gebhart/patrepeval huggingface dataset:
Measurement of Phase Boundaries of Hydrocarbon Mixtures Using Fiber Optical Detection Techniques (2000)

In this paper we present a novel technique for experimental determination of dew and bubble points of oils and gases under reservoir conditions. Extrinsic fiber optic sensors mounted on an 80-mL titanium equilibrium cell are part of the measurement setup. Formation of a new phase in the sample confined within the cell is sharply indicated by the creation of characteristic changes in the fiber optic signal. This allows for precise detection of dew and bubble point conditions. The entire apparatus is transportable and can easily be carried to field locations for quick and accurate studies of bottom hole samples. Phase behavior measurements (dew and bubble points) of three model systems and a real reservoir fluid are presented.
Formation of a Core/Rim Structure in Ti(C, N)-based Cermets (2006)

Model experiment was introduced to obtain the formation of a core/rim structure by only liquid phase reaction in Ti(C, N)-based cermet alloys. Infiltrated Ti(C, N)-Ni, <TEX>$MO_2C-Ni$</TEX>, and TaC-Ni cermets were bonded to sandwiched specimen by heat treatment <TEX>$1450^{\circ}C$</TEX> for 5hr. With nitrogen addition, both (Ti, Mo) (C, N) and (Ti, Ta) (C, N) rim structure was nucleated around comer of cuboidal Ti(C, N) core. However, equilibrium shapes of(Ti, Mo) (C, N) and (Ti, Ta) (C, N) rim were different possibly due to the effect of interface energy. The core/rim and rim! binder interfaces were parallel to each other with TaC addition, while rotated to each other with <TEX>$MO_2C$</TEX> addition.
The Oxford Companion to the Earth (2000)

THERE ARE OVER 900 ENTRIES TO THE COMPANION A FULL HEADWORD LIST IS AVAILABLE FROM SUSAN HARRISON, AND WILL BE SENT TO ALL OUP OFFICES AND BRANCHES. THE FOLLOWING OFFERS A SELECTION FROM THE LIST ACID RAID AGE AND EARLY HISTORY OF THE EARTH AND SOLAR SYSTEM AMPHIBIANS ANDEAN AND CORDILLERAN MOUNTAIN BELTS ANTARCTIC CLIMATE ANTICYCLONE ATLANTIS: GEOLOGICAL FACT OR FICTION? ASBESTOS BADLANDS BEACHES BIOSTRATIGRAPHY BURGESS SHALE FAUNA CANADA CATASTROPHISM AND UNIFORMITARIANISM CAVES CLIMATE MODELS CONTINENTAL DRIFT CORAL REEFS DATING ROCKS DESERTS DIAMONDS DINOSAURS EARTHQUAKE HAZARDS AND PREDICTIONS EL NINO ENVIRONMENTAL TOXICOLOGY EROSION FAULTS AND FAULTING FLASH FLOODS FOSSILS AND FOLKLORE GAIA GEOCHEMICAL MINERAL EXPLORATION GEOGRAPHICAL INFORMATION SYSTEMS GEOLOGICAL CONTROVERSIES GEOMORPHOLOGY GIANT PLANETS GRAVEL RESOURCES GROUNDWATER HOT SPOTS HYDROLOGY ICE AGES INDUSTRAIL WASTE DISPOSAL INTRUSION TYPES AND INTRUSIVE IGNEOUS ROCKS JET STREAMS KNICKPOINTS LAMARCK LAVA LIMESTONES MAGMA AND MAGMATISM MANTLE AND CORE COMPOSITION MARINE GEOLOGY MID-OCIAN RIDGES MINERAL WATER NATURAL GAS NUCLEAR ENERGY OCEAN CHEMISTRY ORE DEPOSITS ORDOVICIAN ORIGIN OF LIFE OZONE LAYER PALAEOVOLCANISM AND CLIMATE CHANGE PEATLANDS AND BOGS PETROLEUM PLATE TECTONICS QUICKSAND RADIOACTIVE ELEMENTS REMOTE SENSING RIVERS AND STREAMS SEISMIC EXPLORATION METHODS SLOPE STABILITY SOIL EROSION SOLAR CYCLES STRATIGRAPHY SURFACE WATER TETHYS TORNADOES TSUNAMIS UNCONFORMITY VEGETATION AND CLIMATE CHANGE VOLCANOES WEATHER FRONTS WETLANDS ZOOGEOMORPHOLOGY
Using a cloud infrastructure for the on demand provisioning of worker nodes in a grid environment (2012)

We showcase the development and deployment of a service that uses a reference Cloud infrastructure to dynamically scale up or down the resources offered through a production Grid cluster. Whenever certain thresholds related to the demand for computing resources are met the service handles the introduction (or removal) of virtualized computing resources under the Grid computing queues.
Recovery Currents in Germanium <i>p</i> — <i>n</i> Junction Diodes (1953)

When a germanium p — n junction biased in the forward direction has a reverse voltage suddenly applied, a large transient current flows during the ``recovery time.'' A proposed mechanism for this current involving diffusion of stored minority carriers to the barrier is compared with experimental results. Since the current is related to the diode forward direction characteristics these are examined. Finally a variable time delay utilizing the recovery current effect is discussed.
Manganese ions in the monoclinic, tetragonal and cubic phases of zirconia: an XRD and EPR study (2003)

Mn-doped monoclinic, tetragonal and cubic zirconia samples were characterized by XRD and EPR. The cubic modification was obtained by doping hydrous zirconia with Y2O3 (YSZ). The ZrO2 structure influences the solid solution formation and the nature of manganese species. EPR analysis revealed the following manganese paramagnetic species: isolated Mn4+ and Mn2+ in the monoclinic phase; isolated Mn2+ in the tetragonal phase; isolated Mn2+ in the cubic YSZ; and clustered Mn2+ in Mn3O4 and in MnO particles on the zirconia surface. Quantitative EPR suggested Mn3+ in all zirconia phases. After heating in air, Mn3+ and Mn4+ ions entered the monoclinic zirconia phase at 1273–1623 K and surface Mn3O4 particles formed, whereas Mn3+ and Mn2+ entered the tetragonal zirconia phase at 973–1173 K and at 1623 K into cubic YSZ. In all zirconia phases, subsequent heating in H2 at 773–973 K reduced Mnn+ ions to Mn2+ and converted Mn3O4 particles on the surface into MnO. In monoclinic zirconia heated in air at 1623 K the Mn-solubility limit was 0.2 wt.%.
TESTING DRUGS FOR TERATOGENICITY AND THEIR EFFECTS ON FERTILITY (1970)

Journal Article TESTING DRUGS FOR TERATOGENICITY AND THEIR EFFECTS ON FERTILITY Get access J. M. ROBSON J. M. ROBSON Chelsea College of Science and TechnologyLondon Search for other works by this author on: Oxford Academic PubMed Google Scholar British Medical Bulletin, Volume 26, Issue 3, September 1970, Pages 212–216, https://doi.org/10.1093/oxfordjournals.bmb.a070785 Published: 01 September 1970
Periodic solutions of the third-order differential equation with right-hand side in the form of nonlinear restoring term plus general gradient-like part (1991)

The sufficient conditions of the existence of a harmonic to equation (1) are carried out.
Innovative Capillary Deliquification Safety System Resolves Liquid Loading Problems With a Cost-Effective Solution that Maximizes Production While Maintaining Well-Safety Requirements (2010)

Abstract Many mature gas wells worldwide have had to be shut-in due to water loading in the production string, which occurs when the liquid's hydrostatic column pressure equals that of the reservoir pressure, stopping production. Periodically injecting surfactant chemicals from surface has been tried but is only a temporary solution. Continuos injection of a downhole foaming agent can be used to lift the water and restore gas production. If an injection line is not part of the completion string, an external injection line can be installed either with a rig workover or a rigless through-tubing installation. The first solution requires significant rig expense, and the second can cause loss of downhole safety-valve functionality. A more cost-effective, safer problem resolution method was needed. This paper describes the first ENI field trial of a Capillary Deliquification Safety System that can be retrofitted into existing wells with rigless intervention to quickly reinstate production. This method maintains safety valve functionality and eliminates an expensive well workover. The installation equipment includes a modified wireline-retrievable surface-controlled sub-surface safety valve (WR-SCSSV) with capillary tubing attached below. The injection method operates via the control system for the WR-SCSSV. The installation, which uses the existing control line of the safety valve to inject chemicals, does not require wellhead modification. The trial installation of the new system took place in a shut-in well in a Barbara offshore field in the Adriatic Sea. The trial showed that the system could provide a cost-effective alternative to well workovers and occasional surfactant treatments and will significantly increase hydrocarbon recovery from the reservoir while maintaining the well's safety level.
Failure to thrive (1993)

We are privileged to be able to present this article to our readers. The author had sent us the manuscript and when we reviewed it we felt that the information was textbook in nature and very current. We found out later that the information is also published in the Handbook forPediatric Nutzition, Queen Samour P, and Lang C, eds., Gaithersburg, Md: Aspen Publishers, Inc; 1992. We urge you to read the article; it gives the most current clinical data and suggestions for the management of this serious condition, which affects a large number of American children.
Mnemonic and predictive functions of cortical neurons in a memory task (1992)

Single-neuron discharge was recorded from prefrontal and posterior parietal cortex in monkeys performing a visuo-motor memory task with temporal and spatial separation between cue (color) and directional manual response. During the delay interval between cue and response, neurons in both cortices engaged in two concurrent and reciprocal trends of discharge: (a) sensory-coupled, decelerating firing apparently related to color retention, or (b) motor-coupled, accelerating firing apparently related to the anticipated response direction. In both cortices, the acceleration of the direction-anticipating activity was related to the probability with which the animal could predict, and prepare for, the correct response site. Our findings suggest that neurons from prefrontal and parietal cortex are part of distributed networks, with representational and operational properties, for visuomotor cognitive processing.
Distributed coverage with multi-robot system (2006)

In this paper, we proposed an improved algorithm for the multi-robot complete coverage problem. Real world applications such as lawn mowing, chemical spill clean-up, and humanitarian de-mining can be automated by the employment of a team of autonomous mobile robots. Our approach builds on a single robot coverage algorithm, Boustrophedon decomposition. The robots are initially distributed through space and each robot is allocated a virtually bounded area to cover. The area is decomposed into cells where each cell width is fixed. The decomposed area is represented using an adjacency graph, which is incrementally constructed and shared among all the robots. Communication between the robots is available without any restrictions. Experiments on both simulated and physical hardware demonstrated the viability of employing the algorithm to perform distributed coverage of a given unknown area with multiple robots
Selective Monitoring of Formaldehyde in Air by Use of the Stopped-Flow Technique (1995)

Abstract Two kinetic methods based on the stopped-flow technique are proposed for the determination of formaldehyde in air by reaction with 3-methyl-2-benzothiazolone hydrazone (MBTH), followed by photometric detection at 620 nm, and with acetylacetone, followed by fluorimetric detection at δcx = 410 nm and δcm = 510 nm. Kinetic methodology considerably shortens the formaldehyde analysis time (measurements can be obtained within a few seconds) relative to existing methods based on these reactions and equilibrium measurements (ca. 30 and 60 min are needed for equilibrium to be reached in the photometric and fluorimetric method, respectively). One additional advantage of the kinetic methodology is its high selectivity, which was checked by studying the effect of various organic and inorganic species. Calibration graphs were linear over the ranges 20–600 and 20–1000 ng ml−1 formaldehyde for the photometric and fluorimetric methods, respectively. Both methods were applied to the determination of formaldehyde in air from urban- areas; the accuracy of the results was confirmed by comparing them with those provided by the standard chromotropic acid method. The poposed kinetic methods were found to be more sensitive, rapid, reproducible and easier to use than the widely accepted standard method.
Corpus-based English Near Synonym Distinction in Learner Autonomy Mode (2011)

Learner autonomy theory and corpus linguistics theory have been studied for many years, but the combination of the two theories is seldom found. The present paper is to uses two theories to establish a corpus-based near synonymy distinction in learner autonomy mode, and then use this mode to help the students distinguish the near synonyms and improve their English learning, and at the same time improve their autonomously learning abilities. The results show that this mode can improve the student’s English learning and autonomy learning ability.
Waterflooding in Chalk: Relationship between Oil Recovery, New Wettability Index, Brine Composition and Cationic Wettability Modifier (2005)

Abstract Naturally fractured carbonate reservoirs are usually neutral to preferential oil-wet, which prevents water from being an efficient IOR-fluid. Spontaneous imbibition of water into the matrix blocks is believed to be the key mechanism for improved oil recovery by waterflooding. In previous study, it was documented that the wetting condition of carbonates was mainly dictated by the acid number, AN, of the crude oil. In the present study, series of long-term spontaneous imbibition tests were conducted at 70°C on chalk cores representing different wetting conditions. The oil recovery is discussed in terms of a new wetting index and the property/composition of the imbibing fluids. Synthetic seawater was used as the base imbibing fluid, and model Ekofisk formation water was used as initial water present in the cores. The cores were aged in crude oils with different AN and at a variety of temperatures ranging from 40-120°C. Major observations are: (1) Good relationship between the new wetting index and oil recovery was established. (2) The water-wet fraction of the chalk surface must be above 0.6 for spontaneous imbibition to occur.(3) Sulfate in the imbibing fluid appeared to have a wettability modifying effect, especially at low water-wet conditions. (4) Cationic surfactant of the type [R-N(CH3)3]+ dissolved in the imbibing fluid improved the oil recovery significantly, especially close to neutral wetting conditions. The effects of sulfate on the oil recovery is discussed in terms of potential determining ions towards chalk, as well as its potential as wettability modifying agent.
A multicenter evaluation of the Pan<i>Leuco</i>gating method and the use of generic monoclonal antibody reagents for CD4 enumeration in HIV‐infected patients in Thailand (2005)

These observations demonstrate that CD4 enumeration by PanLeucogating is reliable and can be performed to an identical standard in a quality-assured network of collaborating laboratories as a new cost-effective approach to HIV monitoring.
7-Azaindole. VI. Preparation of 5- and 6-Substituted 7-Azaindoles<sup>1</sup> (1959)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT7-Azaindole. VI. Preparation of 5- and 6-Substituted 7-Azaindoles1Michael M. Robison, Bonnie L. Robison, and Florence P. ButlerCite this: J. Am. Chem. Soc. 1959, 81, 3, 743–747Publication Date (Print):February 1, 1959Publication History Published online1 May 2002Published inissue 1 February 1959https://pubs.acs.org/doi/10.1021/ja01512a058https://doi.org/10.1021/ja01512a058research-articleACS PublicationsRequest reuse permissionsArticle Views1017Altmetric-Citations23LEARN 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
[Methodology and assessment of testing bronchial reactivity]. (1990)

Starting from diagnostic relevance of non specific bronchial challenges the principles and experiences of a screening type acetylcholine test which is recommended as a standard in GDR since 1974 are discussed. For special tasks like longitudinal studies and clinical pharmacology a threshold method using histamine was derived and modified from literature. Special attention is paid to diagnostic, prognostic and expertizing relevance of non specific bronchial hyperreactivity.
Preliminary estimates of radiosonde thermistor errors (1986)

Radiosonde temperature measurements are subject to errors, not the least of which is the effect of long- and short-wave radiation. Methods of adjusting the daytime temperatures to a nighttime equivalent are used by some analysis centers. Other than providing consistent observations for analysis this procedure does not provide a true correction. The literature discusses the problem of radiosonde temperature errors but it is not apparent what effort, if any, has been taken to quantify these errors. To accomplish the latter, radiosondes containing multiple thermistors with different coatings were flown at Goddard Space Flight Center/Wallops Flight Facility. The coatings employed had different spectral characteristics and, therefore, different adsorption and emissivity properties. Discrimination of the recorded temperatures enabled day and night correction values to be determined for the US standard white-coated rod thermistor. The correction magnitudes are given and a comparison of US measured temperatures before and after correction are compared with temperatures measured with the Vaisala radiosonde. The corrections are in the proper direction, day and night, and reduce day-night temperature differences to less than 0.5 C between surface and 30 hPa. The present uncorrected temperatures used with the Viz radiosonde have day-night differences that exceed 1 C at levels below 90 hPa. Additional measurements are planned to confirm these preliminary results and determine the solar elevation angle effect on the corrections. The technique used to obtain the corrections may also be used to recover a true absolute value and might be considered a valuable contribution to the meteorological community for use as a reference instrument.
Remote Non-Linear Video Editing (2000)

Remote non-linear video editing (RNLE) is a natural progression to the next generation of video editing technology. A paradigm shift, editors are no longer chained to the edit suite. RNLE operates a medium or low-bitrate mirror copy of broadcast-quality video clips. With this approach a low-resolution rough cut is created on a PC in a simple cut-and-paste interface. Sometime later, the resulting edit decision list (EDL) is transferred back to the edit suite for the finish cut and committed at high resolution suitable for broadcast as film or HDTV.
A Two-step TOA Estimation Method for IR-UWB Ranging Systems (2007)

To design a low-calculation and high-precision TOA estimation algorithm for IR-UWB ranging systems, a two-step TOA estimation method which jointly employs energy-detection (ED) and match- filtering (MF) is proposed. Based on analyzing the principles of the two-step method, it was pointed out that the success rate of DP block detection in the first step and the setting of MF-threshold-factor in the second step were the key issues that affect the performance of the method. Algorithm selection of the first step and setting of the energy integration interval, which are the two factors that affects the success rate of DP block detection, were discussed through simulations. The idea of DMR (DP to minimum energy sample ratio) based MF-threshold-factor selection was proposed. Results show that the proposed two-step method greatly outperforms the one-step energy-detection based non-coherent method, while largely decreases the computational complexity compared to the one-step match-filtering based coherent method.
Coenzyme Q<sub>10</sub> depletion and mitochondrial energy disturbances in rejection development in patients after heart transplantation (1999)

CoQ10 level and mitochondrial bioenergetic functions of EMB contribute to the explanation of pathobiochemical mechanisms of origin and development rejection of human transplanted heart. We suppose that estimation of EMB CoQ10 level could be used as a bioenergetic marker of rejection development in human transplanted heart. CoQ10 therapy could contribute to the prevention of rejection of the transplanted heart.
Interleaved scrambling technique: A novel low-power security layer for cache memories (2014)

Memory systems security has increased over the last decade due to the sensitive information which is stored in plain text. Device specific attacks, such as cold-boot and side-channel monitoring have been reported as being successfully in retrieving encryption and private keys from algorithms like AES and RSA. In this paper, we propose a new technique of securing the cache memories by scrambling the stored data that uses interleaved scrambling vectors which reduce the power consumption if compared to the standard scrambling technique. Dissemination rules for the retained data in the cache are employed, in order to make data unusable if retrieved successfully by any type of attack. The proposed technique is analyzed and evaluated from several points of views, including area overhead, power consumption and time performance.
Toward self-authenticable wearable devices (2015)

Wearable devices communicate among themselves, but they also need to communicate with remote entities through the Internet in order to share information. Given the sensitivity of the information handled, authentication is needed to allow data access only to authorized parties. However, the existing authentication solutions for wearable devices are limited to scenarios where direct communication between the authenticating parties is possible. With this in mind, we propose an authentication protocol that enables secure mutual end-to-end authentication between a wearable device and any other entity such as another wearable device, a personal device (mobile phone), a remote server, or a user's application. Our design uses a point-to-point authentication protocol (end-to-end authentication) regardless of whether other intermediate devices are trusted or not. Finally, we present a security evaluation of the proposed authentication protocol.
Biophilia: Does Visual Contact with Nature Impact on Health and Well-Being? (2009)

It is concluded that an environment devoid of Nature may act as a "discord", i.e., have a negative effect. While the term mismatch is used for any difference between present living conditions and the environment of evolutionary adaptation, discords are mismatches with a potentially undesirable impact on health or quality of life. The problem is partly due to the visual absence of plants, and may be ameliorated by adding elements of Nature, e.g., by creating parks, by offering a view through windows, and by potted plants. The conclusion is based on an evaluation of some fifty relevant empirical studies.
Conditions for growing Mycoplasma canadense and Mycoplasma verecundum in a serum-free medium (1990)

Mycoplasma canadense and Mycoplasma verecundum were cultured in a serum-free medium containing bovine serum albumin, cholesterol, oleic acid, and palmitic acid in order to avoid the addition of horse serum. Growth was detected by measurement of A640 and by colony formation. The level of growth attained in this medium was less than that obtained in the horse serum-supplemented media, but colonies retained their distinctive morphology.