gebhart/patrepeval huggingface dataset:
Geometrically aware communication in random wireless networks (2004)

Some of the first routing algorithms for position-aware wireless networks used the Delaunay triangulation of the point-locations of the network's nodes as the underlying connectivity graph. Later on these solutions were considered impractical because the Delaunay triangulation may in general contain arbitrarily long edges and because calculating the Delaunay triangulation may require a global view of the network. Many other algorithms were then suggested for geometric routing, often assuming random placement of network nodes for analysis or simulation [27, 5, 28, 15]. But as we show, when the nodes are uniformly placed in the unit disk the Delaunay triangulation does not contain long edges, it is easy to compute locally and it is in many ways optimal for geometric routing and flooding.In particular, we prove that with high probability the maximal length of an edge in Del(P), the Delaunay triangulation of a set P of n nodes uniformly placed in the unit disk, is O(3√3log novern), and that the expected sum of squares of all the edges in Del(P) is O(1). These geometric results imply that for wireless networks, randomly distributed in a unit disk (1) computing the Delaunay triangulation locally is asymptotically easy; (2) simple "face routing" through the Delaunay triangulation optimizes, up to poly-logarithmic factors, the energy load on the nodes, and (3) flooding the network, an operation quite common in sensor nets, is with high probability optimal up to a constant factor. The last property is particularly important for geocasting because the Delaunay triangulation is known to be a spanner.
A novel design of train air brake test instrument (2010)

The design and development of a novel train air brake test instrument is presented in this paper. The instrument is designed with fast proportional valves and air pressure sensors which are controlled by a front embedded system and a supervisory computer. By using PID control algorithm, the instrument can generate the testing air pressure curve automatically to meet the five kinds of train brake valve testing procedure. The control algorithm is running in the embedded system which is designed with a System on a Chip (SoC) microcontroller. The operation of the instrument is realized by using the supervisory panel computer with a touch screen. The field test experiments show that the instrument can find out whether there is a fault valve in the train air brake system.
A spontaneous and passive waste-management device (PWMD) for a micro direct methanol fuel cell (2007)

This paper introduces a passive waste-management device (PWMD) for a micro direct methanol fuel cell to exhale CO2 gas and to gather and transport water and methanol residue during operation. It passively employs condensation, temperature gradient, surface tension gradient and droplet coalescence to accumulate liquid, separate liquid and gas, and transport droplets without the need of external power. CO2 gas can be breathed out through hydrophobic micro holes with the assistance of buoyancy force while water/methanol vapor is condensing into droplets, coalescing with smaller droplets and is transported toward a cooler and more hydrophilic waste tank through wettability gradient. The wettability gradient is prepared by diffusion-controlled silanization with a gradient from 117° to 28° and is radial toward the outer boundary, which can drive droplets down to 1 µl with a speed of up to 20 mm s−1. With the assistance of coalescence along with the wettability gradient, the condensed water droplets can reach a double speed of 40 mm s−1. The maximum water removal rate of the PWMD can approach 6.134 µl s−1 cm−2, which is at least one order of magnitude higher than the demand of a standard µDMFC with power generation ability of 100 mW cm−2.
Remote GPU-Accelerated Online Pre-processing of Raster Maps for Terrain Rendering (2012)

We present a distributed architecture for accelerated pre-processing of remote sensing data for immediate terrain visualization. Interactive 3D visualization approaches for large terrain datasets employ level of detail techniques that require a multi-resolution data representation. The high computational cost of constructing these representations is often not viewed as a major drawback, as it is considered an o-line pre-processing step. This prevents the application of existing methods in the case of changing data, which is becoming increasingly important for a multitude of applications where datasets are being generated, transmitted and must be visualized immediately, such as in disaster management.\nOur system uses graphics processing units (GPUs) to accelerate the process of generating a multi-resolution representation, achieving sucient performance to enable on-line visualization on a front-end workstation communicating with a back-end cluster of machines equipped with GPUs. As a reference data structure, we use a quad tree decomposition of the so-called HEALPix sphere parameterization, which is well-suited for spherical terrain rendering. Our system correctly handles overlapping and unregistered mixed-resolution datasets. We demonstrate the ecacy of our approach by applying it to the surface of Mars using both the NASA Mars Orbiter Laser Altimeter and the ESA Mars Express High Resolution Stereo Camera datasets.
Behaviour change and sexual health; SHARE programme evaluation (2013)

Purpose – The purpose of this paper is to examine a national sexual health and relationships education (SHARE) educational package for behaviour change techniques (BCTs) utilised in order to make recommendations for further improvements. Design/methodology/approach – Using BCTs taxonomy (BCT V1), two coders independently examined the 22 session plans within SHARE for their utilisation of BCTs. All three authors then examined the results, and agreed on any discrepancies. Findings – The SHARE package utilises only a small range of BCTs detailed in BCT V1. SHARE makes use of a range of techniques which may impact on the distal factors that influence sexual risk taking, such as self-esteem and building confidence to say “no” to sex. Practical implications – SHARE – and perhaps other sexual health education programmes – may need to draw on more BCTs, particularly those supported by evidence, in order to effectively reduce risky sexual behaviours among young people. Programmes may also benefit from including broader elements around pleasure, self-examination and screening behaviour. Originality/value – Sexual health packages rarely encounter such scrutiny, particularly being examined in relation to the BCTs. The new and rigorous way of rating the SHARE package has enabled a range of recommendations relating to BCTs to be made both for improving the package and other sexual health education programmes.
Resonant Raman scattering of diamondlike amorphous carbon films (1988)

Raman spectra of diamondlike amorphous carbon (a-C) films prepared by the sputtering method have been measured as a function of the excitation wavelength. The Raman spectral profiles vary sensitively, reflecting the change of absorption spectra associated with π-π* electronic transitions with the hydrogen content of the films. From a comparison between Raman and electronic absorption spectra, it is confirmed that the Raman spectral variation with the excitation wavelength is due to the π-π* resonant Raman scattering from π-bonded (sp2) carbon clusters.
Evaluation of absorption and first- and second-derivative spectra for simultaneous quantification of bilirubin and hemoglobin. (1986)

We discuss the relative merits of absorption and first- and second-derivative spectra for the simultaneous quantification of bilirubin and hemoglobin, and evaluate single-, two-, and multiwavelength methods. Although both species can be quantified from single- or two-wavelength absorption data, lipids or other absorbing or light-scattering components introduce systematic errors that can be substantially decreased by using first- or second-derivative spectra. Multi-wavelength data-processing methods with derivative spectra permit quantification of components with overlapping spectra and decrease the random error usually associated with derivative methods. A typical least-squares equation for quantifying bilirubin in the presence of hemoglobin and bovine serum albumin from multi-wavelength second-derivative data is y(computed) = 0.999x(prepared) + 0.00 mg/L.
Polymorphic expression of CD158k/p140/KIR3DL2 in Sezary patients (2003)

Sezary syndrome (SS) is a leukemic form of epidermotropic cutaneous T-cell lymphoma (CTCL) characterized by the rapid onset of a pruriginous erythroderma with diffuse adenopathies. Sezary cells are lymphocytes with a typical cerebriform nucleus and a CD4+CD45RO+ phenotype. No specific cell
In Vitro Assembly and Stabilization of Dengue and Zika Virus Envelope Protein Homo-Dimers (2017)

Zika virus (ZIKV) and the 4 dengue virus (DENV) serotypes are mosquito-borne Flaviviruses that are associated with severe neuronal and hemorrhagic syndromes. The mature flavivirus infectious virion has 90 envelope (E) protein homo-dimers that pack tightly to form a smooth protein coat with icosahedral symmetry. Human antibodies that strongly neutralize ZIKV and DENVs recognize complex quaternary structure epitopes displayed on E-homo-dimers and higher order structures. The ZIKV and DENV E protein expressed as a soluble protein is mainly a monomer that does not display quaternary epitopes, which may explain the modest success with soluble recombinant E (sRecE) as a vaccine and diagnostic antigen. New strategies are needed to design recombinant immunogens that display these critical immune targets. Here we present two novel methods for building or stabilizing in vitro E-protein homo-dimers that display quaternary epitopes. In the first approach we immobilize sRecE to enable subsequent dimer generation. As an alternate method, we describe the use of human mAbs to stabilize homo-dimers in solution. The ability to produce recombinant E protein dimers displaying quaternary structure epitopes is an important advance with applications in flavivirus diagnostics and vaccine development.
A structural, magnetic, and Mössbauer spectral study of the TbCo4−xFexB compounds with x=, 1, and 2 (2009)

The TbCo4−xFexB compounds with x=0, 1, and 2 have been investigated by x-ray and neutron diffraction, magnetic measurements, and iron-57 Mössbauer spectroscopy. The substitution of cobalt by iron induces both an anisotropic increase in the unit-cell volume and a large increase of approximately 250 K in the Curie temperature; the 4.2 K magnetization decreases continuously with increasing iron content. The powder neutron diffraction patterns and the Mössbauer spectra of the TbCo4−xFexB compounds reveal a strong preferential substitution of iron for cobalt on the 2c site, small transition metal magnetic moments of approximately 1.7μB, and small iron hyperfine fields of approximately 16 T. The compensation temperature of the TbCo4−xFexB compounds decreases continuously from 400 to 350 K between x=0 and 2 as the result of an iron induced increase in the transition metal magnetization. The magnetic moment and hyperfine field are found to be larger on the 2c site than on the 6i site, a difference that reflects the strong hybridization of the 3d orbitals of the 6i site transition metal with the boron 2p orbitals.
13th International Conference on Quasicrystals (2017)

The 13th International Conference on Quasicrystals (ICQ13) was held in Kathmandu, Nepal, from 18th to 23rd September 2016. This episode of a series of conferences on quasicrystals followed twelve previous successful meetings. The first event, the "International Workshop on Aperiodic Crystals", was held in Les Houches, France in 1986, which was followed by the "International Workshop on Quasicrystals" in Beijing, China in 1987 and the "International Meeting on Quasicrystals" in Vista-Hermosa, Mexico in 1989. Thereafter, a series of "International Conference on Quasicrystals" took place respectively in St. Louis, Missouri, USA in 1992 (ICQ4), Avignon, France in 1995 (ICQ5), Tokyo, Japan in 1997 (ICQ6), Stuttgart, Germany in 1999 (ICQ7), Bangalore, India in 2002 (ICQ8), Ames, Iowa, USA in 2005 (ICQ9), Zürich, Switzerland in 2008 (ICQ10), Sapporo, Japan in 2011 (ICQ11) and Cracow, Poland in 2013 (ICQ12).
Design of high-efficiency current-mode class-D amplifiers for wireless handsets (2005)

Design considerations are discussed for current-mode class-D (CMCD) microwave power amplifiers. Factors affecting amplifier efficiency are described analytically and via simulation. Amplifiers are reported that incorporate parallel LC resonators alongside the switching transistors. To reduce parasitic resistance, bond-wires were utilized to implement a high Q inductor in the LC resonator. An experimental CMCD amplifier based on GaAs HBTs is reported, with collector efficiency of 78.5% at an output power of 29.5 dBm (0.89 W) at 700 MHz.
Effect of coconut oil in plaque related gingivitis - A preliminary report (2015)

Oil pulling using coconut oil could be an effective adjuvant procedure in decreasing plaque formation and plaque induced gingivitis.
Interferon-α2b–induced thrombocytopenia is caused by inhibition of platelet production but not proliferation and endomitosis in human megakaryocytes (2008)

Human interferon (IFN)-alpha is the standard therapy for chronic hepatitis C to prevent its progression to liver cirrhosis and hepatocellular carcinoma. Thrombocytopenia is one of the major adverse effects of IFN-alpha and often leads to dose reduction or treatment discontinuation. However, there is little information on how IFN-alpha inhibits human megakaryopoiesis. In this study, we demonstrated that IFN-alpha did not inhibit colony formation of megakaryocytes from human CD34(+) hematopoietic stem cells. IFN-alpha did not inhibit endomitosis but did inhibit cytoplasmic maturation of megakaryocytes and platelet production in vitro. IFN-alpha suppressed the expression of transcription factors regulating late-stage megakaryopoiesis, such as GATA-1, p45(NF-E2), MafG. IFN-alpha also significantly reduced the number of human platelets but not megakaryocytes, and did not inhibit endomitosis of human megakaryocytes in immunodeficient NOD/Shi-scid/IL-2R gamma(null) (NOG) mice transplanted with human CD34(+) cells (hu-NOG). We also demonstrated that a novel thrombopoietin mimetic, NIP-004, was effective for treating IFN-alpha-induced thrombocytopenia in hu-NOG mice. From ultrastructural study, IFN-alpha inhibited the maturation of demarcation membranes in megakaryocytes, although NIP-004 prevented the inhibitory effects of IFN-alpha. These results defined the pathogenesis of IFN-alpha-induced thrombocytopenia and suggested possible future clinical applications for thrombopoietin mimetics.
An Experimental Study of the Regeneration of the Intervertebral Disc With an Allograft of Cultured Annulus Fibrosus Cells Using a Tissue-Engineering Method (2003)

The annulus fibrosus cells cultured in an ACHMS-scaffold were allografted into the lacunae of nucleus pulposus (obtained using laser vaporization), as well as the hole of annulus fibrosus (obtained by laser fiber insertion) of rabbit intervertebral discs. These cells were viable and showed cell proliferation in the disc tissues of recipients.
Pilotless Drones: Background and Considerations for Congress Regarding Unmanned Aircraft Operations in the National Airspace System (2012)

Report that covers the history and current status of unmanned aerial vehicles (UAVs). Particular attention is paid to recent privacy implications and potential intrusiveness of drone operations that have emerged as a significant issue before Congress. It also looks at the current Federal Aviation Administration (FAA) timeline to establish six test ranges throughout the United States to study unmanned aircraft integration technical issues.
THE EFFECT OF SOIL PROPERTIES ON PHOSPHORUS SORPTION BY EVERGLADES HISTOSOLS (1992)

The eutrophic state of adjacent Lake Okeechobee and recently reported increases of phosphorus levels in Everglades National Park have led to efforts to reduce the phosphorus content of agricultural drainage originating in the Everglades Agricultural Area. In order to better understand the movement of phosphorus from agricultural fields to surface water, phosphorus sorption by Histosols was studied by measuring the amount of inorganic phosphorus removed from solution by known amounts of soil (quantity/intensity experiments) for Histosols representing a variety of cultural histories and soil classifications. The experiments were summarized with phosphorus sorption indices and by fitting to sorption models. A sorption index formed by the ratio of the amount phosphorus sorbed and the log of the equilibrium P concentration for a solution initially having 100 mg L−1 added phosphorus varied widely even among Histosols with the same classification and similar cultural histories. Among 18 Histosols typical of the Everglades Agricultural Area, the phosphorus sorption index ranged from 37 to 210; the amount of P sorbed at 10 mg L−1 equilibrium P, after adjusting for initial labile P, ranged from 20 to 1800 mg kg−1; and the slope of QI plots at 10 mg L−1 P concentration ranged from 6 to 840 L kg−1. There was a significant correlation among phosphorus sorption index, ash, pH, total Ca, and free carbonates. When two or three parameter linear models were considered, oxalate extractable Fe and Al, and total Fe became important.
Mechanism and Scope of Stereospecific, Coordinative-Anionic Polymerization of Acrylamides by Chiral Zirconocenium Ester and Amide Enolates (2005)

The mechanism and scope of the isospecific, coordinative-anionic polymerization of acrylamides, including N,N-dimethylacrylamide (DMAA), N,N-dimethylmethacrylamide (DMMA), and N-isopropylacrylamide (IPAA), using chiral ansa-zirconocenium ester and amide enolates, are reported. The zirconocenium ester enolate, rac-(EBI)Zr+(THF)[OC(OiPr)CMe2][MeB(C6F5)3]- [1; EBI = C2H4(Ind)2], effects highly isospecific and living polymerization of DMAA via a monometallic, intramolecular coordinative-conjugate-addition mechanism, with the resting intermediate during a “catalytic” propagation cycle being the cyclic amide enolate. The results leading to these key conclusions were derived from investigations of polymerization kinetics, polymer microstructures and chain-end groups, and block copolymerization behavior as well as modeling and isolation of the active propagating species. Specifically regarding the active species modeling, isolation, and characterization, neutral chiral amide enolate rac-(EBI)ZrMe[OC(NMe2)CMe2] (2) has been synthesized and structurally characterized and its corresponding cationic complex rac-(EBI)Zr+(THF)[OC(NMe2)C(Me)2][MeB(C6F5)3]- (3) isolated; cation 3 is highly active for DMAA polymerization, serving as a structural model for the active propagating species. Both ester and amide enolates 1 and 3 are inactive for polymerizations of DMMA and IPAA; however, 1 equiv of IPAA or DMMA is readily added to 1 or 3, forming the eight-membered-ring cyclic amide enolates rac-(EBI)Zr+[OC(NHiPr)CHCH2C(Me2)C(OiPr)O][MeB(C6F5)3]- (4) or rac-(EBI)Zr+[OC(NMe2)C(Me)CH2C(Me2)C(NMe2)O][MeB(C6F5)3]- (5), which correspond to the structures of the first acrylamide addition products and the resting propagation intermediates.
Internet of Things with Wireless Sensor Network (2018)

Wireless Sensors are the tiny devices that can used to sense the environmental parameters like temperature, light, motions, greenhouse gases, motions etc. Wireless Sensor Networks (WSNs) usually consists of many densely deployed sensor nodes in a given area to perform certain tasks. On the other hand, Internet of Things (IoTs) is a world-wide network of interconnected devices with physical and virtual devices, embedded systems and other networks. Sensors are the primary element of IoT which is used to generate data in the network. The main goal of this paper is to discuss more about how WSN interact with IoT for different type of applications
Multipass membrane protein structure prediction using Rosetta (2005)

We describe the adaptation of the Rosetta de novo structure prediction method for prediction of helical transmembrane protein structures. The membrane environment is modeled by embedding the protein chain into a model membrane represented by parallel planes defining hydrophobic, interface, and polar membrane layers for each energy evaluation. The optimal embedding is determined by maximizing the exposure of surface hydrophobic residues within the membrane and minimizing hydrophobic exposure outside of the membrane. Protein conformations are built up using the Rosetta fragment assembly method and evaluated using a new membrane-specific version of the Rosetta low-resolution energy function in which residue-residue and residue-environment interactions are functions of the membrane layer in addition to amino acid identity, distance, and density. We find that lower energy and more native-like structures are achieved by sequential addition of helices to a growing chain, which may mimic some aspects of helical protein biogenesis after translocation, rather than folding the whole chain simultaneously as in the Rosetta soluble protein prediction method. In tests on 12 membrane proteins for which the structure is known, between 51 and 145 residues were predicted with root-mean-square deviation <4 A from the native structure.
Scrubbers for phosphoric acid plants (1982)

Methods for designing, evaluating and selecting scrubbers for large phosphoric acid plants described. They are important when building new plants or modifying them for increased capacity. The basic considerations in selecting a scrubber for large phosphoric acid plants are 1) whether they can meet process requirements and environmental standards, 2) reliability and ease of operation, and 3) capital and operating costs. Heat and material balance work will establish the flows, composition, and temperatures for the basic design. To this are added the other inputs of vapor pressures, design velocities, and other design operating and cost considerations. It is concluded that new improved plant designs have nearly eliminated the major fluoride scrubber requirements. The remaining minor fluoride scrubbing requirements should be handled by one of the low energy consuming scrubbers. 12 refs.
Flow Cytometry of Extracellular Vesicles: Potential, Pitfalls, and Prospects (2015)

Evidence suggests that extracellular vesicles (EVs) can play roles in physiology and pathology, providing impetus to explore their use as diagnostic and therapeutic targets. However, EVs are also small, heterogeneous, and difficult to measure, and so this potential has not yet been realized. The development of improved approaches to EV detection and characterization will be critical to further understanding their roles in physiology and disease. Flow cytometry has been a popular tool for measuring cell-derived EVs, but has often been used in an uncritical manner in which fundamental principles and limitations of the instrument are ignored. Recent efforts to standardize procedures and document the effects of different methodologies have helped to address this shortcoming, but much work remains. In this paper, I address some of the instrument, reagent, and analysis considerations relevant to measurement of individual EVs in flow, with the aim of clarifying a path to quantitative and standardized measurement of these interesting and potentially important biological nanoparticles.