gebhart/patrepeval huggingface dataset:
Visualization of Heavy Oil Mobilization by Associative Polymer (2018)

Abstract Polymer flooding has increasingly been considered for heavy oil recovery applications. This has been encouraged by positive results from field applications at e.g. Pelican Lake and Tamaredjo and lab experiments showing that highly efficient recovery can be obtained at mobility ratios far from unity. Improved understanding of the mobilization process will increase process efficiency. Here we have used x-ray visualization to study sweep efficiency by an associative polymer at adverse mobility ratio in 2D flow. The x-ray scanner provides visual information on the development of fingers and saturation changes during the flooding process. Sweep efficiency was evaluated in two dimensional flow using a 30x30x2 cm slab of Bentheimer outcrop sandstone. A 540 cP crude oil was first displaced by water, then by 1000 ppm of a PAM-based associative polymer in a low salinity brine. Associative polymers have a potential for intermediate heavy oil/heavy oil applications due to favorable salt and shear tolerance, thermo-thickening properties and high resistance factors (RF) obtained in porous media due to hydrophobic interactions. Oil displacement by water at adverse mobility ratio is characterized by frontal instability and fingering of the water phase through the oil phase, leading to early water breakthrough and poor sweep efficiency. The details of this process is not revealed in typical core floods as pressure and production data can be fitted to a multitude of recovery scenarios for an unstable displacement. The x-ray visualization showed that the water flood was highly unstable with numerous thin fingers forming. As expected, an early water breakthrough was observed at about 0.07 PV injected. After water breakthrough additional oil recovery was primarily inefficient sweep between existing fingers. Polymer injection initiated at a stable, high water cut (97 - 98 %) was highly efficient, recovering 21 % OOIP over 0.7 PV injected. Production data showed a strong reduction in water cut suggesting formation of an oil bank. Saturation images confirmed this, and additionally revealed that the oil bank was formed by a combined polymer sweep between fingers and by expansion of established fingers in the first 2/3 of the slab, leading to accumulation toward the production well. However, the polymer flood was unstable, with no clear polymer bank formed in contrast to typical 2D polymer floods at lower mobility ratio. This is to our knowledge the first 2D flow experiment of oil mobilization by associative polymers. It shows that the polymer is highly efficient in accelerating the production in a tertiary flood where water is inefficiently flowing predominantly in an established water finger pattern. Combining visualization of 2D flow with pressure and production data leads to better insight into the mechanism of oil mobilization by associating polymer.
Recovery of Chromium(VI) from Electroplating Rinse Water: The Development of a Hollow Fibre Solvent Extraction Process (2003)

This chapter contains sections titled: Introduction Experimental Results and Discussion Conclusions Acknowledgements
Recent advances in development of commercial rose by molecular breeding (2010)

This report describes recent advances in tissue culture, genetic transformation of commercial rose (Rosa hybrida) and in development of new rose cultivars by molecular breeding. Rose is one of major cut-flowers in global horticulture industry. Successful progresses were made in development of new cultivars for pathogen resistant, environmental stress resistant and petal color modification by molecular breeding. New cultivars, however, has not reported yet in korea, although lots of progresses were achieved in each field of conventional breeding, tissue culture and genetic transformation. Cooperation in these research fields will promote screening of useful genes to have specific traits on rose and exploiting of processes to improve in the efficiency of tissue culture and genetic transformation of rose, therefore, we hopefully expect that new rose cultivars by molecular breeding will be released in the near future.
Pattern recognition using reduced information content filters (1987)

Pattern recognition by optical spatial filtering procedures is discussed using general considerations with the objective of reducing the information content in the spatial filter. The achievement of this objective is very useful toward the wide application of spatial light modulators and also for facilitating distortion invariant recognition. The proposed novel approach is demonstrated by an example employing bipolar spatial filters for rotation invariant pattern recognition.
Supplementary Methods and Results from High-Intensity Focused Ultrasound (HIFU) Triggers Immune Sensitization of Refractory Murine Neuroblastoma to Checkpoint Inhibitor Therapy (2023)

&lt;p&gt;This file includes supplementary methods and results.&lt;/p&gt;
Metabolism of the viable mammalian embryo: quietness revisited (2008)

This review examines the 'Quiet Embryo Hypothesis' which proposes that viable preimplantation embryos operate at metabolite or nutrient turnover rates distributed within lower ranges than those of their less viable counterparts. The 'quieter' metabolism consistent with this hypothesis is considered in terms of (i) 'functional' quietness; the contrasting levels of intrinsic metabolic activity in different cell types as a consequence of their specialized functions, (ii) inter-individual embryo/cell differences in metabolism and (iii) loss of quietness in response to environmental stress. Data are reviewed which indicate that gametes and early embryos function in vivo at a lower temperature than core body temperature, which could encourage the expression of a quiet metabolism. We call for research to determine the optimum temperature for mammalian gamete/embryo culture. The review concludes by examining the key role of reactive oxygen species, which can induce molecular damage, trigger a cellular stress response and lead to a loss of quietness.
Deuterated Arachidonic Acids Library for Regulation of Inflammation and Controlled Synthesis of Eicosanoids: An In Vitro Study (2018)

The synthesis of signal lipids, including eicosanoids, is not fully understood, although it is key to the modulation of various inflammatory states. Recently, isotopologues of essential polyunsaturated fatty acids (PUFAs) deuterated at bis-allylic positions (D-PUFAs) have been proposed as inhibitors of non-enzymatic lipid peroxidation (LPO) in various disease models. Arachidonic acid (AA, 20:4 n-6) is the main precursor to several classes of eicosanoids, which are produced by cyclooxygenases (COX) and lipoxygenases (LOX). In this study we analyzed the relative activity of human recombinant enzymes COX-2, 5-LOX, and 15-LOX-2 using a library of arachidonic acids variably deuterated at the bis-allylic (C7, C10, and C13) positions. Kinetic parameters (KM, V<sub>max</sub>) and isotope effects calculated from kH/kD for seven deuterated arachidonic acid derivatives were obtained. Spectroscopic methods have shown that deuteration at the 13th position dramatically affects the kinetic parameters of COX-2 and 15-LOX-2. The activity of 5-LOX was evaluated by measuring hydroxyeicosatetraenoic acids (8-HETE and 5-HETE) using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). Deuteration at the seventh and 10th positions affects the performance of the 5-LOX enzyme. A flowchart is proposed suggesting how to modulate the synthesis of selected eicosanoids using the library of deuterated isotopologues to potentially fine-tune various inflammation stages.
Reconstruction as efficient alternative for least squares migration (2000)

PreviousNext No AccessSEG Technical Program Expanded Abstracts 2000Reconstruction as efficient alternative for least squares migrationAuthors: A. J. W. DuijndamA. W. F. VolkerP. M. ZwartjesA. J. W. DuijndamDelft University of Technology, A. W. F. VolkerDelft University of Technology, and P. M. ZwartjesDelft University of Technologyhttps://doi.org/10.1190/1.1815554 SectionsAboutPDF/ePub ToolsAdd to favoritesDownload CitationsTrack CitationsPermissions ShareFacebookTwitterLinked InRedditEmail Permalink: https://doi.org/10.1190/1.1815554FiguresReferencesRelatedDetailsCited ByImproving the resolution of migrated images by approximating the inverse Hessian using deep learningHarpreet Kaur, Nam Pham, and Sergey Fomel5 June 2020 | GEOPHYSICS, Vol. 85, No. 4Shot-record extended model domain preconditioners for least-squares migrationNasser Kazemi24 May 2019 | GEOPHYSICS, Vol. 84, No. 4Block row recursive least-squares migrationNasser Kazemi and Mauricio D. Sacchi6 July 2015 | GEOPHYSICS, Vol. 80, No. 5Fast least-squares migration with a deblurring filterNaoshi Aoki and Gerard T. Schuster15 December 2009 | GEOPHYSICS, Vol. 74, No. 6Fast least squares migration with a deblurring filterNaoshi Aoki and Gerard T. Schuster14 October 2009Converted-wave azimuth moveoutDaniel A. Rosales and Biondo Biondi26 May 2006 | GEOPHYSICS, Vol. 71, No. 3Sparseness‐constrained data continuation with frames: applications to missing traces and aliased signals in 2/3‐DGilles Hennenfent and Felix Herrmann7 December 2005A general reconstruction scheme for dominant azimuth 3D seismic dataM. A. Schonewille, R. Romijn, A. J. W. Duijndam, and L. Ongkiehong20 November 2003 | GEOPHYSICS, Vol. 68, No. 6Seismic data reconstruction by inversion to common offsetGEOPHYSICS, Vol. 67, No. 5Seismic Imaging Using Complex Wavelets SEG Technical Program Expanded Abstracts 2000ISSN (print):1052-3812 ISSN (online):1949-4645Copyright: 2000 Pages: 2484 publication data© 2000 Copyright © 2000 Society of Exploration GeophysicistsPublisher:Society of Exploration Geophysicists HistoryPublished: 04 Jan 2005 CITATION INFORMATION A. J. W. Duijndam, A. W. F. Volker, and P. M. Zwartjes, (2000), "Reconstruction as efficient alternative for least squares migration," SEG Technical Program Expanded Abstracts : 1012-1015. https://doi.org/10.1190/1.1815554 Plain-Language Summary PDF DownloadLoading ...
Intra-operative Brain Tumor Detection with Deep Learning-Optimized Hyperspectral Imaging (2023)

Surgery for gliomas (intrinsic brain tumors), especially when low-grade, is challenging due to the infiltrative nature of the lesion. Currently, no real-time, intra-operative, label-free and wide-field tool is available to assist and guide the surgeon to find the relevant demarcations for these tumors. While marker-based methods exist for the high-grade glioma case, there is no convenient solution available for the low-grade case; thus, marker-free optical techniques represent an attractive option. Although RGB imaging is a standard tool in surgical microscopes, it does not contain sufficient information for tissue differentiation. We leverage the richer information from hyperspectral imaging (HSI), acquired with a snapscan camera in the 468-787 nm range, coupled to a surgical microscope, to build a deep-learning-based diagnostic tool for cancer resection with potential for intra-operative guidance. However, the main limitation of the HSI snapscan camera is the image acquisition time, limiting its widespread deployment in the operation theater. Here, we investigate the effect of HSI channel reduction and pre-selection to scope the design space for the development of cheaper and faster sensors. Neural networks are used to identify the most important spectral channels for tumor tissue differentiation, optimizing the trade-off between the number of channels and precision to enable real-time intra-surgical application. We evaluate the performance of our method on a clinical dataset that was acquired during surgery on five patients. By demonstrating the possibility to efficiently detect low-grade glioma, these results can lead to better cancer resection demarcations, potentially improving treatment effectiveness and patient outcome.
Photoinduced Magnetization with a High Curie Temperature and a Large Coercive Field in a Co‐W Bimetallic Assembly (2012)

Abstract The crystal structure, magnetic properties, and temperature‐ and photoinduced phase transition of [{Co II (4‐methylpyridine)(pyrimidine)} 2 {Co II (H 2 O) 2 }{W V (CN) 8 } 2 ]·4H 2 O are described. In this compound, a temperature‐induced phase transition from the Co II ( S = 3/2)‐NC‐W V ( S = 1/2) [high‐temperature (HT)] phase to the Co III ( S = 0)‐NC‐W IV ( S = 0) [low temperature (LT)] phase is observed due to a charge‐transfer‐induced spin transition. When the LT phase is irradiated with 785 nm light, ferromagnetism with a high Curie temperature ( T C ) of 48 K and a gigantic magnetic coercive field ( H c ) of 27 000 Oe are observed. These T C and H c values are the highest in photoinduced magnetization systems. The LT phase is optically converted to the photoinduced phase, which has a similar valence state as the HT phase due to the optically induced charge‐transfer‐induced spin transition.
Partitioning of Solute Elements and Microstructural Changes during Heat-treatment of Cold-rolled High Strength Steel with Composite Microstructure (2021)

The partitioning of solute elements during intercritical annealing and the effects of partitioning on ferrite transformation during slow cooling after intercritical annealing in a 0.17% C-1.5% Si-1.7% Mn (mass%) steel were investigated by a new FE-EPMA (field emission electron probe microanalysis) technique. This new technique enables highly accurate measurement of the C distribution. During the intercritical annealing, C and Mn concentrated into austenite, while Si concentrated into ferrite. The distribution of Mn in austenite was inhomogeneous, and austenite with small Mn content was transformed into ferrite during slow cooling. This ferrite transformation proceeded in the NPLE (negligible partitioning local equilibrium) mode. Two kinds of ferrite were produced due to slow cooling, one being intercritically-annealed ferrite, and the other transformed ferrite. The transformed ferrite had larger Mn content than the intercritically-annealed ferrite. Furthermore, the transformed ferrite was classified into the ferrite grown epitaxially from the intercritically-annealed ferrite and that nucleated in the austenite with relatively small Mn content. Prior microstructure and distribution of solute elements before cooling are determined by the intercritical annealing conditions, and then control the ferrite transformation. Precise control of the ferrite transformation is effective for stable production of cold-rolled high strength steel with composite microstructure.
Biophysical Evaluation of SonoSteam®:: Effects on Chicken Broiler Skin, Escherichia coli and Campylobacter jejuni (2011)

In this study we employ a biophysical and molecular approach for the investigation of qualitative and quantitative changes in both food surface and bacteria upon surface decontamination by SonoSteam®. SonoSteam® is a recently developed method of food surface decontamination, which employs steam and ultrasound for effective heat transfer and short treatment times, resulting in significant reduction in surface bacteria. <br/>An efficient decontamination method should be cheap and fast, while eliminating harmful microorganism without decreasing the quality of the food. However, all known methods represent compromises between the abovementioned facts. Therefore it is important to develop new tools of analysis, which allow for an optimization of food decontamination. <br/> In this study we developed biophysical evaluation methods employing differential scanning calorimetry, second harmonic generation microscopy, two photon fluorescence microscopy and green fluorescence protein expressing Escherichia coli and Campylobacter jejuni. We employ these methods in the investigation of the effects of SonoSteam on both bacteria and broiler skin and compare our results with those obtained by traditional methods of food quality and safety evaluations. Our results show that there are no contradictions between data obtained by either approach. However, the biophysical methods draw a much more nuanced picture of the effects and efficiency of the investigated decontamination method, revealing e.g. an exponential dose/response relationship between SonoSteam treatment time and changes in collagen I, and a depth dependency in bacterial reduction, which points toward CFU counts overestimating total bacterial reduction. In conclusion the biophysical methods provide a less biased, reproducible and highly detailed system description, allowing for focused optimization and method validation. <br/>
The Augmenting Effect of Antibody on the Induction of an Immune Response (1972)

ABSTRACT Primary and secondary antigenic stimuli were given in the presence of antibody in order to study the role of antibody in the induction of the subsequent immune response. Primed cells immunized with crystalline bacterial α‐amylase (BαA) and crystalline Taka‐amylase A (TAA) were more effectively stimulated by antigen bearing cells which had been previously prepared by exposure to the two antigens in the presence of anti‐BαA or anti‐TAA than in the absence of the antibodies. The augmenting effect of the antibody was specific in relation to the antibody added. The primary antibody responses to BαA and TAA were also specifically augmented by the presence of the corresponding antibody, when two antigens were mixed with the antibody and injected intravenously into normal mice. When dinitrophenyl (DNP) residues were introduced to BaA, the immune response stimulated by DNP‐BαA was also augmented by anti‐DNP antibody. Although specificity of the response augmented by anti‐hapten or anti‐carrier antibody may be determined on a cellular level, the specificity of response augmented by either of these antibodies extended to the hapten as well as the carrier‐determinants. Thus, the presence of antibody directed against any of determinants on an antigen, might result in widening the spectrum of responsiveness of the animal to other antigenic determinants.
ChemInform Abstract: (Bis(dicyclohexylphosphino)ethane)platinum(0). Reactions with Alkyl, (Trimethylsilyl)methyl, Aryl, Benzyl, and Alkynyl Carbon‐Hydrogen Bonds. (1988)

Abstract The cis‐hydridoneopentyl‐Pt(II) complex (I) reductively eliminates neopentane and generates the diphosphine‐Pt(0) intermediate (II) which is not observed directly.
Supplementary Tables from Expression Profiles Provide Insights into Early Malignant Potential and Skeletal Abnormalities in Multiple Endocrine Neoplasia Type 2B Syndrome Tumors (2023)

Supplementary Tables from Expression Profiles Provide Insights into Early Malignant Potential and Skeletal Abnormalities in Multiple Endocrine Neoplasia Type 2B Syndrome Tumors
Elastic Properties, Raman and Infrared Spectroscopy (2013)

This chapter contains sections titled: Introduction Elastic Constants Young's Moduli and Shear Moduli Poisson's Ratios Bulk Moduli Extrema in Elastic Properties Effect of Temperature on Elastic Properties Raman Spectroscopy Infrared Spectroscopy Summary and Conclusions References
352 ISOLATION OF DISCRETE REGIONS OF THE BRAIN FROM IRON REGULATORY PROTEIN-2 KNOCKOUT MICE (2005)

<h3>Introduction</h3> Altered brain iron metabolism in the face of aging is cited as a significant risk factor for development of Alzheimer9s Disease. In order to correlate brain iron pools (total, loosely bound, non-heme) with novel magnetic resonance imaging (MRI) an experimental mouse model with an engineered deletion of iron regulatory protein-2 (IRP-2) was used. The novel MR sequences are termed susceptibility weighted imaging (SWI). These mice display signs of neurodegeneration after six months of age, manifested by ataxia, vestibular dysfunction, tremors, and postural abnormalities. The purpose of this study was to develop a dissection technique that enabled a standardized and reproducible method to secure regions of interest (ROI) for iron assay measurements. <h3>Methods</h3> 35 C57/B1 mice were euthanized with the Muromachi Microwave Fixator. Controlled microwave brain fixation provides immediate fixation of brain metabolites and conservation of iron in its various pools. Craniotomies are performed to expose the underlying fixed brain. We are able to dissect 12 distinct ROI from each hemisphere (5-10 mg in quantities, ww). <h3>Results</h3> Our dissection technique allowed isolation of the following ROI: olfactory bulbs, frontal cortex, parietal cortex, cerebellum, hippocampus, nucleus accumbens, striatum, ventral midline basal nucleus, quadrigeminal plate, lower midbrain, entorhinal cortex, and brainstem. The validity of the dissection was verified by the reconstruction of the ROI followed by histological sectioning, and T2 MRI imaging. <h3>Conclusions</h3> Controlled brain microwave fixation gives the brain tissue the unique consistency necessary for the successful isolation of distinct ROI. The newly created dissection protocol allows for the: a) identification and removal of 12 such structures, b) sufficient tissues for analyzing amounts of iron or other metabolites, and c) the unique ability to correlate iron content in its various pools with image SWI MRI. The mouse model will form the basis of the interpretation of human brain iron MR determinations.
Important considerations for methaemoglobin measurement in fish blood: assay choice and storage conditions (2002)

Spectrophotometric assays of methaemoglobin (metHb) in rainbow trout Oncorhynchus mykiss, channel catfish Ictalurus punctatus, tilapias Tilapia niloticus and Tilapia zillii and white sturgeon Acipenser transmontanus, under baseline conditions, were low (<4%) for each species, and yet higher than human values (<1%). MetHb results for a given fish species varied significantly between assays and two assays were deemed unacceptable for particular animals. For rainbow trout, white sturgeon, and the two species of tilapia, the Dubowski method gave uncharacteristically high estimates of metHb. MetHb could not measured in tilapia blood using the Evelyn & Malloy method due to spectral interference. Only the Horecker & Brackett assay worked well for all species. Storage conditions were extremely important in the quantification of metHb in rainbow trout blood. For consistent values, samples can be stored up to 4 h on ice (0° C) or at least 20 days under liquid nitrogen (− 196° C). Auto-oxidation, however, elevates rainbow trout metHb at − 20 and − 80° C. It should not be assumed that the blood of fishes and humans perform similarly during assays of metHb.
Carboxypeptidase G2 rescue after high-dose methotrexate. (1996)

CPG2 rescue is a safe, effective alternative to leucovorin rescue after HD MTX and may prove particularly useful for the treatment of MTX-sensitive CNS tumors, as it does not affect CSF MTX levels.
ChemInform Abstract: HIGHLY SUBSTITUTED DIENES FROM BUTYNE‐1,4‐DIOL. A ONE‐FLASK SYNTHESIS AND THE MECHANISM OF FORMATION OF 3‐(N,N‐DIETHYLAMINO)‐2‐PHENYLSULFINYLBUTADIENE (1982)

Abstract In hoher Ausbeute kann das Butin (I) in das Butadienderivat (II) übergeführt werden.