gebhart/patrepeval huggingface dataset:
North Sea Experience With Aluminum Drillpipe (1989)

ABSTRACT Aluminum drillpipe is a speciality product that has been recommended for extended reach directional drilling operations. However, only limited operational experience has been reported from offshore drilling applications. In this paper the operational experience of using a string of 5 in. (127 mm) aluminum drillpipe on a North Sea platform for a period of 2-1/2 years is presented. After plans to drill extended reach wells from the platform were shelved the aluminum drillpipe was taken out of service. The operational problems of using the aluminum drillpipe were found to outweigh the benefits when used to drill the type of directional wells described in this paper. INTRODUCTION In 1971 Mobil North Sea Limited became the operator of licence block 9/13 in the UK sector of the North Sea. The block is located 215 miles (346 km) northeast of Aberdeen, Scotland. The Beryl field was discovered in block 9/13 in 1972 in water depths from 350 to 400 ft (107 to 122 m). The Beryl A production platform, a concrete gravity structure equipped with two drilling rigs, was installed in 1975 and oil production began in 1976. The Beryl B production platform, a steel jacket structure equipped with a single drilling rig, was installed over a drilling template in 1983 and oil production began in 1984. Six wells had been pre-drilled through the 21 slot Beryl B drilling template so the first job of the platform drilling rig was to tie-back and complete these wells. Aluminum drillpipe and a top drive were incorporated into the Beryl B drilling rig as a result of recommendations from a joint industry Extended Reach Drilling Project (ERD) 1,2. This paper presents information on: selection of the aluminum drillpipe, rig modifications required, establishing the operating limits, operational benefits, operational problems and steps taken to extent the service life. A comparison with steel drillpipe is used to provide a frame of reference and the results from a drillstring simulator are used to quantify the surface torque reduction achieved in an example Beryl B well. The aluminum drillpipe was used during a series of casing repair workovers on the pre-drilled wells and for drilling five directional wells during the period mid May 1984 to mid November 1986, as shown by the operations sequence of Fig. 1. The pipe was then taken out of service for a full inspection and found to require extensive toofjoint rebuilding that could not be done in the U.K.. Pending the drilling of any long reach wells that required the special attributes of the aluminum drillpipe, the decision was made to store the pipe and to replace it with a string of steel drillpipe for continuing operations on Beryl B. (A steel drillstring was available at no additional cost as drilling operations on the Beryl A platform had been cut down to employing only one of the two rigs.)
In Vivo Effects of Protease Inhibitors on Chickens with Hereditary Muscular Dystrophy (1981)

Beginning on day 4 ex ovo, and every 3 d thereafter, genetically dystrophic Line 413 chickens were given intraperitoneal injections (4 mg/kg body wt) of a protease inhibitor, leupeptin, pepstatin, or antipain. Experimental chickens received protease inhibitors dissolved in a water:ethanol:dimethyl sulfoxide solution (50:40:10, vol:vol:vol). Control untreated animals received diluent injections. Untreated dystrophic chickens typically reach around day 30 ex ovo a maximum ability to right from the supine position in a standardized functional test for muscle weakness. After day 30 ex ovo, the dystrophic chickens are found to decline progressively in their ability to right, compared with normal, nondystrophic controls, which have an unimpaired ability to right. Concomitantly, dystrophic chickens exhibit characteristically high levels of plasma creatine phosphokinase enzyme activity. In addition, an increased frequency of degenerating, regenerating, and vacuolated myofibers, and inflammatory cells appear in the affected pectoralis major muscles from the dystrophic chicken. Throughout the duration of the trial, there was no major enhancement in the functional righting ability of dystrophic chickens receiving any one of the protease inhibitors tested. However, there was a significant reduction in the abnormally high levels of plasma creatine phosphokinase in the treated chickens. Also, there was an apparent reduction in the mean number of vacuolated fibers in the pectoralis muscle from the protease inhibitor-treated birds. No significant reductions were observed in the relative frequency of degenerating and regenerating myofibers or inflammatory cells. In addition to the plasma creatine phosphokinase decrease, however, therapeutic benefit was seen in 31.0, 30.5, and 14.8% increases in the wet weight (and total noncollagen protein) of pectoralis muscle from dystrophic chickens receiving leupeptin, pepstatin or antipain, respectively.
Processing relationships in YBa/sub 2/Cu/sub 3/O/sub 7-x/ superconductors (1987)

Samples of YBa/sub 2/Cu/sub 3/O/sub 7-x/ were prepared by solid state reaction of Y/sub 2/O/sub 3/, BaO/sub 2/, and CuO powders mixed in stoichiometric proportions. Powders reacted at 900/sup 0/C-925/sup 0/C in air were pressed at 35 MPa into rectangular bars and sintered at 950/sup 0/C in air for six hours. Slow cooling at 50/sup 0/C/hour promoted complete transformation to the orthorhombic structure. The effects of subsequent oxidation processing on superconducting properties were also investigated. Oxidation anneals at one atmosphere pressure in flowing O/sub 2/ over the temperature range from 300 to 550/sup 0/C were performed. Results indicate that oxidation at 450/sup 0/C optimized the superconducting transition temperature at 91K with a 2-degree transition width. Subsequent high-pressure oxidation (2000 psi O/sub 2/) at 200/sup 0/C for one week significantly degraded the superconducting characteristics. Results based on iodometric titration measurements and thermogravimetric analysis suggest that the copper valency is about 2.3 and oxygen stoichiometry is 6.94 (x = 0.06) in samples processed to optimize superconducting properties. 11 refs., 3 figs.
Paleolacustrine arenites in the Holleford meteorite crater, Ontario (1968)

The Holleford meteorite crater is about 20 miles northwest of Kingston, Ontario. It forms a circular structural depression 1.46 miles in diameter and about 950 ft deep. It is filled by sedimentary rocks of Late Proterozoic and Early Paleozoic age with a maximum thickness of 850 ft.The rocks of this section and the polymictic breccia underlying them have been divided into seven lithic units. The bulk of the sequence consists of microlaminated calcareous quartz arenites with lesser amounts of argillaceous and carbonaceous material. These arenites are unlike any rocks found locally outside the crater. They are overlain by carbonates and shales of the Black River Group with apparent unconformity.The origin postulated for the arenite sequence in the crater is a Late Proterozoic or Early Paleozoic fresh-water lake. This lake existed in a subtropical to temperate climate and only rarely froze over. It is probable that it was meromictic for part of its existence, but later became holomictic.Later compaction of the underlying breccias and the paleolacustrine arenites formed a shallow structural basin in the Black River carbonates.
Sterically Stabilized <i>p</i>‐Quinodimethanes by Nucleophilic Aromatic Substitution (2006)

Abstract Triarylmethyl cations with a sterically shielded cationic center react with selected C‐ and N‐nucleophiles under nucleophilic aromatic substitution. The resulting dipolar p ‐quinodimethanes represent highly functionalized extended π systems. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
Ti-LiNbO/sub 3/ waveguide serrodyne modulator with ultrahigh sideband suppression for fiber optic gyroscopes (1989)

The theoretical and experimental performance of guided-wave serrodyne phase modulators formed through indiffusion of Ti and LiNbO/sub 3/ substrates is discussed. Basic serrodyne theory is reviewed and a modified model of the serrodyne modulator incorporating effects of polarization, light-source coherence, device response time, and device-related intensity modulation is developed. Sources of modulation errors and harmonic suppression limitations imposed by each are identified. Experimental results showing greater than 50-dB suppression to 200-kHz ramp frequency and correspondence to expected limitations are then presented. Good agreement between theory and experiment is found. The results indicate that very high suppression, greater than 60 dB, at frequencies to several hundred kilohertz are possible with Ti-LiNbO/sub 3/ waveguide devices.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
[Pharmacotherapy in bipolar disorder]. (1999)

In the treatment of manic depressive disorders a distinction is made between acute treatment (combating the mania and the depression) and the maintenance treatment (prevention of subsequent episodes). In both forms of therapy the mood stabilizers are crucial: lithium carbonate, the anticonvulsants carbamazepine and valproic acid. The efficacy of lithium carbonate has been demonstrated in the acute treatment of mania and depression as well as in the maintenance treatment. Carbamazepine may be regarded as a good alternative, especially for the acute treatment of mania and for the maintenance treatment. Valproic acid so far has only be demonstrated to be efficacious in the acute treatment of mania. Monotherapy with a mood stabilizer is a first option, but its insufficient efficacy in many patients nevertheless necessitates a combined treatment, with two or even three mood stabilizers or with a mood stabilizer and other psychoactive agents. In the acute treatment of mania, antipsychotics are indicated in case of a severe or psychotic mania and benzodiazepines in severe disorders of sleep or restlessness. Antidepressants have a role as comedication in the acute treatment of the bipolar depression.
Peer Support and Consultation Project for Interpreters: A Model for Supporting the Well-Being of Interpreters who Practice in Mental Health Settings (2011)

The interpreter who works alongside mental health professionals may have equal vulnerability to occupational stress but lack adequate training in order to recognize it or take necessary steps to offset negative impacts. This paper presents a model of intervention known as Peer Support and Consultation Project for Interpreters (PSCPI) working in mental health settings. It describes a study that was designed to determine whether or not PSCPI meetings would influence participants’ immediate sense of satisfaction with several qualities thought to be consistent with developing resilience to work- related stress reactions. The findings of this study indicate a strong positive relationship between attendance at a PSCPI group meeting and increased positive perception of being part of a productive and supportive professional network, as well as having a variety of strategies for self-care and self- management.
Contrasts in the surface activity of polyoxypropylene and polyoxybutylene‐based block copolymer surfactants (1996)

Abstract Previous studies have shown that polyoxybutylene surfactant hydrophobes are less polar than polyoxypropylene hydrophobes. Polyoxyalkylene hydrophobes can be modified by ethoxylation to give terminal polyoxyethylene block hydrophilic groups. Polyoxybutylene/polyoxyethylene copolymer surfactants exhibit differentiated interfacial tensions, and wetting and foaming properties when compared to structurally equivalent polyoxypropylene/polyoxyethylene copolymers. There have been no reported comparisons, however, of polyoxybutylene/polyoxyethylene copolymers and polyoxypropylene/polyoxyethylene analogues in terms of fundamental parameters, such as critical micelle concentration, area per molecule at the interface, efficiency, and effectiveness. In one phase of this work, four polyoxybutylene/polyoxyethylene block copolymer surfactants were compared to structurally analogous polyoxypropylene/polyoxyethylene materials. Findings showed that polyoxybutylene/polyoxyethylene copolymers exhibited enhanced cotton wetting and lower surface and interfacial tensions compared to polyoxypropylene/polyoxyethylene analogues. Polyoxybutylene‐based surfactants were typically one order of magnitude better in their ability to reduce surface tension at interface saturation. Polyoxybutylene/polyoxyethylene copolymers pack more efficiently at the interface, as evidenced by a smaller area per molecule at the interface. Critical micelle concentration values were also lower for polyoxybutylene/polyoxyethylene copolymers. A second phase of experiments focused on the surface activity of polyoxypropylene/polyoxyethylene triblock copolymers with higher molecular weight hydrophobes. Enhanced surface activity was found when compared to lower‐molecular weight polyoxypropylene/polyoxyethylene copolymers.
A Fair Comparison of VM Placement Heuristics and a More Effective Solution (2014)

Data center optimization, mainly through virtual machine (VM) placement, has received considerable attention in the past years. A lot of heuristics have been proposed to give quick and reasonably good solutions to this problem. However it is difficult to compare them as they use different datasets, while the distribution of resources in the datasets has a big impact on the results. In this paper we propose the first benchmark for VM placement heuristics and we define a novel heuristic. Our benchmark is inspired from a real data center and explores different possible demographics of data centers, which makes it suitable when comparing the behaviour of heuristics. Our new algorithm, RBP, outperforms the state-of-the-art heuristics and provides close to optimal results quickly.
Narrow linewidth laterally coupled 155 μm AlGaInAs/InP distributed feedback lasers integrated with a curved tapered semiconductor optical amplifier (2012)

We present a laterally coupled 1.55 μm AlGaInAs/InP distributed feedback laser monolithically integrated with a curved tapered optical amplifier, providing an output power of 210 mW with single transverse and longitudinal mode operation exhibiting a record low linewidth of 64 kHz.
Radios Get Smart (2007)

If radios could somehow use a portion of the broadcast TV spectrum without causing interference, cellular telephony and other important services would be able to exploit those bands. With more room to operate, cellphone calls would be a lot cheaper, as would mobile Internet access, which would get faster as well. Your handset would be able to pull in audio and visual entertainment from all over the globe, and videophoning would finally be a reality. To manage such feats, cellphone handsets would have to be able to shift their frequency of operation on demand and without packing in lots of extra hardware. Telecommunications engineers have a name for that goal software-defined radio. And the more visionary among them see it as a stepping-stone to an even more distant ideal. Their goal is a wireless device that is smart enough to analyze the radio environment and decide for itself the best spectral band and protocol to reach whatever base station it needs to communicate with, at the lowest level of power consumption. The name for such remarkable systems is "cognitive radios," and some are already emerging from the laboratory to be field-tested by the US military, which has long sponsored research in the area
Bioluminescence & chemiluminescence : progress and perspectives : ISBC 2004 (2005)

Bioluminescence and Mating Behavior in Pony Fish, Leiognathus nuchalis (N Azuma et al.) Importance of Firefly Luciferase C-terminal Domain in Binding of Luciferyl-Adenylate (K Ayabe et al.) Effect of Oxygen and Hydrogen Ion on the Modulation of the Bioluminescence from Luminous Bacteria (H Karatani et al.) Superoxide or Singlet Oxygen: The Chemiluminescence of Cypridina Luciferin Analogues in Photodynamic Solutions (M Banci ova & I `nyrychova) On the Role of Singlet Oxygen Dimol in Chemiluminescence of Dioxirane Reactions (W Adam et al.) On the CIEEL Mechanism of Triggerable Dioxetanes: Does the Electron Jump or Is It Charge Transfer? (W Adam & A V Trofimov) Single-Molecule Imaging of Protein in Living Cells by Pin-Fiber Video-Microscopy (Y Hirakawa et al.) Construction of a Novel Bioluminescence Bacterial Biosensor for Real-Time Monitoring of Cytotoxic Drugs Activity (H M Alloush et al.) The Chemiluminescent Measurement of the Black and Green Tea Antioxidant Capacity and the Comparison with Their Antimicrobial Activity (M Bancirova & I Onyrychova) Use of Bioluminescent Salmonella typhimurium DT104 to Monitor Uptake and Intracellular Survival Within a Human Cell-Line (J E Angell et al.) Tandem Bioluminescent Enzyme Immunoassay for BDNF and NT-4/5 (S Akahane et al.) Use of the Peroxyoxalate Chemiluminescent Reaction in Acetone in the Presence of Nile Red for the Analysis of Glucose (P Castro-Hartmann et al.) A New Assay for Determining Pyrophosphate Using Pyruvate Phosphate Dikinase and Its Application to DNA Analysis (H Arakawa et al.).
Planar Microstrip-To-Waveguide Transition in Millimeter-Wave Band (2013)

Many kind of millimeter-wave automotive radars have been developed [1], [2]. The microstrip antenna becomes a good candidate when radar sensors are widely used in vehicle due to its advantages of low cost and low profile. Generally microstrip antennas are placed on the surface of a radar sensor and are connected to millimeter-wave circuits inside of the sensor via waveguides. Therefore, transitions from waveguide to microstrip line are required, as shown in Figure 1.
The use and evaluation of yield models in integrated circuit manufacturing (1990)

The development and refinement of net-die-per-wafer yield models during the past 25 years are reviewed, and the models are tested for accuracy by comparison with actual yield data from seven separate chip companies. Depending on chip size, the more accurate models are the Poisson and the negative binomial. Several models for line yields in wafer fabrication are also covered. For predicting yields of larger-die-area very large-scale integration, the negative binomial model is the more accurate, but its use many require experimental determination of alpha, sometimes called the cluster parameter, versus chip area for the particular process and factory environment of interest. How an Insystems holographic wafer inspection machine can aid this process is described. Financial payback calculations for cleaner processing machines and experience curve effects on yields are also discussed.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Effects of abnormal base ionizations on magnesium binding to transfer ribonucleic acid as studied by a fluorescent probe (1974)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTEffects of abnormal base ionizations on magnesium binding to transfer ribonucleic acid as studied by a fluorescent probeDennis C. Lynch and Paul R. SchimmelCite this: Biochemistry 1974, 13, 9, 1852–1861Publication Date (Print):April 1, 1974Publication History Published online1 May 2002Published inissue 1 April 1974https://pubs.acs.org/doi/10.1021/bi00706a013https://doi.org/10.1021/bi00706a013research-articleACS PublicationsRequest reuse permissionsArticle Views24Altmetric-Citations18LEARN 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
Glial fibrillary acidic protein as a brain injury biomarker in children undergoing extracorporeal membrane oxygenation* (2010)

High glial fibrillary acidic protein during extracorporeal membrane oxygenation is significantly associated with acute brain injury and death. Brain injury biomarkers may aid in outcome prediction and neurologic monitoring of patients on extracorporeal membrane oxygenation to improve outcomes and benchmark new therapies.
Handbook of Engineering Electromagnetics (2004)

PREFACE FUNDAMENTALS OF ENGINEERING ELECTROMAGNETICS REVISITED N. Narayana Rao APPLIED ELECTROSTATICS Mark N. Horenstein MAGNETOSTATICS Milica Popovi'c, Branko D. Popovi'c, and Zoya Popovi'c ELECTROMAGNETIC INDUCTION Milica Popovi'c, Branko D. Popovi'c, and Zoya Popovi'c WAVE PROPAGATION Mohammad Kolbehdari and Matthew N.O. Sadiku TRANSMISSION LINES Andreas Weisshaar WAVEGUIDES AND RESONATORS Kenneth R. Demarest ANTENNAS: FUNDAMENTALS David Thiel ANTENNAS: REPRESENTATIVE TYPES David R. Jackson, Jeffrey T. Williams, and Donald R. Wilton ELECTROMAGNETIC COMPATIBILITY Christos Christopoulos RADAR Levent Sevgi WIRELESS COMMUNICATION SYSTEMS Nathan Blaunstein SATELLITE COMMUNICATION SYSTEMS Matthew N.O. Sadiku OPTICAL COMMUNICATIONS Joseph C. Palais NUMERICAL TECHNIQUES Randy L. Haupt BIOLOGICAL EFFECTS OF ELECTROMAGNETIC FIELDS Riadh Habash BIOMEDICAL APPLICATIONS OF ELECTROMAGNETIC ENGINEERING James C. Lin MEASUREMENT TECHNIQUES FOR THE ELECTROMAGNETIC CHARACTERIZATION OF BIOLOGICAL MATERIALS Mohammad-Reza Tofighi and Afshin Daryoush APPENDIX A: SOME USEFUL CONSTANTS APPENDIX B: SOME UNITS AND CONVERSIONS APPENDIX C: REVIEW OF VECTOR ANALYSIS AND COORDINATE SYSTEMS INDEX
Evidence supporting the conceptual framework of cancer chemoprevention in canines (2016)

As with human beings, dogs suffer from the consequences of cancer. We investigated the potential of a formulation comprised of resveratrol, ellagic acid, genistein, curcumin and quercetin to modulate biomarkers indicative of disease prevention. Dog biscuits were evaluated for palatability and ability to deliver the chemopreventive agents. The extent of endogenous DNA damage in peripheral blood lymphocytes from dogs given the dietary supplement or placebo showed no change. However, H2O2-inducible DNA damage was significantly decreased after consumption of the supplement. The expression of 11 of 84 genes related to oxidative stress was altered. Hematological parameters remained in the reference range. The concept of chemoprevention for the explicit benefit of the canine is compelling since dogs are an important part of our culture. Our results establish a proof-of-principle and provide a framework for improving the health and well-being of "man's best friend".
Technical perspective (2008)

Internet services are already significant forces in searching, retail purchases, music downloads, and auctions. One vision of 21st century IT is that most users will be accessing such services over a descendant of the cell phone rather than running shrink-wrapped software on a descendant of the PC.