gebhart/patrepeval huggingface dataset:
Hydrolysis of N,N-disubstituted imidate esters (1975)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrolysis of N,N-disubstituted imidate estersVincent F. Smith Jr. and Gaston L. SchmirCite this: J. Am. Chem. Soc. 1975, 97, 11, 3171–3177Publication Date (Print):May 1, 1975Publication History Published online1 May 2002Published inissue 1 May 1975https://pubs.acs.org/doi/10.1021/ja00844a041https://doi.org/10.1021/ja00844a041research-articleACS PublicationsRequest reuse permissionsArticle Views254Altmetric-Citations6LEARN 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
Acoustic and aerodynamic performance of a variable-pitch 1.83-meter-(6-ft) diameter 1.20-pressure-ratio fan stage (QF-9) (1977)

Far field noise data and related aerodynamic performance are presented for a variable pitch fan stage having characteristics suitable for low noise, STOL engine application. However, no acoustic suppression material was used in the flow passages. The fan was externally driven by an electric motor. Tests were made at several forward thrust rotor blade pitch angles and one for reverse thrust. Fan speed was varied from 60 to 120 percent of takeoff (design) speed, and exhaust nozzles having areas 92 to 105 percent of design were tested. The fan noise level was at a minimum at the design rotor blade pitch angles of 64 deg for takeoff thrust and at 57 deg for approach (50 percent takeoff thrust). Perceived noise along a 152.4-m sideline reached 100.1 PNdb for the takeoff (design) configuration for a stage pressure ratio of 1.17 and thrust of 57,600 N. For reverse thrust the PNL values were 4 to 5 PNdb above the takeoff values at comparable fan speeds.
Sharpening-demosaicing with the shift-invariant Haar wavelet transform (2009)

A monochrome-image iterative deblurring method with the classical soft-shrinkage scheme in the shift-invariant Haar wavelet transform domain was recently proposed by R. H. Chan et al (2003). Extending the method, we present a new iterative sharpening-demosaicing method with the shift-invariant Haar wavelet transform and our previously proposed soft color-shrinkage utilizing inter-channel color cross-correlations. Our new iterative method performs demosaicing and sharpening simultaneously in the wavelet transform domain. Simulation results demonstrate that our new method works as efficiently as our previously proposed sharpening-demosaicing method with the TV regularization in the spatial image-domain.
Personalized privacy protection in social networks (2010)

Due to the popularity of social networks, many proposals have been proposed to protect the privacy of the networks. All these works assume that the attacks use the same background knowledge. However, in practice, different users have different privacy protect requirements. Thus, assuming the attacks with the same background knowledge does not meet the personalized privacy requirements, meanwhile, it looses the chance to achieve better utility by taking advantage of differences of users' privacy requirements. In this paper, we introduce a framework which provides privacy preserving services based on the user's personal privacy requests. Specifically, we define three levels of protection requirements based on the gradually increasing attacker's background knowledge and combine the label generalization protection and the structure protection techniques (i.e. adding noise edge or nodes) together to satisfy different users' protection requirements. We verify the effectiveness of the framework through extensive experiments.
Das neue Bibliotheksgesetz des Kantons St. Gallen: Ein Impuls für die schweizerische Bibliotheksgesetzgebung (2013)

Im schweizerischen Kanton St. Gallen ist in den letzten zwei Jahren das erste moderne Bibliotheksgesetz der Schweiz angeregt, erarbeitet, parlamentarisch beraten und beschlossen worden. Es wird bald in Kraft treten und könnte eine Vorreiterrolle in der schweizerischen Bibliotheksgesetzgebung übernehmen. Der vorliegende Aufsatz zeichnet den nur rund 20 Monate dauernden Gesetzgebungsprozess nach: Lancierung der Bibliotheksinitiative, Erarbeitung eines Gegenvorschlags durch die Regierung und Debatte im Kantonsrat. Er skizziert sodann den Inhalt des Gesetzes, indem er es einem deutschen Vergleichstext gegenüberstellt, zeigt den Nutzen der Erarbeitung von Bibliotheksgesetzen auf und schliesst mit einem Ausblick auf das weitere Vorgehen. Eine Darstellung der Vorgeschichte seit Sommer 2000 wird vom Verfasser später andernorts publiziert.
Phenotypic and functional analyses show stem cell-derived hepatocyte-like cells better mimic fetal rather than adult hepatocytes (2014)

HLCs from different sources are broadly comparable with unbiased proteomic evidence for faithful differentiation down the liver lineage. This current phenotype mimics human fetal rather than adult hepatocytes.
Heuristics for speeding up gaze estimation (2005)

A deformable template method for eye tracking on full face images is presented.The strengths of the method are that it is fast and retains accuracy independently of the resolution.We compare the method with a state of the art active contour approach, showing that the heuristic method is more accurate.
ISA and EISA Theory and Operation (1992)

The aim of this study was to determine whether polymorphisms of the glucocorticoid receptor gene, influencing glucocorticoid sensitivity, are associated with persistent nasal carriage of Staphylococcus aureus. Two nasal swab cultures were obtained from each of 2,929 participants. Subjects were classified as persistent carriers (n=563) if both cultures were positive. GG homozygotes of the exon 9beta polymorphism were associated with a 68% reduced risk of persistent S. aureus nasal carriage, whereas carriers of the codon 23 lysine allele displayed an 80% increased risk. Thus, genotype-dependent variation in the sensitivity to glucocorticoids is associated with tolerance toward staphylococcal nasal colonization.
A robust smart power bandgap reference circuit for use in an automotive environment (2002)

In junction-isolated smart power technologies, negative voltages at the drain terminal of a power DMOS lead to minority carrier injection into the substrate. This can cause malfunction of sensitive circuits such as bandgap references and may subsequently lead to severe functional failures of the device. Furthermore, in smart power ICs, very high chip temperatures can occur due to excessive power dissipation on- or off-chip in fault conditions. In such cases, the operation of a bandgap reference must be guaranteed to ensure safe shutdown of the device even at excessive chip temperatures. In this paper, a robust bandgap circuit for the use in smart power ICs is presented. It is insensitive to minority carrier injection into the substrate and operates reliably up to temperatures of 260/spl deg/C.
Experimental Demonstrations of Next Generation Cost-Effective Mobile Fronthaul with IFoF technique (2015)

We described next generation mobile fronthaul based on IFoF technique and theoretically estimated its system performances. Based on our analysis, we also experimentally demonstrated mobile fronthaul with 12 IF carriers on a single wavelength.
Adenoviral Gene Transfer Is Inhibited by Soluble Factors in Malignant Pleural Effusions (2000)

Direct in vivo gene delivery is a prerequisite for many gene therapy strategies; however, efficacy has been limited by a lack of therapeutic gene transfer. In studying intrapleural malignancy as a model for the gene therapy of non-small cell lung cancer, we previously identified soluble chondroitin sulfate-proteoglycans/glycosaminoglycans (CS-PG/GAGs) in malignant pleural effusions (MPE) as factors that inhibit retroviral vector (RV) transduction. Similarly, we have observed inhibition to gene transfer in the fluid component of MPE using adenoviral (Ad) vectors. Analyses indicate that the factors responsible for the block are filterable, soluble, titrable, and heat stable (56 degrees C). Passage through microporous membranes fractionates the inhibitory factors into large (> 100 kD) components of the effusions. In contrast to RV transduction, hyaluronic acid or CS-PG/GAGs are not the inhibitors because the block is not reversed by pretreatment of the effusions with mammalian hyaluronidase, and exogenous addition of GAGs into the transduction media does not diminish Ad transduction. In considering the mechanism of action of the inhibitory factors, we observe that Ad entry, and specifically the binding of radiolabeled Ad to its target cell, is inhibited in the presence of MPE. Ad internalization may also be impaired; however, these studies exclude soluble fibronectin in MPE as a competitive inhibitor of Ad transduction. Lastly, sepharose A- mediated immunoglobulin depletion of MPE only partially reverses the block, and significant inhibition to Ad gene transfer persists at lower adenovirus:target cell ratios. Identifying the structural and functional basis for inhibition to Ad gene transfer may yield specific strategies to enable better in vivo translation of gene therapy approaches.
Characterization of the cure of TGDDM/DDS epoxy resins by chemiluminescence I. Spectral and thermal analysis (1987)

Abstract The emission of weak visible chemiluminescence (CL) during the cure of a tetraglycidyl 4,4′‐diaminodiphenyl methane (TGDDM)‐based epoxy resin, with three different concentrations of 4,4′‐diaminodiphenylsulfone (DDS) has been studied at 135°C. Spectral analysis indicates that the CL originates from trace oxidation of the TGDDM resin and the emission intensity is sensitive to the viscosity changes during cure. From thermal analysis data, sharp discontinuities in CL intensity are shown to occur at the gel point. The temperature dependence of CL from a cured resin also shows a sharp discontinuity at T g . These results indicate that CL provides a sensitive monitor of both the kinetics of gelation and the network formation in this epoxy resin.
<title>Ladder structures for multidimensional linear-phase perfect reconstruction filter banks and wavelets</title> (1992)

The design of multidimensional filter banks and wavelets have been areas of active research for use in video and image communication systems. At the same time efficient structures for the implementation of such filters are of importance. In 1-D, the well known lattice structure and the recently introduced ladder structure are attractive. However, their extensions to higher dimensions (m-D) have been limited. In this paper we reintroduce the ladder structure, with the purpose of transforming the structure into m-D using the McClellan transform.
A Scheme for Partial Disclosure of Transaction Log (2005)

SUMMARY To investigate cyber-criminals, Police sometimes asks Administrator of a computer system to disclose the whole transaction log. Administrator, however, wants to protect the privacy of innocent users. This paper presents a solution for the disclosure/privacy problem of transaction log. In this scheme, Police can search over the encrypted records of the transaction log by keywords. The administrator discloses only the records which include the keyword, but nothing more. Police can verify that the ad
Storage of Platelet Concentrates at 22°C (1970)

Abstract A technique has been proposed which allows easy preparation of platelet concentrates within a closed, sterile system and maximal utilization of other blood components. Lifespan studies have been performed to demonstrate the viability of platelets prepared in this manner. Such concentrates can be stored for as long as three days with adequate maintenance of viability for tranfusion purposes if certain technical requirements are met. Important among these are attention to concentrate volume and pH; agitation of the concentrate is helpful for maintenance of viability. Twelve studies in thrombocytopenic recipients suggest that stored concentrates will be safe and effective in transfusion practice.
The performance of occupancy-based lighting control systems: A review (2010)

This paper reviews the literature on occupancy-based lighting control as a prelude to the application of sensor networks to building management. Many buildings include systems to detect occupancy and control building services. Current systems use single measurement points to detect occupancy, and there can be significant uncertainty associated with the measurement of occupancy. Long time delay and high detector sensitivity settings compensate for this uncertainty, but these diminish the savings that could be achieved with more accurate occupancy measurement. More effective control may be provided by more extensive sensing, using a network of occupancy sensors, and more extensive analysis of sensor data. The literature reviewed in this paper establishes the need for an investigation of the performance of sensor networks when used for lighting control.
Fiber optic test and measurement (1998)

This is the most authoritative, complete source of test and measurement information for engineers who design and maintain fiber optic networks.This book presents measurement principles for characterizing all three basic components of a fiber optic communication system: the optical transmitter, fiber medium and optical receiver. It also covers system level measurements, and discusses the principles and limitations of current fiber optic testing equipment. It discusses testing to SONET/SDH international standards, and helps engineers choose the best approach to testing today's new erbium doped fiber amplifiers. The book provides detailed recommendations for understanding polarization states, and presents new methods for accurately characterizing the behavior of Wavelength Division Multiplexing (WDM) fiber systems. It includes detailed coverage of testing fiber in the local loop, using optical power meters and optical time domain reflectometers. It also reviews the latest state-of-the-art 10 Gb/s systems, and even faster systems on the horizon. The coverage is practical, helping professionals accurately measure and test fiber optic systems without becoming experts in theory.
Steering assisting system for obstacle avoidance based on personalized potential field (2012)

This paper presents the identification technique of the personalized potential map to design the obstacle avoidance assisting control. First of all, the personalized potential map, which is considered to represent the driver's risk feeling to environment is learned by using the obstacle avoidance driving data. Next, the reference path is calculated with gradient method considering the vehicle dynamics from identified potential field, and the avoidance assisting system is realized so as to track on the obtained path. Finally, the validity of the proposed assisting system is verified.
Transition-Metal-Doped M-Li<sub>8</sub>ZrO<sub>6</sub> (M = Mn, Fe, Co, Ni, Cu, Ce) as High-Specific-Capacity Li-Ion Battery Cathode Materials: Synthesis, Electrochemistry, and Quantum Mechanical Characterization (2016)

Lithium-ion batteries (LIBs) are promising devices for high capacity, rechargeable electrical energy storage; however, LIBs are currently limited by the low specific capacity of the cathode compared to the anode. In previous work, our group demonstrated the viability of a novel cathode material, Li8ZrO6 (LZO), through computational and experimental results. Here we report a general synthesis for transition-metal-doped LZO, and we study the effects of doping on electrochemical delithiation and relithiation. A synthesis using transition-metal (M) doped ZrO2 nanoparticle/carbon black composites as precursors produces doped M-LZO with grain sizes between 35 and 67 nm. The materials were tested as electrode materials. Specific capacities of the doped materials depend on the transition metal and on the Li:Zr ratio used in the synthesis, but they are generally higher than in similarly prepared undoped LZO. In this set of cathode materials, Fe3+-doped LZO/C composites showed the highest specific capacities, with an initial discharge capacity higher than two Li ions per formula unit, a specific capacity of 175 mAh/g maintained after 140 cycles, and a specific capacity greater than 80 mAh/g at a rate of 5C. The effects of doping were also investigated by density functional calculations of dopant locations, band gaps, and delithiation energies. We found that all of the dopants that we studied are more favorably located in Li ion sites than in Zr ion sites. The calculated doping effects on structural parameters agree well with experiments. We also found that doping with any of these ions leads to smaller band gaps. Electronic structure calculations with the HSE06 exchange-correlation functional show that deintercalation after doping with Ce3+, Cu2+, or Co2+ at a Li site decreases the attainable cell voltage, whereas Fe3+ doping at a Li site increases it. Because of the large polarization and high carbon content of the M-LZO/C composite electrodes, further materials optimization will be needed before they become practical for LIBs.
Association of Serotonin Transporter Gene Polymorphisms With Poststroke Depression (2008)

The 5-HTTLPR and the STin2 VNTR, but not the rs25531, polymorphisms of SERT are associated with PSD in stroke survivors. This gives further evidence of a role of SERT polymorphisms in mediating resilience to biopsychosocial stress.
Ultrastructural localization of angiotensin I-converting enzyme (EC 3.4.15.1) and neutral metalloendopeptidase (EC 3.4.24.11) in the proximal tubule of the human kidney. (1988)

We investigated the location and relative concentration in the human kidney of two enzymes involved in the processing of regulatory peptides, i.e., the angiotensin I-converting enzyme (ACE) and the neutral metalloendopeptidase 24.11 (NEP). Antibodies raised against these purified human kidney enzymes were used to determine their ultrastructural distribution by the immunogold procedure. Immunocytochemistry was performed on ultrathin frozen sections of fixed human kidney. Both enzymes were localized on the outside of the brush-border plasma membrane and, to a lesser extent, in vesicular organelles in the apical regions of epithelial cells in the proximal tubules. In addition, moderate amounts of NEP and some ACE were detected on the basal infoldings. No NEP or ACE was found in the distal tubules. Gold particles on the brush-border of proximal tubular epithelial cells were quantified with a computer based morphometry system. The results indicated about equal numbers of accessible antigenic sites for NEP and ACE on the brush-border at concentrations of antisera which yielded optimal labeling. The prominent localization of ACE and NEP on the brush-border membranes of proximal tubular epithelium suggests that these enzymes in the proximal tubules are involved in the cleavage of plasma-derived peptides after glomerular filtration.
Deep-Learning-Based Signal Detection for Banded Linear Systems (2018)

Motivated by the recent advances in deep learning, we propose to design high-accuracy low-complexity signal detectors for banded linear systems based on deep neural networks (DNNs). We first design a fully connected DNN for signal detection. Then, to deal with the curse of dimensionality, we propose a novel convolutional neural network (CNN) based on the banded structure of the channel matrix. From simulations, we observe that the proposed CNN outperforms the fully connected DNN in both accuracy and computational time. Moreover, CNN is more robust for the extension to channel matrices with a large size or a wide band. We also run extensive numerical experiments to show that both fully connected DNN and CNN perform much better than existing detectors with comparable complexity.
A simple optical system for real-time size measurements of TRISO fuel pellets (2005)

Oak Ridge National Laboratory (ORNL) has begun the development of a program for the manufacturing and characterizing fuel pellets for use in advanced nuclear reactors. To achieve high reliability it is necessary to characterize the pellets during production runs. In this paper we present a simple TRISO Particle Counting And Sizing Tool (TP-CAST) that performs dual measurements of counting and size estimation for particles at rates up to 200 per second. The TP-CAST is based on a laser with line-generation optics and a PC-based data acquisition and analysis system. The instrument can measure 1000 micron pellets with a standard deviation of approximately 11 microns and with counting errors less than 0.075%. Our paper discusses the signal modeling, algorithms for size estimation, system design, and experimental results of the prototype TP-CAST system assembled at ORNL.
Neue Methoden zur Herstellung von Carbonsäure‐arylestern. Über aktivierte Ester VIII (1957)

Abstract Two new methods for preparing carboxylic acid aryl esters are presented. They consist in reacting the carboxylic acid with (a) aryl sulfites or (b) aryl phosphites in the presence of pyridine. A possible mechanism of the sulfite method is discussed.
The Thermal Decomposition Process of Calcium Sulfite (1978)

Abstract The thermal decomposition of calcium sulfite at temperatures below 880 °C in an argon stream was examined. Also, the reaction between calcium sulfate and calcium sulfide, which were formed during the decomposition process of calcium sulfite, was examined. The thermal decomposition process of calcium sulfite can be represented as follows: on heating calcium sulfite, the reaction, CaSO3→CaO+SO2, occurs above about 600 °C. Above about 680 °C, the reaction, 4CaSO3→3CaSO4+CaS, occurs besides the above reaction. Furthermore, the reaction between calcium sulfate and calcium sulfide which are formed during the decomposition process of calcium sulfite, 3CaSO4+CaS→4CaO+4SO2, occurs above about 780 °C.
A Model-Based Admission Control for 802.11e EDCA using Delay Predictions (2007)

This paper presents a unique approach for a model-based admission control algorithm for the IEEE 802.11e enhanced distributed channel access (EDCA) standard. The analytical model used as the foundation for the algorithm covers both nonsaturation and saturation conditions. This allows us to keep the system out of saturation by monitoring several variables. Since the medium access delay represents the service time of the system, it is used as the threshold condition to ensure that the queuing delay is within reasonable bounds. The paper describes the admission control algorithm and several simulation results are presented and discussed.
Detection and localization of multiple short range targets using FMCW radar signal (2016)

In this paper, a 24 GHz frequency-modulated continuous wave radar is used to detect and localize both stationary and moving targets. Depending on the application, the implemented software offers different modes of operation. For example, it can simply output raw data samples for advanced offline processing or directly carry out a two dimensional fast Fourier transform to estimate the location and velocity of multiple targets. To suppress clutter and detect only moving targets, two methods based on the background reduction and the slow time processing techniques are implemented. A trade-off between the two methods is presented based on their performance and the required processing time.