gebhart/patrepeval huggingface dataset:
Design and Implementation of a Wake-Up Radio Receiver for Fast 250 kb/s Bit Rate (2019)

Wake-up radio (WuR) systems have appeared as a solution for reducing power consumption. As IEEE 802.11 is the preferred radio technology, IEEE 802.11 task group TGba focuses on the IEEE 802.11-based WuR standardization. We present an implementation of a wake-up receiver (WuRx), based on off-the-shelf components, using a microcontroller unit for decodification at the fastest bit rate of 250 kb/s allowed by TGba. The proof-of-concept that has been developed, does not aim at presenting an optimized power consumption solution for WuRx, but at enabling a comparative evaluation for several reception cases based on latency and power utilization. The evaluation of the performance shows the WuRx robustness in presence of frame receptions different from the expected for WuR operation or addressed to other WuRx in the surrounding area. This letter also presents the convenience of implementing a mechanism for avoiding consecutive erroneous WuRx identification matchings within the same WuR procedure.
Automatic Segmentation of Multiparty Dialogue (2006)

In this paper, we investigate the problem of automatically predicting segment boundaries in spoken multiparty dialogue. We extend prior work in two ways. We first apply approaches that have been proposed for predicting top-level topic shifts to the problem of identifying subtopic boundaries. We then explore the impact on performance of using ASR output as opposed to human transcription. Examination of the effect of features shows that predicting top-level and predicting subtopic boundaries are two distinct tasks: (1) for predicting subtopic boundaries, the lexical cohesion-based approach alone can achieve competitive results, (2) for predicting top-level boundaries, the machine learning approach that combines lexical-cohesion and conversational features performs best, and (3) conversational cues, such as cue phrases and overlapping speech, are better indicators for the top-level prediction task. We also find that the transcription errors inevitable in ASR output have a negative impact on models that combine lexical-cohesion and conversational features, but do not change the general preference of approach for the two tasks.
Structure of aluminium methylphosphonate, AIMepO-β, with unidimensional channels formed from ladder-like organic–inorganic polymer chains (1995)

The crystal structure of a microporous aluminium methylphosphonate AIMepO-β is described; the skeleton built up of fused four-ring chain forms unidimensional channels of approximately 5.8 Å cross-section fringed with methyl groups running parallel to the c-axis.
Synthesis, Characterization, and in Vitro Antitumor Activity of Osteotropic Diam(m)ineplatinum(II) Complexes Bearing a <i>N</i>,<i>N</i>-Bis(phosphonomethyl)glycine Ligand (2003)

A series of osteotropic (bone-seeking) [(bis(phosphonomethyl)amino-kappaN)acetato-kappaO(2-)]platinum(II) complexes attached to diammine, ethane-1,2-diamine, cis-R,S-cyclohexane-1,2-diamine, trans-S,S-cyclohexane-1,2-diamine, or trans-R,R-cyclohexane-1,2-diamine has been synthesized in accord with the concept of drug targeting and characterized by elemental analysis, (1)H, (13)C, and (31)P NMR spectroscopy. The in vitro antitumor activity in ovarian cancer cells (CH1) has been determined by means of the MTT assay. In this cisplatin-sensitive cell line the complexes containing cyclohexane-1,2-diamine (chxn) displayed a high activity in comparison to the diammine and ethane-1,2-diamine counterparts. In agreement with structure-activity relationships of other chxn-containing platinum(II) complexes both [(bis(phosphonomethyl)amino-kappaN)acetato-kappaO(2-)](trans-cyclohexane-1,2-diamine)platinum(II) complexes show superior potency than the corresponding cis-congener whereas the trans-R,R isomer displays the highest activity. Within the series of complexes under investigation, potency decreases depending on the coordinated amine ligand in the following order: trans-R,R-chxn > trans-S,S-chxn > NH(3) > or = cis-R,S-chxn > en.
Reaction of Antimony Pentachloride with Monoalkylbenzenes<sup>1</sup> (1963)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReaction of Antimony Pentachloride with Monoalkylbenzenes1Peter Kovacic and Allen K. SparksCite this: J. Org. Chem. 1963, 28, 4, 972–974Publication Date (Print):April 1, 1963Publication History Published online1 May 2002Published inissue 1 April 1963https://pubs.acs.org/doi/10.1021/jo01039a023https://doi.org/10.1021/jo01039a023research-articleACS PublicationsRequest reuse permissionsArticle Views65Altmetric-Citations8LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
On-line monitoring and diagnosis of powersystem operating conditions using artificial neural networks (2003)

An adaptive pattern recognition methodology for online monitoring and diagnosis of power system operating conditions has been developed. It is implemented on highly parallel distributed architectures of the functional-link-net (FLN) type. The flat structure of the FLN allows the tasks of unsupervised learning, supervised learning, and associative recall to be carried out without intervention in network and data structures. The proposed methodology is capable of processing large bodies of information gathered by the data acquisition system in real time. It enhances the performance of the energy management system and effectively reduces the operator's response time. The real-time monitoring and diagnosis facility can quickly detect and identify abnormal operating conditions. The main features of the system are described.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Nonlithographic epitaxial SnxGe1−x dense nanowire arrays grown on Ge(001) (2003)

We have grown 1-μm-thick SnxGe1−x/Ge(001) epitaxial films with 0&lt;x&lt;0.085 by molecular-beam epitaxy. These films evolve during growth into a dense array of SnxGe1−x nanowires oriented along [001], as confirmed by composition contrast observed in scanning transmission electron microscopy in planar view. The Sn-rich regions in these films dominate optical absorption at low energy; phase-separated SnxGe1−x alloys have a lower-energy band gap than homogeneous alloys with the same average Sn composition.
Structure-to-glass transition temperature relationships in high temperature stable condensation polyimides (1985)

The presence of a hexafluoroisopropylidene (6F) connecting group in aryl dianhydrides used to prepare aromatic condensation polyimides provides high glass transition temperature (T sub g) polyimides with excellent thermo-oxidative stability. The purpose of this study was to determine if a trifluorophenyl-ethylidene (3F) connecting group would have a similar effect on the T sub g of aromatic condensation polyimides. A new dianhydride containing the 3F connecting group was synthesized. This dianhydride and an aromatic diamine also containing the 3F connecting group were used together and in various combinations with known diamines or known dianhydrides, respectively, to prepare new 3F containing condensation polyimides. Known polyimides, including some with the 6F connecting linkage, were also prepared for comparison purposes. The new 3F containing polymers and the comparison polymers were prepared by condensation polymerization via the traditional amic-acid polymerization method in N,N-dimethylacetamide solvent. The solutions were characterized by determining their inherent viscosities and then were thermally converted into polyimide films under nitrogen atmosphere at 300 to 500 C, usually 350 C. The T sub g's of the films and resin discs were then determined by thermomechanical analysis and were correlated as a function of the final processing temperatures of the films and resin discs. The results showed that similarities existed in the T sub g's depending on the nature of the connecting linkage in the monomers used to prepare the condensation polyimides.
Association of the antibodies against human papillomavirus 16 E4 and E7 proteins with cervical cancer positive for human papillomavirus DNA (1993)

Occurrence of the antibodies against human papillomavirus (HPV) 16 proteins E4 and E7 is specifically but independently associated with cervical cancer. To correlate HPV DNA and antibody data, we examined the biopsy specimens and sera, by polymerase chain reaction (PCR) and by ELISA, respectively, from 51 patients with cervical cancer (including 3 recurrent cases) and 22 with cervical intra-epithelial neoplasia. Consensus primers for the L1 region were used for PCR and bacterially expressed, purified fusion protein HPV-16 E4 and non-fusion protein HPV-16 E7 were used for ELISA. HPV-16 DNA and other HPV types were detected in 17 and 25, respectively, out of 51 cases of cervical cancer. Ten out of the 17 HPV-16-DNA-positives were positive either for anti-E4 or for anti-E7: positivities for anti-E4, for anti-E7, and for both were 6/17, 5/17 and 1/17 respectively. Three anti-E7-positives consisted of those for HPV-33, -52 and -58 DNA, suggesting that limited cross-reaction occurred between the HPV types. Among the HPV-16-DNA-positive cases of cancer, lymph-node or distant metastasis was recorded more frequently in the seropositives than in the seronegatives. Our results show that the HPV-16 anti-E4 or anti-E7 occurs in some, but not in all, of the HPV-16-DNA-positive cases, and support the hypothesis that the presence of the HPV-16 antibodies can be used as a marker for possible metastasis.
Novel Fingerprint Image Enhancement Algorithm (2008)

The purpose of this paper is to investigate the performance of a three-step procedure for the fingerprint identification and enhancement, using CLAHE (contrast limited adaptive histogram equalization) together with applying 'clip limit', standard deviation analysis and sliding neighborhood as stages during processing of the fingerprint image. Firstly, CLAHE with clip limit is applied to enhance the contrast of the small tiles existing in the fingerprint image while using a bilinear interpolation to combine the neighboring tiles, eliminating the artificially induced boundaries. In a second step, the image is partitioned into an array of distinct blocks represented by matrices. Standard deviation of the matrix elements is calculated for each block and is used to remove the image background and obtain the boundaries for the region of interest. Finally, by using a slide neighborhood processing, an enhancement of the image is obtained by clarifying the Minutiae (endpoints and bifurcations) in each specific pixel, a process known as thinning. The paper presents the motivation for developing this method, its phases, and its possible advantages through a simulated investigation.
Time-borrowing platform in the Xilinx UltraScale+ family of FPGAs and MPSoCs (2016)

This paper presents enhancements to the Xilinx UltraScale+ clocking architecture to support fine-grain time-borrowing. Time borrowing improves performance by redistributing timing slack between fast and slow paths. The Ultra-Scale+ architecture introduces programmable hardware delays and pulse generators embedded in the clocking tree to support time-borrowing based both on clock skew scheduling and pulsed latches. This programmable hardware allows borrowing from a few picoseconds to multiple nanoseconds between sequential pipeline stages without any changes to RTL, placement or routing. Vivado algorithms automatically determine when to skew flip-flop clock or convert them to pulsed latches to achieve the highest possible performance. Using the default Vivado flow, this programmable time-borrowing platform delivers 5.5% F <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> increase on average over a suite of 89 industrial designs. It is especially effective on high-speed applications, delivering up to 13.7% F <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">max</sub> increase on individual designs. We also demonstrate that using non-default features, such as delays cascades or increasing hold margin, can increase average performance gains to 7.4% and 8.5%, respectively. This platform incurs minimum area (less than 0.1% of total chip area) while staying robust in the presence of tight hold constraints and increasing process variation.
Genomic Analysis of Head and Neck Squamous Cell Carcinoma Cell Lines and Human Tumors: A Rational Approach to Preclinical Model Selection (2014)

These findings suggest that a correlation of gene mutations between HNSCC cell lines and human tumors may be used to guide the selection of preclinical models for translational research.
Impact of strain on the surface properties of transition metal carbide films: First-principles study (2010)

The effect of in-plane lattice strain on the atomic and electronic properties of low-index transition metal (M=Ti, Nb, and Ta) carbide surfaces is studied by first-principles molecular dynamics calculations using a pseudopotential plane-wave technique. The most stable cubic rock-salt phase is considered for carbides. The first-principle study of various [(001), (110), and metal-terminated (111)] carbide surfaces reveals that both compressive and tensile strains strongly affect surface relaxation and electronic properties (work function values and band structures). The most stable (001) carbide surfaces exhibit rumpling between transition metal and carbon atoms in the topmost surface layers, which depends on the applied strain. The work function (WF) for the metal-terminated (111) surfaces varies monotonically, rather strongly depending on the applied strain (the range of variation reaches about 1 eV), while the WF for the (001) surface varies nonmonotonically with a much smaller resulting variation over the wide range of the applied strains. Surface energy calculations show that surface stability is also governed by the applied strain.
Measurement of force vector field of robotic finger using vision-based haptic sensor (2008)

It is expected that the use of haptic sensors to measure the magnitude, direction, and distribution of a force will enable a robotic hand to perform dexterous manipulations. Therefore, we have developed a new type of finger-shaped haptic sensor that can measure a three-dimensional force vector field over a contact surface. The sensor consists of a transparent elastic body, two layers of internal blue and red markers, and a CCD camera to capture the movements of the markers. Using the elastic theory, we can calculate the force vector field from the captured movements of the markers. However, the elastic theory cannot be applied to the finger-shaped sensor because of its complicated shape. Therefore, we use actual measurements for the calibration in order to develop a prototype of the sensor. Then, we evaluate its basic performance. The result shows that the sensor performance can be improved further, and the sensor can be successfully used in a robotic hand.
Valproic acid adjunctive therapy for HIV-associated cognitive impairment: A first report (2006)

In vitro and animal model data demonstrate that valproic acid (VPA) can ameliorate HIV-associated neurotoxicity. The authors conducted a pilot 10-week placebo-controlled study of VPA 250 mg twice daily in 22 HIV-infected individuals with (n = 16) and without (n = 6) cognitive impairment. VPA was safe and well tolerated, with trends toward improved neuropsychological performance and brain metabolism in the impaired subjects.
Modification of firefly luciferase with a luciferin analog. Red light producing enzyme (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTModification of firefly luciferase with a luciferin analog. Red light producing enzymeEmil H. White and Bruce R. BranchiniCite this: J. Am. Chem. Soc. 1975, 97, 5, 1243–1245Publication Date (Print):March 1, 1975Publication History Published online1 May 2002Published inissue 1 March 1975https://pubs.acs.org/doi/10.1021/ja00838a049https://doi.org/10.1021/ja00838a049research-articleACS PublicationsRequest reuse permissionsArticle Views291Altmetric-Citations43LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Mechanical and Thermal Properties of the Plasticized PVC-ESBO (2005)

he thermal and mechanical properties of plasticized PVC with epoxidized soya bean oil(PVC-ESBO) are studied. The repulsive interactions are used to explain the effect of epoxidization on the modulus of PVC with ESBO and plasticizer. The glass transition temperature of PVC is a linear function of the epoxidization of ESBO plasticizer. The activation energies of stabilized PVC/ESBO is also influenced by dehydrorochlorination reaction and HCl evolution. Addition of ESBO improves thermal behaviour of PVC. The higher activation energies of Ca-Zn, Ba-Zn stabilizers are responsible for the stability of PVC-ESBO. The epoxidization level of ESBO also improves the mechanical properties and thermal stability of PVC.
Battery-free Wireless Identification and Sensing (2005)

The Wireless Identification and Sensing Platform (WISP) project explores an approach to provide power for sensor networks, based on passive radio-frequency-identification technology. In traditional passive RFID systems, ambient high-power readers interrogate battery-free devices, called tags, that modulate the interrogating signal to communicate a unique identifier to the reader. The WISP project aims to augment RFID tags with sensors so that tags can also send sensed data to the readers. We call these augmented tags wisps. Basing wisps on RFID has some immediate advantages. RFID tags communicate to ambient readers over distances of up to eight meters. Solutions compatible with RFID standards might therefore find quicker acceptance and see faster improvement than other solutions.
The Kinetic Significance of V <sup>5+</sup> in <i>n</i> -Butane Oxidation Catalyzed by Vanadium Phosphates (1997)

Maleic anhydride, a precursor to polyester resins, is made by oxidation of n-butane over vanadium phosphate catalysts. This system is of general interest because it is the only heterogeneously catalyzed, alkane-selective oxidation reaction in commercial use. Time-resolved in situ x-ray absorption spectroscopy shows that when either alphaI-VOPO4/SiO2 or (VO)2P2O7/SiO2 catalysts are exposed to n-butane, the rate of maleic anhydride formation is proportional to the rate of decay of V5+ species in the catalyst. Thus V5+ species are kinetically significant for the production of maleic anhydride and not just for the production of by-products. The results also suggest that V5+ species may play a role in the initial hydrogen abstraction from n-butane, the rate-determining step in the reaction sequence. V4+ sites appear to be responsible for by-product formation.
Molecular Containers Based on Amphiphilic PS-<i>b</i>-PMVE Dendrigraft Copolymers:  Topology, Organization, and Aqueous Solution Properties (2005)

The synthesis, characteristics, and properties of amphipatic, water-soluble dendrigrafts, with a polystyrene core and polystyrene-b-poly(methyl vinyl ether) (PS-b-PMVE) diblock as external branches, are described. The dendrigrafts are observed by AFM and TEM as egglike or long cylindrical objects which can self-organize intramolecularly in segregated subdomains forming flowerlike or strings of flowerlike objects. In organic solvents the dendrigrafts behave as fully soluble isolated macromolecules and show in water a low critical solubility temperature (LCST) at t > 30 degrees C. The ability of the amphiphilic PS-b-PMVE dendrigrafts to complex and transport in water organic (pyrene) and metallo-organic (manganese tetraphenyl porphyrin) molecules is investigated. The possibility to stabilize the high oxidation state of metallo-porphyrin complexes through their encapsulation into the dendrigraft is shown.
Spike Camera and Its Coding Methods (2017)

Summary form only given. This paper introduces a spike camera with a distinct video capture scheme and proposes two methods of decoding the spike stream for texture reconstruction. The spike camera captures light and accumulates the converted luminance intensity at each pixel. A spike is fired when the accumulated intensity exceeds the dispatch threshold. The spike stream generated by the camera indicates the luminance variation. Analyzing the patterns of the spike stream makes it possible to reconstruct the picture of any moment which enables the playback of high speed movement.
Statistical Biomechanical Surface Registration: Application to MR-TRUS Fusion for Prostate Interventions (2015)

A common challenge when performing surface-based registration of images is ensuring that the surfaces accurately represent consistent anatomical boundaries. Image segmentation may be difficult in some regions due to either poor contrast, low slice resolution, or tissue ambiguities. To address this, we present a novel non-rigid surface registration method designed to register two partial surfaces, capable of ignoring regions where the anatomical boundary is unclear. Our probabilistic approach incorporates prior geometric information in the form of a statistical shape model (SSM), and physical knowledge in the form of a finite element model (FEM). We validate results in the context of prostate interventions by registering pre-operative magnetic resonance imaging (MRI) to 3D transrectal ultrasound (TRUS). We show that both the geometric and physical priors significantly decrease net target registration error (TRE), leading to TREs of 2.35 ± 0.81 mm and 2.81 ± 0.66 mm when applied to full and partial surfaces, respectively. We investigate robustness in response to errors in segmentation, varying levels of missing data, and adjusting the tunable parameters. Results demonstrate that the proposed surface registration method is an efficient, robust, and effective solution for fusing data from multiple modalities.