gebhart/patrepeval huggingface dataset:
Feature selection and adaptive threshold for automated cavitation detection in hydroturbines (2016)

Hydroturbines produce 6.3% of all electrical generation and 48% of renewable energy in the United States of America. While hydro power plants have existed for well over 100 years, cavitation damage on hydroturbine runners remains as an expensive problem that reduces power production and shortens the life of the turbine. Hydroturbine operators who wish to perform cavitation detection and collect intensity data for estimating the remaining useful life (RUL) of the turbine runner face several practical challenges related to long term cavitation detection. This thesis presents both a method for comparing and evaluating cavitation detection features as well as a method for creating adaptive cavitation thresholds and automating the cavitation detection process. The method for cavitation feature selection can be used to quickly compare features created from cavitation survey data collected on any type of hydroturbine, sensor type, sensor location, and cavitation sensitivity parameter (CSP). Although the cavitation feature selection process is based on manual evaluation and knowledge of hydroturbine cavitation, the use of principal component analysis greatly reduces the number of plots that require evaluation. A case study based on data taken from a production hydroturbine is used to demonstrate the method and the results provide a clear ranking of the preferred sensors, sensor placements, and CSPs for the hydroturbine - thus demonstrating the usefulness of the method. The the second method presented in this thesis addresses several challenges encountered when detecting cavitation for long periods of time { a prerequisite to developing a datadriven method for estimating cavitation erosion rates. First, adaptive cavitation thresholds are generated by collecting sensor data from a hydroturbine ramp-down, then creating CSPs from the data and calculating the Mahalanobis distance (MD) to create clear separation between the healthy running state and conditions where the hydroturbine is experiencing cavitation. Next, in order to automate the cavitation detection process, the cavitation threshold is used to create class labels for the ramp-down data which is then used to train a supervised learning algorithm for classifying cavitation from sensor data. Although domain knowledge is still required to select appropriate CSPs, the remainder of the process can be automated by applying unsupervised learning to label the training set. This method is also demonstrated utilizing data collected on production hydroturbines in a power plant environment. The results of the case studies indicate that the fully automated process for selecting cavitation thresholds and classifying cavitation performed well when compared to manually selected thresholds. Our methods provide hydroturbine operators and researchers with a clear and eective way to perform automated cavitation detection while also laying the groundwork for determining RUL in the future.
Time‐lapse seismic study of levees in southern New Mexico (2006)

The primary objective of this work was to measure changes in compressional‐ (Vp) and shear‐wave (Vs) velocities in an earthen levee during a ponding experiment designed to simulate flood conditions on the Rio Grande in south New Mexico. Although similar to such experiment, performed an year earlier on the Rio Grande in south Texas, the levee seismic response results are different. This work was similar to previous Preliminary testing at three levee sites, all within a 1 km radius and each with unique physical, EM, and core characteristics, was completed and a single low‐conductivity, highly fractured site was selected for investigation. Several different types of seismic data were recorded. Seismic data analysis techniques appraised included P‐ refraction tomography and Rayleigh surface‐wave analysis using multichannel analysis of surface waves (MASW). P‐wave velocity change (decrease) was rapid and isolated to one section within the pool confines, which already had anomalously high velocity most likely related to burrowing animals modification of the levee structure. S‐wave velocity change was gradual and could be observed along the whole width of the pond within and below the levee. The results within the levee sand core were consistent with the observations of sand S‐wave velocity changed due to saturation.
Relationships between Fabric Formability, Bias Extension and Shear Behaviour of Outerwear Materials (2000)

This paper investigates the relationships between fabric formability (a fundamental measure of fabric tailorability), bias extension and shear resistance. The experimental investigation has been performed on a range of thirty-one (fifteen pure wool, twelve wooVpolyester blends, one wooVrayon blend and three pure linen) suiting and trousering materials varying in mass per unit area from 125 to 258 g/m 2 . Low stress mechanical properties measurements of fabric bending, shear and tensile deformations were obtained using the KES (Kawabata Evaluation System) testers. Furthermore, the 45-degree bias extension behaviour of these fabrics was measured using an Instron extensometer. Following Spivak and Treloar's analysis [12], the bias load-extension and recovery curves were analysed to obtain equivalent shear stress/strain hysteresis curves. The two measures of shear rigidity, one obtained from the KES shear hysteresis curves and the other calculated from the bias extension tests, have been compared for the series of 31 fabrics. Relationships between fabric formability (defined as the product of tensile extensibility under low load and the bending rigidity) and its shear resistance are analysed. In addition, the work also covers the investigation on the relationships between fabric shear properties and formability in bias direction.
Purification of phosphatidylglycerophosphate synthase from Chinese hamster ovary cells (2001)

Phosphatidylglycerophosphate (PGP) synthase catalyses the committed step in the biosynthesis of phosphatidylglycerol and cardiolipin in mammalian cells. Recently we isolated a Chinese hamster ovary (CHO) PGS1 cDNA encoding PGP synthase. In the present study we purified this PGP synthase to near-homogeneity from the mitochondrial fraction of CHO-K1 cells; the final enzyme preparation gave a single 60kDa protein on SDS/PAGE. Polyclonal antibodies raised against a recombinant CHO PGS1 protein cross-reacted with the purified 60kDa protein and with CHO membrane proteins of 60kDa and 62kDa that increased after transfection with the PGS1 cDNA. The 60 and 62kDa protein levels in a PGP synthase-defective mutant of CHO-K1 cells were markedly lower than those in CHO-K1 cells. These results indicated that the purified 60kDa protein was PGP synthase encoded by the PGS1 gene. In addition we found that the purified PGP synthase had no PGP phosphatase activity, indicating that phosphatidylglycerol was produced from CDP-diacylglycerol through two steps catalysed by distinct enzymes, PGP synthase and PGP phosphatase.
IN THE UNITED STATES COURT OF APPEALS FOR THE THIRD CIRCUIT (1999)

BRIEF OF THE EQUAL EMPLOYMENT ADVISORY COUNCIL AS AMICUS CURIAE IN SUPPORT OF APPELLANTS AND IN SUPPORT OF REVERSAL _____________________________________________________________ HEATHER L. MacDOUGALL ANN ELIZABETH REESMAN EMPLOYMENT LAW Counsel of Record AFFILIATES, LLC McGUINESS, NORRIS & 3352 Roundtree Estates Ct. WILLIAMS, LLP Falls Church, VA 22042 1015 Fifteenth St., N.W. (703) 206-9560 Suite 1200 Washington, D.C. 20005 (202) 789-8600
A Novel Authentication and Key Agreement Scheme for Implantable Medical Devices Deployment (2017)

Implantable medical devices (IMDs) are man-made devices, which can be implanted in the human body to improve the functioning of various organs. The IMDs monitor and treat physiological condition of the human being (for example, monitoring of blood glucose level by insulin pump). The advancement of information and communication technology enhances the communication capabilities of IMDs. In healthcare applications, after mutual authentication, a user (for example, doctor) can access the health data from the IMDs implanted in a patient's body. However, in this kind of communication environment, there are always security and privacy issues, such as leakage of health data and malfunctioning of IMDs by an unauthorized access. To mitigate these issues, in this paper, we propose a new secure remote user authentication scheme for IMDs communication environment to overcome security and privacy issues in existing schemes. We provide the formal security verification using the widely accepted Automated Validation of Internet Security Protocols and Applications tool. We also provide the informal security analysis of the proposed scheme. The formal security verification and informal security analysis prove that the proposed scheme is secure against known attacks. The practical demonstration of the proposed scheme is performed using the broadly accepted NS2 simulation tool. The computation and communication costs of the proposed scheme are also comparable with the existing schemes. Moreover, the scheme provides additional functionality features, such as anonymity, untraceability, and dynamic implantable medical device addition.
Motion characterization by temporal slices analysis (2002)

This paper describes an approach to characterize camera and object motions based on the analysis of spatio-temporal image volumes. In the spatio-temporal slices of image volumes, motion is depicted as oriented patterns. We propose a tensor histogram computation algorithm to represent these patterns. The motion trajectories in a histogram are tracked to describe both the camera and object motions. In addition, we exploit the similarity of the temporal slices in a volume to reliably partition a volume into motion tractable units.
Delusions of progress: A case for reconceptualising environmental education (1995)

The great modem project that was bent on using technology to improve the human condition through the control of nature has not worked out as its earlier proponents once promised. By assuming that economic growth and technological progress are ways to a cleaner environment and social equality, humanity has created unprecedented social and environmental problems. The more we exercise power over nature, the less predictable and resilient nature has become. The more wealth we produce, the wider the economic gap between rich and poor. But few would argue that ecological damage is, primarily, the fault of technology: It is first and foremost a crisis of mind which makes it a crisis for those institutions which purport to improve minds. This is a crisis of education ... (Orr, 1994). Broadly responding to the theme of this conference, this paper critically examines the 'crisis of education'. I begin by reflecting on my own limited experience of teaching in Africa, not to claim any legitimacy for speaking on behalf of (South) Africa but in an attempt to unmask my own (past?) naive complicity in the 'crisis of education'. A brief analysis of 'progress' and the dynamics of 'globalisation' serves to illustrate the complexity, uncertainty and change in modem society which necessitate a continual and reflexive testing of new paradigms for environmental education. One such paradigm is a socially critical pedagogy which is inherently interdisciplinary and which is advanced as a transformative learning process promoting teachers' own well-being. I then propose, tentatively, a way of locating this paradigm within a more general theory that draws on recent understanding of the dynamics of complexity and disorder and reveals the world as sensitive, fragile and unpredictable. This is the theory of chaos, a core concept of which is the notion of an 'attractor' that may be used as a metaphor for establishing a new benchmark of confidence for environmental educators to counter the dominant metaphor of progress, the laplacian dream of discovering the deterministic rules that enable us to predict and control the future. The issues raised in this paper are of interest to the author's research and teaching, a distance learning MAin Environmental Education through Action Enquiry at Nottingham Trent Unversity, UK, with Roger Firth. ... the idea of great progress is a delusion,along with the idea that the truth will ultimately be known. (Wittgenstein, 1980) Progress might have been alright once, but it's gone on too long. (Ogden Nash, quoted by Provine, 1988)
Geology of the Gladys McCall Geopressured-Geothermal Prospect, Cameron Parish, Louisiana (1988)

The Gladys McCall prospect lies at the western edge of the Rockefeller Wildlife Refuge about 88 km (55 mi) southeast of Lake Charles in Cameron Parish, Louisiana. The test well is 4825 m (15,831 ft) deep and was drilled in 1981 under the U. S. Department of Energy geopressured-geothermal research program. The well was shut in at the end of October 1987 after it had produced over 27 million barrels of brine and 676 MMscf gas, without any significant pressure decline. The stratigraphic section seen in this test well consists of alternating sandstones and shales with about 350 m (1150 ft) of net sand between 4393 m (14,412 ft) and 4974 m (16,320 ft). The producing reservoir is bounded on the north and south by faults. The east-west dimension is poorly defined due to lack of deep well control. Eleven prospective production zones have been identified. The pressure maintenance and the continuous high brine yield from the reservoir may be due to laterally overlapping and connected sandstones, communication between overlying and/or underlying reservoirs, growth faults acting as passageways for brine, shale dewatering, or possible communication of zones behind the casing.
Scaffold-mediated lentiviral transduction for functional tissue engineering of cartilage (2014)

The ability to develop tissue constructs with matrix composition and biomechanical properties that promote rapid tissue repair or regeneration remains an enduring challenge in musculoskeletal engineering. Current approaches require extensive cell manipulation ex vivo, using exogenous growth factors to drive tissue-specific differentiation, matrix accumulation, and mechanical properties, thus limiting their potential clinical utility. The ability to induce and maintain differentiation of stem cells in situ could bypass these steps and enhance the success of engineering approaches for tissue regeneration. The goal of this study was to generate a self-contained bioactive scaffold capable of mediating stem cell differentiation and formation of a cartilaginous extracellular matrix (ECM) using a lentivirus-based method. We first showed that poly-L-lysine could immobilize lentivirus to poly(ε-caprolactone) films and facilitate human mesenchymal stem cell (hMSC) transduction. We then demonstrated that scaffold-mediated gene delivery of transforming growth factor β3 (TGF-β3), using a 3D woven poly(ε-caprolactone) scaffold, induced robust cartilaginous ECM formation by hMSCs. Chondrogenesis induced by scaffold-mediated gene delivery was as effective as traditional differentiation protocols involving medium supplementation with TGF-β3, as assessed by gene expression, biochemical, and biomechanical analyses. Using lentiviral vectors immobilized on a biomechanically functional scaffold, we have developed a system to achieve sustained transgene expression and ECM formation by hMSCs. This method opens new avenues in the development of bioactive implants that circumvent the need for ex vivo tissue generation by enabling the long-term goal of in situ tissue engineering.
Regulation of dominant follicle turnover during the oestrous cycle in cows (1993)

The effect of progestin and luteinizing hormone (LH) pulse frequency on dynamics of dominant follicle growth during the first follicular wave after oestrus was examined in non-lactating Holstein cows by ultrasonography. On day 8 of the cycle, cows (n = 8) received a luteolytic dose of prostaglandin F2 alpha (PGF2 alpha; 25 mg) and an ear implant of Norgestomet (6 mg). On day 18, cows were assigned to a crossover design in which the implants were retained (T1) or replaced with a new implant (T2). All implants were removed on day 23. After oestrus, cows underwent a normal intervening oestrus cycle. On day 8 of the third cycle, T1 and T2 were reversed among cows. Ultrasonography and blood sampling were performed on alternate days throughout the experiment. On days 10 and 19 of the third cycle, blood was sampled every 15 min for 8 h in concert with an additional control group (n = 3) sampled on day 10 of the cycle. Progesterone concentration on day 8 before PGF2 alpha was 6.5 +/- 0.5 ng ml-1. Dominance of the first wave dominant follicle was extended beyond day 18 in 15 of 16 cows for T1 and T2 periods. The original dominant follicle ovulated in five of eight T1 and none of eight T2 periods (P < 0.01). New dominant follicles were detected on day 24 +/- 1 in T1 (n = 3) and on day 20.6 +/- 1 in T2 (n = 8; P < 0.01) cows.(ABSTRACT TRUNCATED AT 250 WORDS)
Adaptive design of digital filters (2005)

In this paper, we present a novel technique for the design of FIR and IIR digital filters. The design approach begins with the specification of a discrete set of arbitrary magnitude and phase characteristics which describe a desired filter response. These frequency domain characteristics are used to create an ideal "pseudo-filter" whose impulse response is unknown and possibly non-causal, but whose input/output characteristics can be determined for a finite sum of sinusoids. Time-domain techniques common to adaptive system identification are then used to identify a realizable FIR or IIR digital filter which best matches the pseudo-filter. The advantages of this method include the ability to specify response at arbitrarily-spaced frequencies, to use arbitrary cost weighting, and to apply (possibly non-linear) constraints to the range of the filter coefficients.
Absorption of Ultrashort Laser Pulses by Solid Targets Heated Rapidly to Temperatures 1–1000 eV (1995)

We report measurements of laser absorption for high-contrast ultrashort pulses on a variety of solid targets over an intensity range of ${10}^{13}$ to ${10}^{18}$ W/ ${\mathrm{cm}}^{2}$. These data give an experimental determination of the target energy content and an indirect measure of dense plasma electrical conductivity. Our calculations accurately reproduce the behavior of aluminum targets, while the other materials show signs of additional absorption mechanisms. At high intensity all target materials reach a ``universal plasma mirror'' state and reflect about 90% of the incident light.
A new route to produce starch‐based fiber mesh scaffolds by wet spinning and subsequent surface modification as a way to improve cell attachment and proliferation (2009)

This study proposes a new route for producing fiber mesh scaffolds from a starch-polycaprolactone (SPCL) blend. It was demonstrated that the scaffolds with 77% porosity could be obtained by a simple wet-spinning technique based on solution/precipitation of a polymeric blend. To enhance the cell attachment and proliferation, Ar plasma treatment was applied to the scaffolds. It was observed that the surface morphology and chemical composition were significantly changed because of the etching and functionalization of the fiber surfaces. XPS analyses showed an increase of the oxygen content of the fiber surfaces after plasma treatment (untreated scaffolds O/C:0.32 and plasma-treated scaffolds O/C:0.41). Both untreated and treated scaffolds were examined using a SaOs-2 human osteoblast-like cell line during 2 weeks of culture. The cell seeded on wet-spun SPCL fiber mesh scaffolds showed high viability and alkaline phosphatase enzyme activity, with those values being even higher for the cells seeded on the plasma-treated scaffolds.
Source-optic-crystal optimization for compact monochromatic imaging (2004)

A compact monochromatic imaging system was designed with an optimal combination of a low power molybdenum source, collimating optic and monochromatizing crystal. The microfocus source was characterized for spot size, source depth, source intensity and source uniformity. Two different polycapillary collimating optics were characterized for collecting radiation from the low power divergent source and redirecting it into a parallel beam. The focal distance, transmission with respect to energy, output uniformity and exit angle divergence were measured. Monochromatization was then achieved by diffraction from a variety of single crystals. For each crystal, the rocking curve width was measured. To predict the actual resolution for the monochromatic imaging, a theoretical 3-dimension resolution calculation was developed. The measured angular resolutions for the horizontal and vertical directions were slightly different and were in good agreement with theoretical values. The measured and theoretical intensity after monochromator crystals showed the expected trade-off between high intensity and high resolution.
Update of the European guidelines for basal cell carcinoma management (2014)

The guidelines offer a useful tool that will help dermatologists to select the most appropriate treatment for individual patients.
The Rapid Design System: memory-driven feature-based design (1991)

A CAD system based on feature-based design is discussed. Feature-based design is an attempt to establish a higher level of representation, i.e., primitives (features) which have meaning and are interpretable by both the design system and the designer. A feature can refer to any technical or economic aspect of a product's representation or any attribute of the forming process and/or finished product. Features which are typically associated with a product dictate: function, form, material, dimension, tolerance, datum, fabrication process, surface finish, inspection process, etc. The Rapid Design System (RDS), a feature-based design system which takes advantage of an associative memory for storage and retrieval of past design experiences, is discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Recovery and maintenance of nephrin expression in cultured podocytes and identification of HGF as a repressor of nephrin (2007)

Cultured podocytes easily lose expression of nephrin. In this report, we developed optimum media for recovery and maintenance of nephrin gene expression in murine podocytes. Using reporter podocytes, we found that activity of the nephrin gene promoter was enhanced by DMEM/F12 or alpha-MEM compared with RPMI-1640. In any of these basal media, addition of 1,25-dihydroxyvitamin D(3), all-trans-retinoic acid or dexamethasone significantly increased activity of the nephrin promoter. The effects of the supplemental components were synergistic, and the maximum activation was achieved by DMEM/F12 supplemented with three agents. This culture medium was designated as vitamin D(3), retinoic acid and dexamethasone-supplemented DMEM/F12 (VRADD). In reporter podocytes that express nephrin, VRADD induced activation of the nephrin gene promoter up to 60-fold. Even in podocytes that have lost nephrin expression during multiple passages, expression of nephrin mRNA was dramatically recovered by VRADD. However, VRADD caused damage of podocytes in prolonged cultures, which was avoided in the absence of dexamethasone (designated as VRAD). VRAD maintained expression of nephrin for extended periods, which was associated with the differentiated phenotype of podocytes. Using the VRAD-primed podocytes, we revealed that expression of nephrin mRNA as well as nephrin promoter activity was suppressed by a putative dedifferentiation factor of podocytes, hepatocyte growth factor.