gebhart/patrepeval huggingface dataset:
ENHANCING COLOUR FASTNESS PROPERTIES OF DENIMFABRICS BY USING NANOFILM DEPOSITION METHOD (2019)

The washing and the special treatments (enzyme and/or pumice washing for aged look) on denim garments are the important parameters influencing cloth shade, color fastness and the fabric mechanical properties. The most commonly used indigo dyestuff for dyeing denim fabrics is the process of producing waste, consuming excess energy and wate. In this study, we made an attempt to reduce the environmental damage of denim dyeing processes by using nanocoating method. Indigo and reactive dyed denim fabrics were purchased from GAP Textile and used for obtaining nanofilm coated denim fabrics. Optifix E50 is used for cationic layers and Tanapur EP3027 is used for anionic layers. In the deposition process, denim fabrics were deposited with 10 multilayer films by using a padding machine for padding process and a modified open-width washing machine for continuous process. Scanning electron microscopy measurements were used to verify the presence of the deposited nanolayers. Colour fastness to washing, Colourfastness to Perspiration, Colourfastness to Water, Colourfastness to crocking and tensile strength were performed to examine the LbL process effect on the denim fabric properties. This study shows that continuous nanofilm deposition process can be used for enhancing color fastness properties of especially reactive dyed denimfabrics
Step-stare technique for airborne high-resolution infrared imaging (2004)

The Infrared Eye project was developed at DRDC Valcartier to improve the efficiency of airborne search and rescue operations. A high performance opto-mechanical pointing system was developed to allow fast positioning of a narrow field of view with high resolution, used for search and detection, over a wide field of view of lower resolution that optimizes area coverage. This system also enables the use of a step-stare technique, which rapidly builds a large area coverage image mosaic by step-staring a narrow field camera and properly tiling the resulting images. The resulting image mosaic covers the wide field of the current Infrared Eye, but with the high resolution of the narrow field. For the desired application, the camera will be fixed to an airborne platform using a stabilized mount and image positioning in the mosaic will be calculated using flight data provided by an altimeter, a GPS and an inertial unit. This paper presents a model of the complete system, a dynamic step-stare strategy that generates the image mosaic, a flight image taking simulator for strategy testing and some results obtained with this simulator.
The Oxidation of Certain Pteroylglutamic Acid Analogs1 (1961)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Oxidation of Certain Pteroylglutamic Acid Analogs1ROBERT L. DION and TI LI LOOCite this: J. Org. Chem. 1961, 26, 6, 1857–1859Publication Date (Print):June 1, 1961Publication History Published online1 May 2002Published inissue 1 June 1961https://pubs.acs.org/doi/10.1021/jo01065a041https://doi.org/10.1021/jo01065a041research-articleACS PublicationsRequest reuse permissionsArticle Views82Altmetric-Citations8LEARN 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
On limiting Delay and Jitter characteristics at application-layer of Multi-connected Systems (2020)

This paper addresses the challenge of limiting the delay and jitter characteristics in a communication system under a multi-connectivity setup. We consider an end-to-end system where the traffic source is connected to the network via multiple wireless interfaces and the application is sensitive to the perceived delay and jitter. We consider both the delay and jitter characteristics for each individual link with a varying degree of channel condition and scheduling requirements. Several challenges are identified for the application responsible for splitting and aggregating the traffic. In this system there is no cellular network coordination for the interface association to different available cellular base stations. The paper provides simulation and empirical results along with analytical models for understanding the implications of jitter and delay parameters in multi-connectivity setup. The work proposes a method to select the received packets such that both delay and jitter are limited in order to improve the overall system performance.
Nucleation Kinetics and Microstructure Evolution of Traveling ASTM F75 Droplets (2010)

Abstract A method is devised for the prediction and control of the nucleation kinetics and solidification microstructure of traveling droplets of a cobalt‐base biocompatible alloy ASTM F75. Mono‐size droplets produced by the uniform‐droplet spray (UDS) process (a capillary jet breakup process) are quenched on substrates at different flight distances to determine nucleation distance from the splat morphology. Using the nucleation temperatures estimated from the splat morphology as references, the nucleation kinetics of F75 droplets is predicted and presented in the form of a continuous‐cooling transformation diagram. Cooling 300 µm F75 UDS droplets in argon gas resulted in an estimated supercooling of 132 K and formation of a well‐defined dendritic microstructure, whereas cooling the same droplets in helium gas produced a larger supercooling of 377 K and a microcrystalline structure indicative of dendrite fragmentation. This process, with stringent control of nucleation kinetics, can produce F75 balls with a rapid solidification microstructure suitable for bio‐implant applications.
Responsiveness of Oxytocin-Producing Neurons to Acute Salt Loading in Rats: Comparisons with Vasopressin-Producing Neurons (1986)

Plasma oxytocin-associated neurophysin concentration [( OT-RNP]) was used to evaluate the responsiveness of oxytocinergic neurons to an acute salt load in Long-Evans (LE) rats and Brattleboro homozygous (DI) rats. This responsiveness was compared with that of vasopressinergic neurons in LE rats as indexed by plasma vasopressin-associated neurophysin concentration [( VP-RNP]). Acute salt loading was induced by infusing 18% saline for 60 min into conscious, trained, chronically catheterized animals and plasma osmolality (Posm) and mean arterial pressure (MAP) were monitored. An increase in Posm was associated with a rise in [OT-RNP] and the relationship between delta [OT-RNP] and delta Posm was similar for both LE and DI rats over the first 40 min of infusion (21.6 and 19.7 fmol ml-1 mosm-1 kg-1, respectively). Although Posm continued to rise between 40 and 60 min infusion, [OT-RNP] actually fell slightly during this period in LE rats to a final elevation of 682 +/- 40 fmol/ml above initial values whereas [OT-RNP] in DI rats continued to rise to a final elevation of 1,927 +/- 288 fmol/ml above initial values at 60 min of infusion. The differences between these elevations at 60 min for LE and DI rats were highly significant (p less than 0.001). For LE rats, the increase of [OT-RNP] with Posm for the first 40 min of infusion was much greater than the increase in [VP-RNP] with the slope between delta [VP-RNP] and delta Posm being only 8.3 compared to 21.6 fmol ml-1 mosm-1 kg-1 in the case of delta [OT-RNP].(ABSTRACT TRUNCATED AT 250 WORDS)
Plasma acylcarnitine concentrations reflect the acylcarnitine profile in cardiac tissues (2017)

Increased plasma concentrations of acylcarnitines (ACs) are suggested as a marker of metabolism disorders. The aim of the present study was to clarify which tissues are responsible for changes in the AC pool in plasma. The concentrations of medium- and long-chain ACs were changing during the fed-fast cycle in rat heart, muscles and liver. After 60 min running exercise, AC content was increased in fasted mice muscles, but not in plasma or heart. After glucose bolus administration in fasted rats, the AC concentrations in plasma decreased after 30 min but then began to increase, while in the muscles and liver, the contents of medium- and long-chain ACs were unchanged or even increased. Only the heart showed a decrease in medium- and long-chain AC contents that was similar to that observed in plasma. In isolated rat heart, but not isolated-contracting mice muscles, the significant efflux of medium- and long-chain ACs was observed. The efflux was reduced by 40% after the addition of glucose and insulin to the perfusion solution. Overall, these results indicate that during fed-fast cycle shifting the heart determines the medium- and long-chain AC profile in plasma, due to a rapid response to the availability of circulating energy substrates.
Influence of nanosecond repetitively pulsed discharges on the stability of a swirled propane/air burner representative of an aeronautical combustor (2015)

This paper reports on an experimental study of the influence of a nanosecond repetitively pulsed spark discharge on the stability domain of a propane/air flame. This flame is produced in a lean premixed swirled combustor representative of an aeronautical combustion chamber. The lean extinction limits of the flame produced without and with plasma are determined and compared. It appears that only a low mean discharge power is necessary to increase the flame stability domain. Lastly, the effects of several parameters (pulse repetition frequency, global flowrate, electrode location) are studied.
Discovery of a Potent Dual Inhibitor of Wild-Type and Mutant Respiratory Syncytial Virus Fusion Proteins (2020)

A novel series of macrocyclic pyrazolo[1,5-<i>a</i>]pyrimidine derivatives as respiratory syncytial virus (RSV) fusion glycoprotein (F protein) inhibitors were designed and synthesized based on docking studies of acyclic inhibitors. This effort resulted in the discovery of several macrocyclic compounds, such as <b>12b</b>, <b>12f</b>, and <b>12h</b>, with low nanomolar to subnanomolar activities against the wild-type RSV F protein A2. In addition, <b>12h</b> showed a single-digit nanomolar potency against the previously reported drug-resistant mutant D486N. Molecular modeling and computational analyses suggested that <b>12h</b> binds to the D486N mutant while maintaining a rigid bioactive conformation via macrocyclization and that it interacts with a hydrophobic cavity of the mutant using a new interaction surface of <b>12h</b>. This report describes the rational design of macrocyclic compounds with dual inhibitory activities against wild-type and mutant RSV F proteins.
ChemInform Abstract: FACILE SYNTHESIS OF 6,7‐DICHLORO‐1‐OXO‐5‐INDANYLALKANOIC ACIDS AND RELATED COMPOUNDS VIA TRIFLATE DISPLACEMENT (1980)

Abstract Aus den Dichlor‐hydroxy‐indanonen (I) entstehen die Triflate (II), die mit Malonester zu (III) kondensiert und dann zu den Essigsäuren (IV) verseift und decarboxyliert werden.
Dynamic mapping of normal human hippocampal development (2006)

The hippocampus, which plays an important role in memory functions and emotional responses, has distinct subregions subserving different functions. Because the volume and shape of the hippocampus are altered in many neuropsychiatric disorders, it is important to understand the trajectory of normal hippocampal development. We present the first dynamic maps to reveal the anatomical sequence of normal human hippocampal development. A novel hippocampal mapping technique was applied to a database of prospectively obtained brain magnetic resonance imaging (MRI) scans (100 scans in 31 children and adolescents), scanned every 2 yr for 6-10 yr between ages 4 and 25. Our results establish that the structural development of the human hippocampus is remarkably heterogeneous, with significant differences between posterior (increase over time) and anterior (loss over time) subregions. These distinct developmental trajectories of hippocampal subregions may parallel differences in their functional development.
HOW TO CLUTCH SKILLS FROM HIGHER EDUCATION CURRICULA: ANALYSIS OF PORTUGUESE LEARNING OUTCOMES (2019)

In Portugal, the Agency for Assessment and Accreditation of Higher Education - A3ES - promotes and ensures the quality of higher education, following the development of quality management systems in the European space. Thus, their mission is to contribute to improving the quality of Portuguese higher education, through the assessment and accreditation of higher education institutions and their study programmes, and to ensure the integration of Portugal in the European quality assurance system of higher education. This agency performs the assessment and accreditation of higher education study programmes in 1st, 2nd and 3rd cycles. &#13;\n&#13;\nAt an initial stage of the accreditation process, HEI submit an accreditation proposal to A3ES. In the description of each study programme for evaluation, HEI must describe what are the “intended learning outcomes” they expected students will achieve at the end of a specific period of learning. Data analysis focused on information included in this question, and which is limited to 1000 characters. All proposal of study programs submitted to accreditation in A3ES, from 2009 to 2014, were examined (n = 2961). A content analysis was carried out using the MAXQDA software for qualitative data analysis (version 12). Adopting a theoretical thematic analysis approach, instead of a data-driven option (Braun &amp; Clarke, 2006), a competence matrix of technical and generic skills were identified. Based on these qualitative results, a set of 30 learning competencies cited in all the Portuguese study cycle curricula official documentation was analysed. The relative importance of a given competency, in each curriculum, was roughly estimated by counting the number of corresponding mentions in the document submitted to A3ES for approval. A Principal Component Analysis, with varimax rotation, allowed the association of the 30 competencies with nine components. Each new component was, then, characterized based on the initial variables’ loadings. The nine components could also be associated with several distinct features of the higher education study programmes (study cycle and scientific area) and institutes (namely geographical location, university/polytechnic subsystem, and private/public sector). This study aims to contribute to the identification of areas for improvement of study programmes in Portugal.
Local, Nonvolatile Electronic Writing of Epitaxial Pb(Zr 0.52 Ti 0.48 )O 3 /SrRuO 3 Heterostructures (1997)

A scanning probe microscope was used to induce local, nonvolatile field effects in epitaxial, ferroelectric Pb(Zr 0.52 Ti 0.48 )O 3 /SrRuO 3 heterostructures. Field-effected regions with linewidths as small as 3500 angstroms were written by locally switching the polarization field of the Pb(Zr 0.52 Ti 0.48 )O 3 layer; the electronic density of the underlying metallic SrRuO 3 layer was modified and the sheet resistance was changed by up to 300 ohms per square. This procedure is completely reversible and allows submicrometer electronic features to be written directly in two dimensions, with no external electrical contacts or lithographic steps required.
Neural and Response Correlations to Complex Natural Sounds in the Auditory Midbrain (2016)

How natural communication sounds are spatially represented across the inferior colliculus, the main center of convergence for auditory information in the midbrain, is not known. The neural representation of the acoustic stimuli results from the interplay of locally differing input and the organization of spectral and temporal neural preferences that change gradually across the nucleus. This raises the question of how similar the neural representation of the communication sounds is across these gradients of neural preferences, and whether it also changes gradually. Analyzed neural recordings were multi-unit cluster spike trains from guinea pigs presented with a spectrotemporally rich set of eleven species-specific communication sounds. Using cross-correlation, we analyzed the response similarity of spiking activity across a broad frequency range for neurons of similar and different frequency tuning. Furthermore, we separated the contribution of the stimulus to the correlations to investigate whether similarity is only attributable to the stimulus, or, whether interactions exist between the multi-unit clusters that lead to neural correlations and whether these follow the same representation as the response correlations. We found that similarity of responses is dependent on the neurons' spatial distance for similarly and differently frequency-tuned neurons, and that similarity decreases gradually with spatial distance. Significant neural correlations exist, and contribute to the total response similarity. Our findings suggest that for multi-unit clusters in the mammalian inferior colliculus, the gradual response similarity with spatial distance to natural complex sounds is shaped by neural interactions and the gradual organization of neural preferences.
Clinical efficacy of a new chitin nanofibrils-based gel in wound healing. (2008)

Recent progress in wound management is mainly in terms of physiological support for healing. Since infections delay healing and worsen scar formation, there is a desire to achieve closure as soon as possible. The main goals of wound care are prevention of infection, maintenance of a moist environment, protection of the wound and achievement of minimum scar formation. In this study were investigated in a clinical model the effects of a new chitin nanofibrils-based gel on the rate and quality of wound healing. Chitin has some unusual properties which accelerate the healing of wounds in humans. The main biochemical activities of chitin and chitosan-based materials are: polymorphonuclear cell activation, fibroblast activation, cytokine production, giant cell migration and stimulation of type IV collagen synthesis. The results of this clinical study confirm that chitin nanofibrils-based gel promotes rapid and physiological healing of different types of wounds. Moreover, it seems to prevent hypertrophic scarring and keloid scarring.
Stochastic Modeling and Resolution-Free Rendering of Film Grain (2016)

The realistic synthesis and rendering of film grain is a crucial goal for many amateur and professional photographers and film-makers whose artistic works require the authentic feel of analog photography. The objective of this work is to propose an algorithm that reproduces the visual aspect of film grain texture on any digital image. Previous approaches to this problem either propose unrealistic models or simply blend scanned images of film grain with the digital image, in which case the result is inevitably limited by the quality and resolution of the initial scan. In this work, we introduce a stochastic model to approximate the physical reality of film grain, and propose a resolution-free rendering algorithm to simulate realistic film grain for any digital input image. By varying the parameters of this model, we can achieve a wide range of grain types. We demonstrate this by comparing our results with film grain examples from dedicated software, and show that our rendering results closely resemble these real film emulsions. In addition to realistic grain rendering, our resolution-free algorithm allows for any desired zoom factor, even down to the scale of the microscopic grains themselves.
Grid-Forming Converters Control Based on the Reactive Power Synchronization Method for Renewable Power Plants (2021)

The massive penetration of renewable energy sources in electrical systems has been displacing synchronous generators (SGs) from conventional power plants in the last few years. Renewable generation plants are usually connected to power grids through electronic power converters, which cannot provide the same power generation services as SGs due to their mode of operation. Recently, different concepts have been proposed for electronic converter control in an attempt to emulate the performance of SGs, resulting in the so-called grid-forming converters (GFCs). This paper proposes a new GFC control strategy based on the reactive power synchronization (RPS) method, which decouples the synchronizing power and the active power control of renewable generation source to which a converter is connected. For this purpose, this study assesses three power sources: batteries, photovoltaic (PV) plants, and full-converter wind turbines. Moreover, the study proposes models and controls for each of these sources, whose dynamics exert a decisive influence on the grid services provided by renewable energy plants. Thereafter, the study proposes a GFC-RPS control scheme and verifies its effectiveness in different applications; for example, inertial response, which provides power immediately through a fast frequency response after a grid has experienced a load variation. Unlike storage systems and wind turbines, PV plants can only render these services if they are not operating at maximum power. Further, the study validates the GFC-RPS control strategy for regulating AC voltage at the output terminals of a converter. Finally, the paper assesses GFC hot swapping during the transition from a grid-connected to an isolated-operation mode while feeding a dynamic load. Results revealed that both the voltage and frequency remain stable, thereby demonstrating that the proposed GFC-RPS control indeed acts as a true voltage source and emulates the behavior of a conventional SG.
Enumeration of Legionella CFU by Colony Hybridization Using Specific DNA Probes (2002)

Oligonucleotide probes and colony hybridization (CH) were applied to enumerate organisms of the genus Legionella in cooling tower water. The CH counts indicated almost the same results as CFU counts in cultivated samples derived from the water. It was concluded that it is possible to substitute the CH procedure for the conventional one.
Modélisation jusqu'à 45 GHz des couplages entre microvias et cavités en technologie PCB multicouches quelles que soient les frontières (2015)

National audience
ChemInform Abstract: Syntheses with Nitriles. Part 74. 3‐Amino‐4,4‐dicyano‐3‐butenoate, a Synthetically Useful Dimer from Malononitrile and Cyanoacetate. (1986)

Abstract Reaction of (I) with (II) yields the title compounds (III), which are the starting materials for the syntheses of various other compounds (IV)‐(XII).