gebhart/patrepeval huggingface dataset:
Study on Electromagnetic Shielding Foam Concrete (2014)

Electromagnetic shielding effectiveness of different density foam concrete was tested,the results showed that when average pore diameter reach certain diameter,foam concrete gain electromagnetic shielding effectiveness.During the preparation of foam concrete,graphite and short carbon fiber was added,so shielding effectiveness of foam concrete was improved.Electromagnetic shielding effectiveness of foam concrete with different graphite and carbon fiber content was studied.The results showed that graphite does not increase electromagnetic shielding of foam concrete.At 0-100MHz frequency range,with the frequency increases,shielding effectiveness of carbon fiber foam concrete decreases.At 100-1500MHz frequency range,with the frequency increases,shielding effectiveness increases.In the vicinity of 100MHz,electromagnetic shielding effectiveness of carbon fiber foam concrete reach minimum.
Moving towards quality attribute driven software architecture reconstruction (2004)

There are many good reasons why organizations shouldperform software architecture reconstructions. However,few organizations are willing to pay for the effort. Softwarearchitecture reconstruction must be viewed not as an efforton its own but as a contribution in a broader technicalcontext, such as the streamlining of products into a productline or the modernization of systems that hit theirarchitectural borders. In these contexts software architectsfrequently need to reason about existing systems, forexample to lower adoption and technical barriers for newtechnology approaches. We propose a Quality AttributeDriven Software Architecture Reconstruction (QADSAR)approach where this kind of reasoning is driven by theanalysis of quality attribute scenarios.This paper introduces a quality attribute driven perspectiveon software architecture reconstruction. It presents atechnical reasoning framework and illuminates theinformation that is required from the reconstruction processto link the knowledge gained back to the business goals ofan organization. The paper illustrates the techniques bypresenting a real-world case study.
Partial oxidation reformer development for fuel cell vehicles (1997)

A bench-scale partial oxidation reformer that is compact (1.8 L) and light-weight has been demonstrated with methanol fuel. The hydrogen output from the reactor had a lower heating value of 12 kW. The gas contained over 50% hydrogen and less than 1% carbon monoxide. A novel class of catalyst materials has been identified which is able to convert various hydrocarbons, including gasoline, to a hydrogen-rich product gas. Tested in a micro-reactor with gasoline and oxygen at 760/spl deg/C, these catalysts yielded a product gas containing over 60% hydrogen.
[Synthetic inhibitors of serine proteinases. 34. The effect of modification of the amidino function of N-alpha-substituted 4-amidinophenylalanine amides on inhibitory activity]. (1988)

Cyclic amides of N alpha-arylsulfonylated 4-amidinophenylalanine are selective inhibitors of thrombin. The exchange of the amidino function for an aminomethyl residue does not influence the selectivity and potency of their inhibitory activity. In contrast, the modification of the amidino function of the N alpha-arylsulfonylaminoacylated compound N alpha-(2-naphthylsulfonylglycyl)-4-amidinophenylalanine piperidide results in a drastic loss of inhibitory activity. Only the oxamidino derivative possesses considerable high affinity for thrombin. Obviously, in tight binding inhibitors of thrombin structural variation results in any case in a loss of inhibitory activity.
A coherent maximum likelihood head position estimator for PERM disk drives (1996)

A coherent digital maximum-likelihood (ML) head position estimator was proposed and examined for sampled-servo magnetic disk drives. Estimating the ML head position is obtained through four ML amplitude estimators of each servo mark readback pulse. When compared to a conventional analog integration detector about 1.7 dB improvement in position estimation accuracy was obtained. To generate a servo clock for coherent estimation, an ML phase estimating digital phase-locked loop (DPLL) was also developed. Since five inner product operations for amplitude and phase estimation are performed by a time-shared multiplier-accumulator, this ML head position estimator is applicable for use in small scale hardware and adaptable to ICs.
Whispering gallery mode microresonators : Fundamentals and applications (2011)

nombre de pages 54
Effect of sulphur levels on transgenic double‐low <i>Brassica napus</i> plants expressing a seed‐specific gene encoding a methionine‐rich 2S albumin (1996)

Abstract The effects of supplying varying levels of sulphur to transgenic Brassica napus plants expressing the Brazil nut 2S albumin in their seeds were studied in the field. The aim was to determine if transgenic plants responded differently to such stress, and whether expression of the transgene would be effected. The transgenic plants were similar to normal plants in their response to sulphur stress. Increases in sulphur concentration were correlated with an increase in fresh and dry matter quantities as well as an increase in the carbon, nitrogen and sulphur levels in the vegetative parts of the plants. No effect on yield parameters was observed. Increasing sulphur levels resulted in an increase in the glucosinolate content, and shifts in fatty acid composition were observed. None of these changes could be correlated with the response of the transgene. The expression of the latter was altered at neither the mRNA nor The protein levels, presumably because the promoter used does not respond directly to sulphur level changes. The procedures used to create the transgenic plants in this work appear not to result in plants that respond to sulphur stress differently from normal plants in the ranges studied.
Methylation of Aromatic Hydrocarbons by Dimethyl Sulfoxide in the Presence of Base<sup>1</sup> (1966)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMethylation of Aromatic Hydrocarbons by Dimethyl Sulfoxide in the Presence of Base1Glen A. Russell and Steven A. WeinerCite this: J. Org. Chem. 1966, 31, 1, 248–251Publication Date (Print):January 1, 1966Publication History Published online1 May 2002Published inissue 1 January 1966https://pubs.acs.org/doi/10.1021/jo01339a056https://doi.org/10.1021/jo01339a056research-articleACS PublicationsRequest reuse permissionsArticle Views1435Altmetric-Citations98LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
External magnetic field active compensation for large shipboard-type AC machines (2002)

The compensation of exterior magnetic field (EMF) in unbounded regions for a dynamic system, and in particular for large shipboard-type electrical machines, is a very specific and challenging research area. The report describes the part of the larger project pertinent to EMC of the shipboard-type large induction motors and synchronous machines. As a part of the project, a massive experimental work was developed to detect and investigate the types of the EMF generated by the shipboard-type electrical equipment in the outer space. Also as a part of the project, simplified spherical harmonics techniques were used to form the AC machines' multipole spectral images (MSI) and the linear-independent parameters of the MSI were determined. The EMC systems design and analysis were based on the generalised EMC equation solution by means of different control networks and adjustment technologies. The structure of the report is organised as follows: the history of the problem and the report main features; the fundamentals of AC machines EMF analysis based on MSI approach and a variety of EMF experimental results; derivation of a generalised EMC equation and generalised system network, both built on MSI techniques; and an application of the EMC systems for the standard large shipboard asynchronous and synchronous machines.
Membrane probe technology for MCM Known-Good-Die (2002)

A new type of membrane probe, which might be called a Universal Membrane Probe (UMP), as a standard Known-Good-Die (KGD) solution for Multichip Module (MCM) manufacture is described. The membrane consists of TAB tape mounted with an array of several thousands micro-bumps. The bumps are connected in a radial pattern and the pitch of the bumps is equal to the pitch of the I/O pads in LSIs. The advantage of this new membrane is that a single wiring pattern is applicable to many die designs without the need for customizing. In this paper, two KGD applications of the new membrane are investigated, one is a wafer probe and the other a burn-in socket.
Reconfigurable ECO Cells for Timing Closure and IR Drop Minimization (2009)

Unused spare cells occur inevitably in traditional engineering change order (ECO) design flow. It results in inefficient area usage, more leakage, and more IR drop impacts. To tackle these problems, a reconfigurable cell is proposed, which serves the dual purposes of decoupling capacitance and spare cell in this paper. Before ECO is applied, these cells are preplaced as decoupling capacitors. When ECO is applied, these cells are configured as functional cells. To demonstrate the efficiency of our configurable cell, we propose an algorithm for timing closure and IR drop minimization. Compared with traditional ECO flow, our method shows 15% reduction in maximum IR drop and 9% reduction in leakage before applying ECO, and 7% reduction in maximum IR drop after applying ECO, with 10% area of spare cells. In addition, we show that there remain less unsolved timing-violation paths after applying our ECO timing optimization flow due to less IR drop and free selection of ECO gate type.
Dithienylpiperidylthenilates (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDithienylpiperidylthenilatesRobert D. Schuetz and George P. NillesCite this: J. Med. Chem. 1970, 13, 6, 1249Publication Date (Print):November 1, 1970Publication History Published online1 May 2002Published inissue 1 November 1970https://pubs.acs.org/doi/10.1021/jm00300a067https://doi.org/10.1021/jm00300a067research-articleACS PublicationsRequest reuse permissionsArticle Views77Altmetric-Citations3LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
Heterocyclic studies. Part X. 4-Phenylpteridine and some methyl derivatives (1969)

Suitable nitration conditions for obtaining two mononitro- and two dinitro-derivatives of 2,4-dihydroxy-6-phenyl-pyrimidine are described. The 5-nitro-compound was converted into 4-phenylpteridine and its 2- and 7-methyl, 2,7- and 6,7-dimethyl, and 2,6,7-trimethyl derivatives.None of the compounds was appreciably hydrated in aqueous solution as the neutral molecule but 4-phenyl-pteridine and its 2-methyl derivative formed 5,6,7,8-dihydrated cations. The compounds containing 6- or 7-methyl groups were unstable as cations and apparently underwent dimerisation and oxidation in strongly acidic solutions.
Conformational gating of DNA conductance (2015)

DNA is a promising molecule for applications in molecular electronics because of its unique electronic and self-assembly properties. Here we report that the conductance of DNA duplexes increases by approximately one order of magnitude when its conformation is changed from the B-form to the A-form. This large conductance increase is fully reversible, and by controlling the chemical environment, the conductance can be repeatedly switched between the two values. The conductance of the two conformations displays weak length dependencies, as is expected for guanine-rich sequences, and can be fit with a coherence-corrected hopping model. These results are supported by ab initio electronic structure calculations that indicate that the highest occupied molecular orbital is more disperse in the A-form DNA case. These results demonstrate that DNA can behave as a promising molecular switch for molecular electronics applications and also provide additional insights into the huge dispersion of DNA conductance values found in the literature.
Vertically aligned nickel nanowire/epoxy composite for electrical and thermal conducting material (2012)

The vertically aligned nickel nanowire/epoxy composite for electrical and thermal conducting material was investigated in this research. The nickel nanowires were synthesized by template-assisted electro-deposition method using a high aspect-ratio anodic aluminum oxide (AAO) membrane. The diameter of the nickel nanowire was 200 nm, and the length of the nanowires was around 30 μm. The nickel nanowires were able to align vertically under external magnetic field while curing due to the ferromagnetic property of nickel nanowires. Epoxy with the nickel nanowires arranged in the horizontal and the vertical orientations along the applied external magnetic field of 300 ± 50 Gauss. The optical microscope images and Scanning Electron Microscopy (SEM) images revealed a good alignment of the nickel nanowires along with the external magnetic field.
Targeting F Box Protein Fbxo3 To Control Cytokine-Driven Inflammation (2013)

Cytokine-driven inflammation underlies the pathobiology of a wide array of infectious and immune-related disorders. The TNFR-associated factor (TRAF) proteins have a vital role in innate immunity by conveying signals from cell surface receptors to elicit transcriptional activation of genes encoding proinflammatory cytokines. We discovered that a ubiquitin E3 ligase F box component, termed Fbxo3, potently stimulates cytokine secretion from human inflammatory cells by mediating the degradation of the TRAF inhibitory protein, Fbxl2. Analysis of the Fbxo3 C-terminal structure revealed that the bacterial-like ApaG molecular signature was indispensible for mediating Fbxl2 disposal and stimulating cytokine secretion. By targeting this ApaG motif, we developed a highly unique, selective genus of small-molecule Fbxo3 inhibitors that by reducing TRAF protein levels, potently inhibited cytokine release from human blood mononuclear cells. The Fbxo3 inhibitors effectively lessened the severity of viral pneumonia, septic shock, colitis, and cytokine-driven inflammation systemically in murine models. Thus, pharmacological targeting of Fbxo3 might be a promising strategy for immune-related disorders characterized by a heightened host inflammatory response.
Fe-Mg Interdiffusion in (Mg,Fe)SiO <sub>3</sub> Perovskite and Lower Mantle Reequilibration (2005)

Fe-Mg interdiffusion coefficients for (Mg,Fe)SiO3 perovskite have been measured at pressures of 22 to 26 gigapascals and temperatures between 1973 and 2273 kelvin. Perovskite Fe-Mg interdiffusion is as slow as Si self-diffusion and is orders of magnitude slower than Fe-Mg diffusion in other mantle minerals. Length scales over which chemical heterogeneities can homogenize, throughout the depth range of the lower mantle, are limited to a few meters even on time scales equivalent to the age of Earth. Heterogeneities can therefore only equilibrate chemically when they are stretched and thinned by intense deformation.
A spectrum shaping technique to control spectrum emission of UTRA LTE user equipment (2007)

For the UTRA long term evolution (LTE), the transmit signal spectrum must comply with stringent spectrum emission mask requirements because of very low guard band size for high spectral efficiency. Compared to e.g. WCDMA, the requirements are tightened, which calls for efficient user equipment (UE) transmitter design, to balance the tradeoff among performance and hardware complexity. In this paper a spectrum shaping technique suitable for LTE user equipment is proposed and evaluated. The key component of this technique is an inverse Chebyshev digital IIR filter which has maximally flat in the passband and sharp transition from passband to stopband. We compare this technique with the well-known time windowing method which offers low implementation complexity. We study the two techniques impact on both error vector magnitude (EVM) and spectrum emission for two different LTE system bandwidths and for various bandwidth allocations for the user. Results show that for wideband setting (10 MHz) both techniques are able to produce acceptable EVM values less than 0.2%. However, for narrowband setting (1.4 MHz), only digital filtering performs sufficiently well since the time windowing method fails when the window overlap size is greater than the cyclic prefix length.
Recombination between genes encoding major outer surface proteins A and B of <i>Borrelia burgdorferi</i> (1992)

Borrelia burgdorferi causes Lyme disease, a multisystem illness that can persist in humans for many years. We describe recombination between homologous genes encoding the major outer surface proteins (Osps) A and B of B. burgdorferi which both deletes osp gene sequences and creates chimaeric gene fusions. Recombinant osp genes occur in multiple strains and encode unique proteins that lack some characteristic Osp epitopes. Antigenic variation in Osp through recombination may be relevant to the persistence of B. burgdorferi in an infected host, and has important implications for the utility of OspA and OspB as diagnostic or vaccine candidates for Lyme disease. We also describe Osp variation arising from nonsense mutations and sequence divergence, which may also represent significant sources of Osp polymorphism.
Conflict of Interest Regarding Information Transparency in a Business-to-Business Electronic Market with Two-Sided Competition (2007)

As a platform to facilitate information sharing, business-to-business (B2B) electronic markets allow buyers and sellers to conduct transactions in a digital environment with greater information transparency. Vertical information transparency about demand has been shown to be beneficial to supply chain management. Thus, information technology (EDI, B2B e-markets) is believed to offer great benefits. Yet, the literature generally assumes that either the downstream firm (retailer) or upstream firm (manufacturer) is a monopoly. Little is known whether this is still the case if both sides face competition. Built on the existing literature, this paper develops a simple two-level e-market model with upstream and downstream competition to study the effects of information transparency. We find that information transparency enabled by electronic markets can create value for the whole supply chain, yet it affects retailers and manufacturers very differently: one side will be hurt, depending on the competition mode (Cournot or Bertrand) in the downstream industry. Unfortunately, it never unanimously benefits the two sides; conflict of interest persists. Then, the theoretical benefits of information transparency recognized in the literature will not materialize. It illustrates a fundamental challenge with electronic markets and offers a possible explanation to the difficulty faced by many B2B e-markets. To deal with this issue, we propose a discriminatory pricing scheme for the e-market operator to internalize informational benefits among retailers and manufacturers so that the online market mechanism can be sustainable.
A survey of motion analysis from moving light displays (1994)

Motion-based recognition deals with the recognition of objects or motions directly from the motion information extracted from a sequence of images. There are two main steps in this approach. The first consists of finding an appropriate representation for the objects or motions, from the motion cues of the sequence, and then organize them into useful representations. The second step consists of the matching of some unknown input with a model. This paper provides a review of recent developments in motion-based recognition.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The nature of pregnanediol-like glucuronide (1950)

Research Article| June 01 1950 The nature of pregnanediol-like glucuronide B. W. L. Brooksbank; B. W. L. Brooksbank * 1Guy's Hospital Medical School, London, S.E. 1 Search for other works by this author on: This Site PubMed Google Scholar G. A. D. Haslewood G. A. D. Haslewood 1Guy's Hospital Medical School, London, S.E. 1 Search for other works by this author on: This Site PubMed Google Scholar Author and article information Publisher: Portland Press Ltd © 1950 CAMBRIDGE UNIVERSITY PRESS1950 Biochem J (1950) 47 (1): 36–43. https://doi.org/10.1042/bj0470036 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Peer Review Share Icon Share Facebook Twitter LinkedIn Email Cite Icon Cite Get Permissions Citation B. W. L. Brooksbank, G. A. D. Haslewood; The nature of pregnanediol-like glucuronide. Biochem J 1 June 1950; 47 (1): 36–43. doi: https://doi.org/10.1042/bj0470036 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsBiochemical Journal Search Advanced Search This content is only available as a PDF. © 1950 CAMBRIDGE UNIVERSITY PRESS1950 Article PDF first page preview Close Modal You do not currently have access to this content.
Chemical Reduction of Graphene Oxide to Graphene by Sulfur-Containing Compounds (2010)

Instead of hydrazine, a series of sulfur-containing compounds such as NaHSO3, Na2SO3, Na2S2O3, Na2S·9H2O, SOCl2, and SO2, were used as reducing agents to reduce graphene oxide to graphene. Fourier transform infrared spectrometry, atomic force microscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, elemental analysis, and thermogravimetric analysis confirmed the formation of graphene under chemical reduction at 95 °C. The results reveal that the reducing ability of NaHSO3 is comparable to that of hydrazine. This newly found reducing agent is of low toxicity and nonvolatile, which makes the reduction much safer than hydrazine. A possible mechanism of the reduction has been suggested. The electrical conductivity of the graphene paper prepared using a NaHSO3 reducing agent is found to be 6500 S m−1, while it is observed to be 5100 S m−1 for hydrazine-reduced graphene paper. These studies also confirmed that SOCl2 can be a good candidate as a reducing agent to compete with hydrazine.