gebhart/patrepeval huggingface dataset:
Cross-Database Facial Expression Recognition Based on Fine-Tuned Deep Convolutional Network (2017)

Facial expression recognition is a very important research field to understand human emotions. Many facial expression recognition systems have been proposed in the literature over the years. Some of these methods use neural network approaches with deep architectures to address the problem. Although it seems that the facial expression recognition problem has been solved, there is a large difference between the results achieved using the same database to train and test the network and the cross-database protocol. In this paper, we extensively investigate the performance influence of fine-tuning with cross-database approach. In order to perform the study, the VGG-Face Deep Convolutional Network model (pre-trained for face recognition) was fine-tuned to recognize facial expressions considering different well-established databases in the literature: CK+, JAFFE, MMI, RaFD, KDEF, BU3DFE, and AR Face. The cross-database experiments were organized so that one of the databases was separated as test set and the others as training, and each experiment was ran multiple times to ensure the results. Our results show a significant improvement on the use of pre-trained models against randomly initialized Convolutional Neural Networks on the facial expression recognition problem, for example achieving 88.58%, 67.03%, 85.97%, and 72.55% average accuracy testing in the CK+, MMI, RaFD, and KDEF, respectively. Additionally, in absolute terms, the results show an improvement in the literature for cross-database facial expression recognition with the use of pre-trained models.
The Turbulent Wake of a Body of Revolution (1968)

The wake behind a six-to-one spheroid was studied for a Reynolds number equal to 2.75 × 106 at 12 sections from 0.25 dia upstream to 18 dia downstream from the stern of the body. The flow pattern was determined and an analytical expression was derived to express the manner in which the mean characteristics of the wake develop in the established flow region. The Reynolds stresses were measured throughout the flow and their magnitudes were checked through the momentum and mean-energy equations.
Signal acquisition and tracking with adaptive arrays in the digital mobile radio system IS-54 with flat fading (1993)

The author considers the dynamic performance of adaptive arrays in wireless communication systems. With an adaptive array, the signals received by multiple antennas are weighted and combined to suppress interference and combat desired signal fading. In these systems, the weight adaptation algorithm must acquire and track the weights even with rapid fading. The author considers the performance of the least-mean-square (LMS) and direct matrix inversion (DMI) algorithms in the North American digital mobile radio system IS-54. He shows that implementation of these algorithms permits the use of coherent detection, which improves performance by 1 dB over differential detection. Results for two base station antennas with flat Rayleigh fading show that the LMS algorithm has large tracking loss for vehicle speeds above 20 mph, but the DMI algorithm can acquire and track the weights to combat desired signal fading at vehicle speeds up to 60 mph with less than 0.2 dB degradation from ideal performance with differential detection. Similarly, interference is also suppressed with performance gains over maximal ratio combining within 0.5 dB of the predicted ideal gain.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Physics and applications of LC photo-alignment: Recent results (1997)

The photo-aligning of LC layers by UV-illumination seems to provide a new advanced technology for all types of LCDs, especially AM-LCDs. Recently certain new results were obtained, which based ont eh extensions of the photo- aligning materials to the common classes of polymer aligning agents, such as polyimides, polysiloxanes etc. Pretilt angles on the substrates were definitely obtained, which enable to fabricate STN and AM-LCDs with large surface areas. The progress in application of LC photo-aligning for LCDs stimulates a fundamental research in the field. We will consider UV-illumination in photoanisotropic films, such as a photo-orientation of the absorption oscillator of the molecular clusters perpendicular to the polarization vector of the UV-light and characterize this process by the specific material constants. This characterization will further enable us to define such important parameter as an anchoring energy of LC with the photoactivated substrate. We will also discuss such problems as a stability of photoaligned LC layers with respect to an external UV and IR light exposure, and will show that a certain progress in this direction was obtained. Finally we plan to review some LCD display constructions, that can be efficiently obtained by the method of UV-illumination technique.
Getting Started with Oracle BPM Suite 11gR1 - A Hands-On Tutorial (2010)

Learn from the experts - teach yourself Oracle BPM Suite 11g with an accelerated and hands-on learning path brought to you by Oracle BPM Suite Product Management team members with this book and eBook
Relationships of serum insulin-like growth factor I concentrations to growth, composition, and reproductive traits of swine1 (1995)

Insulin-like growth factor I (IGF-I) is a peptide hormone that has been shown to be involved in metabolic regulation of growth and reproduction in livestock species. The objectives of this study were to quantify concentrations of IGF-I in growing pigs and determine whether IGF-I concentration can be used as a predictor of growth, composition, and reproductive traits. Forty male and 60 female pigs, divided equally between two locations, were weighed and bled at 3-wk intervals from 6 to 21 wk of age. At each sampling, two blood samples were collected via jugular venipuncture at an interval of at least 1 h. Serum was separated and IGF-I concentration determined via RIA. Pigs were weighed at each sampling date. Backfat and longissimus muscle area were measured with the use of B-mode ultrasound and adjusted to 100 kg. Age at puberty and first-parity litter size were measured on gilts. Effects of age, sex, location, and pig within sex x location on log-transformed IGF-I concentrations were determined by analyzing data as a split-plot. Performance traits were fitted to a model including the effects of IGF-I concentration, sex, location, and interactions. The IGF-I concentrations increased (P < .05) from 3 to 18 wk of age before dropping at 21 wk of age. Concentrations increased more rapidly in males than in females and differed significantly between sexes from 12 to 21 wk of age. Repeatability of IGF-I concentration was .29 +/- .02; IGF-I concentrations of samples collected at 6 wk were not correlated with those at later ages. Correlations between IGF-I concentrations of samples at later ages ranged from .27 to .51. Heritability of IGF-I concentration was .27 +/- .07. There was a tendency for weight to be affected by a sex x age interaction (P = .09). Weight of boars exceeded weight of gilts only at 21 wk (111.4 +/- 1.1 vs 107.1 +/- .8 kg). Regressions of weight on IGF-I concentrations were positive at all ages but greatest at 6 wk. The IGF-I concentration did not affect backfat thickness, longissimus area, percentage of lean, age at puberty, or litter size.
The representation of large numbers in neural networks and its application to economical load dispatching of electric power (1989)

The fundamentals of electric power load dispatching and Hopfield networks are briefly reviewed. A method for representing large numbers in Hopfield networks is theoretically examined and then applied to the problem of economical load dispatching. Simulation of stationary and time-varying loads is discussed, and results are given. The approach is found to be superior in the ease of formalization of the problem and in its memory and computation time efficiency. It is applicable to many problems other than economical load dispatching.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
A 0.95mW/1.0Gbps Spiral-Inductor Based Wireless Chip-Interconnect with Asynchronous Communication Scheme (2005)

This paper presents a reduction method of power consumption and an asynchronous communication scheme for spiral-inductor based wireless chip-interconnect. The power reduction is achieved by utilizing positively resonance phenomena between two spiral inductors. Further, employing dynamic circuits and self pre-charging technique realizes an asynchronous communication without any clocking. The methodology was verified and evaluated by measuring a test chip in 0.18/spl mu/m 6 metal CMOS technology. The performance of 0.95 mW/1.0 Gbps/ch was achieved without any clocking.
The <i>knotted1</i> -like homeobox gene <i>BREVIPEDICELLUS</i> regulates cell differentiation by modulating metabolic pathways (2003)

Members of the KNOX gene family have important roles in plant meristems by regulating cell division and differentiation. BREVIPEDICELLUS (BP), one of seven KNOX genes in Arabidopsis, has a primary role in internode patterning. We carried out a comparison of RNA expression profiles between wild-type seedlings and bp mutants at a developmental stage prior to a visible phenotypic difference. Transcript differences were found for a number of genes in cell wall biosynthesis, especially genes in the lignin pathway. The regulation of lignin biosynthesis by BP was demonstrated by observing increased lignin deposition in bp mutants following bolting, decreased lignification in plants overexpressing BP, and aberrant lignin deposition in discrete regions of the bp stem. Furthermore, we showed that BP binds promoters of some genes in the lignin pathway. Our results provide a metabolic fingerprint for BP and identify the lignin pathway as one of the coordinate processes that BP regulates.
Jacketed air-clad cladding pumped ytterbium-doped fibre laser with wide tuning range (2001)

A tunable cladding-pumped ytterbium-doped fibre laser is presented. An air-clad inner cladding supported by a micro-structured silica mesh inside a silica jacket is used. A measured inner-cladding NA of 0.4 to 0.5 enables efficient pump launch into a 36 µm-diameter inner cladding. The small inner cladding area enables tuning from 1010 to 1120 nm.
Failure mode and effects analysis using grey theory (2001)

Conventional FMEA determines a risk priority number by multiplying the scores of three factors. However, the scores are obtained from subjective linguistic assessment, and the relative importance of factors is not considered. To improve the effectiveness, this study applies the grey theory to the failure mode and effects analysis. The results show that grey theory is much easier and more unbiased than traditional FMEA, and it can enhance product reliability and process stability by discovering potential problems during the stages of the product design and process planning.
Tensile Strength Reduction of Mortar and Concrete Dut to Moisture Gradients (1972)

First Name is required invalid characters Last Name is required invalid characters Email Address is required Invalid Email Address Invalid Email Address
Construction of a 3D mammary duct based on spatial localization of the extracellular matrix (2018)

Extracellular matrix (ECM)-based hydrogels can serve as scaffolds in reconstruction of physiologically relevant three-dimensional (3D) in vitro models. Biocompatible or integrated hydrogels can be used to modulate ECM properties such as stiffness and composition for studies of cell−ECM interactions and morphogenesis. To this end, we developed a new type of spatially modified collagen type 1 hydrogel by convective addition of collagen type 1 solution. The matrix displayed properties that were distinct from those of a collagen type 1 hydrogel and recapitulated the morphology and function of mammary epithelium in a 3D microfluidic platform. In this ECM, mammary epithelial cells secreted laminin and exhibited self-assembly into a basement membrane. Thus, this spatially modified ECM offers biophysical features that can facilitate the construction of mammary epithelium and, by extension, that of various other epithelial types. Additionally, our reconstructed mammary duct can be used as an in vitro model for the study of early-stage breast cancer. In this study, we present a new type of spatially modified ECM composed of type 1 collagen whose properties differ from those of a collagen matrix. Using this ECM, we developed a stable human mammary epithelium with a lumen structure that exhibited a barrier function in a microfluidic platform, produced laminin, and formed a basement membrane. This reconstructed mammary duct can serve as a model for investigating breast cancer and may be adapted to other types of epithelium for in vitro studies. A biomaterial that mimics human mammary ducts has been developed by scientists in South Korea and could be used to investigate early-stage breast cancer. Hydrogels are networks of polymer molecules that have a physical texture similar to that of the extracellular matrix surrounding and supporting cells in the human body, making them ideal scaffolds for building artificial tissue. Seok Chung from Korea University in Seoul, Su Hyun Lee from the Seoul National University Hospital and their co-workers made a hydrogel with the structure of mammary ducts using collagen, and then deposited mammary epithelial cells throughout it. The hydrogel was incorporated into a microfluidic device, providing a way of introducing the various biological components found in a natural extracellular matrix into it, and thereby a method to test how these components interact with the cells.
Tracking changes in language (2005)

One problem that has arisen in recent years is the extraction of useful information from changes in a data stream including natural language. Statistical tests on single word occurrences can reveal many apparent differences. Understanding the reasons behind such changes in the data requires methods for discovering structure within the entire set of individual changed items. This work presents a methodology for understanding how a language model has altered based on utterance clustering and statistical tests on individual features. It further examines clustering of lexical items via profiles of changes in association scores. A machine using an analysis package based on these techniques can isolate novel portions of the data stream. Human inspection of such data then readily determines the nature of the observed change. We investigate several variants of this analysis upon data drawn from an automated call center.
Laboratory Methods for the Analysis of Microplastics in the Marine Environment: Recommendations for quantifying synthetic particles in waters and sediments. (2015)

This document is a methods manual for measuring microplastic in the environment. This manual outlines step-by-step instructions for quantifying microplastic in marine environmental samples, including processes to streamline terminology and approaches. The methods described here were determined after careful study and laboratory work conducted through a grant from the NOAA Marine Debris Program to the University of Washington, Tacoma. Project goals sought to streamline the terminology and techniques used to assess microplastic concentrations in marine environmental samples, and to develop laboratory procedures to quantify microplastic particles in marine surface waters and bed sediments, as well as personal care products. An overarching aim was to provide scientists and educators with simple techniques that are reproducible and robust without requiring extensive equipment, and to describe a method that could be easily adopted by groups around the world. Depending on the study aims and environmental collection techniques, these techniques can be used to calculate concentrations of microplastics using a variety of metrics, including per piece, per mass, or per volume. Considering metrics is important for comparing results with other researchers. For guidelines and considerations when conducting microplastic analyses, as well as calculations, see the appendices.
Body composition in premanifest Huntington’s disease reveals lower bone density compared to controls. (2011)

Huntington's disease (HD) is a debilitating autosomal dominant, neurodegenerative disease with a fatal prognosis. Classical features include motor disturbances, dementia and psychiatric problems but are not restricted to this triad as patients often experience other abnormalities such as unintended weight loss, the exact cause of which is unknown. We studied the body composition of 25 premanifest HD and compared it to 25 control subjects using a dual energy x-ray absorptiometer (DEXA) scan. Like the R6/2 transgenic mouse model, we identified significantly lower bone mineral density z-scores in premanifest individuals, that was not related to any difference in testosterone, cortisol, leptin or Vitamin D levels. These results identify an early gene-related change that occurs in HD which not only could lead to a potential biomarker for the disease, but given it is also seen in other manifest neurodegenerative diseases, could also reveal a common disease related process.
µ-Oxo-triruthenium carboxylate complexes (1972)

The green complex formed on treating commercial ruthenium trichloride hydrate with acetic acid and sodium acetate in ethanol is shown to be of the basic acetate oxo-centred triangular type with the formula [Ru3O(CO2Me)6-(H2O)3](CO2Me). The complex may be cationic, neutral, or anionic depending on the pH of the solution, owing to ionisation of co-ordinated water. The water molecules may be replaced by pyridine to give [Ru3O(CO2Me)6py3]+. Both the aquo and pyridine complexes undergo successive one and two electron reductions to give complexes in which the metal atoms are in formal oxidation states + 2 ⅔ or (III, III, II) and +2 or (II, II, II) respectively. The reduction to the latter state involves loss of the central oxygen atom from the triangle of metal atoms; this atom may be reinserted using molecular oxygen, or more specifically by use of a reagent such as pyridine-N-oxide. In the presence of triphenylphosphine, [Ru3O(CO2Me)(H2O)3]+ gives the reduced species Ru3O(CO2Me)6(PPh3)3. The potentials and reversibility of the redox reactions have been studied electrochemically. Analogous complexes of other carboxylic acids are described. N.m.r., i.r., and electronic absorption spectra of the species are reported.
Performance improvement of deep learning based gesture recognition using spatiotemporal demosaicing technique (2016)

We propose a novel method for the demosaicing of event-based images that offers substantial performance improvement of far-distance gesture recognition based on deep Convolutional Neural Network. Unlike the conventional demosaicing technique using the spatial color interpolation of Bayer patterns, our new approach utilizes spatiotemporal correlation between pixel arrays, whereby timestamps of high-resolution pixels are efficiently generated in real-time from the event data. In this paper, we describe this new method and evaluate its performance with a hand motion recognition task.
Dynamic material properties and terminal ballistic behaviour of shock-loaded silicon-nitride ceramics (1994)

The dynamic properties and microscopic material structure of shock loaded Silicon-Nitride ceramics of two different densities have been investigated by means of the planar plate impact and VISAR technique. In addition the terminal ballistic behaviour of both ceramics has been determined. The combined results of the tests performed suggest an important influence of the microstructure on the terminal ballistic behaviour and thus on the ceramics protection capability against impact processes.
Removal of Mercury from Waste Water: Large-Scale Performance of an Ion Exchange Process (1992)

Duolite™ GT-73 ion exchange resin routinely reduces the mercury content of a waste water stream to less than the permitted level of 10 ppb. Effluent concentrations from the ion exchange facility (IEF) are consistently between 1 to 5 ppb, even though the feed contains a varying concentration of mercury (0.2 to 70 ppm). Two operational problems have been encountered at that facility, however. Firstly, the stated capacity of the resin for mercury was not being achieved. The abnormally low capacity was traced to analytical laboratory waste which was intermittently treated by the resin. That waste contained hydrochloric acid, stannous chloride, and potassium permanganate, among other chemicals, which presumably eluted sorbed mercury from the resin and also oxidized the thiol (SH) functional groups on the resin and rendered them inactive. The net effect was that the resin had to be replaced more frequently than anticipated. Secondly, the IEF was temporarily shut down because the mercury content of the waste water could not be reduced to below the permitted level, even with fresh resin. That problem was caused by slow settling solids composed mainly of iron which apparently adsorbed some of the mercury and allowed it to pass through the resin untreated. The solids were presumably a result of processing waste water abnormally high in iron which may have co-precipitated with mercury and other elements in the feed and caused a residual buildup of solids throughout the IEF. The problem was remedied by installing a 0.2 µm cartridge filter between the feed tank and the columns.
Model-based synthesis of a real-time image processing system (2002)

MIRTIS is an environment which employs model-based synthesis techniques to generate real-time image processing applications. The system is capable of creating very high performance implementations of a large class of image processing computations. It automatically data parallelizes the computations using the split-and-merge processing model and executes them on a parallel hardware architecture, a network of C40 DSPs. MIRTIS provides a high level programming interface which masks the complexities of the underlying parallel implementation. Graphical tools are used for building models and controlling the running applications.
Analogs of Pteroylglutamic Acid. VII. 2-Alkylamino Derivatives (1951)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnalogs of Pteroylglutamic Acid. VII. 2-Alkylamino DerivativesBarbara Roth, James M. Smith Jr., and Martin E. HultquistCite this: J. Am. Chem. Soc. 1951, 73, 6, 2864–2868Publication Date (Print):June 1, 1951Publication History Published online1 May 2002Published inissue 1 June 1951https://pubs.acs.org/doi/10.1021/ja01150a130https://doi.org/10.1021/ja01150a130research-articleACS PublicationsRequest reuse permissionsArticle Views236Altmetric-Citations26LEARN 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