gebhart/patrepeval huggingface dataset:
Real-time large scale near-duplicate web video retrieval (2010)

Near-duplicate video retrieval is becoming more and more important with the exponential growth of the Web. Though various approaches have been proposed to address this problem, they are mainly focusing on the retrieval accuracy while infeasible to query on Web scale video database in real time. This paper proposes a novel method to address the efficiency and scalability issues for near-duplicate We video retrieval. We introduce a compact spatiotemporal feature to represent videos and construct an efficient data structure to index the feature to achieve real-time retrieving performance. This novel feature leverages relative gray-level intensity distribution within a frame and temporal structure of videos along frame sequence. The new index structure is proposed based on inverted file to allow for fast histogram intersection computation between videos. To demonstrate the effectiveness and efficiency of the proposed methods we evaluate its performance on an open Web video data set containing about 10K videos and compare it with four existing methods in terms of precision and time complexity. We also test our method on a data set containing about 50K videos and 11M key-frames. It takes on average 17ms to execute a query against the whole 50K Web video data set.
Crystalline Polyester for High Durability (2004)

In recent years, from the viewpoint of saving energy, it is requested that the toner can be fused at lower energy. In NIP19, it was reported that the toner containing crystalline polyester exhibited excellent fusing ability. And the melting point of crystalline polyester is effective on fusing ability.On the other hand, the speed of machine system is increasing year by year. So high durability toner is requested as well. However, it was very difficult to satisfy high durability and excellent fusing ability at the same time.In this study, we developed high molecular weight crystalline polyester. Durability of the toner containing crystalline polyester is improved by increasing molecular weight of crystalline polyester. And the melting point of crystalline polyester is not changed even if its molecular weight is higher. So its good fusing ability can be kept. Furthermore, high molecular weight crystalline polyester shows high elasticity above its melting point. Because of that, anti-hot offset property of the toner is also improved.
Potent Triazolopyridine Myeloperoxidase Inhibitors (2018)

Myeloperoxidase (MPO) generates reactive oxygen species that potentially contribute to many chronic inflammatory diseases. A recently reported triazolopyrimidine MPO inhibitor was optimized to improve acid stability and remove methyl guanine methyl transferase (MGMT) activity. Multiple synthetic routes were explored that allowed rapid optimization of a key benzyl ether side chain. Crystal structures of inhibitors bound to the MPO active site demonstrated alternate binding modes and guided rational design of MPO inhibitors. Thioether <b>36</b> showed significant inhibition of MPO activity in an acute mouse inflammation model after oral dosing.
Observation of resonant enhancement of photoinduced second-harmonic generation in Tm-doped aluminosilicate glass fibers (1993)

We report a 10(3) increase in efficiency of second-harmonic generation in Tm(3+)-doped aluminosilicate glass fibers when the wavelength of the fundamental beam is tuned to the maximum of the (3)H(6) ? (3)F(4) absorption of Tm(3+) at 785 nm. This result shows the role of resonance enhancement in the nonlinear optical process that is responsible for the formation of the X((2)) grating.
ChemInform Abstract: Targeted Fluorination with the Fluoride Ion by Manganese‐Catalyzed Decarboxylation. (2015)

Abstract The first catalytic decarboxylative fluorination reaction based on the nucleophilic fluoride ion is described.
Hand-held, dynamic indentation system for measuring myocardial transverse stiffness. (1997)

Primary muscle abnormalities and/or alterations in regional loading may be critical in myocardial infarct expansion and remodeling, cardiomyopathy progression, and arrhythmia generation. To differentiate muscle abnormalities from loading abnormalities, an estimation of regional wall stress is needed. Researchers have previously relied on geometric models and finite element analysis to estimate wall stress, but these estimations have not been validated. It has been shown that the transverse stiffness (the ratio of indentation stress to indentation strain during transverse indentations) of a cardiac muscle can be used to estimate the myocardial wall stress. The authors designed and tested a hand-held dynamic indentation system that can determine the regional transverse stiffness of an intact heart in as little as 15 milliseconds, allowing multiple estimations of wall stress over a single contraction cycle. The sensor was validated with a finite-element analysis of the indentation process, as well as with direct measurements on isolated heart muscle, and on soft, nonbiologic materials. The validations confirmed that the dynamic indentation system does accurately estimate myocardial wall stress. This regional-wall-stress sensor could help to enhance the understanding of cardiac pathophysiology, guide therapy, and assist surgeons in planning cardiac surgeries.
Ceramic Strain Gages for Use at Temperatures up to 1500 Celsius (2003)

Indium-tin-oxide (ITO) thin film strain gages were successfully demonstrated at temperatures beyond 1500 C. High temperature static strain tests revealed that the piezoresistive response and electrical stability of the ceramic sensors depended on the thickness of the ITO films comprising the active strain elements. When 2.5 microns-thick ITO films were employed as the active strain elements, the piezoresistive response became unstable at temperatures above 1225 C. In contrast to this, ceramic sensors prepared with 5 microns-thick ITO were stable beyond 1430 C and sensors prepared with 8 microns-thick ITO survived more than 20 hr of operation at 1481 C. Very thick (10 microns) ITo strain gages were extremely stable and responsive at 1528 C. ESCA depth profiles confirmed that an interfacial reaction between the ITO strain gage and alumina substrate was responsible for the high temperature electrical stability observed. Similar improvements in high temperature stability were achieved by doping the active ITO strain elements with aluminum. Several Sic-Sic CMC constant strain beams were instrumented with ITO strain gages and delivered to NASA for testing. Due to the extreme surface roughness of the CMC substrates, new lithography techniques and surface preparation methods were developed. These techniques relied heavily on a combination of Sic and A12O3 cement layers to provide the necessary surface finish for efficient pattern transfer. Micro-contact printing using soft lithography and PDMS stamps was also used to successfully transfer the thin film strain gage patterns to the resist coated CMC substrates. This latter approach has considerable potential for transferring the thin film strain gage patterns to the extremely rough surfaces associated with the CMC's.
Transient Control of a Hydraulic Free Piston Engine (2013)

The free piston engine (FPE) is a type of internal combustion engine (ICE) with no crankshaft, so that its piston motion is no longer constrained by mechanical linkages. The FPE has a high potential in terms of energy saving given its simple structure, high modularity and high efficiency. One of the technical barriers that prevents the wide spread of the FPE technology, is the lack of precise piston motion control. Previously, a robust repetitive controller is designed and implemented to form a virtual crankshaft that would provide a precise and stable engine operation. The experimental data of engine motoring tests with virtual crankshaft demonstrates the effectiveness of the controller. However, the presence of a transient period after a single combustion event prevents the engine from continuous firing. This paper presents a modified control scheme, which utilizes a reference and control signal shifting technique to modify the tracking error and the control signal to reduce the transient period.
Noise Adaptive Training for Robust Automatic Speech Recognition (2010)

In traditional methods for noise robust automatic speech recognition, the acoustic models are typically trained using clean speech or using multi-condition data that is processed by the same feature enhancement algorithm expected to be used in decoding. In this paper, we propose a noise adaptive training (NAT) algorithm that can be applied to all training data that normalizes the environmental distortion as part of the model training. In contrast to feature enhancement methods, NAT estimates the underlying “pseudo-clean” model parameters directly without relying on point estimates of the clean speech features as an intermediate step. The pseudo-clean model parameters learned with NAT are later used with vector Taylor series (VTS) model adaptation for decoding noisy utterances at test time. Experiments performed on the Aurora 2 and Aurora 3 tasks demonstrate that the proposed NAT method obtain relative improvements of 18.83% and 32.02%, respectively, over VTS model adaptation.
Fluoropolymers for 157 nm Lithography: Performance of Single Layer Resists. (2002)

Implementation of 157nm lithography using single-layer photoresists will require the development of resists with sufficiently high transparency in the vacuum ultraviolet to permit high resolution imaging using films approximately 200nm thick. One of the more promising approaches to this objective involves the use of fluoropolymers as the base resins in the photoresists, since fluorination decreases the optical absorbance at 157nm. Here we describe the optical properties and imaging performance of two fluoropolymer systems. One system is based upon tetrafluoroethylene copolymers, the other upon vinyl addition copolymers. Both systems incorporate norbornene derivatives to provide aqueous base (developer) solubility and plasma etch resistance.
Purification and characterization of a kinase specific for the serine- and arginine-rich pre-mRNA splicing factors. (1994)

Members of the SR family of pre-mRNA splicing factors are phosphoproteins that share a phosphoepitope specifically recognized by monoclonal antibody (mAb) 104. Recent studies have indicated that phosphorylation may regulate the activity and the intracellular localization of these splicing factors. Here, we report the purification and kinetic properties of SR protein kinase 1 (SRPK1), a kinase specific for SR family members. We demonstrate that the kinase specifically recognizes the SR domain, which contains serine/arginine repeats. Previous studies have shown that dephosphorylated SR proteins did not react with mAb 104 and migrated faster in SDS gels than SR proteins from mammalian cells. We show that SRPK1 restores both mobility and mAB 104 reactivity to a SR protein SF2/ASF (splicing factor 2/alternative splicing factor) produced in bacteria, suggesting that SRPK1 is responsible for the generation of the mAb 104-specific phosphoepitope in vivo. Finally, we have correlated the effects of mutagenesis in the SR domain of SF2/ASF on splicing with those on phosphorylation of the protein by SRPK1, suggesting that phosphorylation of SR proteins is required for splicing.
Authorization System in Open Networks based on Attribute Certificates : Towards an ICT Enabled Society (2003)

This paper describes a security system for authorization in open networks. Authorization means authority to access certain resources, to perform certain operations, or to use certain system functions. In this paper the authorization system is based on use of attribute certificates. An attribute certificate is a signed object containing authorization attributes of a user. Before checking whether a user is authorized to perform an action or to access an object, the identity of the user must be verified. The identity verification system is based on public key certificates. We separate authorization system from authentication system because the same authority does not always establish authorization and authentication information. However these two systems must be combined and that is done by including the serial number of the user’s public key certificate as a field in the user’s attribute certificate, which carries authorization information. The topology of the authorization system comprises authorization authority servers issuing attribute certificates to users, application clients handling those certificates, and application servers verifying user access rights based on attribute certificates. Furthermore, all these components are themselves certified by standard PKI certification authorities, thus supporting mutual authentication and cross–domain scaling.
Effects of Dietary D‐Psicose on Diurnal Variation in Plasma Glucose and Insulin Concentrations of Rats (2006)

D‐Psicose, a C‐3 epimer of D‐fructose, is a “rare sugar” present in small quantities in commercial carbohydrate complex or agricultural products. In this study, we investigated the effects of supplemental D‐psicose in diet on diurnal variation in plasma glucose and insulin concentrations in rats. Forty‐eight male Wistar rats (4‐week‐old) were divided into four groups. Each group except the Control group was fed a diet with of 5% D‐fructose, D‐psicose, or psico‐rare sugar (3:1 mixture of D‐fructose and D‐psicose) for 8 weeks. Plasma glucose levels were lower and plasma insulin levels were higher at all times of day in the Psicose and Psico‐rare sugar groups than in the Control and Fructose groups. Final body weight and weight gain were significantly lower in the Psicose group than in the Control and Fructose groups. Energy intake, energy efficiency, abdominal adipose tissue weight and carcass fat content were lower in the Psicose group than in the other groups. Liver glycogen content, both before and after meals were higher in the Psicose group than in the Control and Fructose groups. These results suggest that supplemental D‐psicose can lower plasma glucose levels and reduce body fat accumulation. Thus, D‐psicose may be useful in preventing obesity or postprandial hyperglycemia in diabetic patients.
Processing and properties of Ag-clad Bi-2223 tapes (1993)

We prepared partially reacted, polyphase, Pb-doped Bi-Sr-Ca-Cu-O (2223) powders by solid-state and wet-chemical routes. The calcined powders were characterized by thermal analysis, x-ray diffraction, and scanning electron microscopy. We then fabricated long lengths of flexible Ag-clad 2223 tapes by the powder-in-tube technique. Multifilamentary conductors have been prepared by stacking circular single-core Ag-sheathed superconductor rods into larger Ag tube and then drawing and rolling the tube to final size. The tapes were given appropriate heat treatment and the growth of the 2223 phase at each step of the heat treatment was studied. At 4.2 and 27 K, improved process conditions yielded transport critical current density (J{sub c}) values > 10{sup 5} A/cm{sup 2} at zero field; at 77 K, J{sub c} exceeded 4 {times} 10{sup 4} A/cm{sup 2}. Using a two-step rolling with an intermediate heat treatment, we have fabricated conductors {approx}70 m long. The J{sub c} value of these long conductors is {approx}2 {times} 10{sup 4} A/cm{sup 2} at 77 K in self field. Superconducting pancake coils were fabricated from the long-length tapes by the wind-and-react technique.
Zirconium and Hafnium Separation, Part 1. Liquid/Liquid Extraction in Hydrochloric Acid Aqueous Solution with Aliquat 336 (2006)

Abstract The extraction of zirconium and hafnium from aqueous HCl solutions by means of Aliquat 336 in organic diluents was systematically studied. The following three aspects were discussed: the extraction dependence on HCl, the Aliquat 336 concentrations, and the nature of diluents. Both of the metals were stripped with deionized water and the influence of phase ratio on the efficiency of the stripping has been investigated. The stoichiometry of the extracted Zr and Hf species from single metal ion were studied and a possible extraction mechanism for the Zr‐Hf mixture is discussed in the light of the results obtained. Keywords: ZirconiumhafniumHCIAliquat 336 concentrationsdiluent nature Acknowledgements This work was supported by Framatome through a Ph.D. grant to L.P. Zr and Hf samples from Cezus are gratefully acknowledged.
A novel assay for the detection of anti-human platelet antigen antibodies (HPA-1a) based on peptide aptamer technology (2011)

This assay could help define a standard for the quantitation of anti-HPA antibodies. This report also demonstrates that peptide aptamers can potentially detect a variety of biomarkers in body fluids; this is of particular interest for diagnostic purposes.
PWM zero-voltage switching boost-derived converters with output isolation (1996)

In this paper, the basic operations and steady-state analysis for three modified boost-derived power converter topologies are presented. Unlike the conventional boost topology, these power converters provide electrical isolation and zero-voltage switching, while having identical component stresses as those in the conventional boost power converters. Zero-voltage switching and proper transformer-core resetting are achieved from the resonance that occurs between the parasitic capacitance of the power switch and the transformer magnetizing inductance. By introducing a lossless clamping circuit, the voltage stresses across the switching devices are limited to the reflected output voltage to the primary side.
Preparation and Thermal Expansion Behavior of Pollucite Powders by Sol-Gel Processing (1991)

Pollucite (Cs2O⋅Al2O3⋅4SiO2) powders were prepared from a combination of Al2O3 sol, SiO2 sol and CsNO3 starting materials by sol-gel processing, and a stable region of single phase pollucite was investigated. The pollucite powders of single phase were synthesized when Cs2O:SiO2 and Al2O3:SiO2 molar ratios were 0.91-1.02:4 and 0.96-2.38:4, respectively, by standerdizing SiO2 molar ratio. The lattice parameters at room temperature were affected mainly by the Cs2O/SiO2 ratio. It was confirmed by a high temperature X-ray diffractometry that the thermal expansion for the pollucite powders is greatly affected by the change of compositions: The thermal expansion coefficient decreased with decreasing Cs2O/SiO2 ratio from room temperature to 200°C, and increased with increasing Al2O3/SiO2 ratio above 600°C. An increasing tendency of the latter has turned out to be caused by a slight amount of α-Al2O3 formed in the course of calcination. However, such behavior was not observed at the Cs2O/Al2O3 ratio of less than 1.
Post‐polymerization crosslinked polyurethane shape memory polymers (2011)

Novel urethane shape-memory polymers (SMPs) of significant industrial relevance have been synthesized and characterized. Chemically crosslinked SMPs have traditionally been made in a one-step polymerization of monomers and crosslinking agents. However, these new post-polymerization crosslinked SMPs can be processed into complex shapes by thermoplastic manufacturing methods and later crosslinked by heat exposure or by electron beam irradiation. Several series of linear, olefinic urethane polymers were made from 2-butene-1,4-diol, other saturated diols, and various aliphatic diisocyanates. These thermoplastics were melt-processed into desired geometries and thermally crosslinked at 200°C or radiation crosslinked at 50 kGy. The SMPs were characterized by solvent swelling and extraction, differential scanning calorimetry (DSC), dynamic mechanical analysis (DMA), tensile testing, and qualitative shape-recovery analysis. Swelling and DMA results provided concrete evidence of chemical crosslinking, and further characterization revealed that the urethanes had outstanding mechanical properties. Key properties include tailorable transitions between 25 and 80°C, tailorable rubbery moduli between 0.2 and 4.2 MPa, recoverable strains approaching 100%, failure strains of over 500% at T(g), and qualitative shape-recovery times of less than 12 seconds at body temperature (37°C). Because of its outstanding thermo-mechanical properties, one polyurethane was selected for implementation in the design of a complex medical device. These post-polymerization crosslinked urethane SMPs are an industrially relevant class of highly processable shape-memory materials.
Single-chip surface micromachined integrated gyroscope with 50°/h Allan deviation (2002)

The design principles of a mass-produced surface micromachined gyroscope are described. The device is integrated on a single 3 mm/spl times/3 mm chip with a 3-/spl mu/m BiCMOS process. It has a 4-/spl mu/m-thick polysilicon structure, 5-V 6-mA supply, 12.5-mV//spl deg//S sensitivity, 10 000:1 dynamic range, 30 000-gee shock survival, and -55/spl deg/C to +85/spl deg/C operating temperature.
A 335µW −72dBm receiver for FSK back-channel embedded in 5.8GHz Wi-Fi OFDM packets (2017)

An ULP back-channel receiver is presented that demodulates binary a FSK back-channel signal embedded in 5.8GHz IEEE 802.11a Wi-Fi OFDM packets. The architecture of the back-channel receiver employs a two-step down-conversion where the first mixing stage downconverts using the 3 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">rd</sup> harmonic of the LO for power efficiency. The LP-65nm CMOS receiver consumes 335μW with a sensitivity of -72dBm at a BER of 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">-3</sup> and data-rate of 31.25kb/s. The radio uses a balun and a 250kHz reference crystal as external components. The receiver uses a 1V supply voltage for analog blocks, and 0.85V for digital blocks including the LO and FLL.
549 Three New Cultivars of Flowering Dogwood Resistant to Powdery Mildew (2000)

Powdery mildew ( Microsphaera pulchra ) of flowering dogwood ( Cornus florida L.) has become a significant problem of trees in nursery production as well as in the landscapes and forests of the eastern United States. The disease significantly reduces growth and berry production by older established trees and may contribute to the inability of younger trees (liners) in production to survive winter dormancy. Disease resistance in named cultivars is limited to partial resistance found in `Cherokee Brave'—all other cultivars are extremely susceptible. Until now, the only disease control measure was to establish an expensive, labor-intensive, preventive fungicide program. We examined >22,000 seedlings and identified 20 that were extremely resistant to powdery mildew. Three trees with white bracts were selected from the 20 and released as patent-pending cultivars. `Karen's Appalachian Blush' has long, non-overlapping, pink fringed bracts with a delicate appearance. `Kay's Appalachian Mist' has creamy white, slightly overlapping bracts with deeply pigmented clefts. `Jean's Appalachian Snow' has large, strongly overlapping bracts with non-pigmented clefts. The three powdery mildew-resistant cultivars will be entered into an existing breeding program with `Appalachian Spring', a cultivar released by the Tennessee Agriculture Experiment Station and resistant to dogwood anthracnose, in an attempt to produce trees that are resistant to both diseases.
An intracellular protein delivery platform based on glutathione-responsive protein nanocapsules (2016)

An efficient strategy for the intracellular delivery of proteins was developed based on assembling proteins with a self-crosslinkable polymer. Such a disulfide-crosslinking structure enhances the stability of the protein-polymer assembly, and also allows effective dissociation of the assembly in response to glutathione, which allows effective delivery of various proteins with high intracellular bioactivity.
ChemInform Abstract: CONVERSION OF ERGOLINES TO HEXAHYDRO‐ AND OCTAHYDROBENZO(F)QUINOLINES (DEPYRROLOERGOLINES) (1980)

Abstract Ergonovin (Ia), Agroclavin (Ib) und Pergolidmesylat (Ic) werden zu den Ketoformamiden (II) gespalten, die über die Aminoketone (III) in die Ketone (IV) umgewandelt werden.