gebhart/patrepeval huggingface dataset:
Creation and control of handover zone using antenna radiation pattern for high-speed train communications in unidirectional networks (2016)

In order to successfully perform the break-before-make handover for high-speed train (HST) communications in unidirectional networks, it is well agreed that the handover zone should be created. In this paper, handover zone creation and control methods are proposed. Instead of intentionally create an engineered handover zone by overlapping the coverages of adjacent cells, the nature of antenna radiation pattern is adopted for creating the proposed handover zone. The analysis and simulation results employing the system parameters of mobile hotspot network (MHN) show that the proposed handover zone can be easily controlled by setting the parameters corresponding to the antenna radiation pattern, which enables its flexible use for handover in HST communication networks.
Fullerene-Styrene Random Copolymers. Novel Optical Properties (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleFullerene-Styrene Random Copolymers. Novel Optical PropertiesChristopher E. Bunker, Glen E. Lawson, and Ya-Ping SunCite this: Macromolecules 1995, 28, 10, 3744–3746Publication Date (Print):May 1, 1995Publication History Published online1 May 2002Published inissue 1 May 1995https://pubs.acs.org/doi/10.1021/ma00114a034https://doi.org/10.1021/ma00114a034research-articleACS PublicationsRequest reuse permissionsArticle Views406Altmetric-Citations130LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Fast linear programming through transprecision computing on small and sparse data (2020)

A plethora of program analysis and optimization techniques rely on linear programming at their heart. However, such techniques are often considered too slow for production use. While today’s best solvers are optimized for complex problems with thousands of dimensions, linear programming, as used in compilers, is typically applied to small and seemingly trivial problems, but to many instances in a single compilation run. As a result, compilers do not benefit from decades of research on optimizing large-scale linear programming. We design a simplex solver targeted at compilers. A novel theory of transprecision computation applied from individual elements to full data-structures provides the computational foundation. By carefully combining it with optimized representations for small and sparse matrices and specialized small-coefficient algorithms, we (1) reduce memory traffic, (2) exploit wide vectors, and (3) use low-precision arithmetic units effectively. We evaluate our work by embedding our solver into a state-of-the-art integer set library and implement one essential operation, coalescing, on top of our transprecision solver. Our evaluation shows more than an order-of-magnitude speedup on the core simplex pivot operation and a mean speedup of 3.2x (vs. GMP) and 4.6x (vs. IMath) for the optimized coalescing operation. Our results demonstrate that our optimizations exploit the wide SIMD instructions of modern microarchitectures effectively. We expect our work to provide foundations for a future integer set library that uses transprecision arithmetic to accelerate compiler analyses.
Anticancer Agents Suppressive for Adult Parasites of Filariasis in Mongolian Jirds (2000)

Eight chemical structures not previously reported to possess antifilarial activity have been identified. A total of 79 compounds with anticancer properties were evaluated for possible macrofilaricidal activity against Brugia pahangi and Acanthocheilonema viteae transplanted into male Mongolian jirds (Meriones unguiculatus). All eight active compounds were suppressive for the onchocerciasis type (Acanthocheilonema viteae) of the disease. None was macrofilaricidal for the lymphatic form (Brugia pahangi). These new structures may represent a nucleus around which effective drugs can be synthesized.
Supplementary Material from Epigenetic Regulator Smchd1 Functions as a Tumor Suppressor (2023)

&lt;p&gt;Supplementary Material PDF file - 709K, Supplementary Tables 1 and 2, supplementary methods, supplementary figure legends and supplementary figures&lt;/p&gt;
Contrastive analysis of dynamics modelling and parameters identification for a flexible finger joint based on cable-driven series elastic actuator (2017)

This paper presents a study on the dynamics modelling and parameters identification of a flexible finger joint, which is based on Cable-Driven Series Elastic Actuator (CDSEA). This kind of CDSEA includes of a pair of driving and returning cable modules, which provides the driving torque of a small finger joint. The driving cable is driven by a DC motor and miniature ballscrew, and the returning cable is back driven by a linear spring. The wirerope is simplified as mass-spring-damper system model, and considering the local dynamics characters and different inputting sensors data, six kinds of dynamic models are presented for the flexible finger joint in this study. Furthermore, the dynamic models are identified using the inverse dynamic identification model with least square method, and the contrastive analysis of the experimental results show that the raster displacement detection system can help to realize good performance and accuracy of parameters identification, and these six kinds of dynamic models can be furtherly used in the position control, external force estimation and force control of the flexible finger joint based on CDSEA.
Low frequency acoustic test cell for the evaluation of circumaural headsets and hearing protection (2002)

Active noise reduction (ANR) technology, based on feedback signal processing, is being applied in commercial communication headsets and provides noise reductions up to 10-20 dB between 50 Hz and 400 Hz. There are, however, many acoustical designs and computational difficulties associated with feedback designs which limit their performance. Current research in feedforward design offers the opportunity for significant improvement in ANR performance. To support this current research in ANR feedforward algorithm development and evaluation, a low frequency acoustic test cell (LFATC) has been designed to provide a uniform and precisely controlled low frequency acoustic measurement environment. The LFATC design is based on the original work of E.A.G. Shaw and G.J. Theisson at the National Research Council of Canada and a prototype LFATC developed by J.G. Ryan, E.A.G. Shaw, A. J. Brammer, and T.G. Zang. The design analysis of the LFATC is based both on a lumped parameter model and a one-dimensional standing wave model. The acoustic performance of this test cell, including a simple floor vibration isolation system, is evaluated experimentally over a wide range of sound pressure levels. A representative set of measurements with a prototype ANR headset illustrates the application of the LFATC.
The International Atomic Energy Agency's Activities in Radiation Medicine and Cancer: Promoting Global Health through Diplomacy (2012)

Global health has been an issue of seemingly low political importance in comparison with issues that have direct bearing on countries' national security. Recently, health has experienced a "political revolution" or a rise in political importance. Today, we face substantial global health challenges, from the spread of infectious disease, gaps in basic maternal and child health care, to the globalization of cancer. A recent estimate states that the "overall lifetime risk of developing cancer (both sexes) is expected to rise from more than one in three to one in two by 2015." These issues pose significant threats to international health security. To successfully combat these grave challenges, the international community must embrace and engage in global health diplomacy, defined by scholars Thomas Novotny and Vicanne Adams as a political activity aimed at improving global health, while at the same time maintaining and strengthening international relations. The IAEA (International Atomic Energy Agency) is an international organization with a unique mandate to "accelerate and enlarge the contribution of atomic energy to peace, health, and prosperity throughout the world." This article discusses global health diplomacy, reviews the IAEA's program activities in human health by focusing on radiation medicine and cancer, and the peaceful applications of atomic energy within the context of global health diplomacy.
Ultrafast Surface Imaging With an Increased Spatial Resolution Based on Polarization-Division Multiplexing (2015)

Optical time stretch has been employed for ultrafast optical imaging based on space-to-wavelength-to-time mapping. However, temporal overlap between two adjacent time-stretched pulses is a disadvantageous factor that limits the spatial resolution, or the frame rate has to be reduced by reducing the pulse repetition rate to avoid the temporal overlap. To increase the spatial resolution without reducing the frame rate, we propose a novel technique based on polarization-division multiplexing, using a polarization modulator to generate two polarization interleaved pulse trains. Since two adjacent optical pulses are orthogonally polarized, the spacing between two adjacent pulses for one polarization direction is doubled, and the spatial resolution is doubled by using a dispersive element with two times the dispersion. The proposed approach is experimentally evaluated. An imaging system with an increased spatial resolution is demonstrated.
An iterative approach to tensor tomography (2002)

Investigates the iterative reconstruction of the tensor field in magnetic resonance imaging (MRI) diffusion tensor imaging. In this application, projections represent line-integrals of the spin density function weighted by an exponential term of another scalar function, which is a function diffusion tensor components. Assuming a known spin density function, the reconstruction problem becomes the task of inverting a modified exponential Radon transform. An iterative method was developed for inverting the transform. A computer generated phantom was used to simulate the diffusion tensor in a cardiac MRI study. The diffusion model in this study depends upon the fiber structure of the myocardium. Computer simulations verify that the proposed method provides accurate reconstructions from noise-free and noisy projection data.
Ta3N5 Nanowire Bundles as Visible‐Light‐Responsive Photoanodes (2013)

A tiny bundle of joy: Ta3N5 nanowire bundles (NWBs) were synthesized using a molten salt reaction followed by nitridation. The bundles consisted of single crystalline Ta3N5 nanowires which aligned along the same crystallographic growth direction. O2 evolution and photoelectrochemical measurements demonstrate the potential of Ta3N5 NWBs as a visible-light-responsive photoanode. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.
Influence of Unstable Non-equilibrium Liquid Iron Oxide on Clustering of Alumina Particles in Steel (2013)

Alumina clusters extracted from molten steel and from a cast slab at our plant were analyzed by SEM and TEM. It was found that a small amount of liquid FeO could accelerate the clustering of alumina inclusions in aluminum-killed steel because of the strong liquid-capillary negative pressure of liquid FeO. The sources of the FeO are most likely oxygen contamination from ferroalloy additives, residual steel adhering to the refractory surfaces of ladles and vessels, and air entrainment.
Scientific Goals for a Space-Borne Far-Infrared Spatial-spectral Interferometer (2013)

Investigations of star and planetary system formation and galaxy evolution require space-borne far infrared observations with high sensitivity and angular resolution. This can be achieved with double Fourier spatial-spectral interferometer with cooled apertures.
The effect of the combination of erythromycin with new beta-lactam antibiotics against gram-negative aerobic respiratory pathogens. (1986)

The effect of erythromycin on the in vitro activity of cefotaxime, ceftizoxime, cefoperazone, moxalactam, ceftazidime, cefmenoxime, aztreonam, imipenem, piperacillin, and gentamicin against 89 bacteria isolated from sputum and tracheal aspirates of patients admitted to intensive care units was evaluated. There were 30 Pseudomonas aeruginosa, 27 Klebsiella pneumoniae, 9 Enterobacter cloacae, 5 Escherichia coli, 4 Enterobacter aerogenes, 3 each of Klebsiella oxytoca, Pseudomonas maltophilia, Serratia marcescens, 2 each of Morganella morganii, Acinetobacter anitratus; 1 Proteus mirabilis. All isolates were resistant to erythromycin. Organisms were screened for synergy by fixed erythromycin concentration at 1, 8 and 16 micrograms/ml. There were 16 isolates that showed a greater than four-fold difference in MICs. These strains were analyzed by the checkerboard broth method. No antagonism was seen for any drug combination with erythromycin. One Enterobacter cloacae showed synergy of ceftizoxime and erythromycin, and 1 E. cloacae showed synergy with cefotaxime. Addition was found for 2 P. aeruginosa, 1 each E. aerogenes, E. coli, P. mirabilis, K. pneumoniae and S. marcescens. At concentrations of erythromycin achievable in blood or pulmonary tissue, the activity of newer beta-lactams and gentamicin is not altered by erythromycin.
ChemInform Abstract: Monocyclic Analogues of the μ‐Opioid Agonist 3,8‐Diazabicyclo(3.2.1) octanes: Synthesis, Modeling, and Activity. (1996)

Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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.
Recent advances in 1-3 piezoelectric polymer composite transducer technology for AUV/UUV acoustic imaging applications (2002)

The use of 1-3 piezoelectric polymer composite has been studied over the years under various U.S. Navy funded transducer research programs. As a transduction material, the 1-3 piezoelectric composite offers many advantages for autonomous/unmanned undersea vehicles (AUV/UUV) imaging array construction. Broad bandwidth, high transmit/receive response, low cost of fabrication, mechanical ruggedness, and the ability to form conformal shapes, make this material both a unique and intriguing medium for the sonar transducer designer. The 1-3 piezocomposite panels are comprised of several piezoceramic rods aligned vertically through the panel's thickness with each rod surrounded with a specific polymer epoxy. Volume fractions of ceramic to polymer can vary up to 50% with panel thickness ranging between fractions of a millimeter (2-4 MHz) to 25 millimeters (50-70 kHz). This presentation elucidates the application of this unique material to a variety of practical transducer designs and describes some of the device demonstrations along with measured performance data.
Effect of 1-alkyl- or 1-alkenylazacycloalkanone derivatives on penetration of mitomycin C through rat skin. (1987)

The effects of five new compounds containing an azacyclo ring and a terpene or an alkyl chain, i. e., 1-geranylazacyclohexan-2-one (6GU), 1- (3, 7-dimethyloctyl) azacycloheptan-2-one (7GS), 1- (3, 7, 11-trimethyldodecyl) azacycloheptan-2-one (7FS), 1-geranylgeranylazacycloheptan-2-one (7GGU), and 1-geranylgeranylazacyclohexan-2-one (6GGU), on percutaneous penetration of mitomycin C (MMC) through rat skin in vitro were investigated in comparison with those of 1-farnesylazacycloheptan-2-one (7FU) and 1-dodecylazacycloheptan-2-one (Azone). In an in vitro diffusion experiment, 6GU, 7GS, 7FU, 7FS, 7GGU, 6GGU, and Azone significantly enhanced MMC penetration through rat skin compared with the control. The size of the azacyclo ring had little effect on the potency of these penetration enhancers. On the other hand, the changes in the length of the hydrophobic chain resulted in some variation in the activity of these compounds. Azone and 7FU, which have a hydrophobic chain of length of twelve carbons, were the most effective among enhancers with an azacycloheptanone ring, and 7GGU, with the longest hydrophobic chain, showed the weakest MMC penetration-enhancing activity. Among the compounds with an azacyclohexanone ring, 6GGU (with a longer hydrophobic chain) was more effective than 6GU (with a shorter hydrophobic chain). Saturation of the double bonds of the farnesyl group of 7FU decreased the enhancing ability.
Herbivory by a Phloem-Feeding Insect Inhibits Floral Volatile Production (2012)

There is extensive knowledge on the effects of insect herbivory on volatile emission from vegetative tissue, but little is known about its impact on floral volatiles. We show that herbivory by phloem-feeding aphids inhibits floral volatile emission in white mustard Sinapis alba measured by gas chromatographic analysis of headspace volatiles. The effect of the Brassica specialist aphid Lipaphis erysimi was stronger than the generalist aphid Myzus persicae and feeding by chewing larvae of the moth Plutella xylostella caused no reduction in floral volatile emission. Field observations showed no effect of L. erysimi-mediated floral volatile emission on the total number of flower visits by pollinators. Olfactory bioassays suggested that although two aphid natural enemies could detect aphid inhibition of floral volatiles, their olfactory orientation to infested plants was not disrupted. This is the first demonstration that phloem-feeding herbivory can affect floral volatile emission, and that the outcome of interaction between herbivory and floral chemistry may differ depending on the herbivore's feeding mode and degree of specialisation. The findings provide new insights into interactions between insect herbivores and plant chemistry.
4. Prospects for a PET Microdose Clinical Trial (2009)

The PET microdose technique is a pharmacokinetic study, in which the subject is administered with a drug candidate compound labeled with a positron emitter (11C or 18F) and the distribution and time course of radioactivity is measured with a PET camera. The labeled compound can also be given in a therapeutic dose. Together with blood sampling and metabolite analysis, the pharmacokinetics of the entire body can be examined. It is the only way to directly measure organ pharmacokinetics in human subjects and it is useful to measure the intracerebral concentration of a compound, which often has a large species variation. However, there are some limitations. Because 11C is too short-lived (half life=20 min), the compound should contain fluorine that can be labeled with 18F (half life=110 min) efficiently. Although formulation is an important factor for absorption, the labeled compound is usually given in a water solution in the case of oral administration, which may result in different absorption kinetics from that of capsules and tablets. Also radiation exposure to the alimentary tract cannot be ignored if a radioactive compound is orally administered. Considering those limitations, more researchers and drug companies are developing PET probes to image specific transporters and drug targets, which can be used to evaluate specific drug transport systems, to select subjects, or to measure receptor occupancy and other pharmacological effects of a candidate compound given in a therapeutic dose. Because of small mass dose, eIND and other microdose approaches are available for the clinical development of such PET probes to be used as diagnostics.
Design and implementation of component-level dynamic cluster management system (2011)

This paper designed and implemented a component-level dynamic cluster management system,which employed OSGi framework to organize its components and managed them by JMX remotely through component management proxies.The experiment results show the efficiency of this system.And at last this paper verifies that the component-level management is useful for resolving the dynamic requirements' change problem.
Experiencias de adultos con discapacidad visual sobre la educación sexual recibida (2015)

El objetivo del presente estudio es aprender y comprender mejor las necesidades y experiencias en materia de educacion sexual de los alumnos con discapacidad visual. Dado que la investigacion en este campo es escasa, mediante una encuesta que incluia tanto preguntas abiertas como preguntas tipo Likert, se examinaron las respuestas de 30 adultos (de entre 18 y 30 anos de edad), en las que los sujetos reflejaron sus propias experiencias de educacion sexual. Para el analisis de los datos se emplearon metodologias cualitativas y cuantitativas. En general, los encuestados indicaron que vivir con discapacidad visual habia marcado sus experiencias en materia de educacion sexual, comentando que los programas educativos con frecuencia se limitaban a temas como los riesgos asociados con la conducta sexual o a dar informacion anatomica o biologica. Ademas, los enfoques educativos empleados normalmente carecian de materiales accesibles, salvo cuando se hacia un uso ocasional para la presentacion por parte de los profesionales de situaciones, debates o charlas explicitas. Los resultados tambien sugieren que la educacion sexual de los encuestados se recibio parcialmente fuera de la escuela, donde aprendieron con metodos mas accesibles a ellos y sobre un espectro de temas mas amplio que los presentados en su centro educativo. Estos resultados sugieren que el programa de educacion sexual para alumnos con discapacidad visual deberia abarcar mayor numero de temas, incluyendo informacion social y metodos de ensenanza que permitan un mayor acceso a los materiales y conocimientos.
Numerical Analysis of Resonant Multipolar Instabilities in High Power Klystrons (2021)

The monopole monotron instability is a well-known phenomenon in linear beam devices. In recent development of a high-efficiency 50-MW X-band klystron, such instabilities were found and mitigated in a special second-harmonic multicell cavities triplet that is used to improve the klystron's performance. In further simulations of the klystron, using 3-D particle-in-cell computer codes, the more rare and complicated phenomenon, previously unreported in nonrelativistic devices, associated with rotating multipolar monotron instabilities was discovered. In this article, the qualitative and quantitative analysis of these oscillations is presented. Various resonant multipolar instabilities suppression strategies are introduced and discussed in detail.