gebhart/patrepeval huggingface dataset:
Solid Expandables Repair Prolific Subsea Gas Producer (2007)

Abstract A working window of opportunity only presents itself from April to mid-September in the turbulent Atlantic waters off the northwest coast of Ireland. When this window opened in Spring 2006, Shell E & P Ireland Ltd began operations to evaluate newly acquired assets in the Corrib fielddry-gas subsea development. Prior to acquisition, five wells had been placed in suspension, pending construction of the necessary subsea and onshore infrastructure. Shell had previously determined that only three wells were viable candidates for completion during the current season and commenced operations when the S711 semi-submersible arrived on location in April. The clock started ticking on favorable weather and time quickly became a crucial constraint issue. The project hit a critical mark when a leak was discovered in the 9-5/8 in. production casing on one of the early wells entered. With time running out, Shell approached Enventure to engineer a practical solution that was required within a period of six weeks. Possible solutions for recovery were identified and analyzed before the project management team decided on using solid expandable technology. The solution for this well needed to deliver a production casing string that effectively sealed off the hole. To accomplish this requirement with expandable tubulars, Shell decided to use the Enventure system elastomers for the gas-tight integrity, which required qualification. In approximately six weeks, Enventure and Shell planned and implemented the appropriate tests, coordinated logistical maneuvers to expedite expansions to create the test specimen for qualification and successfully installed the actual system in the production well. This paper will discuss the process used to bring the project to fruition within a tight timeframe. Details will include issues considered, ramifications of possible options, challenges of the operating conditions and circumstances and content and results of the qualification program. This paper will also discuss the philosophical approach of generating a workflow to successfully achieve the stated goals in a short amount of time.
Hybrid diffractive-refractive lenses and achromats (1988)

Hybrid elements containing optical power with both diffractive (holographic) and refractive components are shown to be useful for obtaining arbitrary or, in special cases, achromatic dispersive characteristics. In one configuration a volume holographic element is coated on the surface of a crown glass lens, and by varying the power distributions among the refractive and holographic components while maintaining constant overall optical power the effective Abbe V numbers of the resultant hybrid element are shown to span all real numbers excepting a narrow interval around zero. In the achromat case (V number = infinity), both refractive and diffractive components are of the same sign resulting in much smaller glass curvatures than in all-refractive achromat doublets or apochromat triplets. The large separation between holographic partial dispersions and available glass partial dispersions is shown to lead to hybrid three-color achromats with greatly reduced glass curvatures. Applications are expected to include broadband achromatic objectives and chromatic aberration corrector plates in high performance optical systems. Such corrector plates may have any net power (including zero) while exhibiting effective V numbers that are positive or negative and that span a wide range, e.g., +/-1 or +/-1000. Further advantages include reducing the need for choosing high dispersion glasses, which may be costly and difficult to grind or polish. High diffraction efficiency and broad spectral bandwidths (in excess of 3000 A) are obtained in the holographic optical elements using single-element central-stop and cascaded element designs.
Parallel high-radix nonrestoring division (1993)

An algorithm for high-radix nonrestoring division is proposed which combines a cost-efficient quotient estimation technique with collapsing of the division into one operation each iteration. The quotient estimation technique is a direct combinatorial algorithm which allows a more generalized partial remainder than similar studies. In addition, the successor partial remainder is calculated directly from the previous partial remainder. The intermediate steps of calculating the next quotient estimate, multiplying it by the divisor, and then subtracting the result from the previous remainder are telescoped into one step. This is possible due to the use of simple direct combinatorial equations for the quotient estimate. Thus, one operation is used to generate the next remainder from the previous remainder. This operation is similar to a multiplication with a reduced carry propagate adder. This algorithm reduces the latency of each iteration to less than the delay of one multiplication. Thus, high-radix nonrestoring division is possible with a low latency and no need for an off-chip ROM to hold a quotient estimate.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Biological Effects of Cholesterol Oxides (1991)

Introduction and Historical Perspective (C. Bruce Taylor and Shi-Kaung Peng). The Oxidation of Cholesterol (Leland L. Smith). Methods of Analysis of Cholesterol Oxides (Peter S.W. Park and Paul B. Addis). Cholesterol Oxide Content of Foods (Paul B. Addis and Peter S.W. Park). Cholesterol Oxides in Plasma and Tissues (Robert J. Morin and Shi-Kaung Peng). Effects of Cholesterol Oxides on Cholesterol Metabolism (Robert J. Morin, Bing Hu and Shi-Kaung Peng). Effects of Cholesterol Oxides on Cell Membranes (Shi-Kaung Peng and Robert J. Morin). Cytotoxicity of Cholesterol Oxides (Shi-Kaung Peng, Alex Sevania and Robert J. Morin). Effects of Cholesterol Oxides on Atherogenesis (Shi-Kaung Peng, Bing Hu and Robert J. Morin). Cholesterol Oxidation and Cancer (Robert J. Morin, Bing Hu, Shi-Kaung Peng and Alex Sevania). Index. c. 224 pp., 31 tables, 58 illus., 7x10, due December 1991, ISBN 0-8493-6776-X. FEATURES:
Learning Affective Correspondence between Music and Image (2019)

We introduce the problem of learning affective correspondence between audio (music) and visual data (images). For this task, a music clip and an image are considered similar (having true correspondence) if they have similar emotion content. In order to estimate this crossmodal, emotion-centric similarity, we propose a deep neural network architecture that learns to project the data from the two modalities to a common representation space, and performs a binary classification task of predicting the affective correspondence (true or false). To facilitate the current study, we construct a large scale database containing more than 3, 500 music clips and 85, 000 images with three emotion classes (positive, neutral, negative). The proposed approach achieves 61.67% accuracy for the affective correspondence prediction task on this database, outperforming two relevant and competitive baselines. We also demonstrate that our network learns modality-specific representations of emotion (without explicitly being trained with emotion labels), which are useful for emotion recognition in individual modalities.
Improved rotor track and balance performance using an expert system (2011)

A major source of vibration in the helicopter is derived from the main rotor dynamics and imbalance. Excessive vibration can cause premature wear to the aircraft and rotating components. Additionally, vibration causes pilot fatigue that in itself can be a safety issue. While great improvements have been made in the rotor track and balance (RTB) techniques, it still requires a skilled maintainer. Systems such as the Goodrich IVHMU can give good solutions. However, it requires a high degree of user expertise in selecting which RTB control adjustments should be active for the current helicopter measured vibration. Selection of RTB control adjustments or solution strategies is based on the type of imbalance/vibrations that are being generated by the main rotor. A system which recognizes the current vibration state can be trained to use the best controls and solution strategy. Such an expert system would improve the quality of the RTB solution and in general reduce the overall workload of the maintainer. We present a framework for a Bayesian classifier expert system. The classifier is based on a multiple hypothesis testing and demonstrates the ability to deliver an improved RTB adjustment over a generalized solution strategy.
Enantioselective Addition of Trimethylsilyl Cyanide to Aldehydes Induced by a New Chiral Ti(IV) Complex (1998)

ADVERTISEMENT RETURN TO ISSUECommunicationNEXTEnantioselective Addition of Trimethylsilyl Cyanide to Aldehydes Induced by a New Chiral Ti(IV) ComplexChyuan-Der Hwang, Der-Ren Hwang, and Biing-Jiun UangView Author Information Department of Chemistry, National Tsing Hua University, Hsinchu, Taiwan 300, Republic of China Cite this: J. Org. Chem. 1998, 63, 20, 6762–6763Publication Date (Web):September 5, 1998Publication History Received1 June 1998Published online5 September 1998Published inissue 1 October 1998https://doi.org/10.1021/jo981033oCopyright © 1998 American Chemical SocietyRIGHTS & PERMISSIONSArticle Views618Altmetric-Citations58LEARN 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 Read OnlinePDF (60 KB) Get e-AlertscloseSupporting Info (1)»Supporting Information Supporting Information SUBJECTS:Aldehydes,Inorganic carbon compounds,Ligands,Stereoselectivity,Trimethylsilyls Get e-Alerts
Characterizing evolving frameworks: issues from Esmail et al. (2020) review (2020)

Abstract There are complex issues in understanding and categorizing implementation science theories, models, and frameworks. Systematic reviews of these models are important undertakings for synthesizing current knowledge. The issues involved are even more challenging when reviewing a large number of frameworks and when some of the frameworks have evolved significantly over time. This paper addresses how the RE-AIM (Reach, Effectiveness, Adoption, Implementation, and Maintenance) framework was described in the recent Esmail (2020) review and identifies four mischaracterizations. This is followed by a more general discussion of how advances or extensions of frameworks after an original source publication or influential review tend to be overlooked. We discuss why inadvertent mischaracterization of what a framework is and is not, and what it can and cannot be used for, can have deleterious consequences. Finally, we suggest initial ideas about what could be done to prevent or alleviate some of these problems by reviewers, framework developers, and scholars at large.
Hard Macrocellular Silica Si(HIPE) Foams Templating Micro/Macroporous Carbonaceous Monoliths: Applications as Lithium Ion Battery Negative Electrodes and Electrochemical Capacitors (2009)

Abstract By using Si(HIPEs) as hard, exotemplating matrices, interconnected macro‐/microporous carbon monolith‐type materials with a surface area of around 600 m 2 g −1 are synthesized and shaped. The carbonaceous foams exhibit a conductivity of 20 S cm −1 , addressed with excellent mechanical properties (Young's modulus of 0.2 GPa and toughness of 13 J g −1 , when the carbon core is optimized). The above‐mentioned specificities, combined with the fact that the external shape and size can be easily designed on demand, are of primary importance for applications. The functionality of these carbonaceous monoliths is tested as both an electrochemical capacitor and a lithium ion negative electrode. The electrochemical capacitors' voltage–current profiles exhibit a non‐ideal rectangular response, confirming the double‐layer behavior of the carbon studied, while the charge‐discharge current profile of the electric double‐layer capacitor is directly proportional to the scan where the current response during charge and discharge exhibits high reversibility. When acting as a lithium ion negative electrode, after initial irreversibility, a good cyclability is obtained, associated with a stable capacity of 200 mA h g −1 during the first 50 cycles at a reasonable current density (C/10).
Dynamic reduction of voltage margins by leveraging on-chip ECC in Itanium II processors (2013)

Lowering supply voltage is one of the most effective approaches for improving the energy efficiency of microprocessors. Unfortunately, technology limitations, such as process variability and circuit aging, are forcing microprocessor designers to add larger voltage guardbands to their chips. This makes supply voltage increasingly difficult to scale with technology. This paper presents a new mechanism for dynamically reducing voltage margins while maintaining the chip operating frequency constant. Unlike previous approaches that rely on special hardware to detect and recover from timing violations caused by low-voltage execution, our solution is firmware-based and does not require additional hardware. Instead, it relies on error correction mechanisms already built into modern processors. The system dynamically reduces voltage margins and uses correctable error reports raised by the hardware to identify the lowest, safe operating voltage. The solution adapts to core-to-core variability by tailoring supply voltage to each core's safe operating level. In addition, it exploits variability in workload vulnerability to low voltage execution. The system was prototyped on an HP Integrity Server that uses Intel's Itanium 9560 processors. Evaluation using SPECjbb2005 and SPEC CPU2000 workloads shows core power savings ranging from 18% to 23%, with minimal performance impact.
Preparation and efficacy of Newcastle disease virus DNA vaccine encapsulated in chitosan nanoparticles (2014)

Optimal preparation conditions of Newcastle disease virus (NDV) F gene deoxyribonucleic acid (DNA) vaccine encapsulated in chitosan nanoparticles (pFNDV-CS-NPs) were determined. The pFNDV-CS-NPs were prepared according to a complex coacervation method. The pFNDV-CS-NPs were produced with good morphology, high stability, a mean diameter of 199.5 nm, encapsulation efficiency of 98.37% ± 0.87%, loading capacity of 36.12% ± 0.19%, and a zeta potential of +12.11 mV. The in vitro release assay showed that the plasmid DNA was sustainably released from the pFNDV-CS-NPs, up to 82.9% ± 2.9% of the total amount. Cell transfection test indicated that the vaccine expressed the F gene in cells and maintained good bioactivity. Additionally, the safety of mucosal immunity delivery system of the pFNDV-CS-NPs was also tested in vitro by cell cytotoxicity and in vivo by safety test in chickens. In vivo immunization showed that better immune responses of specific pathogen-free chickens immunized with the pFNDV-CS-NPs were induced, and prolonged release of the plasmid DNA was achieved compared to the chickens immunized with the control plasmid. This study lays the foundation for the further development of mucosal vaccines and drugs encapsulated in chitosan nanoparticles.
Introduction (1994)

John Taylor was a London waterman who used a natural gift for verse to carve out a novel and highly successful role for himself in early Stuart England. For more than forty years, he produced a stream of satires, verse essays, travel writing, religious reflections, bawdy jest-books, and pieces of journalism. He provides a glimpse in the world of a 17th-century Englishman of humble background and status. Coming to London as a young migrant, he was apprenticed in a menial trade with few prospects. Instead of submitting to his lot, he achieved fame and lasting public affection by creating a new identity for himself as ‘the king's water-poet’, and devising an appropriate way of life to accompany it. He also provides a useful case-study in the debate over cultural change in early modern England.
Empirical Data Reference Behavior in Data Base Systems (1976)

During the past several years a considerable amount of effort has gone into the measurement, analysis, and modeling of program behavior. Most of the work either assumes the existence of a reference string, which is then used in various ways, or attempts to produce a model for the process by which such reference strings are generated. With very few exceptions the reference strings that have been measured characterize virtual memory utilization, reflecting the fact that the motivating force behind these research activities is the desire to understand the behavior of virtual memory paging systems.
Ion Elevators and Escalators in Multilevel Structures for Lossless Ion Manipulations (2017)

We describe two approaches based upon ion "elevator" and "escalator" components that allow moving ions to different levels in structures for lossless ion manipulations (SLIM). Guided by ion motion simulations, we designed elevator and escalator components based upon ion current measurements providing essentially lossless transmission in multilevel designs. The ion elevator design allowed ions to efficiently bridge a 4 mm gap between levels. The component was integrated in a SLIM and coupled to a QTOF mass spectrometer using an ion funnel interface to evaluate the m/z range transmitted as compared to transmission within a level (e.g., in a linear section). The analysis of singly charged ions of m/z 600-2700 produced similar mass spectra for both elevator and straight (linear motion) components. In the ion escalator design, traveling waves (TW) were utilized to transport ions efficiently between two SLIM levels. Ion current measurements and ion mobility (IM) spectrometry analysis illustrated that ions can be transported between TW-SLIM levels with no significant loss of either ions or IM resolution. These developments provide a path for the development of multilevel designs providing, e.g., much longer IM path lengths, more compact designs, and the implementation of much more complex SLIM devices in which, e.g., different levels may operate at different temperatures or with different gases.
Degradation of trichloroethylene by Pseudomonas cepacia G4 and the constitutive mutant strain G4 5223 PR1 in aquifer microcosms (1993)

Pseudomonas cepacia G4 degrades trichloroethylene (TCE) via a degradation pathway for aromatic compounds which is induced by substrates such as phenol and tryptophan. P. cepacia G4 5223 PR1 (PR1) is a Tn5 insertion mutant which constitutively expresses the toluene ortho-monooxygenase responsible for TCE degradation. In groundwater microcosms, phenol-induced strain G4 and noninduced strain PR1 degraded TCE (20 and 50 microM) to nondetectable levels (< 0.1 microM) within 24 h at densities of 10(8) cells per ml; at lower densities, degradation of TCE was not observed after 48 h. In aquifer sediment microcosms, TCE was reduced from 60 to < 0.1 microM within 24 h at 5 x 10(8) PR1 organisms per g (wet weight) of sediment and from 60 to 26 microM over a period of 10 weeks at 5 x 10(7) PR1 organisms per g. Viable G4 and PR1 cells decreased from approximately 10(7) to 10(4) per g over the 10-week period.
A block-based motion estimator capable of handling occlusions (2000)

We present a new block-based motion estimation strategy, which aims at correctly nding the veloc-ity of picture blocks, even for background blocks in occlusion areas. This tritemporal ME calculates the motion between two pictures, switching the ME reference plane dependent on an occlusion detector. We also introduce a retimer, which can transform, locally in the picture, motion vectors valid for one time instant to another time instant. The retimer uses a foreground/background detector, of which we describe three varieties. Occlusion is a problem that plagues all block based motion estimation methods, and hence we see a utility of our method for ap-plications like e.g. picture rate conversion, video compression, 3D matching or image sequence object extraction. An evaluation of the tritemporal estima-tor is included. 1
Kick Isolation While Drilling - First Field Test of an Innovative Risk Mitigation Technology (2019)

Abstract Uncertainty in predicting formation integrity as well as pressure regimes poses significant risks to drilling operations. Several technologies can predict downhole environments in terms of formation strength, kick detection etc., but no solution currently exists for kick isolation. This paper presents an innovative well control and risk mitigation technology that is deployed while drilling and the result of a field test offshore Italy. The new system is integrated in the bottom hole assembly (BHA), and in case of a kick can shut-in the annulus and the drillstring on demand to confine the influx at the well bottom below the sealing elements. A bypass port that establishes communication with the drillstring and annulus can be opened above the sealing elements to allow adjusting of the mud weight. Downhole pressure above and below the annular seal and inside the string can be monitored in real time. The system is deployed in combination with Wired Drill Pipe to ensure activation and bi-directional communication that is independent of any fluid flow. The system was run on top of the directional rotary steerable BHA while drilling an 8½-in. hole section. The field test was conducted after drilling more than 500 m of new formation and 90 hours in hole. Prior to the test, the system was pulled to surface for visual inspection. No irregularities were observed. The system was then run back in open hole, activated according to operating procedures and tested by applying pressure into the annulus. The well was monitored and no leakage was observed concluding a successful test. Finally, the bypass was opened, circulation was re-established, and the system was deactivated and then pulled out of hole. This paper describes the technology features and summarizes the first field test results of a new risk mitigation technology for well control situations. This document also shows how deploying new solutions can help E&P operators improve well control through a cost-effective solution and reduce operational risk in case of formation fluid influx into a wellbore.
3차원모델링(BIM)을 활용한 강재수문 설계에 관한 연구 (2015)

In the design of a dam, steel gates is an important facility closely linked with civil engineering Structures, Due to allocation design, 2D design has a variety of problems, Drawing a paradox, the interfacing a paradox according to figures error, a lack of understanding from complex floor plan. On computer virtual space, BIM(Building information modeling) create the three-dimensional information of facilities in construction as a whole during the lifecycle of planning, design, construction and maintenance, etc, to integrate all the parties using the three-dimensional model of each project stages and to collaboration by sharing the consistent information. In this paper, the guideline of Design based using of the systemic 3-D modeling information of the steel gates will be suggested.