gebhart/patrepeval huggingface dataset:
Statistical properties of seismically derived AVO attributes (2001)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2001Statistical properties of seismically derived AVO attributesAuthors: Philippe HerrmannGuillaume CamboisPhilippe HerrmannCGG and Guillaume CamboisCGGhttps://doi.org/10.1190/1.1816578 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1816578FiguresReferencesRelatedDetailsCited byHigh-resolution prestack seismic inversion using a hybrid FISTA least-squares strategyDaniel O. Pérez, Danilo R. Velis, and Mauricio D. Sacchi2 September 2013 | GEOPHYSICS, Vol. 78, No. 5 SEG Technical Program Expanded Abstracts 2001ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2001 Pages: 2135 publication data© 2001 Copyright © 2001 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished Online: 03 Jan 2005 CITATION INFORMATION Philippe Herrmann and Guillaume Cambois, (2001), "Statistical properties of seismically derived AVO attributes," SEG Technical Program Expanded Abstracts : 231-234. https://doi.org/10.1190/1.1816578 Plain-Language Summary PDF DownloadLoading ...
Expedient Acylations of Primary and Secondary Alkyl Cyanides to α-Substituted β-Ketonitriles (2003)

Primary and secondary cyanides are efficiently acylated with N-acylbenzotriazoles 3a-f (derived from a variety of acids) to afford the corresponding alpha-substituted beta-ketonitriles 5a-r in 67-96% yields.
Communication, correlation and cheap-talk in games with public information (2012)

This paper studies extensive form games with public information where all players have the same information at each point in time. We prove that when there are at least three players, all communication equilibrium payoffs can be obtained by unmediated cheap-talk procedures. The result encompasses repeated games and stochastic games.
Influence of magnetic fields on the morphology and pseudocapacitive properties of NiO on nickel foam (2015)

Nanostructured nickel oxide (NiO) films have been successfully deposited on nickel foam by a simple magnetic-field-assisted hydrothermal method, followed by calcination in air.
In VivoEvaluation of Acute and Chronic Nanotoxicity (2014)

Nanotechnology is becoming increasingly important in a variety of fields ranging from medicine to textiles, and their concentration is building up gradually in our ecosystem. Consequently, the risk of being exposed to nanomaterials has significantly increased. Toxicity testing is essential to properly understand and manage the risks associated with exposure to nanomaterials, whether for the approval of a nanoconstructs' medical use or in the interests of public safety. Although in vitro methods of testing are advancing, they cannot yet replace the need for in vivo testing because of their limitations in modeling certain parameters of nanoparticles such as a biodistribution, metabolism, and organ specific toxicity. This chapter outlines the importance of nanomaterial composition and exposure route on the resulting toxicity. We also provide guidelines for appropriate tests to be utilized when examining in vivo nanotoxicity.
On the Outage of Underlay CR-NOMA Networks With Detect-and-Forward Relaying (2019)

Non-orthogonal multiple access (NOMA) is considered to be one of the promising multiple access (MA) techniques for 5G networks that can provide low latency, high system throughput, and massive connectivity. This paper studies an underlay cognitive radio (CR)-NOMA relaying network, where a secondary source communicates with M NOMA secondary destination users (SDUs) by a means of a detect-and-forward secondary relay under imperfect channel state information conditions. We derive generalized outage probability (OP) expressions in closed form for M NOMA-enabled SDUs. Moreover, we evaluate the OP of the CR-NOMA and conventional CR orthogonal MA schemes to show the superiority of the former. Finally, simulations are performed to corroborate the accuracy of the analytical results.
Evolution of sulfur gases during coal pyrolysis (1988)

The yields and rates of evolution of sulfur gases depend not only on pyrolysis conditions but also on the coal itself. The organic/inorganic forms of sulfur, as well as the secondary reactions of sulfur gases with solids and with other pyrolysis-generated gases, play an important role. Monitoring the time- and temperature-dependent evolution of sulfur-containing gases provides insight into the sulfur chemistry affecting evolution profiles. programmed-temperature studies of sulfur gas evolution often have been limited to H{sub 2}S. In some cases, all sulfur gases have been studied collectively by reducing or oxidizing them to H{sub 2}S or SO{sub 2}. Recently, Calkins studied the evolution of individual sulfur species from a Pyroprobe using Gas Chromatograph/Mass Spectrometer (GC/MS) and from isothermal flash pyrolysis. Boudou et al. also identified some individual sulfur gases from isothermal pyrolysis using a Curie-point reactor in combination with MS, GC, and GC/MS. In this study, the authors monitored the real-time evolution of sulfur gases during slow-heating pyrolysis via a triple quadrupole mass spectrometer (TQMS). They also monitored the evolution of hydrocarbon gases, water, and carbon oxides. They compared the evolution profiles of sulfur gases and related them to the rank of the coal, the organic and inorganic sources ofmore » sulfur in each coal sample, and the evolution of other pyrolysis-generated gases. The authors also studied the extend of secondary reactions by varying the pyrolysis conditions.« less
Perception and interpretation of high-pass filtered images (1992)

Digital high-pass filtering is used frequently to enhance details in scientific, industrial, and military images. High-pass filtered (HPF) images also are used both to illustrate and test models of visual perception. The visual system appears to interpret HPF images in the context of a multiplicative model of high-frequency reflectance and low-frequency illumination whenever possible. HPF images can be treated as a form of two-dimensional amplitude modulation signals. The low-frequency information, which is coded in the modulation envelope, disappears with the carrier if low-pass filtered. The envelope may be retrieved (demodulated) using one of many possible nonlinear operations followed by a low-pass filter. The compressive nonlinearity ofthe visual system is shown to suffice for demodulating such images. Simulations show that HPF images cannot be used to reject the hypothesis that illusions and grouping phenomena are due to low-frequency channels.
A Descriptive Analysis of Health-Related Infomercials: Implications for Health Education and Media Literacy (2003)

Abstract Media literacy education helps individuals become discriminating consumers of health information. Informed consumers are less likely to purchase useless health products if informed of misleading and deceptive advertising methods. The purpose of this study was to conduct a content analysis of health-related TV infomercials. An instrument specifically for health-related infomercials was developed and tested. The instrument assessed product category, health problems solved, production format, persuasive techniques, implied health benefits, implied social/emotional benefits, testimonial frequency, and product acquisition information presented in the program. Four trained observers analyzed the content of 31 health-related infomercials. Health infomercials were divided into five categories of products. Frequency of use for 21 different promotional techniques varied from 93 to 10%. Analysis demonstrated that particular types of products were far more likely to utilize selected persuasive tactics. Frequency distributions for implied physical and emotional/social benefits were calculated. Health-related infomercials utilize a consistent formula of promotional techniques. Veteran health educators will recognize these techniques from long-standing consumer health recommendations on how to spot health fraud. Implications for media literacy in health education are explored.
Study on Hydrophobicity Detection of Composite Insulators of Transmission Lines by Image Analysis (2019)

Hydrophobicity of the composite insulators is a parameter which is closely related to the insulation properties. In order to determine whether the insulator in the transmission line needs to be withdrawn, it is necessary to objectively and accurately determine the hydrophobicity grade of the composite insulator. The study on hydrophobicity detection of composite insulators of transmission lines by image analysis is proposed in this paper, by which the hydrophobicity of composite insulators can be measured timely. The grayscale, median filtering, and histogram equalization of the hydrophobic images are fulfilled sequentially, and the water drops (or water marks) region is segmented by binary large object analysis and four parameters related to water repellency are extracted. In addition, the improved support vector machine algorithm is adopted to calculate the hydrophobicity of composite insulators. The results show that seven typical hydrophobic levels of insulators can be recognized by the proposed hydrophobicity detection method whose accuracy is more than 91%.
Rotten Hazelnuts Prediction via Simulation Modeling—A Case Study on the Turkish Hazelnut Sector (2022)

The quality defects of hazelnut fruits comprise changes in morphology and taste, and their intensity mainly depends on seasonal environmental conditions. The strongest off-flavor of hazelnuts is known as rotten defect, whose candidate causal agents are a complex of fungal pathogens, with <i>Diaporthe</i> as the dominant genus. Timely indications on the expected incidence of rotten defect would be essential for buyers to identify areas where hazelnut quality will be superior, other than being useful for farmers to have the timely indications of the risk of pathogens infection. Here, we propose a rotten defect forecasting model, and we apply it in the seven main hazelnut producing municipalities in Turkey. We modulate plant susceptibility to fungal infection according to simulated hazelnut phenology, and we reproduce the key components of the <i>Diaporthe</i> spp. epidemiological cycle <i>via</i> a process-based simulation model. A model sensitivity analysis has been performed under contrasting weather conditions to select most relevant parameters for calibration, which relied on weekly phenological observations and the post-harvest analyses of rotten incidence in the period 2016-2019, conducted in 22 orchards. The rotten simulation model reproduced rotten incidence data in calibration and validation datasets with a mean absolute error below 1.8%. The dataset used for model validation (321 additional sampling locations) has been characterized by large variability of rotten incidence, in turn contributing to decrease the correlation between reference and simulated data (<i>R</i> <sup>2</sup> = 0.4 and 0.21 in West and East Black Sea region, respectively). This denotes the key effect of other environmental and agronomic factors on rotten incidence, which are not yet taken into account by the predictive workflow and will be considered in further improvements. When applied in spatially distributed simulations, the model differentiated the rotten incidence across municipalities, and reproduced the interannual variability of rotten incidence. Our results confirmed that the rotten defect is strictly dependent on precipitation amount and timing, and that plant susceptibility is crucial to trigger fungal infections. Future steps will envisage the application of the rotten simulation model to other hazelnut producing regions, before being operationally used for in-season forecasting activities.
Cost of illness of cutaneous squamous cell carcinoma (CSCC) (2020)

Objectives: The aim of this study was to estimate the total annual direct costs incurred by the National Health Service for the management and treatment of CSCC and advanced CSCC patients in Italy.&#x0D; Methods: An incidence-based cost of illness (COI) model was developed to estimate direct costs associated with the treatment and management of CSCC patients in Italy. The identified treatment pathway was validated with a team of clinical experts and was distinguished between resectable CSCC and locally advanced CSCC or metastatic CSCC. Treatments costs were obtained through the analysis of the National Hospital Discharge Database (HDD) for the years 2015-2018; monitoring and terminal care costs were obtained from national tariffs of outpatient care service and from the literature respectively.&#x0D; Results: Associating the estimated costs for each phase of the treatment pathway with the proportion of patients present in each phase, the COI model estimated an annual economic burden of about € 25.9 million for the management and treatment of patients with CSCC in Italy, € 2.7 million of which were associated to patients with advanced CSCC. The average cost per patient with advanced CSCC was higher compared to that of patient with resectable CSCC (€ 4,490 vs € 2,236 respectively).&#x0D; Conclusions: Our analysis showed that advanced CSCC patients are associated with a higher average cost than patients with resectable CSCC.
Engineering with Rubber (2012)

You have accessEngineering with RubberFeb 2012Engineering with RubberAlan N. GentAlan N. GentSearch for more papers by this authorhttps://doi.org/10.3139/9783446428713.fmSectionsAboutPDF ToolsAdd to FavoritesDownload CitationTrack CitationsCopy LTI LinkPDF ShareFacebookTwitterEmailLinkedIn next chapter FiguresReferencesRelatedDetails 2011 Pages: I-XVIIIPrint ISBN: 978-3-446-42764-8eISBN: 978-3-446-42871-3 Copyright & Permissions© 2012 Carl Hanser Verlag GmbH & Co. KGPDF downloadLoading ...
ChemInform Abstract: SYNTHESIS OF THE CIS‐DECAHYDROQUINOLINE RING SYSTEM VIA AN INOC REACTION OF A 1‐ACYLDIHYDROPYRIDINE (1985)

Abstract Das Pyndiniumsalz (I) reagiert mit der Grignard‐Verbindung (II) zu dem Derivat (IIIa), das über das Iodid (IIIb) zur Nitroverbindung (IIIc) und weiter mit Phenylisocyanat zum Nitriloxid (IV) führt.
Effect of reduced stereoscopic camera separation on ring placement with a surgical telerobot (2005)

A custom, stereoscopic video camera was built to study the impact of decreased camera separation on a stereoscopically viewed, visual-manual task resembling some aspects of surgery. The camera’s field of view was matched to that of a stereoscopic laparoscope by adjusting focal length and viewing distance so that the viewer could see equivalent image content at a plane orthogonal to their view. This plane contained the point at which the left and right viewing axes converged. This geometry only exactly matches the images from both the laparoscope and the stereo-camera at this point. This condition was considered a useful approximation for a match between the two image sources. Twelve naive subjects and one of the experimenters were first trained in a ring placement task using the stereo-laparoscope and subsequently switched to the stereo-camera. It was used with differing camera separations ranging from 100% of the laparoscope’s separation to a biocular view corresponding to no separation. The results suggest that camera separation may be reduced 20-35% without appreciably degrading user performance. Even a 50% reduction in separation shows stereoscopically supported performance much better than the biocular condition. The results suggest that existing laparoscopes which use 5 mm camera separation may well be significantly miniaturized without causing substantial performance degradation.
Microtectonic and magnetic study of a cover-basement interaction, example of the 'Dôme de Barrot' (S-E of France). (2010)

In the south-east of France, the two southernmost External Basement Massifs (EBM) of Argentera and Barrot located south of the sinistral-transpressive border of the Apulia indenter display respectively NW-SE and E-W structural trends. Both are interpreted as exhumed metamorphic unit bordered by a foreland sedimentary cover made of fold and thrust belts. In the 70-80’s the Barrot massif had attracted some international interests for paleomagnetic and structural geology studies in order to, (1) study the magnetic properties of Permian red-beds rocks; (2) explain the eastward increasing strain gradient by finite strain analysis; (3) attempt to interpret the original position of the Barrot and Argentera massifs from the directions of magnetization; (4) study the importance of the inheritance normal faults frame in the current major structures.
Elevation of Serum Protein-Bound Carbohydrates and Haptoglobin in Schizophrenia (1966)

Abstract The mean concentration of each of the serum protein-bound carbohydrates (hexose, hexosamine, fucose, and sialic acid) was significantly elevated in a group of 60 male schizophrenic patients. The total serum protein was elevated, ceruloplasmin was normal, and C-reactive protein was absent. Serum haptoglobin was significantly elevated. The distribution of haptoglobin types was normal. Haptoglobin concentration variation was significantly correlated with each of the carbohydrates and, to a lesser degree, with ceruloplasmin. In a group of 13 patients with normal erythrocyte sedimentation rate, the fibrinogen and haptoglobin concentrations were significantly elevated. There was no correlation between haptoglobin and fibrinogen concentrations in this group.
Observations of radio recombination lines in the millimeter-wave spectrum of Orion A (1985)

On a observe les raies H 42α, 40α, 39α, 52β, 57γ et 60γ en direction du nuage moleculaire d'Orion. Les valeurs deduites pour la temperature electronique, en supposant l'ETL, sont proches de 10000 K, superieures aux 8500 K deduits des etudes optiques. On attribue ce desaccord a un ecart signifiactif a l'ETL
Coalescence-induced jumping of micro-droplets on heterogeneous superhydrophobic surfaces (2017)

The phenomenon of droplets coalescence-induced self-propelled jumping on homogeneous and heterogeneous superhydrophobic surfaces was numerically modeled using the volume of fluid method coupled with a dynamic contact angle model. The heterogeneity of the surface was directly modeled as a series of micro-patterned pillars. To resolve the influence of air around a droplet and between the pillars, extensive simulations were performed for different droplet sizes on a textured surface. Parallel computations with the OpenMP algorithm were used to accelerate computation speed to meet the convergence criteria. The composition of the air-solid surface underneath the droplet facilitated capturing the transition from a no-slip/no-penetration to a partial-slip with penetration as the contact line at triple point started moving to the air pockets. The wettability effect from the nanoscopic roughness and the coating was included in the model by using the intrinsic contact angle obtained from a previously published study. As the coalescence started, the radial velocity of the coalescing liquid bridge was partially reverted to the upward direction due to the counter-action of the surface. However, we found that the velocity varied with the size of the droplets. A part of the droplet kinetic energy was dissipated as the merged droplet started penetrating into the cavities. This was due to a different area in contact between the liquid and solid and, consequently, a higher viscous dissipation rate in the system. We showed that the effect of surface roughness is strongly significant when the size of the micro-droplet is comparable with the size of the roughness features. In addition, the relevance of droplet size to surface roughness (critical relative roughness) was numerically quantified. We also found that regardless of the viscous cutoff radius, as the relative roughness approached the value of 44, the direct inclusion of surface topography was crucial in the modeling of the droplet-surface interaction. Finally, we validated our model against existing experimental data in the literature, verifying the effect of relative roughness on the jumping velocity of a merged droplet.
Contributions to OpenROAD from Abroad: Experiences and Learnings : Invited Paper (2020)

The OpenROAD project is an ambitious initiative seeking to develop an automated, open-source RTL-to-GDSII flow. To build its complex toolset, OpenROAD brings together a team of industry experts, veteran scholars, and enthusiastic students from different schools and different countries. This paper first presents our path to becoming OpenROAD contributors, highlighting the nature of the OpenROAD project, the recruitment process, and the necessary logistics. We then summarize the contributions of the Brazilian team to the OpenROAD project; these comprise the development of five tools and more than 10K lines of released code, along with authorship or co-authorship of two publications in the research literature. We also summarize our experiences from working in a large software project: (i) working environment and relationship with people from around the world; (ii) task management and short turnaround times; (iii) continuous integration and testing; etc. Finally, we highlight the challenges of “refurbishing” academic research codes for use in the design of production ICs.
ECG data compression using Hebbian neural networks (1996)

Principal component analysis has long been used for a variety of signal processing applications, including signal compression. Neural network implementations of principal component analysis provide a means for unsupervised feature discovery and dimension reduction. In this paper, we describe a method for the compression of ECG data using principal component analysis. Hebbian neural networks were used for principal components computation. A variety of examples of normal and pathological ECGs obtained from the MIT ECG database demonstrate that the proposed method can provide compression ratio up to 30 with PRD% less than 5%.
Quantitative Characterization of Partitioning in Selection of DNA Aptamers for Protein Targets by Capillary Electrophoresis (2021)

Partitioning of protein–DNA complexes from protein-unbound DNA is a key step in selection of DNA aptamers. Conceptually, the partitioning step is characterized by two parameters: transmittance for protein-bound DNA (binders) and transmittance for unbound DNA (nonbinders). Here we present the first study to reveal how these transmittances depend on experimental conditions; such studies are pivotal to the effective planning and control of selection. Our focus was capillary electrophoresis (CE) which is a partitioning approach of high efficiency. By combining a theoretical model and experimental data, we evaluated the dependence of transmittances of binders and nonbinders on the molecular weight of protein target in two modes of CE-based partitioning: nonequilibrium capillary electrophoresis of equilibrium mixtures (NECEEM) and ideal-filter capillary electrophoresis (IFCE). Our data suggest that as the molecular weight of the protein target decreases: (i) the transmittance for binders remains close to unity in NECEEM but decreases drastically in IFCE and (ii) the transmittance for nonbinders increases orders of magnitude in NECEEM but remains relatively stable at a very low level in IFCE. To determine the optimal CE conditions for a given size of protein target, a balance between transmittances of binders and nonbinder must be reached; such a balance would ensure the collection of binders of sufficient purity and quantity. We conclude that, as a rule of thumb, IFCE is preferable for large-size protein targets while NECEEM should be the method of choice for small-size protein targets