gebhart/patrepeval huggingface dataset:
Polymer Characterization Using Two-Dimensional Nuclear Magnetic Resonance (2D-NMR) &mdash; Application of TROSY (2012)

A [1H, 13C] TROSY method for unlabeled polyfluorenes was established using high-field (600–900 MHz) instruments. The line width of [1H, 13C] TROSY depended very little on the molecular weight of the polymer as well as magnetic field strength. Suppression of 1H peaks which were bound to 12C atoms was sufficient to utilize unlabeled samples. It was found that [1H, 13C] TROSY prevents the broadening of NMR peaks which is one of the biggest problems to obtain high resolution NMR spectra of high molecular weight (>105 g/mol) polymers. This result indicates that [1H, 13C] TROSY can be applied to unlabeled and high molecular weight synthetic polymers.
Determination of Trace Impurities in Corrosive Gases by Gas-Phase FTIR (1993)

Abstract Trace moisture and other potential impurities (CO2, CH4, C2H6, and alkyl halides) in HCl and in HBr gases were analyzed by gas-phase FTIR spectroscopic technique. The detection limit was estimated to be 100 ppb with 2 cm−1 spectral resolution for 5-min measurement time at 1.2 kg cm−2 pressure, using an MCT detector and an 8-m-pathlength gas cell with BaF2 windows.
An Efficient Two-Fold Marginalized Bayesian Filter for Multipath Estimation in Satellite Navigation Receivers (2010)

Multipath is today still one of the most critical problems in satellite navigation, in particular in urban environments, where the received navigation signals can be affected by blockage, shadowing, and multipath reception. Latest multipath mitigation algorithms are based on the concept of sequential Bayesian estimation and improve the receiver performance by exploiting the temporal constraints of the channel dynamics. In this paper, we specifically address the problem of estimating and adjusting the number of multipath replicas that is considered by the receiver algorithm. An efficient implementation via a two-fold marginalized Bayesian filter is presented, in which a particle filter, grid-based filters, and Kalman filters are suitably combined in order to mitigate the multipath channel by efficiently estimating its time-variant parameters in a track-before-detect fashion. Results based on an experimentally derived set of channel data corresponding to a typical urban propagation environment are used to confirm the benefit of our novel approach.
Ultrasonic Stress Measurement: Application to Preload Assessment on Already Tightened Bolts (2006)

This DOI is not currently attached to any metadata records. DOIs can’t actually ever be deleted (they’re persistent), but sometimes our members create DOIs in error. We do have a process to approximate deletion which we follow only in rare cases where the DOI has been genuinely created in error, and most crucially, if the DOI has never been published anywhere online or in print and never otherwise distributed to or communicated with anyone (authors, readers, reviewers, etc.
Handbook of Information Security Management (1998)

From the Publisher:
Completely revised and updated, the Handbook of Information Security Management 1998 continues to report how the best and the brightest security experts handle some of the most challenging security problems. The Handbook of Information Security Management 1998 provides dozens of case studies and analyses showing you how to protect your data systems and data.
Ultra high bandwidth WDM using silicon microring modulators (2010)

We report 50 Gbit/s modulation capability using four silicon micro ring modulators within a footprint of 500 microm(2). This is the highest total modulation capability shown in silicon using compact micro-ring modulators. Using the proposed techniques, silicon nanophotonic bandwidths can meet the requirements of future CMOS interconnects by using multiple wavelengths to extend beyond single device speeds.
DENSITY OF SEMIMARTINGALE DERIVEN BY CANONICAL STOCHASTIC DIFFERENTIAL EQUATION (1997)

The existence and the smoothness of density of random variables which are solutions of the canonical stochastic differential equation can be proved by simpler conditions in the Malliavin-Bismut method.
Software design and development for automotive online monitoring system (2011)

This paper presents the design and development of an online monitoring system that collects data over time or distance with a built-in instrument or sensors. Currently, an online data collection system (Vehicle Data logger) from general vehicle is not available in the market. Only the vehicles' manufacturers have the tool to access the engine ECU to monitor the vehicle's data. Current available automotives meter are display an estimated but inaccurate speed, engine revolution, fuel and temperature data. This project is developed to record the speed of vehicle, engine revolution (rpm), engine temperature, fuel volume and distance parameters. The software design of V-model has been developed to implement a sophisticated data viewing methods. The program utilized new framework based on track segmenting to better organize data, instantly provides summaries of segment data and attempts to better display the driving performance. The characteristic of fuel sender (to determine fuel volume in Litre) and temperature sender (to determine engine temperature in Celsius) is downloaded to EEPROM. All the recorded information are saved in RAM of the microcontroller, which can be reset after load the information to the (personal computer) PC using UART communication with Keyword 2000 protocol. All the measurements were carried out on selected road track as the field test of total trips about 3 kilometers. The recorded data have been analyzed and validated using an external (Global Positioning System) GPS navigator.
THE EFFECT OF DONOR BLOOD TRANSFUSION ON CADAVER KIDNEY TRANSPLANT OUTCOME (1984)

Etude sur 62 transplantations de rein de cadavre. Confirmation de l'effet benefique de transfusions sanguines administrees au donneur peu avant la nephrectomie sur la survie du greffon a long terme
ChemInform Abstract: CdZn<sub>2</sub>KB<sub>2</sub>O<sub>6</sub>F, a New Fluoride Borate Crystal. (2010)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Inverse spectral decomposition (2004)

This paper introduces a method which spectrally decomposes a seismic trace by solving an inverse problem. In our technique, the reverse wavelet transform with a library of complex wavelets serves as a forward operator. The inversion reconstructs the wavelet coefficients that represent the seismic trace and satisfy an additional constraint. The constraint is needed as the inverse problem is non‐unique. We show synthetic and real examples with three different types of constraints: 1) minimum L2 norm, 2) minimum L1 norm, and 3) sparse spike, or minimum support constraint. The sparse‐spike constraint has the best temporal and frequency resolution. While the inverse approach to spectral decomposition is slow compared to other techniques, it produces solutions with better time and frequency resolution than popular existing methods.
Carbon nanotubes-semiconductor networks for organic electronics: The pickup stick transistor (2005)

We demonstrate an alternative path for achieving high transconductance organic transistors in spite of relatively large source to drain distances. The improvement of the electronic characteristic of such a scheme is equivalent to a 60-fold increase in mobility of the underlying organic semiconductor. The method is based on percolating networks, which we create from a dispersion of individual single-wall carbon nanotubes and narrow ropes within an organic semiconducting host. The majority of current paths between source and drain follow the metallic nanotubes but require a short, switchable semiconducting link to complete the circuit. With these nanotube-semiconducting composites we achieve effectively a 60× reduction in source to drain distance, which is equivalent to a 60-fold increase of the “effective” mobility of the starting semiconducting material with a minor decrease of the on/off current ratio. These field-induced percolating networks allow for the fabrication of high-transconductance transistors having relatively large source to drain distances that can be manufactured inexpensively by commercially available printing techniques.
특집 : 중국 스포츠법의 제문제 ; 강제성 스포츠 중재조항의 정당성에 대한 분석 (2010)

경기 스포츠의 특수한 요구로 인하여 강제성 스포츠 중재조항이 나타나기 시작하였다. 중재는 자원을 기초로 하는 것에도 불구하고 강제성 스포츠 중재 조항이 나타났기에 많은 쟁론을 불러 일으켰다. 동시에 중국의《스포츠중재조례》는 긴박하게 제정하는 과정중인데 스포츠 중재가 자원의 원칙을 준수 하는가 아니면 강제관할원칙을 준수하는가의 문제가 불가피면하게 쟁의의 중점으로 되었다. 본문은 이론과 실천의 각도로부터 강제성 스포츠 중재조항의 정당성에 대하여 분석하여 스포츠중재가 자원관할원칙을 준수하여야 한다는 관점을 제기하였다.
Periodic Analog Channel Estimation Aided Beamforming for Massive MIMO Systems (2019)

Analog beamforming is an attractive and cost-effective solution to exploit the benefits of massive multiple-input-multiple-output systems, requiring only one up/down-conversion chain. However, the presence of only one chain imposes a significant overhead in estimating the channel state information required for beamforming, when conventional digital channel estimation (CE) approaches are used. As an alternative, this paper proposes a novel CE technique, called periodic analog CE (PACE), which can be performed by analog hardware. By avoiding digital processing, the estimation overhead is significantly lowered and does not scale with the number of antennas. PACE involves the periodic transmission of a sinusoidal reference signal by the transmitter, the estimation of its amplitude and phase at each receive antenna via analog hardware, and using these estimates for beamforming. To enable such non-trivial operation, two reference tone recovery techniques and a novel receiver architecture for PACE are proposed and analyzed, both theoretically and via simulations. The results suggest that in sparse, wide-band channels and above a certain signal-to-noise ratio, PACE-aided beamforming suffers only a small loss in beamforming gain and enjoys a much lower CE overhead, in comparison to conventional approaches. The benefits of using PACE-aided beamforming during the initial access phase are also discussed.
Seed Formation (1975)

Crop loss due to soil salinization is an increasing threat to agriculture worldwide. This review provides an overview of cellular and physiological mechanisms in plant responses to salt. We place cellular responses in a time- and tissue-dependent context ...Read More
Hierarchical real-time garbage collection (2007)

Memory management is a critical issue for correctness and performance in real-time embedded systems. Recent work on real-time garbage collectors has shown that it is possible to provide guarantees on worst-case pause times and minimum mutator utilization time. This paper presents a new hierarchical real-time garbage collection algorithm for mixed-priority and mixed-criticality environments. With hierarchical garbage collection, real-time programmers can partition the heap into a number of heaplets and for each partition choose to run a separate collector with a schedule that matches the allocation behavior and footprint of the real-time task using it. This approach lowers worst-case response times of real-time applications by 26%, while almost doubling mutator utilization - all with only minimal changes to the application code.
Acoustic analysis of whispered speech for phoneme and speaker dependency (2011)

Whisper is used by speakers in certain circumstances to protect personal information. Due to the differences in production mechanisms between neutral and whispered speech, there are considerable differences between the spectral structure of neutral and whispered speech, such as formant shifts and shifts in spectral slope. This study analyzes the dependency of these differences on speakers and phonemes by applying a Vector Taylor Series (VTS) approximation to a model of the transformation of neutral speech into whispered speech, and estimating the parameters of this model using an Expectation Maximization (EM) algorithm. The results from this study shed light on the speaker and phoneme dependency of the shifts of neutral to whisper speech, and suggest that similarly derived model adaptation or compensation schemes for whisper speech/speaker recognition will be highly speaker dependent. Index Terms: whispered speech, speech analysis
Airborne detection of oceanic turbidity cell structure using depth-resolved laser-induced water Raman backscatter (1983)

Airborne depth-resolved laser-induced sea-water Raman-backscatter waveforms have been obtained along a flight line extending westward from a point approximately 30 km seaward of Assateague Island to a point where the beach was intersected at latitude 38.1 degrees N and longitude 75.2 degrees W. Pulses from a 337.1-nm nitrogen laser were repetitively transmitted vertically downward into the water column. The laser-induced water Raman backscatter pulse at 381-nm wavelength was depth (or time) resolved into forty bins having widths of -25 cm each. When converted to along-track profiles, the waveforms reveal cells of decreased Raman backscatter superimposed on an overall trend of monotonically decreasing water column optical transmission. This airborne lidar technique shows potential for (1) rapid, quantitative, synoptic study of the homogeneity of the oceanic water column and (2) measurement of the horizontal spatial distribution of the optical transmission of the upper mixed layer of the ocean. A multiple convolution model of a Gaussian transmitted pulse, Gaussian sea surface height, and slope probability density, together with an exponential-decay water-column impulse response, is shown to qualitatively account for the observed pulse shape.
Integrated robust identification and control of large scale processes (1998)

We propose the use of pseudo-singular values, which are closely related to singular values but are allowed to have sign, as a convenient approach for developing techniques for the identification and control of large scale processes. Steady-state controllability can be assessed directly in terms of the pseudo-singular values. It is shown that to control an output disturbance direction with zero steady-state error, it is necessary to correctly identify the sign of the corresponding pseudo-singular value. At the identification stage, this motivates the estimation of confidence intervals for the pseudo-singular values from input-output data. A controller with integral action should not attempt to manipulate in process input directions corresponding to output disturbance directions that cannot be controlled with confidence. These principles motivate a controller structure appropriate for providing the robust control of poorly conditioned large scale processes. Any controller design technique can be applied to produce a controller with the proposed controller structure.
High-quality porous-silicon buried waveguides (2001)

This letter reports a method to produce porous-silicon waveguides by means of a laser local oxidation process. The estimated losses of the waveguides are below 1 dB/cm. This demonstrates the applicability of this material in integrated optics and telecommunications. Moreover, our results disclose the opportunity to integrate optoelectronic devices onto Si substrates. The laser writing method is achievable at low laser power, thus it is highly efficient and achievable with the standard equipment present in most laboratories. Another advantage is that oxidation is achieved without heating the complete chip, thus simplifying the integration process, i.e., the oxidation is inherently local through the direct-write process. This method opens the opportunity to build microstructures, like channel and membrane filters, in a flexible manner by R&D laboratories.
Ultra-compact Contentionless ROADM Architecture with High Resilience Based on Flexible Wavelength Router (2014)

We present a novel CDC-ROADM architecture based on flexible wavelength router which consists of two N×N WSSs. The proposed architecture is compact, low cost and provides a fully 1+1 redundant solution with high resilience.
Impact of FcγRIIa-FcγRIIIa Polymorphisms and <i>KRAS</i> Mutations on the Clinical Outcome of Patients With Metastatic Colorectal Cancer Treated With Cetuximab Plus Irinotecan (2009)

Combined FcgammaRIIa/FcgammaRIIIa polymorphisms are prognostic factors for disease progression in mCRC patients treated with cetuximab plus irinotecan. As these polymorphisms are also clinically relevant in mutated-KRAS mCRC, an important role of ADCC in cetuximab efficacy is presumed.
The Experimental Infection of Chickens with Mixtures of Infectious Bronchitis Virus and Escherichia coli (1985)

By inoculating chickens intranasally with a collection of strains of infectious bronchitis virus (IBV) of the Massachusetts serotype and of Escherichia coli of different serotypes, a pool of viral and bacterial strains was selected which, on inoculation, consistently produced a highly lethal disease closely resembling the natural disease produced by these two organisms. The conditions for reproducing the experimental disease were not rigorous in that, within broad limits, the size of the viral and bacterial inocula were not important; neither were the times at which both organisms were administered in relation to each other. The breed or strain of chicken used was important and the resistance of chickens to fatal infection increased with age. When the E. coli strains of the pool were inoculated intranasally without the IBV component, the chickens remained well; bacteriological examination of chickens inoculated with one of the E. coli strains, O18, revealed little evidence of invasion of the tissues or even of persistence of the inoculated E. coli strain in the upper respiratory tract. A minority of the IBV strains examined were lethal for chickens when inoculated without E. coli but many of them only produced a substantial mortality when the E. coli were included in the inoculum; IBV strains in this latter category included the vaccine strains H52 and H120. High concentrations of IBV strain M41 and E. coli O18 persisted in the upper respiratory tract for a number of days after they had been inoculated together. Much lower concentrations of IBV M41 were found in the internal organs, such as the spleen; E. coli O18 was only found in these sites in some of the inoculated chickens. Coliform organisms proliferated in the upper respiratory tract of chickens inoculated with IBV alone; they were rarely found in their internal organs.
Advance made in light-emitting devices (1995)

RETURN TO ISSUEPREVNewsNEXTAdvance made in light-emitting devicesRON DAGANICite this: Chem. Eng. News 1995, 73, 10, 8Publication Date (Print):March 6, 1995Publication History Published online12 November 2010Published inissue 6 March 1995https://pubs.acs.org/doi/10.1021/cen-v073n010.p008https://doi.org/10.1021/cen-v073n010.p008newsACS PublicationsCopyright © 1995 American Chemical SocietyArticle Views12Altmetric-Citations-LEARN 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 options SUBJECTS:Diodes,Layered materials,Mixtures,Thin films Get e-Alerts
Industrial pollution control (1979)

Deals specifically with pollution problems of agro-industries, providing information that can be used to analyze and solve these problems. Presents a general description of the industrial process, the characteristics of the waste products, and the applicable waste treatment methods, including the expected performance and cost of the methods. Part 1 presents general discussions of pollution control approaches and an overview of problems and solutions. Part 2 provides details for making decisions pertaining to preliminary designs and evaluation.
Coded excitation for harmonics imaging (2002)

For harmonics imaging, coded and chirped low level excitations are investigated in order not to break the microballoon contrast agent, and not to cause spectrum leakage via nonlinear propagation distortion of the transmission pulse. A half frequency square-root amplitude apodized signal is proposed to match to the harmonic domain matched filter after the second harmonic process by the microballoon agent. The cases and causes when this doesn't work are also discussed.
Stability constants and <sup>1</sup>H relaxation effects of ternary complexes formed between gd‐dtpa, gd‐dtpa‐bma, gd‐dota, and gd‐edta and citrate, phosphate, and carbonate ions (1997)

Formation of ternary complexes between Gd-DTPA, Gd-DTPA-BMA, and Gd-DOTA, used as contrast enhancement agents in MRI and the endogenously available carbonate and phosphate ions, has been demonstrated. The extent of ternary complex formation and its effect on the proton relaxation, measured at 9 MHz, rates is negligible at around pH < 8. The complex Gd-EDTA forms more stable ternary complexes with carbonate and phosphate and it also strongly coordinates the terdentate citrate ligand. The formation of ternary complexes Gd-EDTA(X) (X = CO3(2-), Cit3-) results in a significant decrease in the proton relaxation rates under physiological conditions.
InGaN-Based Single-Chip Multicolor Light-Emitting Diodes (2003)

A light-emitting diode (LED) driving technique to realize single-chip multicolor LEDs was proposed. The technique utilizes one of the characteristics of InGaN-based visible LEDs, the current-induced spectral blueshift. By applying pulsed current, which had two pulses of different amplitude in a cycle, to an InGaN single-quantum-well green LED, the light of two wavelengths corresponding to bluegreen and green was emitted from the same point, and the emission color of the LED was controlled continuously from bluegreen to green by adjusting only the pulse widths.
Hearing aid fitting procedures - state-of-the-art and current issues (2001)

In the differential diagnosis as well as in the rehabilitation of hearing impaired children other disorders affecting language aquisition and speech development need to be taken into account. The rehabilitation programme is highly dependent on the early diagnosis of these additional disorders such as dysphasia, mental retardation of various degrees, cognitive disorders such as dyslexia and dysgraphia, dyspractic and dysarthric disorders of speech production, cleft palate and other anomalies of articulatory organs, autism and other abnormal features of psychic and personality development. In addition children with multiple disorders like malformations, visual disorders, epilepsy, CP and other diseases and handicaps, even though they may not influence language and speech development directly, may still be deprived of possibilities to aquire adequate verbal stimulation. The paper presents a material of 200 children whose hearing loss was diagnosed at the preschool age. Major associated handicaps were found in 35.5% of cases and in 26% they were complicating rehabilitation and development of the child. The frequency of associated disorders and their effect on language and speech development, learning ability and social development is being more closely analysed and discussed.