. Plasmid recombination substrates were produced by creating deletions of different sizes within the neo coding region of the pSV2neo plasmid. Complementing pairs of deleted plasmid DNAs were linearized at specific unique sites before cotransfection into mouse LMtk- cells by the calcium phosphate precipitation method. Cleaving one donor plasmid produced a 4- to 10-fold stimulation in the production of colonies able to survive in medium containing G-418. The linearization of the second plasmid further increased the efficiency by another factor of 6 to 15 when the cut was made on the opposite side of the homology, approximately equidistant from the center of the overlap. Fifty-seven individual G-418-resistant colonies representing the products of individual crosses were isolated, and the genomic DNAs containing the presumably integrated, functional recombinant neo genes were analyzed on Southern blots. A band consistent with the exchange of markers flanking the neo gene was present in 90% of the DNAs examined. In only one case was the pattern indicative of either a double crossover or a gene conversion event. These results support the idea that homologous extrachromosomal DNA fragments are joined through annealing of overlapping single-stranded ends. This DNA-joining phenomenon may represent the activity of cellular DNA repair enzymes; its relationship to genetic recombination occurring at the chromosomal level remains to be determined.
Synthetic Initialization Vector (SIV) Authenticated Encryption Using the Advanced Encryption Standard (AES) (2008)

This memo describes SIV (Synthetic Initialization Vector), a block cipher mode of operation.SIV takes a key, a plaintext, and multiple variable-length octet strings that will be authenticated but not encrypted.It produces a ciphertext having the same length as the plaintext and a synthetic initialization vector.Depending on how it is used, SIV achieves either the goal of deterministic authenticated encryption or the goal of nonce-based, misuse-resistant authenticated encryption.
Genome sequence and virulence variation-related transcriptome profiles of Curvularia lunata, an important maize pathogenic fungus (2014)

The data will facilitate a full revelation of pathogenic mechanism and a better understanding of virulence differentiation of C. lunata.
Ground-truth dataset and baseline evaluations for image base-detail separation algorithms (2015)

Base-detail separation is a fundamental computer vision problem consisting of modeling a smooth base layer with the coarse structures, and a detail layer containing the texture-like structures. One of the challenges of estimating the base is to preserve sharp boundaries between objects or parts to avoid halo artifacts. Many methods have been proposed to address this problem, but there is no ground-truth dataset of real images for quantitative evaluation. We proposed a procedure to construct such a dataset, and provide two datasets: Pascal Base-Detail and Fashionista Base-Detail, containing 1000 and 250 images, respectively. Our assumption is that the base is piecewise smooth and we label the appearance of each piece by a polynomial model. The pieces are objects and parts of objects, obtained from human annotations. Finally, we proposed a way to evaluate methods with our base-detail ground-truth and we compared the performances of seven state-of-the-art algorithms.
NKG2D+CD4+ T Cells with Immune Suppressive Property Increase in Patients with Colorectal Cancer (2010)

Some studies suggest that small populations of CD4+ T cells with activation-independent, constitutive, NKG2D expression are found in normal peripheral blood and have immune suppressive properties. The present study was designed to investigate NKG2D expression on CD4+ T lymphocytes and its relationship to immune evasion in colorectal cancer patients. We examined NKG2D expression on both circulating and tumor infiltrating CD4+ and CD8+ T cells or NK cells and evaluated it by multicolor flow cytometry. Furthermore, intracellular cytokine staining was carried out to determine the cytokine profile of NKG2D+CD4+ T cells in colorectal cancer patients. As a result, NKG2D expression on circulating and tumor-infiltrating CD8+ T cells and NK cells was downregulated in colorectal cancer patients. On the other hand, circulating and tumor-infiltrating NKG2D+CD4+ T cells increased in colorectal cancer patients. NKG2D+CD4+ T cells produced more immune suppressive cytokines, such as interleukin-10 and transforming growth factor-1β, than did NKG2D-CD4+ T cells. Increased NKG2D+CD4+ T cells as well as decreased NKG2D expression on CD8+ T cells and NK cells may be one of the key mechanisms responsible for immune evasion by tumors in colorectal cancer.
Water movement and salinty in the Yarra and Maribyrnong estuaries (1982)

Water movement and salinity studies have shown that the distance of salt-water penetration up the Yarra estuary is dependent upon the magnitude of the flow of the incoming Yarra River. During June, July and August 1977, salinity, temperature and current profiles showed that the Yarra and Maribyrnong estuaries had distinct stratification, the Yarra being classified as a 'salt-wedge' estuary and the Maribyrnong as a 'partially mixed' estuary. The residence time of water in the Yarra estuary was estimated to vary between 1 day and several weeks, depending upon the river flow at the time. The influence of freshwater discharge, tidal state and weather conditions are discussed.
Synthesis, Characterization, and Dehydrogenation Activity of an Iridium Arsenic Based Pincer Catalyst (2014)

A new arsenic-based pincer (AsOCOAs) dehydrogenation catalyst has been synthesized, IrHCl{2,6-C6H3-(O-AsBut2)} (3). Treatment with an equivalent of base (NaO-tert-butoxide) under an atmosphere of hydrogen gas affords the dihydride catalyst IrH2{2,6-C6H3-(O-AsBut2)} (4). The activity of 3 was explored under transfer dehydrogenation conditions with cyclooctane and tert-butyl ethylene, giving a maximum turnover number of 960 at 175 °C in 24 h. Acceptorless dehydrogenations were also explored with pyrrolidine-based molecules, ethylperhydrocarbazole (5), methylperhydroindole (6), and butylpyrrolidine (7), in which all results indicate 3 is roughly half as active as the analogous phosphine-based pincer catalyst 2. Akin to the phosphine pincer catalysts the activity was seen to steadily improve with increasing temperature, peaking at 175 °C, upon which thermal decomposition sets in.
Association between esodeviation and primary open-angle glaucoma: the 2010–2011 Korea National Health and Nutrition Examination Survey (2020)

Esodeviation was independently associated with POAG in the Korean population. This could be the result of, at least in part, ocular-adduction-induced greater strain on the temporal optic nerve head and peripapillary tissues, which makes eyes with esodeviation more vulnerable to POAG.
A Direct Conversion Receiver Adopting Balanced Three-Phase Analog System (2010)

Recent advanced technology makes digital circuits small and the number of digital functional blocks that can be integrated on a single chip is increasing rapidly. On the other hand, reduction in the size of analog circuits has been insufficient. This means that the analog circuit area is relatively large, and reducing analog circuit area can be effective to make a low cost radio receiver. In this paper, a new wireless receiver architecture that occupies small analog area is proposed, and measured results of the core analog blocks are described. To reduce the analog area, a balanced 3-phase analog system is adopted and the functions of analog baseband filters and VGAs are moved to the digital domain. The test chip consists of a 3-phase downconverter and a 3-phase ADC. There is no analog baseband filter on the chip and the analog filter is assumed to be replaced with a digital filter. The downconverter and ADC occupy 0.28mm2. The measured results show the possibility that the requirements for IMT-2000 are fulfilled even with a small chip area.
Multi-Scale Modeling and Simulation Flow for Oscillatory Neural Networks for Edge Computing (2021)

An oscillatory neural network (ONN) is a neuromorphic computing paradigm based on encoding of information into the phases of oscillators. In this paper we present an ONN whose elemental unit, the "neuron", is implemented through a beyond-CMOS device based on vanadium dioxide (VO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> ). Such ONN technology provides ultra-low power solutions for performing pattern recognition tasks, and it is ideally suited for edge computing applications. However, exploring the groundwork of the beyond-CMOS ONN paradigm is mandatory premise for its industry-level exploitation. Such foundation entails the building of a holistic simulation flow from materials and devices to circuits, to allow assessment of ONN performance. In this work we report results of this advanced designing approach with special focus over the VO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> oscillator. This establishes the ground to scale up to evaluate beyond-CMOS ONN functionalities for pattern recognition.