gebhart/patrepeval huggingface dataset:
POST MECHANICAL FAILURE FIRE DAMAGE CHARACTERIZATION OF GRAPHITE/EPOXY COMPOSITES (2021)

Fire damage involving mechanically failed composite aircraft structures can dramatically alter their exposed surface characteristics in ways that inhibit fire forensic analyses. In this work, the effects of fire exposure on mechanically failed Cytec T40- 800/Cycom® 5215 graphite/epoxy composites were examined. Coupon level vertical fire tests were performed on mechanically failed unnotched compression and in-plane shear graphite/epoxy specimens. The fire damage was characterized by visual inspection and scanning electron microscopy. The fire damage development in the specimens involved a concurrent and sequential interaction between multiple physical, chemical, and thermal processes. This damage included melt dripping, matrix decomposition, char, soot, matrix cracking, delamination, and residual thickness increases due to explosive outgassing. The composite thermal degradation due to heat conduction, combustion, and/or thermal deformation was significantly affected by the specimen layup, ply orientation relative to the heat source, and the fracture surface morphology. Plies burned with fibers oriented parallel to the flame axis conducted heat into the interior of the composite. This resulted in melt dripping, internal pockets of matrix decomposition, and surface char deposition that, in some cases, completely obscured pertinent aspects of fiber fracture surface morphology. In contrast, plies burned with fibers oriented perpendicular to the flame axis acted like a thermal protection layer that impeded (slowed) heat transfer to the specimen’s interior. Furthermore, the thermal damage development was influenced by the specimen layup and the total available free surface area created during mechanical failure. Specimens with more free surface area promoted better airflow and oxygen availability for combustion and sustained far more thermal degradation for given fire exposure. Key fractographic features in exposed fiber bundles were destroyed due to severe thermal oxidation and thinning. A thorough understanding of these coupon-level fire tests represents a critical first step in developing a coherent strategy for the Federal Aviation Authority post-crash forensic analysis of composite aircraft structures.
Linear–Nonlinear Interaction and Passive Intermodulation Distortion (2010)

This paper describes several consequences of a linear-nonlinear interaction that was recently found to be of importance in microwave circuits that produce passive intermodulation (PIM) distortion. This paper briefly discusses how this linear-nonlinear interaction operates in an example system. It then discusses how an understanding of the linear-nonlinear interaction allows us to distinguish between different types of nonlinearities from the power dependence of the third-order intermodulation distortion product. Next, an example uses a multiphysics simulator to demonstrate that electrothermal nonlinearities behave as expected from the linear-nonlinear interaction model. Lastly, it illustrates how simple nonlinear models characterized with one circuit can accurately predict distortion levels when the nonlinearity is placed within a very different circuit, showing that knowledge of the interaction gives the ability to accurately predict the behavior of PIM-producing components in a variety of circuits such as resonators, filters, and matching networks.
Superconducting, transition, and normal state photoresponse in YBCO observed at different temperatures (1991)

The photoresponse of YBCO films was measured with a novel technique between 7 K and 200 K. YBCO was exposed to variable-fluence (<or=3 mu J) 300-fs 665-nm 2-kHz laser pulses. Photoinduced impedance changes in the samples biased with a DC current exhibited a transient voltage signal. Typically the voltage signal had a sharp (<50-ps) rise followed by a more gradual decay. Below T/sub c/, the response did not exhibit a simple exponential relaxation time. Relaxation occurred by a serial combination of fast ( approximately 200-700 ps) and slow ( approximately 1-ns) decay time constants. At T/sub c/, the photoresponse was the highest, and the relaxation time constant was typically greater than 1 ns. Above T/sub c/, the relaxation voltage signal was smaller in amplitude and followed a simple exponential dependence. The relaxation time constant for YBCO films on MgO was greater than 2 ns and was about 1 ns for YBCO films on LaAlO/sub 3/. The results yield a signal well below T/sub c/ (a quantum response); in addition, the negative photoresponse signal corresponds to recombination in the superconducting state. With the Corbino sample geometry, the potential of positive response due to flux flow has been minimized. A response linear with current was observed. The response below 0.9 T/sub c/ is temperature independent. At and above T/sub c/, a thermal response due to absorption of the laser energy was observed.
Subwavelength Plasmonic Lasing from a Semiconductor Nanodisk with Silver Nanopan Cavity (2010)

We report the experimental demonstration of an optically pumped silver-nanopan plasmonic laser with a subwavelength mode volume of 0.56(lambda/2n)(3). The lasing mode is clearly identified as a whispering-gallery plasmonic mode confined at the bottom of the silver nanopan from measurements of the spectrum, mode image, and polarization state, as well as agreement with numerical simulations. In addition, the significant temperature-dependent lasing threshold of the plasmonic mode contrasts and distinguishes them from optical modes. Our demonstration and understanding of these subwavelength plasmonic lasers represent a significant step toward faster, smaller coherent light sources.
Correction to “Combining Electron-Neutral Building Blocks with Intramolecular ‘Conformational Locks’ Affords Stable, High-Mobility P- and N-Channel Polymer Semiconductors” (2013)

ADVERTISEMENT RETURN TO ISSUEPREVAddition/CorrectionORIGINAL ARTICLEThis notice is a correctionCorrection to "Combining Electron-Neutral Building Blocks with Intramolecular 'Conformational Locks' Affords Stable, High-Mobility P- and N-Channel Polymer Semiconductors"Hui Huang, Zhihua Chen, Rocio Ponce Ortiz, Christopher Newman, Hakan Usta, Sylvia Lou, Jangdae Youn, Yong-Young Noh, Kang-Jun Baeg, Lin X. Chen, Antonio Facchetti*, and Tobin J. Marks*Cite this: J. Am. Chem. Soc. 2013, 135, 10, 4160Publication Date (Web):March 4, 2013Publication History Published online4 March 2013Published inissue 13 March 2013https://pubs.acs.org/doi/10.1021/ja400834jhttps://doi.org/10.1021/ja400834jcorrectionACS PublicationsCopyright © 2013 American Chemical Society. This publication is available under these Terms of Use. Request reuse permissions This publication is free to access through this site. Learn MoreArticle Views1170Altmetric-Citations2LEARN 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 PDF (120 KB) Get e-Alertsclose Get e-Alerts
Networked Radar Systems for Cooperative Tracking of UAVs (2019)

To enable expanded and safer access for unmanned aerial vehicles in the National Airspace System, a reliable system to detect and track them needs to be established. This paper combines two radar systems into a single network to provide tracking of UAVs across a wide area. Each radar detects the UAV's path and those detections are combined into tracks using a recursive random sample consensus algorithm. Outdoor flight experiments show the ability of the system to track a UAV across two different radar fields of view.
Advanced Technology for Mapping Subsurface Water Conductivity (2002)

PreviousNext No AccessSymposium on the Application of Geophysics to Engineering and Environmental Problems 2002Advanced Technology for Mapping Subsurface Water ConductivityAuthors: John M. SvobodaBirsen CananJohn L. MorrisonGail L. HeathDouglas LaBrecqueJohn M. SvobodaIdaho National Engineering and Environmental Laboratory (INEEL), Idaho Falls, ID, Birsen CananWashington State University, Pullman, WA (assigned to the INEEL), John L. Morrisonformerly of the INEEL, Idaho Falls, ID, Gail L. HeathIdaho National Engineering and Environmental Laboratory (INEEL), Idaho Falls, ID, and Douglas LaBrecqueMulti‐Phase Technologies, Reno, NVhttps://doi.org/10.4133/1.2927090 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Abstract Introductory paragraph for this paper is available only in the PDF and GZipped PS filesPermalink: https://doi.org/10.4133/1.2927090FiguresReferencesRelatedDetailsCited ByMagnetometric resistivity: a new approach and its application to the detection of preferential flow paths in mine waste rock dumps6 July 2018 | Geophysical Journal International, Vol. 215, No. 1Emerging Technologies in Hydrogeophysics Symposium on the Application of Geophysics to Engineering and Environmental Problems 2002ISSN (online):1554-8015Copyright: 2002 Pages: publication data© 2002 Copyright © 2002 The Environmental and Engineering Geophysical SocietyPublisher:Environmental & Engineering Geophysical Society HistoryPublished: 30 Sep 2008 CITATION INFORMATION John M. Svoboda, Birsen Canan, John L. Morrison, Gail L. Heath, and Douglas LaBrecque, (2002), "Advanced Technology for Mapping Subsurface Water Conductivity," Symposium on the Application of Geophysics to Engineering and Environmental Problems Proceedings : ELE8-ELE8. https://doi.org/10.4133/1.2927090 Plain-Language Summary PDF DownloadLoading ...
Selinexor synergizes with dexamethasone to repress mTORC1 signaling and induce multiple myeloma cell death (2018)

Multiple myeloma (MM) is a plasma cell neoplasm that results in over 11,000 deaths in the United States annually. The backbone therapy for the treatment of MM patients almost always includes combinations with corticosteroids such as dexamethasone (DEX). We found that DEX in combination with selinexor, an inhibitor of exportin-1 (XPO1) activity, synergistically inhibits the mTOR pathway and subsequently promotes cell death in MM cells. Specifically, we show that selinexor induces the expression of the glucocorticoid receptor (GR) and when combined with dexamethasone increases GR transcriptional activity. Moreover, we found that key downstream targets of the mTOR pathway are deregulated by the combination and identified a mechanism in which GR enhances the expression of REDD1 in GR positive cells while suppressing mTOR activity and cell viability. While the single agent activity of selinexor in MM cells appears to be GR-independent, synergy with DEX depends on GR expression. These data suggest that patients with tumor cells that are GR positive will benefit substantially from the combination. The current findings are consistent with the beneficial therapeutic outcome in patients with MM when treated with the combination of selinexor and DEX. In addition, they provide a rationale for testing GR and REDD1 as predictive and prognostic markers of response, respectively, for patients treated with this beneficial combination.
The Role of Charge Selective Contacts in Perovskite Solar Cell Stability (2018)

Abstract Lead halide perovskite solar cells have rapidly achieved high efficiencies comparable to established commercial photovoltaic technologies. The main focus of the field is now shifting toward improving the device lifetime. Many efforts have been made to increase the stability of the perovskite compound and charge‐selective contacts. The electron and hole selective contacts are responsible for the transport of photogenerated charges out of the solar cell and are in intimate contact with the perovskite absorber. Besides the intrinsic stability of the selective contacts themselves, the interfaces at perovskite/selective contact and metal/selective contact play an important role in determining the overall operational lifetime of perovskite solar cells. This review discusses the impact of external factors, i.e., heat, UV‐light, oxygen, and moisture, and measured conditions, i.e., applied bias on the overall stability of perovskite solar cells (PSCs). The authors summarize and analyze the reported strategies, i.e., material engineering of selective contacts and interface engineering via the introduction of interlayers in the aim of enhancing the device stability of PSCs at elevated temperatures, high humidity, and UV irradiation. Finally, an outlook is provided with an emphasis on inorganic contacts that is believed to be the key to achieving highly stable PSCs.
Millimeter-Wave Beamformer Chips with Smart-Antennas for 5G: Toward Holistic RFSOI Technology Solutions including RF-ADCs (2019)

This paper presents RFIC MIMO modules integrating beamformer chips (including PAs, LNAs, T/R switches, power combiners/dividers and digital controls) and smart-antenna arrays including down-converters for 5G. Several solutions: 2×2 (16 antennas) and 4×4 (64 antennas) arrays of RFIC beamformer chips are designed, fabricated and experimentally characterized. Wireless 5G links with real-time high data rate video-streaming capabilities are demonstrated using integrated cameras. Field-Field correlation-based over-the-air near-field and far-field test solutions with and without down-conversion are proposed for MIMO/Massive-MIMO phased-array systems both in frequency and time domains. Cognitive BIST solutions are combined with co-array signal-processing. Perspectives for holistic RFSOI technology solutions, including RF-analog-to-digital converters (RF-ADCs) and adaptive body-biasing systems, are drawn in comparison with BiCMOS, GaAs and GaN based technologies.
341-LB: Chronic ER Calcium Depletion Resulting from Sarcoendoplasmic Reticulum Ca2+ Atpase 2b (SERCA2b) Deficiency Leads to Impaired Proinsulin Processing in the Pancreatic ß Cell (2019)

Reductions in pancreatic β cell endoplasmic reticulum (ER) Ca2+ levels are associated with the development of ER stress and impaired proinsulin processing in both type 1 and type 2 diabetes. The SERCA pump transports Ca2+ into the ER lumen in order to maintain a steep Ca2+ gradient between the ER and cytosol. SERCA2 activity and expression are reduced in diabetes, however, the relationship between SERCA2 and proinsulin processing remains incompletely understood. To this end, we developed mice with β cell specific deletion of SERCA2 (βS2KO mice) and S2KO INS1 cells. βS2KO mice exhibited glucose intolerance and reduced insulin secretion in response to glucose without evidence of impaired insulin sensitivity. Islets from βS2KO mice had significantly reduced ER Ca2+ levels and impaired glucose-induced Ca2+ oscillations, while serum proinsulin/insulin (PI/I) ratios and whole pancreas PI/I content were elevated. Immunoblot analysis of βS2KO islets and S2KO INS-1 cells revealed reduced total levels of the proinsulin processing enzymes, PC1/3, PC2 and CPE, and increased levels of proPC2. Restoration of SERCA2b via adenoviral transduction in S2KO INS1 cells was sufficient to restore PC1/3 and PC2 maturation and enzyme activity. Brefeldin A treatment in INS1 cells recapitulated the impairments in PC1/3 and PC2 maturation observed in S2KO INS1 cells, suggesting a disturbance in protein trafficking between the ER and Golgi. Trafficking assays were next performed using a vesicular stomatitis virus G (VSVG) protein construct and revealed a significantly slower rate of VSVG movement from the ER to the Golgi in S2KO INS1 cells. Taken together, these data indicate that loss of SERCA2 activity and impairments in ER Ca2+ lead to reduced proinsulin processing via altered protein trafficking through the β cell secretory pathway. Disclosure H. Iida: None. T. Kono: None. X. Tong: None. I. Lindberg: None. C. Evans-Molina: None.
Large-mode-area hybrid photonic crystal fiber amplifier at 1178  nm (2015)

Amplification of 1178 nm light is demonstrated in a large-mode-area single-mode ytterbium-doped hybrid photonic crystal fiber, relying on distributed spectral filtering of spontaneous emission at shorter wavelengths. An output power of 53 W is achieved with 29 dB suppression of parasitic lasing. Further power scaling is limited by parasitic lasing.
Ionic gel based carbon dioxide gas sensor (2013)

We propose a CO2 gas sensor based on an impedance change of ionic gel (IG) according to the CO2 gas concentration. The sensor consists of an IG film patterned on electrodes. The impedance of the IG changes when the IG absorbs CO2 gas. CO2 gas concentration can be detected by measuring the amount of impedance change. Our proposal sensor has a merit that power consumption is very low (<;1μW). It is because ionic liquid (IL) and IG have selective gas solubility and high impedance. The high impedance means that large current is not required for the measurement.
CFD-aided optimization of customer-specific tank systems using an innovative labyrinth deaerator (2020)

This paper introduces the comprehensive approach of ARGO-HYTOS in developing and optimizing hydraulic tanks. Starting with a detailed analysis of the application, the tank design was optimized and an innovative deaerator was developed. In a first step, various Computational Fluid Dynamics (CFD) -based analyzing methods are presented, which are used to support the optimization process of tank development with regard to complex flow conditions and unexpected influences. The main topic of this paper is the introduction of an innovative labyrinth deaerator, causing coalescence of air bubbles, slower subsequent flow conditions and finally a better deaeration. A further focus is on a customized deaeration test rig, which is used to validate improved components and tank designs on the one hand and to learn more about the complex deaeration effects on the other hand. With this comprehensive optimization approach and the innovative, compact and patented labyrinth deaerator, the size of the tank and the amount of oil can be reduced to a minimum, without impairing air separation, but on the contrary, even improving the air separation behavior.
Supplementary Tables S1-S7 from MDM2 and MDM4 Are Therapeutic Vulnerabilities in Malignant Rhabdoid Tumors (2023)

&lt;p&gt;S1: Sources, media, and other information on all cell lines. S2: p53 status annotations for all cell lines. S3: sgRNA sequences for TP53 inactivation. S4: Primers for TP53 allele screening and RT-qPCR. S5: Sources, catalog numbers, and dilutions of all antibodies. S6: RNA-seq data for p53 target genes. S7: GSEA from RNA-seq data.&lt;/p&gt;
Cross-layer design of coded multicast for wireless random access networks (2011)

Joint optimization of network coding and Aloha-based medium access control (MAC) for multi-hop wireless networks is considered. The multicast throughput is maximized subject to flow conservation and MAC achievable rate constraints to obtain the optimal transmission probabilities. The resultant optimization problem is inherently non-convex and hence difficult to solve even in a centralized manner. A successive convex approximation technique is employed to obtain a Karush-Kuhn-Tucker solution. A separable problem structure is obtained and the dual decomposition technique is adopted to develop a distributed solution. The algorithm is thus applicable to large networks, and amenable to online implementation. Numerical tests verify performance and complexity advantages of the proposed approach over existing designs.
On the possibility of the TSD measuring techniques application for PET films thermal endurance estimation (2003)

Experiments were conducted on samples of four types of PET (polyethylene terephthalate) film from two different manufacturers. The thermal aging of the PET films was shown to have a complex nature, expressed most markedly during the TSD measurements by changes of the space-charge peak maximum value. This behavior was found for all types of film. The peak change rate can be represented as a linear function of both the aging temperature and the expected time to withstand that thermal stress, estimated on the basis of the IEC 216 standard test. It is not possible at the present stage of study to estimate directly from the TSD measurements an equivalent to the temperature index, despite an existing correlation. Therefore, the method seems to be suitable for accelerated periodic monitoring of PET films whose thermal endurance characteristics are already known.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>
Creatinine-based definitions: from baseline creatinine to serum creatinine adjustment in intensive care (2016)

This article is one of ten reviews selected from the Annual Update in Intensive Care and Emergency medicine 2016. Other selected articles can be found online at http://www.biomedcentral.com/collections/annualupdate2016. Further information about the Annual Update in Intensive Care and Emergency Medicine is available from http://www.springer.com/series/8901.
Histological validation of cardiac magnetic resonance T1 mapping for detecting diffuse myocardial fibrosis in diabetic rabbits (2016)

Purpose To pathologically verify the correlation between native T 1 mapping, postcontrast T 1 mapping, and extracellular volume fraction (ECV) and myocardial diffuse fibrosis, as determined by collagen volume fraction (CVF). Materials and Methods Thirty New Zealand white rabbits were randomly divided into the control group ( n = 6), diabetes 3 months group ( n = 8), diabetes 6 months group ( n = 8), and diabetes 9 months group ( n = 8). All the rabbits underwent clinical 3.0T magnetic resonance (MR) examinations with pre‐ and postcontrast modified Look–Locker inversion recovery T 1 mapping. For the histological study, each rabbit was sacrificed after MR scanning, hematoxylin and eosin and Masson staining of the left ventricular myocardium were performed, and CVF was calculated. Pre‐ and postcontrast T 1 values and ECV were compared to CVF using Pearson's correlation coefficients. Results Two rabbits died in each diabetes group, thus each group included six rabbits. ECV calculated from pre‐ and postcontrast T 1 values showed a very strong correlation with CVF ( r = 0.876, P &lt; 0.001), whereas postcontrast T 1 values exhibited a moderate correlation with CVF ( r = –0.564, P = 0.004). In contrast, precontrast T 1 values showed no correlation with CVF ( r = 0.311, P = 0.139). Conclusion ECV has a very strong correlation with pathological CVF, and can be used to assess the degree of diffuse myocardial fibrosis better than the postcontrast T 1 value. Precontrast T 1 value has no significant correlation with diffuse myocardial fibrosis. J. Magn. Reson. Imaging 2016;44:1179–1185.