gebhart/patrepeval huggingface dataset:
High Data Density Near-Field Chipless-RFID Tags With Synchronous Reading (2020)

Near-field chipless-RFID tags with high data density and synchronous reading capability are presented and experimentally validated in this paper. The tags consist of a chain of rectangular patches etched or printed at predefined positions on a dielectric substrate, including rigid or flexible (i.e., plastic or even paper) substrates. Patch dimensions determine the binary state, where the larger and smaller patches are associated with the logic `1' and `0' states, respectively, or vice versa. For sequentially and synchronously reading the bits, a sensitive element able to determine the presence of the patches and their size by proximity (through near field using microwaves) is considered. Such element is a microstrip line loaded with a pair of rectangular complementary split ring resonators (CSRRs), one etched inside the other in the ground plane. When the tag chain is displaced at short distance over the CSRRs, the larger patches modify the resonance frequency of both sensing CSRRs, whereas the lower patches do only alter the resonance frequency of the smaller CSRR. Consequently, the ID code is contained in the patch dimensions, and the presence of a patch (regardless of its size) determines the reading times (clock signal), necessary for synchronous reading. Tag reading in this system proceeds by feeding the CSRR-loaded line (reader) with a pair of harmonic signals tuned to the resonance frequencies of the bare CSRRs. Both signals are amplitude modulated (AM) at the output port as consequence of tag motion, and the respective envelope functions contain both the clock signal and the tag ID code. The ID codes of several 16-bit tags, implemented on different substrates (microwave substrate, plastic and paper) and exhibiting a per unit length density of 1.67 bit/cm, have been inferred with the dedicated reader for validation purposes.
Linearizing nonlinear optics (2017)

We demonstrate how Fourier Nonlinear Optics elegantly merges the simplicity of linear optics with the power of conventional nonlinear optics to achieve the decoupling of frequencies, amplitudes and phases in nonlinear processes.
Accurate and fast in-plane displacement measurement method for large-scale structures by utilizing repeated pattern (2013)

Imaging based nondestructive monitoring systems are critical for evaluation of large-scale infrastructures. In this study, an accurate and fast in-plane displacement measurement method based imaging technique is developed for the purpose of health monitoring of large-scale infrastructures such as high building, long bridge, etc. The build-in repeated patterns on infrastructure facade, such as tile, checker, and brick wall pattern is used to measure the in-plane displacement distribution accurately. By performing down-sampling and intensity interpolation image processing to the images captured before and after deformations, multiple phase-shifted moire fringe can be obtained simultaneously. The phase distribution of the moire fringe is calculated using the phase shifting method and discrete Fourier transform technique. In the present study, both the fundamental and high frequency components are considered to analyze the repeated patterns. The in-plane displacement distribution can be obtained from the phase differences of the moire fringe before and after deformations. Compared with conventional displacement methods and sensors, the main advantages of the method developed herein are high-resolution, accurate, fast, low-cost, and easy to implement. The principle of the proposed inplane displacement measurement is presented. The effectiveness of our method is confirmed by a simple displacement measurement experiment. Experimental result showed that a sub-millimeter displacement could be successfully detected for the field of view with meter-scale.
Diversity of <i>ace</i> , a Gene Encoding a Microbial Surface Component Recognizing Adhesive Matrix Molecules, from Different Strains of <i>Enterococcus faecalis</i> and Evidence for Production of Ace during Human Infections (2000)

Our previous work reported that most Enterococcus faecalis strains adhered to the extracellular matrix proteins collagen types I and IV and laminin after growth at 46 degrees C, but not 37 degrees C, and we subsequently identified an E. faecalis sequence, ace, that encodes a bacterial adhesin similar to the collagen binding protein Cna of Staphylococcus aureus. In this study, we examined the diversity of E. faecalis-specific ace gene sequences among different isolates obtained from various geographic regions as well as from various clinical sources. A comparison of nucleotide and deduced amino acid sequences of Ace from nine E. faecalis strains identified a highly conserved N-terminal A domain, followed by a variable B domain which contains two to five repeats of 47 amino acids in tandem array, preceded by a 20-amino-acid partial repeat. Using 17 other strains collected worldwide, the 5' region of ace that encodes the A domain was sequenced, and these sequences showed > or =97.5% identity. Among the previously reported five amino acids critical for collagen binding by Cna of S. aureus, four were found to be identical in Ace from all strains tested. Polyclonal immune rabbit serum prepared against recombinant Ace A derived from E. faecalis strain OG1RF detected Ace in mutanolysin extracts of seven of nine E. faecalis strains after growth at 46 degrees C; Ace was detected in four different molecular sizes that correspond to the variation in the B repeat region. To determine if there was any evidence to indicate that Ace might be produced under physiological conditions, we quantitatively assayed sera collected from patients with enterococcal infections for the presence of anti-Ace A antibodies. Ninety percent of sera (19 of 21) from patients with E. faecalis endocarditis showed reactivity with titers from 1:32 to >1:1,024; the only 2 sera which lacked antibodies to Ace A had considerably lower titers of antibodies to other E. faecalis antigens as well. Human-derived, anti-Ace A immunoglobulins G purified from an E. faecalis endocarditis patient serum inhibited adherence of 46 degrees C-grown E. faecalis OG1RF to collagen types I and IV and laminin. In conclusion, these results show that ace is highly conserved among isolates of E. faecalis, with at least four variants related to the differences in the B domain, is expressed by different strains during infection in humans, and human-derived antibodies can block adherence to these extracellular matrix proteins.
cDNA sequences from the alpha subunit of the fibronectin receptor predict a transmembrane domain and a short cytoplasmic peptide. (1986)

The fibronectin receptor is a complex of two cell surface glycopeptides that mediate the binding of cells to fibronectin substrata. To study the structure of this receptor, we have isolated cDNA clones coding for the human fibronectin receptor alpha subunit from a lambda gt11 placental cDNA library. The cDNAs code for 229 amino acids from the COOH terminus of the alpha subunit. The deduced sequence has a hydrophobic region with properties characteristic of a membrane-spanning domain. From the membrane-spanning domain to the COOH terminus are 23-28 amino acids that are likely to constitute the cytoplasmic domain. These results establish the fibronectin receptor alpha subunit as an integral membrane protein.
Therapeutic ultrasound : 5th International Symposium on Therapeutic Ultrasound, Boston, Massachusetts, 27-29 October 2005 (2006)

All manuscripts were peer-reviewed. This book contains the papers from the 5th International Symposium on Therapeutic Ultrasound, the only international meeting dedicated solely to this area. The meeting covers topics ranging from basic biological and physical research to clinical application. Specific topics included are: basic principles of therapeutic ultrasound; ultrasound bioeffects; monitoring and treatment planning; brain; cavitation and bubbles; devices; animal studies; clinical studies; drug delivery and in vitro studies; as well as quality assurance.
A New Adsorbent For Ambient Temperature Desulfurization of Natural Gas (2005)

The sulfur content of natural gas or any hydrocarbon fuel needs to be reduced to very low levels to ensure long-term stable electrochemical performance for both high and low temperature fuel cells. This paper presents the development and test results of a new physical adsorbent for natural gas desulfurization. The sorbent effectively removes all naturally occurring sulfur compounds and sulfur-bearing odorants at ambient temperature with very high capacity. In a series of tests, the sulfur adsorption capacity of the new material is compared to other commercially available and specially prepared sorbents. The new sorbent can also be fully regenerated. The effectiveness of the sorbent was tested in the presence of water vapor, which is present in natural gas at ppmv levels. The effect of operating temperature on capacity was evaluated. The efficacy of the sorbent for carbonyl sulfide removal was also investigated.
Electrochemical Properties of MOF Anode Materials for Rechargeable Na Ion Battery (2013)

Abstract not Available.
The Effects of Serotonin Antagonists in an Animal Model of Sleep-Disordered Breathing (1996)

Recent studies have shown excitatory effects of serotonin on upper airway motoneurons. This excitatory effect is normally present and arises from cells in the caudal raphe nuclei. The firing of these serotonergic neurons is reduced during sleep. To determine the importance of serotonin in the maintenance of patient airways and normal respiration in waking in obstructive sleep apnea, we studied the effects of two serotonin antagonists on upper airway dilator muscle activity, diaphragm activity, Sao2, and upper airway cross-sectional area in an animal model of sleep-disordered breathing, the English bulldog. Systemic administration of both antagonists resulted in significant reductions in the peak amplitudes of upper airway muscle respiratory bursts (range, 39 to 62% suppression; p < 0.05). Lesser reductions in diaphragm activity were noted (range, 10 to 33% suppression; p < 0.05). Oxyhemoglobin saturations also fell (p < 0.05), coinciding with suppressions in upper airway muscle activity. With reductions in dilator muscle activity, upper airway cross-sectional areas, as measured with cine CT, showed significant inspiratory collapse. These results support the hypothesis that serotonin is important in the maintenance of patent upper airways in obstructive sleep apnea.
Raman Chemical Imaging of Breast Tissue (1997)

Raman chemical imaging of lipid and protein distribution in breast is performed without the use of invasive contrast agents. Instead, tissue component discrimination is based on the unique vibrational spectra intrinsic to lipids and proteins. Component discrimination is possible using ratiometric image analysis techniques. However, chemical image contrast is enhanced when techniques are employed that use the entire Raman spectrum, including peak shift analysis and multivariate image analysis. Visualization of breast tissue components is an essential step in the development of a quantitative Raman ‘optical biopsy’ technique suitable for the non-invasive detection and classification of breast cancer. A high spatial/spectral resolution Raman imaging microscope is used that employs a liquid crystal tunable filter (LCTF). The imaging performance of the Raman microscope is quantitated with the measurement of the imaging system’s contrast transfer function (CTF). A comparison between the theoretical (diffraction limited) CTF and the measured CTF establishes that the LCTF does not produce appreciable image degradation. © 1997 by John Wiley & Sons, Ltd.
Single-camera panoramic stereo imaging system with a fisheye lens and a convex mirror (2011)

This paper presents a panoramic stereo imaging system which uses a single camera coaxially combined with a fisheye lens and a convex mirror. It provides the design methodology, trade analysis, and experimental results using commercially available components. The trade study shows the design equations and the various tradeoffs that must be made during design. The system's novelty is that it provides stereo vision over a full 360-degree horizontal field-of-view (FOV). Meanwhile, the entire vertical FOV is enlarged compared to the existing systems. The system is calibrated with a computational model that can accommodate the non-single viewpoint imaging cases to conduct 3D reconstruction in Euclidean space.
Phoneme-Based Contextualization for Cross-Lingual Speech Recognition in End-to-End Models (2019)

Contextual automatic speech recognition, i.e., biasing recognition towards a given context (e.g. user's playlists, or contacts), is challenging in end-to-end (E2E) models. Such models maintain a limited number of candidates during beam-search decoding, and have been found to recognize rare named entities poorly. The problem is exacerbated when biasing towards proper nouns in foreign languages, e.g., geographic location names, which are virtually unseen in training and are thus out-of-vocabulary (OOV). While grapheme or wordpiece E2E models might have a difficult time spelling OOV words, phonemes are more acoustically salient and past work has shown that E2E phoneme models can better predict such words. In this work, we propose an E2E model containing both English wordpieces and phonemes in the modeling space, and perform contextual biasing of foreign words at the phoneme level by mapping pronunciations of foreign words into similar English phonemes. In experimental evaluations, we find that the proposed approach performs 16% better than a grapheme-only biasing model, and 8% better than a wordpiece-only biasing model on a foreign place name recognition task, with only slight degradation on regular English tasks.
Quantum Key Distribution and Optical Networking (2008)

Quantum key distribution offers a unique opportunity in securing next-generation optical networks. Recent advances in the integration of QKD within conventional DWDM network environments will be presented along with guidelines for practical system engineering.
The influence of added lysine during lactation on sow and litter performance (1991)

An on-farm field study utilizing 287 crossbred sows was conducted to investigate the influence of additional dietary lysine during lactation on sow and litter performance. At farrowing, sows were randomly assigned to one of two milo-soybean meal diets containing either .65% (13.5 % CP) or .85% lysine (16.3% CP). Average sow parity was 3.75, and sows on both treatments had a similar number of pigs born alive and similar pig and litter birth weights. All litters were equalized to approximately 9.5 pigs within 24 hours following farrowing, and average lactation length was 21 d. No treatment x parity interactions were observed for any response criteria. Pig and litter weaning weights were increased from 13.10 and 114.7 to 13.65 and 120.9 lb for sows fed the .65% and .85% lysine diets, respectively. Pig survival was excellent for both groups of sows; however, survivability tended to be improved for 2nd and 4th parity sows fed the .85% lysine diet. Increased dietary lysine during lactation resulted in no difference for number days from weaning to estrus; however, the subsequent farrowing rate for the sows fed the .85% lactation diet was 75.7% as compared to 70.4% for the sows fed the .65% lysine diet. These results indicate that increased dietary lysine during lactation improved pig and litter weaning weights.; Swine Day, Manhattan, KS, November 21. 1991
Key aspects on ESD protection design for ICs: mixed-mode simulation and RF/mixed-signal ESD (2003)

This paper reviews the key aspects in on-chip ESD (electrostatic discharge) protection circuitry design. The mixed-mode ESD simulation-design methodology is discussed to address the design prediction task. New challenges in ESD protection design for RF/mixed-signal ICs are discussed that include the complex ESD-circuit interactions. RF ESD protection characterization and full-chip ESD protection solutions.
Pallidal deep brain stimulation for DYT6 dystonia (2011)

While early results of pallidal DBS for DYT6 dystonia are encouraging, further research and additional subjects are needed both to optimise stimulation parameters for this population and to elucidate more accurately their response to surgical treatment.
Learning detectors of malicious web requests for intrusion detection in network traffic (2017)

This paper proposes a generic classification system designed to detect security threats based on the behavior of malware samples. The system relies on statistical features computed from proxy log fields to train detectors using a database of malware samples. The behavior detectors serve as basic reusable building blocks of the multi-level detection architecture. The detectors identify malicious communication exploiting encrypted URL strings and domains generated by a Domain Generation Algorithm (DGA) which are frequently used in Command and Control (C&C), phishing, and click fraud. Surprisingly, very precise detectors can be built given only a limited amount of information extracted from a single proxy log. This way, the computational requirements of the detectors are kept low which allows for deployment on a wide range of security devices and without depending on traffic context such as DNS logs, Whois records, webpage content, etc. Results on several weeks of live traffic from 100+ companies having 350k+ hosts show correct detection with a precision exceeding 95% of malicious flows, 95% of malicious URLs and 90% of infected hosts. In addition, a comparison with a signature and rule-based solution shows that our system is able to detect significant amount of new threats.
Improved Quantum Ternary Arithmetics (2015)

Qutrit (or ternary) structures arise naturally in many quantum systems, particularly in certain non-abelian anyon systems. We present efficient circuits for ternary reversible and quantum arithmetics. Our main result is the derivation of circuits for two families of ternary quantum adders, namely ripple carry adders and carry look-ahead adders. The main difference to the binary case is the more complicated form of the ternary carry, which leads to higher resource counts for implementations over a universal ternary gate set. Our ternary ripple adder circuit has a circuit depth of $O(n)$ and uses only $1$ ancilla, making it more efficient in both, circuit depth and width than previous constructions. Our ternary carry lookahead circuit has a circuit depth of only $O(\log\,n)$, while using with $O(n)$ ancillas. Our approach works on two levels of abstraction: at the first level, descriptions of arithmetic circuits are given in terms of gates sequences that use various types of non-Clifford reflections. At the second level, we break down these reflections further by deriving them either from the two-qutrit Clifford gates and the non-Clifford gate $C(X): |i,j\rangle \mapsto |i, j + δ_{i,2} \mod 3\rangle$ or from the two-qutrit Clifford gates and the non-Clifford gate $P_9=\mbox{diag}(e^{-2 π\, i/9},1,e^{2 π\, i/9})$. The two choices of elementary gate sets correspond to two possible mappings onto two different prospective quantum computing architectures which we call the metaplectic and the supermetaplectic basis, respectively. Finally, we develop a method to factor diagonal unitaries using multi-variate polynomial over the ternary finite field which allows to characterize classes of gates that can be implemented exactly over the supermetaplectic basis.
Curaxins: Anticancer Compounds That Simultaneously Suppress NF-κB and Activate p53 by Targeting FACT (2011)

Effective eradication of cancer requires treatment directed against multiple targets. The p53 and nuclear factor κB (NF-κB) pathways are dysregulated in nearly all tumors, making them attractive targets for therapeutic activation and inhibition, respectively. We have isolated and structurally optimized small molecules, curaxins, that simultaneously activate p53 and inhibit NF-κB without causing detectable genotoxicity. Curaxins demonstrated anticancer activity against all tested human tumor xenografts grown in mice. We report here that the effects of curaxins on p53 and NF-κB, as well as their toxicity to cancer cells, result from "chromatin trapping" of the FACT (facilitates chromatin transcription) complex. This FACT inaccessibility leads to phosphorylation of the p53 Ser(392) by casein kinase 2 and inhibition of NF-κB-dependent transcription, which requires FACT activity at the elongation stage. These results identify FACT as a prospective anticancer target enabling simultaneous modulation of several pathways frequently dysregulated in cancer without induction of DNA damage. Curaxins have the potential to be developed into effective and safe anticancer drugs.
A randomized controlled trial of gaze‐contingent music reward therapy for major depressive disorder (2020)

Gaze-contingent music reward therapy can modify attention biases in depression, but clear differential clinical effects did not emerge. Theoretical and practical implications are discussed.
The Chemistry of Perchlorate in the Environment (2006)

The persistence of perchlorate in groundwater can be understood from its chemical and physical properties and its chemical reactivity. Although perchlorate is a powerful oxidizing agent, its notorious lack of reactivity can be understood from the requirement that reduction involves oxygen atom transfer. Because perchlorate is relatively unreactive, remediation schemes involving direct chemical or electrochemical reduction are not effective. The low hydration energy of perchlorate anions favors sorption on organic anion exchange resins. Remediation methods involving collection on such resins prior to reduction or some other means of disposal are feasible. Biological systems that naturally reduce and degrade perchlorate are also a potentially practical means of remediating perchlorate-contaminated groundwater in a cost-effective manner.
Method for making a material, particularly for emission control catalyst (2006)

A method for forming a material comprising a metal oxide supported on a support particle comprising the steps of: (a) providing a precursor mixt. comprising a soln. contg. one or more metal cations and (i) a surfactant; or (ii) a hydrophilic polymer; said precursor mixt. further including support particles; and (b) treating the precursor mixt. from (a) above by heating to remove the surfactant or hydrophilic polymer and form metal oxide having nanosized grains, wherein at least some of the metal oxide formed in step (b) is deposited on or supported by the support particles and the metal oxide has an oxide matrix that includes metal atoms derived solely from sources other than the support particles. The disclosure and examples pertain to emission control catalysts. [on SciFinder(R)]
SpiderRadio: An Incumbent Sensing Implementation for Cognitive Radio Networking Using IEEE 802.11 Devices (2010)

Spectrum sensing is one of the critical features in cognitive radio based dynamic spectrum access networking. In this paper, we discuss a new spectrum sensing technique for primary incumbent detection. The proposed method is based on observing the PHY errors, received signal strength and n-moving window averaging of the observed measurement. The sensing parameters are dynamically optimized based on the operating radio environment. This sensing method is implemented in SpiderRadio, a cognitive radio testbed based on off-the-shelf IEEE 802.11 devices. Experimental results show that the proposed technique results in very low sensing delay and failure probability.