gebhart/patrepeval huggingface dataset:
Filtering Global History: Power and Performance Efficient Branch Predictor (2009)

In this paper we present an Application Customizable Branch Predictor, ACBP, that delivers efficiency in energy savings and performance without compromising prediction accuracy. The idea of our technique is to filter unnecessary global history information within the global history register to minimize the predictor size while maintaining prediction accuracy. We suggest in this work an efficient algorithm to capture the beneficial correlations. A cost-efficient and programmable hardware architecture is presented. Extensive experimental analysis confirms significant improvements in power savings and latency, ranging up to 84% and 30%,respectively.
A Novel Technique for Efficient Text Document Summarization as a Service (2013)

Due to an exponential growth in the generation of web data, the need for tools and mechanisms for automatic summarization of Web documents has become very critical. Web data can be accessed from multiple sources, for e.g. on different Web pages, which makes searching for relevant pieces of information a difficult task. Therefore, an automatic summarizer is vital towards reducing human effort. Text summarization is an important activity in the analysis of a high volume text documents and is currently a major research topic in Natural Language Processing. It is the process of generation of the summary of an input document by extracting the representative sentences from it. In this paper, we present a novel technique for generating the summarization of domain specific text from a single Web document by using statistical NLP techniques on the text in a reference corpus and on the web document. The summarizer proposed generates a summary based on the calculated Sentence Weight (SW), the rank of a sentence in the document's content, the number of terms and the number of words in a sentence, and using term frequency in the input corpus.
Non-Coding RNAs at the Gnas and Snrpn-Ube3a Imprinted Gene Loci and Their Involvement in Hereditary Disorders (2012)

Non-coding RNAs (ncRNAs) have long been recognized at imprinted gene loci and provided early paradigms to investigate their functions and molecular mechanisms of action. The characteristic feature of imprinted genes, their monoallelic, parental-origin-dependent expression, is achieved through complex epigenetic regulation, which is modulated by ncRNAs. This minireview focuses on two imprinted gene clusters, in which changes in ncRNA expression contribute to human disorders. At the GNAS locus loss of NESP RNA can cause autosomal dominant Pseudohypoparathyroidism type 1b (AD-PHP-Ib), while at the SNRPN-UBE3A locus a long ncRNA and processed snoRNAs play a role in Angelman-Syndrome (AS) and Prader-Willi-Syndrome (PWS). The ncRNAs silence overlapping protein-coding transcripts in sense or anti-sense orientation through changes in histone modifications as well as DNA methylation at CpG-rich sequence motifs. Their epigenetic modulatory functions are required in early development in the pre-implantation embryo or already in the parental germ cells. However, it remains unclear whether the sequence homology-carrying ncRNA itself is required, or whether the process of its transcription through other promoters causes the silencing effect.
Transthoracic and transesophageal echocardiography pre and post percutaneous mitral catheter balloon valvulotomy. (1994)

Catheter balloon valvulotomy (CBV) is useful in the relief of rheumatic mitral stenosis. Morphologic scoring of the mitral valve by transthoracic echocardiography is predictive of success with CBV. Horizontal plane transesophageal echocardiography can obtain high quality images of the mitral valve and left atrium, but its value with routine use in the pre and post CBV setting is unknown. We prospectively examined 14 patients with mitral stenosis, pre and post CBV, noting scores, complications of mitral stenosis, and complications of CBV. Mitral valve scoring was similar by TTE and TEE pre and post CBV, but TEE did tend to underestimate scores pre CBV. There was a single thrombus, it was detected only by TEE. Post CBV, both TTE and TEE detected one of two torn chordae. Of three patients with ASD's by colour flow mapping, TTE and TEE each detected two. Increases in mitral insufficiency post CBV were seen equally frequently by TTE and TEE. The increases appeared to be of a higher grade (NS) by TEE. TTE and TEE yielded complementary findings, pre and post CBV. Other than for the detection of thrombi through, the net clinical contribution of routine use of TEE appears small, and large series would be needed to establish its contribution.
Understanding Lockups: Effects in Bankruptcy and the Market for Corporate Control (2000)

This Article examines the effects of lockups in the market for corporate control and bankruptcy. Developments in the analysis of lockups in the market for corporate control have provided prescriptions that are accurate from either an ex ante or ex post perspective. This Article employs auction theory to articulate a synthesis of the current theory that is satisfactory from both perspectives. Theory addressing lockups in bankruptcy is unsatisfactory from both an ex ante and ex post context. By delineating the crucial differences between bankruptcy and the market for corporate control, this Article develops appropriate standards for governing lockups in bankruptcy.
A Facile Synthesis of Fluoroalkylisoxazoles (1985)

Fluorinated isoxazoles are synthesized from aromatic nitrile oxides and methyl perfluoro-2-alkynoates.
An Ordered Lasso and Sparse Time-Lagged Regression (2015)

We consider regression scenarios where it is natural to impose an order constraint on the coefficients. We propose an order-constrained version of <i>ℓ</i> <sub>1</sub>-regularized regression (Lasso) for this problem, and show how to solve it efficiently using the well-known Pool Adjacent Violators Algorithm as its proximal operator. The main application of this idea is to time-lagged regression, where we predict an outcome at time <i>t</i> from features at the previous <i>K</i> time points. In this setting it is natural to assume that the coefficients decay as we move farther away from <i>t</i>, and hence the order constraint is reasonable. Potential application areas include financial time series and prediction of dynamic patient outcomes based on clinical measurements. We illustrate this idea on real and simulated data.
Design and feasibility studies of a high-resolution and low-cost small animal SPECT system (2009)

In this study we investigate the feasibility of performing small animal SPECT imaging on a clinical SPECT scanner with a dedicate pinhole collimator. Analytical formulae are used to calculate spatial resolution and absolute sensitivity given a pinhole collimator design scheme. Two optimal pinhole designs are proposed in terms of achieving the best trade-off between spatial resolution and absolute sensitivity. One consists of one single pinhole aperture and the other one has 7 pinholes. In the 7-pinhole design scheme, the pinholes are arranged in the way that each pinhole only covers part of the region of the object to maximize the sensitivity in the central slice of field of view (FOV) and to make use of the entire detection area without much overlapping. Monte Carlo simulation studies confirm the predicted spatial resolution values from analytical formulae. Imaging reconstruction results of a simulated ultra-micro hotrod phantom demonstrate that the 0.5 mm hot rods are clearly identified with the 7-pinhole collimator. Despite that the intrinsic resolution of the SPECT detector is only 3.55 mm, its large detection area allows large magnification and good spatial resolution. We conclude that high-resolution animal SPECT imaging can be performed through the proposed approach with relatively low cost for clinical SPECT users comparing to purchasing a dedicated small animal SPECT.
Further Examination of Antiradical Properties of<i>Crocus sativus</i>Stigmas Extract Rich in Crocins (2009)

Data for antiradical properties of saffron extract and its bioactive constituents (crocins, crocetin) are limited and poorly discussed in comparison with those of extracts containing potent scavengers. Further examination was sought using the Folin-Ciocalteu (F-C) reagent and various free radical species produced in cell-free or cell model systems. Oregano and turmeric methanol extracts, rich in well established scavengers, and also crocetin, rosmarinic acid, and curcumin, representing the major types of constituents in the three studied extracts, were used as "reference". On the same weight basis, saffron extract activity was found to be rather negligible in all cell-free systems with regard to that found for reference ones. On the contrary, in the human monocyte system, saffron extracts or free crocetin were found to reduce ROS production as effectively as the phenolic antioxidants. Our findings point out that saffron extracts exhibit a remarkable intracellular antioxidant activity that cannot be revealed using assays repeatedly applied to the evaluation of phenolic-type antioxidants.
ASSESSING THE IMPACT OF ACTIVE POWER FLOW MANAGEMENT ON SCADA ALARM VOLUME (2007)

This paper presents some of the results of studies into the impact of extending the connection capacity available for distributed generation (DG) on the volume of SCADA data generated in an actively managed distribution network. The number of voltage alarms, overload alarms and tap changer operations are recorded to permit further investigation and discussion of results. The analysis is performed through the application of an Active Power Flow Management (APFM) scheme to a generic distribution network. A set of tools developed at the University of Strathclyde – as part of the United Kingdom Generic Distribution System project – are used to investigate the impact of the implementation of APFM. The results of the study show that in certain conditions, increased DG connections enabled by active management can reduce the number of voltage alarms and tap changer operations.
The Challenge of Peat Substitution in Organic Seedling Production: Optimization of Growing Media Formulation through Mixture Design and Response Surface Analysis (2015)

Peat replacement is an increasing demand in containerized and transplant production, due to the environmental constraints associated to peat use. However, despite the wide information concerning the use of alternative materials as substrates, it is very complex to establish the best materials and mixtures. This work evaluates the use of mixture design and surface response methodology in a peat substitution experiment using two alternative materials (green compost and palm fibre trunk waste) for transplant production of tomato (Lycopersicon esculentum Mill.); melon, (Cucumis melo L.); and lettuce (Lactuca sativa L.) in organic farming conditions. In general, the substrates showed suitable properties for their use in seedling production, showing the best plant response the mixture of 20% green compost, 39% palm fibre and 31% peat. The mixture design and applied response surface methodology has shown to be an useful approach to optimize substrate formulations in peat substitution experiments to standardize plant responses.
Protein Kinase Cε Overexpression Alters Myofilament Properties and Composition During the Progression of Heart Failure (2004)

We report characterization of a transgenic mouse that overexpresses constitutively active protein kinase Cepsilon in the heart and slowly develops a dilated cardiomyopathy with failure. The hemodynamic, mechanical, and biochemical properties of these hearts demonstrate a series of temporal events that mark the progression of the disease. In the 3-month transgenic (TG) animals, contractile properties and gene expression measurements are normal, but an increase in myofibrillar Ca2+ sensitivity and thin filament protein phosphorylation is noted. At 6 months, there is a decrease in the myofibrillar Ca2+ sensitivity, a significant increase in beta-myosin heavy chain mRNA and protein, normal cardiac function, but a blunted response to an inotropic challenge. The transition at 9 months is especially interesting because age-related changes appear to contribute to the decline in function seen in the TG heart. At this point, there is a decline in baseline function and maximum tension produced by the myofibrils, which is coincident with the onset of atrial myosin light chain isoform re-expression in the ventricles. In the 12-month TG mice, there is clear hemodynamic and geometric evidence of failure. Alterations in the composition of the myofibrils persist but the phosphorylation of myosin light chain 2v is dramatically different at this age compared with all others. We interpret these data to implicate the disruption of the myofibrillar proteins and their interactions in the propagation of dilated cardiac disease.
Investigation of the light-induced effects in nitrogen-rich silicon nitride films (1989)

We report the first observations of photoconductivity fatigue and generation of positive fixed charges under ultraviolet illumination in gate-quality nitrogen-rich silicon nitride films, using metal-nitride-silicon and metal-nitride-oxide-silicon structures. The photoconductivity fatigue is correlated with the density of neutral silicon dangling bonds measured by electron spin resonance. Spins and positive fixed charges are generated at the same time, but a different rates and in a different amount. Possible models are discussed to explain the observed results.
Commercialization of multijunction amorphous silicon modules (1996)

Solarex, a Business Unit of Amoco/Enron Solar, is constructing a plant in James City County, VA that will have the capacity to produce 10 MW/yr of multijunction amorphous silicon PV modules. The plant is scheduled to start commercial production of 8.6 ft/sup 2/ tandem modules in early 1997. The tandem structure utilizes a front p-i-n junction of amorphous silicon and a rear p-i-n junction containing amorphous silicon-germanium alloys. The manufacturing process utilizes plasma-enhanced CVD of the amorphous silicon alloys and computerized laser scribing combined with machine vision to fabricate monolithic thin-film PV modules. These modules are protected with a glass-EVA-glass encapsulation and pass all accelerated environmental tests. The stabilized conversion efficiencies of the tandem modules are projected to be about 8% based on results obtained with 4 ft/sup 2/ prototype modules produced on a pilot line. The principle product will be a monolithic module (/spl sim/26"/spl times/48") that is expected to be widely used in grid-tied applications such as PV roofing and solar farms.
Single versus tandem radar sensor target tracking in the adaptive cruise control environment (2003)

The multiple target tracking performance of a multiple model technique is investigated. The performance when using a single radar sensor is compared to that when a tandem radar set is employed and the technique implemented is a combination of the interactive multiple model algorithm and the probabilistic data association filter. The investigation shows that the inclusion of a second redundant radar sensor significantly improves the tracking performance of the multiple model technique with only a slight increase in the computation cost. The ability to initiate, maintain, and terminate the tracks of multiple targets in a cluttered adaptive cruise control environment is improved a) by reducing the chances of wrongfully terminating tracks when targets are not picked up during a small number of consecutive radar scans and b) by reducing the state estimate covariances. A method for showing this latter improvement involves calculating the spectrum of the relative covariance matrix. These benefits of the redundant sensor counter those of a complementary sensor where a greater field of view is afforded.
Functional Domains of the 70-Kilodalton Subunit of Human Replication Protein A (1996)

Human replication protein A (RPA) is a single-stranded DNA-binding protein that is composed of subunits of 70, 32, and 14 kDa. This heterotrimeric complex is required for multiple processes in DNA metabolism including DNA replication, DNA repair, and recombination. Previous studies have suggested that the 616 amino acid, 70-kDa subunit of RPA (RPA 70) is composed of multiple structural/functional domains. We used a series of N-terminal deletions of RPA70 to define the boundaries of these domains and elucidate their functions. Mutant RPA complexes missing residues 1-168 of RPA70 bound ssDNA with high affinity and supported SV40 replication in vitro. In contrast, deletions extending beyond residue 168 showed a decreased affinity for ssDNA and were inactive in SV40 DNA replication. When residues 1-381 were deleted, the resulting truncated RPA70 was unable to bind ssDNA but still formed a stable complex with the 32- and 14-kDa subunits of RPA. Thus, the C-terminal domain of RPA70 is both necessary and sufficient for RPA complex formation. These data indicate that RPA70 is composed of three functional domains: an N-terminal domain that is not required for ssDNA binding or SV40 replication, a central DNA-binding domain, and a C-terminal domain that is essential for subunit interactions. For all mutant complexes examined, both phosphorylation of the 32-kDa subunit of RPA and the ability to support T antigen-dependent, origin-dependent DNA unwinding correlated with ssDNA binding activity.
Sensorless control of AC machines at low speed and standstill based on the "INFORM" method (2002)

The increasing use of AC machines compared to DC motors in electrical drive applications has several reasons. A very important advantage of AC machines is their simple construction. However, AC drives often need mechanical sensors (tachometers, position encoders) for field orientation. In many applications these sensors reduce robustness and increase costs of a drive considerably. The main objective of this paper is to present the "INFORM" method based on real-time inductance measurements for sensorless control of AC drives.
Spirals in the Plane (1953)

Proceedings of the National Academy of Sciences (PNAS), a peer reviewed journal of the National Academy of Sciences (NAS) - an authoritative source of high-impact, original research that broadly spans the biological, physical, and social sciences.
Practical virtual method call resolution for Java (2000)

This paper addresses the problem of resolving virtual method and interface calls in Java bytecode. The main focus is on a new practical technique that can be used to analyze large applications. Our fundamental design goal was to develop a technique that can be solved with only one iteration, and thus scales linearly with the size of the program, while at the same time providing more accurate results than two popular existing linear techniques, class hierarchy analysis and rapid type analysis.We present two variations of our new technique, variable-type analysis and a coarser-grain version called declared-type analysis. Both of these analyses are inexpensive, easy to implement, and our experimental results show that they scale linearly in the size of the program.We have implemented our new analyses using the Soot frame-work, and we report on empirical results for seven benchmarks. We have used our techniques to build accurate call graphs for complete applications (including libraries) and we show that compared to a conservative call graph built using class hierarchy analysis, our new variable-type analysis can remove a significant number of nodes (methods) and call edges. Further, our results show that we can improve upon the compression obtained using rapid type analysis.We also provide dynamic measurements of monomorphic call sites, focusing on the benchmark code excluding libraries. We demonstrate that when considering only the benchmark code, both rapid type analysis and our new declared-type analysis do not add much precision over class hierarchy analysis. However, our finer-grained variable-type analysis does resolve significantly more call sites, particularly for programs with more complex uses of objects.
Digital Capability for Cockpit Television Sensor Instrumentation Systems (1983)

Abstract : An approach is presented for incorporating digital capability into a video instrumentation system consisting of a solid-state CCD television camera and video cassette recorder. The approach consists of passive data acquisition from a MIL STD 1553B Multiplex Serial Data Bus with the acquired data being encoded into an unused portion of the video signal. The digital data is encoded as manchester format luminance excursions in the normally blanked horizontal rasters of the video vertical blanking interval. A laboratory prototype of this device (Bus-Monitor/Video-Encoder or BM/VE) was developed along with a device (or Video Decoder) for recovery of the digital data from the video signal. The BM/VE and Video Decoder were used in laboratory testing to establish the performance parameters and design requirements needed for an actual airborne application of the BM/VE approach. A video encoding format for fault-tolerant data recovery is also developed and presented. Test results demonstrate that the primary limitation of this approach is the video cassette recorder bandwidth and that even the lower bandwidth video recorders can support application-dependent capacities of 1-3 thousand digital 16-bit words per second.
Near Infrared Optical Absorption of Gold Nanoparticle Aggregates (2002)

The reduction of HAuCl4 by Na2S has been reported to produce gold nanoparticles with an optical absorption in the near-infrared along with its characteristic absorption in the visible. The optical resonances in the visible are due to the gold surface plasma, which are a function of the geometry of the particles. The near-infrared absorption had been attributed to the formation of Au2S/Au core/shell structures. In this report we present new electronic absorption, electron microscopy, and X-ray absorption data in several systems to show that the near-infrared absorption does not involve core/shell structures. We further suggest that the near-infrared adsorption is most likely the result of the formation of aggregates of gold nanoparticles. The identification of the origin of the near-infrared resonance is critical in understanding the optical properties of metal nanoparticle systems.
Technological Advancement for Vehicles Operable by the Visually Impaired (2011)

This senior project aims to provide blind persons with the ability to effectively experience driving. This report includes the project background, literature review, designs, methodologies, results, and conclusions with project management, human factors engineering, and electronic manufacturing focuses. Other universities and professionals have accepted the Blind Driver Challenge presented by the National Federation of the Blind (NFB) or studied systems to improve vehicle feedback. The Virginia Tech vehicle, named "Odin", includes tactile and audio interfaces in order to relay information to a blind driver about vehicle heading and speed. The QFD results reveal that the amount of available information from the feedback systems ranks the most important aspect of this project's designs. The QFD slso shows the importance of both speed and acceleration. The final feedback designs of the vibrating vest, steering wheel, and audio provide commands, statuses, and speed updates. The programs packaged with the SICK LIDAR sensor as well as LabVIEW will serve to accomplish the necessary programming. This project contains two expensive items that push its total cost fairly high, the dune buggy and the laser scanner. Considering the over 1000 feet of electrical wire, electrical safety signifies a very large safety concern. Innovative sensor and tactile feedback technology provide the backbone for this advancement for the visually impaired.