gebhart/patrepeval huggingface dataset:
A general purpose nonlinear rigid body mass finite element for application to rotary wing dynamics (1991)

The Second Generation Comprehensive Helicopter Analysis System employs the present formulation of the general-purpose nonlinear rigid body mass finite element, which represents the hub masses, blade tip masses, and pendulum vibration absorbers. The rigid body mass element has six degrees of freedom, and accounts for gravitational as well as dynamic effects. A consequence of deriving the element's equations from various physical principles is that, prior to the transformation which couples the rigid body mass element to the rotor blade finite element, the forces obtained for each element are fundamentally different; this is true notwithstanding the degrees-of-freedom of each element are parameterized using the same coordinates.
Optical parametric oscillator frequency tuning and control: errata (1995)

Get PDF Email Share Share with Facebook Tweet This Post on reddit Share with LinkedIn Add to CiteULike Add to Mendeley Add to BibSonomy Get Citation Copy Citation Text Robert C. Eckardt, C. D. Nabors, William J. Kozlovsky, and Robert L. Byer, "Optical parametric oscillator frequency tuning and control: errata," J. Opt. Soc. Am. B 12, 2322-2322 (1995) Export Citation BibTex Endnote (RIS) HTML Plain Text Citation alert Save article
UPDATED TOOL PATH MODELLING WITH PERIODIC DELAY FOR CHATTER PREDICTION IN MILLING. (2005)

The efficiency of the high speed milling process is often limited by chatter. In order to predict the occurrence of chatter, accurate models are necessary. In most models regarding milling, the cutter is assumed to follow a circular tooth path. However, the real tool path is trochoidal in an ideal case, i.e. without vibrations of the tool. Therefore, models using a circular tool path lead to errors, especially when the cutting angle is close to 0 or pi radians. An updated model for the milling process is presented which features an updated model of the undeformed chip thickness and a time-periodic delay. Furthermore, the stability of the milling system, and hence the occurrence of chatter, is investigated using the traditional and the new model by means of the semi-discretization method. Especially for low immersion cuts, the stability lobes diagram (SLD) using the updated model shows significant differences compared to the SLD using the traditional model.
Sequential extraction partitioning of metals, sulfur, and phosphorus in bottom ash from a coal-fired power plant (2007)

Abstract A five-stage sequential extraction procedure was used to determine the partitioning of 16 metals (Cd, Cr, Cu, Mo, Pb, Zn, As, Co, V, Ni, Ba, Al, Be, Fe, Mn, and Ti), sulfur (S), and phosphorus (P) in bottom ash from a coal-fired power plant of Fortum Power and Heat Oy Inkoo Power Plant in southern Finland, into the following fractions: (1) water-soluble fraction (H2O), (2) exchangeable fraction (CH3COOH), (3) easily reduced fraction (NH2OH–HCl), (4) oxidizable fraction (H2O2 + CH3COONH4), and (5) residual fraction (HF + HNO3 + HCl). Although the metals were extractable in all fractions, the highest concentrations of most of the metals occurred in the residual fraction. Although, from the utilization point of view, the total element concentrations in the bottom ash were lower than the current Finnish limit values for fertilizers used in agriculture and in forestry, the partitioning study helps to evaluate the extractability efficiency of different elements. The knowledge of extractability of elements is important if inorganic materials and by-products, e.g. waste, are utilized. Keywords: AshBioavailabilityCoalExtractionLeaching Acknowledgements The authors wish to thank the technical staff of Suomen Ympäristöpalvelu Oy, and especially M.Sc. Ilkka Välimäki, under whose supervision all the chemical analyses were performed. Thanks also to Fortum Power and Heat Oy for providing the opportunity to carry out this study.
Real-Space Imaging of Carrier Dynamics of Materials Surfaces by Second-Generation Four-Dimensional Scanning Ultrafast Electron Microscopy (2015)

In the fields of photocatalysis and photovoltaics, ultrafast dynamical processes, including carrier trapping and recombination on material surfaces, are among the key factors that determine the overall energy conversion efficiency. A precise knowledge of these dynamical events on the nanometer (nm) and femtosecond (fs) scales was not accessible until recently. The only way to access such fundamental processes fully is to map the surface dynamics selectively in real space and time. In this study, we establish a second generation of four-dimensional scanning ultrafast electron microscopy (4D S-UEM) and demonstrate the ability to record time-resolved images (snapshots) of material surfaces with 650 fs and ∼5 nm temporal and spatial resolutions, respectively. In this method, the surface of a specimen is excited by a clocking optical pulse and imaged using a pulsed primary electron beam as a probe pulse, generating secondary electrons (SEs), which are emitted from the surface of the specimen in a manner that is sensitive to the local electron/hole density. This method provides direct and controllable information regarding surface dynamics. We clearly demonstrate how the surface morphology, grains, defects, and nanostructured features can significantly impact the overall dynamical processes on the surface of photoactive-materials. In addition, the ability to access two regimes of dynamical probing in a single experiment and the energy loss of SEs in semiconductor-nanoscale materials will also be discussed.
Energy Consumption Analysis of Converged Networks: Node Consolidation vs Metro Simplification (2013)

We present a comparison of network energy consumption for converged networks in the case of node-consolidation and metro-simplification. Results indicate an advantage for metro simplification by DWDM-centric transport.
The metal–insulator transition in Fe<sub>1.01−<i>x</i></sub>Cu<sub><i>x</i></sub>Se (2009)

Iron selenide, Fe(1.01)Se, the layered parent compound of the recently discovered superconducting arsenide family, has previously been shown to be non-magnetic and superconducting with a critical temperature of 8 K. Here we show that copper can be substituted at the iron site in Fe(1.01)Se up to a solubility limit of 20-30%, after which a first-order transition to the three-dimensional CuFeSe(2) structure type is observed. As little as 1.5% copper is sufficient to suppress the superconductivity, and 4% drives the system through a metal-insulator transition. A local magnetic moment is introduced, which maximizes near 12% doping, where a spin-glass transition near 15 K is observed.
1H-NMR of Rh(NH3)4phi3+ Bound to d(TGGCCA)2: Classical Intercalation by a Nonclassical Octahedral Metallointercalator (1994)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT1H-NMR of Rh(NH3)4phi3+ Bound to d(TGGCCA)2: Classical Intercalation by a Nonclassical Octahedral MetallointercalatorJ. Grant Collins, Thomas P. Shields, and Jacqueline K. BartonCite this: J. Am. Chem. Soc. 1994, 116, 22, 9840–9846Publication Date (Print):November 1, 1994Publication History Published online1 May 2002Published inissue 1 November 1994https://pubs.acs.org/doi/10.1021/ja00101a004https://doi.org/10.1021/ja00101a004research-articleACS PublicationsRequest reuse permissionsArticle Views297Altmetric-Citations81LEARN 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
<i>Pasadena:</i> Perceptually Aware and Stealthy Adversarial Denoise Attack (2021)

Image denoising can remove natural noise that widely exists in images captured by multimedia devices due to low-quality imaging sensors, unstable image transmission processes, or low light conditions. Recent works also find that image denoising benefits the high-level vision tasks, <i>e.g</i>., image classification. In this work, we try to challenge this common sense and explore a totally new problem, <i>i.e</i>., whether the image denoising can be given the capability of fooling the state-of-the-art deep neural networks (DNNs) while enhancing the image quality. To this end, we initiate the very first attempt to study this problem from the perspective of adversarial attack and propose the <i>adversarial denoise attack</i>. More specifically, our main contributions are three-fold: <i>First</i>, we identify a new task that stealthily embeds attacks inside the image denoising module widely deployed in multimedia devices as an image post-processing operation to simultaneously enhance the visual image quality and fool DNNs. <i>Second</i>, we formulate this new task as a kernel prediction problem for image filtering and propose the <i>adversarial-denoising kernel prediction</i> that can produce adversarial-noiseless kernels for effective denoising and adversarial attacking simultaneously. <i>Third</i>, we implement an adaptive <i>perceptual region localization</i> to identify semantic-related vulnerability regions with which the attack can be more effective while not doing too much harm to the denoising. We name the proposed method as <i>Pasadena</i> (Perceptually Aware and Stealthy Adversarial DENoise Attack) and validate our method on the NeurIPS&#x2019;17 adversarial competition dataset, CVPR2021-AIC-VI: unrestricted adversarial attacks on ImageNet, and Tiny-ImageNet-C dataset. The comprehensive evaluation and analysis demonstrate that our method not only realizes denoising but also achieves a significantly higher success rate and transferability over state-of-the-art attacks.
Hepatitis B antigens in serum and liver of chimpanzees acutely infected with hepatitis B virus (1975)

We report the temporal patterns of various immunohistological and serological parameters of acute self-limited hepatitis B virus infection of two chimpanzees, and we provide evidence that the synthesis of hepatitis B core antigen precedes that of hepatitis B surface antigen. Our data suggest that existence of a biphasic hepatitis B virus infection involving a hematogenous reinfection of the liver and indicate that recruitment of liver cells to produce hepatitis B virus may occur in a pattern consistent with a replicative cycle of about 8 days.
Measuring Speed Of Rotation With Two Brushless Resolvers (1995)

Speed of rotation of shaft measured by use of two brushless shaft-angle resolvers aligned so electrically and mechanically in phase with each other. Resolvers and associated circuits generate voltage proportional to speed of rotation (omega) in both magnitude and sign. Measurement principle exploits simple trigonometric identity.
Analysis of the polarimetric performance of the HARPS3 Cassegrain adaptor unit (2018)

The third version of the High Accuracy Radial velocity Planet Searcher (HARPS3) instrument is built for a ten-year programme aimed at achieving 10 cm/sec radial velocity precision on nearby stars to search for Earth-like planets. HARPS3 will be commissioned on the to-be-roboticized 2.54-m Isaac Newton Telescope at La Palma in 2021. One of the main changes compared to its predecessors is the novel dual-beam Cassegrain focus, featuring a stabilised beam feed into the HARPS3 spectrograph and an insertable polarimetric sub-unit. This polarimetric sub-unit enables HARPS3 to directly measure stellar activity signatures, which can be useful for correcting activity-induced radial velocity jitter in the search for Earth-like planets. The sub-unit consists of superachromatic polymer quarter- and half-wave retarders for circular and linear polarizations respectively, designed to suppress polarized fringing, and a novel polarimetric beam splitter based on a wire-grid design, separating the two polarimetric beams by 30 mm and feeding two separate science fibers. The dual-beam exchange implementation in combination with the extreme stability of the HARPS3 spectrograph enables a polarimetric sensitivity of 10<sup>−5</sup> on bright stars. One of the main challenges of such a system is in the characterization of instrumental polarization effects which limit the polarimetric accuracy of the polarimetric observing mode. By design and characterization of this subsystem and by pre-emptively mitigating possible noise sources, we can minimize the noise characteristics of the polarization sub-unit to allow for precise observations. In this paper we report on the design, realization, assembly, alignment, and testing of the polarimetric unit to be installed in the Cassegrain Adaptor Unit of the HARPS3 spectrograph
A Single-Chip 8-Band CMOS Transceiver for 3G Cellular Systems with Digital Interface (2010)

In this paper, a single-chip dual-mode 8-band 130nm CMOS transceiver including A/D/A converters and digital filters with 312MHz LVDS interface is presented. For a transmitter chain, linear direct quadrature modulation architecture is introduced for both W-CDMA/HSDPA (High Speed Uplink Packet Access) and for GSM/EDGE. Analog baseband LPFs and quadrature modulators are commonly used both for GSM and for EDGE. For a direct conversion receiver chain, ABB (Analog Base-Band) blocks, i.e., LPFs and VGAs, delta-sigma A/D converters, and FIR filters are commonly used for W-CDMA/HSDPA (High Speed Downlink Packet Access) and GSM/EDGE to reduce chip area. Their characteristics can be reconfigured by register-based control sequence. The receiver chain also includes high-speed DC offset cancellers both in analog and in digital stage, and the self-contained AGC controller, whose parameters such as time constant are programmable to be free from DBB (Digital Base-Band) control. The transceiver also includes wide-range VCOs and fractional PLLs, an LVDS driver and receiver for high-speed digital interface of 312MHz. Measured results reveal that the transceiver satisfies 3GPP specifications for W-CDMA/HSPA (High Speed Packet Access) and GSM/EDGE.
Free-Flow Electrophoresis of Plasma Membrane Vesicles Enriched by Two-Phase Partitioning Enhances the Quality of the Proteome from <i>Arabidopsis</i> Seedlings (2016)

The plant plasma membrane is the interface between the cell and its environment undertaking a range of important functions related to transport, signaling, cell wall biosynthesis, and secretion. Multiple proteomic studies have attempted to capture the diversity of proteins in the plasma membrane using biochemical fractionation techniques. In this study, two-phase partitioning was combined with free-flow electrophoresis to produce a population of highly purified plasma membrane vesicles that were subsequently characterized by tandem mass spectroscopy. This combined high-quality plasma membrane isolation technique produced a reproducible proteomic library of over 1000 proteins with an extended dynamic range including plasma membrane-associated proteins. The approach enabled the detection of a number of putative plasma membrane proteins not previously identified by other studies, including peripheral membrane proteins. Utilizing multiple data sources, we developed a PM-confidence score to provide a value indicating association to the plasma membrane. This study highlights over 700 proteins that, while seemingly abundant at the plasma membrane, are mostly unstudied. To validate this data set, we selected 14 candidates and transiently localized 13 to the plasma membrane using a fluorescent tag. Given the importance of the plasma membrane, this data set provides a valuable tool to further investigate important proteins. The mass spectrometry data are available via ProteomeXchange, identifier PXD001795.
Response of the GAGG(Ce) scintillator to charged particles compared with the CsI(Tl) scintillator (2021)

Response of the GAGG(Ce) scintillator to charged particles compared with the CsI(Tl) scintillator
Comparative Pathogenesis of Alkhumra Hemorrhagic Fever and Kyasanur Forest Disease Viruses in a Mouse Model (2014)

Kyasanur Forest disease virus (KFDV) and Alkhumra hemorrhagic fever virus (AHFV) are genetically closely-related, tick-borne flaviviruses that cause severe, often fatal disease in humans. Flaviviruses in the tick-borne encephalitis (TBE) complex typically cause neurological disease in humans whereas patients infected with KFDV and AHFV predominately present with hemorrhagic fever. A small animal model for KFDV and AHFV to study the pathogenesis and evaluate countermeasures has been lacking mostly due to the need of a high biocontainment laboratory to work with the viruses. To evaluate the utility of an existing mouse model for tick-borne flavivirus pathogenesis, we performed serial sacrifice studies in BALB/c mice infected with either KFDV strain P9605 or AHFV strain Zaki-1. Strikingly, infection with KFDV was completely lethal in mice, while AHFV caused no clinical signs of disease and no animals succumbed to infection. KFDV and high levels of pro-inflammatory cytokines were detected in the brain at later time points, but no virus was found in visceral organs; conversely, AHFV Zaki-1 and elevated levels of cytokines were found in the visceral organs at earlier time points, but were not detected in the brain. While infection with either virus caused a generalized leukopenia, only AHFV Zaki-1 induced hematologic abnormalities in infected animals. Our data suggest that KFDV P9605 may have lost its ability to cause hemorrhagic disease as the result of multiple passages in suckling mouse brains. However, likely by virtue of fewer mouse passages, AHFV Zaki-1 has retained the ability to replicate in visceral organs, cause hematologic abnormalities, and induce pro-inflammatory cytokines without causing overt disease. Given these striking differences, the use of inbred mice and the virus passage history need to be carefully considered in the interpretation of animal studies using these viruses.
ChemInform Abstract: Synthesis of Fluoroazaindolines by an Uncommon Radical ipso Substitution of a Carbon—Fluorine Bond. (2010)

Abstract Xanthates bearing various functionalities are added to the allyl group of pyridine (I).
Understanding p53 functions through p53 antibodies (2019)

TP53 is the most frequently mutated gene across all cancer types. Our understanding of its functions has evolved since its discovery four decades ago. Initially thought to be an oncogene, it was later realized to be a critical tumour suppressor. A significant amount of our knowledge about p53 functions have come from the use of antibodies against its various forms. The early anti-p53 antibodies contributed to the recognition of p53 accumulation as a common feature of cancer cells and to our understanding of p53 DNA-binding and transcription activities. They led to the concept that conformational changes can facilitate p53's activity as a growth inhibitory protein. The ensuing p53 conformational-specific antibodies further underlined p53's conformational flexibility, collectively forming the basis for current efforts to generate therapeutic molecules capable of altering the conformation of mutant p53. A subsequent barrage of antibodies against post-translational modifications on p53 has clarified p53's roles further, especially with respect to the mechanistic details and context-dependence of its activity. More recently, the generation of p53 mutation-specific antibodies have highlighted the possibility to go beyond the general framework of our comprehension of mutant p53-and promises to provide insights into the specific properties of individual p53 mutants. This review summarizes our current knowledge of p53 functions derived through the major classes of anti-p53 antibodies, which could be a paradigm for understanding other molecular events in health and disease.
Enhancement of Inertial Response of an Isolated Microgrid with High Inertia Induction Motors (2019)

A microgrid (MG) can effectively integrate various sources of distributed generation (DG), especially Renewable Energy Sources (RES). The rapid development of renewable power generation is causing the modern power grid to gravitate towards a converter-dominated system over a conventional generator dominated system. However, converter controlled type power plants in MGs does not possess substantial rotational inertia. Therefore, a MG is prone to higher frequency excursions which causes frequency instability. The proposed methodology elaborates a strategy to provide controlled inertia and vars from the consumers' end by means of an open winding induction motor (IM) having higher inertia. The capability of the concept has been demonstrated using a 3-phase fault and a sudden supply demand mismatch. PSCAD simulations have been used to demonstrate the capability of the system in a MG.
Patient skin dose assessment during CT-guided interventional procedures (2008)

The purpose of this study was to investigate patient skin doses in the most frequent computed tomography-guided interventional radiology procedures. The study includes 14 abdominal biopsies and 15 radiofrequency (RF) ablations. Patient skin dose was assessed by slow verification films. The technical factors recorded were: tube kilovoltage (kVp), tube load (mAs), slice thickness and the total number of slices (S). The median value of maximum entrance skin dose (ESD(M)) in biopsy was 108 mGy (9.5-282 mGy). S had a range of 4-152 with a median of 44 slices. Significant correlation was found between S and dose (r = 0.80). Median ESD(M) in RF ablation was 238 mGy (104-500 mGy). S had a range of 108-175 with a median of 155 slices. No significant correlation was found between S and dose. The large range of results show that a more extensive investigation should be performed. In summary, diagnostic procedures such as biopsy present patient skin doses that are relatively low. On the other hand, patient skin dose in RF ablation can be high and can reach values higher than the value that a slow verification film is capable of measuring (1.2 Gy). For these procedures, an alternative method should be investigated.
Optimal experimental design in an EGFR signaling and down-regulation model (2006)

We apply the methods of optimal experimental design to a differential equation model for epidermal growth factor receptor (EGFR) signaling, trafficking, and down-regulation. The model incorporates the role of a recently discovered protein complex made up of the E3 ubiquitin ligase, Cbl, the guanine exchange factor (GEF), Cool-1 (Beta-Pix), and the Rho family G protein Cdc42. The complex has been suggested to be important in disrupting receptor down-regulation. We demonstrate that the model interactions can accurately reproduce the experimental observations, that they can be used to make predictions with accompanying uncertainties, and that we can apply ideas of optimal experimental design to suggest new experiments that reduce the uncertainty on unmeasurable components of the system.