gebhart/patrepeval huggingface dataset:
Progress on the Selective Removal of H<sub>2</sub>S from Gasified Coal Using an Immobilized Liquid Membrane (1977)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTProgress on the Selective Removal of H2S from Gasified Coal Using an Immobilized Liquid MembraneStephen L. Matson, Carlyle S. Herrick, and William J. WardCite this: Ind. Eng. Chem. Proc. Des. Dev. 1977, 16, 3, 370–374Publication Date (Print):July 1, 1977Publication History Published online1 May 2002Published inissue 1 July 1977https://pubs.acs.org/doi/10.1021/i260063a022https://doi.org/10.1021/i260063a022research-articleACS PublicationsRequest reuse permissionsArticle Views377Altmetric-Citations63LEARN 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
Evidence that hsp90 Is Involved in the Altered Interactions of<i>Acanthamoeba castellanii</i>Variants with Bacteria (2004)

There are many similarities between the interactions of environmental protozoa with pathogenic bacterial species and those observed in mammalian macrophages. Since single-celled protozoa predate mammalian hosts, it is likely that interactions in environmental biofilms have selected for many of the bacterial virulence mechanisms responsible for human disease. In order to better understand bacterial-phagocyte interactions, we developed a selection for Acanthamoeba castellanii variants that are more resistant to killing by bacterial pathogens. We identified four amoebal clones that display decreased phagocytosis of bacteria but no difference in uptake of latex beads compared to wild-type amoebae. These amoebal variants display differences in cellular morphology, partial resistance to killing by bacteria, more bactericidal activity, and higher frequencies of lysosome fusion with the bacterial vacuole. Three proteins are present at lower levels in these variants than in wild-type amoebae, and matrix-assisted laser desorption ionization-time of flight mass spectrometry allowed identification of two of them as actin and hsp90. We found that specific inhibitors of hsp90 produce a similar phenotypic effect in macrophages. These data suggest that hsp90 plays a role in phagocytic and, possibly, bactericidal pathways that affect interactions of phagocytic cells with bacteria.
The 'Electronic Shoe' for jogging, sports and convalescence (1989)

A stride-length measurement system is described which calculates the distance traveled by a running person. The basic principle is an ultrasonic distance-measurement technique. Data from the electronic circuitry built into the shoes are transmitted wirelessly to a computer box which is the size of a pocket calculator. The system can be applied in the field of competitive or popular sport and also for observation of heart patients in the rehabilitation phase. During running the computer box displays online the distance traveled with an accuracy of about 5%. It can respond by acoustic signals if the runner does not follow a predetermined running speed profile.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
An aqueous ammonia sensor based on an inkjet-printed polyaniline nanoparticle-modified electrode (2008)

A sensor for the amperometric detection of aqueous ammonia was fabricated using the inkjet printing of dodecylbenzene sulfonate (DBSA)-doped polyaniline nanoparticles (nanoPANI) onto a screen-printed carbon paste electrode. The combination of the environmentally inert, aqueous nanoparticle dispersion with the inkjet printing technique allowed the rapid fabrication of sensors based on polyaniline that was not easily achievable in the past due to the lack of processability of bulk forms of the conducting polymer. The resulting modified electrode was characterised with respect to its operating pH and number of print layers and was found to perform optimally at near neutral pH with four nanoPANI inkjet-printed layers. The sensor was tested in a flow injection system for its response to aqueous ammonia using amperometric detection at -0.3 V vs. Ag/AgCl pseudo-reference and was found to have reproducibility to injections of ammonia of below 5% RSD and good sensitivity with an experimental detection limit of 20 microM and a theoretical detection limit of 3.17 microM (0.54 ppm). The sensor was also tested for its day-to-day stability and its response towards a range of interferents common to refrigerant waste waters. This system allows the rapid production of an ultra-low-cost, solid state, polyaniline-based aqueous ammonia sensor.
Optimized E-Plane T-Junction Series Power Dividers (1987)

A rigorous design theory for compact rectangrdar waveguide power dividers with unsymmetrical series E-plane T-junctions of suitably optimized different waveguide heights and distances is described. The method is based on field expansion in normalized eigenmodes which yield directly the modal S-matrix of two appropriate key building blocks. The immediate modal S-matrix combination of the individual structures includes the effects of all step discontinuities and their mutual higher order mode interaction. Computer-optimized -3.01 dB, -4.77 dB, and -6.02 dB power divider examples achieve about +-0.25 dB coupling deviation at the output ports, together with about 30 dB return loss at the input port, for the chosen design frequencies of 12 GHz, 31.6 GHz, and 15.5 GHz. The -4.77 dB power divider provides a bandwidth of about 8 percent. The theory is verified by measurements.
Table image segmentation (2002)

Algorithm for table image segmentation, a part of complete document recognition system is presented. The proposed approach introduces a concept of table grid which can serve for advanced methods of table structure analysis. It provides a layer of terminal symbols for the table, which is used by syntactical methods. Detailed discussion of grid detection is presented which is performed through the analysis of connected components projection profile. Simple rules for analysis of table structure cover majority of real life tables. The system is implemented, rested, and is now extensively used in FineReader OCR product.
Design and Application of H.264 Video Encoder Based on TMS320DM642 (2005)

The design and realizing of H.264 video coder becomes a hotspot in video communication area. Considering the system's architecture and characteristic of TMS320DM642, some optimization technologies about H.264 algorithm and DSP, which can provide useful reference in video applications, are proposed.
Synthetic Utilization of Polynitroaromatic Compounds. 2. Synthesis of 4,6-Dinitro-1,2-benzisothiazol-3-ones and 4,6-Dinitro-1,2-benzisothiazoles from 2-Benzylthio-4,6-dinitrobenzamides (2000)

Cyclization of 2-benzylthio-4,6-dinitrobenzamides to 4,6-dinitro-1, 2-benzisothiazol-3-ones was achieved using SO(2)Cl(2) in CH(2)Cl(2) at room temperature. Alkylation of these heterocycles proceeded in a nonregioselective manner to yield a mixture of corresponding O- and N-alkylated products. Oxidation of 4,6-dinitro-1,2-benzisothiazoles (50% H(2)O(2) in AcOH) afforded the corresponding S-oxides and S, S-dioxides, depending on oxidation conditions. Unexpectedly, oxidation of a 3-methoxy derivative resulted in ring opening with the formation of the corresponding sulfamide. Chlorination of these 4,6-dinitro-1,2-benzisothiazol-3-ones (PCl(5)-POCl(3)) gave the expected 3-chloroisothiazoles.
Stability criteria for AC power systems with regulated loads (1997)

High-bandwidth regulated converter loads, or constant-power loads (CPLs) exhibit a negative incremental input resistance within the regulation bandwidth of the power converter. Distributed power systems which include a large percentage of CPLs and contain energy storage devices may be susceptible to potentially destabilizing interactions of these elements. For the stand-alone dc-dc converter, and in distributed dc systems, design requirements that guarantee stability have been previously advanced and are extensively used in the design and specification of these systems. However, prior to this research, design-oriented stability criteria have not been developed for distributed ac and hybrid ac/dc systems with CPLs. In this research, a mathematical framework based on the generalized Nyquist criterion, reference frame theory, and multivariable control is set forth for dynamic stability assessment of distributed ac systems. Numerical and analytical techniques are established for determining the frequency-dependent impedance characteristics of representative sources and loads in the appropriate frame of reference. Moreover, design-oriented stability criteria analogous to those used in dc systems are derived. The purpose of these criteria is to ensure a safe stability margin without imposing undue restrictions on component designers and system integrators. Finally, the advanced criteria are used to assess the stability of several example systems and to evaluate different stabilizing control strategies, including passive and active approaches.
Brief Review of Motor Current Signature Analysis (2015)

Motor electrical current signature analysis (MCSA) is sensing an electrical signal containing current components that are direct by-product of unique rotating flux components. Anomalies in operation of the motor modify harmonic content of motor supply current. This paper presents brief introductory review of the method including fundamentals, fault detection techniques and current signatures of various faults.
An architecture for overlaying private clouds on public providers (2012)

Organizations shifting to a public cloud infrastructure face potential hurdles regarding control and security, and must acquire a new set of best practices regarding developing and deploying to a cloud infrastructure. We propose a reference architecture for a virtual private cloud built on cross-provider on-demand compute instances, with a set of components, services, and algorithms to produce a managed platform that reduces the level of trust required for infrastructure-as-a-service (IaaS) providers, increases control and isolation, improves security and data protection, and allows architects, developers, and operations staff to deploy applications to the cloud using their existing body of knowledge and best practices. Two concrete architectures based on this reference are presented, and a prototype implementation is described and tested.
Selection Bias in Web Surveys and the Use of Propensity Scores (2009)

Web surveys are a popular survey mode, but the subpopulation with Internet access may not represent the population of interest. The authors investigate whether adjusting using weights or matching on a small set of variables makes the distributions of target variables representative of the population. This application has a rich sampling design; the Internet sample is part of an existing probability sample, the Health and Retirement Study, that is representative of the U.S. population aged 50 and older. For the dichotomous variables investigated, the adjustment helps. On average, the sample means in the Internet access sample differ by 6.5 percent before and 3.7 percent after adjustment. Still, a large number of adjusted estimates remain significantly different from their target estimates based on the complete sample. This casts doubt on the common procedure to use only a few variables to correct for the selectivity of convenience samples.
Intelligent operational dashboards for smarter commerce using big data (2014)

In the retail industry, business intelligence (BI) solutions have traditionally required a static data model for operational reporting. These solutions often do not use streaming data that can provide operational intelligence (OI). However, the emergence of multi-channel selling and fulfillment has increased the need for dynamic data analytics to process streaming data. SCM (supply chain management) businesses can gain new operational insights by taking advantage of the unique capabilities of big data systems and by using the right approach to process large volumes of unstructured streaming data. This paper reviews the current research on OI that uses streaming data and proposes an approach to design intelligent operational dashboards for the SCM systems. Data is streamed from a relational database management system (RDBMS) to a big data database, which helps to apply the principles of correlation and to derive an intelligent data model. Real-time operational dashboards, derived from such data models, can be used for strategic BI reporting (using historical data), operational BI reporting (using streaming data), and alerting. We have used the IBM Sterling Order Management System to demonstrate the proposed approach.
The Chemokine Decoy Receptor D6 Prevents Excessive Inflammation and Adverse Ventricular Remodeling After Myocardial Infarction (2012)

We show for the first time that the chemokine decoy receptor D6 limits CC-chemokine-dependent pathogenic inflammation and is required for adequate cardiac remodeling after myocardial infarction.
Studies on the role of UDP-glucose dehydrogenase in polysaccharide biosynthesis. (2004)

Polysaccharides are found in all forms of life and serve diverse purposes. They are enzymatically synthesised from activated monosaccharide precursors, nucleotide sugars. One such nucleotide sugar is UDP-glucuronic acid, which is formed from UDP-glucose by the UDP-glucose dehydrogenase (UGDH) enzyme. UGDH has been proposed to have a regulatory role in the biosynthesis of polysaccharides. The aim of the studies presented in this thesis was to investigate the role of UGDH in the polysaccharide biosynthesis in three different systems: human cell culture, bacterial cultures and growing plants. The effects of UGDH-overexpression on polysaccharide biosyntheses and, when achievable, on UDP-sugar levels, were investigated. A mammalian UGDH was cloned from a kidney cDNA library. Transient expression of the cloned enzyme in mammalian cells led to an increased UGDH-activity. Northern blotting analyses revealed a single transcript of 2.6 kb in adult mouse tissues whereas human tissues expressed a predominant transcript of 3.2 kb and a minor transcript of 2.6 kb. Overexpression of the bovine UGDH in mammalian cells induced increased synthesis of the glycosaminoglycans; heparan sulphate, chondroitin sulphate and hyaluronan, without changing their relative proportions. The effects on glycosaminoglycan synthesis caused by an increased demand of UDP-glucuronic acid were studied by overexpression of hyaluronan synthase (Has3), which requires UDP-glucuronic acid as substrate. Overexpression of Has3 and coexpression of Has3 and UGDH resulted in highly augmented production of hyaluronan without noticeably affecting heparan sulfate and chondroitin sulfate synthesis. Expression of the bacterial UGDH in E. coli resulted in increased formation of UDP-glucuronic acid, but, unexpectedly, also to synthesis of fewer K5 polysaccharide chains. Overexpression of UGD1, one of four A. thaliana UGDH genes, in A. thaliana, resulted in dwarfism. Analysis of the cell wall polysaccharides showed alteration in saccharide composition. Paradoxically, the UDP-sugars derived from UDP-glucuronic acid decreased in amount.
Getting Chalk: Distant Reflections on Deaning (1997)

Abstract Deaning is serious business; however, it is a mistake for deans to take themselves too seriously, especially in the eyes of faculty and students.
Combining multiple knowledge bases (1991)

Combining knowledge present in multiple knowledge base systems into a single knowledge base is discussed. A knowledge based system can be considered an extension of a deductive database in that it permits function symbols as part of the theory. Alternative knowledge bases that deal with the same subject matter are considered. The authors define the concept of combining knowledge present in a set of knowledge bases and present algorithms to maximally combine them so that the combination is consistent with respect to the integrity constraints associated with the knowledge bases. For this, the authors define the concept of maximality and prove that the algorithms presented combine the knowledge bases to generate a maximal theory. The authors also discuss the relationships between combining multiple knowledge bases and the view update problem.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Preparation of silicon‐/phosphorous‐containing epoxy resins from the fusion process to bring a synergistic effect on improving the resins' thermal stability and flame retardancy (2002)

Abstract Epoxy resins containing both phosphorous and silicon were prepared via the fusion process of reacting a phosphorous diol and a silicon diol with a bisphenol‐A‐type epoxy. With various feeding ratios of the reactants, epoxy resins with different phosphorous and silicon contents were obtained. Through curing the epoxies with diaminodiphenylmethane, the cured epoxy resins exhibit tailored glass transition temperatures (159–77°C), good thermal stability (>320°C), and high char yields at 700°C under air atmosphere. The high char yield was demonstrated to come from the synergistic effect of phosphorous and silicon, where phosphorous enriches char formation and silicon protects the char from thermal degradation. Moreover, high flame retardancy of the epoxy resins was found by the high LOI value of 42.5. The relationship of the char yields at 700°C under air atmosphere (ρ) and the LOI values of the epoxy resins could be expressed as LOI = 0.62ρ + 19.2. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 87: 404–411, 2003
Temperature compensated quad analog switch (1979)

Describes the circuit design and the characteristic performance of a quad analog switch. The striking features of this product are the stability of the ON-resistance with variations in temperature, the protection against overvoltages and loss of power, and the high-speed switching operation. The temperature coefficient of the nominal switch resistance is 250 ppm//spl deg/C, and in the worst case spread over the full military temperature range. Analog signals of /spl plusmn/35 V in amplitude may be applied at the input without causing any permanent damage to the device, even when the supply voltages fail. The typical switch turns ON in 250 ns and turns OFF in 200 ns, ensuring break-before-make action. The circuit is integrated using a well-controlled bipolar/ion implanted JFET process.
Distribution of liposomes containing mannobiose esters of fatty acid in rats (1995)

The biodistribution of liposomes modified by mannobiose residues was studied in rat. The purpose of the modification was to target the liposomes to macrophages. Mannobiose mono arachidic acid esters (MAEs) were synthesized and used to modify the surface of liposomes. It was shown by gel permeation chromatography that the MAE was preferentially incorporated into the membrane of the liposomes. After intravenous administration, mannobiose-modified liposomes were eliminated from the systemic circulation more rapidly than control liposomes without the modification. Whilst the modification did not affect the distribution of liposomes to kidney, lung, or thymus, it increased the distribution to liver and spleen. The uptake in the hepatic parenchymal cell fraction was not influenced by MAE incorporation. Taking into account the fact that endothelial cells do not take up particles whose size is > 100 nm, the increase in the distribution to liver were ascribed to an increase in uptake by Kupffer cells. These results suggest that mannobiose mono fatty acid esters are useful in the targeting of liposomes to Kupffer cells and other macrophages.
Scaling Software Security Analysis to Millions of Malicious Programs and Billions of Lines of Code (2013)

Software security is a big data problem. The volume of new software artifacts created far outpaces the current capacity of software analysis. This gap has brought an urgent challenge to our security community—scalability. If our techniques cannot cope with an ever increasing volume of software, we will always be one step behind attackers. Thus developing scalable analysis to bridge the gap is essential. In this dissertation, we argue that automatic code reuse detection enables an efficient data reduction of a high volume of incoming malware for downstream analysis and enhances software security by efficiently finding known vulnerabilities across large code bases. In order to demonstrate the benefits of automatic software similarity detection, we discuss two representative problems that are remedied by scalable analysis: malware triage and unpatched code clone detection. First, we tackle the onslaught of malware. Although over one million new malware are reported each day, existing research shows that most malware are not written from scratch; instead, they are automatically generated variants of existing malware. When groups of highly similar variants are clustered together, new malware more easily stands out. Unfortunately, current systems struggle with handling this high volume of malware. We scale clustering using feature hashing and perform semantic analysis using co-clustering. Our evaluation demonstrates that these techniques are an order of magnitude faster than previous systems and automatically discover highly correlated features and malware groups. Furthermore, we design algorithms to infer evolutionary relationships among malware, which helps analysts understand trends over time and make informed decisions about which malware to analyze first. Second, we address the problem of detecting unpatched code clones at scale. When buggy code gets copied from project to project, eventually all projects will need to be patched. We call clones of buggy code that have been fixed in only a subset of projects unpatched code clones. Unfortunately, code copying is usually ad-hoc and is often not tracked, which makes it challenging to identify all unpatched vulnerabilities in code bases<br>at the scale of entire OS distributions. We scale unpatched code clone detection to spot over<br>15,000 latent security vulnerabilities in 2.1 billion lines of code from the Linux kernel, all<br>Debian and Ubuntu packages, and all C/C++ projects in SourceForge in three hours on a<br>single machine. To the best of our knowledge, this is the largest set of bugs ever reported in a single paper.<br><br>