gebhart/patrepeval huggingface dataset:
Simulation and Optimization of Oxy-Fuel Gas Cycle Power Plant with CO2 Capture (2011)

This paper presents a steady-state simulation study of oxy-fuel gas cycle power plant with CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> amine absorption process using process software Aspen HYSYS™. The oxy-fuel gas cycle power plant studied was decomposed to four units: the air separation unit (ASU), the gas turbine cycle, the heat recovery steam generator (HRSG) and the CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> capture process. Based on the steady-state simulations, the energy performance of the process investigated under different operating conditions. An optimal net efficiency was obtained at about 60% oxygen purity under 90% CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> recovery rate and 0.3 CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> lean loading in the CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> amine absorption. The CO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> capture process mainly affects net efficiency of power plant in low oxygen purity, and the power requirement of ASU is main factor in high oxygen purity.
Electric micromotors on silicon (1992)

A review of micromotor technology will be presented and micromotor design, fabrication, and operational characteristics will be discussed. Micromotors are submillimeter actuators capable of unrestrained motion in at least one degree of freedom. The micromotors described in this presentation are actuated by attractive electrostatic forces. For micromotor fabrication, silicon surface micromachining is used to create freely moving parts held to the surface of the silicon wafer with bearings. In this process, heavily phosphorus-doped polysilicon is used for the structural parts, deposited silicon dioxide is used for the scarificial layers, and silicon-rich silicon nitride is used for electrical isolation. Layers of the structural and sacrificial materials are deposited and patterned in a manner that the structural polysilicon parts (e.g., the rotor) are appropriately encapsulated by the sacrificial oxide layers. At the final stage of fabrication, the sacrificial oxide is selectively removed in hydrofluoric acid to free the micromotor structural parts. Operational rotary, variable-capacitance, salient-pole, and harmonic (or wobble) side-drive micromotors have been fabricated with two different bearing designs and typical diameters of 100- to 130-μm, rotor/stator gaps of 1.5 μm, and a rotor thickness of 2.2 μm. Electrical operation of the salient-pole and harmonic side-drive micromotors have been demonstrated in a number of gaseous environments including room air, oxygen, argon, and nitrogen, and in insulating liquids such as silicone lubricating oil and deionized water. Minimum operating voltages differ with the environment but can be as low as 30 V. Extended operation (i.e., beyond 100 h) of the micromotors in gaseous environments and in silicone lubricating oil has been demonstrated. Operational speeds of up to 15 000 and 1000 rpm have been achieved in gaseous environments for the salient-pole and harmonic side-drive micromotors, respectively. In silicone lubricating oil, the maximum operation speed has been below 125 rpm for both micromotor types. [The presentation reflects the results of a collaborative micromotor research program with Professor J. H. Lang and Professor S. D. Senturia of MIT. This research program is funded by the National Science Foundation.]
Fibroblasts Express RANKL and Support Osteoclastogenesis in a COX-2-Dependent Manner After Stimulation With Titanium Particles (2005)

Fibroblasts respond directly to titanium particles and increase RANKL expression through a COX-2/PGE2/EP4/PKA signaling pathway. Thus, the synovial fibroblast is important mediator of osteolysis and target for therapeutic strategies.
급속 응고법으로 제조된 Cu90Fe10 합금 리본의 자기적 특성과 미세구조 (2006)

By employing a rapidly solidified method and atmospheric annealing at 450℃-1hr, which is economical process, the granular ribbons of Cu90Fe10 with thickness of 20㎛were manufactured successfully. The magnetic property and microstructure evolution with annealing have been investigated. Saturation magnetization increased as annealing time increased, but no magnetoresistance effect observed at the applied field of 5000 O e. The surface oxidation layer of the ribbons increased as annealing time increased. TEM revealed that 30 nm Fe-rich cluster were foamed with 30 nm-pitch, which lessens the spin exchange interaction. Our result implies that more Fe contents and preventing surface oxidation be required to realize the granular magnetoresistance effect in CuFe ribbons.
IgA Nephropathy (2002)

IgA nephropathy is the most common form of primary glomerulonephritis in the world and is also the most common cause of end-stage renal disease in patients with primary glomerulopathy. This article discusses current views on the pathogenesis, pathophysiology, clinical course, and treatment of this important glomerular disease. Although clinical trials have suggested that therapies such as glucocorticoids, n–3 fatty acids, and angiotensin-converting–enzyme inhibitors are efficacious, more definitive treatment is being sought.
Vertical cross-point resistance change memory for ultra-high density non-volatile memory applications (2006)

Vertically defined resistance change memory cells for the vertical cross-point architecture (VCPA) as a high density non-volatile memory application are successfully demonstrated with a NiO switching layer. They showed both unipolar and bipolar switching mode. Several issues in realization for VCPA and their possible solutions are discussed.
<i>Plasmodium falciparum</i>Merozoite Surface Protein 3 Is a Target of Allele‐Specific Immunity and Alleles Are Maintained by Natural Selection (2006)

A vaccine incorporating both major allelic types of this promising candidate antigen could be particularly useful for induction of protective immunity in infants and young children.
Protective effect of resveratrol and vitamin E against ethanol-induced oxidative damage in mice: biochemical and immunological basis. (2010)

The metabolism of ethanol gives rise to the generation of excess amounts of reactive oxygen species and is also associated with immune dysfunction. We examined the efficacy of resveratrol and vitamin E on the immunomodulatory activity and vascular function in mice with liver abnormalities induced by chronic ethanol consumption by measuring the protein, liver-specific transaminase enzymes, antioxidant enzymes and non-enzymes such as reduced glutathione (GSH) content, thiobarbituric acid reactive substance (TBARS) level, nitrite level, and activities of superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR) and glutathione peroxidase (GPx) and glutathione-S-transferase (GST), and cytokines such as interleukin (IL)-2, IL-4, IL-10, tumor necrosis factor (TNF)-alpha, gamma interferon (IFN-gamma), vascular endothelial growth factor (VEGF)-A and transforming growth factor (TGF)-beta1 in mice blood. Ethanol (1.6 g/kg body wt/day) exposure for 12 wks significantly increased TBARS and nitrite levels and GST activity, and significantly decreased GSH content and the activities of SOD, CAT, GR and GPx in whole blood hemolyzate of 8-10 wks-old male BALB/c mice (weighing 20-30 g). Ethanol exposure also elevated the activities of transaminase enzymes (AST and ALT), IL-10, TNF-alpha, IFN-gamma, VEGF-A and TGF-beta1, while decreasing the albumin concentration and IL-4 activity in the serum. Both resveratrol (5 mg kg(-1) day(-1)) and vitamin E (80 mg kg(-1) day(-1)) treatment significantly reduced AST, ALT, GST, IL-10, TNF-alpha, IFN-gamma, VEGF-A and TGF-beta1 activities and levels of TBARS and nitrite, and elevated albumin content, GSH level and activities of SOD, CAT, GR and GPx, compared to ethanol-treated group. Thus, results from the study demonstrated that both resveratrol (5 mg kg(-1) day(-1)) and vitamin E (80 mg kg(-1) day(-1)) can effectively ameliorate ethanol (1.6 g kg(-1) day(-1))-induced oxidative challenges, immunomodulatory activity and angiogenesis processes.
Multimodal imaging of vascular network and blood microcirculation by optical diagnostic techniques (2011)

We present a multimodal optical diagnostic approach for simultaneous non-invasive in vivo imaging of blood and lymphatic microvessels, utilising a combined use of fluorescence intravital microscopy and a method of dynamic light scattering. This approach makes it possible to renounce the use of fluorescent markers for visualisation of blood vessels and, therefore, significantly (tenfold) reduce the toxicity of the technique and minimise side effects caused by the use of contrast fluorescent markers. We demonstrate that along with the ability to obtain images of lymph and blood microvessels with a high spatial resolution, current multimodal approach allows one to observe in real time permeability of blood vessels. This technique appears to be promising in physiology studies of blood vessels, and especially in the study of peripheral cardiovascular system in vivo.
Regulation of Endothelial Nitric-oxide Synthase during Hypoxia (1996)

The mechanism by which nitric-oxide (NO) production increases during hypoxia is unknown. To explore the effect of hypoxia upon endothelial nitric-oxide synthase (ecNOS) activity and expression, we exposed bovine aortic endothelial cells (BAEC) to hypoxia (1% O2) for 0-24 h and measured levels of ecNOS mRNA, protein, and activity. The amount of ecNOS mRNA increases to more than twice the basal level after 6 h of hypoxia. Incubation of BAEC with actinomycin D during hypoxia prevents this increase, demonstrating that higher levels of mRNA observed during hypoxia are due to increased synthesis, not to increased stability of ecNOS mRNA. Levels of ecNOS protein increase throughout 24 h of hypoxia to more than twice normoxic levels. Although ecNOS expression increases within 2 h of hypoxia, total activity remains unchanged. To explore the transcriptional regulation of ecNOS, we constructed a reporter plasmid containing the ecNOS promoter region upstream of the luc gene and transfected this reporter plasmid into BAEC. In this system, hypoxia induces a linear increase over time in the expression of luciferase driven by the ecNOS promoter. It is concluded that hypoxia induces an increase in transcription of ecNOS in endothelial cells, activating the regulatory region of ecNOS by undefined transcription factors.
Diastolic Murmur Caused by Coronary Artery Stenosis (1970)

Two patients had diastolic murmur caused by coronary artery stenosis. In both the diastolic murmur was associated with a severe, localized narrowing of the proximal left anterior descending artery demonstrated by selective coronary cinearteriography. The murmur disappeared after acute myocardial infarction involving the area of distribution by the stenosed coronary artery. Although mid-diastolic timing of the murmur combined with an accentuated first sound may lead to an erroneous diagnosis of mitral stenosis, several distinguishing features, including its response to amyl nitrite inhalation, help to differentiate. A stenosed coronary artery is a cause of diastolic murmur.
Textbook of Histology (1950)

Journal Article Textbook of Histology Get access Textbook of Histology. By Nonidez José F.D.Sc., Late Professor of Anatomy, Cornell University and Professor of Microscopic Anatomy, University of Georgia; and William F. Windle, Ph.D., Sc.D., Professor of Anatomy, University of Pennsylvania. 456 pp., 287 figs. $6.75. New York: McGraw-Hill Book Company, Inc., 1949.L’Organisation des Os. By Lacroix P., Professor of Medicine, University of Louvain. 230 pp., 87 figs. 900 fr. Paris: Masson et Cie., 1949.Histology and Histopathology of the Eye and its Adnexa. By Sommers I. G.M.D., Assistant Professor of Ophthalmology, College of Medical Evangelists; Medical Officer (E.E.N.T.), U. S. Public Health Service, Los Angeles, California. 764 pp., 69 figs. $12.00. New York: Grune and Stratton, 1949. Parker Heath Parker Heath Boston Search for other works by this author on: Oxford Academic Google Scholar American Journal of Clinical Pathology, Volume 20, Issue 6, 1 July 1950, Page 582, https://doi.org/10.1093/ajcp/20.6.582 Published: 01 July 1950
An Introduction to Meteosat Second Generation (MSG) (2002)

Meteosat Second Generation (MSG), the new generation of European geostationary meteorological satellites, has greatly enhanced capabilities, especially for observing rapidly changing weather phenomena and for the derivation of quantitative products.
All eight possible mono-.BETA.-D-glucosides of validoxylamine A. II. Biological activites. (1991)

The biological activities of all eight possible mono-beta-D-glucosides of validoxylamine A against Rhizoctonia solani were studied. The attachment of the D-glucosyl residue to validoxylamine A generally diminished the inhibitory activity against trehalase. The introduction of the D-glucosyl residue at the C-3 position did not cause serious loss in activity, while substitution at the C-6' position caused complete loss in trehalase inhibitory activity. Of the eight beta-D-glucosides, 4-O-beta-D-glucopyranosylvalidoxylamine A (4-O-beta-Glc-VA), 3-O-beta-Glc-VA and 5'-O-beta-Glc-VA exhibited very strong activity against R. solani in the "dendroid-test method". The antagonistic activity of sugars (1 mM) against validoxylamine A and 4-O-beta-Glc-VA was examined using the "dendroid-test method". The inhibitory effect of validoxylamine A on hyphal extension was not antagonized by any sugars tested, whereas that of 4-O-beta-Glc-VA was antagonized by beta-1,3- and beta-1,4-glucooligosaccharides. Of 2-O-, 3-O-, 4-O- and 7-O-beta-Glc-VAs, 7-O-beta-Glc-VA exhibiting the lowest activity was not antagonized by any beta-glucooligosaccharides tested. The inhibitory effect of 3-O- and 4-O-beta-Glc-VAs was antagonized by most beta-glucooligosaccharides. The uptake of 4-O-beta-Glc-VA into the mycelia was inhibited by laminaribiose and cellobiose but not by maltose.
Interrogation of low finesse optical fibre Fabry - Pérot interferometers using a four wavelength technique (1996)

A passive signal processing technique for miniature interferometric sensors is reported. It is based on phase stepping techniques and utilizes four adjacent axial modes from a multimode laser diode to provide four phase shifted intensity outputs. It is shown that the effects of multiple reflections on the recovered phase are reduced by approximately two orders of magnitude compared to methods employing two and three phase shifted outputs. Demultiplexing is accomplished using a monochromator and line scan CCD combined with digital processing. Demonstration as a vibration and temperature sensor for a 174 m low finesse fibre Fabry - Pérot cavity produced 50 dB dynamic range and 9 mrad sensitivity at 40 Hz, and 70 range and 0.07 resolution respectively. Systematic errors are also discussed.
Bubble-induced skin-friction drag reduction and the abrupt transition to air-layer drag reduction (2008)

To investigate the phenomena of skin-friction drag reduction in a turbulent boundary layer (TBL) at large scales and high Reynolds numbers, a set of experiments has been conducted at the US Navy's William B. Morgan Large Cavitation Channel (LCC). Drag reduction was achieved by injecting gas (air) from a line source through the wall of a nearly zero-pressure-gradient TBL that formed on a flat-plate test model that was either hydraulically smooth or fully rough. Two distinct drag-reduction phenomena were investigated; bubble drag reduction (BDR) and air-layer drag reduction (ALDR). The streamwise distribution of skin-friction drag reduction was monitored with six skin-friction balances at downstream-distance-based Reynolds numbers to 220 million and at test speeds to 20.0ms −1 . Near-wall bulk void fraction was measured at twelve streamwise locations with impedance probes, and near-wall (0 < Y < 5mm) bubble populations were estimated with a bubble imaging system. The instrument suite was used to investigate the scaling of BDR and the requirements necessary to achieve ALDR. Results from the BDR experiments indicate that: significant drag reduction (>25%) is limited to the first few metres downstream of injection; marginal improvement was possible with a porous-plate versus an open-slot injector design; BDR has negligible sensitivity to surface tension; bubble size is independent of surface tension downstream of injection; BDR is insensitive to boundary-layer thickness at the injection location; and no synergetic effect is observed with compound injection. Using these data, previous BDR scaling methods are investigated, but data collapse is observed only with the ‘initial zone’ scaling, which provides little information on downstream persistence of BDR. ALDR was investigated with a series of experiments that included a slow increase in the volumetric flux of air injected at free-stream speeds to 15.3ms −1 . These results indicated that there are three distinct regions associated with drag reduction with air injection: Region I, BDR; Region II, transition between BDR and ALDR; and Region III, ALDR. In addition, once ALDR was established: friction drag reduction in excess of 80% was observed over the entire smooth model for speeds to 15.3ms −1 ; the critical volumetric flux of air required to achieve ALDR was observed to be approximately proportional to the square of the free-stream speed; slightly higher injection rates were required for ALDR if the surface tension was decreased; stable air layers were formed at free-stream speeds to 12.5ms −1 with the surface fully roughened (though approximately 50% greater volumetric air flux was required); and ALDR was sensitive to the inflow conditions. The sensitivity to the inflow conditions can be mitigated by employing a small faired step (10mm height in the experiment) that helps to create a fixed separation line.
Synthesis of a Rehabilitation Mechanism Replicating Normal Gait (2015)

Effective gait rehabilitation is challenging, often requiring strenuous effort from a therapist, or expensive technology, or both. One rehabilitation method involves assisting the patient's foot through a gait-like trajectory. While numerous devices have been developed to address the gait training needs of adults, these tools do not always scale well to meet the needs of a child's smaller body size. This paper describes the development of a gait-guidance device that could be scaled to address the gait retraining needs of individuals of vary body sizes from a child to an adult.
Short-Term User Authentication Using Eyebrows Biometric For Smartphone Devices (2018)

With the unprecedented mobile technology revolution, biometrics have become a viable alternative to PINs and passwords for secured mobile access and transactions. Recent research has shown the potential of eyebrows as an independent biometric modality for recognition. Eyebrows leverage the benefit of being one-sixth of the facial region, and is therefore computationally efficient and offer fast throughput. The aim of this paper is to exploit eyebrow region for mobile user authentication, and to show the impact factor such as eyeglasses existence on eyebrow-based user authentication. To this aim, Histogram of Oriented Gradients (HOG), a local descriptor, and GIST, a global descriptor, extracted from left and right eyebrow regions are evaluated. The reported results on a publicly available VISOB dataset collected through mobile devices. show a minimum Equal Error Rate (EER) of 3.23% and Area under curve (AUC) of 0.9916 obtained from fusion of left and right eyebrow regions at score level using GIST descriptor. Further, comparative evaluation with existing methods is performed by evaluating the proposed method on FERET face dataset obtaining minimum Equal Error Rate (EER) of 1.08% and Area under curve (AUC) of 0.9990 on fusion of left and right eyebrow regions at score level without eyeglasses using HOG descriptor.
Neural response imaging (NRI) cochlear mapping: prospects for clinical application (2007)

The objective of the study was to investigate the potential for clinical application of neural response imaging (NRI) cochlear mapping. Cochlear mapping was performed at each fitting session up to at least six months following initial fitting. Stimulation was delivered to one electrode site. NRI was recorded from each of the remaining sites. The procedure was repeated for apical, medial and basal stimulation sites, stimulating at subjective threshold and most comfortable levels. Responses were obtained in five out of six subjects and are discussed in terms of: reproducibility, quality, changes over time. Cochlear mapping provided repeatable data that gave interesting insights into the implanted cochlea. Further work is required to determine whether this approach could contribute to programme optimisation.
Hemocompatibility evaluation of poly(diol citrate) <i>in vitro</i> for vascular tissue engineering (2007)

One of the ongoing challenges in tissue engineering is the synthesis of a hemocompatible vascular graft. Specifically, the material used in the construct should have antithrombogenic properties and support the growth of vascular cells. Our laboratory has designed a novel biodegradable, elastomeric copolymer, poly(1,8-octanediol citrate) (POC), with mechanical and degradation properties suitable for vascular tissue engineering. The hemocompatibility of POC in vitro and its ability to support the attachment and differentiation of human aortic endothelial cell (HAEC) was assessed. The thrombogenicity and inflammatory potential of POC were assessed relative to poly(l-lactide-co-glycolide) and expanded poly(tetrafluoroethylene), as they have been used in FDA-approved devices for blood contact. Specifically, platelet aggregation and activation, protein adsorption, plasma clotting, and hemolysis were investigated. To assess the inflammatory potential of POC, the release of IL-1beta and TNF-alpha from THP-1 cells was measured. The cell compatibility of POC was assessed by confirming HAEC differentiation and attachment under flow conditions. POC exhibited decreased platelet adhesion and clotting relative to control materials. Hemolysis was negligible and protein adsorption was comparable to reference materials. IL-1beta and TNF-alpha release from THP-1 cells was comparable among all materials tested, suggesting minimal inflammatory potential. POC supported HAEC differentiation and attachment without any premodification of the surface. The results described herein are encouraging and suggest that POC is hemocompatible and an adequate candidate biomaterial for in vivo vascular tissue engineering.
Reverse-transcriptase activity of Phi29 DNA polymerase (2017)

F29 (Phi29) DNA polymerase is an enzyme commonly used in DNA amplification methods such as rolling circle amplification (RCA) and multiple strand displacement amplification (MDA), as well as in DNA ...