Search results for "Rating"

showing 10 items of 2021 documents

Probing Poly(n-butyl-methacrylate) Latex Film via Diffusion of Hydrophilic and Hydrophobic Dye Molecules

2003

In the study of holographic grating relaxation (forced Rayleigh scattering, FRS) in nascent latex films we examined poly(n-butyl methacrylate) films using two complementary diffusing probes:  a hyd...

Polymers and PlasticsHolographic gratingChemistryDiffusionOrganic ChemistryRelaxation (NMR)MethacrylatePoly n-butyl methacrylateInorganic Chemistrysymbols.namesakePolymer chemistryMaterials ChemistrysymbolsMoleculeForced Rayleigh scatteringRayleigh scatteringMacromolecules
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Introduction into the study of translational diffusion by laser techniques

1988

Breve description de la technique du reseau holographique pour mesurer les coefficients de diffusion de traceurs dans des polymeres et de la technique de spectrometrie de correlation de photon pour la mesure des coefficients de diffusions mutuelle dans des melanges de polymeres

Polymers and PlasticsHolographic gratingbusiness.industryChemistryOrganic ChemistryCondensed Matter PhysicsLaserLight scatteringlaw.inventionInterferometryOpticslawMaterials ChemistryDiffusion (business)businessMakromolekulare Chemie. Macromolecular Symposia
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Surface-relief gratings in halogen-bonded polymer-azobenzene complexes A concentration-dependence study

2017

In recent years, supramolecular complexes comprising a poly(4-vinylpyridine) backbone and azobenzene-based halogen bond donors have emerged as a promising class of materials for the inscription of light-induced surface-relief gratings (SRGs). The studies up to date have focused on building supramolecular hierarchies, i.e., optimizing the polymer–azobenzene noncovalent interaction for efficient surface patterning. They have been conducted using systems with relatively low azobenzene content, and little is known about the concentration dependence of SRG formation in halogen-bonded polymer–azobenzene complexes. Herein, we bridge this gap, and study the concentration dependence of SRG formation…

Polymers116 Chemical sciencesPharmaceutical Science02 engineering and technologyPhotoresponsiveMicroscopy Atomic Force01 natural sciencesAnalytical Chemistrylaw.inventionchemistry.chemical_compoundHalogenslawDrug DiscoverySupramolecularPolymerchemistry.chemical_classificationHalogen bondMolecular StructureAzobenzenePolymer021001 nanoscience & nanotechnologyAzobenzeneChemistry (miscellaneous)HalogenHalogenMolecular MedicineHalogen bonding0210 nano-technologyMaterials scienceSurface PropertiesChemieSupramolecular chemistry010402 general chemistrySurface-relief gratingArticleAzo Compoundlcsh:QD241-441lcsh:Organic chemistryOptical microscopeMoleculePhysical and Theoretical ChemistryThin filmta114Organic Chemistry0104 chemical sciencesCrystallographychemistrysurface-relief grating; azobenzene; halogen bonding; supramolecular; photoresponsiveSettore CHIM/07 - Fondamenti Chimici Delle TecnologieAzo CompoundsMOLECULES
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Relative efficiency revealed: Equations for k<inf>1</inf>–k<inf>6</inf> of the PVGIS model

2014

The European PV Geographical Information System (PVGIS) describes module performance in terms of the relative efficiency with respect to Standard Testing Conditions (STC). The efficiency's dependence on irradiance and operating temperature is modeled with a bi-quadratic polynomial with respect to the relative temperature and the logarithm of relative irradiance. In earlier works, the present author derived relations between two model coefficients describing the irradiance dependence at 25°C, k 1 and k 2 , and I–V curve model parameters such as the series resistance RS and the ideality factor n. There was good agreement between the theoretical and fitted values of k 1 , but the fitted values…

PolynomialEfficiencyLogarithmOperating temperatureEquivalent series resistancebusiness.industryMathematical analysisElectrical engineeringIrradianceModel parametersbusinessPerformance modelMathematics2014 IEEE 40th Photovoltaic Specialist Conference (PVSC)
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The merits and limits of pooling data from nuclear power worker studies

2015

Pooling dataDatabaseRisk analysis (engineering)business.industryMedicineHematologyEnergy-Generating ResourcesOccupational exposureNuclear powercomputer.software_genrebusinesscomputerPower (Psychology)The Lancet Haematology
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Penetrating aortic ulcer post migration of thoracic aortic endoprosthesis: Case report

2021

Introduction Thoracic endovascular aortic repair (TEVAR) is the first treatment option for many thoracic aortic pathologies. Especially after aortic dissections, it is possible to have progression during follow-up with appearance of new lesions on arterial wall. Herein, we report a case of Penetrating Aortic Ulcer (PAU) post release of Thoracic endoprosthesis. Presentation of case A 67-years-old male with hypertension and diabetes mellitus was followed at our hospital after an emergency procedure for Type B aortic dissection (TBAD) complicated by symptomatic large infrarenal AAA and treated with a proximal TEVAR plus chimney for left subclavian artery and PETTICOAT with EVAR for abdominal a…

Post releasemedicine.medical_specialtyTEVARbusiness.industrymedicine.medical_treatmentStentTreatment optionsmedicine.diseaseAortic diseaseProsthesisSettore MED/22 - Chirurgia VascolareSurgeryPenetrating atherosclerotic ulcerPenetrating atherosclerotic ulcermedicine.arteryCase reportcardiovascular systemmedicineThoracic aortaSurgeryArterial wallComplicated aortic B dissectionbusinessMigration endoprosthesis
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An association between plasma ferritin concentrations measured 48 h after delivery and postpartum depression.

2010

Abstract Context Iron deficiency is the most common nutritional problem experienced by childbearing women, and postpartum depression (PPD) is the most common psychiatric disorder seen during the first year after delivery. The possible link between iron deficiency and PPD is not clear. Objective To evaluate whether iron status 48 h after delivery was associated with PPD. Our hypothesis was that iron deficiency would be associated with PPD. Design This was a prospective cohort study of depression-free women studied in the postpartum period. Setting Women who give birth at obstetric units in several general hospitals in Spain. Participants A subsample of 729 women was included in the present s…

Postpartum depressionAdultmedicine.medical_specialtyTime FactorsAnemiaContext (language use)Statistics NonparametricDepression PostpartummedicineHumansProspective Studieschemistry.chemical_classificationPsychiatric Status Rating ScalesChi-Square DistributionbiologyAnemia Iron-DeficiencyTransferrin saturationbusiness.industryObstetricsPostpartum PeriodIron deficiencymedicine.diseaseFerritinPsychiatry and Mental healthClinical PsychologyLogistic ModelschemistryTransferrinSpainImmunologyFerritinsbiology.proteinFemalebusinessPostpartum periodJournal of affective disorders
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Research Letter: is neuroticism a risk factor for postpartum depression?

2012

Although the relationship between personality and depressive illness is complex (Shea, 2005), there is empirical evidence that some personality features such as neuroticism, harm avoidance, introversion, dependency, self-criticism or perfectionism are related to depressive illness risk (Gunderson et al. 1999). Moreover, personality traits, especially neuroticism, may explain the increased prevalence of depression among females (Goodwin & Gotlib, 2004). Few studies have explored neuroticism, extraversion and psychoticism as risk factors for depression after an event as stressful as childbirth. Pitt (1968) was the first author to report high scores on neuroticism and low scores on extraversio…

Postpartum depressionNeurotic DisordersDepresión postpartoEvaluación de la personalidad:Named Groups::Persons::Age Groups::Adult::Middle Aged [Medical Subject Headings]medicine.disease_causePersonality Assessment:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Probability::Risk::Risk Factors [Medical Subject Headings]:Organisms::Eukaryota::Animals::Chordata::Vertebrates::Mammals::Primates::Haplorhini::Catarrhini::Hominidae::Humans [Medical Subject Headings]PregnancyRisk Factors62P ApplicationsBig Five personality traits:Psychiatry and Psychology::Mental Disorders::Neurotic Disorders [Medical Subject Headings]Applied Psychology:Phenomena and Processes::Reproductive and Urinary Physiological Phenomena::Reproductive Physiological Phenomena::Reproductive Physiological Processes::Reproduction::Pregnancy [Medical Subject Headings]education.field_of_studyPerfectionism (psychology)Middle AgedNeuroticismPsychiatry and Mental healthMathematical statistics:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Statistics as Topic::Models Statistical::Logistic Models [Medical Subject Headings]:Named Groups::Persons::Age Groups::Adolescent [Medical Subject Headings]Harm avoidanceFemaleEstudios de seguimientoPsychology:Psychiatry and Psychology::Behavioral Disciplines and Activities::Personality Assessment [Medical Subject Headings]Factores de riesgoAdultmedicine.medical_specialtyAdolescent:Named Groups::Persons::Age Groups::Adult::Young Adult [Medical Subject Headings]PopulationEstadísticaDepression PostpartumYoung AdultPsychoticismCorrespondence:Analytical Diagnostic and Therapeutic Techniques and Equipment::Investigative Techniques::Epidemiologic Methods::Epidemiologic Study Characteristics as Topic::Epidemiologic Studies::Cohort Studies::Longitudinal Studies::Follow-Up Studies [Medical Subject Headings]medicine:Named Groups::Persons::Age Groups::Adult [Medical Subject Headings]Humans:Psychiatry and Psychology::Behavioral Disciplines and Activities::Psychiatric Status Rating Scales [Medical Subject Headings]Escalas de valoración psiquiátricaPsychiatryeducationPsychiatric Status Rating ScalesExtraversion and introversion:Matemàtiques i estadística::Estadística aplicada::Estadística biosanitària [Àrees temàtiques de la UPC]:Psychiatry and Psychology::Mental Disorders::Mood Disorders::Depressive Disorder::Depression Postpartum [Medical Subject Headings]medicine.diseaseLogistic Models:Check Tags::Female [Medical Subject Headings]Trastornos neuróticosFollow-Up Studies
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A distributed minimum losses optimal power flow for islanded microgrids

2017

Abstract In this work, the minimum losses optimal power dispatch problem for islanded microgrids with distributed energy resources (DER) is solved by means of a distributed heuristic approach. Optimal power management is performed almost in real time, with a predefined schedule, i.e. every 5 min, and the solution is applied to generators when the current operating solution violates voltage or current constraints or when the current configuration produces too large power losses. The operating point of both inverter-interfaced generation units as well as rotating production systems can be modified simply using local information. The latter are voltage measurements and power injections or load…

Power managementOperating pointEngineeringScheduleMicrogridIslanded operationHeuristic (computer science)business.industry020209 energy020208 electrical & electronic engineeringEnergy Engineering and Power Technology02 engineering and technologyDistributed optimizationPower (physics)Settore ING-IND/33 - Sistemi Elettrici Per L'EnergiaControl theoryDistributed algorithmDistributed generation0202 electrical engineering electronic engineering information engineeringOPFElectrical and Electronic EngineeringbusinessVoltageElectric Power Systems Research
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Power system consumption model using SPICE

2014

Space missions have very stringent mass, volume and also power budgets. This requires very precise knowledge of the power consumption of the whole satellite, not only peak power but also static and long term dynamic power. This calculation becomes very complex if all the operational modes (long term dynamic changes) are taken into account, including the different environmental situations. The power budget of any Power Converter Module (PCM), which includes not only the DC/DC converter but also the distribution unit, depends on the power it delivers and on external factors like temperature and input voltage. We propose to use a linear SPICE model using electronic models of discrete component…

Power optimizerEngineeringElectric power systemPower ratingSwitched-mode power supplybusiness.industryControl theoryPower moduleElectronic engineeringPower factorPower engineeringbusinessPower budget2014 IEEE 15th Workshop on Control and Modeling for Power Electronics (COMPEL)
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