gebhart/patrepeval huggingface dataset:
Thermal design of a heat exchanger for heating or cooling blood (1978)

Experimental data, and their correlation with predictions from theory, are presented for the thermal design of a countercurrent heat exchanger for heating or cooling blood. The thermal design considers the influence on the Nusselt number of blood and the heat exchanger effectiveness of variables such as the blood flow rate, tube diameter and length, and the thermal properties of blood. The data presented are compared with data from the literature and with predictions from theory. Insofar as the design of a blood heat exchanger is concerned, flowing blood can be considered a single-phase fluid. Results of the thermal design analysis are applicable to attempts to produce and control blood hyperthermia for applications such as the perfusion of tumours of the extremities, and to efforts to induce hypothermia during open-heart surgery.
Occupational Health Risks in Cardiac Catheterization Laboratory Workers (2016)

Health problems are more frequently observed in workers performing fluoroscopically guided cardiovascular procedures than in unexposed controls, raising the need to spread the culture of safety in the cath laboratory.
An Ultra-Broadband Single-Polarization Single-Mode Photonic Crystal Fibre (2005)

An ultra broadband single-polarization single-mode (SPSM) photonic crystal fibre (PCF) is proposed and analysed by using the plane-wave expansion method and the beam propagation method. Numerical results demonstrate that the SPSM wavelength region nearly at 580 nm in width from 1.46 μm to 2.04 μm is obtained in this PCF. The start wavelength of the SPSM region is close to the hole pitch, and the width of the SPSM region increases with the increasing hole pitch. Effects of dopant concentration on SPSM properties are investigated. The confinement loss decreases and the width of SPSM region widens slightly with the increasing dopant concentration. These results offer a new possibility of fabricating active doped SPSM PCFs with high performance that is crucial for improving the performance of linearly polarized fibre lasers.
Forecasting and Monitoring Water Cut Utilizing ESP Pump Discharge Pressures and Fluid PVT Analysis (2012)

Abstract In some fields, the ability to obtain reliable water production numbers is hard to do. Case in point is one Saudi Aramco offshore field. This particular field has all wells on electrical submersible pumps (ESPs) and has supervisory control and data acquisition recorded real time. Oftentimes the timing of getting the samples to shore, the lab, and to the desktop of the engineer takes a very long time. By modeling and using the pressure-volume-temperature (PVT) data from the reservoir and the pump discharge pressure of a well we can determine what water cut is necessary to match the surface flowing wellhead pressure (also taking into account frictional losses). Utilizing this method allows Saudi Aramco to monitor water production in the field and then to verify it with actual water samples whenever the data becomes available.
Short-term antioxidative responses of 15 microalgae exposed to excessive irradiance including ultraviolet radiation (2009)

Short-term photosensitivity and oxidative stress responses were compared for three groups of marine microalgae: Antarctic microalgae, temperate diatoms and temperate flagellates. In total, 15 low-light-acclimated species were exposed to simulated surface irradiance including ultraviolet radiation (SSI). Photosensitivity was assessed as the rate of recovery of Fv/Fm in the hours following SSI treatment. Before, during and after the SSI treatment, oxidative stress responses were assessed by following xanthophyll content and cycling, and activities of superoxide dismutase, ascorbate peroxidase and glutathione reductase, and glutathione redox status. When acclimated to low irradiance, antioxidant levels were not group specific. Superoxide dismutase activity was positively correlated with cell size, whereas in general, ascorbate peroxidase activity appeared to be lower and glutathione redox status appeared to be higher in the Antarctic than in the temperate species. After SSI exposure, the strong inhibition of PSII was followed by variable rates of recovery, although four species remained photosynthetically inactive. SSI tolerance appeared unrelated to geographic or taxonomic background, or to cell size. PSII recovery was enhanced in species with decreasing superoxide dismutase activity, glutathione redox status and increased xanthophyll cycle activity. We conclude that antioxidant responses are highly species specific and not related to the geographic or taxonomic background. Furthermore, xanthophyll cycling seems more important than antioxidants. Finally, it can be hypothesized that glutathione could function as a stress sensor and response regulator.
Study on polarizing visible light by subwavelength-period metal-stripe gratings (1999)

One method for influencing the polarization of light is the use of wire-grid polarizers. For the visible region, this type of element can be realized as a metal-stripe grating with periods less than the wavelength. We fabricate metal-stripe gratings with periods down to 190 nm in thin chromium layers of 35-nm thickness using electron-beam lithography and ion-beam etching. A detailed investigation of the influence of grating period and duty cycle on the polarization effect is carried out to verify the conformity of rigorous diffraction theory and experimental results. The comparison between the two indicates good performance. Polarization ratios of the order of 5 with transmission efficiencies of about 60% in TM polarization are obtained. The connection of the polarization effect real- izable and the fabrication technology used is discussed. © 1999 Society of Photo-Optical Instrumentation Engineers. (S0091-3286(99)00902-2)
Structural Study of Single {111}-Facetted CoSi<sub>2</sub>/Si Interface Incorporated in a Silicon-on-Insulator Metal-Oxide-Semiconductor-Field-Effect-Transistor (2001)

Metal-oxide-semiconductor field-effect transistors (MOSFETs) with single {111}-facetted silicide/silicon joints have been fabricated on silicon-on-insulator (SOI) substrates, using cobalt salicide. The interface structure is determined to be {111}Si//{111}CoSi 2 and <110>Si//<110>CoSi 2 by transmission electron microscopy. This report explains the formation mechanism of an atomically-flat interface, which involves the lateral growth of silicide in the channel direction of the MOSFET. This mechanism also enables the fabrication of a novel MOSFET structure where the SOI beneath the sidewall is silicided, which is expected to be a highly effective method for reducing the series resistance.
tRNA-Like Structures in Plant Viral RNAst+ (2014)

This chapter summarizes the structural and functional mimicry of tRNA by plant viral tRNA-like structures, and emphasizes how studies on these structures were innovative in the domain of RNA folding and beneficial to the better understanding of canonical tRNA aminoacylation. It also discusses current ideas about the biological significance of these aminoacylatable structures as well as other viral RNA sequences mimicking tRNA, during the life cycles of their carrier viruses.
A low-power, low-cost bipolar GPS receiver chip (1997)

A low-power, low-cost, integrated global positioning by satellite (GPS) receiver is described. It operates from a single 2.7-5.5 V supply with a nominal current consumption of only 27 mA. Furthermore, there is no need for expensive external surface acoustic wave (SAW) filters or a radio frequency voltage-controlled oscillator (VCO) module; only a low frequency reference clock (temperature compensated crystal oscillator (TCXO) or crystal), varactor diodes and standard passive elements are necessary for full operation. The chip is compatible with baseband chips requiring 1 fo (1.023 MHz) and 4 fo signal frequencies. The device has been integrated using a 15-GHz silicon bipolar technology.
Colorimetric Determination of Microgram Quantities of Thiosulfate and Tetrathionate (1975)

Abstract A simple and precise colorimetric method of determining thiosulfate and tetrathionate is described. It involves alkaline cyanolysis of thiosulfate S in the presence of Cu2+ or alkaline cyanolysis of tetrathionate S in the absence of Cu2+ and colorimetric determination of the thiocyanate formed as ferric thiocyanate complex. The method is rapid, sensitive, and accurate, and it permits determination of microgram quantities of thiosulfate or tetrathionate or both. The stability of the color formed is discussed, and the ratio of tetrathionate recovered in the presence and absence of Cu2+ is presented.
Morphologic and chromosomal study of a human retinal pigment epithelial cell line. (1994)

A spontaneously established cell line of human retinal pigment epithelium (RPE) was investigated morphologically and studied by chromosomal analysis. Even after the 100th passage, cultured cells maintained epithelioid morphology, and had numerous microvilli and membrane-bound small dense bodies which looked like lysosomes. Abundant rough-surfaced endoplasmic reticulum and mitochondria were observed in the cytoplasm, suggesting that these cells were metabolically active. The absence of pigmentation was noted from the 6th passage. In chromosomal analysis, a small number of 2nd passage cells showed karyotypic changes. At the 12th passage, a single cell line (44, 6-monosomy and Y-missing) was established. By the 100th passage, further karyotypic changes were noted (low tetraploid). The 6-monosomy might have played an important role in the establishment of this cell line. These results indicated that this cell line underwent some changes in chromosomal count and pigmentation but retained many original morphological characteristics. After further evaluation of its characteristics, this cell line, K-1034, could be useful experimental material in the study of the function of the human RPE.
Deep regional resistivity structure across the Battle Mountain-Eureka and Carlin trends, north-central Nevada (2001)

Magnetotelluric data collected along four, regional scale, southwest-to-northeast profiles show deep resistivity structures beneath the Battle Mountain-Eureka and Carlin gold trends in north-central Nevada, which appear consistent with tectonic breaks in the crust that possibly served as channels for hydrothermal fluids. It seems likely that gold deposits along these linear trends were, therefore, controlled by deep regional crustal fault systems. Two-dimensional resistivity modeling of the magnetotelluric data generally show resistive (30 to 1,000 ohm-m) crustal blocks broken by narrow, sub-vertical, two-dimensional, conductive (1 to 10 ohm-m) zones that are indicative of large-scale crustal fault zones. These inferred fault zones are regional in scale, trend southeast-to-northwest, and extend to mid-crustal (20 km) depths. The conductors are about 3 to 15 km wide, extend from 1 to 8 km below the surface to about 20 km depth, and show two-dimensional electrical structure with general north to northwesterly strikes. From connecting the locations of the conductors together, a single regional crustal fault zone can be inferred that is about 10 km wide within the upper crust and about 150-km long. It coincides with the Battle Mountain-Eureka mineral trend. The images also show regional changes in the resistive crust from north to south. Most of Reese River Valley and Boulder Valley are underlain by a thick (20 km) southwest-to-northeast section of conductive (1 to 10 ohm-m) rock, suggesting that hightemperature fluids are more pervasive in this area (Battle Mountain Heat-Flow High), which implies that the crust beneath these valleys is more fractured than in the areas surveyed to the south
High Radar Range Resolution with the Step Frequency Waveform (1994)

High range resolution can be obtained using a number of methods including ultra-wideband radar, intrapulse pulse compression, and super- resolution techniques. This thesis investigates the achievement of high radar range resolution by means of the step frequency waveform. The key advantage of the step frequency approach compared to other methods is the wide total bandwidth resulting in high range resolution while still maintaining a narrow instantaneous bandwidth which eases A/D sampling requirements. The effects of various waveform parameters on the high resolution range profile are determined for both noise and clutter limited environments. A novel technique is developed which enhances the resolution of moving targets in clutter and estimates the target velocity. This method consists of clutter cancellation followed by successive velocity compensations. Finally, design methods are developed to optimize system performance in a low PRF mode for both noise and clutter limited environments. Step frequency radar, Stepped-frequency waveform, High resolution radar, HRR.
Corrosion of Superheaters and Reheaters of Pulverized-Coal-Fired Boilers (1960)

Research Papers Corrosion of Superheaters and Reheaters of Pulverized-Coal-Fired Boilers Wharton Nelson, Wharton Nelson Kreisinger Development Laboratory, Combustion Engineering, Inc., Chattanooga, Tenn. Search for other works by this author on: This Site PubMed Google Scholar Carl Cain, Jr. Carl Cain, Jr. Kreisinger Development Laboratory, Combustion Engineering, Inc., Chattanooga, Tenn. Search for other works by this author on: This Site PubMed Google Scholar Author and Article Information Wharton Nelson Kreisinger Development Laboratory, Combustion Engineering, Inc., Chattanooga, Tenn. Carl Cain, Jr. Kreisinger Development Laboratory, Combustion Engineering, Inc., Chattanooga, Tenn. J. Eng. Power. Jul 1960, 82(3): 194-201 (8 pages) https://doi.org/10.1115/1.3672760 Published Online: July 1, 1960 Article history Received: August 13, 1959 Online: January 10, 2012
Adaptive image analysis for aerial surveillance (1999)

The authors describe a computer vision system that would automatically monitor its own performance and dynamically adapt to changing situations and requirements. Their approach is based on computational reflection and control system theory. An adaptive approach to aerial surveillance image analysis has these related benefits: the image analysis process can smoothly adapt to changes in image quality that would otherwise lead to abrupt changes in interpretation quality; appropriate resources can be selected for an image's needs in a way that allows the efficient use of resources; the system requires less tinkering to make it work; reflection allows the knowledge of the filters, task, and imaging environment to guide the automatic integration of filter results; the image bank provides a convenient mechanism for converting expert (photo interpreter) image analysis knowledge into a form usable for control and adaptation. However, this approach has two problems: filter implementation requires significant additional effort; and stability analysis is typically part of control system design, but generalizing stability analysis for image analysis might be difficult.
SPA: A Comprehensive Framework for Hybrid Solution Provisioning (2009)

With the emerging technologies like cloud computing and Internet scale data centers, radically simplified deployment approaches are critical for the success of the even more complicated solutions. Although there have been many traditional solution deployment approaches, each of them mainly focuses on particular software type or product. In this paper, we propose the next generation solution deployment paradigm as hybrid solution deployment, which enables fast solution deployment from bare metal mode to production mode based on todaypsilas state-of-the-art provisioning tools. Solution provisioning automation (SPA) framework is our practice of such deployment paradigm. In SPA, we use solution template to capture the solution components and their dependencies, which exposes only the necessary parameters for users to customize. Provisioning Requests are placed through reservations and scheduled globally for execution. The SPA engine receives provisioning requests from scheduler, interprets the solution template, manages provisioning tasks and performs runtime logging. We also present a real world case to demonstrate the effectiveness of our approach.
The Synthesis of Some Acidic Amino Acids Possessing Neuropharmacological Activity (1962)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThe Synthesis of Some Acidic Amino Acids Possessing Neuropharmacological ActivityJ. C. WatkinsCite this: J. Med. Chem. 1962, 5, 6, 1187–1199Publication Date (Print):November 1, 1962Publication History Published online1 May 2002Published inissue 1 November 1962https://pubs.acs.org/doi/10.1021/jm01241a010https://doi.org/10.1021/jm01241a010research-articleACS PublicationsRequest reuse permissionsArticle Views397Altmetric-Citations71LEARN 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 options Get e-Alerts
<i>In Vitro</i> Cleavage of an N- <i>ras</i> Messenger-Like RNA by a Ribozyme (1991)

A cDNA library was constructed in lambda gt10 from T-15 cells, a transformed mouse fibroblast line. The transforming N-ras sequence was recovered and subsequently used as a substrate for ribozyme cleavage. The design of the ribozyme was based on that of the hammerhead structure of the satellite tobacco ringspot autolytic processing sequence. Specificity to the N-ras substrate was conferred by 10 nucleotides homologous to the target site on the mRNA positioned on either side of the catalytic unit. The cleavage reaction was most efficient at higher temperatures but efficiency at lower temperatures was improved by the inclusion of urea in the reaction mixture. The ribozyme failed to cut an antisense ras sequence even at high temperature or in the presence of urea.
Acid mist formation in the electrowinning of copper (2007)

The heart is a principal target of thyroid hormone, and a reduction of cardiac thyroid hormone signaling is thought to play a role in pathological ventricular remodeling and the development of heart failure. Studies in various rodent models of heart disease have identified increased activity of cardiac type III deiodinase as a possible cause of diminished levels and action of thyroid hormone. Recent data indicate novel mechanisms underlying the induction of this thyroid hormone-degrading enzyme in the heart as well as post-transcriptional regulation of its expression by microRNAs. In addition, the relevance of diminished thyroid hormone signaling for cardiac remodeling is suggested to include miRNA-mediated effects on pathological signaling pathways. These and other recent studies are reviewed and discussed in the context of other processes and factors that have been implicated in the reduction of cardiac thyroid hormone signaling in heart failure.
Three‐layered membranes of collagen/hydroxyapatite and chitosan for guided bone regeneration (2008)

The purpose of this study was to design a novel hybrid membrane with optimized properties for guided bone regeneration (GBR). Both the top and bottom layers of the sandwich-structured membrane were composed of collagen containing 20 wt% hydroxyapatite (HA), while the middle layer was made of chitosan. The above three layers were formulated into an integral membrane from their respective slurries through a layer-by-layer filtration process. The phase and composition of the membrane were confirmed by FT-IR and XRD analyses. The observation of its morphology by SEM showed that the membrane had a porous structure and structural integrity. The chitosan layer ensured the high tensile strength and elastic modulus of the membrane, while the presence of the collagen/HA composite layers endowed it with good flexibility and bioactivity. These results suggest that the integrated membrane prepared in this study would have the potential for use as a GBR material.
Correcting Flicker in Color Motion Pictures (2005)

Despite active research work in the field of flicker correction, all the published work to date only deals with black and white motion pictures. In this paper, we will take flicker correction into the color space and propose a method to solve the flicker correction problem in color motion pictures. The method is based on a simplified flicker parameter model developed by us in [5] which was originally used for flicker correction in black and white motion pictures. Test results show that the proposed method is very effective in correcting flicker-damaged color films.
Expression and Characterization of Anti-NCA-95 scFv (CEA 79 scFv) in a Prokaryotic Expression Vector Modified to Contain a Sfi I and Not I Site (1999)

The CEA 79 antibody has been used in bone marrow scintigraphy for the differential diagnosis of skeletal tumors and the evaluation of the bone marrow status of patients with various hematological disorders. The specific localization of radio-labeled CEA 79 antibody in bone marrow depends on its reactivity with NCA-95 (nonspecific cross-reacting antigen-95) present on the surface and in the cytosol of human granulocytes and myelopoietic cells. To make a CEA 79 scFv molecule that would be less immunogenic and more penetrating than the intact mouse immunoglobulin, we constructed a pRSET Sfi I/Not I expression vector. The scFv gene was then excised from a pCANTAB 5 E phage display vector by digestion with Sfi I and Not I and inserted into the pRSET Sfi I/Not I expression vector. Upon transformation of a BL21(DE3)pLysS strain of E. coli, CEA 79 scFv became expressed in inclusion bodies requiring a renaturation process for solubilization. The final yield of CEA 79 scFv was 5 mg per a liter of culture. The refolded CEA 79 scFv exhibited an affinity (Kd = 2.1 x 10(-9) M) equivalent to that of the original CEA 79 antibody (K(d) = 3.3 x 10(-9) M) and the same immunoreactivity to CEA and NCA-95 in Western blots and in immunohistochemical staining experiments.
Patterns of Activity in the Categorical Representations of Objects (2003)

Object perception has been a subject of extensive fMRI studies in recent years. Yet the nature of the cortical representation of objects in the human brain remains controversial. Analyses of fMRI data have traditionally focused on the activation of individual voxels associated with presentation of various stimuli. The current analysis approaches functional imaging data as collective information about the stimulus. Linking activity in the brain to a stimulus is treated as a pattern-classification problem. Linear discriminant analysis was used to reanalyze a set of data originally published by Ishai et al. (2000), available from the fMRIDC (accession no. 2-2000-1113D). Results of the new analysis reveal that patterns of activity that distinguish one category of objects from other categories are largely independent of one another, both in terms of the activity and spatial overlap. The information used to detect objects from phase-scrambled control stimuli is not essential in distinguishing one object category from another. Furthermore, performing an object-matching task during the scan significantly improved the ability to predict objects from controls, but had minimal effect on object classification, suggesting that the task-based attentional benefit was non-specific to object categories.