gebhart/patrepeval huggingface dataset:
SAW sensors for high temperature applications (2002)

The technology of surface acoustic wave (SAW) devices allows the integration of signal processing and sensor functions within one product. In the past, SAW sensors have been operated at room temperature or 100 to 200/spl deg/C at most. Materials related problems become obvious if one attempts to increase this operating temperature to a value as high as 1000/spl deg/C. First experimental results are presented based on a variation of the metallization and the use of diffusion barriers. It is expected that the use of these specially tailored materials with particular functional properties will lead to a considerable improvement of the lifetime and reliability of SAW sensors and the development of devices resistant to high temperatures as well as high pressures and chemically aggressive environments. The high-temperature characteristics of such novel devices are investigated by finite element simulation and by experimental deformation analyses. It is also discussed which assembly, interconnection and packaging techniques are applicable at 1000/spl deg/C.
Biologically active compounds from European mistletoe (<i>Viscum album</i>L.)<sup>1</sup> (2002)

European mistletoe (Viscum album L.) is a commonly occurring semiparasite of trees. The extracts from European mistletoe have been shown to possess immunostimulatory and cytotoxic activity on tumor cells, and are used in Europe in adjuvant cancer therapy. Recently, a number of studies performed have been leading to the identification and characterization of bioactive compounds. Apoptosis-inducing and ribosome-inactivating lectins as well as cytotoxic thionins (viscotoxins) are the main groups of compounds participating in biological activity of V. album. These compounds were isolated and studied in vitro and in vivo for their biological activity and mechanism of action. A comparison of the results to those using whole extracts indicated that lectins and viscotoxins are not the only bioactive compounds present in the mistletoe and among them, high heterogeneity is observed in both structure and activity. In this paper, we review the current state of the art in mistletoe studies, emphasizing its potential application as a drug, its standardization, and taxonomic problems. The nontherapeutic applications and suspected physiological functions of the compounds in question are also discussed briefly.
QoSC: A QoS-Aware Storage Cloud Based on HDFS (2015)

Storage QoS is a key issue for a storage cloud infrastructure. This paper presents QoSC, a QoS-aware storage cloud for storing massive data over the dynamic network, based on the Hadoop distributed file system (HDFS). QoSC employs a data redundancy policy based on recovery volumes and a QoS-aware data placement strategy. We consider the QoS of a storage node as a combination of the transfer bandwidth, the availability of service, the workload (CPU utilization), and the free storage space. We have deployed QoSC on the campus network of Zhejiang University, and have conducted a group of experiments on file storage and retrieval. The experimental results show that QoSC improves the performance of file storage and retrieval and balances the workload among DataNodes, by being aware of QoS of DataNodes.
Microscopic computer tomography measurement of nonaxisymmetrically distributed optical fiber refractive index (1988)

A nonaxisymmetrically distributed method for measuring the refractive index of an optical fiber is described. The light intensity distribution is observed with a microscope when an optical fiber is latterally illuminated by collimated light. The integrated refractive-index difference along the projective line is obtained by performing two integrations of the light intensity. The fiber is rotated, and the observation and calculations are repeated at each angle of rotation. The refractive-index pattern over the fiber cross section is reconstructed by computer tomography.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Molecular dynamics simulation of diffusion of hydrogen in binary hydrogen–tetrahydrofuran hydrate (2011)

The binary structure II hydrogen–tetrahydrofuran (THF) hydrate was studied with molecular dynamics simulation. The simulations were carried out at 300, 310 K and 10.1 MPa, and with various contents of hydrogen and THF. The migrations of hydrogen molecules from cage to cage were observed. The migration process of hydrogen was also analysed, and the diffusion coefficients of hydrogen in the hydrate were calculated. The calculated diffusion coefficients qualitatively agreed with the experimental data. Double and quintet occupancies of hydrogen molecules were observed in the small and large cages, respectively, without changing the hydrate structure.
Cyclothiazide induces robust epileptiform activity in rat hippocampal neurons both <i>in vitro</i> and <i>in vivo</i> (2006)

Cyclothiazide (CTZ) is a potent blocker of AMPA receptor desensitization. We have recently demonstrated that CTZ also inhibits GABA(A) receptors. Here we report that CTZ induces robust epileptiform activity in hippocampal neurons both in vitro and in vivo. We first found that chronic treatment of hippocampal cultures with CTZ (5 microM, 48 h) results in epileptiform activity in the majority of neurons (80%). The epileptiform activity lasts more than 48 h after washing off CTZ, suggesting a permanent change of the neural network properties after CTZ treatment. We then demonstrated in in vivo recordings that injection of CTZ (5 micromol in 5 microl) into the lateral ventricles of anaesthetized rats also induces spontaneous epileptiform activity in the hippocampal CA1 region. The epileptogenic effect of CTZ is probably due to its enhancing glutamatergic neurotransmission as shown by increasing the frequency and decay time of mEPSCs, and simultaneously inhibiting GABAergic neurotransmission by reducing the frequency of mIPSCs. Comparing to a well-known epileptogenic agent kainic acid (KA), CTZ affects neuronal activity mainly through modulating synaptic transmission without significant change of the intrinsic membrane excitability. Unlike KA, which induces significant cell death in hippocampal cultures, CTZ treatment does not result in any apparent neuronal death. Therefore, the CTZ-induced epilepsy model may provide a novel research tool to elucidate the molecular and cellular mechanisms of epileptogenesis without any complication from drug-induced cell death. The long-lasting epileptiform activity after CTZ washout may also make it a very useful model in screening antiepileptic drugs.
Selective Absorption of Hydrogen Sulfide from Gas Streams (1950)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSelective Absorption of Hydrogen Sulfide from Gas StreamsH. D. Frazier and A. L. KohlCite this: Ind. Eng. Chem. 1950, 42, 11, 2288–2292Publication Date (Print):November 1, 1950Publication History Published online1 May 2002Published inissue 1 November 1950https://pubs.acs.org/doi/10.1021/ie50491a032https://doi.org/10.1021/ie50491a032research-articleACS PublicationsRequest reuse permissionsArticle Views819Altmetric-Citations49LEARN 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 options Get e-Alerts
A Space Vector Strategy for Smooth Torque Control of Switched Reluctance Machines (2007)

A new space vector torque control strategy is developed for switched reluctance machines. The method is based on an existing space vector control strategy, which yields an explicit expression for the phase currents realizing a desired torque at a given rotor position. With the improved strategy, a higher torque-current ratio is achieved. A new approach based on space vector trajectories is given to determine the commutation between phases. For a constant reference torque, the improved method guarantees continuous reference currents. Therefore, smooth torque control is possible for a wide speed range and servo-grade performance can be achieved.
Attacks on a Universal Designated Verifier Signature Scheme (2009)

In literature [3], two new universal designated verifier signature proof schemes (UDVSP) based on hardness assumption of the discrete-logarithm problem were proposed at Asiacrypt '05. The UDVSP scheme were proven secure against impersonation attacks in random oracle under Type-1 attack and Type-2 attack. Unfortunately, these schemes are totally breakable by any attacker if the attacker is allowed to interact concurrently with many different prover “instances” as well as with the verifier (concurrent reset attacks for short). In this paper, the UDVSP schemes are shown insecure against impersonation under Type-1 attack and are also proven transferable, which contradicts the design goal of universal designated verifier signature scheme.
Interprocess communication dependency on network load (1991)

Results of an analysis of the communication performance as perceived by the application layer in the presence of background load are presented. The analysis was carried out on two distinct protocol suites, TCP/IP and XNS, on a single Ethernet LAN with personal computer workstations. Service times for a reliable transfer and an unreliable transmission as perceived by the application layer were measured. An appropriate model of the reliable transfer process was used to derive service time analytical estimates. Owing to the close relation between measured and estimated values, the model was used to identify the major sources of delay and to evaluate the effects of possible improvements. The most important causes affecting the transport layer performance as background load increases are identified, and different strategies are examined in order to reduce their impact. The improvement margin offered by the implementation of a lightweight transport protocol specifically tailored to the requirements of a bulk data transfer over an Ethernet is addressed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Differential effects of lipoic acid stereoisomers on glucose metabolism in insulin-resistant skeletal muscle (1997)

The racemic mixture of the antioxidant alpha-lipoic acid (ALA) enhances insulin-stimulated glucose metabolism in insulin-resistant humans and animals. We determined the individual effects of the pure R-(+) and S-(-) enantiomers of ALA on glucose metabolism in skeletal muscle of an animal model of insulin resistance, hyperinsulinemia, and dyslipidemia: the obese Zucker (fa/fa) rat. Obese rats were treated intraperitoneally acutely (100 mg/kg body wt for 1 h) or chronically [10 days with 30 mg/kg of R-(+)-ALA or 50 mg/kg of S-(-)-ALA]. Glucose transport [2-deoxyglucose (2-DG) uptake], glycogen synthesis, and glucose oxidation were determined in the epitrochlearis muscles in the absence or presence of insulin (13.3 nM). Acutely, R-(+)-ALA increased insulin-mediated 2-DG-uptake by 64% (P < 0.05), whereas S-(-)-ALA had no significant effect. Although chronic R-(+)-ALA treatment significantly reduced plasma insulin (17%) and free fatty acids (FFA; 35%) relative to vehicle-treated obese animals, S-(-)-ALA treatment further increased insulin (15%) and had no effect on FFA. Insulin-stimulated 2-DG uptake was increased by 65% by chronic R-(+)-ALA treatment, whereas S-(-)-ALA administration resulted in only a 29% improvement. Chronic R-(+)-ALA treatment elicited a 26% increase in insulin-stimulated glycogen synthesis and a 33% enhancement of insulin-stimulated glucose oxidation. No significant increase in these parameters was observed after S-(-)-ALA treatment. Glucose transporter (GLUT-4) protein was unchanged after chronic R-(+)-ALA treatment but was reduced to 81 +/- 6% of obese control with S-(-)-ALA treatment. Therefore, chronic parenteral treatment with the antioxidant ALA enhances insulin-stimulated glucose transport and non-oxidative and oxidative glucose metabolism in insulin-resistant rat skeletal muscle, with the R-(+) enantiomer being much more effective than the S-(-) enantiomer.
New ceramic processing approaches using combustion synthesis under gas pressure (1990)

Self-propagating high-temperature synthesis (SHS), or combustion synthesis, is a highly exothermic reaction accompanying formation of compounds with high formation energies. The reaction is initiated by ignition and propagated at speeds of 0.1 to 20 cm/s. Usually the reaction temperature reaches above 2100 to 3500 K. Over 300 kinds of compounds, which include many advanced ceramics and alloys are reportedly produced by this process. The authors discuss one new approach which involves the simultaneous synthesis and densification of ceramics, a process they call gas-pressure combustion sintering, and another which is the formation of nitride ceramic powders and components by nitriding combustion in pressurized nitrogen atmosphere.
Centrifuges, Filtering (2007)

Abstract The article contains sections titled: 1. Introduction 2. Fundamentals 2.1. Description of the Pore Liquid 2.2. Cake Formation 2.3. Washing of the Centrifuge Cake 2.4 Dewatering of the Centrifuge Cake 2.4.1. Equilibrium of Centrifugal Dewatering 2.4.2. Kinetics of Dewatering 3. Discontinuous Filtering Centrifuges 3.1. Cycles of the Discontinuous Centrifugation Process 3.2. Filling Strategies of the Centrifuge Drum 3.3. Peeler/Scraper Centrifuge 3.3.1. Horizontal Construction 3.3.2. Vertical Construction: Three Column Centrifuge 3.3.3. Siphon Centrifuge 3.4. Inverting Filter Centrifuge 3.5. Centrifugal Dryer 4. Filtering Centrifuges with Continuous Feed 4.1. Conical Screen Centrifuge 4.2. Vibrating Conical Screen Centrifuge 4.3. Tumbler Centrifuge 4.4. Screen Scroll Centrifuge 4.5. Pusher Centrifuge 4.5.1. Cake conveyance – Transport model 4.5.2. Washing on the Pusher Centrifuge 4.5.3. Feeding – Danger of Basket Flooding 4.5.4. Multistage Pusher Centrifuges 4.5.5. Special Pusher Centrifuges
Practical implementation and analysis of hyper-encryption (2009)

The security of modern cryptographic schemes relies on limits on computational power and assumptions about the difficulty of certain mathematical problems, such as integer factorization. This thesis describes hyper-encryption in the limited access model, a system that provides perfect secrecy and authentication against an adversary who possesses unbounded computational power, but who is limited in the ability to eavesdrop on more than a fraction of computers in a large network, such as the Internet.
Nucleotide-Induced Conformational Changes in Escherichia coli DnaA Protein Are Required for Bacterial ORC to Pre-RC Conversion at the Chromosomal Origin (2015)

DnaA oligomerizes when bound to origins of chromosomal replication. Structural analysis of a truncated form of DnaA from Aquifex aeolicus has provided insight into crucial conformational differences within the AAA+ domain that are specific to the ATP- versus ADP- bound form of DnaA. In this study molecular docking of ATP and ADP onto Escherichia coli DnaA, modeled on the crystal structure of Aquifex aeolicus DnaA, reveals changes in the orientation of amino acid residues within or near the vicinity of the nucleotide-binding pocket. Upon limited proteolysis with trypsin or chymotrypsin ADP-DnaA, but not ATP-DnaA generated relatively stable proteolytic fragments of various sizes. Examined sites of limited protease susceptibility that differ between ATP-DnaA and ADP-DnaA largely reside in the amino terminal half of DnaA. The concentration of adenine nucleotide needed to induce conformational changes, as detected by these protease susceptibilities of DnaA, coincides with the conversion of an inactive bacterial origin recognition complex (bORC) to a replication efficient pre-replication complex (pre-RC) at the E. coli chromosomal origin of replication (oriC).
Automatic generation of personalized human avatars from multi-view video (2005)

In multi-user virtual environments real-world people interact via digital avatars. In order to make the step from the real world onto the virtual stage convincing the digital equivalent of the user has to be personalized. It should reflect the shape and proportions, the kinematic properties, as well as the textural appearance of its real-world equivalent. In this paper, we present a novel spatio-temporal approach to create a personalized avatar from multi-view video data of a moving person. The avatar's geometry is generated by shape-adapting a template human body model. Its surface texture is assembled from multi-view video frames showing arbitrary different body poses. consistent surface texture for the model is generated using multi-view video frames from different camera views and different body poses. With our proposed method photo-realistic human avatars can be robustly generated.
Human Poly (Adp-Ribose) Polymerase Family Member 14 (Parp14); A Target Enabling Package (2018)

This work provides reagents to develop specific inhibitors of the macrodomains of PARP14, for potential use for cancer and/or inflammation. Targeting the macrodomains of PARP14 is an alternative targeting strategy to PARP catalytic domain inhibitors that may allow greater inhibitor selectivity, and an alternative cellular effect. This package includes protein purification protocols, crystal structures of the 2nd and 3rd macrodomain of PARP14 in complex with small molecule chemical starting points, <em>in vitro </em>assays to measure ligand binding to the macrodomains, as well as validation of a PARP14 antibody and reagents to generate PARP14 knock-out cell lines (CRISPR-Cas9).
<title>A Geodetic And Survey Infrared Distance Measurement Instrument</title> (1976)

An infrared light emitting diode is amplitude modulated at 15 megahertz. The light is optically collimated and transmitted to a cube corner reflector at the distance to be measured. The return light from the reflector is focused onto an avalanche photodiode. The phase relation between the transmitted and the received light is a direct measure of the fractional part of a wavelength from the instrument to the reflector. Multiple frequencies are used to determine the number of whole wavelengths to the reflector. The composite distance is calculated by an on board logic processor and presented on a liquid crystal display. Error is less than ±1 cm at distances up to 1 kilometer. The instrument is economi-cal, lightweight, and rugged for field use. Overall system operation is explained along with special optical and electronic problems and limitations that were encountered.
Large area multi-zone type VHF-PCVD system for a-Si and /spl mu/c-Si deposition (2003)

Large area plasma enhanced chemical vapor deposition (PCVD) system consisted of arrays of novel U-shaped loop antenna type electrodes (array antenna) was developed to achieve high throughput deposition of amorphous silicon (a-Si) and microcrystalline silicon (/spl mu/c-Si) thin films at very high frequency (VHF). By the use of array antennas, simultaneous deposition on six substrates of over 1 m squares in size was realized at an excitation frequency of 85 MHz. The Si-H/sub 2/ stretching mode fraction, observed from the infrared absorption spectrum of a-Si film deposited at 200/spl deg/C and 12 nm/min, was negligible, and the non-uniformity of the deposition rate was /spl plusmn/12% for over 1000 mm/spl times/1200 mm. Standard dark conductivities were observed by both n-type and p-type doped a-Si films. The crystallinity of microcrystalline silicon films obtained from Raman spectra (Ic/Ia) was 10 at the deposition rate of 6 nm/min and was 5.1 at 30 nm/min.
Regulation of Attached Bacterial Growth by Adsorbed Proteins (1993)

The general objective of this project was to examine one component of the primary biofilm, protein, which has been hypothesized to be a major component of both dissolved and adsorbed organic pools in seawater. In previous work we found that surface energy was important in determining adsorption of protein to surfaces in seawater and degradation rates by bacteria and bacterial growth. In the last phase of this work, we examined the chemical nature of actual protein in seawater using HPLC techniques which we developed, standard chemical assays, and bioassays. We showed that protein in seawater is not the same chemically as cellular protein. Bacteria appear to treat nearly all seawater protein as if it were glycolated and degrade it at much lower rates than unmodified, fresh protein. Other experiments showed that cellular protein introduced into seawater is quickly modified by abiotic reactions and becomes less easily hydrolyzed by bacterial proteases within hours. The abiotic reactions appear to include adsorption to small colloids. These results begin to explain the growth dynamics of microorganisms on surfaces and the origin of refractory organic matter which is highly abundant in seawater.... Biofouling, Protein adsorption, Biofilm, Attached bacteria.
Phase Equilibria in the System MgO—MgCr <sub>2</sub> O <sub>4</sub> (1964)

The liquidus, solidus, and subsolidus in the system MgO‐MgCrz04 were redetermined. Petro‐graphic studies indicated that 47 wt% Cr203 could enter into the periclase lattice at about 235OO C. X‐ray and optical data showed that the solid solution decreased to 32 wt% Cr202 at 2165OC, 11 wt% at 1600°C, 5 wt% at 1400°C, 2.5 wt% at 1200°C, and 0 wt% at 1000°C. Petro‐graphic studies also suggested that picrochromite could contain about 5 wt% MgO in solid solution. The liquidus was much higher than has been indicated on previously published phase equilibrium diagrams.
Assisted Reproductive Technology Surveillance - United States, 2001 (2004)

ART-related multiple births represent a sizable proportion of all multiple births nationwide and in selected states. To minimize the adverse maternal and child health effects that are associated with multiple pregnancies, ongoing efforts to limit the number of embryos transferred in each ART procedure should be continued and strengthened. Adverse maternal and infant outcomes (e.g., low birthweight and preterm delivery) associated with ART treatment choices should be explained fully when counseling patients who are considering ART.