gebhart/patrepeval huggingface dataset:
Two-Handed Gesture Recognition (2005)

Nowadays, computer interaction is mostly done using dedicated devices. But gestures are an easy mean of expression between humans that could be used to communicate with computers in a more natural manner. Most of the current research on hand gesture recognition for Human-Computer Interaction deals with one-handed gestures. But two-handed gestures can provide more efficient and easy to interact with user interfaces. It is particularly the case with two-handed gestures we do in the physical world, such as gestures to manipulate objects. It would be very valuable to permit to the user to interact with virtual objects in the same way that he/she interacts with physical ones. This paper presents a two-handed gesture database to manipulate virtual objects on the screen (mostly rotations) and some recognition experiment using Hidden Markov Models (HMMs). The results obtained with this state-of-the-art algorithm are really encouraging. These gestures would improve the interaction performance between the user and virtual reality applications.
THREE PARAMETERS OF THE SOLAR CYCLE: A S, B T AND B W (1999)

In this paper,the long term evolutionary trend of solar cycles is investigated on the basis of a statistical analysis of the north south asymmetry of the large sunspot groups in solar cycles Nos.12-22(1978-1995).The numbers of large spot groups in northern and southern hemispheres are denoted by N and S ,while the sums of spot groups' latitudes- B N and B S,respectively.Then three parameters are defined with the above four quantities, i.e. (1) the asymmetry index A S= (N-S)/(N+S); (2) the average latitude B T=( B N+ B S)/( N+S) ,where B S is negative;(3) the width of activity belt B W= B N/ N - B S/ S . The above mentioned 11 solar cycles yield the following statistical results.(1) The distributions of signs of A S and B T can be divided into three intervals:the 14th-20th cycles fall into positive intervals,while the other 4 cycles-negative ones.(2) When A S and B T are positive,the values of N-S for odd cycles are larger than those of the neighboring even cycles.When A S and B T are negative,the absolute values of N-S of even cycles are larger than those of odd ones.(3) When the absolute value of A S approaches 0.33 ( i.e.N/S or S/N is close to 2), A S changes sign.(4) B W exhibits a systematic evolution from its minimum,increasing at first and decreasing afterwards,in the time interval of 7 cycles. From the evolutionary trend of cycles Nos.12-22,it is speculated that the 23rd cycle would possess a southern hemisphere dominance in large sunspot activity.
A 95dB SNDR audio &#x0394;&#x03A3; modulator in 65nm CMOS (2011)

A discrete time single loop 3rd order 5-bit ΔΣ modulator is implemented in general purpose 65nm CMOS. A passive capacitor analog summing method without signal attenuation is developed and combined with an asynchronous self-timing successive approximation quantizer. The modulator achieves 95dB SNDR in audio bandwidth and consumes only 371µW from 1V supply. Under 0.6V supply, the SNDR performance keeps at 90.2dB with 133µW power dissipation. The active core area is 0.41mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> .
Gangliosides as High Affinity Receptors for Tetanus Neurotoxin (2009)

Tetanus neurotoxin (TeNT) is an exotoxin produced by Clostridium tetani that causes paralytic death to hundreds of thousands of humans annually. TeNT cleaves vesicle-associated membrane protein-2, which inhibits neurotransmitter release in the central nervous system to elicit spastic paralysis, but the molecular basis for TeNT entry into neurons remains unclear. TeNT is a approximately 150-kDa protein that has AB structure-function properties; the A domain is a zinc metalloprotease, and the B domain encodes a translocation domain and C-terminal receptor-binding domain (HCR/T). Earlier studies showed that HCR/T bound gangliosides via two carbohydrate-binding sites, termed the lactose-binding site (the "W" pocket) and the sialic acid-binding site (the "R" pocket). Here we report that TeNT high affinity binding to neurons is mediated solely by gangliosides. Glycan array and solid phase binding analyses identified gangliosides that bound exclusively to either the W pocket or the R pocket of TeNT; GM1a bound to the W pocket, and GD3 bound to the R pocket. Using these gangliosides and mutated forms of HCR/T that lacked one or both carbohydrate-binding pocket, gangliosides binding to both of the W and R pockets were shown to be necessary for high affinity binding to neuronal and non-neuronal cells. The crystal structure of a ternary complex of HCR/T with sugar components of two gangliosides bound to the W and R supported the binding of gangliosides to both carbohydrate pockets. These data show that gangliosides are functional dual receptors for TeNT.
The Electrochemical Properties of Nanocomposite Films Obtained by Chemical In Situ Polymerization of Aniline and Carbon Nanostructures (2012)

Interactions between the π bonds in the aromatic rings of polyaniline (PANI) with carbon nanostructures (CNs) facilitate charge transfer between the two components. Different types of phenyleneamine-terminated CNs, including carbon nano-onions (CNOs) and single-walled and multi-walled carbon nanotubes (SWNTs and MWNTs, respectively), were prepared as templates, and the CN/PANI nanocomposites were easily prepared with uniform core-shell structures. By varying the ratio of the aniline monomers relative to the CNs in the in situ chemical polymerization process, the thickness of the PANI layers was effectively controlled. The morphological and electrical properties of the nanocomposite were determined and compared. The thickness and structure of the PANI films on the CNs were characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), and infrared spectroscopy. TEM and SEM revealed that the composite films consisted of nanoporous networks of CNs coated with polymeric aniline. The electrochemical properties of the composites were investigated by cyclic voltammetry and electrochemical impedance spectroscopy. These studies showed that the CN/PANI composite films had lower resistance than pure polymeric films of PANI, and the presence of CNs much improved the mechanical stability. The specific electrochemical capacitance of the CNO/PANI composite films was significantly larger than for pure PANI.
The Interior Lowland Plains Unit of Mars: Evidence for a Possible Mud Ocean and Induced Tectonic Deformation (2000)

We conclude from MOC and MOLA data that the northern plains of Mars were infilled by a sediment-rich, mud ocean. Evidence for subsidence within the north polar basin and reversed channel-floor gradients are consistent with tectonic deformation due to the sediment load.
Regiospecific synthesis of the aminoimidazoquinoxaline (IQx) mutagens from cooked foods (1992)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTRegiospecific synthesis of the aminoimidazoquinoxaline (IQx) mutagens from cooked foodsDonald E. Bierer, John F. O'Connell, Jon R. Parquette, Charles M. Thompson, and Henry RapoportCite this: J. Org. Chem. 1992, 57, 5, 1390–1405Publication Date (Print):February 1, 1992Publication History Published online1 May 2002Published inissue 1 February 1992https://pubs.acs.org/doi/10.1021/jo00031a017https://doi.org/10.1021/jo00031a017research-articleACS PublicationsRequest reuse permissionsArticle Views597Altmetric-Citations7LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
Extra‐Large‐Pore Zeolites: Bridging the Gap between Micro and Mesoporous Structures (2010)

The conditions required to produce zeolites with low framework density and extra-large pores are discussed. Correlations between framework stability and geometrical and topological descriptors are presented. An attempt has been made to rationalize the synthesis of extra-large-pore zeolites in terms of the synthesis mechanism, the directing effect of the organic structure directing agent (OSDA), the framework atoms, and the gel concentration. Extra-large-pore zeolites, including the recently discovered chiral mesoporous ITQ-37, are described and their catalytic and adsorption properties discussed. Finally, strategies are presented for the preparation of extra-large-pore zeolites with different pore topologies that can fulfill pre-established catalytic and adsorption targets.
Hybrid interleaving with adaptive PLL loop for adaptive on-time controlled switching converters (2014)

Recently, pulse distribution method and Phase Lock Loop (PLL) method have been widely used for adaptive on-time controlled multi-phase DC-DC converters. The former is simple, but suffers duty cycle jittering with ripple cancellation effect of current feedback. Besides, the transient response is impaired by inability to synchronize PWM signals among phases. The latter is less noise-sensitive and allows overlapping of the PWM signals for faster response. However, the stability problem of PLL loop occurs under wide duty cycle range, but there is no model to predict the issue so far. Moreover, the circuit complexity increases with one PLL loop per phase. This paper presents an accurate small-signal model of PLL loop based on describing function to provide feedback design guideline. Next, an adaptive PLL loop is proposed to auto-tune control bandwidth under wide duty cycle range. After that, hybrid interleaving structure is proposed to significantly reduce the circuit complexity of PLL method, while remains comparable transient performance. Finally, the simulation and experimental results confirm the model accuracy and the effectiveness of proposed methods.
3D Printed Hollow-Core Terahertz Fibers (2018)

This paper reviews the subject of 3D printed hollow-core fibers for the propagation of terahertz (THz) waves. Several hollow and microstructured core fibers have been proposed in the literature as candidates for low-loss terahertz guidance. In this review, we focus on 3D printed hollow-core fibers with designs that cannot be easily created by conventional fiber fabrication techniques. We first review the fibers according to their guiding mechanism: photonic bandgap, antiresonant effect, and Bragg effect. We then present the modeling, fabrication, and characterization of a 3D printed Bragg and two antiresonant fibers, highlighting the advantages of using 3D printers as a path to make the fabrication of complex 3D fiber structures fast and cost-effective.
Mass spectrometric analysis of asparagine deamidation and aspartate isomerization in polypeptides (2010)

One of the most frequent modifications in proteins and peptides is the deamidation of asparagine, a spontaneous non-enzymatic reaction leading to a mixture of L,D-succinimidyl, L,D-aspartyl, and L,D-isoaspartyl forms, with L-isoaspartyl dominating. Spontaneous isomerization of L-Asp yields the same products. In vivo, these unusual forms of aspartate are repaired by the protein L-isoaspartyl O-methyltransferase enzyme, with the balance between isomerization and repair affecting the organism physiology. Mass spectrometric analysis of this balance involves isomer separation, iso-Asp/Asp quantification, and iso-Asp site identification. This review highlights the issues associated with these steps and discusses the prospects of high-throughput iso-Asp analysis.
Gianugo Polesello. Teatro – Gran Teatro. Completamento del Sacro Monte di San Carlo ad Arona, 1993. Concert Hall sul Waterfront a Copenhagen (2015)

I due progetti qui presentati – uno un teatro vero e proprio, l’altro una specie di dispositivo concettuale-teatrale – hanno alcuni caratteri comuni e nascono in un periodo ben definito, in cui ancora molto vivi erano i legami tra lo Iuav di Venezia e la scuola di Milano, negli intensi scambi del Dottorato di ricerca. Altri aspetti legano questi due progetti. Uno riguarda la loro contemporaneità (1993) e il fatto che essi sono stati ripresi a distanza di tempo, testimoniando una stabilità dell’idea stessa e di una persistenza. Infatti il progetto per il Sacro Monte di Arona ha avuto un antecedente due anni prima con un viaggio in compagnia di Ignazio Gardella, con appunti disegnati, mentre il progetto per Copenhagen è stato poi ripreso e approfondito con alcuni successivi disegni.
A Proposed Deep Tissue Imaging Scheme Based on Turbidity Suppression Optical Phase Conjugation (2008)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text E. J. McDowell, Z. Yaqoob, and C. Yang, "A Proposed Deep Tissue Imaging Scheme Based on Turbidity Suppression Optical Phase Conjugation," in Biomedical Optics, OSA Technical Digest (CD) (Optica Publishing Group, 2008), paper BSuE32. Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
Tumor-directed gene therapy in mice using a composite nonviral gene delivery system consisting of the piggyBac transposon and polyethylenimine (2009)

Our results show that the nonviral gene delivery system coupling PB transposon with PEI can be used as an efficient tool for gene therapy in ovarian cancer.
Selective Excitation of Trivalent Thulium via Intramolecular Energy Transfer (1962)

The results of luminescence studies of thulium trisbenzoylacetonate and thulium trisdibenzoylmethide are reported. Selective excitation of the 1G4 level of Tm3+ via energy transfer has been achieved. Emission from the 3F4 level of the ion has been observed, and all the groups of lines appearing in the visible and near infrared spectral regions have been assigned. A quenching mechanism involving vibrational coupling of the ion with the ligand is discussed. Ligand field splitting is reported.
Robust nonlinear canonical correlation analysis: application to seasonal climate forecasting (2008)

Abstract. Robust variants of nonlinear canonical correlation analysis (NLCCA) are introduced to improve performance on datasets with low signal-to-noise ratios, for example those encountered when making seasonal climate forecasts. The neural network model architecture of standard NLCCA is kept intact, but the cost functions used to set the model parameters are replaced with more robust variants. The Pearson product-moment correlation in the double-barreled network is replaced by the biweight midcorrelation, and the mean squared error (mse) in the inverse mapping networks can be replaced by the mean absolute error (mae). Robust variants of NLCCA are demonstrated on a synthetic dataset and are used to forecast sea surface temperatures in the tropical Pacific Ocean based on the sea level pressure field. Results suggest that adoption of the biweight midcorrelation can lead to improved performance, especially when a strong, common event exists in both predictor/predictand datasets. Replacing the mse by the mae leads to improved performance on the synthetic dataset, but not on the climate dataset except at the longest lead time, which suggests that the appropriate cost function for the inverse mapping networks is more problem dependent.
Development of Vibration Damping Steel Sheets for Automobile Oil Pans (1993)

<div class="htmlview paragraph">Recently, Vibration Damping Steel Sheet (VDSS) has been increasingly used for automobile parts such as dash boards and partition panels. VDSS is also used in oil pans, but the rquirements in this application are much stricter than those in other auto applications. The material must remain sound (show no wall break) and not delaminate during deep drawing press forming. In service, it must be oil tight at the welded drain nut and must maintain good adhesion characteristics at high temperatures of 60-120°C. The VDSS with a thermoplastic resin core used to date in oil pans provides poor baking durability and heat durability in high temperature service. For use in oil pans, the authors therefore developed a new VDSS material comprising two extra deep drawing class steel skin sheets (of ultra low carbon steel) and a thermosetting polyester resin core layer containing metal powder.</div> <div class="htmlview paragraph">The shear adhesion strength (SAS) of the thermoplastic resin VDSS was less than half the initial SAS after post-coating baking at 160∼200 °C, because the melting point of the resin was lower than the baking temperature. However, the SAS of the new thermosetting resin VDSS does not decrease from the initial SAS.</div> <div class="htmlview paragraph">It is generally thought that higher SAS values give better deep drawing press formability in VDSS, but the limit formability of VDSS decreased at SAS values higher than 17MPa, because higher SAS values create a higher press forming load. The optimum SAS of VDSS is 8.4∼14.5MPa for both types of resin.</div> <div class="htmlview paragraph">When thermosetting resin VDSS is welded, the time required for elimination of the resin layer under the welding electrode tip is 2∼3 times longer than that of thermoplastic resin VDSS in resistance welding and the projection welding used as a by-pass method. Thermosetting resin VDSS has the defects of ringed cut-off in resistance welding and an imperfect welding nugget in projection welding of the drain nut because of the long elimination time of the resin. The newly developed VDSS with a thermosetting resin core containing metal powder has the same weldability as thermoplastic resin VDSS. In addition, the frequency response function (inertance) of an oil pan of the newly developed VDSS was found to be 1OdB lower than that of an ordinary steel sheet.</div>
Packet Acquisition Performance of Frequency-Hop Spread-Spectrum Systems in Partial-Band Interference (2007)

For a frequency-hop (FH) spread-spectrum communication system, the packet error rate is dependent on both the performance of the error-correcting code and the ability of the receiver to detect and acquire timing of incoming packets. The performance of coding in FH systems in the presence of partial-band interference has been well studied, and it has been shown that turbo codes can work well in partial-band jamming. If the noise and interference are sufficient, however, the receiver will likely fail to correctly acquire the packet due to loss of the synchronization symbols, thus increasing the packet error rate. In this paper, we analyze packet acquisition for FH systems in the presence of partial-band jamming and determine optimal acquisition techniques. Simpler, near-optimal acquisition methods are also considered. We further consider the impact of imperfect acquisition along with established results on turbo error-correcting coding for FH systems to examine the overall packet error probability for partial-band interference channels.
Technology Development for High-Efficiency Solar Cells and Modules Using Thin (<80 um) Single-Crystal Silicon Wafers Produced by Epitaxy: June 11, 2011 - April 30, 2013 (2013)

Final technical progress report of Crystal Solar subcontract NEU-31-40054-01. The objective of this 18-month program was to demonstrate the viability of high-efficiency thin (less than 80 um) monocrystalline silicon (Si) solar cells and modules with a low-cost epitaxial growth process.
Lessons Learned From Refractured Wells: Using Data to Develop an Engineered Approach to Rejuvenation (2016)

Abstract During the life time of a production well, sometimes it is inevitable that remediation methods have to be adopted for different reasons. Hydraulic fracturing is one of the common ways to boost production by either reopening existing fractures or creating new fractures. Considering the large number of unconventional wells that have experienced sharp production declines and the current tight budget for drilling new wells, refracturing will certainly become an important technology worthy of more investigation. This paper reviews the production and completion data for a number of wells that have been re-stimulated by hydraulic fracturing since 2011. Wells with enough production data were selected to evaluate their production responses by comparing both the cumulative production in a fixed period of time before and after the re-stimulation and by evaluating incremental production increase normalized by amount of proppant used to restimulate the well. Wells involved in the study had been producing from various formations for different periods of time before restimulation. In addition to the analysis above, this study went a step further by attempting to understand the reasons behind inconsistent results after refracturing: high performance of some wells and the failure of the others to meet production expectations. Two re-completion effectiveness indexes are defined in the paper based on production performance before and after restimulation and on re-completion job size. Overall, the study shows mixed results. Although some formations demonstrated much more favorable response than others, it was also possible for wells producing from the same formation to have extremely different responses to the restimulation. Candidates for restimulation should be evaluated carefully, to include their level of depletion, the petrophysical and geomechanical properties of the rock, and previous well completion and stimulation. These data and measurements are required to engineer an appropriate refracturing or recompletion design. The study also shows very promising results from refracturing some long-producing conventional wells, which indicate opportunities to rejuvenate old wells with hydraulic fracturing. This study provides an overview of the lessons learned from examination of a limited data set of hydraulic fracturing restimulations done in the past five years.