gebhart/patrepeval huggingface dataset:
Numerical Simulation of Oil Displacement by Water in a Vuggy Fractured Porous Medium (2001)

Abstract This paper presents a numerical simulation study of the flow behavior within a vuggy fractured medium when oil is displaced by water. The experiments were conducted with an acrylic cell, where fractures were represented by channels of 2 mm wide, 1.7 mm depth and 16 cm long, whereas the vugs were represented by cylinders of 1 cm diameter and 1.7 mm depth. The experimental runs were carried out at different water injection rates between 2 and 200 ml/h and variable pressure between 0.006 and 0.910 psi. The simulation runs, carried out using Eclipse 300 reservoir simulator, required to discretize the domain by using a rectangular grid with 2 mm square cells. Each cell in the vugs was divided into 3, 4 and 5 parts to approximate the vugs shape. To simulate correctly the phenomena that occur in the experimental cell, it was necessary to try 3 different two-dimensional grids (up to12000 cells were used). It was also necessary to generate relative permeability curves and its corresponding capillary pressure curve. Furthemore a method to calculate the capillary pressure is presented, both when the wetting or nonwetting relative permeability is available. A good representation of the lab results was obtained through the simulation. This is relevant as an application of a reservoir simulator to study the dynamical behavior of fluids at this scale.
[The effects of chlorine disinfection on the resistance of E. coli in water]. (1992)

Under defined conditions E. coli were subjected to repeated chlorine disinfections 10 times. The survival E. coli at 30 s (A10), and the survival E. coli at 10 min (B10) had no difference in resistance to chlorine to their original strain (A0). However, the compound E. coli (C10) survived at various contact time showed an increased resistance than their original strain (A10), the degree of increased resistance varying with different conditions of disinfection. E. coli C1(0) lost its increased resistance after it has been passaged 10 times on nutrient agar.
Digital Pattern Recognition by Moments (1962)

article Free Access Share on Digital Pattern Recognition by Moments Author: Franz L. Alt National Bureau of Standards, Washington, D. C. National Bureau of Standards, Washington, D. C.View Profile Authors Info & Claims Journal of the ACMVolume 9Issue 201 April 1962pp 240–258https://doi.org/10.1145/321119.321122Published:01 April 1962Publication History 103citation1,370DownloadsMetricsTotal Citations103Total Downloads1,370Last 12 Months34Last 6 weeks3 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my AlertsNew Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteeReaderPDF
Structure of glyoxal in water (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure of glyoxal in waterEarl B. WhippleCite this: J. Am. Chem. Soc. 1970, 92, 24, 7183–7186Publication Date (Print):December 1, 1970Publication History Published online1 May 2002Published inissue 1 December 1970https://pubs.acs.org/doi/10.1021/ja00727a027https://doi.org/10.1021/ja00727a027research-articleACS PublicationsRequest reuse permissionsArticle Views1510Altmetric-Citations86LEARN ABOUT THESE METRICSArticle Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated. Share Add toView InAdd Full Text with ReferenceAdd Description ExportRISCitationCitation and abstractCitation and referencesMore Options Share onFacebookTwitterWechatLinked InRedditEmail Other access optionsGet e-Alertsclose Get e-Alerts
PTH Regulates Fetal Blood Calcium and Skeletal Mineralization Independently of PTHrP (2001)

PTH and PTHrP both act in the regulation of fetal mineral metabolism. PTHrP regulates placental calcium transfer, fetal blood calcium, and differentiation of the cartilaginous growth plate into endochondral bone. PTH has been shown to influence fetal blood calcium, but its role in skeletal formation remains undefined. We compared skeletal morphology, mineralization characteristics, and gene expression in growth plates of fetal mice that lack parathyroids and PTH (Hoxa3 null) with the effects of loss of PTHrP (Pthrp null), loss of PTH/PTHrP receptor (Pthr1 null), and loss of both PTH and PTHrP (Hoxa3 null × Pthrp null). Loss of PTH alone does not affect morphology or gene expression in the skeletal growth plates, but skeletal mineralization and blood calcium are significantly reduced. In double-mutant fetuses (Hoxa3 null/Pthrp null), combined loss of PTH and PTHrP caused fetal growth restriction, limb shortening, greater reduction of fetal blood calcium, and reduced mineralization. These findings suggest that 1) PTH may play a more dominant role than PTHrP in regulating fetal blood calcium; 2) blood calcium and PTH levels are rate-limiting determinants of skeletal mineral accretion; and 3) lack of both PTH and PTHrP will cause fetal growth restriction.
Electrohydrodynamically induced airflow in a one atmosphere uniform glow discharge surface plasma (2002)

Summary form only given. The One Atmosphere Uniform Glow Discharge Plasma (OAUGDP) is capable of operating at one atmosphere in air and other gases, and its active species can be used to sterilize and decontaminate surfaces, and to increase the wettability and surface energy of materials. This paper will present the theory of three distinct mechanisms for EHD-induced now acceleration at one atmosphere using the OAUGDP. The first of these mechanisms acts on the net charge density of the OAUGDP, and produces neutral gas flow velocities on the order of one to ten meters per second as the result of a paraelectric effect in which the plasma is accelerated in the direction of an increasing electric field gradient. This phenomenon was observed during wind tunnel tests, in which the paraelectrically induced gas flow was observed to have the predicted linear dependence on the applied voltage, and to be of the correct magnitude. The second mechanism is the result of the momentum transferred to the neutral gas from the mobility drift of ions and electrons in a DC electric field applied to a OAUGDP. The ion momentum transfer dominates the electron momentum transfer, and can produce neutral gas now velocities approaching Mach 1.0 if heating and viscous effects are neglected. The third mechanism is flow induced by peristaltic EHD effects on an OAUGDP, in which a series of strip electrodes are energized by a polyphase low frequency RF power supply, in such a way that a traveling-wave electric field exists along the surface on which the electrodes are mounted. This electric field can accelerate the ions and the neutral gas to velocities of several hundred meters per second.
Performance of corrugated quantum well infrared photodetectors (1998)

Corrugated quantum well infrared photodetectors (C-QWIPs) use total internal reflection to couple normal incident light into the detectors. In this work, we report the performance of C- QWIPs at different wavelengths. Compared with 45 degrees edge coupling, a C-QWIP increases the background photocurrent to dark current ratio r<SUB>I</SUB> by a factor between 2.4 and 4.4, thereby increasing the background-limited temperature by 3 to 5 K. The detectivity D* is increased by a factor of 2.4. We applied the C-QWIP to two-color detection and obtained precision thermometric measurements. We have also fabricated and characterized a 256 X 256 C-QWIP array with cutoff wavelength at 11.2 micrometer. The uncorrected nonuniformity ((sigma) /mean) in the central 128 X 128 subarray is 2.3%. The NE(Delta) T at 63 K is estimated to be 23 mK. Furthermore, we have shown that r<SUB>I</SUB> can be further increased by fabrication of the C-QWIP into the corrugated hot-electron transistor structure. The enhanced performance of the corrugated structure, combined with its simple processing steps, greatly improves the QWIP technology.
Phage Display in the Quest for New Selective Recognition Elements for Biosensors (2019)

Phages are bacterial viruses that have gained a significant role in biotechnology owing to their widely studied biology and many advantageous characteristics. Perhaps the best-known application of phages is phage display that refers to the expression of foreign peptides or proteins outside the phage virion as a fusion with one of the phage coat proteins. In 2018, one half of the Nobel prize in chemistry was awarded jointly to George P. Smith and Sir Gregory P. Winter "for the phage display of peptides and antibodies." The outstanding technology has evolved and developed considerably since its first description in 1985, and today phage display is commonly used in a wide variety of disciplines, including drug discovery, enzyme optimization, biomolecular interaction studies, as well as biosensor development. A cornerstone of all biosensors, regardless of the sensor platform or transduction scheme used, is a sensitive and selective bioreceptor, or a recognition element, that can provide specific binding to the target analyte. Many environmentally or pharmacologically interesting target analytes might not have naturally appropriate binding partners for biosensor development, but phage display can facilitate the production of novel receptors beyond known biomolecular interactions, or against toxic or nonimmunogenic targets, making the technology a valuable tool in the quest of new recognition elements for biosensor development.
Activities for 3.15-International Consumer Right Day Held in Beijing (2005)

On March 15th, 2005, the spot activity for the consultation and propaganda of 3. 15 International Consumer Right Day, jointly hosted by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China (AQSIQ), the People's Government of Beijing, the Bureau of Quality and Technical Supervision of Beijing and the Entry-Exit Inspection and Quarantine Bureau of Beijing was held at Wang Fujing, Beijing.
Local oestriol treatment improves the structure of elastic fibers in the skin of postmenopausal women. (1987)

The effect of local oestriol treatment on the abdominal skin was studied in 14 postmenopausal women. Six control patients received a similar ointment without oestriol. The duration of the treatment in all cases was three weeks. The elastic fibers in the papillary dermis were thickened, better orientated and slightly increased in number in half of these patients but in none of the control patients. The epidermal thickness was slightly increased in four of the patients treated with oestriol. No significant changes were observed in the epidermal cell size, mitotic activity, dermal vascularization or inflammatory infiltrate between the specimens taken before and after the treatment or between the treatment groups.
Design of solar cell array preventing electrostatic discharge for satellite use (2002)

A new design of a cover glass which can be used for a solar cell array in a satellite is presented. The substrate of a cover glass used in this experiment is a ceria-doped microsheet glass. To minimize surface reflection and block ultra-violet, AR (anti-reflective) and UVR (ultra-violet reflective) coating are added to the substrate, respectively. The coating materials for AR and UVR are MgF/sub 2/ and Ta/sub 2/O/sub 5//SiO/sub 2/, respectively. ITO (indium tin oxide) coating also is added to substrate for preventing ESD (electrostatic discharge). The thickness of a ITO and coating sequence of AR, UVR, ITO are optimized, respectively. The computer simulation of the cover glasses with MACLEOD program showed that the transmittance of all cover glass were greater than 90%. In the optical test, the transmittance of AR/ITO/substrate and UVR/ITO/substrate are higher than that of ITO/AR/substrate and ITO/UVR/substrate. However, the threshold voltages for the onset of ESD of AR/ITO/substrate and UVR/ITO/substrate exceed 500 V. The cover glass shows a serious degradation when it is exposed to in UV radiation for 500 hours. However, the further degradation did not take place more after 500 hours exposition to UV radiation.
Object lessons learned from a distributed system for remote building monitoring and operation (1998)

In this paper we describe our experiences with the design, the deployment, and the initial operation of a distributed system for the remote monitoring and operation of multiple heterogeneous commercial buildings across the Internet from a single control center. Such systems can significantly reduce building energy usage.Our system is distinguished by its ability to interface to multiple heterogeneous legacy building Energy Management Control Systems (EMCSs), its use of the Common Object Request Broker Architecture (CORBA) standard communication protocols for the former task, development of a standardized naming system for monitoring points in buildings, the use of a relational DBMS to store and process time series data, automatic time and unit conversion, and a scripted time series visualization system.We describe our design choices and our experiences in development and operation. We note requirements for future distributed systems software for interoperability of heterogeneous real-time data acquisition and control systems.
R-Phenylisopropyl-Adenosine Increases Spinal Cord Blood Flow After Intrathecal Injection in the Rat (1992)

The A1-adenosine receptor agonist, R-phenylisopropyl-adenosine (R-PIA), demonstrated antinociceptive properties in animal studies after intrathecal administration. In the evaluation of a drug for possible spinal injection in humans, the effects of intrathecal R-PIA on spinal cord blood flow (SCBF) were investigated using the laser-Doppler flow-metry technique in anesthetized rats. In low doses (0.1-1 nmol), no change in SCBF was recorded, whereas larger doses (10-100 nmol) caused a significant increase in SCBF. No change in systemic arterial blood pressure could be seen, except for a decrease after administration of the largest dose of R-PIA (100 nmol). It is concluded that R-PIA in doses of 10 nmol and larger induces an increase in SCBF after intrathecal injection in anesthetized rats and that an increase in blood flow is seen before any effect on the systemic circulation is detected. It can also be deduced that the antinociceptive effects of R-PIA after intrathecal injection are not a consequence of spinal ischemia and that disturbances in local blood flow cannot be expected to constitute a neurotoxic factor.
Effect of Storage in Distilled Water for Three Months on the Antimicrobial Properties of Poly(methyl methacrylate) Denture Base Material Doped with Inorganic Filler (2016)

The colonization of poly(methyl methacrylate) (PMMA) denture base materials by pathogenic microorganisms is a major problem associated with the use of prostheses, and the incorporation of antimicrobial fillers is a method of improving the antimicrobial properties of these materials. Numerous studies have demonstrated the initial <i>in vitro</i> antimicrobial effectiveness of this type of material; however, reports demonstrating the stability of these fillers over longer periods are not available. In this study, silver sodium hydrogen zirconium phosphate was introduced into the powder component of a PMMA denture base material at concentrations of 0.25%, 0.5%, 1%, 2%, 4%, and 8% (<i>w</i>/<i>w</i>). The survival rates of the gram-positive bacterium <i>Staphylococcus aureus</i>, gram-negative bacterium <i>Escherichia coli</i> and yeast-type fungus <i>Candida albicans</i> were established after fungal or bacterial suspensions were incubated with samples that had been previously stored in distilled water. Storage over a three-month period led to the progressive reduction of the initial antimicrobial properties. The results of this study suggest that additional microbiological tests should be conducted for materials that are treated with antimicrobial fillers and intended for long-term use. Future long-term studies of the migration of silver ions from the polymer matrix and the influence of different media on this ion emission are required.
Impaired Oxidative Status Is Strongly Associated with Cardiovascular Risk Factors (2017)

The main target of primary prevention is the identification of cardiovascular risk factors aimed at reducing of the adverse impact of modifiable factors, such as lifestyle and pharmacological treatments. In humans, an alteration of the oxidative status has been associated with several pathologies, including diabetes and cardiovascular diseases. However, the prognostic relevance of circulating oxidative stress biomarkers remains poorly understood. Our study explored, in a healthy population (<i>n</i> = 322), the relationship between oxidative status and cardiovascular risk factors. Here, we were successful in demonstrating that plasmatic oxidative status is significantly associated with traditional cardiovascular risk factors. We revealed a significant depletion in the efficacy of total plasma antioxidant barrier in high cardiovascular risk categories, and we confirmed an age-related alteration of oxidative status. The efficacy of total plasma antioxidant barrier is significantly depleted in relation to metabolic disorders. Interestingly, the cholesterol imbalance is the main factor in depleting the efficacy of total plasma antioxidant barrier. The oxidative status is also influenced by hypertension, and a slight increase in systolic blood pressure determines a highly significant effect. We showed that the first detectable event of a redox disturbance is the repairing intervention of the antioxidant barrier that is thus decreased as overutilized.
Characterization of a Mannose-6-Phosphate Isomerase from <i>Thermus thermophilus</i> and Increased <scp>l</scp> -Ribose Production by Its R142N Mutant (2010)

An uncharacterized gene from Thermus thermophilus, thought to encode a mannose-6-phosphate isomerase, was cloned and expressed in Escherichia coli. The maximal activity of the recombinant enzyme for L-ribulose isomerization was observed at pH 7.0 and 75°C in the presence of 0.5 mM Cu(2+). Among all of the pentoses and hexoses evaluated, the enzyme exhibited the highest activity for the conversion of L-ribulose to L-ribose, a potential starting material for many L-nucleoside-based pharmaceutical compounds. The active-site residues, predicted according to a homology-based model, were separately replaced with Ala. The residue at position 142 was correlated with an increase in L-ribulose isomerization activity. The R142N mutant showed the highest activity among mutants modified with Ala, Glu, Tyr, Lys, Asn, or Gln. The specific activity and catalytic efficiency (k(cat)/K(m)) for L-ribulose using the R142N mutant were 1.4- and 1.6-fold higher than those of the wild-type enzyme, respectively. The k(cat)/K(m) of the R142N mutant was 3.8-fold higher than that of Geobacillus thermodenitrificans mannose-6-phosphate isomerase, which exhibited the highest activity to date for the previously reported k(cat)/K(m). The R142N mutant enzyme produced 213 g/liter L-ribose from 300 g/liter L-ribulose for 2 h, with a volumetric productivity of 107 g liter(-1) h(-1), which was 1.5-fold higher than that of the wild-type enzyme.
<title>In-situ characterization of SiO<formula><inf><roman>2</roman></inf></formula> deposition and growth for gate-oxides</title> (1992)

The use of Si02 gate oxides with thicknesses of <100A will put stringent requirements on the control of contamination during device manufacturing. It has been realized only recently that control of molecular contamination is as important for critical device films as control of particulates. We present in this paper an investigation of challenges of thin gate oxides, possible alternative oxide deposition schemes, and control of foreign molecular species. using an ultra-clean, integrated processing system with in-situ analysis capabilities. In particular, the interfacial region of thermal gate oxides is investigated, as well as the chemical vapor deposition of oxides from SiH4 and 02 , and the incorporation of fluorine into gate oxides.
Multi-User Motion Matching Interaction for Interactive Television using Smartwatches (2017)

Motion matching input, following continuously moving targets by performing bodily movements, offers new interaction possibilities in multiple domains. Unlike optical motion matching input systems, our technique utilizes a smartwatch to record motion data from the users' wrists, providing robust input regardless of lighting conditions or momentary occlusions. We demonstrate an implementation of motion matching input using smartwatches for interactive television, that allows multi-user input using bodily movements and offers new interaction possibilities by means of a second screen as extension on TV display.
Design of passive UHF RFID circulators/duplexers using directional couplers (2012)

The design of passive circulators/duplexers for RFID applications in the UHF band is presented. The design idea is based on the use of simple passive directional couplers, offering simplicity and low cost compared to ferrite devices or active architectures. The Tx/Rx isolation problem is solved exploiting a mismatched load, which creates a cancelling signal on the Rx port. Additional impedance matching is applied at the Tx port, in order to balance the effects of the mismatch load at the input (Tx). Both branch-line and ring couplers are alternatively used, designed mainly for unequal power division between output ports. A variety of design examples is presented, including miniaturized topologies, aiming at the reduction of size and cost. Design frequency is chosen at 900MHz, trying to cover both 860MHz and 910MHz bands.
Non-A non-B hepatitis (1985)

Department of Medicine, Royal Hallamshire Hospital, Sheffield, UK Current Opinion in Gastroenterology 1985, 1:509–515
Gibson Assembly® Master Mix – Assembly (E2611) v1 (2014)

This is the protocol for the Gibson Assembly using the Gibson Assembly® Master Mix (E2611).
A novel framework for Farsi and latin script identification and Farsi handwritten digit recognition (2010)

Optical character recognition is an important task for converting handwritten and printed documents to digital format. In multilingual systems, a necessary process before OCR algorithm is script identification. In this paper novel methods for the script language identification and the recognition of Farsi handwritten digits are proposed. Our method for script identification is based on curvature scale space features. The proposed features are rotation and scale invariant and can be used to identify scripts with different fonts. We assumed that the bilingual scripts may have Farsi and English words and characters together; therefore the algorithm is designed to be able to recognize scripts in the connected components level. The output of the recognition is then generalized to word, line and page levels. We used cluster based weighted support vector machine for the classification and recognition of Farsi handwritten digits that is reasonably robust against rotation and scaling. The algorithm extracts the required features using principle component analysis (PCA) and linear discrimination analysis (LDA) algorithms. The extracted features are then classified using a new classification algorithm called cluster based weighted SVM (CBWSVM). The experimental results showed the promise of the algorithms.