gebhart/patrepeval huggingface dataset:
Electromagnetic Field Analysis of Canned Motor for Hermetic Compressor using 2D Finite Element Method Combined with 3D Method. (1996)

Owing to the regulation of Freon gas in environmental problem, ammonia is recently revalued as refrigerant of compressors. A canned motor was developed as a reliable driver of a hermetic-type ammonia compressor. The canned motor has a thin, metallic can inserted in the airgap of a squirrel-cage induction motor to prevent ammonia from entering the stator and damaging the primary windings.As the can is conductive, eddy current and electromagnetic force are generated in it. To know these phenomena correctly, the finite element analysis is necessary because the equivalent circuit approach is inadequate. As end positions of the can have strong effect on eddy current in the can, a 3D analysis is needed to calculate electric field accurately. Furthermore, a nonlinear analysis with fine mesh in the airgap is required to calculate electromagnetic force distribution. In this case, large amount of computer memory and calculation time will be needed if a full 3D analysis is carried out.In this paper, we present a nonlinear 2D analysis combined with 3D analysis which can calculate both eddy current and electromagnetic force distributions accurately with small computer resources.The analytical results show the good agreement with experimental data. Moreover, we obtain new information which is instructive for the design of canned motors.
A dynamic analysis of a latched CMOS comparator (2004)

In the implementation of high-performance CMOS over-sampling A/D converters, high-speed comparators are indispensable. This paper discusses the design and analysis of a low-power regenerative latched CMOS comparator, based on an analytical approach which gives a deeper insight into the associated trade-offs. Calculation details and simulation results for a 20 MHz clocked comparator in a 0.5/spl mu/m technology are presented.
A study of chain addition polymerizations with temperature variations: II. Thermal runaway and instability—a computer study (1976)

Abstract A computer study was made to determine the thermal ignition criteria and ignition boundaries for chain‐addition polymerization in a well‐mixed batch system using a simple kinetic model. The occurrence of thermal runaway was shown to be a function of initiator type, feed conditions, and heat transport parameters. It was found that thermal runaway does not occur early with respect to monomer and initiator conversions and that for strongly dead‐ending systems, the sensitivity characteristic of ignition disappears. The role of various dimensionless parameters in characterizing reaction behavior is also discussed.
AGUS in cervical endometriosis. (1997)

Physicians monitoring patients after treatment for CIN need to be aware that endometriosis and tuboendometrioid metaplasia may be the source of atypical glandular cells and on occasion may be subject to misinterpretation.
The management of fractures of the hip (1992)

Proximal femoral fractures are a common reason for admission to orthopaedic units, and one which may become even more regular as the population ages. Despite this, newcomers to the orthopaedic arena, such as nursing students, may be confused when faced by different hip fractures and the treatments which may be offered. This article seeks to clarify some of these points by outlining the anatomy of the proximal femoral region, various common fractures, the treatments available to the surgeon and aspects of nursing care associated with the pre and post operative phases of the patient's care.
Importance of S-layer proteins in probiotic activity of Lactobacillus acidophilus M92 (2005)

S-layer proteins have an important role in the establishment of probiotic strain Lactobacillus acidophilus M92 in the gastrointestinal tract.
Investigating the Autonomic Nervous System Response to Anxiety in Children with Autism Spectrum Disorders (2013)

Assessment of anxiety symptoms in autism spectrum disorders (ASD) is a challenging task due to the symptom overlap between the two conditions as well as the difficulties in communication and awareness of emotions in ASD. This motivates the development of a physiological marker of anxiety in ASD that is independent of language and does not require observation of overt behaviour. In this study, we investigated the feasibility of using indicators of autonomic nervous system (ANS) activity for this purpose. Specially, the objectives of the study were to 1) examine whether or not anxiety causes significant measurable changes in indicators of ANS in an ASD population, and 2) characterize the pattern of these changes in ASD. We measured three physiological indicators of the autonomic nervous system response (heart rate, electrodermal activity, and skin temperature) during a baseline (movie watching) and anxiety condition (Stroop task) in a sample of typically developing children (n = 17) and children with ASD (n = 12). The anxiety condition caused significant changes in heart rate and electrodermal activity in both groups, however, a differential pattern of response was found between the two groups. In particular, the ASD group showed elevated heart rate during both baseline and anxiety conditions. Elevated and blunted phasic electrodermal activity were found in the ASD group during baseline and anxiety conditions, respectively. Finally, the ASD group did not show the typical decrease in skin temperature in response to anxiety. These results suggest that 1) signals of the autonomic nervous system may be used as indicators of anxiety in children with ASD, and 2) ASD may be associated with an atypical autonomic response to anxiety that is most consistent with sympathetic over-arousal and parasympathetic under-arousal.
Rationale and experimental design for the va cooperative study of anticoagulation (warfarin) in the treatment of cancer (1979)

Anticoagulants have been demonstrated to reduce tumor growth in certain experimental animal systems. Inhibition of clot formation interferes with tumor growth and spread while enhancement of coagulation promotes tumor growth and spread. The fact that the coagulation mechanism is commonly activated in human malignancy together with preliminary reports of therapeutic efficacy of anticoagulants suggests that the coagulation mechanism may be of pathophysiologic significance also in the growth of human tumors. A VA Cooperative Study has been established to test the hypothesis that warfarin anticoagulation will modify the course of malignancy in man. The purpose of this paper is to present the rationale and experimental design for this study with emphasis on management of anticoagulant administration in cancer patients. This paper serves as the basis for forthcoming reports of toxicity and therapeutic efficacy of warfarin in human malignancy.
S-Nitrosated biodegradable polymers for biomedical applications: synthesis, characterization and impact of thiol structure on the physicochemical properties (2012)

A new class of nitric oxide (NO)-releasing biodegradable polymers has been synthesized by derivatizing poly(lactic-co-glycolic-co-hydroxymethyl propionic acid) (PLGH) polymers with structurally unique thiol functionalities followed by nitrosation with t-butyl nitrite to yield pendant S-nitrosothiol moieties. The extent of thiolation was found to be dependent on the thiol moiety itself with the efficiency of incorporation as follows: cysteamine > cysteine > homocysteine. Glutathione and penicillamine were not incorporated to any significant extent. The structure and polymer environment associated with the pendant thiol has been related to the physicochemical properties of the resulting polymers. To quantify the extent of S-nitrosation, chemiluminescence and UV-visible spectroscopy techniques were employed in combination. The cysteamine and homocysteine derivatives were found to have the highest extent of nitrosation at 93 ± 3% and 96 ± 3%, respectively, followed by 43 ± 1% for cysteine. Thermal decomposition led to near-complete recovery of NO based upon the quantification of the RSNO formation for each nitrosated polymer. Our ability to exert control over the thiol structure, extent of incorporation and the subsequent nitrosation is crucial to the resulting range of NO release kinetics that were yielded. The functional utility of these materials is demonstrated in that these non-toxic polymers release NO under physiological conditions, have degradation profiles that are appropriate for tissue scaffolds and can be prepared as electrospun nanofibers, commonly used in tissue and bone regeneration applications.
Kinetics of the reaction of sulfur dioxide with calcined limestone (1970)

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTKinetics of the reaction of sulfur dioxide with calcined limestoneRobert H. BorgwardtCite this: Environ. Sci. Technol. 1970, 4, 1, 59–63Publication Date (Print):January 1, 1970Publication History Published online1 May 2002Published inissue 1 January 1970https://pubs.acs.org/doi/10.1021/es60036a001https://doi.org/10.1021/es60036a001research-articleACS PublicationsRequest reuse permissionsArticle Views726Altmetric-Citations187LEARN 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
Electrophysiological and Histopathological Characteristics of Progressive Atrioventricular Block Accompanied by Familial Dilated Cardiomyopathy Caused by a Novel Mutation of Lamin A/C Gene (2005)

The clinical phenotype in this family was characterized by (1) the first manifestation of the prolonged PQ interval or AF in adolescence, (2) progressive intra-AV nodal block to the third degree in several years, and (3) progressive heart failure after pacemaker implantation. Histological study revealed preferential degeneration at the AV node area and novel cellular damages in the working myocardium.
Dynamic Response Topology Optimization in the Time Domain Using Equivalent Static Loads (2012)

Most topology optimization techniques find the optimal layout of a structure under static loads. Some studies are focused on dynamic response topology optimization because dynamic forces act in the real world. Dynamic response topology optimization is solved in the time or frequency domain. A method for dynamic response topology optimization in the time domain is proposed using equivalent static loads. Equivalent static loads are static loads that generate the same displacement field as dynamic loads at each time step. The equivalent static loads are made by multiplying the linear stiffness matrix and the displacement field from dynamic analysis and used as multiple loading conditions for linear static topology optimization. The results of topology optimization are again used in dynamic analysis and a cyclic process is used until the convergence criterion is satisfied. The paradigm of the method was originally developed for size and shape optimizations. A new objective function is defined to minimize the peaks of the compliance in the time domain and a convergence criterion is newly defined considering that there are many design variables in topology optimization. The developed method is verified by solving some examples and the results are discussed.
Immunogenicity of Well-Characterized Synthetic<i>Plasmodium falciparum</i>Multiple Antigen Peptide Conjugates (2001)

Given the emerging difficulties with malaria drug resistance and vector control, as well as the persistent lack of an effective vaccine, new malaria vaccine development strategies are needed. We used a novel methodology to synthesize and fully characterize multiple antigen peptide (MAP) conjugates containing protective epitopes from Plasmodium falciparum and evaluated their immunogenicity in four different strains of mice. A di-epitope MAP (T3-T1) containing two T-cell epitopes of liver stage antigen-1 (LSA-1), a di-epitope MAP containing T-cell epitopes from LSA-1 and from merozoite surface protein-1, and a tri-epitope MAP (T3-CS-T1) containing T3-T1 and a potent B-cell epitope from the circumsporozoite protein central repeat region were tested in this study. Mice of all four strains produced peptide-specific antibodies; however, the magnitude of the humoral response indicated strong genetic restriction between the different strains of mice. Anti-MAP antibodies recognized stage-specific proteins on the malaria parasites in an immunofluorescence assay. In addition, serum from hybrid BALB/cJ x A/J CAF1 mice that had been immunized with the tri-epitope MAP T3-CS-T1 successfully inhibited the malaria sporozoite invasion of hepatoma cells in vitro. Spleen cells from immunized mice also showed a genetically restricted cellular immune response when stimulated with the immunogen in vitro. This study indicates that well-characterized MAPs combining solid-phase synthesis and conjugation chemistries are potent immunogens and that this approach can be utilized for the development of subunit vaccines.
Interactions of Hyaluronic Acid with the Skin and Implications for the Dermal Delivery of Biomacromolecules (2015)

Hyaluronic acid (HA) hydrogels are interesting delivery systems for topical applications. Besides moisturizing the skin and improving wound healing, HA facilitates topical drug absorption and is highly compatible with labile biomacromolecules. Hence, in this study we investigated the influence of HA hydrogels with different molecular weights (5 kDa, 100 kDa, 1 MDa) on the skin absorption of the model protein bovine serum albumin (BSA) using fluorescence lifetime imaging microscopy (FLIM). To elucidate the interactions of HA with the stratum corneum and the skin absorption of HA itself, we combined FLIM and Fourier-transform infrared (FTIR) spectroscopy. Our results revealed distinct formulation and skin-dependent effects. In barrier deficient (tape-stripped) skin, BSA alone penetrated into dermal layers. When BSA and HA were applied together, however, penetration was restricted to the epidermis. In normal skin, penetration enhancement of BSA into the epidermis was observed when applying low molecular weight HA (5 kDa). Fluorescence resonance energy transfer analysis indicated close interactions between HA and BSA under these conditions. FTIR spectroscopic analysis of HA interactions with stratum corneum constituents showed an α-helix to β-sheet interconversion of keratin in the stratum corneum, increased skin hydration, and intense interactions between 100 kDa HA and the skin lipids resulting in a more disordered arrangement of the latter. In conclusion, HA hydrogels restricted the delivery of biomacromolecules to the stratum corneum and viable epidermis in barrier deficient skin, and therefore seem to be potential topical drug vehicles. In contrast, HA acted as an enhancer for delivery in normal skin, probably mediated by a combination of cotransport, increased skin hydration, and modifications of the stratum corneum properties.
Behavior of Branched-Terminal, Hydrophobe-Modified, Ethoxylated Urethanes (2000)

Hydrophobically-modified, Ethoxylated URethanes of narrow molecular weight (uni-HEURs) were synthesized with hydrophobic groups of different structure to determine their effect on solution properties. A linear hydrophobe (C12H25) and a branched hydrophobe (b-(C16H34)), of comparable hydrophobicity, were coupled to the ends of a 29,500 Mn polyoxyethylene (POE) via a real telechelic process using 4,4' methylenebis(cyclohexyl isocyanate), H12MDI. The aggregation numbers of these model uni-HEUR solutions increase with polymer concentration and plateau, at a similar value, at high polymer concentrations. However, at higher concentrations the solution viscosities of the uni-HEUR thickeners with the branched hydrophobes are higher than those with linear hydrophobes of the same effective carbon length, but lower than linear hydrophobes with an equivalent number of carbon units per linear chain. It is the number of hydrophobes in the aggregate and not the number of chain ends that is important in building solution viscosities. This is reflected by the longer relaxation times of the branched terminal hydrophobe uniHEUR in oscillatory rheology studies. When H12MDI was used to couple larger hydrophobes to POE the solution viscosity increased dramatically and soft gels were observed; therefore, the influence of branching was examined in greater detail using hexamethylene diisocyanate (HDI) to couple larger branched hydrophobes. Multiple branched hydrophobes in groups of six, varying in size from C10H21 to C16H33, were prepared. These hydrophobe groupings were used to prepare terminal position and comb-architecture uniHEURs and are discussed.
Familiarización de los estudiantes con la actividad científico- investigadora: método dinámico para caracterizar el movimiento de traslación de un cuerpo (2004)

El objetivo principal de este trabajo es mostrar la necesidad derealizar transformaciones en la educacion dirigidas a alcanzar una educacioncientifica en la que juegue un papel trascendental la actividad cientifica -investigadora en los estudiantes. Se describe una experiencia pedagogica,realizada teniendo en cuenta los aspectos fundamentales de la actividadcientifico- investigadora contemporanea, en el aprendizaje de la Mecanica enla Fisica a nivel universitario.
Denoising Techniques With Change-Point Approach for Wavelet-Based Power-Quality Monitoring (2009)

A wavelet-transform (WT)-based power-quality (PQ) monitoring system captures voltage and current waveforms, when magnitudes of WT coefficients exceed the set threshold values across the scales. A lot of literatures has proposed several methods based on WT to detect and classify PQ disturbances. But a problem in the practical implementation of the wavelet-based triggering method is the presence of noise, riding on the signal. The presence of noise not only degrades the detection capability of wavelet-based PQ monitoring systems but also hinders the recovery of important information from the captured waveform for time localization and classification of the disturbances. Therefore, to enhance the performance of WT-based monitoring systems and to improve the classification accuracy of WT-based classifiers, two standard statistical hypothesis test-based denoising procedures have been proposed in this paper. Extensive tests conducted on the data obtained from simulations of a practical distribution system confirm the effectiveness of the proposed approaches in denoising of the PQ waveforms.
Software ingredients (2016)

A software product is often dependent on a large number of third-party components. To assess potential risks, such as security vulnerabilities and license violations, a list of components and their versions in a product is important for release engineers and security analysts. Since such a list is not always available, a code comparison technique named Software Bertillonage has been proposed to test whether a product likely includes a copy of a particular component or not. Although the technique can extract candidates of reused components, a user still has to manually identify the original components among the candidates. In this paper, we propose a method to automatically select the most likely origin of components reused in a product, based on an assumption that a product tends to include an entire copy of a component rather than a partial copy. More concretely, given a Java product and a repository of jar files of existing components, our method selects jar files that can provide Java classes to the product in a greedy manner. To compare the method with the existing technique, we have conducted an evaluation using randomly created jar files including up to 1,000 components. The Software Bertillonage technique reports many candidates; the precision and recall are 0.357 and 0.993, respectively. Our method reports a list of original components whose precision and recall are 0.998 and 0.997.
A comparison of beam propagation and coupled-mode methods: application to optical fiber couplers (1994)

We analyze the instantaneous power in the local normal modes of an optical fiber coupler with both various three-dimensional paraxial electric field propagation methods and coupled-mode theory. Our calculations show that large improvements in speed result if a low-order, split-operator, finite-difference propagation algorithm is substituted for the standard split-step fast Fourier transform technique. Further, as field evolution procedures incorporate higher-order modes, the calculated power transfer ratios agree far better with experiment than the corresponding coupled-mode predictions. The coupled-mode results however, can be improved by taking into consideration the exact shape of the refractive index profile and higher-order modes, while the approach is simple to program, and yields qualitatively correct predictions for performance trends.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
Simple method for pattern nulling by phase perturbation (1983)

A method of sidelobe hulling, which involves perturbing the array illumination phase only, is presented. The general nonlinear problem is linearized by assuming the perturbations to be small, and an analytic solution is derived. Illustrative examples of sinc and Chebyshev patterns with imposed nulls are given.
Temperature coefficient of resistance of piezoresistors (2003)

A simple method to accurately model the temperature coefficient of resistance (TCR) of ion-implanted piezoresistors in silicon is presented. The model takes into account effects of piezoresistor compensation up to an impurity concentration of 10/sup 20/ atoms/cm/sup 2/.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>