gebhart/patrepeval huggingface dataset:
Sample Value Adjustment Improves Phasor Estimation at Off-Nominal Frequencies (2010)

This paper presents an algorithm for better phasor estimation at off-nominal frequencies. The sampling rate remains unchanged, but instead the amplitude of the sample values within a buffer is altered in order to give a signal of the same amplitude but different frequency. The re-calculation of the samples is done by second order spline interpolation. The effect is that the signal frequency appears to be changed to nominal. The algorithm requires knowledge of the frequency, which has to be determined by other means. It can only be used for filters with a finite window length, such as finite-impulse response filters. The proposed algorithm gives a maximum magnitude error of less than 0.1% for frequency deviations up to 10% from nominal. The proposed algorithm does not need any over-sampling and re-sampling to a lower sampling rate. It helps preserve the desired frequency characteristics of filters at off-nominal frequencies. This paper presents a simulation example, which uses an off-nominal test signal of 55 Hz with a 10% second harmonic. The result indicates that this test signal might cause problems for some phasor algorithms, but the proposed sample value adjustment algorithm handles this test case efficiently and complies with Level 1 of IEEE Standard C37.118-2005.
An allocation management algorithm for DVE system (2009)

Distributed virtual environment (DVE) systems model and simulate the activities of thousands of entities interacting in a virtual world over a wide area network. These systems are composed of many servers each of which is responsible to manage multiple clients who want to participate in the virtual world .each server delivers the information updated from different clients, to other client in virtual world .Lui & Chan proposed a three step algorithm for balancing the workload among the servers of the DVE, However they didn't take into consideration objects affecting the calculation. This paper presents an object driven partitioning algorithm to improve the performance of distributed virtual environment.
Highly uniform InGaAs/GaAs quantum dots (∼15 nm) by metalorganic chemical vapor deposition (1994)

We report the direct deposition of strained InGaAs-dot structures with a diameter of about 15 nm on GaAs surfaces by metalorganic chemical vapor deposition growth. High resolution scanning electron micrographs show highly uniform quantum-sized dots formed by the Stranski–Krastanow growth mode. The sharp photoluminescence emission band of buried dot structures indicates efficient carrier capture and a homogeneous heterointerface. The average dot size and area dot density can be controlled accurately by growth temperature, and InGaAs deposition thickness, respectively.
Hazardous waste and solid waste (2000)

HAZARDOUS WASTE SOURCES AND EFFECTS Hazardous Waste Defined Hazardous Waste Sources Effects of Hazardous Waste CHARACTERIZATION, SAMPLING, AND ANALYSIS Hazardous Waste Characteristics Sampling and Analysis Compatibility RISK MANAGEMENT AND WASTE MANAGEMENT The Hazard Ranking System and the National Priority Lists Risk Assessment Waste Minimization and Reduction Hazardous Waste Transportation TREATMENT AND DISPOSAL Treatment, Storage, and Disposal Requirements Storage Treatment and Disposal Alternatives Waste Destruction Technology Waste Concentration Technology Solidification and Stabilization Techniques Biological Treatment Biotreatment by Sequencing Batch Reactors STORAGE AND LEAK DETECTION Underground Storage Tanks Leak Detection and Remediation RADIOACTIVE WASTE Principles of Radioactivity Sources of Radioactivity in the Environment Safety Standards Detection and Analysis Mining and Recovery of Radioactive Materials Low-level Radioactive Waste High-level Radioactive Waste Transport of Radioactive Materials SOLID WASTE SOURCE AND EFFECT Definition Sources, Quantities, and Effects CHARACTERIZATION Physical and Chemical Characteristics Characterization Methods Implications for Solid Waste Management RESOURCE CONSERVATION AND RECOVERY Reduction, Separation, and Recycling Material Recovery Refuse-Derived Fuel (RDF) TREATMENT AND DISPOSAL Waste-to-Energy Incinerators Sewage Sludge Incineration Onsite Incinerators Pyrolysis of Solid Waste Sanitary Landfills Composting of MSW INDEX
A robust and fast action selection mechanism for planning (1997)

The ability to plan and react in dynamic environments is central to intelligent behavior yet few algorithms have managed to combine fast planning with a robust execution. In this paper we develop one such algorithm by looking at planning as real time search. For that we develop a variation of Korf&apos;s Learning Real Time A algorithm together with a suitable heuristic function. The resulting algorithm interleaves lookahead with execution and never builds a plan. It is an action selection mechanism that decides at each time point what to do next. Yet it solves hard planning problems faster than any domain independent planning algorithm known to us, including the powerful SAT planner recently introduced by Kautz and Selman. It also works in the presence of perturbations and noise, and can be given a fixed time window to operate. We illustrate each of these features by running the algorithm on a number of benchmark problems. 1 Introduction The ability to plan and react ...
The use of banked femoral head bone allograft in spinal surgery. (1989)

A safe, simple, and inexpensive method of harvesting femoral head allograft bone and storing it in a mechanical deep-freeze is discussed. This banked bone has been used in 39 patients for posterior spinal fusions. The allograft bone was used only where insufficient autograft bone could be harvested, where the autograft bone was regarded as inferior in quality or when harvesting autograft bone would have been hazardous to the patient. The allograft bone was found to be very reliable in helping to achieve a solid spinal fusion.
Metallic Bragg-gratings for light management in organic light-emitting devices (2011)

Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Twitter Facebook Reddit LinkedIn Tools Icon Tools Reprints and Permissions Cite Icon Cite Search Site Citation Julian Hauss, Tobias Bocksrocker, Boris Riedel, Ulf Geyer, Uli Lemmer, Martina Gerken; Metallic Bragg-gratings for light management in organic light-emitting devices. Appl. Phys. Lett. 5 September 2011; 99 (10): 103303. https://doi.org/10.1063/1.3631728 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAIP Publishing PortfolioApplied Physics Letters Search Advanced Search |Citation Search
Acaricide Screening for Control of Psoroptic Mites, 1978 (1979)

Abstract Normally, common scabies mites, Psoroptesovis (Hering), were obtained from Government-owned cattle for acaricide tests. During the summer months these mites were not available; therefore, we used Psoroptescuniculi (Delafond) taken from the ears of rabbits for these tests. Approximately 20 to 25 mites (adults or nymphs) were put in “tea bags” (2.5 cm by 2.5cm) made from heat-sealable rice paper (modified method of Gladney, W.J. et a., 1972, J. Econ. Entomol. 65: 174-176). The bags were dipped in the acaricides for 30 sec and then allowed to dry at room temperature and prevailing humidity.
<title>Image restoration using the damped Richardson-Lucy method</title> (1994)

The Richardson-Lucy iteration (also known as the EM iteration for image restoration with Poisson statistics) is the most widely used image restoration technique for optical astronomical data. Like all maximum likelihood methods, it suffers from noise amplification in the restored images. Previously suggested methods for dealing with this problem (stopping the iteration early or smoothing the final image) have serious drawbacks for astronomical applications. This paper describes a new image restoration iteration based on the RL method that reduces noise amplification. The method is based on a modified form of the Poisson likelihood function that is flatter in the vicinity of a good fit. The resulting iteration is very similar to the RL iteration, but includes a new spatially adaptive damping factor that prevents noise amplification in regions of the image where a smooth model provides an adequate fit to the data; thus, I call this the `damped Richardson-Lucy iteration.' The damped iteration converges more rapidly than the RL method and can be accelerated using the same techniques as the standard RL iteration. Results are shown for both simulated data and Hubble Space Telescope images.
Positive Train Control (PTC): Overview and Policy Issues (2012)

The Rail Safety Improvement Act of 2008 (RSIA08) requires implementation of positive train control (PTC) on railroads which carry passengers or have high-volume freight traffic with toxicor poisonous-by-inhalation hazardous materials.PTC is a communications and signaling system that has been identified by the National Transportation Safety Board (NTSB) as a technology capable of preventing accidents caused by train operator or dispatcher error.PTC is expected to reduce the number of accidents due to excessive speed, conflicting train movements, and engineer failure to obey wayside signals.It would not prevent incidents due to trespassing on railroads' right-of-way or at highway-rail grade crossings, where the vast majority of rail-related fatalities occur.Under RSIA08, PTC is required on about 60,000 miles of railroad track by December 31, 2015.Many railroad companies are uncertain of their ability to fully implement PTC by this deadline.The Federal Railroad Administration (FRA) estimates full PTC implementation will cost approximately $14 billion.Although the larger freight railroads are well along in planning for PTC, some smaller railroads and commuter lines have not yet identified sources of funding for implementation.PTC uses signals and sensors along the track to communicate train location, speed restrictions, and moving authority.If the locomotive is violating a speed restriction or moving authority, onboard equipment will automatically slow or stop the train.A more expansive version of PTC, called communications-based train control (CBTC), would bring additional safety benefits plus business benefits for railroad operators, such as increased capacity and reduced fuel consumption.However, CBTC is not currently being installed by any U.S. railroad, due to the additional cost and to uncertainty about implementation of PTC before the 2015 deadline.Two bills introduced in the 112 th Congress, the Moving Ahead for Progress in the 21 st Century Act (MAP-21; S. 1813), as approved by the Senate, and the American Energy and Infrastructure Jobs Act (H.R. 7), approved by the House Transportation and Infrastructure Committee, would have extended the deadline and made other policy changes.No language relating to PTC was included in the final surface transportation bill (P.L. 112-141) enacted on July 6, 2012.However, existing law requires the U.S. Department of Transportation (DOT) to report to Congress about the status of PTC implementation by December 31, 2012.If it wishes to reexamine
Synergistic Antibacterial Activity of Black Phosphorus Nanosheets Modified with Titanium Aminobenzenesulfanato Complexes (2019)

A two-dimensional (2D) antimicrobial nanoagent is synthesized by incorporating the titanium aminobenzenesulfanato complexes (Ti-SA4) onto black phosphorus nanosheets (BPs). The strong P–Ti coordination between Ti-SA4 and BPs results in the high loading capacity (∼43%) of Ti-SA4 onto BPs and enhances the stability of BPs against oxidation. Compared to bare BPs and Ti-SA4, the Ti-SA4@BPs exhibit improved antibacterial efficacy, and most of the bacteria are inactivated within 3 h with a dose of only 50 μg/mL. The underlying antibacterial mechanism is investigated. This proposed Ti-SA4@BPs have great potential in clinical applications, and the results provide insights into the design and synthesis of 2D antibacterial nanoagents.
Fuzzy Logic Control System for Autonomous Sailboats (2007)

Sailing experts can explain basic sailing skills by rules about how to steer sails and rudder according to direction of target and wind. This paper describes how to transform the sailor's knowledge into Mamdani type fuzzy inference systems. The proposed system controls two actuators - rudder and sails - even during tack and jibe. In combination with an automatic weather routeing system the sailboat is able to reach any target completely autonomously. Experiments on a demonstration sailboat have shown excellent results. Detailed log data analysis shows manoeuvres carried out as expected by sailing experts.
Glucagon-like peptide-1 mobilizes intracellular Ca2+ and stimulates mitochondrial ATP synthesis in pancreatic MIN6 beta-cells (2003)

Glucagon-like peptide-1 (GLP-1) is a potent regulator of glucose-stimulated insulin secretion whose mechanisms of action are only partly understood. In the present paper, we show that at low (3 mM) glucose concentrations, GLP-1 increases the free intramitochondrial concentrations of both Ca(2+) ([Ca(2+)](m)), and ATP ([ATP](m)) in clonal MIN6 beta-cells. Suggesting that cAMP-mediated release of Ca(2+) from intracellular stores is responsible for these effects, increases in [ATP](m) that were induced by GLP-1 were completely blocked by the Rp isomer of adenosine-3',5'-cyclic monophosphothioate (Rp-cAMPS), or by chelation of intracellular Ca(2+). Furthermore, inhibition of Ins(1,4,5) P (3) (IP(3)) receptors with xestospongin C, or application of ryanodine, partially inhibited GLP-1-induced [ATP](m) increases, and the simultaneous blockade of both IP(3) and ryanodine receptors (RyR) completely eliminated the rise in [ATP](m). GLP-1 appeared to prompt Ca(2+)-induced Ca(2+) release through IP(3) receptors via a protein kinase A (PKA)-mediated phosphorylation event, since ryanodine-insensitive [ATP](m) increases were abrogated with the PKA inhibitor, H89. In contrast, the effects of GLP-1 on RyR-mediated [ATP](m) increases were apparently mediated by the cAMP-regulated guanine nucleotide exchange factor cAMP-GEFII, since xestospongin C-insensitive [ATP](m) increases were blocked by a dominant-negative form of cAMP-GEFII (G114E,G422D). Taken together, these results demonstrate that GLP-1 potentiates glucose-stimulated insulin release in part via the mobilization of intracellular Ca(2+), and the stimulation of mitochondrial ATP synthesis.
Oxygen Nonstoichiometry in YBaCo<sub>4</sub>O<sub>7+</sub><sub>δ</sub>:  Large Low-Temperature Oxygen Absorption/Desorption Capability (2005)

An uncommon oxygen absorption/desorption behavior is reported for the cation-stoichiometric cobalt oxide, YBaCo4O7, structurally composed of two kinds of layers of corner-sharing CoO4 tetrahedra. We have found that YBaCo4O7+δ absorbs and desorbs oxygen up to δ ≈ 1.5 in a narrow temperature range below 400 °C. The oxygen uptake/release process is highly reversible, being controlled by both temperature and oxygen partial pressure. Such a large low-temperature oxygen-content tunability is of great promise in regard to applications related to, for example, oxygen storage. Materials with similar characteristics are, to a large degree, lacking today.
Clusters, asters, and collective oscillations in chemotactic colloids (2014)

The creation of synthetic systems that emulate the defining properties of living matter, such as motility, gradient-sensing, signaling, and replication, is a grand challenge of biomimetics. Such imitations of life crucially contain active components that transform chemical energy into directed motion. These artificial realizations of motility point in the direction of a new paradigm in engineering, through the design of emergent behavior by manipulating properties at the scale of the individual components. Catalytic colloidal swimmers are a particularly promising example of such systems. Here we present a comprehensive theoretical description of gradient-sensing of an individual swimmer, leading controllably to chemotactic or anti-chemotactic behavior, and use it to construct a framework for studying their collective behavior. We find that both the positional and the orientational degrees of freedom of the active colloids can exhibit condensation, signaling formation of clusters and asters. The kinetics of catalysis introduces a natural control parameter for the range of the interaction mediated by the diffusing chemical species. For various regimes in parameter space in the long-ranged limit our system displays precise analogs to gravitational collapse, plasma oscillations, and electrostatic screening. We present prescriptions for how to tune the surface properties of the colloids during fabrication to achieve each type of behavior.
Interruption of endothelin signaling modifies membrane type 1 matrix metalloproteinase activity during ischemia and reperfusion (2007)

The matrix metalloproteinases (MMPs), in particular, membrane type 1 MMP (MT1-MMP), are increased in the context of myocardial ischemia and reperfusion (I/R) and likely contribute to myocardial dysfunction. One potential upstream induction mechanism for MT1-MMP is endothelin (ET) release and subsequent protein kinase C (PKC) activation. Modulation of ET and PKC signaling with respect to MT1-MMP activity with I/R has yet to be explored. Accordingly, this study examined in vivo MT1-MMP activation during I/R following modification of ET signaling and PKC activation. With the use of a novel fluorogenic microdialysis system, myocardial interstitial MT1-MMP activity was measured in pigs (30 kg; n = 9) during I/R (90 min I/120 min R). Local ET(A) receptor antagonism (BQ-123, 1 microM) and PKC inhibition (chelerythrine, 1 microM) were performed in parallel microdialysis probes. MT1-MMP activity was increased during I/R by 122 +/- 10% (P < 0.05) and was unchanged from baseline with ET antagonism and/or PKC inhibition. Selective PKC isoform induction occurred such that PKC-betaII increased by 198 +/- 31% (P < 0.05). MT1-MMP phosphothreonine, a putative PKC phosphorylation site, was increased by 121 +/- 8% (P < 0.05) in the I/R region. These studies demonstrate for the first time that increased interstitial MT1-MMP activity during I/R is a result of the ET/PKC pathway and may be due to enhanced phosphorylation of MT1-MMP. These findings identify multiple potential targets for modulating a local proteolytic pathway operative during I/R.
Shear degradation of polyacrylamide solutions (1974)

Partially hydrolyzed polyacrylamide solutions are highly shear degradable and may lose much of their effectiveness in reducing water mobility when sheared by porous rock in the vicinity of an injection well. Degradation is investigated in this paper by forcing polymer solutions, prepared in brines of various salinities, through consolidated sandstone plugs differing in length and permeability, over a wide range of flow rates. A correlation for degradation based on a theoretical visco-elastic fluid model is developed that extends predictive capability to situations not easily reproduced in the laboratory. Mobility reduction losses in field cores at reservoir flow rates are measured following degradation and found to depend strongly on formation permeability. Consideration of field applications shows that injection into typical wellbore geometries can lead to losses of unsheared mobility reduction larger than 80%. Also discussed are consequences for incremental oil recovery and the possibility of injecting through propped fractures. (26 refs.)
Anion Transport in a Chemically Stable, Sterically Bulky α-C Modified Imidazolium Functionalized Anion Exchange Membrane (2014)

The morphology and anion transport of an α-C modified imidazolium functionalized anion exchange membrane, 1,4,5-trimethyl-2-(2,4,6-trimethoxyphenyl)imidazolium functionalized polyphenylene oxide (with ion exchange capacity {IEC} = 1.53 or 1.82 mequiv/g), were studied in detail. The novel cation is less susceptible to OH– attack (0% degradation) compared to unsubstituted imidazolium functionalized polyphenylene oxide (25% degradation) after 24 h at 80 °C in 1 M KOH. The two different IEC materials (with the same protected cation) show interesting differences in membrane performance. From AFM and SAXS under humid conditions, the domain sizes of the membrane change, which impact the transport properties. The lower IEC sample showed a smaller tortuosity and, thus, needs a longer diffusion time for the water molecules to be fully hindered inside the hydrophobic clusters, which is confirmed by water self-diffusion measurements from pulsed field gradient NMR. From conductivity and diffusion measurements, the higher IEC sample exhibited Vogel–Tammann–Fulcher behavior, thus indicating that the polymer chain’s movement dominates the transport. However, the lower IEC sample exhibited the linear Arrhenius behavior signifying water-mediated transport. The maximum Cl– conductivity observed was 23 mS/cm at 95% RH and 90 °C.
Control of scattering from probes for near-field antenna measurements by use of skirt (2004)

A novel approach to reducing the multiple reflections between the test antenna and the probe in near-field antenna measurements is proposed. Instead of absorbers, this approach makes use of a skirt on the probe to shield against the mounting structure behind the probe.
Ex vivo expanded natural killer cells from breast cancer patients and healthy donors are highly cytotoxic against breast cancer cell lines and patient-derived tumours (2017)

NK cells from breast cancer patients can be expanded similarly to those from healthy donors, have a high cytotoxic ability against breast cancer cell lines and patient-derived tumour cells, and can be compatible with current cancer treatments to restore NK cell function in cancer patients.
Stimulatory Effect of Dermorphin, a New Synthetic Potent Opiate-Like Peptide, on Human Growth Hormone Secretion (1983)

Two new related heptapeptides (dermorphins) with potent central and peripheral opiate-like activity have been isolated from the skin of South American frogs, and have been chemically characterized as H-Tyr-D-Ala-Phe-Gly-Tyr-Pro-Ser-NH2 (dermorphin) and H-Tyr-D-Ala-Phe-Gly-Tyr-Hyp-Ser-NH2 (Hyp6-dermorphin). The response of GH to infusion of a synthetic dermorphin (5.5 micrograms/kg/min for 30 min) was studied in 9 healthy men. Dermorphin (D) significantly increased plasma growth hormone (GH) concentrations. The GH response to D was blunted by prior administration of naloxone, suggesting that D interacts with mu-type opiate receptors. However, the evaluation of the physiological significance of D-induced GH release in humans requires further study.