gebhart/patrepeval huggingface dataset:
Relationship between the Enzymatic Browning and Phenylalanine Ammonia-lyase Activity of Cut Lettuce, and the Prevention of Browning by Inhibitors of Polyphenol Biosynthesis (2001)

Cut lettuce stored at 4 degrees C gradually turned brown on the cut section after several days of storage. Three factors for enzymatic browning, the polyphenol content, polyphenol oxidase activity, and phenylalanine ammonia-lyase (PAL) activity, were examined during the cold storage of cut lettuce. A relationship between the browning and PAL activity was apparent. We tried to prevent this browning by using the two enzyme inhibitors, 2-aminoindane-2-phosphonic acid (AIP), an inhibitor of the phenylpropanoid pathway, and glyphosate, an inhibitor of the shikimate pathway. AIP and glyphosate significantly inhibited the browning of cut lettuce. The polyphenol content and PAL activity were both reduced by the treatment with AIP. These results show that regulating the biosynthesis of polyphenols is essential to prevent the browning of cut lettuce.
The Temperature Dependence of Gamma-Ray Responses of YAG:Ce Ceramic Scintillators (2006)

The temperature dependence (from -20 to +20 degrees C) of gamma-ray irradiated light outputs, energy resolutions, and decay time profiles of three YAG:Ce poly-ceramic scintillators are studied. The Ce concentrations are 0.5, 0.05, and 0.005 mol%. The relative light yield of the YAG:Ce with 0.5 mol% with a 2 mus shaping time was measured as 1 : 1.08 : 1.14 at +20, 0, and -20 degrees C, respectively, including the temperature dependence of the phototube (-0.2%/degree). The energy resolution stays almost constant at 7.2% for 662 keV gamma-rays. The ceramic with 0.05 mol% shows the almost same properties, while the light yield of that with 0.005 mol% is 2-4 times lower (hence the energy resolution becomes 14-19%). All the scintillators exhibit good linearities within ~1% between the light output and the irradiated gamma-ray energy from 59.5 keV to 662 keV. The decay time constants of the dominant decay components are about 80 ns and 300 ns at +20 degrees C. As the temperature increases from -20 to +20 degrees C, the effective decay of all the ceramics becomes faster, because the decay time constants and fractions of the slower components shorten and decrease, respectively. This result suggests that carriers which are captured in shallow traps before transferring excitation to Ce ions can escape the traps more easily at higher temperatures. Considering the decrease of the total light yield toward higher temperatures, it is thought that thermal quenching starts to dominate the temperature dependence of the ceramic YAG:Ce around the room temperature. The 0.5 mol% scintillator shows a lower quenching energy than the 0.05 mol% one. This can be explained in terms of self absorption of Ce emission
Prologue An “N of 1” (2009)

Extract Speaking at a conference on teacher action research, the renowned author and early childhood educator Vivian Paley recounted the time a professor of education asked her why anyone should listen to what just one school teacher had to say about just one group of children. Paley confided in the audience that she thought the question a bit rude, but she replied politely, "Because it is the only way to find out what one teacher thinks." Whether the professor found this a persuasive answer we don't know from Paley's story, but it was clear from the sighs of recognition that the teachers in the audience did. I can think of several educational contexts in which the education professor's question about the generalizability of any teacher's thoughts on classroom life would be most warranted. The problems educators are asked to solve are simply too many and too complex for one teacher to have all the answers. Yet in this book I focus on a pedagogical model drawn from the work of one educator—Vivian Paley. I do not pretend to suggest that Paley's story provides a definitive response to all that ails early childhood education today. I do, however, assume that hers is a highly valuable response. The fact is the need for generalizability in education—a cry that has been with us in one form or another since schools began—does not obviate the need for models, or for giants. From Plato to Dewey to the national board certification movement, the investment in the teacher/sage is a long, valued, and highly instructive tradition in both philosophical and educational thought. This is because an "n of 1," or a single sample, is sometimes the only recourse to solving one of the most investigated, but stubbornly recalcitrant problems in school reform: how to find our way home from theory to practice. I leave it to the reader to decide how well I have made the case for Paley in this regard. My assumption, however, is that the expert teacher or the model teacher, as I suggest Paley is, does not leave us at the schoolhouse door, as theory sometimes can, but provides us with road signs inside the classroom, which is where we most want to be. We resist the composites and avatars of classroom teachers found in traditional textbooks or on the Web because we don't recognize the route to their success. The teacher's story we hunger for involves "personal, practical knowledge" (Clandinin and Connelly 2000). It is grounded in reality and risk, and provides us with analysis based on true experimentation and experience. It comprises real families and actions in real time, and it welcomes admissions of failure.
Robust fingerprint authentication using local structural similarity (2002)

Fingerprint matching is challenging as the matcher has to minimize two competing error rates: the False Accept Rate and the False Reject Rate. We propose a novel, efficient, accurate and distortion-tolerant fingerprint authentication technique based on graph representation. Using the fingerprint minutiae features, a labeled, and weighted graph of minutiae is constructed for both the query fingerprint and the reference fingerprint. In the first phase, we obtain a minimum set of matched node pairs by matching their neighborhood structures. In the second phase, we include more pairs in the match by comparing distances with respect to matched pairs obtained in first phase. An optional third phase, extending the neighborhood around each feature, is entered if we cannot arrive at a decision based on the analysis in first two phases. The proposed algorithm has been tested with excellent results on a large private livescan database obtained with optical scanners.
Several models and applications for deep learning (2017)

As a popular technology in recent years, deep learning has attracted widespread attention from academic research to industrial application. In this paper, we briefly summarize the important concepts and decisive factors in the development of deep learning. Then the representative contemporary algorithms are mentioned. It summarizes the 6 main deep learning models of the current mainstream academic research and expounds their principles, illustrating the concepts and characteristics of different kinds of neural network structure models. Certain industrial applications, including speech recognition, image recognition and artificial intelligence, are presented to analyze the future trends and the main challenges.
An improved background noise coding mode for variable rate speech coders (2003)

In this paper, we present a novel background noise coding scheme for variable rate speech coders. Existing approaches to noise coding at very low bit rates (i.e. below 1 kbps) fail to faithfully reproduce background noise resulting in a degradation of the overall perceptual quality. In our approach, classification of the noise type is used to select the type of excitation to be used at the receiver. To illustrate the benefits of our scheme, we have modified the noise coding mode of the CDMA enhanced variable rate codec (EVRC) to include the proposed class-dependent noise excitation model. Evaluation tests have shown that we have improved the overall quality with the proposed noise coding scheme without an increase in bit rate.
Evaluation of erbia as a burnable absorber in a 24-month, low-leakage C-E core (1988)

The trends of increased cycle length (18 months or longer) and improved fuel utilization (low leakage) have resulted in the need to use burnable absorbers extensively in pressurized water reactor reload cores. The movement toward 24-month cycles has increased that need, presenting significant challenges with regard to moderator temperature coefficient (MTC) and power distribution control, thermal margin, reactivity residuals, and burnout rates. This paper presents an evaluation of the use of erbia (Er{sub 2}O{sub 3}) as an alternative burnable absorber. Pin peaking for the erbia design along with that for a standard B{sub 4}C discrete burnable poison design is shown. This comparison shows that the thermal margin gain for erbia is {approx}10%. Some of this improvement results from the virtual nondisplacement of fuel; the bulk f the improvement comes from the very low local power peaking that results from the employment of both erbia and enrichment zoning. The erbia and B{sub 4}C designs had essentially the same MTC, although the erbia design had a significantly higher soluble boron level.
Titanium dioxide as photocatalyses to create self cleaning concrete and improve indoor air quality (2011)

Air inside buildings can be more polluted than outdoor because there are various sources of pollution in some big cities. This paper presents the results of a study on the efficiency of contributing air cleaning agents such as Titanium dioxide (TiO2) into the technique of producing concrete composite panels, using local waste materials for solving the problem of carbon dioxide (CO2) in indoor air buildings. Factors which would have an effect on the performance of the panel were studied, including the porosity of panel, different types of waste materials and types percentage of TiO2 used within the mix design. The degradation process under laboratory conditions was studied using chemiluminescence analysis method for measuring the performance of photocatalytic active concrete products. The results show that the photo degradation of CO2 is related to the porosity of the sample; when the porosity of sample was increased, the CO2 had removal ability.

	 

	Key words: Concrete composite panel, indoor air quality, titanium dioxide, photocatalyses, degradation, carbon dioxide.
An effective low complexity binaural beamforming algorithm for hearing aids (2015)

In this paper, we propose a low complexity beamforming algorithm for binaural hearing aids that achieves a high degree of noise suppression without causing significant speech distortion. Specifically, we incorporate a priori approximate spatial information in the formulation and develop several effective techniques to reduce the communication overhead. For the resulting quadratically constrained beamforming problem, we propose a low complexity algorithm based on the Alternating Direction Method of Multipliers (ADMM) method. This new approach is shown to be computationally much more efficient than the previously proposed binaural beamforming algorithms. Through experiments on the real-world recording, the effectiveness of the binaural hearing aid design and the corresponding low complexity implementation are validated.
High-Yield Synthesis of Alkoxyamine Initiators Carrying a Functional Group by Reaction of Ethylbenzenes with Di-<i>tert</i>-butyl Diperoxalate in the Presence of Nitroxides (1998)

ADVERTISEMENT RETURN TO ISSUEPREVCommunication to the...Communication to the EditorNEXTHigh-Yield Synthesis of Alkoxyamine Initiators Carrying a Functional Group by Reaction of Ethylbenzenes with Di-tert-butyl Diperoxalate in the Presence of NitroxidesYozo Miura, Kenichi Hirota, Hiroaki Moto, and Bunichiro YamadaView Author Information Department of Applied Chemistry, Faculty of Engineering, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan Cite this: Macromolecules 1998, 31, 14, 4659–4661Publication Date (Web):June 24, 1998Publication History Received9 March 1998Revised29 April 1998Published online24 June 1998Published inissue 1 July 1998https://pubs.acs.org/doi/10.1021/ma9803685https://doi.org/10.1021/ma9803685rapid-communicationACS PublicationsCopyright © 1998 American Chemical SocietyRequest reuse permissionsArticle Views291Altmetric-Citations30LEARN 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 SUBJECTS:Aromatic compounds,Functionalization,Hydrocarbons,Mixtures,Radical polymerization Get e-Alerts
High Areal Capacity Si/LiCoO<sub>2</sub> Batteries from Electrospun Composite Fiber Mats (2017)

Freestanding nanofiber mat Li-ion battery anodes containing Si nanoparticles, carbon black, and poly(acrylic acid) (Si/C/PAA) are prepared using electrospinning. The mats are compacted to a high fiber volume fraction (≈0.85), and interfiber contacts are welded by exposing the mat to methanol vapor. A compacted+welded fiber mat anode containing 40 wt % Si exhibits high capacities of 1484 mA h g<sup>-1</sup> (3500 mA h g-1Si ) at 0.1 C and 489 mA h g<sup>-1</sup> at 1 C and good cycling stability (e.g., 73 % capacity retention over 50 cycles). Post-mortem analysis of the fiber mats shows that the overall electrode structure is preserved during cycling. Whereas many nanostructured Si anodes are hindered by their low active material loadings and densities, thick, densely packed Si/C/PAA fiber mat anodes reported here have high areal and volumetric capacities (e.g., 4.5 mA h cm<sup>-2</sup> and 750 mA h cm<sup>-3</sup> , respectively). A full cell containing an electrospun Si/C/PAA anode and electrospun LiCoO<sub>2</sub> -based cathode has a high specific energy density of 270 Wh kg<sup>-1</sup> . The excellent performance of the electrospun Si/C/PAA fiber mat anodes is attributed to the: i) PAA binder, which interacts with the SiO<sub>x</sub> surface of Si nanoparticles and ii) high material loading, high fiber volume fraction, and welded interfiber contacts of the electrospun mats.
Magnetic field SLAM exploration: Frequency domain Gaussian processes and informative route planning (2015)

In this paper, we consider magnetic field SLAM exploration using a mobile robot with a magnetometer and wheel encoders. We propose computationally feasible solutions to model magnetic fields using frequency domain Gaussian processes. In addition, we propose a path planning algorithm to efficiently collect a given level of accuracy for magnetic field models. The path planning is based on partition of shortest paths into blocks with similar information content and implementing depth-first search among these blocks. Finally, we propose an exploration-exploitation algorithm enabling real-world mobile robot SLAM exploration solutions with motion uncertainties. SLAM is presented with Rao-Blackwellized particle filters where robot's path hypothesis are presented with particles together with a separate magnetic field model for each particle. We conducted SLAM exploration experiments using real magnetic field data in a simulated environment. Simulation parameters were tuned to approximate ICreate robot's motion uncertainties and MicroMag3 magnetometer's sensor noise, together with the robot's inclination uncertainties. Simulations demonstrated for the first time that we were able to build actual magnetic field SLAM exploration. The results indicate that, with frequency domain Gaussian processes, we are able to obtain desirable convergence of path distribution, although, with the selected particle filter SLAM approach, the localization accuracy was not desirable.
High-performance ultraviolet photodetectors based on solution-grown ZnS nanobelts sandwiched between graphene layers (2015)

Ultraviolet (UV) light photodetectors constructed from solely inorganic semiconductors still remain unsatisfactory because of their low electrical performances. To overcome this limitation, the hybridization is one of the key approaches that have been recently adopted to enhance the photocurrent. High-performance UV photodetectors showing stable on-off switching and excellent spectral selectivity have been fabricated based on the hybrid structure of solution-grown ZnS nanobelts and CVD-grown graphene. Sandwiched structures and multilayer stacking strategies have been applied to expand effective junction between graphene and photoactive ZnS nanobelts. A multiply sandwich-structured photodetector of graphene/ZnS has shown a photocurrent of 0.115 mA under illumination of 1.2 mWcm(-2) in air at a bias of 1.0 V, which is higher 10(7) times than literature values. The multiple-sandwich structure of UV-light sensors with graphene having high conductivity, flexibility, and impermeability is suggested to be beneficial for the facile fabrication of UV photodetectors with extremely efficient performances.
<i>Donnerstag aus Licht</i>. Karlheinz Stockhausen (1984)

Journal Article Donnerstag aus Licht. Karlheinz Stockhausen Get access Robert P. Morgan Robert P. Morgan Search for other works by this author on: Oxford Academic Google Scholar The Opera Quarterly, Volume 2, Issue 4, Winter 1984, Pages 126–128, https://doi.org/10.1093/oq/2.4.126 Published: 01 January 1984
An Expedient Route to Indole-3-acetic Acid Derivatives (1994)

An expedient synthesis of indole-3-acetic acid derivatives has been developed by employing the Heck reaction between 2-iodoaniline derivatives and 2,5-dihydro-dimethoxyfuran as the key step.
Electrolyte Solutions Improve Nanoparticle Transfer from Oil to Water (2010)

Many techniques to transfer NPs from the oil phase into the water phase have been developed, but all have limitations that remain to be addressed, specifically low transfer yields and partial NP aggregation. One of the transfer processes involves emulsifying an oil suspension of NPs in water with surfactants, followed by evaporation of the oil to produce water suspensions of surfactant-encapsulated NPs. We show here that using salt solutions instead of deionized water significantly improves this emulsion-based transfer process. With oleate-coated CdSe quantum dots as a model NP system, hexane as the oil phase, sodium bis(2-ethylhexyl) sulfosuccinate (AOT) as the emulsifying surfactant, and NaCl solution as the water phase, the resultant aqueous suspensions exhibit months-long photoluminescence stability, near 100% phase-transfer yield, and nonaggregation. These benefits are attributed to a more laterally packed AOT layer surrounding the NP, as supported by zeta-potential measurements, surface-charge calculations, thermogravimetry, and Nile Red fluorescence analysis. The new phase-transfer method is general for a variety of NP, surfactant, and salt types.
Dideoxynucleoside resistance emerges with prolonged zidovudine monotherapy. The RV43 Study Group (1994)

Human immunodeficiency virus type 1 (HIV-1) isolates resistant to zidovudine (ZDV) have previously been demonstrated to exhibit in vitro cross-resistance to other similar dideoxynucleoside agents which contain a 3'-azido group. However, cross-resistance to didanosine (ddI) or dideoxycytidine (ddC) has been less well documented. ZDV, ddI, and ddC susceptibility data have been collected from clinical HIV-1 isolates obtained by five clinical centers and their respective retrovirology laboratories. All subjects were treated only with ZDV. Clinical HIV-1 isolates were isolated, amplified, and assayed for drug susceptibility in standardized cultures of phytohemagglutinin-stimulated donor peripheral blood mononuclear cells obtained from healthy seronegative donors. All five cohorts showed a correlation between decreased in vitro susceptibility to ZDV and decreased susceptibility to ddI and ddC. For each 10-fold decrease in ZDV susceptibility, an average corresponding decrease of 2.2-fold in ddI susceptibility was observed (129 isolates studied; P < 0.001, Fisher's test of combined significance). Similarly, susceptibility to ddC decreased 2.0-fold for each 10-fold decrease in ZDV susceptibility (82 isolates studied; P < 0.001, Fisher's test of combined significance). These data indicate that a correlation exists between HIV-1 susceptibilities to ZDV and ddI or ddC for clinical HIV-1 isolates.
Incident Ticket Analytics for IT Application Management Services (2014)

An important IT service outsourcing business is to resolve incidents related to IT infrastructures our clients contract our company to support. Incidents are recorded as structured and unstructured data in tickets, which contain various characteristics
Flight physics: essentials of aeronautical disciplines and technology, with historical notes (2010)

Preface 1 History of Aviation 1.1 Introduction 1.2 Early history and the invention of ballooning 1.3 The period between 1799 and 1870 1.4 The decades between 1870 and 1890 1.5 From 1890 until the Wright Flyer III 1.6 European aviation between 1906 and 1918 1.7 Aviation between the world wars 1.8 Development after 1940 Bibliography 2 Introduction to Atmospheric Flight 2.1 Flying - How is that possible? 2.2 Static and dynamic aviation 2.3 Forces on the aeroplane 2.4 Lift, drag and thrust 2.5 Properties of air 2.6 The earth's atmosphere 2.7 The standard atmosphere 2.8 Atmospheric flight Bibliography 3 Low-Speed Aerodynamics 3.1 Speed domains and compressibility 3.2 Basic concepts 3.3 Equations for steady flow 3.4 Viscous flows 3.5 The boundary layer 3.6 Flow separation and drag 3.7 Shape and scale effects on drag Bibliography 4 Lift and Drag at Low Speeds 4.1 Function and shape of aeroplane wings 4.2 Aerofoil sections 4.3 Circulation and lift 4.4 Aerofoil section properties 4.5 Wing geometry 4.6 High-aspect ratio straight wings 4.7 Low-aspect ratio wings 4.8 The whole aircraft Bibliography 5 Aircraft Engines and Propulsion 5.1 History of engine development 5.2 Fundamentals of reaction propulsion 5.3 Engine efficiency and fuel consumption 5.4 Piston engines in aviation 5.5 Gas turbine engine components 5.6 Non-reheated turbojet and turbofan engines 5.7 Turboprop and turboshaft engines 5.8 Gas turbine engine operation 5.9 Propeller performance Bibliography 6 Aeroplane Performance 6.1 Introduction 6.2 Airspeed and altitude 6.3 Equations of motion for symmetric flight 6.4 Steady straight and level flight 6.5 Climb and descent 6.6 Gliding flight 6.7 Cruising flight 6.8 Take-off and landing 6.9 Horizontal steady turn 6.10 Manoeuvre and gust loads Bibliography 7 Stability and Control 7.1 Flying qualities 7.2 Elementary concepts and definitions 7.3 Tail surfaces and flight control 7.4 Pitchingmoment of aerofoils 7.5 Static longitudinal stability 7.6 Dynamic longitudinal stability 7.7 Longitudinal control 7.8 Static lateral stability 7.9 Dynamic lateral stability 7.10 Lateral control 7.11 Stalling and spinning Bibliography 8 Helicopter Flight Mechanics 8.1 Helicopter general arrangements 8.2 Hovering flight 8.3 The rotor in level flight 8.4 Flight performance 8.5 Stability and control Bibliography 9 High-Speed Flight 9.1 Complications due to the compressibility of air 9.2 Compressible flow relationships 9.3 Speed of sound and Mach number 9.4 Flow in a channel 9.5 Shock waves and expansion flows 9.6 High-subsonic speed 9.7 Transonic speed 9.8 Supersonic speed 9.9 Supersonic propulsion 9.10 Performance and operation Bibliography A Units and Dimensions B Principles of Aerostatics Index