Search results for "REE [rare earth element]"

showing 10 items of 1161 documents

Exact Fourier expansion in cylindrical coordinates for the three-dimensional Helmholtz Green function

2009

A new method is presented for Fourier decomposition of the Helmholtz Green Function in cylindrical coordinates, which is equivalent to obtaining the solution of the Helmholtz equation for a general ring source. The Fourier coefficients of the Helmholtz Green function are split into their half advanced+half retarded and half advanced-half retarded components. Closed form solutions are given for these components in terms of a Horn function and a Kampe de Feriet function, respectively. The systems of partial differential equations associated with these two-dimensional hypergeometric functions are used to construct a fourth-order ordinary differential equation which both components satisfy. A s…

42B05Helmholtz equationSeries (mathematics)Applied MathematicsGeneral MathematicsMathematical analysis34B27General Physics and AstronomyFOS: Physical sciencesMathematical Physics (math-ph)Legendre function35J05; 34B27; 42B05symbols.namesake35J05Helmholtz free energysymbolsHypergeometric functionFourier seriesMathematical PhysicsHorn functionBessel functionMathematics
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Thermomineral waters of Greece: geochemical characterization

2020

75 °C). In terms of pH most results vary from 5.5 to 823 °C) ii) warm (23 40 °C) iii) thermal (40 75 °C) and iv) hyperthermal (&gtfew springs show either very low pH (&lt10) proposing serpentinization processes. Regarding TDS concentrations collected waters can be subdivided into low salinity (up to 1.5 g/L) brackish (up to 20 g/L) and saline (up to 43 g/L). The medium high salinities can be justified by mixing with sea water and/or strong waterrock interaction processes. Isotope composition of O and H ranges from 12.7 to +2.7 ‰ SMOW and from 91 to +12 ‰ SMOW respectively and is generally comprised between the Global Meteoric Water Line and the East Mediterranean Meteoric Water Line. Only few water samples show a positive shift for δ18O possibly related to high temperature waterrock interaction processes. Carbon dioxide (18 997000 μmol/mol) or N2 (1100 989000 μmol/mol) or CH4 (&ltMany geothermal areas of Greece are located in regions affected by Miocene or Quaternary volcanism and in continental basins characterised by elevated heat flow. Moreover the majority of them is found along the coast as well as in islands of the Aegean Sea and thus thermal water is often brackish to saline due to marine intrusion into costal aquifer. In the present study almost 300 thermal and cold mineral water samples were collected along the Hellenic territory with their physicochemical parameters (temperature pH electrical conductivity and Eh) and the amount of bicarbonates (titration with 0.1N HCl) being determined in situ. Additionally gases found either in free or dissolved phase were sampled. Both water and gas samples were analysed at the INGVPa laboratories for major ions (Ion Chromatography) silica (Inductively Coupled Plasma Optical Emission Spectrometry) chemical composition of free and dissolved gases (Gas Chromatography) water isotopes (O and H) and carbon and helium isotopes of free and dissolved gases (Mass Spectrometry). The temperature of the investigated waters ranges from 6.5 to 98°C pH from 1.96 to 11.98 whilst Total Dissolved Solids (TDS) from 0.06 to 43 g/L. Based on the temperature parameter waters can be divided into four groups: i) cold (&lt0.5 913000 μmol/mol) are the prevailing gas species found in the studied sites. The δ13CCO2 values ranged from 20.1 to +8.5 ‰ whilst the isotope ratio of He from 0.21 to 6.71 R/RA.4) suggesting interaction with H2Srich gases or very high pH values (&gtSettore GEO/08 - Geochimica E Vulcanologia
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Cláusulas laborales en tratados comerciales internacionales: el caso del CETA

2017

Algunos acontecimientos recientes parecen mostrar una cierta oposición de la ciudanía de los países occidentales hacia el libre comercio. De una parte, resultó bastante controvertida la numantina oposición de la pequeña región belga de Valonia a la firma del Tratado de libre comercio entre la UE y Canadá (conocido como CETA), que a punto estuvo de hacerlo descarrilar. Por otra parte, la elección de Donald Trump como presidente de los Estados Unidos parece haber dado al traste con las escasas esperanzas de alcanzar un acuerdo similar con éste país, máxime si se tiene en cuenta que uno de los argumentos centrales de su campaña electoral fue su posición a este tipo de tratados por los, a su ju…

:CIENCIAS JURÍDICAS [UNESCO]DerechoIloCetaFree tradeCiencias jurídicasUNESCO::CIENCIAS JURÍDICASClausulas laboralesOitTratados comercialesLibre comercioTradeLabour provisionsCiencias jurídicas. Generalidades
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La constitución del parlamento en caso de presuntas irregularidades electorales: Comentario a la stedh de 10 de julio de 2020 : Caso mugemangango c. …

2021

The ECHR analyzes, through this judgment, a claim based on the violation of the rights to free elections and to an effective remedy, the origin of which is found in a series of alleged electoral irregularities. The national body that had to resolve this issue was not impartial, and the complaint procedure lacked adequate and sufficient guarantees

:CIENCIAS JURÍDICAS [UNESCO]a claim based on the violation of the rights to free elections and to an effective remedycandidatoderecho a elecciones libres2070-8157 22082 Revista Boliviana de Derecho 565487 2021 31 7730074 La constitución del parlamento en caso de presuntas irregularidades electorales: Comentario a la stedh de 10 de julio de 2020 Caso mugemangango c. Bélgica Climent Gallartthe origin of which is found in a series of alleged electoral irregularities. The national body that had to resolve this issue was not impartialJorge Antonio The ECHR analyzesComentario a la stedh de 10 de julio de 2020 Caso mugemangango c. Bélgica Climent Gallart [2070-8157 22082 Revista Boliviana de Derecho 565487 2021 31 7730074 La constitución del parlamento en caso de presuntas irregularidades electorales]ParliamentdiputadoMember of Parliament. 662 673UNESCO::CIENCIAS JURÍDICASthrough this judgmentand the complaint procedure lacked adequate and sufficient guarantees Parlamentoright to free electionscandidate
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Esigenze conservative e prestazioni tecnologiche: linee guida per la copertura della Domus ellenistica-romana di Taormina

2005

AREE ARCHEOLOGICHE SISTEMI DI PROTEZIONI COPERTURE
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La Carta Audis e le aree ex industriali

2010

L'AUDIS, Associazione Aree Urbane Dismesse, dal 1995 alimenta, attraverso seminari, convegni e pubblicazioni, il dibattito intorno alle questioni relative alla riqualificazione di quegli spazi di scarto definiti, impropriamente, vuoti urbani. L'obiettivo principale della sua attività continua ad essere quello di definire - sulla scorta di quanto maturato sul tema in ambito nazionale e internazionale - un sistema di buone pratiche ad uso di tutti quei soggetti istituzionali, economici e sociali che, con ruoli e interessi differenti, sono coinvolti nei processi di rivalorizzazione delle aree dismesse. Risultato ultimo di questa pluriennale attività è la Carta AUDIS della Rigenerazione Urbana,…

AREE EX INDUSTRIALI - AUDIS - QUALITA'
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L'EX MONTEDISON DI PORTO EMPEDOCLE:RIQUALIFICAZIONE, RECUPERO E RIUSO SOSTENIBILE

2009

AREE EX INDUSTRIALI - QUALITA' - SOSTENIBILITA'
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L'EX MONTEDISON DI PORTO EMPEDOCLE: RIQUALIFICAZIONE, RECUPERO E RIUSO SOSTENIBILE

2009

AREE EX INDUSTRIALI - QUALITA' - SOSTENIBILITA'
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Giant hepatocellular adenoma as cause of severe abdominal pain: a case report

2007

Abstract The authors describe the case of a large hepatocellular adenoma diagnosed in a 30-year old woman who came to us complaining of acute pain in the upper abdominal quadrants. The patient had been taking an oral contraceptive pill for the last ten years. We present the clinical features, the diagnostic work-up and the treatment prescribed.

Abdominal painPathologyoral contraceptive agent EMTREE medical terms: abdominal painanamnesilcsh:Medicinecomputer assisted tomographyaspartate aminotransferaseSurgical oncologynuclear magnetic resonance imagingMedicine(all)oral contraceptionadultarticleGeneral MedicineAbdominal quadrantsfemalepriority journalhistopathologycontrast enhancementdisease severitymedicine.symptomEMTREE drug terms: alanine aminotransferasemedicine.medical_specialtyOral contraceptive pillcontrast mediummedicinediffusion weighted imagingcase reportfollow uphumanAcute painliver biopsydrug useliver lobectomybusiness.industryGeneral surgeryPublic healthlcsh:RechographyHepatocellular adenomaliver angiographymedicine.diseasetumor bleedinghuman tissueclinical featurenausea and vomitingbusinessaspartate aminotransferase blood levelliver adenomaalanine aminotransferase blood level
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Physical activity and fat-free mass during growth and in later life.

2021

ABSTRACT Background Physical activity may be a way to increase and maintain fat-free mass (FFM) in later life, similar to the prevention of fractures by increasing peak bone mass. Objectives A study is presented of the association between FFM and physical activity in relation to age. Methods In a cross-sectional study, FFM was analyzed in relation to physical activity in a large participant group as compiled in the International Atomic Energy Agency Doubly Labeled Water database. The database included 2000 participants, age 3–96 y, with measurements of total energy expenditure (TEE) and resting energy expenditure (REE) to allow calculation of physical activity level (PAL = TEE/REE), and cal…

Adipose Tissue/metabolismMaleAgingIMPACTMedicine (miscellaneous)Medical and Health SciencesLONGITUDINAL CHANGESRC12000302 clinical medicineEngineeringenergy expenditureFaculty of Science80 and overMedicineWATER030212 general & internal medicineChildInternational Atomic Energy Agency Doubly Labeled Water database groupAged 80 and overNutrition and DieteticsMiddle Aged3142 Public health care science environmental and occupational healthEditorialAdipose TissueChild PreschoolFemalephysical activity levelPeak bone massAdultAdolescentPhysical activityBONE MASS030209 endocrinology & metabolismDoubly labeled waterFat massVDP::Medisinske Fag: 700::Helsefag: 800::Ernæring: 81103 medical and health sciencesYoung AdultAnimal scienceTotal energy expenditureFat free massClinical ResearchBENEFITSHumansResting energy expenditure/dk/atira/pure/core/keywords/TheFacultyOfSciencePreschoolExerciseNutritionAgedbody compositionNutrition & DieteticsAdipose Tissue/metabolism; Adolescent; Adult; Aged; Aged 80 and over; Body Composition; Child; Child Preschool; Cross-Sectional Studies; Energy Metabolism; Exercise; Female; Humans; Male; Middle Aged; Young Adult; age; body composition; doubly labeled water; energy expenditure; physical activity levelbusiness.industryPreventionPhysical activity leveldoubly labeled water3141 Health care scienceCross-Sectional StudiesageLEAN BODY-MASSYOUNGWEIGHTbusinessEnergy Metabolismhuman activities
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