gebhart/patrepeval huggingface dataset:
Using Crystallized Superabsorbent Copolymer for Plugging High-Permeability Channeling and Vugular Communication (2008)

Abstract As fluids are produced from a reservoir, zones of higher permeability and corresponding higher flow rates create channels for the preferential movement of fluids. This can result in diminished sweep efficiency when there is premature communication between an injector and a producer. Crystallized superabsorbent copolymer (CSC) is a water-swellable (but not water-soluble), 100% crystalline synthetic polymer. CSCs are resistant to degradation by CO2 and bacteria and have a temperature range of 70 to 275°F. In addition, rigless placements can be made on current injection tubulars. This eliminates the expense of using a workover unit (Griffen 2000). This paper addresses the uses of CSC in the Permian Basin for the treatment of vugular communication, lost circulation, and near-wellbore remediation problems.
Ultrafast nonequilibrium spin dynamics in a ferromagnetic thin film (2002)

Summary form only given. Fast processes associated with changes in the magnetic properties of ferromagnetic media are of both fundamental and applied interest. While there are extensive studies of hot electron relaxation in nonmagnetic metals using ultrafast laser techniques, direct microscopic information about the spin and magnetization dynamics is very scarce. As shown here, we obtain considerable additional insight to microscopic spin dynamics of a ferromagnetically ordered system by using an ultrafast magnetooptical technique. An initially spin-polarized photoexcited gas of electrons is set up in a ferromagnetic metal film by selective excitation with a circular SHG laser beam.
Registration of Digitized Aerial Photography with a Digital Map Data Base. (1982)

Abstract : This report investigates the feasibility of automatic registration of a digital aerial image with an existing map data bank. The geometry of an aerial image can be modelled mathematically by a central perspective. The theoretical part presents the background of this model and discusses various strategies to solve the problem of resection in space. We propose a method to automatically recognize areal features of the map in the image and to extract control points for the reconstruction of the imaging configuration. Recognition is done by three algorithms: by correlation, by thresholding and by adaption of a binary mask. Results give estimates for the distance of projected features from actual objects, dislocations caused by variation of the transformation parameters and include experiments performed with an actual aerial photograph. (Author)
Tables of Glycosidase Inhibitors with Nitrogen in the Sugar Ring and Their Inhibitory Activities: Section 3.1 (1998)

This appendix contains sections titled: 3.1 Six-Membered Rings, C5 3.1.1 arabino-, ribo-, xylo-Configurations 3.1.2 Azafagomines 3.1.3 Pyrimidines
Review—Thermal Safety Management in Li-Ion Batteries: Current Issues and Perspectives (2020)

Approaches for thermal management of lithium-ion (Li-ion) batteries do not always keep pace with advances in energy storage and power delivering capabilities. Root-cause analysis and empirical evidence indicate that thermal runaway (TR) in cells and cell-to-cell thermal propagation are due to adverse changes in physical and chemical characteristics internal to the cell. However, industry widely uses battery management systems (BMS) originally designed for aqueous-based batteries to manage Li-ion batteries. Even the “best” BMS that monitor both voltage and outside-surface temperature of each cell are not capable of preventing TR or TR propagation, because voltage and surface-mounted temperature sensors do not track fast-emerging adverse events inside a cell. Most BMS typically include a few thermistors mounted on select cells to monitor their surface temperature. Technology to track intra-cell changes that are TR precursors is becoming available. Simultaneously, the complex pathways resulting in cell-to-cell TR propagation are being successfully modelled and mapped. Innovative solutions to prevent TR and thermal propagation are being advanced. These include modern BMS for rapid monitoring the internal health of each individual cell and physical as well as chemical methods to reduce the deleterious effects of rapid cell-to-cell heat and material transport in case of TR.
Data from Route of Administration Modulates the Induction of Dendritic Cell Vaccine–Induced Antigen-Specific T Cells in Advanced Melanoma Patients (2023)

&lt;div&gt;Abstract&lt;p&gt;&lt;b&gt;Purpose:&lt;/b&gt; It is unknown whether the route of administration influences dendritic cell (DC)-based immunotherapy. We compared the effect of intradermal versus intranodal administration of a DC vaccine on induction of immunologic responses in melanoma patients and examined whether concomitant administration of interleukin (IL)-2 increases the efficacy of the DC vaccine.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Experimental Design:&lt;/b&gt; HLA-A2.1&lt;sup&gt;+&lt;/sup&gt; melanoma patients scheduled for regional lymph node dissection were vaccinated four times biweekly via intradermal or intranodal injection with 12 × 10&lt;sup&gt;6&lt;/sup&gt; to 17 × 10&lt;sup&gt;6&lt;/sup&gt; mature DCs loaded with tyrosinase and gp100 peptides together with keyhole limpet hemocyanin (KLH). Half of the patients also received low-dose IL-2 (9 MIU daily for 7 days starting 3 days after each vaccination). KLH-specific B- and T-cell responses were monitored in blood. gp100- and tyrosinase-specific T-cell responses were monitored in blood by tetramer analysis and in biopsies from delayed-type hypersensitivity (DTH) skin tests by tetramer and functional analyses with &lt;sup&gt;51&lt;/sup&gt;Cr release assays or IFNγ release, following coculture with peptide-pulsed T2 cells or gp100- or tyrosinase-expressing tumor cells.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Results:&lt;/b&gt; In 19 of 43 vaccinated patients, functional tumor antigen–specific T cells could be detected. Although significantly more DCs migrated to adjacent lymph nodes upon intranodal vaccination, this was also highly variable with a complete absence of migration in 7 of 24 intranodally vaccinated patients. Intradermal vaccinations proved superior in inducing functional tumor antigen–specific T cells. Coadministration of IL-2 did not further augment the antigen-specific T-cell response but did result in higher regulatory T-cell frequencies.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Conclusion:&lt;/b&gt; Intradermal vaccination resulted in superior antitumor T-cell induction when compared with intranodal vaccination. No advantage of additional IL-2 treatment could be shown. &lt;i&gt;Clin Cancer Res; 17(17); 5725–35. ©2011 AACR&lt;/i&gt;.&lt;/p&gt;&lt;/div&gt;
A Decision Tree Framework for Tracking CO2 Fronts in Carbonate Reservoirs from Deep Measurements Data (2022)

Abstract One of the main challenges in tracking CO2 fronts in carbonate reservoirs is the geological and petrophysical heterogeneity and complexity. This obstacle led to uncertainties in the decision-making and tracking processes. In current practices, empirical petrophysical formulas are utilized to model CO2 fronts in carbonate formations. These formulas has shown tremendous results and advancements in addressing such complexity and they are the stepping-stone to petrophysical modeling. However, the challenge is continuously augmented as the data grow. We present an innovative artificial intelligence framework to estimate CO2 fronts in carbonate reservoirs based on deep measurement data such as electromagnetics surveys and acoustic impedance, together with porosity profiles. The framework processes the deep data and then sets it as training data. Afterward, the framework uses a decision tree model, specifically a regression tree, to estimate the CO2 saturation front map based on the training data. The framework tests four types of regression trees in which each tree has a different minimum leaf size. The framework was tested on synthetic deep measurement data such as electromagnetic surveys, acoustic impedance, and porosity profiles. Expert processing was also included in the processing stage to remove illogical measurements in the training data. The proposed artificial intelligence framework is applied to the training data set. The decision tree framework produces four types of regression trees with different minimum leaf sizes. These different trees are classified as ultra-fine, fine, medium, and coarse. Overall, all regression trees showed a high resemblance to the original CO2 front. However, the tree with the smallest minimum leaf size, which is the ultra-fine tree, has the highest accuracy and certainty. As for the computational time, the coarse tree is considered to be the fastest. This framework represents an innovative approach to track CO2 fronts by combining deep measurement data such as electromagnetic surveys, acoustic impedance, and porosity profiles with an artificial intelligence framework. Also, the framework is aimed to improve inter-well saturation mapping for CO2 sequestration application. The approach is data-driven, and it takes into account the existing data-scarce petrophysical model challenges.
A 2-to-20 GHz Multi-Phase Clock Generator with Phase Interpolators Using Injection-Locked Oscillation Buffers for High-Speed IOs in 16nm FinFET (2019)

To support high-speed IOs, a 2-to-20 GHz cross-coupled inverter-based multi-phase PLL with phase interpolators using injection-locked oscillation buffers is presented. The proposed voltage-controlled oscillator (VCO) is made of two 4-stage ring oscillators (RO), where the introduction of feedback and cross-coupled resistances enable the VCO to run at higher speeds compared to a conventional 4-stage RO. Injection-locked oscillation buffering is proposed to restore swing and reduce duty-cycle error (DCE) for VCO output buffers and PIs. Fabricated in 16nm process, it runs 25% faster and consumes 20% less power than prior works, with less than 1.8% DCE at 20 GHz across PI code range.
Persistence and Sexual Transmission of Filoviruses (2018)

There is an increasing frequency of reports regarding the persistence of the Ebola virus (EBOV) in Ebola virus disease (EVD) survivors. During the 2014⁻2016 West African EVD epidemic, sporadic transmission events resulted in the initiation of new chains of human-to-human transmission. Multiple reports strongly suggest that these re-emergences were linked to persistent EBOV infections and included sexual transmission from EVD survivors. Asymptomatic infection and long-term viral persistence in EVD survivors could result in incidental introductions of the Ebola virus in new geographic regions and raise important national and local public health concerns. Alarmingly, although the persistence of filoviruses and their potential for sexual transmission have been documented since the emergence of such viruses in 1967, there is limited knowledge regarding the events that result in filovirus transmission to, and persistence within, the male reproductive tract. Asymptomatic infection and long-term viral persistence in male EVD survivors could lead to incidental transfer of EBOV to new geographic regions, thereby generating widespread outbreaks that constitute a significant threat to national and global public health. Here, we review filovirus testicular persistence and discuss the current state of knowledge regarding the rates of persistence in male survivors, and mechanisms underlying reproductive tract localization and sexual transmission.
Device Performance and Reliability of Fully Developed SOI Transistors and Low-Temperature Poly-Si TFTs (2007)

The device performance and reliability of the SOI TFTs and the LTPS-TFTs were compared. Changing channel material from single-crystal Si to ELA poly-Si reduces mobility by 75%, and changing gate oxide material from thermal oxide to CVD oxide enhances current degradation due to hot carrier stress by almost ten times. To improve performance, selectively enlarging laser crystallization (SELAX) process which realizes poly-Si films with large grain and smooth surface has been developed. The mobility of SELAX-TFTs is twice of conventional LTPS-TFTs. To fabricate high quality interfacial layer at the interface between the gate oxide layers and the channel layers, cyclic deposition with O2 plasma treatment (C-DOP) process has been also developed. The lifetime of hot carrier degradation was extended by tenth using the C-DOP process.
Integrated self-referenced frequency-comb laser based on a combination of fiber and waveguide technology (2005)

An optically integrated self-referenced frequency comb laser is demonstrated. The system consists of a passively-modelocked Er-fiber laser, a butt-coupled periodically poled lithium niobate (PPLN) waveguide phase-sensor and an electronic feedback loop for carrier-envelope-offset (CEO) phase stabilization. The fceo-beat-signal has a linewidth of 62 kHz and is detected with a S/N-ratio of 40 dB, with greatly reduced pulse energy requirements compared to bulk crystal phase-sensors. To our knowledge this is the first self-referenced frequency-comb system entirely based on guided-wave technology.
System co-design and data management for flash devices (2011)

Flash devices are emerging as a replacement for disks. How does this evolution impact the design of data management systems? While flash devices have been available for years, this question is still open. In this tutorial, we share two views on the development of data management systems for flash devices. The first view considers that flash devices introduce so much complexity that it is necessary to reconsider the strictly layered approach between storage system, operating system and data management system. The second view considers that data management systems should recognize the complexity of flash devices and leverage the characteristics of different classes of devices for different usage patterns. Throughout the tutorial, we will cover the data management stack: from the fundamentals of flash technology, through storage for database systems and the manipulation of flash-resident data, to query processing.
Ab initio investigations of the .beta.-silicon effect on alkyl and cyclopropyl carbenium ions and radicals (1989)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAb initio investigations of the .beta.-silicon effect on alkyl and cyclopropyl carbenium ions and radicalsMustafa R. Ibrahim and William L. JorgensenCite this: J. Am. Chem. Soc. 1989, 111, 3, 819–824Publication Date (Print):February 1, 1989Publication History Published online1 May 2002Published inissue 1 February 1989https://doi.org/10.1021/ja00185a005Request reuse permissionsArticle Views519Altmetric-Citations120LEARN 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 InReddit PDF (653 KB) Get e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information Get e-Alerts
ChemInform Abstract: SYNTH. VON PHENANTHRIDINONEN‐(6) AUS 3,4‐DISUBSTITUIERTEN CUMARINEN UND IHRE RK. MIT METHYLMAGNESIUMJODID ZU PHENANTHRIDINIUMJODIDEN (1973)

Abstract Die durch Pechmann‐Reaktion der Verbindungen (I) und (II) erhältlichen C marin‐Derivate (III) werden zu den Benzocumarinen (IV) dehydriert.
Cloning, Nucleotide Sequence, and Expression in Escherichia coli of Levansucrase Genes from the Plant Pathogens Pseudomonas syringae pv. glycinea and P. syringae pv. phaseolicola (1998)

Plant-pathogenic bacteria produce various extracellular polysaccharides (EPSs) which may function as virulence factors in diseases caused by these bacteria. The EPS levan is synthesized by the extracellular enzyme levansucrase in Pseudomonas syringae, Erwinia amylovora, and other bacterial species. The lsc genes encoding levansucrase from P. syringae pv. glycinea PG4180 and P. syringae pv. phaseolicola NCPPB 1321 were cloned, and their nucleotide sequences were determined. Heterologous expression of the lsc gene in Escherichia coli was found in four and two genomic library clones of strains PG4180 and NCPPB 1321, respectively. A 3. 0-kb PstI fragment common to all six clones conferred levan synthesis on E. coli when further subcloned. Nucleotide sequence analysis revealed a 1,248-bp open reading frame (ORF) derived from PG4180 and a 1,296-bp ORF derived from NCPPB 1321, which were both designated lsc. Both ORFs showed high homology to the E. amylovora and Zymomonas mobilis lsc genes at the nucleic acid and deduced amino acid sequence levels. Levansucrase was not secreted into the supernatant but was located in the periplasmic fraction of E. coli harboring the lsc gene. Expression of lsc was found to be dependent on the vector-based Plac promoter, indicating that the native promoter of lsc was not functional in E. coli. Insertion of an antibiotic resistance cassette in the lsc gene abolished levan synthesis in E. coli. A PCR screening with primers derived from lsc of P. syringae pv. glycinea PG4180 allowed the detection of this gene in a number of related bacteria.
Programmable Multimode Interference in a VIS-NIR Photonics Platform (2022)

We recently introduced an architecture for universal optics in a multimode waveguide. Here we implement its essential building blocks in piezoelectrically programmable photonic integrated circuits.
Effects of Epidural Steroids on Lumbar Dura Material Properties (1999)

Epidural steroid injections are commonly used in the treatment of low back pain and radiculopathy based on their antiinflammatory and analgesic benefits. However, steroids are known to affect collagen synthesis, material strength, and tissue healing. The purpose of this study was to assess the effects of serial epidural steroid injections on the material properties of the lumbar dura mater. Serial epidural steroid injections of saline or methylprednisolone at 2-week intervals were performed in three paired groups of canines; a separate noninjected group was used as controls. Postmortem, dural sample testing to failure and histologic analysis was performed. Mechanical failure testing revealed no clinically significant change in the transverse dorsal dura tensile strength between all saline-injected, steroid-injected, or noninjected controls. Histologic analysis demonstrated no overt disruption of collagen matrix organization; however, electron microscopy demonstrated a significant decrease in the number of intracytoplasmic mitochondria of dural fibroblasts in steroid-injected animals, suggesting a metabolic inhibitory effect within steroid-injected dura mater. In the clinical time frame of this study, serial epidural steroid injections appeared to produce no significant material or matrix changes in the lumbar dura.
EU‐12: A Small‐Pore, High‐Silica Zeolite Containing Sinusoidal Eight‐Ring Channels (2016)

Zeolite EU-12, the framework structure of which has remained unsolved during the past 30 years, is synthesized at a specific SiO2 /Al2 O3 ratio using choline as an organic structure-directing agent, with both Na(+) and Rb(+) ions present. Synchrotron powder X-ray diffraction and Rietveld analyses reveal that the EU-12 structure has a two-dimensional 8-ring channel system. Among the two distinct 8-ring (4.6×2.8 and 5.0×2.7 Å) channels along c axis, the smaller one interconnects with the sinusoidal 8-ring (4.8×3.3 Å) channel along a axis. The other large one is simply linked up with the sinusoidal channel by sharing 8-rings (4.8×2.6 Å) in the ac plane. The proton form of EU-12 was found to show a considerably higher ethene selectivity in the low-temperature dehydration of ethanol than H-mordenite, the best catalyst for this reaction.
Analysis of operational data to improve performance in service delivery systems (2012)

Enterprises and service providers are increasingly challenged with improving the quality of service delivery. Toward this end, service delivery organizations are collecting large volumes of operational data. However, it is often difficult to effectively extract insights from this data that can be used to guide decisions in the service delivery environment. In this paper we study an array of analysis methods that were performed against service delivery operational data and that can be used to provide managerial insight into a complex service delivery system. We demonstrate the applicability of our approaches in a large IT services delivery environment.
Active negative impedance loaded EBG structures for the realization of ultra-wideband Artificial Magnetic Conductors (2004)

A new design methodology is introduced for an ultra-wideband Artificial Magnetic Conductor (AMC) that is based on loading the elements of Electromagnetic Bandgap (EBG) structures with active devices. The types of active loads used for this application belong to the class of devices known as Negative Impedance Converters (NICs). NICs are active two-port networks for which the impedance looking into one port is the negation of the impedance connected to the other port scaled by the impedance conversion coefficient of the device. Several design examples will be presented that demonstrate the considerable enhancement in bandwidth that can be achieved, compared to conventional passive AMC surfaces, by using EBG structures actively loaded with NICs.
Cation-dependent changes in the binding specificity of the platelet receptor GPIIb/IIIa. (1990)

The presence of manganese (Mn2+) significantly increases the binding of the platelet surface receptor GPIIb/IIIa to two synthetic peptides Gly-Arg-Gly-Asp-Ser-Pro (GRGDSP) and Leu-Gly-Gly-Ala-Lys-Gln-Ala-Gly-Asp-Val (L10) that contain the recognition sequences RGD and KQAGDV, respectively. This results in an increase in the amount of GPIIb/IIIa adsorbed by GRGDSPK- and L10-Sepharose by 12-20-fold. Additionally, Mn2+ eliminates contaminating platelet vitronectin receptor, alpha v beta 3, which copurifies with GPIIb/IIIa on the peptide affinity columns in the absence of Mn2+. In contrast to this increased peptide binding of GPIIb/IIIa, Mn2+ reduces the binding of GPIIb/IIIa to its macromolecular RGD-containing ligands fibrinogen, fibronectin, and vitronectin. These results could mean that Mn2+ changes the structure of the binding site on GPIIb/IIIa such that it is now better suited to accommodate conformations available to the RGD sequence within short, linear synthetic peptides but not available to the RGD sequences within the natural ligands. To support this hypothesis we tested a conformationally restricted cyclic peptide, cyclic 2,10-GPenGHRGDLRCA, which in competition assays, preferentially inhibits the binding of GPIIb/IIIa to fibrinogen but does not inhibit well the binding of other RGD-dependent integrins, alpha v beta 3 and alpha 5 beta 1 to their respective ligands. In such assays, the presence of Mn2+ dramatically changed the binding specificity of GPIIb/IIIa by shifting the preference of the receptor away from the selective peptide, cyclic 2,10-GPen-GHRGDLRCA toward the nonselective GRGDSP peptide. This shift parallels the Mn2(+)-dependent change of the binding of GPIIb/IIIa to its natural protein ligands.