gebhart/patrepeval huggingface dataset:
Inferring Interwell Connectivity Only From Well-Rate Fluctuations in Waterfloods (2003)

Summary This paper presents a practical technique to quantify communication between wells in a reservoir using only production and injection rate data. The technique combines a constrained multivariate linear regression analysis with diffusivity filters to provide information about permeability trends and the presence of transmissibility barriers. The method was developed and tested using a numerical simulator and then applied to a waterflooded field in Argentina. The simulation results indicate that the connectivity between wells is described by coefficients that only depend on geology and relative position between wells; they are independent of injection/production rates. The results of this work can be used to improve the performance of an existing waterflood by suggesting how well patterns might be changed or managed. They could also be used to model flow in the reservoir.
Holography as a teaching tool (1993)

The holo-diagram is a diagram originally designed as a tool for teaching the making and evaluation of holograms. It was soon found to include much more general uses than first expected. During the 20 years since its introduction this diagram has been applied to explain many different fields, such as holography, interferometry, diffraction, Fermat's principle, light-in-flight recordings, three-dimensional measurements with ultrashort light pulses, and the special theory of relativity.
Acoustic monitoring of BWR main steam safety relief valves (1988)

Main steam safety relief valves (SRVs) are important equipment in boiling water reactor plants, so monitoring of leakage and valve opening of SRVs is also important. To detect leakage and valve opening, thermocouples are installed on exhaust pipes and limit switches or position sensors on valve stems. The acoustic detection technique with AE sensors and accelerometers is adopted not only to increase the accuracy and response speed of leak detection, but also to estimate leak rate and to detect valve opening. The acoustic leak detection technique was found effective by the mock-up experiment in which an actual SRV and steam under the same condition as the actual use were used to measure the signals from AE sensors and accelerometers attached to the SRV with artificial cuttings on its thermal disk. The acoustic monitoring tests of SRVs have been carried out at a nuclear power plant to prove the acoustic leak detection technique to be effective. The results of the acoustic monitoring tests at the plant are discussed. As a result of the on-site test, the acoustic leak monitoring system was found effective in the plant.
Global Takeoff of New Products: Culture, Wealth, or Vanishing Differences? (2008)

The authors study the takeoff of 16 new products across 31 countries (430 categories) to analyze how and why takeoff varies across products and countries. They test the effect of 12 hypothesized drivers of takeoff using a parametric hazard model. The authors find that the average time to takeoff varies substantially between developed and developing countries, between work and fun products, across cultural clusters, and over calendar time. Products take off fastest in Japan and Norway, followed by other Nordic countries, the United States, and some countries of Midwestern Europe. Takeoff is driven by culture and wealth plus product class, product vintage, and prior takeoff. Most importantly, time to takeoff is shortening over time and takeoff is converging across countries. The authors discuss the implications of these findings.
Specificity of 5l Cr-Release Cytotoxicity of Lymphocytes Immune to Murine Sarcoma Virus 2 (1974)

Journal Article Specificity of 5lCr-Release Cytotoxicity of Lymphocytes Immune to Murine Sarcoma Virus Get access Ronald B. Herberman, Ronald B. Herberman 3Laboratory of Cell Biology, National Cancer .Institute, National Institutes of Health, Public Health Service, U.S, Department of Health, Education, and Welfare, Bethesda, Md. 20014. Search for other works by this author on: Oxford Academic PubMed Google Scholar Tadao Aoki, Tadao Aoki 4Viral Leukemia and Lymphoma Branch, National Cancer Institute. Search for other works by this author on: Oxford Academic PubMed Google Scholar Myrthel Nunn, Myrthel Nunn 3Laboratory of Cell Biology, National Cancer .Institute, National Institutes of Health, Public Health Service, U.S, Department of Health, Education, and Welfare, Bethesda, Md. 20014. Search for other works by this author on: Oxford Academic PubMed Google Scholar David H. Lavrin, David H. Lavrin 5Litton Bionetics, Inc., Kensington, Md. 20795. Search for other works by this author on: Oxford Academic PubMed Google Scholar N. Soares, N. Soares 5Litton Bionetics, Inc., Kensington, Md. 20795. Search for other works by this author on: Oxford Academic PubMed Google Scholar Adi Gazdar, Adi Gazdar 4Viral Leukemia and Lymphoma Branch, National Cancer Institute. Search for other works by this author on: Oxford Academic PubMed Google Scholar Howard Holden, Howard Holden 3Laboratory of Cell Biology, National Cancer .Institute, National Institutes of Health, Public Health Service, U.S, Department of Health, Education, and Welfare, Bethesda, Md. 20014. Search for other works by this author on: Oxford Academic PubMed Google Scholar K. S. S. Chang K. S. S. Chang 3Laboratory of Cell Biology, National Cancer .Institute, National Institutes of Health, Public Health Service, U.S, Department of Health, Education, and Welfare, Bethesda, Md. 20014. Search for other works by this author on: Oxford Academic PubMed Google Scholar JNCI: Journal of the National Cancer Institute, Volume 53, Issue 4, October 1974, Pages 1103–1111, https://doi.org/10.1093/jnci/53.4.1103 Published: 01 October 1974 Article history Received: 15 April 1974 Accepted: 20 June 1974 Published: 01 October 1974
NUMERICAL AND EXPERIMENTAL RESEARCH IN HEAT TRANSFER TO SCREW COMPRESSOR ROTORS (2012)

A premiere free-access and peer-reviewed frontier journal site, serving the needs of the thermal-fluids community. See the latest research or submit an article. Quickly share your research with the global thermal-fluids community, for increased citations and impact at no cost.
Pericarp and endosperm structure of sorghum grain shown by scanning electron microscopy (1974)

In varieties with soft or opaque endosperm the tissue is characterized by relatively irregular air spaces and the starch grains are round and covered with a thin protein sheet embedded in which are large spherical protein bodies. In hard or translucent-endosperm varieties, the endosperm is characterized by a tightly packed structure with no air spaces and the starch grains are polygonal and covered with a thin protein matrix embedded in which are kafrin-protein bodies low in lysine. The content of aminoacids, ammonia and protein is tabulated for eleven lines from the Sudan and USA. A Sudanese dwarf variety contained more lysine and less glutamic acid and leucine than other lines
Enhanced self-assembly of the 7–12 sequence of amyloid-β peptide by tyrosine bromination (2020)

Alzheimer’s disease (AD) is a serious neuropathology related to the misfolded assembly state of amyloid-beta (Aβ40 and Aβ42) peptides. It has been demonstrated that protein post-translation modifications (PPTMs) of the more hydrophilic N-term moiety of the Aβ peptide affect its aggregation kinetics and interaction with the environment. Considering that chlorination and bromination are non-canonical PPTMs found in various metabolic pathways and often correlated to inflammatory responses, halogenation of the Y10 of the Aβ N-term could be a putative in vivo modification with implications in the Aβ peptide aggregation propensity. In this framework, we chose as a model system, a short peptide sequence, DSGYEV (i.e. residues 7–12 of the Aβ N-term) and studied its self-assembly behaviour in comparison to its chlorinated and brominated derivatives. Our results show that Y10 halogenation works as a molecular trigger of the peptide self-assembly in solution, promoting the formation of more structured aggregates.
Functional interaction between p21rap1A and components of the budding pathway in Saccharomyces cerevisiae. (1992)

The rap1A gene encodes a 21-kDa, ras-related GTP-binding protein (p21rap1A) of unknown function. A close structural homolog of p21rap1A (65% identity in the amino-terminal two-thirds) is the RSR1 gene product (Rsr1p) of Saccharomyces cerevisiae. Although Rsr1p is not essential for growth, its presence is required for nonrandom selection of bud sites. To assess the similarity of these proteins at the functional level, wild-type and mutant forms of p21rap1A were tested for complementation of activities known to be fulfilled by Rsr1p. Expression of p21rap1A, like multicopy expression of RSR1, suppressed the conditional lethality of a temperature-sensitive cdc24 mutation. Point mutations predicted to affect the localization of p21rap1A or its ability to cycle between GDP and GTP-bound states disrupted suppression of cdc24ts, while other mutations in the 61-65 loop region improved suppression. Expression of p21rap1A could not, however, suppress the random budding phenotype of rsr1 cells. p21rap1A also apparently interfered with the normal activity of Rsrlp, causing random budding in diploid wild-type cells, suggesting an inability of p21rap1A to interact appropriately with Rsr1p regulatory proteins. Consistent with this hypothesis, we found an Rsr1p-specific GTPase-activating protein (GAP) activity in yeast membranes which was not active toward p21rap1A, indicating that p21rap1A may be predominantly GTP bound in yeast cells. Coexpression of human Rap1-specific GAP suppressed the random budding due to expression of p21rap1A or its derivatives, including Rap1AVal-12. Although Rap1-specific GAP stimulated the GTPase of Rsr1p in vitro, it did not dominantly interfere with Rsr1p function in vivo. A chimera consisting of Rap1A1-165::Rsr1p166-272 did not exhibit normal Rsr1p function in the budding pathway. These results indicated that p21rap1A and Rsr1p share at least partial functional homology, which may have implications for p21rap1A function in mammalian cells.
Design of a Humanoid Robot Eye (2007)

This chapter has shown the feasibility of a tendon driven robot eye featuring the implementation of Listing's Law on a mechanical basis. The design of the robot is based on a model which is strongly inspired on assumptions derived from physiological evidence. The achievements discussed in this chapter represent the starting point for the development of a more complex humanoid robot eye. From the mechanical point of view the most important advancement is represented by the possibility of extending the actuation to six tendons in order to enable the implementation of more complex ocular motions as the vestibulo-ocular reflex. From a theoretical point of view a more complete analysis of the properties of the proposed eye model could provide further understanding of the dynamics of saccadic motions. Furthermore, other issues such as eye miniaturization and embedding of image processing algorithms modules for direct visual feedback represent important challenges for the development of fully operational devices.
Joint detection and tracking of boundaries using cooperative mobile sensor networks (2013)

This paper considers a boundary tracking problem using mobile sensor networks, in which we design controllers for the mobile sensors to obtain the boundary of physical events. We set the boundary estimation problem as a classification problem of the region in which the physical events occurs, and employ support vector learning (SVL). By using the hyper-dimensional radius function obtained from SVL, we build the hyper-potential field to generate a velocity vector field which is globally attractive to a desired closed path with circulation at the desired speed. We also study stabilizing the collective configuration of the multiple mobile sensors. To coordinate the mobile sensors in the formation that encloses the boundary, we define virtual phases of mobile sensors and compute the desired speed of each mobile sensors minimizing the level of synchrony of the virtual phases. Both a simulation and an experiment is performed and the results demonstrate that this study provides good performance of the collective boundary tracking.
Carrier-Envelope Phase Dynamics of Octave-Spanning Titanium:Sapphire Lasers (2009)

The carrier-envelope phase dynamics of octave-spanning Ti:sapphire lasers are analyzed based on a one-dimensional laser. It is found that self-steepening is the major contributor to the energy dependent carrier-envelope phase and that center-frequency-shifts are negligible.
γ-precipitate strengthening in nickel-based superalloys (2010)

We describe here a computational method to study γ-precipitate strengthening in nickel-based superalloys, and to specifically investigate the relative importance of stacking-fault energy and coherency strains. The method is a combination of the Parametric Dislocation Dynamics (PDD), an analytical solution to the spherical inclusion problem and the generalized Peierls–Nabarro (P-N) model. Earlier analytical solutions to stacking-fault strengthening predict a lower critical resolved shear stress (CRSS) in comparison with the results of the present model. This is attributed to shape changes of super-dislocations during their interaction with γ-precipitates. However, existing analytical solutions to coherency strengthening provide considerably larger values of the CRSS compared with the results of present simulations. The dislocation core is found to spread widely as it interacts with γ-precipitates, and is thus much softer than what has been considered in previous analytical solutions. This remarkable effect is a direct result of the core structure of dislocations interacting with precipitates. When this effect is accounted for, a new analytical solution is shown to give excellent agreement with present simulation results. We finally discuss the combined effects of the two strengthening mechanisms, when they operate simultaneously.
Using a portable terahertz spectrometer to measure the optical properties of in vivo human skin (2013)

Terahertz time-domain spectroscopy (THz-TDS) systems are capable of detecting small differences in water concentration levels in biological tissues. This feature makes THz devices excellent tools for the noninvasive assessment of skin; however, most conventional systems prove too cumbersome for limited-space environments. We previously demonstrated that a portable, compact THz spectrometer permitted measurement of porcine skin optical properties that were comparable to those collected with conventional systems. In order to move toward human use of this system, the goal for this study was to collect the optical properties, specifically the absorption coefficient (μ<sub>a</sub>) and index of refraction (n), of human subjects in vivo. Spectra were collected from 0.1-2 THz, and measurements were made on the palm, ventral (inner) and dorsal (outer) forearm. Prior to each THz measurement, we used a multiprobe adapter system to measure each subject’s skin hydration levels, transepidermal waterloss (TEWL), skin color, and degree of melanin pigmentation. Our results suggest that the measured optical properties were wide-ranging, and varied considerably for skin tissues with different hydration and melanin levels. These data provide a novel framework for accurate human tissue measurements using THz spectrometers in limited-space environments.
Clinical- Biological Characterization Of The Patients With Llc And Trisomy 12 That Exhibit Additional Trisomies : Importance Of The Accompanying Alterations (2015)

Clinical- Biological Characterization Of The Patients With Llc And Trisomy 12 That Exhibit Additional Trisomies : Importance Of The Accompanying Alterations
Electrical properties and Kerr effect study of evaporated Fe/Si and Fe/glass thin films (2009)

Electrical and magnetic properties were studied for evaporated Fe thin films on glass and Si substrates. These properties were investigated by means of the four point probe and the magneto-optical Kerr effect techniques. Rutherford backscattering (RBS) and scanning electron microscopy (SEM) experiments show no interdiffusion at the interface Fe/Si for these samples. The electrical resistivity is found to be larger in Fe/glass than in Fe/Si for the same thickness. Diffusion at the grain boundaries seems to be the dominant factor in the values in this 6 to 110 nm thickness range; the reflection coefficient is smaller in Fe/glass (R ≈ 0.40) than in Fe/Si(100) (R ≈ 0.65). Saturation field and strain values confirm that Fe films have a stress induced magnetic anisotropy. Coercive field HC values range from 2.45 Oe for Fe/Si(100) to 17.65 Oe for Fe/Si(111) for the same Fe thickness (45 nm).
Detection of sinusoidal amplitude modulation at unexpected rates (1998)

The detectability of sinusoidal amplitude modulation at unexpected modulation rates was assessed using a probe-signal method. With this method, three listeners were led to expect a target modulation rate (4, 32, or 256 Hz) by presenting the signal most often at that rate, and sensitivity to modulation at six other unexpected rates between 4 and 256 Hz was measured via occasionally presented probe modulation rates. The modulation phase was random on each two-interval forced-choice trial and the overall level of the 500-ms broadband carrier was randomly varied between 55 and 75 dB SPL across intervals. The modulation depth at each rate was set so that the modulation was detected on about 90% of the trials when only that rate was presented. Performance at the unexpected rates depended upon the target rate. For the 4-Hz target, modulation at all rates was detected on about 80% of the trials. For the 32- and 256-Hz targets, unexpected modulation rates of 16 Hz and above were detected on 80%-90% of the trials, but modulation rates below 16 Hz were detected nearly at chance. The influence of expectation of modulation rate on the detection of sinusoidal amplitude modulation is not readily predicted by current models of modulation detection.
ChemInform Abstract: Baeyer—Villiger Oxidation of Ketones with a Silica‐Supported Peracid in Supercritical Carbon Dioxide under Flow Conditions. (2009)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
MAR-mediated integration of plasmid vectors for in vivo gene transfer and regulation (2013)

This study thus elucidates some of the determinants of transient or sustained expression from the use of non-viral regulated vectors in vivo.
A Comparison of Supercritical Carbon Dioxide Power Cycle Configurations with an Emphasis on CSP Applications (Presentation) (2013)

Recent research suggests that an emerging power cycle technology using supercritical carbon dioxide (s-CO2) operated in a closed-loop Brayton cycle offers the potential of equivalent or higher cycle efficiency versus supercritical or superheated steam cycles at temperatures relevant for CSP applications. Preliminary design-point modeling suggests that s-CO2 cycle configurations can be devised that have similar overall efficiency but different temperature and/or pressure characteristics. This paper employs a more detailed heat exchanger model than previous work to compare the recompression and partial cooling cycles, two cycles with high design-point efficiencies, and illustrates the potential advantages of the latter. Integration of the cycles into CSP systems is studied, with a focus on sensible heat thermal storage and direct s-CO2 receivers. Results show the partial cooling cycle may offer a larger temperature difference across the primary heat exchanger, thereby potentially reducing heat exchanger cost and improving CSP receiver efficiency.
Distributed classification in a multi-source environment (2003)

Current methods of determining the classification of objecls (such as aircrafi) across the battlespace in military systems are by design, stovepiped, plafform-centric designs. Classification data and information are generally either sent at a very low level (e.g. every contributing response) or worse, as a decision such as FRIENDor F-16 without metrics lo quanrifi the level of assurance of the decision. The former method potentially overwhelms a large network when many nodes are simirltaneously reporting and receiving information. The latter method leaves each receiving node with no information to help resolve diflerences between its local decisions, and those coming from other nodes. In this paper, a method to share information that allows for distributed decisions across multiple nodes is given. It is based on a classi/ication vector that conveys probabilistic and evidential object informarion, as well as measurements of information content and confusion.
Time-Resolved Charge Transfer in “Push-Pull” Stilbenes (2002)

Abstract Intramolecular Charge Transfer (ICT) processes of 4-dimethylamino-4′-nitrostilbene (DNS) in solution are studied by pump-probe absorption spectroscopy with a 100 fs time resolution. The results are compared to transient CARS experiments. Pump-probe results confirm the formation of a radiative ICT state in low polar solvents. In a highly polar solvent (acetonitrile), the formation of a short-lived non-radiative ICT state is observed for the first time. CARS experiments support structural changes associated to ICT processes in highly polar solvents.
Massively Parallel Approximate Gaussian Process Regression (2014)

We explore how the big-three computing paradigms---symmetric multiprocessor, graphical processing units (GPUs), and cluster computing---can together be brought to bear on large-data Gaussian processes (GP) regression problems via a careful implementation of a newly developed local approximation scheme. Our methodological contribution focuses primarily on GPU computation, as this requires the most care and also provides the largest performance boost. However, in our empirical work we study the relative merits of all three paradigms to determine how best to combine them. The paper concludes with two case studies. One is a real data fluid-dynamics computer experiment which benefits from the local nature of our approximation; the second is a synthetic example designed to find the largest data set for which (accurate) GP emulation can be performed on a commensurate predictive set in under an hour.
In vitro bone marrow GM-CFC growth in aplastic patients. Correlation between E rosette forming cells and immunotherapy results. (1984)

In vitro bone marrow GM-CFC (granulomonocyte colony forming cell) growth following E rosette (+) cell depletion was studied in 14 aplastic patients to determine whether an autoimmune factor could be involved in the pathophysiological process leading to the decrease in bone marrow colony formation. The increase in GM-CFC growth after E rosette (+) cell depletion was high in 8 cases, suggesting that in these cases an autoimmune mechanism may have been involved. All these patients responded within a month to treatment with antithymocyte globulin (ATG) or corticosteroids. Six patients did not respond to immunotherapy, none showed increased GM-CFC growth. The increase of in vitro GM-CFC growth after E rosette (+) cell depletion in aplastic anemia could therefore be a good indication for the trial of immunotherapy. However this study seems to be useful only in patients with at least a few months evolution after diagnosis.