gebhart/patrepeval huggingface dataset:
Dynamic characteristics of a standing human on a SDOF structure (2012)

This paper studies the dynamic characteristics of a human-structure system. The integrative modeling (i.e., a continuous bar represents a body standing on a Single Degree-Of-Freedom (SDOF) structure) is used to derive the coupled Two Degree-Of-Freedom (TDOF) system when the fundamental mode of the bar is considered only. In the new TDOF system, the mass matrix is full, which is different from the conventional TDOF system where the mass matrix is diagonal. The solutions of the natural frequencies, damped natural frequencies, resonant frequencies, damping ratios and displacement spectra of the new TDOF body-structure system are derived. A parametric study is conducted to examine the effects of different bar-body models, the mass ratio and frequency ratio on the three types of frequencies (natural, damped natural and resonant frequencies) of the new system. It is found that the bar-body models have slight effects on the three types of frequencies. The first natural frequency of the human-structure system decreases with the increase of the mass ratio. However, the second natural frequency of the system increases with the increase of the mass ratio. Both natural frequencies of the system increase with the increase of the frequency ratio. © KRISHTEL eMAGING SOLUTIONS PRIVATE LIMITED.
Supporting OLAP operations over imperfectly integrated taxonomies (2008)

OLAP is an important tool in decision support. With the help of domain knowledge, such as hierarchies of attribute values, OLAP helps the user observe the effects of various decisions. One assumption of most OLAP operations is that the available domain knowledge is precise. In particular, they assume that the hierarchy of values over which the user can navigate forms a taxonomy. In this paper, we first note that when multiple heterogeneous data sources are involved in the gathering of the data and the associated domain knowledge, the integrated knowledge-base, constructed by combining locally available taxonomies based on the concept matchings, may not be a taxonomy itself. Specifically, existence of intersections among concepts from different sources compromises the tree-structure of the integrated taxonomy and prevents effective use of hierarchical navigation techniques, such as drill-down and roll-up. To cope with this, we introduce concept un-classification, where a select few of the concepts are eliminated to ensure that the remaining structure is a navigable taxonomy, without concept intersections. Since un-classifying an originally classified data is not desirable, we consider ways to minimize un-classification in the process. We introduce a cost model which captures the imprecision caused by the un-classification process and we formulate the problem of finding an un-classification strategy which eliminates intersections and which adds minimal imprecision to the resulting structure. We show that, when performed naively, this task can be very costly and thus we propose a bottom-up preprocessing strategy which supports basic navigational analytics operations, such as drill-down and roll-up. Experiments over synthetic and real-life data verified the effectiveness and efficiency of our approach.
Scalability of dense wireless lighting control networks (2015)

In modern lighting systems, the introduction of wirelessly controlled LED light sources leads to very dense wireless lighting networks. Current approaches for control message transmission are based on broadcasting messages among many luminaires. However, adequate communication performance - in particular, sufficiently low latency and synchronicity - is difficult to ensure in such networks, especially if the network is part of a wireless building management system and carries not only low-latency broadcast messages but also collects data from sensors. This article describes the challenge of dense wireless lighting control networks. In particular, it discusses the underlying mechanisms and refers to current wireless sensor network solutions in which scalability is relevant.
A clinical study of a silicate toothpaste with extract from propolis. (2001)

Propolis is bee-produced substance with pronounced anti-inflammatory effect. It is an ingredient of many drugs; it is added to toothpastes as a prophylactic component for periodontal diseases. The plaque-cleaning, plaque-inhibiting and anti-inflammatory actions of the silicate paste were studied. The study included 42 individuals in good clinical health and a minimum of 20 intact teeth - 11, 16, 24, 31, 36, 46. Control exams were performed on days 1, 7, 14, 21 and 28. The baseline values gradually decreased after each control tooth brushing with a statistically significant difference between them. The toothpaste shows very good plaque-cleaning, plaque-inhibiting and anti-inflammatory effect.
Synthesis, Antibacterial, and Cytotoxic Evaluation of Certain 7-Substituted Norfloxacin Derivatives (2000)

We report herein the synthesis and biological evaluation of two series of 7-substituted norfloxacin derivatives. Most compounds tested in this study demonstrated better activity against methicillin-resistant Staphylococcus aureus than norfloxacin. Preliminary in vitro evaluation indicated that the 7-[4-(2-hydroxyiminoethyl)piperazin-1-yl] derivatives 3b-e possess distinct cytotoxicity profiles as compared with their alpha-methylene-gamma-butyrolactone counterparts, 4b,e: i.e., excellent activities against the renal cancer subpanel. Among them, 1-ethyl-6-fluoro-7-¿4-[2-(4-chlorophenyl)-2-hydroxyiminoethyl]-1-p ipe razinyl¿-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid (3d) demonstrated the most significant activities against renal cancer cell lines, with log GI(50) values of -6.40 against CAK-1, -6.14 against RXF 393, and -7.54 against UO-31, compared with a mean log GI(50) value of -5.03.
Emergency load shedding to avoid risks of voltage instability using indicators (1994)

This paper presents a new method to determine a viable load shedding scheme. This scheme presents to the system operator the location and amount of load to be shed to avoid a voltage collapse. In order to develop such a scheme in a timely fashion, indicators are developed to assess the risk of voltage collapse at a particular bus, and a sensitivity matrix coupling the amount of load to be shed and the indicator is computed. The method takes into account nonlinearities caused by generators reaching their limits of reactive power output. The advantages of the proposed method are viable network security, short computing times and low memory requirements due to the use of sparse vector techniques. The method developed has been tested with the 30 bus New-England test system and with a 206 bus 400 kV simplified French network with satisfactory results.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
How the Internet Works (8th Edition) (How It Works) (2006)

Simple, clear explanations walk you through every technologyDetailed explanations walk you through the technology.The Internet has changed the world... and, with everything from blogs to podcasts, Internet phones to video, it's still changing the world. Now, it's easy to understand how it all works! This book's big, brilliant, full-color illustrations and clear explanations make it all incredibly simple!DISCOVER HOW THE INTERNET REALLY WORKS... IT'S AMAZINGLY EASY!This new edition has been completely updated for today's hottest Internet technologies, Web connections, hardware, communications and entertainment services, and much more!·i? i? i? See how the Internet can deliver any kind of information, anywhere: web pages, email, music, video, phone calls, and more!·i? i? i? Understand the most exciting new Internet technologies, from blogs and podcasting to wikis and BitTorrent·i? i? i? Discover how your connection to the Internet works... wireless, cable modem, DSL, even cellphones·i? i? i? Go behind the scenes with today's most sophisticated websites, applications, and services·i? i? i? Protect yourself from the latest Internet dangers, including phishing, web surveillance, and wireless hackingi? Preston Gralla is the award-winning author of more than 30 books, including How the Internet Works, Complete Idiot's Guide to Internet Privacy and Security, Complete Idiot's Guide to Protecting Your Child Online, and How Wireless Works. He has writtenfrequently about security issues, computer technology, the Internet, and has been a columnist for many magazines, websitesand newspapers.
Subject No-hits Searches in an Academic Library Online Catalog: An Exploration of Two Potential Ameliorations (2004)

This paper describes a study that explored ways in which users’ subject-searching problems in a local online catalog might be reduced. On a weekly basis, the author reviewed catalog transaction logs to identify topics of subject searches retrieving no records for which appropriate information resources may actually be represented in the catalog. For topics thus identified, the author explored two potential ameliorations of the no-hits search results through the use of authority record cross-references and “pathfinder” records providing brief instructions on search refinement. This paper describes the study findings, discusses possible concerns regarding the amelioration methods used, outlines additional steps needed to determine whether the potential ameliorations make a difference to users’ searching experiences, and suggests related areas for further research.
The role of coherent optical systems in data processing (1966)

This paper describes a number of signal processing techniques in which coherent optical techniques play an important role. The techniques are powerful and of great versatility.
<i>Drosophila</i> acetylcholinesterase (1992)

In insects, acetylcholinesterase is mainly found in the central nervous system. It is expressed in the synapse where it hydrolyzes the neurotransmitter acetylcholine. Maturation of this protein involves several post-translational modifications. The precursor polypeptide is cut at three sites; the N-terminal signal peptide is removed, the C-terminal hydrophobic polypeptide is clipped off and replaced by a glycolipid anchor and the resulting peptide is cut into two polypeptides, corresponding to active subunits. Two of these active subunits are associated to form the final active glycosylated protein. We have expressed the protein via microinjection of an expression vector into Xenopus oocyte nuclei. When the complete cDNA is injected, the acetylcholinesterase formed is biochemically similar to the Drosophila-head acetylcholinesterase. However, the hydrophobic C-terminal peptide is not replaced by a glycolipid anchor. As a consequence, the enzyme is no longer externalized, the proteolytic cutting of the main peptide does not occur and a new polymerization form occurs. Although incompletely processed, this protein is enzymatically active. When a cDNA lacking the coding region of the C-terminal hydrophobic peptide is injected, the resulting acetylcholinesterase is hydrophilic, cleaved into two subunits and secreted into the incubation medium free of contaminants.
142. Some heterocyclic N-oxides (1950)

P. Mamalis and V. Petrow, J. Chem. Soc., 1950, 703 DOI: 10.1039/JR9500000703
Solubilization and characterization of GABA<sub>B</sub>receptor binding sites from porcine brain synaptic membranes (1993)

1. The characteristics of membrane bound GABAB receptors in pig brain are similar to those in rat brain as judged by in vitro binding experiments and sensitivity to GTP. The rank order of affinity of GABAB receptor ligands was CGP 54626 > GABA approximately (-)-baclofen >> CGP 35348 = CGP 36742 > (+)-baclofen in membranes from both species. 2. For solubilization of GABAB receptors from pig brain, washed membranes were preincubated with 5 mM MgSO4 and subsequently incubated with various detergents. 3-[(3-Cholamidopropyl)dimethyl-ammoniol]-1-propane sulphonate (CHAPS) (0.5%) proved to be the most successful, solubilizing 22.7 +/- 4.7% (mean +/- s.e. mean, n = 6) of GABAB receptors. 3. Binding of [3H]-GABA to GABAB receptors solubilized with 0.5% CHAPS exhibited similar characteristics to the binding at membrane bound receptors since, firstly, the Kd and Bmax values (around 30 nM and 450 fmol mg-1 protein, respectively) were comparable; secondly, stereospecific binding for baclofen was obtained in both forms; thirdly, the affinity for the agonists GABA and (-)-baclofen and the antagonists CGP 35348, CGP 36742 and CGP 54626 were the same; fourthly, comparable sensitivity to Ca2+ (2.5 mM) was observed and finally, a similar sensitivity to GTP was apparent. 4. Saturation experiments performed with the GABAB antagonist, [3H]-CGP 54626, indicated a higher Kd value and a lower Bmax value for solubilized (7.7 +/- 2.6 nM and 1033 +/- 41 fmol mg-1 protein, mean +/- s.e. mean, n = 3) than for membrane bound receptors (1.35 +/- 0.08 nM, 1171 +/- 20 fmol mg-1 protein, n = 3).
Protein solubility characteristics of commercial soy protein products (2003)

Abstract Solubility characteristics of commerical soy protein products (flours, concentrates, and isolates) were determined under various conditions. From the solubility profiles at various pH values and NaCl concentrations, soy protein isolates can be divided into three groups. One group had high solubility near the pl. Another group had low solubility near the pl, but high solubility at pH 11. The third group had low solubility even at pH 11. Except for the hydrolyzed products, the protein solubilities of the soy protein products at various salt concentrations were very low. Temperature did not significantly affect the protein solubility, although a few products showed more than a 20% increase at temperatures >50°C. Soy protein concentrates and soy protein isolates showed similar solubility profiles. The proteins in all commercial products (except flours) tested were denatured, as evident from the solubility profiles in the presence of salt and the enthalpy values from DSC.
A light-shield a-Si TFT with low dark-leakage currents (2003)

A light-shield amorphous silicon (a-Si:H) thin film transistor (TFT) with low dark leakage current is developed. The a-Si:H island edge of this TFT is selectively oxidized without affecting the metal/n/sup +/ a-Si:H layer contact quality, and thus the hole current flowing through the parasitic metal/intrinsic a-Si:H contact at that edge can be blocked. Using this technique, the TFT with effective mobility of 0.7 cm/sup 2//Vsec, subthreshold swing of 0.55 V/dec, and threshold voltage of 1.5 V can be achieved. In addition, the leakage current of the TFT is as low as 0.5 pA at high negative gate bias of -10 V and drain voltage of 10 V.
Tractional force generation by porcine Müller cells: paracrine stimulation by retinal pigment epithelium. (2000)

Secretory products from RPE cells throughout dedifferentiation contained biologically active quantities of Müller cell contraction promoters. Secretory activity increased during extended incubation in serum-free medium and during myofibroblastic dedifferentiation. Growth factor-specific neutralizing antibodies enabled the determination that insulin-like growth factor- and platelet-derived growth factor-related proteins were the secreted species to which Müller cells responded. Finally, gene expression of insulin-like growth factor 1 and platelet-derived growth factor A chain by porcine RPE cells was confirmed using reverse transcription-polymerase chain reaction. CONCLUSIONS. RPE cells are a viable source of biologically active quantities of two growth factors that stimulate extracellular matrix contraction by Müller cells. This secretory profile persists for extended periods in an otherwise serum-free environment and is enhanced during myofibroblastic dedifferentiation.
Grundlagen industrieller Produktion (1998)

Produktion ist nach Gutenberg als Kombination der Elementarfaktoren Arbeit, Material und Maschinen durch die derivativen Faktoren Planung und Organisation zum Zwecke der Leistungserstellung zu verstehen.1 In der industriellen Produktion werden mit der Arbeitsteilung, der Standardisierung und der Mechanisierung bzw. Automatisierung drei Instrumente eingesetzt, um die technische und ökonomische Effizienz zu erhöhen. Bei der technischen Effizienz wird auf das Verhältnis von Output zu Faktorinput, also auf die Produktivität abgestellt. Ökonomische Effizienz — Wirtschaftlichkeit — drückt sich in den durch die Produktion einer bestimmten Menge eines Erzeugnisses verursachten Kosten aus.
Averagine-Scaling Analysis and Fragment Ion Mass Defect Labeling in Peptide Mass Spectrometry (2008)

A method termed as the averagine-scaling analysis (ASA) is proposed for predictive design and selection of chemical reagents for modifying peptides, as well as for facile mass spectral analysis of peptide fragment ions with increased mass defects. The ASA method scales mass spectral data using the mass of the hypothetical averagine residue as reference. The scaling analysis is used in conjunction with a strategy of fragment ion mass defect labeling (FIMDL) for effectively using the broad, unoccupied mass zones in the low m/ z region of mass spectra. The FIMDL approach involves the solution modification of peptide termini with chemical reagents of large mass defects and the gas-phase generation of peptide terminal fragment ions that carry the FIMDL groups. The scaling analysis reveals that iodine has the highest FIMDL efficiency among halogens. Iodine-containing reagents, 4-iodophenylisocyanate and 4-iodophenylisothiocyanate, are used to label primary amines on peptides to demonstrate the scaling analysis. The ASA method successfully distinguishes peptide fragment ions with and without an FIMDL group and specifically and efficiently reduces the data complexity of peptide tandem mass spectra. The combination of ASA with FIMDL extends the instrument suitability for the mass defect analysis from mass spectrometers of ultrahigh mass resolution and accuracy to those of medium ones. This combination is expected to have a profound impact on peptide tandem mass spectrometry.
Underwater Light-Beam Propagation in the Small-Angle-Scattering Approximation (1972)

The radiance N, resulting from an initially narrow collimated beam, propagating in the ocean, is investigated with the aid of the small-angle-scattering theory of electron scattering. The resulting expression for N is calculated approximately and compared both with experiments and numerical calculations. Various properties of the approximate expression for N are explored; an observer, located off the axis of the beam at an axial distance z from the source, who attempts to determine the direction to the source by seeking the maximum of N with respect to ray direction, would sight a point on the beam axis at a distance z/3 from the source.
Decision tree based data classification for marine wireless communication (2015)

Wireless data communication along with data classification techniques has got wider acceptance in various marine wireless applications. This paper exploits the power of machine learning algorithm to classify wireless communication dataset for effective decision making in marine sector. Fishing is among the most risky of professions in the world because once out on the sea, the fishermen are subject to various oceanographic conditions. The unreliable communication between the fishing fleets and to the shore is a serious problem when they face emergency situations like bad weather, border attacks, natural calamities etc. This paper is intended to develop an algorithm to determine the most influential parameters by considering signal strength, wind speed etc. which helps to track, classify and disseminate information to the fishing fleets while they are in deep sea. A decision tree based classification is proposed to find the best node based on the signal strength and the environmental conditions and the scenario has been simulated using NS2 platform. An ensemble based learning algorithm with bagging and adaptive boosting in C4.5 is also employed for improving the performance. The performance comparison has been done and the result shows that the boosted decision tree algorithm has got highest classification accuracy of 95.73%.
Application of urea complexes in the purification of fatty acids, esters, and alcohols. II. Oleic acid and methyl oleate from olive oil (1952)

Summary Oleic acid and methyl oleate of high purity (97–99%) and substantially free (0.2% or less) of polyunsaturated contaminants have been isolated in 60–70% yield from the fatty acids or methyl esters of olive oil by procedures which require only one precipitation of urea complexes (single dose of urea technique) one low‐temperature crystallization, and one fractional distillation. The best yields of the highest purity acids are obtained when saturates are removed by fractional crystallization prior to a final distillation. The urea complex separation technique can be applied directly to olive oil methanolysis reaction mixtures without prior isolation of the mixed methyl esters. Oleic acid or methyl oleate obtained by decomposition of urea complexes contains approximately 1% of polyunsaturated contaminants. After fractional distillation or crystallization to separate saturated acids the oleic content is about 90–97%. Such products are satisfactory for many uses and in their preparation low‐temperature (−50° or lower) crystallizations are not required. Solution and slurry techniques have been studied for the preparation of urea complexes from olive oil acids or esters. The former technique is preferred when a maximum of about 1,000 grams of acids or esters are to be processed. The latter is preferred for larger size experiments mainly because the volume of methanol employed is cut in half, the time is shorter, and also because yields are about 5% higher.
A compact Nitric oxide supply for medical application (2007)

In 1987, Nitric oxide (NO) was identified as an effective treatment involving endothelium-derived relaxing factor (EDRF) <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1</sup> . NO has attracted lots of attention from the discovery. And now, NO is increasingly being used in medical treatments for some illness related lung. Currently a system of NO inhalation has a gas cylinder of N <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> mixed with a high concentration of NO. However, this method is potentially risky due to the possibility of accidental leak of NO from the cylinder. In addition, gas cylinder is too heavy to carry around and too expensive to be used for all patients. Therefore, an on-site generation of NO would be highly desirable for patient, who is suffering lung disease, and medical doctors. Previous researches reported that NO is produced by pulsed arc discharge in the mixture of N <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> and O <inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> , and NO concentration increases with the increasing of pulse repetition rate and energy storage capacitance <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2–4</sup> . In this paper, the detail about a prototype of NO generator by pulsed arc discharge based on the optimal discharge condition has been reported. As the results, it is observed that NO concentration in the outlet gas is about almost 1000ppm and rise time is about 20 to 30 sec. These conditions are enough for NO inhalation therapy. Additionally, NO concentration is adjustable by changing pulse repetition rate.