gebhart/patrepeval huggingface dataset:
A case for time-dependent shortest path computation in spatial networks (2010)

The problem of point-to-point shortest path computation in spatial networks is extensively studied with many approaches proposed to speed-up the computation. Most of the existing approaches make the simplifying assumption that weights (e.g., travel-time) of the network edges are constant. However, with real-world spatial networks the edge travel-times are time-dependent, where the arrival-time to an edge determines the actual travel-time of the edge. With this paper, we study the applicability of existing shortest path algorithms to real-world large time-dependent spatial networks. In addition, we evaluate the importance of considering time-dependent edge travel-times for route planning in spatial networks. We show that time-dependent shortest path computation can reduce the travel-time by 36% on average as compared to the static shortest path computation that assumes constant edge travel-times.
Hybrid-Quad-Pol SAR (2008)

Data products from a quadrature-polarized synthetic aperture radar (SAR) are fully characterized by Stokes parameters. It follows that choice of the polarization basis of either the transmitted or the received EM fields has no impact on the measurement potential of the system. Hence the polarization plan for a quad-pol SAR can be selected to optimize the radar's engineering performance. The logical conclusion is that an optimal quad-pol radar should transmit circular polarization, and receive orthogonal linear polarizations. This paper shows that there is no loss in SNR on any polarization combination in the quad-pol data products as a result of this architecture, which is a more robust result than is true for a hybrid-dual-pol radar, in which SNR preservation is true if and only if the output polarization basis is chosen to match the input (circular) basis.
Photonic packet and all-optical label switching technologies and techniques (2003)

We will review all-optical label swapping architectures, the associated packet coding techniques and label swapping technologies. Research results from a DARPA NGI program at UCSB will be described as well as results from other AOLS research programs.
The determination of minority carrier lifetimes in direct band-gap semiconductors by monitoring intensity-modulated luminescence radiation (1985)

When an extrinsic, direct band-gap semiconductor sample is irradiated by photons of an energy higher than the energy of the band gap between valence and conduction bands, excess electron-hole pairs are generated which, while diffusing through the sample, produce luminescence via radiative recombination. If, furthermore, the intensity of the impinging beam of photons is modulated sinusoidally, the luminescence radiation escaping from the sample will be phase shifted with respect to the original photon beam in a characteristic way. It will be shown that by measuring the phase shift at different modulation frequencies, the Shockley-Read-Hall lifetime of minority carriers may be ascertained. The method is nondestructive inasmuch as there is no need to fabricate p-n junctions or Ohmic contacts, nor is it necessary to remove already existing Ohmic contacts or angle lap the surface, etc., procedures often needed when determining lifetimes with the scanning electron microscope (in which case a p-n junction must be present).
Topical sulindac combined with hydrogen peroxide in the treatment of actinic keratoses. (2009)

Increased levels of ROS appear to be important in the selective killing of cancer cells in the presence of sulindac and oxidizing agents. Further studies are necessary to define the role of the combination of sulindac and oxidizing agent therapy in patients with AKs and skin cancer.
Practical Gridding Algorithms for Discrete Fracture Modeling Workflows (2010)

This paper describes grid generation algorithms for simulating flow and transport in fractured porous media. The methods are designed to only capture details of the fracture network geometry larger than the specified grid resolution. The final grids honor fractures approximately while maintaining good cell quality. Improved representations of the input geometry can be obtained by generating a new grid with finer resolution. Several numerical examples are presented in two and three dimensions that demonstrate that the algorithms are robust and practical for industrial applications.
Automatically Identifying Morphological Relations in = Machine-Readable Dictionaries (1994)

We describe an automated method for identifying classes of morphologically related words in an on-line dictionary, and for linking individual senses in the derived form to one or more senses in the base form by means of morphological relation attributes. We also present an algorithm for computing a score reflecting the system=92s certainty in these derivational links; this computation relies on the content of semantic relations associated with each sense, which are extracted automatically by parsing each sense definition and subjecting the parse structure to automated semantic analysis. By processing the entire set of headwords in the dictionary in this fashion we create a large set of directed derivational graphs, which can then be accessed by other components in our broad-coverage NLP system. Spurious or unlikely derivations are not discarded, but are rather added to the dictionary and assigned a negative score; this allows the system to handle non-standard uses of these forms.
Tunable Broadband Electro-Optic Comb Generation Using an Optically Filtered Optoelectronic Oscillator (2017)

Tunable electrooptic combs are generated in an optoelectronic oscillator that is optically filtered using a 100 000 finesse Fabry-Pérot etalon. Optical and electrical outputs of the oscillator are combined in a series of external phase modulators to generate spectrally flat, broadband optical combs. Adjustment of a variable delay in the oscillator allows for tuning of output combline spacing to harmonics of the etalon's 1.5-GHz free spectral range. Experimental results demonstrate regeneratively created electrooptic combs whose comb teeth spacing can be tuned to 7.5, 9, 10.5, and 12 GHz, with center comb tooth linewidths on the order of hundreds of Hertz. In the best case, the output electrooptic modulation comb consists of 52 individual comblines within a 10-dB amplitude deviation over a span of approximately 5 nm. Linear pulse compression is used to demonstrate ultrashort pulses with a 2.6-ps autocorrelation pulse width at a repetition rate of 10.5 GHz.
Tin-based ionic chaperone phases to improve low temperature molten sodium–NaSICON interfaces (2020)

A novel NaSn intermetallic improves critical electrochemical interfaces between molten sodium and NaSICON ceramic electrolyte at low temperatures (110 °C).
Cerenkov radiation-induced phototherapy for depth-independent cancer treatment (Conference Presentation) (2017)

Light emitted as the result of high-energy particle transport through biological tissues (Cerenkov radiation) can be exploited for noninvasive diagnostic imaging using high sensitivity scientific cameras. We have investigated the energy transfer potential of Cerenkov radiation, discovering a new phototherapeutic technique for treatment of localized and disseminated cancers. This technique, Cerenkov radiation-induced phototherapy (CRIT), like photodynamic therapy, requires the presence of both light and photosensitive agent together to induce cytotoxicity and effective cancer treatment. But unlike conventional phototherapy strategies in which tissue ablation or activation of photoactive molecules is limited to superficial structures, radiation-induced phototherapy enables phototherapy delivery to the tumor sites throughout the body. Titanium oxide nanoparticles, which produce cytotoxic reactive oxygen species upon irradiation with UV light, were targeted to tumor tissue by surface decoration with transferrin. Subsequent administration of tumor-avid radiotracer, 18-fluorodeoxyglucose (18FDG) provided localized UV light source via Cerenkov radiation. Treatment of tumor-bearing mice with the combination of Titanium nanoparticles and 18FDG resulted in effective reduction in tumor growth, while individual agents were not therapeutic. This new strategy in cancer therapy extends the reach of phototherapy beyond what was previously possible, with potential for treatment of cancer metastases and rescue from treatment resistance.
Multimodal Optical Neural imaging using VCSELs (2013)

We present a multi-modality optical brain imaging system, using a fast CCD or CMOS camera and miniature VCSEL illumination, for simultaneous imaging of tissue blood flow velocity, fluorescence, and oxygenation.
Structure of a Human Rhinovirus Complexed with its Receptor Molecule (1993)

Human rhinoviruses are one of the major causes of the common cold. They, like other picornaviruses, are icosahedral assemblies of 60 protomers that envelope a single, positive-sense strand of RNA. Each protomer consists of four polypeptides, VP1 — VP4. The three external viral proteins (VP1 — VP3) each have an approximate molecular weight of 30,000 and a similar folding topology (Rossmann et al., 1985; Hogle et al., 1985). The external viral radius is ~150 Å and the total molecular weight is roughly 8.5 × 106. A surface depression, or canyon, that is about 12 A deep and 12 – 15 Å wide, encircles each pentagonal vertex (Fig. 1C). Residues lining the canyon are more conserved than other surface residues among rhinovirus serotypes3. The most variable surface residues are at the sites of attachment of neutralizing antibodies (Rossmann et al., 1985; Sherry and Ruecker, 1985; Sherry et al., 1986). It has been proposed that the cellular receptor molecule recognized by the virus binds to conserved residues in the canyon, thus escaping neutralization by host antibodies that are too big to penetrate into that region. This hypothesis (Rossmann et al., 1985; Rossmann, 1989) is supported by site-directed mutagenesis of residues lining the canyon which alters the ability of the virus to attach to HeLa cell membranes (Colonno et al., 1988). Also, conformational changes in the floor of the canyon, produced by certain antiviral agents that bind into a pocket beneath the canyon floor, inhibit viral attachment to cellular membranes (Pevear et al., 1985). Conservation of the viral attachment site inside a surface depression has been observed for Mengo (Kim et al., 1990) and influenza virus (Weis et al., 1988; Colman et al., 1983).
Control of pressure-driven components in integrated microfluidic devices using an on-chip electrostatic microvalve (2014)

We report an electrostatic microvalve and microfluidic “pressure-amplifier” circuits used to regulate pressure-driven components (<italic>e.g.</italic>, microvalves) in microfluidic systems.
Replication of 175-Å lines and spaces in polymethylmethacrylate using x-ray lithography (1980)

A new technique for fabricating high contrast x-ray masks with simple patterns of lines and spaces less than 50 Å in width is described. The successful replication of 175-A lines and spaces in polymethylmethacrylate (PMMA) using the carbon K (45-Å) x-ray is reported. It was found that PMMA structures smaller than 150 Å in width lost their physical integrity and would not adhere to SiO2 substrates.
Abstract TP260: Synergistic Inhibitors Halt Brain and Systemic Hemorrhage After Tissue Plasminogen Activator Treatment for Ischemic Stroke (2013)

Tissue plasminogen activator (TPA) treatment for ischemic stroke is complicated by brain hemorrhage and major systemic bleeding for which there is no specific antidote. These bleeding complications reduce the therapeutic value of TPA as well as undermine its therapeutic use in eligible patients. Although the primary causes of TPA-induced hemorrhage are unknown, it may be related to the clot dissolving or fibrinolytic effects of TPA-catalyzed plasminogen activation. We examined whether specific inhibitors of TPA’s fibrin-dependent activation of plasminogen could reduce bleeding after the initiation of TPA therapy for ischemic stroke. METHODS: Hybridomas were screened for the production of monoclonal antibodies (MAbs) that inhibited TPA-induced fibrinolysis. After molecular characterization and purification, these MAbs were tested for their ability to stop brain hemorrhage and systemic bleeding triggered by TPA therapy for ischemic stroke. RESULTS: Two MAbs were selected that bound with high affinity (sub-nanomolar dissociation constants) to different epitopes on the TPA molecule. These MAbs preferentially inhibited TPA’s fibrin-dependent plasminogen activation but not other catalytic functions; they did not affect plasminogen activation by other agents. When added to human clots, these MAbs synergistically blocked TPA fibrinolysis with greater specificity and potency than a stabilized form of plasminogen activator inhibitor 1. When administered after the onset of TPA therapy for ischemic stroke, these MAbs significantly reduced brain hemorrhage (p<0.05) but did not worsen infarction. The MAbs also markedly diminished TPA-triggered tail bleeding and hemoglobin loss in anesthetized mice. CONCLUSION: TPA-induced brain and systemic bleeding in vivo is blocked by potent synergistic inhibitors of TPA’s fibrin-dependent plasminogen activation. This implies that hemorrhage is related to TPA’s fibrin-dependent mechanism of plasminogen activation and that targeted inhibitors of this process may serve as specific antidotes for TPA-associated hemorrhage.
<title>Pair-match Huffman transcoding to achieve a highly parallel variable-length decoder with two-word bit stream segmentation</title> (1997)

An MPEG-2 Main Profile, high level compliant HDTV video decoder requires a variable length decoder (VLD) that can decode macroblocks at rates exceeding 100 million code words per second. The implementation of a high-performance VLD for such an application presents a major challenge in architecture design. The capability of the VLD to process macroblocks in real-time can reduce system memory requirements and simplify decoder architectures. It is more desirable to conceive of a 'one-piece' VLD capable of operating with minimal logic and memory resources and in real-time. Parallel partitioning of the video decoder on the VLD level increases the overall complexity and memory utilization. The two-word bit stream segmentation method developed by Philips Research -- USA achieves high performance without the expense of high hardware complexity or the addition of extra system memory. In this respect, this VLD implementation is very suitable for consumer digital HDTV video decoders. However, the performance guarantee of this architecture is associated with carefully specified statistical tradeoffs. The described method of pair-mach Huffman transcoding provides the VLD performance guarantee on a macroblock level without any statistical tradeoffs. Applied to the main body of the bit stream, this method produces excellent performance results for both consumer and professional MPEG profiles.
Reservoir-Based Fracture Optimization Approach (2004)

A new methodology to obtain the optimum fracture treatment design for a wide range of reservoir conditions has been developed and successfully implemented. The approach discussed here significantly reduces the time required to evaluate an optimum design and limits the materials considered to only those that are appropriate for the reservoir conditions. These improvements make it an ideal methodology for real-time re-design of fracture treatments after feedback from minifrac data has been implemented.This innovative fracture design methodology has capability to determine appropriate fracture conductivity and an economic optimum fracture length while reconciling these with actual fracture growth behavior in the reservoir. The technique incorporates the following simple, automated steps: Selects the most cost-effective fluid that will meet a minimum apparent viscosity requirement at a specified shear rate and temperature condition from a large industry fluid library to ensure that the proppant will be placed within the pay zone.Selects a proppant that will provide the required fracture conductivity at the cheapest cost from a large industry library.Determines the proppant concentration that is required at the wellbore to achieve a user-specified dimensionless conductivity criterion for a range of fracture lengths.Evaluates economic criteria such as net present value (NPV) and return on investment (ROI) for different fracture lengths by comparing fracture treatment cost and revenues from production response.Determines the optimum fracture conductivity profile that will have a uniform pressure drop down the fracture. The conductivity is adjusted for potential losses from non-Darcy and multi-phase flow, gel damage, embedment, and other proppant damage effects.Iterates a fracture treatment schedule that will result in the best fit of the optimum conductivity profile.The methodology can help optimize fracture treatments in any type of environment. The technique is simple and can be run quickly in a real-time environment after a minifrac is conducted to make changes to the propped fracture treatment. The procedure has been implemented in a commercially available fracture design program.
Hearing aid (1984)

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 Katsunobu Miyahra, Nobuyuki Matsumoto; Hearing aid. J. Acoust. Soc. Am. 1 November 1984; 76 (5): 1601. https://doi.org/10.1121/1.391633 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 ContentAcoustical Society of AmericaThe Journal of the Acoustical Society of America Search Advanced Search |Citation Search
ChemInform Abstract: BIS‐BASIC‐SUBSTITUTED POLYCYCLIC AROMATIC COMPOUNDS, A NEW CLASS OF ANTIVIRAL AGENTS PART 5, BIS‐BASIC ETHERS OF ANTHRAQUINONE AND BISALKAMINE ESTERS OF ANTHRAQUINONEDICARBOXYLIC ACIDS (1975)

Abstract Aus den entsprechenden Anthrachinon‐dicarbonsäuren (I) bzw. Dihydroxy‐anthrachinonen (III) entstehen die basischen Ester (II) bzw. die basischen Äther (IV).
Forecasting Spatiotemporal Impact of Traffic Incidents on Road Networks (2013)

The advances in sensor technologies enable real-time collection of high-fidelity spatiotemporal data on transportation networks of major cities. In this paper, using two real-world transportation datasets: 1) incident data and 2) traffic data, we address the problem of predicting and quantifying the impact of traffic incidents. Traffic incidents include any non-recurring events on road networks, including accidents, weather hazard, road construction or work zone closures. By analyzing archived incident data, we classify incidents based on their features (e.g., time, location, type of incident). Subsequently, we model the impact of each incident class on its surrounding traffic by analyzing the archived traffic data at the time and location of the incidents. Consequently, in real-time, if we observe a similar incident (from real-time incident data), we can predict and quantify its impact on the surrounding traffic using our developed models. This information, in turn, can help drivers to effectively avoid impacted areas in real-time. To be useful for such real-time navigation application, and unlike current approaches, we study the dynamic behavior of incidents and model the impact as a quantitative time varying spatial span. In addition to utilizing incident features, we improve our classification approach further by analyzing traffic density around the incident area and the initial behavior of the incident. We evaluated our approach with very large traffic and incident datasets collected from the road networks of Los Angeles County and the results show that we can improve our baseline approach, which solely relies on incident features, by up to 45%.
Analysis of blue and red laser performance of the infrared-pumped praseodymium-doped fluoride fiber laser (1994)

The laser performance at 491 and 635 nm of praseodymium-doped fluorozirconate fiber pumped at 1.01 μm and 835 nm is described and is interpreted with analytical solutions to the rate equations. Spectroscopic measurements of the absorption and the emission cross sections are presented, and the values are shown to be consistent with the observed lasing performance. The analytical model is shown to be a reliable indication of the optimum length of fiber for operation on the three-level 491-nm transition.
Observation of Dynamic Strain Hardening in Polymer Nanocomposites (2011)

Most materials respond either elastically or inelastically to applied stress, while repeated loading can result in mechanical fatigue. Conversely, bones and other biomechanical tissues have the ability to strengthen when subjected to recurring elastic stress. The cyclic compressive loading of vertically aligned carbon nanotube/poly(dimethylsiloxane) nanocomposites has revealed a self-stiffening response previously unseen in synthetic materials. This behavior results in a permanent increase in stiffness that continues until the dynamic stress is removed and resumes when it is reapplied. The effect is also specific to dynamic loads, similar to the localized self-strengthening that occurs in biological structures. These observations help to elucidate the complex interactions between matrix materials and nanostructures, and control over this mechanism could lead to the development of adaptable structural materials and active, load-bearing artificial connective tissues.
Global Load Balancing of Zero-bandwidth TE LSPs in MPLS Networks (2009)

An iterative algorithm is proposed to achieve global load balancing of zero-bandwidth TE LSPs. Results show that the proposed algorithm closely approximates the ideal global load balancing result, without resorting to additional routing protocol extensions.
Synthesis and Evaluation of Potassium Hexatitanate Fibers with Negligible Leachability (1995)

A conversion process from potassium tetratitanate fibers into potassium hexatitanate was investigated to develop potassium hexatitanate fibers with negligible leachability which are usable as a filler for fiber-rein-forced polyester thermoplastic resins. Calcined potassium tetratitanate fibers were dispersed in water. By titrating the above mentioned suspension with an aqueous HCI solution to adjust the value of ([K+]/[H3O+])2/3=5.71×105 at 60°C, the fibers with TiO2/K2O=5.95 was obtained. The product thus obtained was heated at 1000°C for 30min, then potassium hexatitanate fibers having a tunnel structure were obtained. Then, the water soluble potassium was further removed with an aqueous HCI solution. Potassium hexatitanate fibers having a tunnel structure whose molar ratio of TiO2/K2O was 6.0 was obtainable. Water soluble potassium thus prepared was only 4 mass ppm. The potassium hexatitanate fibers prepared by the novel method developed by the present authors were found useful as a reinforcing material for polycarbonate which has been known to be vulnerable to soluble potassium.