gebhart/patrepeval huggingface dataset:
Effects of electrostatic discharges on bearing grease electric properties (2015)

Bearing faults may significantly reduce the useful life of electric machines. With the advent of modern fast-switching frequency converters, electric currents induced by the high-frequency common-mode voltage of these converters have been recognized as additional, sometimes severe, contributors to bearing degradation. The degradation is understood to progress both by damaging bearing surfaces and by altering the chemical composition of lubrication greases, which can lead to ineffective lubrication and reduction in permissible mechanical bearing load. This paper studies the effect of grease degradation due to discharge currents on the grease electric properties of several greases typically used with electric drives.
Regulation of early T cell development by the engagement of TCR- beta complex expressed on fetal thymocytes from TCR- beta -transgenic scid mice. (1995)

Transgenic expression of the beta-chain of T cell antigen-receptor (TCR) is known to induce the generation of CD4+ CD8+ thymocytes in the immunodeficient scid mouse, in which thymocyte development is otherwise arrested at CD4- CD8- cells. It is not clear, however, whether or not the thymocyte development is controlled by ligand engagement of the TCR-beta complex on the cell surface. In the present study, we have examined how the engagement by Ab of the TCR-beta complex expressed on the TCR-beta-transgenic scid fetal thymocytes can regulate the generation of CD4+ CD8+ thymocytes. Organ cultures of CD4- CD8- day 14 fetal thymocytes from the TCR-beta-transgenic scid mice resulted in the generation of CD4- CD8+ and then CD4+ CD8+ cells. The initial step from CD40- CD8- cells to CD4- CD8+ cells was enhanced by the addition of anti-TCR-beta Ab, whereas the subsequent step from CD4- CD8+ cells to CD4+ CD8+ cells was markedly inhibited by anti-TCR-beta Ab. These results indicate that ligand engagement of the TCR-beta complex can positively and negatively regulate the early thymocyte development. Moreover, the finding that engagement of TCR-beta complex inhibits the generation of CD4+ CD8+ cells suggests that the induction of CD4+ CD8+ thymocytes by the TCR-beta transgene is not an immediate consequence of cell-surface engagement of the TCR-beta complex but requires liberation from the continued TCR-beta signaling.
Spatial organization versus total surface area as a predictor of protein hydrophobicity. The hydrophobicity of the concanavalin A binding site (1995)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSpatial organization versus total surface area as a predictor of protein hydrophobicity. The hydrophobicity of the concanavalin A binding siteBradley D. Isbister, Phaedria M. St. Hilaire, and Eric J. TooneCite this: J. Am. Chem. Soc. 1995, 117, 51, 12877–12878Publication Date (Print):December 1, 1995Publication History Published online1 May 2002Published inissue 1 December 1995https://pubs.acs.org/doi/10.1021/ja00156a033https://doi.org/10.1021/ja00156a033research-articleACS PublicationsRequest reuse permissionsArticle Views117Altmetric-Citations28LEARN 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
Machines for continuous renal replacement therapy (2009)

Abstract Chapter 29 discusses machines for CRRT, including Aquarius, BM 25, Diapact, Equa-Smart, 2008H, 2008K, Multimat B, HF400, Hygela plus, Performer, Prisma, Multifiltrate, and Prismaflex, as well as technical characteristics of common CRRT machines, high-volume hemofiltration, special treatments and plasma therapies, and future trends.
Terahertz Integrated Transmission Line Sensors Using a Bonded Epitaxial GaAs Layer on Silicon Substrates (2006)

We have developed a novel process of transmission line type terahertz (THz) devices for biological sensing. A low-temperature-grown (LT) GaAs layer side is bonded onto silicon substrates using Au-Sn solder, then the GaAs substrate is removed by selective wet etching. Photoconduetive switch elements for generating and detecting THz signals are fabricated on the transferred LT-GaAs layer. This process results in robust integrated devices against biological solutions. Sequential measurement of THz time domain spectroscopy is available for biological molecules such as DNA samples. We observe clear difference in delay time shifts according to change of quantity and the state of applied molecules.
Tandem-hopped OFDM communications in spectral gaps of FM noise radar (2017)

It was recently demonstrated that hopped spectral gaps can be incorporated into a physically realizable form of FM noise radar emission. Here it is shown using experimental loopback measurements how OFDM communications can be embedded into these spectral gaps and, by virtue of proper spectral shaping, realize a composite emission with low autocorrelation sidelobes. The impact of tandem hopping of the radar spectral gap and embedded communication signal is evaluated. An example of a spectrally shaped OFDM emission for use in a notional commensal radar setting is also presented.
Modeling of Buck Converter with 3D Air-Core Inductor (2020)

A high-efficiency and high-power density buck converter is presented in this work with in-package 3D air-core inductor (150 μm thick). To optimize the system efficiency at targeted power density, an analytical model for both the 3D inductor and power switches is developed. Compared to 3D EM simulation, the proposed inductor model has maximum modeling error of 12% and 25% for the inductance and resistance calculations respectively. With the proposed design methodology, an inductor Q factor up to 35 @ 300 MHz is achieved. 1/2-ratio buck converter can reach 90% efficiency @ 1-5W/mm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> based on three optimized inductor designs, with V <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">OUT</sub> ranging from 0.7 V to 0.9 V and based on 28 nm CMOS.
Measurement of long-range pseudorapidity correlations and azimuthal harmonics insNN=5.02 TeV proton-lead collisions with the ATLAS detector (2014)

Measurements of two-particle correlation functions and the first five azimuthal harmonics, v 1 to v 5 , are presented, using 28 nb -1 of p + Pb collisions at a nucleon-nucleon center-of-mass energy of s NN = 5.02 TeV measured with the ATLAS detector at the LHC. Significant long-range "ridgelike" correlations are observed for pairs with small relative azimuthal angle (| | < /3) and back-to-back pairs (| | > 2/3) over the transverse momentum range 0.4 < p T < 12 GeV and in different intervals of event activity. The event activity is defined by either the number of reconstructed tracks or the total transverse energy on the Pb-fragmentation side. The azimuthal structure of such long-range correlations is Fourier decomposed to obtain the harmonics v n as a function of p T and event activity. The extracted v n values for n = 2 to 5 decrease with n. The v 2 and v 3 values are found to be positive in the measured p T range. The v 1 is also measured as a function of p T and is observed to change sign around p T 1.5-2.0 GeV and then increase to about 0.1 for p T > 4 GeV. The v 2 (p T ), v 3 (p T ), and v 4 (p T ) are compared to the v n coefficients in Pb + Pb collisions at s NN = 2.76 TeV with similar event multiplicities. Reasonable agreement is observed after accounting for the difference in the average p T of particles produced in the two collision systems.
Trivalent Arsenic Inhibits the Functions of Chaperonin Complex (2010)

The exact molecular mechanisms by which the environmental pollutant arsenic works in biological systems are not completely understood. Using an unbiased chemogenomics approach in Saccharomyces cerevisiae, we found that mutants of the chaperonin complex TRiC and the functionally related prefoldin complex are all hypersensitive to arsenic compared to a wild-type strain. In contrast, mutants with impaired ribosome functions were highly arsenic resistant. These observations led us to hypothesize that arsenic might inhibit TRiC function, required for folding of actin, tubulin, and other proteins postsynthesis. Consistent with this hypothesis, we found that arsenic treatment distorted morphology of both actin and microtubule filaments. Moreover, arsenic impaired substrate folding by both bovine and archaeal TRiC complexes in vitro. These results together indicate that TRiC is a conserved target of arsenic inhibition in various biological systems.
Models of Polychlorinated Dibenzodioxins, Dibenzofurans, and Biphenyls Binding Affinity to the Aryl Hydrocarbon Receptor Developed Using 13C NMR Data (2001)

Quantitative spectroscopic data-activity relationship (QSDAR) models for polychlorinated dibenzofurans (PCDFs), dibenzodioxins (PCDDs), and biphenyls (PCBs) binding to the aryl hydrocarbon receptor (AhR) have been developed based on simulated (13)C nuclear magnetic resonance (NMR) data. All the models were based on multiple linear regression of comparative spectral analysis (CoSA) between compounds. A 1.0 ppm resolution CoSA model for 26 PCDF compounds based on chemical shifts in five bins had an explained variance (r(2)) of 0.93 and a leave-one-out (LOO) cross-validated variance (q(2)) of 0.90. A 2.0 ppm resolution CoSA model for 14 PCDD compounds based on chemical shifts in five bins had an r(2) of 0.91 and a q(2) of 0.81. The 1.0 ppm resolution CoSA model for 12 PCB compounds based on chemical shifts in five bins had an r(2) of 0.87 and a q(2) of 0.45. The models with more compounds had a better q(2) because there are more multiple chemical shift populated bins available on which to base the linear regression. A 1.0 ppm resolution CoSA model for all 52 compounds that was based on chemical shifts in 12 bins had an r(2) of 0.85 and q(2) of 0.71. A canonical variance analysis of the 1.0 ppm CoSA model for all 52 compounds when they were separated into 27 strong binding and 25 weak binding compounds was 98% correct. Conventional quantitative structure-activity relationship (QSAR) modeling suffer from errors introduced by the assumptions and approximations involved in calculated electrostatic potentials and the molecular alignment process. QSDAR modeling is not limited by such errors since electrostatic potential calculations and molecular alignment are not done. The QSDAR models provide a rapid, simple and valid way to model the PCDF, PCDD, and PCB binding activity in relation to the aryl hydrocarbon receptor (AhR).
Well defined polymer structures by ionic ring‐opening polymerization of cyclic monomers comprising the respective structure (1996)

Abstract Ring‐opening polymerization of cyclic monomers is the method of choice when tailor‐made polymers and copolymers with heteroatoms in the main chain are to be prepared. Triblock copolymers comprising a poly(ethylene oxide) block [poly(EO)] and two poly(2,2‐dimethyltrimethylene carbonate) blocks [poly(DTC)] were prepared using a telechelic poly(EO) as initiator for the DTC polymerization. These block copolymers dissolve suitable salts leading to solid polymeric electrolytes. The thermal properties and the ionic conductivity of these materials are presented. Block copolymers comprising a poly(tetrahydrofuran) block [poly(THF)] and a poly(trimethylene urethane) block [poly(TU)] were obtained by sequential cationic polymerization of THF and TU with methyl trifluoromethane‐sulfonate as initiator. Mechanistic and kinetic aspects of the TU polymerization are discussed. To achieve the synthesis of block copolymers with a poly(L‐lactide) block [poly(LLA)] and a poly(α‐amino acid) block [poly(AA)] amino‐terminated poly(LLA) was prepared which served as initiator for the polymerization of α‐amino acid N‐carboxyanhydrides.
Cost-Effective Methods to Nanopattern Thermally Stable Platforms on Kapton HN Flexible Films Using Inkjet Printing Technology to Produce Printable Nitrate Sensors, Mercury Aptasensors, Protein Sensors, and Organic Thin Film Transistors (2020)

Kapton HN films, adopted worldwide due to their superior thermal durability (up to 400 °C), allow the high temperature sintering of nanoparticle based metal inks. By carefully selecting inks and Kapton substrates, outstanding thermal stability and anti-delaminating features are obtained in both aqueous and organic solutions and were applied to four novel devices: a solid state ion selective nitrate sensor, an ssDNA based mercury aptasensor, a low cost protein sensor, and a long lasting organic thin film transistor (OTFT). Many experimental studies on parameter combinations were conducted during the development of the above devices. The results showed that the ion selective nitrate sensor displayed a linear sensitivity range with a limit of detection of 2 ppm. The mercury sensor exhibited a linear correlation between the RCT values and the increasing concentrations of mercury. The protein printed circuit board (PCB) sensor provided a much simpler method of protein detection. Finally, the OTFT demonstrated a stable performance with mobility values for the linear and saturation regimes, and the threshold voltage. These devices have shown their value and reveal possibilities that could be pursued.
Identification of ultrasonic echo source in 4140 steel bars used for an oil field tool (1997)

Ultrasonic reflections obtained in inspections of 4140 round steel bars being manufactured into oil field tools were not associated by the manufacturer with any easily identified anomaly within the material. One of the bars was selected for more detailed analysis. A detailed sectioning procedure was initiated in order to isolate the source of the reflections. Using both angle beam and longitudinal beam probes, reflections were confirmed in smaller pieces cut from the bar. An attempt to correlate the reflections with cracks in the material was unsuccessful. It became clear in the course of the investigation that the indications were originating within a region where the attenuation was higher than expected. After the presence of significant cracking in the material was eliminated, extensive metallurgical investigations showed that the region of the material which exhibited the high attenuation, and was the source of the reflections, also possessed a higher than expected density of nonmetallic inclusions in the form of manganese sulfide stringers. Comparisons with other regions in the bar showed the density of the inclusions to be higher in the region that was the source of the reflections. While the correlation of the reflections and the inclusions is only circumstantial, the associationmore » is felt to be quite strong.« less
STERILIZATION EFFECTS ON POLYPROPYLENE: TECHNOLOGY AND POLYMER TYPE EFFECTS (2003)

Polypropylene, one of the most widely used plastics for packaging applications, is increasingly applied also in the medical area and for pharmaceutical packaging, where the material is mostly sterilized. To gain an overview of sterilizsation effects various polypropylene grades different in structure and additivation were investigated in two forms – cast film and injection molded – and with five different sterilization techniques. Attention was payed to radiation-induced degradation and thermally stimulated post-crystallization, which continue for a long time after the actual sterilization event. Special copolymers can be an interesting solution to embrittlement problems occurring with standard grades, but also special stabilization systems can be used.
Magnetic Resonance Imaging in Developmental Biology (2007)

Magnetic resonance imaging (MRI) has two major strengths for in vivo imaging of developing embryos: the modality is noninvasive and nondestructive. MRI does use ionizing radiation, and the bioeffects are well understood and can be reduced to negligible levels for most MRI studies. MRI has been applied to developmental biology questions in several key model systems, including chicken, quail, rat, mouse, and frog embryos. Avian and amphibian embryos are popular subjects for MR microscopy studies, since they develop externally and can be incubated within the MR imager with careful preparation and experimental design. While three-dimensional imaging provides important information about the spatial arrangement of structures within the embryo, it often requires extensive data collection times. The cleft of Brachet is a well-defined landmark in the embryo, marking the boundary between the interior endo-mesodermal cells and exterior ectodermal cells and serving as a useful morphological landmark in defining the germ layer identity of the cells within labeled clones.
Addition of MRI for CT-based pancreatic tumor delineation: a feasibility study (2017)

The availability of MRI images during target delineation of pancreatic cancer on 3DCT and 4DCT resulted in smaller target volumes and reduced the interobserver variation in six out of eight delineated structures.
GASTRIC EROSION IN HORSES AFFECTED WITH JAPANESE ENCEPHALITIS (1959)

The senior author and coworker have, in a previous repore \\ already described briefly how they had often encountered noteworthy lesion in pars oesophagea in stomach during the course of investigation on Japanese encephalitis in horses at Department of Veterinary Pathology of Hokkaido University. As this lesion is
Diamond turning of mirrors and infrared optical components (1988)

The authors describe an experimental study of single-point diamond-machining techniques with a view to producing a low-cost production machine for the manufacture of infrared optical components such as aluminium mirrors, germanium lenses and zinc sulphide domes. These components may be machined to a high form accuracy and surface finish such that they require no subsequent polishing. Of the three possible machine configurations, X-Y, R- theta and spherical generation, the last two are considered the most efficient and cost effective for the present requirement. They have been extended to produce aspheric components with departures up to +or-2 mm from a best-fit sphere.
ChemInform Abstract: Palladium‐Catalyzed Carbonylation of Aryl Iodides with Sulfinamides. (2016)

Abstract A procedure for the Pd‐catalyzed coupling of sufinamides with aryl iodides and carbon monoxide is presented to give acyl‐sulfinamides.
Molecular species containing persistent voids. Template synthesis and characterization of a series of lacunar-nickel(II) complexes and the corresponding free ligands (1981)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular species containing persistent voids. Template synthesis and characterization of a series of lacunar-nickel(II) complexes and the corresponding free ligandsDaryle H. Busch, Dennis J. Olszanski, James C. Stevens, Wayne P. Schammel, Masaaki Kojima, Norman Herron, L. Lawrence Zimmer, Katherine A. Holter, and Jan MocakCite this: J. Am. Chem. Soc. 1981, 103, 6, 1472–1478Publication Date (Print):March 1, 1981Publication History Published online1 May 2002Published inissue 1 March 1981https://pubs.acs.org/doi/10.1021/ja00396a030https://doi.org/10.1021/ja00396a030research-articleACS PublicationsRequest reuse permissionsArticle Views196Altmetric-Citations23LEARN 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
Suppression of local and systemic responses in streptococcal cell wall-induced acute inflammation of the air pouch by cyclosporine A. Comparison with the effects of two anti-inflammatory bis-benzimidazoles. (1993)

Injection of streptococcus group A cell wall-derived peptidoglycan polysaccharide into a subcutaneous air pouch causes local outpouring of neutrophils and macrophages and distant hemopoietic proliferation in spleen and bone marrow. Cyclosporine A (CyA) suppressed neutrophil accumulation and all cell lines of hemopoiesis. trans-1,2-Bis(5-amidino-2-benzimidazolyl)ethene (BBE) also interfered with neutrophil exudation, yet reduced only the erythroid component of the hemopoietic process. The ethane analogue of BBE, on the other hand, did not prevent neutrophil emigration, but held down splenic erythropoiesis and myelopoiesis. All three compounds stimulated streptococcus group A cell wall-derived peptidoglycan polysaccharide uptake by pouch macrophages. CyA being the least active, BBE and its ethane analogue also produced a shift of wear-and-tear pigment from large numbers of small splenic macro-phages into small numbers of large macrophages. The pouch model is very useful in the study of anti-inflammatory compounds and has furnished the first evidence of CyA interference with massive neutrophilic infiltration and with hemopoietic signals.
Transcription and Promoter Usage of the myc Gene tn Normal Somatic and Spermatogenic Cells (1984)

In somatic cells the level of myc transcription is not restricted to particular cell types but correlates closely with the rate of cell division. Such transcription involves the use of two active myc promoters and produces two messenger RNA species that are differentially represented among the transcripts of different tissues. In apparent contrast to somatic cells, mitotically and meiotically dividing germ cells have very few myc transcripts and appear to proliferate, at least for a few divisions, in the absence of myc transcription. These results raise interesting questions regarding the role of the myc gene product in terminally differentiating cells, particularly of the germ line series.
Solar Cells: Understanding Charge Transport in Molecular Blend Films in Terms of Structural Order and Connectivity of Conductive Pathways (Adv. Energy Mater. 9/2016) (2016)

In article number 1502285, the factors limiting charge carrier mobility in solution processed small molecule solar cells are investigated by Thuc-Quyen Nguyen and co-workers. It is found that order in the π–π stacking direction is correlated with the activation energy for transport, while the connectivity of conducting domains is the primary limitation to hole transport in some systems.