gebhart/patrepeval huggingface dataset:
Stability of Metal Chelates. II. β-Hydroxyethyliminodiacetic Acid (1952)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStability of Metal Chelates. II. β-Hydroxyethyliminodiacetic AcidS. Chaberek Jr., R. C. Courtney, and A. E. MartellCite this: J. Am. Chem. Soc. 1952, 74, 20, 5057–5060Publication Date (Print):October 1, 1952Publication History Published online1 May 2002Published inissue 1 October 1952https://pubs.acs.org/doi/10.1021/ja01140a019https://doi.org/10.1021/ja01140a019research-articleACS PublicationsRequest reuse permissionsArticle Views383Altmetric-Citations104LEARN 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
An adaptive hysteresis-band current control technique of a voltage-fed PWM inverter for machine drive system (1990)

An adaptive hysteresis-band control method where the band is modulated with the system parameters to maintain the modulation frequency to be nearly constant is described. Although the technique is applicable to general AC motor drives and other types of load, an interior permanent magnet (IPM) synchronous machine load is considered. Systematic analytical expressions of the hysteresis band are derived as functions of system parameters. An IPM machine drive system with a voltage-fed current-controlled PWM (pulse width modulation) inverter has been computer simulated to study the performance of the proposed method.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Nitric oxide donors reduce the rise in reperfusion-induced intestinal mucosal permeability (1993)

Recent data have demonstrated that inhibition of nitric oxide synthesis exacerbated the mucosal injury associated with reperfusion of the postischemic intestine. In this study, using a feline 1-h intestinal ischemia followed by reperfusion model, we tested the possibility that exogenous sources of nitric oxide may prevent the reperfusion-induced mucosal barrier disruption and examined the mechanisms involved. Mucosal barrier integrity was assessed by determining 51Cr-EDTA clearance from blood to lumen. Intestinal blood flow and resistance were also determined. Reperfusion after 1 h of ischemia significantly increased 51Cr-EDTA clearance (0.05 +/- 0.01 to 0.35 +/- 0.07 ml.min-1.100 g-1) and decreased intestinal blood flow by 50%. Exogenous sources of nitric oxide including SIN-1, CAS-754, and nitroprusside as well as exogenous L-arginine all reduced reperfusion-induced mucosal barrier dysfunction without improving intestinal blood flow. Inhibition of endogenous nitric oxide with NG-nitro-L-arginine methyl ester between 1 and 2 h of reperfusion further augmented the rise in mucosal permeability associated with ischemia-reperfusion. Addition of the permeable analogue of guanosine 3',5'-cyclic monophosphate, 8-bromoguanosine 3',5'-cyclic monophosphate, improved reperfusion-induced intestinal blood flow significantly but did not provide protection against mucosal barrier disruption associated with the first hour of ischemia-reperfusion. Exogenous sources of nitric oxide can reduce reperfusion-induced mucosal barrier dysfunction independent of alterations in intestinal blood flow.
On the joint effects of fiber parametric gain and birefringence and their influence on ASE noise (1998)

Parametric gain (PG) in optical fibers may substantially enhance amplified spontaneous emission (ASE) noise, especially in long-haul amplified links. We present new results that permit to accurately characterize the effects of PG on ASE noise, as well as the interplay of PG and ASE noise with fiber dispersion in both the anomalous and normal dispersion regions. In a recent letter, we introduced the concept of a PG transfer matrix, that allows the easy evaluation of ASE noise enhancement over chains of amplified fiber spans. In the same letter we showed that the transfer matrix can be expressed in analytical closed-form when a scalar (single polarization) fiber is assumed. In this paper we extend the analysis to a more realistic two-polarization fiber model that accounts for both linear and nonlinear polarization coupling effects. We show that the new transfer matrix does not have an analytical expression, but can be easily evaluated using standard numerical algorithms. ASE noise enhancement due to PG turns out to be slightly lower in a realistic birefringent two-polarization fiber than a single-polarization fiber. An interesting result is that the single polarization model yields a convenient approximation to ASE noise enhancement, that can be evaluated analytically.
美国齿轮制造商协会(AGMA)颁布新的齿轮标准 (1992)

在过去的二年中,AGMA已经成为一个在新的齿轮标准方面很多产的创造者。在这二部分的文章中,你将了解这些新的标准会怎样影响你对齿轮特性的判定。文章的第一部分探讨了新的分类标准。齿轮标准给制造商和用户提供了一种评价齿轮的共同语
A new approach to investigate Li<sub>2</sub>MnO<sub>3</sub>and Li(Ni<sub>0.5</sub>Mn<sub>0.3</sub>Co<sub>0.2</sub>)O<sub>2</sub>mixed phase cathode materials (2013)

In this work, cathodes consisting of a Mn–rich electrochemically inactive Li2MnO3 phase and a Li(Ni0.5Mn0.3Co0.2)O2 (NMC) phase are processed by pulsed laser deposition (PLD). Different from the traditional bulk/powder synthesis approach, pure materials of the two phases are either uniformly integrated by co-deposition of the two phases or deposited sequentially as a layered structure, to emulate Li-rich mixed phase cathode materials. A high deposition temperature, 750 °C, was used to grow the films on c-cut sapphire and stainless steel substrates. The films either in a random form or in a more controlled multilayer-type, both show excellent film quality. The multilayer composite films show superior capacity, cycling and rate capabilities, with a capacity of 293 mA h g−1 at 0.05 C. This method gives much better control of the Mn content of the cathode, phase purity and combination schemes, i.e., mixing at the atomic level or embedding Li2MnO3 domains of different sizes in the NMC matrix or both. Moreover, this approach can be applied to screen lithium-rich Mn phase and other novel material combinations in a more controlled and expedient manner.
Radial Inner Morphology Effects on the Mechanical Properties of Amorphous Composite Cobalt Boride Nanoparticles (2010)

The manuscript reports on quantitative microcompression tests performed on novel composite nanoparticles (CNPs) consisting of cobalt boride coated with silica. This material exhibits a complex three-regimes response that entails both elastic and plastic deformation, and may result from several concurring deformation processes (i.e., mechanical, chemical, and magnetic). The results are interpreted in consideration of the pre-existent distribution of radial defects found in the cobalt boride core of the CNPs. Such defects represent a signature feature of such nanocomposites, which sets them apart from any defect-free, single-phase nanoparticle reported previously, and are of great relevance to both reverse plasticity and strain hardening (i.e., proper irreversible plasticity) effects observed. Since the mechanical response is actively pursued for MEMS and NEMS applications (central to these efforts is addressing the relationship between confined volumes and applied stress), the reported results become a major step toward the full potential of nanostructures and consequently of the next generation device technologies.
Temporal Attentive Alignment for Video Domain Adaptation (2019)

Although various image-based domain adaptation (DA) techniques have been proposed in recent years, domain shift in videos is still not well-explored. Most previous works only evaluate performance on small-scale datasets which are saturated. Therefore, we first propose a larger-scale dataset with larger domain discrepancy: UCF-HMDB_full. Second, we investigate different DA integration methods for videos, and show that simultaneously aligning and learning temporal dynamics achieves effective alignment even without sophisticated DA methods. Finally, we propose Temporal Attentive Adversarial Adaptation Network (TA3N), which explicitly attends to the temporal dynamics using domain discrepancy for more effective domain alignment, achieving state-of-the-art performance on three video DA datasets. The code and data are released at http://github.com/cmhungsteve/TA3N.
Self‐Assembly, Structure, and Spontaneous Resolution of a Trinuclear Triple Helix from an Oligobipyridine Ligand and Ni<sup><scp>II</scp></sup> Ions (1993)

Three strands of the oligobipyridine ligand are wound around three octahedrally coordinated NiII ions to form a helix. In the crystal packing, each triple helix is located in the center of a hexagon of six other triple helices (picture on the right). The crystals of this compound contain varying numbers of left and right-handed helices.
Otitis: anatomy every practitioner should know. (2009)

Chronic otitis externa is a difficult, frustrating problem. Four etiologic components must be considered: primary and secondary causes and perpetuating and predisposing factors.1 Usually, these cases are complex and involve more than one component. Perpetuating factors are changes in the anatomy and physiology of the ear that occur in response to inflammation in the ear canal and the perpetuating factors already present. They are self-perpetuating, are not disease specific, and include failure of self-cleaning mechanisms and proliferative changes that create folds and stenosis of the lumen of the ear canal. Elimination of perpetuating factors often requires aggressive cleaning of the ear and long-term therapy. It is important to avoid damaging key structures while aggressively cleaning the ear. Therefore, to adequately diagnose and manage perpetuating factors, veterinarians must recognize normal ear anatomy and physiology.
Message Processing and Dispatching for the Simple Network Management Protocol (SNMP) (1999)

This document describes the Message Processing and Dispatching for SNMP messages within the SNMP architecture [RFC2261]. It defines the procedures for dispatching potentially multiple versions of SNMP messages to the proper SNMP Message Processing Models, and for dispatching PDUs to SNMP applications. This document also describes one Message Processing Model - the SNMPv3 Message Processing Model.
Synthesis of discrete-interval binary signals with specified Fourier amplitude spectra (1979)

Abstract A closed-form solution is presented for the discrete-interval, binary, periodic signal the complex Fourier coefficient spectrum of which optimally approximates in the least squares sense a desired complex Fourier coefficient spectrum. From this solution an efficient numerical procedure is derived for synthesis of discrete-interval, binary, periodic signals the Fourier amplitude spectrum of which is optimal in the same sense. Numerical examples show the practical feasibility of the procedure.
An access control mechanism to ensure privacy in named data networking using attribute-based encryption with immediate revocation of privileges (2015)

For future Internet, information-centric networking (ICN) is considered a potential solution to many of its current problems. However, concern regarding the protection of user data persists. This paper presents an access control mechanism that will allow users to set fine-grained access policies for applications in named data networking (NDN), a popular ICN architecture. Using an attribute-based encryption scheme with an immediate revocation of privileges, data security is guaranteed. The mechanism inserts a proxy server to mediate the access to the protected data and to inspect for revocation. As an optional feature, the NDN router can add proxy server functions. According to the experiments, the proposed security mechanism proved functional in terms of processing time, memory usage, and file size, which influence both storage and transmission and demonstrate efficiency in manipulating dozens of attributes in an access policy.
Extension of the Life of a Flashlamp Pumped Ti:Sapphire Laser. (1996)

We have measured the characteristics of a flashlamp pumped Ti: sapphire laser in which a double step simmer circuit and a solid state florescent converter (KTF-2 filter glass) were used in order to extend the life time of the laser equipment. The pulse width of the main discharge current was measured to be 6 μs for a 200-μs prepulse. We measured the laser energy as a function of shot number. The results have shown that the life time of the flashlamps was 105 shots, and that the double step simmer circuit did not only increase the life timeof the flashlamps but also improved the pumping efficiency. The characteristic influence of the KTF-2 filter glass was a red shift of the spectra emitted by the flashlamps, which avoids damage of the laser crystal and improves its absorption efficiency.
Dual-color three-dimensional STED microscopy with a single high-repetition-rate laser (2015)

We describe a dual-color three-dimensional stimulated emission depletion (3D-STED) microscopy employing a single laser source with a repetition rate of 80 MHz. Multiple excitation pulses synchronized with a STED pulse were generated by a photonic crystal fiber, and the desired wavelengths were selected by an acousto-optic tunable filter with high spectral purity. Selective excitation at different wavelengths permits simultaneous imaging of two fluorescent markers at a nanoscale resolution in three dimensions.
Morphological skin colour changes in teleosts (2009)

Abstract Morphological skin colour change in fish is often referred to in the sole context of background adaptation. It is becoming increasingly apparent that it is a broad phenomenon elicited by a variety of factors. To date, no review has attempted to integrate the different types of morphological colour changes occurring in teleosts, their ecological origins and the regulatory mechanisms involved, often restricting the view on the subject. First, the origin of skin colour is addressed in teleosts including chromatophore type and distribution, pigment biosynthetic pathways and their interactions to one‐another. Second, the different types of morphological colour changes occurring in teleosts are categorized and a key distinction is made between proximate and ultimate morphological colour changes. These are defined respectively as the change of phenotype during an established life‐stage in response to environmental interactions and during the transition between two developmental‐stages phenotypically pre‐adapted to their ancestral ecosystems. Nutrition and UV‐light are primary factors of proximate morphological colour changes beyond the control of the organism. By contrast, background light conditions and social interactions are secondary proximate factors acting through the control of the organism. Highly diversified among teleosts, ultimate morphological skin colour changes are presented in term of alterations in skin structure and pigment deposition during metamorphosis in different species. Finally, the physiological and endocrine mechanisms regulating both proximate and ultimate morphological colour changes are reviewed.
Removal by traction of incarcerated transvenous pacemaker electrode (1968)

<h3>To the Editor:—</h3> Cardiac pacing by transvenous electrode has extended this therapeutic modality to those too ill for thoracotomy. Thus, it is often temporarily used in rhythm disturbances due to myocardial infarction. The present development of demand impulse generators, which avoid the risk of competitive stimulation with resultant ventricular arrhythmia and fibrillation, will greatly increase the usefulness of the transvenous electrode in the management of myocardial infarction. Transvenous pacing has been beset with many complications. While improvement of impulse generators may reduce their related complications materially, the problems of the transvenous electrodes remain. These complications related to transvenous electrodes have been reported in the literature:<sup>1-7</sup> Arrhythmias during insertion Bleeding Infection Thrombophlebitis Wound sepsis Subacute bacterial endocarditis Air embolization Phrenic stimulation Fracture of electrode Erosion of the electrode through the skin Perforation of the right ventricle Displacement of the electrode with loss of pacing. The transvenous electrode is quickly incorporated into
Efficient initialization schemes for real-time 3D camera tracking using image sequences (2011)

3D camera tracking is an important issue for many kinds of applications such as augmented reality and robotics navigation. When image sequences are used, tracking needs to be initialized by matching 2D data extracted from images with 3D data representing a priori knowledge of the world. However, this process is difficult and the accuracy of the pose estimation strongly depends on the accuracy of the previous matching step. In this paper, we present two original approaches that achieve a 2D/3D points-based matching in order to initialize the 3D camera tracking. The first one is semi-automatic and requires the intervention of the user. The second one is completely automatic. Both approaches are based on SURF descriptors, which have the advantages of being fast and robust against outliers. A description of these two approaches is given and results obtained from experiments performed on real data are exposed and discussed.
Image-Based Virtual Camera Motion Strategies (2000)

This paper presents an original solution to the camera control problem in a virtual environment. Our objective is to present a general framework that allows the automatic control of a camera in a dynamic environment. The proposed method is based on the image-based control or visual servoing approach. It consists in positioning a camera according to the information perceived in the image. This is thus a very intuitive approach of animation. To be able to react automatically to modifications of the environment, we also considered the introduction of constraints into the control. This approach is thus adapted to highly reactive contexts (virtual reality, video games). Numerous examples dealing with classic problems in animation are considered within this framework and presented in this paper.
A system for automatic recognition of handwritten words (1964)

The recognition of handwriting can be considered an important problem in the general pattern recognition area because the set of patterns, say individual words, possesses a degree of variability that far exceeds that of problems where relatively good solutions have been previously found. Whereas in the case of character recognition the number of pattern classes considered different usually does not exceed one hundred, the number of pattern classes with which one finds himself confronted here is only limited by the vocabulary of the language. Furthermore, the problem is reasonably well-defined, i.e., in most cases the correct categorization choice is known by comparison with human performance. In some cases such performance by different people may not result in complete agreement, but even then the number of alternative results is restricted to a small number. Experimental data are readily available and their variability, insofar as they depend on subject and context, can be easily controlled.
Combination of a liquid fibrin sealant with sheet‐type hemostatic agents: Experimental evaluation in partial nephrectomy animal model (2011)

Liquid fibrin sealants, together with sheet-type hemostatic agents, have been used during partial nephrectomies to secure effective hemostasis at the suture site. Using animal kidneys, we investigated which hemostatic agent might adhere most effectively to the renal tissue and serve best as a bolster. Liquid fibrin sealant alone, or in combination with a sheet-type hemostat, such as collagen, gelatin or oxidized-cellulose hemostat, was applied to the cut surface of the kidney of anesthetized rabbits, and the differences in the degree of adherence to the kidney and resultant hemostatic efficacy were evaluated. Histological analyses were also carried out to compare the degree of adherence of each of the aforementioned hemostats to the kidney tissue. Fibrin sealant plus the collagen or gelatin hemostat was found to have a stronger hemostatic effect than fibrin sealant applied alone or fibrin sealant plus oxidized-cellulose hemostat. The histological investigation showed that the fibrin sealant adhered well to kidney tissue when it was applied with the collagen or gelatin hemostat, showing the advantage of combining these two materials for achieving effective hemostasis. Fibrin sealant used in combination with the collagen or gelatin hemostat was the most suitable for obtaining a reinforced hemostatic effect at the suture site in a partial nephrectomy animal model.
Nonlinear Photonic Crystals (1998)

Nonlinear frequency conversion in 2D ${\ensuremath{\chi}}^{(2)}$ photonic crystals is theoretically studied. Such a crystal has a 2D periodic nonlinear susceptibility, and a linear susceptibility which is a function of the frequency, but constant in space. It is an in-plane generalization of 1D quasi-phase-matching structures and can be realized in periodic poled lithium niobate or in GaAs. An interesting property of these structures is that new phase-matching processes appear in the 2D plane as compared to the 1D case. It is shown that these in-plane phase-matching resonances are given by a nonlinear Bragg law, and a related nonlinear Ewald construction. Applications as multiple-beam second-harmonic generation (SHG), ring cavity SHG, or multiple wavelength frequency conversion are envisaged.
ILP versus TLP on SMT (1999)

By sharing processor resources among threads at a very fine granularity, a simultaneous multithreading processor (SMT) renders thread-level parallelism (TLP) and instruction-level parallelism (ILP) operationally equivalent. Under what circumstances are they performance equivalent?
A model-based approach to prognostics and health management for flight control actuators (2004)

Impact technologies have developed a robust modeling paradigm for actuator fault detection and failure prediction. This model-based approach to prognostics and health management (PHM) applies physical modeling and advanced parametric identification techniques, along with fault detection and failure prediction algorithms, in order to predict the time-to-failure for each of the critical, competitive failure modes within the system. Advanced probabilistic fusion strategies are also leveraged to combine both collaborative and competitive sources of evidence, thus producing more reliable health state information. These algorithms operate only on flight control command/response data. This approach for condition-based maintenance provides reliable early detection of developing faults. As an advantage over 'black-box' health-monitoring schemes, faults and failure modes are traced back to physically meaningful system parameters, providing the maintainer with invaluable diagnostic and prognostic information. The developed model-based reasoner was validated and demonstrated on an electromechanical actuator (EMA) provided by Moog, Inc.