gebhart/patrepeval huggingface dataset:
A Catalytic Plasma Exhaust Purification System (1988)

For the plasma exhaust clean-up of a fusion reactor a process concept based on the hydrogen isotope purification through palladium/silver alloy permeators combined with selective catalytic reaction steps is proposed, which avoids intermediate conversion of impurities into water. To recover tritium from tritiated impurities ammonia is decomposed into the elements inside the permeators; water is reduced catalytically by carbon monoxide into carbon dioxide and hydrogen; and hydrocarbons are cracked into carbon and hydrogen on a nickel catalyst. Experimental results on the reactivity, consumption and regeneration of the catalysts are given. The permeation rate of hydrogen through palladium/silver alloy was found to be largely independent of the impurities CO, CO2, H2O and CH4. Technological requirements in view of NET are discussed.
Human breast milk contains procathepsin D--detection by specific antibodies. (1993)

The presence of the zymogen of cathepsin D in human milk was detected using antibodies specific for the proenzyme and by the proteolytic activity at low pH. The antibodies were raised against a synthetic propeptide of human cathepsin D and were tested using immunoprecipitations and western blots of samples from different breast cancer cell lines as well as cytosol fractions of human breast cancer tissues. In all experiments these antibodies recognized specifically procathepsin D. Procathepsin D from human milk was partially activated at low pH. The activity was monitored using hemoglobin 14C proteolytic assay, and it was abolished by pepstatin A--a specific inhibitor of aspartic proteinases. Western blots did not reveal presence of cathepsin B or cathepsin H. These data indicate specific secretion of cathepsin D in human breast milk.
Evaluation of Synchrotron X-Rays for Digital Subtraction Coronary Angiography (1984)

The intensity and tunability of synchrotron X-ray beams are highly suited to the non-invasive detection of iodine by K-edge digital subtraction angiography. An imnaging system developed for in vivo canine studies is described. Considerations relating to an expanded system for human subject studies are discussed.
Invited keynote possibilities for microwave/far infrared cavities and waveguides using high temperature superconductors (1987)

Possibilities for use of high temperature superconductors in microwave/far infrared resonators and waveguides are described. Relative to conventional superconductors, the use of high temperature superconductors could remove the constraint of relatively low energy gaps and provide larger thermal margins and more effective cooling. The higher critical magnetic fields may also be important for an increased range of operation. These features could be used to improve performance of present superconducting microwave cavities and to provide new applications at both microwave frequencies and at much higher frequencies. Constraints that may inhibit development include a need for superconducting properties over a high fraction of the surface, limits on critical RF fields and the effect of D.C. magnetic fields.
T-Cell Receptor Gene Therapy for Human Papillomavirus–Associated Epithelial Cancers: A First-in-Human, Phase I/II Study (2019)

Engineered T cells can induce regression of epithelial cancer. Tumor resistance was observed in the context of T-cell programmed death-1 expression and defects in interferon gamma and antigen presentation pathway components. These findings have important implications for development of cellular therapy in epithelial cancers.
Infection-Resistant Alloplasts (2000)

Prosthesis-related infection accounts for nearly half of nosocomial infections, resulting in significant morbidity, mortality, prolonged hospitalization, and higher healthcare costs. Although numerous antimicrobial-coated surfaces have been suggested to guard against prosthesis-related infection, only a few, such as minocylcine plus rifampin, are clinically protective. The differences in clinical efficacy can be attributed at least in part to differences in the magnitude of leaching of the antimicrobial agent off the surface. There is a pressing need to explore the clinical efficacy of antimicrobial surfaces suitable for use in devices intended for long-term use.
Microstrip fractal-shaped antennas: a review (2007)

A review of electromagnetic features of microstrip antennas using fractal geometries is presented divided in four main areas: multi-frequency antennas, combination of multi- frequency with broadband techniques, high-directivity patches, and arrays with microstrip elements operating in localized modes. (7 pages)
Device Characteristics and Equivalent Circuits for NMOS Gate-to-Drain Soft and Hard Breakdown in Polysilicon/SiON Gate Stacks (2011)

In state-of-the-art technologies, the currents in all n-channel field-effect transistor device terminals can be severely degraded when a soft or hard dielectric breakdown event occurs from gate-to-drain. The equivalent circuits that are commonly used for modeling gate-to-drain breakdown do not adequately capture all of the salient features of post breakdown device characteristics and can yield results that are overly optimistic. We present an equivalent circuit comprehending both soft and hard breakdown that can be used to accurately model gate, drain, and source currents following a breakdown event from gate-to-drain.
Improving the nutritive value of lignocellulosics: The synergistic effects between alkaline hydrogen peroxide and extrusion treatments (1989)

A major underutilized substrate for ruminant animal feed is the roughage and by-product feedstuffs which are high in structural carbohydrate concentration. Grain residues are the principle farm byproducts in the United States. However, land which is used for grain production is particularly susceptible to soil erosion and, therefore, it would be a significant advance if more land could be devoted to the growing of erosion-resistant grasses or other plants which could serve as a cash crop for farmers. If a means could be developed to utilize such erosion-resistant grasses and plants to provide feed for ruminants, this would represent an incentive for farmers to devote a portion of their land to the growing of plants which could help protect the environment. A problem with lignocellulosic agricultural by-products and erosion resistant grasses is that availability of metabolic energy and other nutrients is fairly low.
Rapid On-Demand Synthesis of Lomustine under Continuous Flow Conditions (2019)

Lomustine, an important agent for treatment of brain tumors and Hodgkin’s lymphoma, has been synthesized using continuous flow methodology. Desorption electrospray ionization mass spectrometry (DESI-MS) was used to quickly explore a large number of reaction conditions for one of the reaction steps and guide the efficient translation of optimized conditions to continuous lomustine production. Using only four inexpensive commercially available starting materials and a total residence time of 9 min, lomustine was prepared via a linear sequence of two chemical reactions performed separately in two telescoped flow reactors. Sequential offline extraction and filtration resulted in a 63% overall yield of pure lomustine at a production rate of 110 mg/h. The primary advantages of this approach are the rapid manufacture of lomustine with two telescoped steps to avoid isolation and purification of a labile intermediate and the mild conditions used in the nitrosylation step, thereby significantly increasing the purity and yield of this active pharmaceutical ingredient.
Selective magnetic resonance imaging of magnetic nanoparticles by acoustically induced rotary saturation (2014)

AIRS is a promising method capable of using acoustic vibrations to modulate the contrast from iron oxide nanoparticles and thus perform selective detection of the contrast agents, potentially enabling more accurate visualization of contrast agents in clinical and research settings.
Patterned nickel interlayers for enhanced silver wetting, spreading and adhesion on ceramic substrates (2021)

The metal current collectors used in electronic, energy conversion, and energy storage devices often have difficulty wetting and adhering to ceramic substrates. Here, a novel Particle Interlayer Directed Wetting and Spreading (PIDWAS) technique is demonstrated that utilizes 1) the low wetting angle of silver on nickel and 2) the high work of adhesion between nickel and various ceramics to produce well-adhered, self-assembled silver patterns on ceramics not normally wet by silver. This is achieved by partially sintering nickel patterns and melt infiltrating either 1) locally-applied silver or 2) silver that simultaneously dewets the bare ceramic and laterally spreads through the porous nickel network. The resulting Ag-Ni patterns have higher ceramic adhesion strengths, higher densities, and similar electronic resistivities to those made using commercially-available silver circuit pastes. Further, these dense Ag-Ni patterns can be produced without externally-applied pressure, making them desirable for circuit, sealing, die-attach, joining and other applications.
Long range iris acquisition system for stationary and mobile subjects (2011)

Most iris based biometric systems require a lot of co- operation from the users so that iris images of acceptable quality may be acquired. Features from these may then be used for recognition purposes. Relatively fewer works in literature address the question of less cooperative iris acquisition systems in order to reduce constraints on users. In this paper, we describe our ongoing work in designing and developing such a system. It is capable of capturing images of the iris up to distances of 8 meters with a resolution of 200 pixels across the diameter. If the resolution requirement is decreased to 150 pixels, then the same system may be used to capture images from up to 12 meters. We have incorporated velocity estimation and focus tracking modules so that images may be acquired from subjects on the move as well. We describe the various components that make up the system, including the lenses used, the imaging sensor, our auto-focus function and velocity estimation module. All the hardware components are Commercial Off The Shelf (COTS) with little or no modifications. We also present preliminary iris acquisition results using our system for both stationary and mobile subjects.
Laser action from syn-(methyl,methyl) bimane (1986)

Under the flashlamp excitation from an aqueous solution of syn‐(methyl,methyl)bimane laser action was observed at 504 nm. The absorption, fluorescence, and triplet‐triplet absorption spectra of this compound were also recorded. This compound showed good photochemical stability. The laser action properties of this new laser dye were compared with those of Coumarin 30.
Intonation-varying audio output device in electronic translator (1988)

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 Akira Tanimoto, Mitsuhiro Saiji; Intonation‐varying audio output device in electronic translator. J. Acoust. Soc. Am. 1 July 1988; 84 (1): 465. https://doi.org/10.1121/1.396858 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
Injectable Lignin-<i>co</i>-Gelatin Cryogels with Antioxidant and Antibacterial Properties for Biomedical Applications (2021)

For several biomedical applications, it is essential to develop novel bioactive materials. Such biomaterials could potentially improve wound healing, prevent infections, or be used in immunoengineering. For example, bioactive materials that reduce oxidative stress without relying on antibiotics and other drugs could be beneficial. Hydrogel-based biomaterials, especially those derived from natural polymers, have been regarded as one of the most promising scaffolds for biomedical research. These multifunctional scaffolds can exhibit high water adsorption capacity, biocompatibility, and biomechanical properties that can match native tissues. Cryogels are a special type of hydrogels in which polymers are cross-linked around ice crystals. As a result, cryogels exhibit unique physical features, including a macroporous and interconnected network, flexibility, shape-memory properties, and syringe injectability. Herein, we developed a multifunctional, i.e., antibacterial, antioxidant, and injectable cryogel by combining lignin with gelatin. The cryogel with 0.2% lignin showed a compressive modulus of 25 kPa and a compressive stress of 140 kPa at 80% strain, which is, respectively, 1.8 and 7 times higher than those of the pure gelatin cryogels. Meanwhile, such a cryogel formulation could completely recover its shape after compression up to 90% and was needle-injectable. Additionally, the lignin-<i>co</i>-gelatin cryogel with 0.1-0.2 lignin showed 8-10 mm of inhibition zone against the most common surgical site infection-associated pathogenic bacteria. Furthermore, lignin-<i>co</i>-gelatin cryogel was found to scavenge free radicals and have good cytocompatibility, and the cryogels with up to 0.2% lignin minimally activate naïve mouse bone marrow-derived dendritic cells. Overall, the current approach shows great promise for the design of bioresource-based multifunctional cryogels for a wide range of biomedical applications.
Surgical Sutures with Porous Sheaths for the Sustained Release of Growth Factors (2016)

Surgical sutures with highly porous sheaths are developed using a swelling and freeze-drying procedure without compromising their mechanical properties. The modified sutures show a high capacity for loading biofactors and are able to release the loaded biofactors in a sustained manner.
STACL: Simultaneous Translation with Integrated Anticipation and Controllable Latency (2018)

Simultaneous translation, which translates sentences before they are
finished, is useful in many scenarios but is notoriously difficult due to
word-order differences and simultaneity requirements. We introduce a very
simple yet surprisingly effective `wait-k' model trained to generate the target
sentence concurrently with the source sentence, but always k words behind, for
any given k. This framework seamlessly integrates anticipation and translation
in a single model that involves only minor changes to the existing neural
translation framework. Experiments on Chinese-to-English simultaneous
translation achieve a 5-word latency with 3.4 (single-ref) BLEU points
degradation in quality compared to full-sentence non-simultaneous translation.
We also formulate a new latency metric that addresses deficiencies in previous
ones.
In-line phase modulators using coaxial thick lead zirconate titanate coated optical fibers (1996)

Thick piezoelectric lead zirconate titanate (PZT) films (ceramic–ceramic 0–3 composite films), using a new sol-gel based process, have been produced and used to coaxially coat optical fibers. Coated PZT of up to 200 μm thick and 10 cm long have been achieved. Using thick PZT coated single mode optical fibers, in-line phase modulators are designed, built and tested. Theoretical and experimental investigations of such phase modulators are also presented. The measured phase modulation ranges from hundreds of kilohertz to several megahertz.
Security certificate revocation list distribution for vanet (2008)

In a VANET, a certificate authority issues keys andcertificates to vehicles. Each vehicle distributes these certificates to other VANET participants and subsequently signs messages against these certificates. If the certificate authority needs to revoke a certificate (e.g. due to a breach of trust), it universally distributes a certificate revocation list. We propose a method for car-to-car epidemic distribution of certificate revocation lists which is quick and efficient. Large-scale simulations based on realistic mobility traces show that this epidemic model significantly outperforms methods that only employ road side unit distribution points.
Development of a diagnostic test for Johne's disease using a DNA hybridization probe (1989)

A DNA probe, M13 mpHAW71, that detects Mycobacterium paratuberculosis in the fecal material of infected animals was developed for use in the diagnosis of Johne's disease. The probe detected as few as 10(5) M. paratuberculosis when hybridized under stringent conditions to total genomic DNA purified from bovine fecal material. When the probe was used diagnostically, it did not differentiate members of the Mycobacterium avium-M. intracellulare-M. paratuberculosis complex. Compared with culturing, the DNA probe identified 34.4% more mycobacterium-containing fecal samples, and testing took only 72 h to complete.
A physically based, probabilistic model for ultrasonic images incorporating shape, microstructure, and system characteristics (2001)

Recent successes with Bayesian methods for analysis of shape in medical images have motivated our development of a shape-based data likelihood for ultrasound, the foundation of which is a computationally feasible, pixel-based, probabilistic image model. Previous probabilistic models for ultrasound generally assume an analytic form, e.g., Rayleigh, Rician, K, Generalized K, etc., then attempt to fit data to the model. Assumptions and intensive computation inherent in such an approach make it unsuitable for our purposes. In the pursuit of a new model, we have described previously a physical model for image formation that incorporates the imaging system characteristics, the surface shape, and the surface microstructure. That physical model was validated via a visual comparison of simulated and actual images of a cadaveric vertebra. In this work, a random phasor sum representation of the physical model provides the basis for a probabilistic form. In contrast to existing probabilistic models, we compute the amplitude mean and variance directly from the physical model. These statistics can be displayed as images to characterize the tissue, but, more importantly, they permit the subsequent assignment of a suitable density function to each pixel for the purposes of constructing a data likelihood. The order of these steps, i.e., first computing the statistics and then assigning a density function, permits the inclusion of the local surface shape, the surface microstructure, and the system characteristics at every image pixel without violating the physical model. Currently, the value of the SNR0, the ratio of the mean to the standard deviation, is used to estimate whether a pixel is Rayleigh- or non-Rayleigh-distributed. This assessment forms the basis for a data likelihood constructed as a product of Rayleigh and Gaussian density functions describing the individual image pixels.
Coverage-Mediated Suppression of Blinking in Solid State Quantum Dot Conjugated Organic Composite Nanostructures (2006)

Size-correlated single-molecule fluorescence measurements on CdSe quantum dots functionalized with oligo(phenylene vinylene) (OPV) ligands exhibit modified fluorescence intermittency (blinking) statistics that are highly sensitive to the degree of ligand coverage on the quantum dot surface. As evidenced by a distinct surface height signature, fully covered CdSe-OPV nanostructures (approximately 25 ligands) show complete suppression of blinking in the solid state on an integration time scale of 1 s. Some access to dark states is observed on finer time scales (100 ms) with average persistence times significantly shorter than those from ZnS-capped CdSe quantum dots. This effect is interpreted as resulting from charge transport from photoexcited OPV into vacant trap sites on the quantum dot surface. These results suggest exciting new applications of composite quantum dot/organic systems in optoelectronic systems.
Fast submatch extraction using OBDDs (2012)

Network-based intrusion detection systems (NIDS) commonly use pattern languages to identify packets of interest. Similarly, security information and event management (SIEM) systems rely on pattern languages for real-time analysis of security alerts and event logs. Both NIDS and SIEM systems use pattern languages extended from regular expressions. One such extension, the submatch construct, allows the extraction of substrings from a string matching a pattern. Existing solutions for submatch extraction are based on non-deterministic finite automata (NFAs) or recursive backtracking. NFA-based algorithms are time-inefficient. Recursive backtracking algorithms perform poorly on pathological inputs generated by algorithmic complexity attacks. We propose a new approach for submatch extraction that uses ordered binary decision diagrams (OBDDs) to represent and operate pattern matching. Our evaluation using patterns from the Snort HTTP rule set and a commercial SIEM system shows that our approach achieves its ideal performance when patterns are combined. In the best case, our approach is faster than RE2 and PCRE by one to two orders of magnitude.
Evolutionary Decision Support for Distributed Virtual Design in Modular Product Manufacturing (1999)

Superior design-manufacturing-supplier decisions are critical to the survival of modern enterprises that seek to compete in a dynamic global marketplace. An evolutionary decision support system (virtual design environment) that supports such decision-making is introduced. The VDE framework utilizes evolutionary agents as program entities that generate and execute queries among distributed and heterogeneous computing applications and information resources. Evolutionary agents support a global optimization of design-manufacturing-supplier planning decisions by retrieving appropriate information from distributed information repositories, and fostering the systematic selection of planning alternatives that reduce cost and increase throughput. This paper introduces a general formulation of the design-manufacturing-supplier planning decision problem that is applicable to a variety of assembly-oriented design-manufacturing domains. We present a description of the prototype VDE that has been used to examine planning decisions for a real commercial electronic circuit board product (Pitney Bowes).